From 33590be53e3546032d0e79cb193c3626e49de6b5 Mon Sep 17 00:00:00 2001 From: "renovate[bot]" <29139614+renovate[bot]@users.noreply.github.com> Date: Fri, 15 Nov 2024 14:44:10 -0500 Subject: [PATCH] fix(deps): update module k8s.io/apimachinery to v0.31.2 (#14959) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Co-authored-by: Paul Rogers --- go.mod | 7 +- go.sum | 26 +- pkg/iter/sample_iterator_test.go | 2 +- .../shipper/indexshipper/tsdb/head_manager.go | 2 +- .../jumphash/memcached_client_selector.go | 2 +- vendor/github.com/cespare/xxhash/LICENSE.txt | 22 - vendor/github.com/cespare/xxhash/README.md | 50 - vendor/github.com/cespare/xxhash/rotate.go | 14 - vendor/github.com/cespare/xxhash/rotate19.go | 14 - vendor/github.com/cespare/xxhash/xxhash.go | 168 - .../github.com/cespare/xxhash/xxhash_amd64.go | 12 - .../github.com/cespare/xxhash/xxhash_amd64.s | 233 -- .../github.com/cespare/xxhash/xxhash_other.go | 75 - .../github.com/cespare/xxhash/xxhash_safe.go | 10 - .../cespare/xxhash/xxhash_unsafe.go | 30 - .../github.com/fxamacker/cbor/v2/.gitignore | 12 + .../fxamacker/cbor/v2/.golangci.yml | 104 + .../fxamacker/cbor/v2/CODE_OF_CONDUCT.md | 133 + .../fxamacker/cbor/v2/CONTRIBUTING.md | 41 + vendor/github.com/fxamacker/cbor/v2/LICENSE | 21 + vendor/github.com/fxamacker/cbor/v2/README.md | 691 ++++ .../github.com/fxamacker/cbor/v2/SECURITY.md | 7 + .../fxamacker/cbor/v2/bytestring.go | 63 + vendor/github.com/fxamacker/cbor/v2/cache.go | 363 ++ vendor/github.com/fxamacker/cbor/v2/common.go | 182 + vendor/github.com/fxamacker/cbor/v2/decode.go | 3187 +++++++++++++++++ .../github.com/fxamacker/cbor/v2/diagnose.go | 724 ++++ vendor/github.com/fxamacker/cbor/v2/doc.go | 129 + vendor/github.com/fxamacker/cbor/v2/encode.go | 1989 ++++++++++ .../fxamacker/cbor/v2/encode_map.go | 94 + .../fxamacker/cbor/v2/encode_map_go117.go | 60 + .../fxamacker/cbor/v2/simplevalue.go | 69 + vendor/github.com/fxamacker/cbor/v2/stream.go | 277 ++ .../fxamacker/cbor/v2/structfields.go | 260 ++ vendor/github.com/fxamacker/cbor/v2/tag.go | 299 ++ vendor/github.com/fxamacker/cbor/v2/valid.go | 394 ++ vendor/github.com/x448/float16/.travis.yml | 13 + vendor/github.com/x448/float16/LICENSE | 22 + vendor/github.com/x448/float16/README.md | 133 + vendor/github.com/x448/float16/float16.go | 302 ++ .../pkg/api/resource/generated.pb.go | 43 +- .../apimachinery/pkg/api/resource/quantity.go | 29 + .../apimachinery/pkg/api/validation/OWNERS | 11 + .../pkg/apis/meta/v1/controller_ref.go | 13 +- .../pkg/apis/meta/v1/generated.pb.go | 708 ++-- .../pkg/apis/meta/v1/generated.proto | 45 +- .../apimachinery/pkg/apis/meta/v1/helpers.go | 83 +- .../pkg/apis/meta/v1/micro_time.go | 28 + .../apimachinery/pkg/apis/meta/v1/time.go | 29 + .../apimachinery/pkg/apis/meta/v1/types.go | 62 + .../meta/v1/types_swagger_doc_generated.go | 11 + .../pkg/apis/meta/v1/validation/validation.go | 41 +- .../pkg/apis/meta/v1/zz_generated.deepcopy.go | 21 + .../pkg/apis/meta/v1beta1/generated.pb.go | 45 +- .../pkg/apis/meta/v1beta1/generated.proto | 4 +- .../apimachinery/pkg/labels/selector.go | 20 + .../apimachinery/pkg/runtime/extension.go | 100 +- .../apimachinery/pkg/runtime/generated.pb.go | 65 +- .../k8s.io/apimachinery/pkg/runtime/helper.go | 12 +- .../pkg/runtime/schema/generated.pb.go | 31 +- .../runtime/serializer/cbor/direct/direct.go | 36 + .../serializer/cbor/internal/modes/buffers.go | 65 + .../serializer/cbor/internal/modes/custom.go | 422 +++ .../serializer/cbor/internal/modes/decode.go | 158 + .../cbor/internal/modes/diagnostic.go | 36 + .../serializer/cbor/internal/modes/encode.go | 155 + .../k8s.io/apimachinery/pkg/runtime/types.go | 1 + .../apimachinery/pkg/util/framer/framer.go | 18 +- .../pkg/util/intstr/generated.pb.go | 47 +- .../apimachinery/pkg/util/intstr/intstr.go | 26 + .../pkg/util/managedfields/node.yaml | 2 +- .../apimachinery/pkg/util/runtime/runtime.go | 135 +- .../k8s.io/apimachinery/pkg/util/sets/doc.go | 2 +- .../apimachinery/pkg/util/sets/ordered.go | 53 - .../k8s.io/apimachinery/pkg/util/sets/set.go | 17 +- .../apimachinery/pkg/util/validation/OWNERS | 11 + .../pkg/util/validation/validation.go | 56 +- .../apimachinery/pkg/util/version/version.go | 112 + vendor/k8s.io/apimachinery/pkg/watch/watch.go | 40 +- vendor/modules.txt | 18 +- vendor/sigs.k8s.io/yaml/LICENSE | 256 ++ vendor/sigs.k8s.io/yaml/OWNERS | 8 +- vendor/sigs.k8s.io/yaml/fields.go | 55 +- vendor/sigs.k8s.io/yaml/goyaml.v2/LICENSE | 201 ++ .../yaml/goyaml.v2/LICENSE.libyaml | 31 + vendor/sigs.k8s.io/yaml/goyaml.v2/NOTICE | 13 + vendor/sigs.k8s.io/yaml/goyaml.v2/OWNERS | 24 + vendor/sigs.k8s.io/yaml/goyaml.v2/README.md | 143 + vendor/sigs.k8s.io/yaml/goyaml.v2/apic.go | 744 ++++ vendor/sigs.k8s.io/yaml/goyaml.v2/decode.go | 815 +++++ vendor/sigs.k8s.io/yaml/goyaml.v2/emitterc.go | 1685 +++++++++ vendor/sigs.k8s.io/yaml/goyaml.v2/encode.go | 390 ++ vendor/sigs.k8s.io/yaml/goyaml.v2/parserc.go | 1095 ++++++ vendor/sigs.k8s.io/yaml/goyaml.v2/readerc.go | 412 +++ vendor/sigs.k8s.io/yaml/goyaml.v2/resolve.go | 258 ++ vendor/sigs.k8s.io/yaml/goyaml.v2/scannerc.go | 2711 ++++++++++++++ vendor/sigs.k8s.io/yaml/goyaml.v2/sorter.go | 113 + vendor/sigs.k8s.io/yaml/goyaml.v2/writerc.go | 26 + vendor/sigs.k8s.io/yaml/goyaml.v2/yaml.go | 478 +++ vendor/sigs.k8s.io/yaml/goyaml.v2/yamlh.go | 739 ++++ .../yaml/goyaml.v2/yamlprivateh.go | 173 + vendor/sigs.k8s.io/yaml/yaml.go | 145 +- vendor/sigs.k8s.io/yaml/yaml_go110.go | 17 + 103 files changed, 22350 insertions(+), 1229 deletions(-) delete mode 100644 vendor/github.com/cespare/xxhash/LICENSE.txt delete mode 100644 vendor/github.com/cespare/xxhash/README.md delete mode 100644 vendor/github.com/cespare/xxhash/rotate.go delete mode 100644 vendor/github.com/cespare/xxhash/rotate19.go delete mode 100644 vendor/github.com/cespare/xxhash/xxhash.go delete mode 100644 vendor/github.com/cespare/xxhash/xxhash_amd64.go delete mode 100644 vendor/github.com/cespare/xxhash/xxhash_amd64.s delete mode 100644 vendor/github.com/cespare/xxhash/xxhash_other.go delete mode 100644 vendor/github.com/cespare/xxhash/xxhash_safe.go delete mode 100644 vendor/github.com/cespare/xxhash/xxhash_unsafe.go create mode 100644 vendor/github.com/fxamacker/cbor/v2/.gitignore create mode 100644 vendor/github.com/fxamacker/cbor/v2/.golangci.yml create mode 100644 vendor/github.com/fxamacker/cbor/v2/CODE_OF_CONDUCT.md create mode 100644 vendor/github.com/fxamacker/cbor/v2/CONTRIBUTING.md create mode 100644 vendor/github.com/fxamacker/cbor/v2/LICENSE create mode 100644 vendor/github.com/fxamacker/cbor/v2/README.md create mode 100644 vendor/github.com/fxamacker/cbor/v2/SECURITY.md create mode 100644 vendor/github.com/fxamacker/cbor/v2/bytestring.go create mode 100644 vendor/github.com/fxamacker/cbor/v2/cache.go create mode 100644 vendor/github.com/fxamacker/cbor/v2/common.go create mode 100644 vendor/github.com/fxamacker/cbor/v2/decode.go create mode 100644 vendor/github.com/fxamacker/cbor/v2/diagnose.go create mode 100644 vendor/github.com/fxamacker/cbor/v2/doc.go create mode 100644 vendor/github.com/fxamacker/cbor/v2/encode.go create mode 100644 vendor/github.com/fxamacker/cbor/v2/encode_map.go create mode 100644 vendor/github.com/fxamacker/cbor/v2/encode_map_go117.go create mode 100644 vendor/github.com/fxamacker/cbor/v2/simplevalue.go create mode 100644 vendor/github.com/fxamacker/cbor/v2/stream.go create mode 100644 vendor/github.com/fxamacker/cbor/v2/structfields.go create mode 100644 vendor/github.com/fxamacker/cbor/v2/tag.go create mode 100644 vendor/github.com/fxamacker/cbor/v2/valid.go create mode 100644 vendor/github.com/x448/float16/.travis.yml create mode 100644 vendor/github.com/x448/float16/LICENSE create mode 100644 vendor/github.com/x448/float16/README.md create mode 100644 vendor/github.com/x448/float16/float16.go create mode 100644 vendor/k8s.io/apimachinery/pkg/api/validation/OWNERS create mode 100644 vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct/direct.go create mode 100644 vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/buffers.go create mode 100644 vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/custom.go create mode 100644 vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/decode.go create mode 100644 vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/diagnostic.go create mode 100644 vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/encode.go delete mode 100644 vendor/k8s.io/apimachinery/pkg/util/sets/ordered.go create mode 100644 vendor/k8s.io/apimachinery/pkg/util/validation/OWNERS create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/LICENSE create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/LICENSE.libyaml create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/NOTICE create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/OWNERS create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/README.md create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/apic.go create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/decode.go create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/emitterc.go create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/encode.go create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/parserc.go create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/readerc.go create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/resolve.go create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/scannerc.go create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/sorter.go create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/writerc.go create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/yaml.go create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/yamlh.go create mode 100644 vendor/sigs.k8s.io/yaml/goyaml.v2/yamlprivateh.go diff --git a/go.mod b/go.mod index 3980e4790c122..ad15b4c174ae9 100644 --- a/go.mod +++ b/go.mod @@ -22,7 +22,6 @@ require ( github.com/baidubce/bce-sdk-go v0.9.200 github.com/bmatcuk/doublestar v1.3.4 github.com/c2h5oh/datasize v0.0.0-20231215233829-aa82cc1e6500 - github.com/cespare/xxhash v1.1.0 github.com/cespare/xxhash/v2 v2.3.0 github.com/containerd/fifo v1.1.0 github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf @@ -152,7 +151,7 @@ require ( golang.org/x/text v0.20.0 google.golang.org/protobuf v1.35.2 gotest.tools v2.2.0+incompatible - k8s.io/apimachinery v0.29.3 + k8s.io/apimachinery v0.31.2 k8s.io/utils v0.0.0-20240902221715-702e33fdd3c3 ) @@ -168,6 +167,7 @@ require ( github.com/GoogleCloudPlatform/opentelemetry-operations-go/internal/resourcemapping v0.48.1 // indirect github.com/dlclark/regexp2 v1.4.0 // indirect github.com/ebitengine/purego v0.8.1 // indirect + github.com/fxamacker/cbor/v2 v2.7.0 // indirect github.com/gabriel-vasile/mimetype v1.4.3 // indirect github.com/go-ini/ini v1.67.0 // indirect github.com/go-ole/go-ole v1.2.6 // indirect @@ -184,6 +184,7 @@ require ( github.com/rivo/uniseg v0.4.7 // indirect github.com/tklauser/go-sysconf v0.3.12 // indirect github.com/tklauser/numcpus v0.6.1 // indirect + github.com/x448/float16 v0.8.4 // indirect github.com/yusufpapurcu/wmi v1.2.4 // indirect go.opentelemetry.io/contrib/detectors/gcp v1.29.0 // indirect go.opentelemetry.io/otel/sdk v1.29.0 // indirect @@ -375,7 +376,7 @@ require ( rsc.io/binaryregexp v0.2.0 // indirect sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect - sigs.k8s.io/yaml v1.3.0 // indirect + sigs.k8s.io/yaml v1.4.0 // indirect ) replace github.com/Azure/azure-sdk-for-go => github.com/Azure/azure-sdk-for-go v36.2.0+incompatible diff --git a/go.sum b/go.sum index a1c5a845e3bec..0619c8f03256b 100644 --- a/go.sum +++ b/go.sum @@ -891,7 +891,6 @@ github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb0 github.com/NYTimes/gziphandler v1.0.1/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ= github.com/NYTimes/gziphandler v1.1.1 h1:ZUDjpQae29j0ryrS0u/B8HZfJBtBQHjqw2rQ2cqUQ3I= github.com/NYTimes/gziphandler v1.1.1/go.mod h1:n/CVRwUEOgIxrgPvAQhUUr9oeUtvrhMomdKFjzJNB0c= -github.com/OneOfOne/xxhash v1.2.2 h1:KMrpdQIwFcEqXDklaen+P1axHaj9BSKzvpUUfnHldSE= github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU= github.com/PuerkitoBio/purell v1.0.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0= github.com/PuerkitoBio/purell v1.1.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0= @@ -1049,7 +1048,6 @@ github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA github.com/census-instrumentation/opencensus-proto v0.3.0/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= github.com/census-instrumentation/opencensus-proto v0.4.1 h1:iKLQ0xPNFxR/2hzXZMrBo8f1j86j5WHzznCCQxV/b8g= github.com/census-instrumentation/opencensus-proto v0.4.1/go.mod h1:4T9NM4+4Vw91VeyqjLS6ao50K5bOcLKN6Q42XnYaRYw= -github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko= github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc= github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= @@ -1295,6 +1293,8 @@ github.com/fsouza/fake-gcs-server v1.50.2/go.mod h1:VU6Zgei4647KuT4XER8WHv5Hcj2N github.com/fullstorydev/emulators/storage v0.0.0-20240401123056-edc69752f474 h1:TufioMBjkJ6/Oqmlye/ReuxHFS35HyLmypj/BNy/8GY= github.com/fullstorydev/emulators/storage v0.0.0-20240401123056-edc69752f474/go.mod h1:PQwxF4UU8wuL+srGxr3BOhIW5zXqgucwVlO/nPZLsxw= github.com/fullstorydev/grpchan v1.1.1/go.mod h1:f4HpiV8V6htfY/K44GWV1ESQzHBTq7DinhzqQ95lpgc= +github.com/fxamacker/cbor/v2 v2.7.0 h1:iM5WgngdRBanHcxugY4JySA0nk1wZorNOpTgCMedv5E= +github.com/fxamacker/cbor/v2 v2.7.0/go.mod h1:pxXPTn3joSm21Gbwsv0w9OSA2y1HFR9qXEeXQVeNoDQ= github.com/gabriel-vasile/mimetype v1.4.3 h1:in2uUcidCuFcDKtdcBxlR0rJ1+fsokWf+uqxgUFjbI0= github.com/gabriel-vasile/mimetype v1.4.3/go.mod h1:d8uq/6HKRL6CGdk+aubisF/M5GcPfT7nKyLpA0lbSSk= github.com/garyburd/redigo v1.6.0/go.mod h1:NR3MbYisc3/PwhQ00EMzDiPmrwpPxAn5GI05/YaO1SY= @@ -1501,9 +1501,10 @@ github.com/go-resty/resty/v2 v2.13.1/go.mod h1:GznXlLxkq6Nh4sU59rPmUw3VtgpO3aS96 github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w= github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg= github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY= +github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 h1:p104kn46Q8WdvHunIJ9dAyjPVtrBPhSr3KT2yUst43I= github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE= -github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI= -github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls= +github.com/go-task/slim-sprig/v3 v3.0.0 h1:sUs3vkvUymDpBKi3qH1YSqBQk9+9D/8M2mN1vB6EwHI= +github.com/go-task/slim-sprig/v3 v3.0.0/go.mod h1:W848ghGpv3Qj3dhTPRyJypKRiqCdHZiAzKg9hl15HA8= github.com/go-test/deep v1.0.2/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA= github.com/go-test/deep v1.0.3/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA= github.com/go-test/deep v1.1.0/go.mod h1:5C2ZWiW0ErCdrYzpqxLbTX7MG14M9iiw8DgHncVwcsE= @@ -2275,8 +2276,8 @@ github.com/onsi/ginkgo/v2 v2.1.4/go.mod h1:um6tUpWM/cxCK3/FK8BXqEiUMUwRgSM4JXG47 github.com/onsi/ginkgo/v2 v2.1.6/go.mod h1:MEH45j8TBi6u9BMogfbp0stKC5cdGjumZj5Y7AG4VIk= github.com/onsi/ginkgo/v2 v2.3.0/go.mod h1:Eew0uilEqZmIEZr8JrvYlvOM7Rr6xzTmMV8AyFNU9d0= github.com/onsi/ginkgo/v2 v2.4.0/go.mod h1:iHkDK1fKGcBoEHT5W7YBq4RFWaQulw+caOMkAt4OrFo= -github.com/onsi/ginkgo/v2 v2.13.0 h1:0jY9lJquiL8fcf3M4LAXN5aMlS/b2BV86HFFPCPMgE4= -github.com/onsi/ginkgo/v2 v2.13.0/go.mod h1:TE309ZR8s5FsKKpuB1YAQYBzCaAfUgatB/xlT/ETL/o= +github.com/onsi/ginkgo/v2 v2.19.0 h1:9Cnnf7UHo57Hy3k6/m5k3dRfGTMXGvxhHFvkDTCTpvA= +github.com/onsi/ginkgo/v2 v2.19.0/go.mod h1:rlwLi9PilAFJ8jCg9UE1QP6VBpd6/xj3SRC0d6TU0To= github.com/onsi/gomega v0.0.0-20170829124025-dcabb60a477c/go.mod h1:C1qb7wdrVGGVU+Z6iS04AVkA3Q65CEZX59MT0QO5uiA= github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY= github.com/onsi/gomega v1.7.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY= @@ -2288,8 +2289,8 @@ github.com/onsi/gomega v1.20.1/go.mod h1:DtrZpjmvpn2mPm4YWQa0/ALMDj9v4YxLgojwPeR github.com/onsi/gomega v1.21.1/go.mod h1:iYAIXgPSaDHak0LCMA+AWBpIKBr8WZicMxnE8luStNc= github.com/onsi/gomega v1.22.1/go.mod h1:x6n7VNe4hw0vkyYUM4mjIXx3JbLiPaBPNgB7PRQ1tuM= github.com/onsi/gomega v1.23.0/go.mod h1:Z/NWtiqwBrwUt4/2loMmHL63EDLnYHmVbuBpDr2vQAg= -github.com/onsi/gomega v1.29.0 h1:KIA/t2t5UBzoirT4H9tsML45GEbo3ouUnBHsCfD2tVg= -github.com/onsi/gomega v1.29.0/go.mod h1:9sxs+SwGrKI0+PWe4Fxa9tFQQBG5xSsSbMXOI8PPpoQ= +github.com/onsi/gomega v1.27.6 h1:ENqfyGeS5AX/rlXDd/ETokDz93u0YufY1Pgxuy/PvWE= +github.com/onsi/gomega v1.27.6/go.mod h1:PIQNjfQwkP3aQAH7lf7j87O/5FiNr+ZR8+ipb+qQlhg= github.com/op/go-logging v0.0.0-20160315200505-970db520ece7/go.mod h1:HzydrMdWErDVzsI23lYNej1Htcns9BCg93Dk0bBINWk= github.com/openconfig/gnmi v0.0.0-20180912164834-33a1865c3029/go.mod h1:t+O9It+LKzfOAhKTT5O0ehDix+MTqbtT0T9t+7zzOvc= github.com/opencontainers/go-digest v1.0.0-rc1/go.mod h1:cMLVZDEM3+U2I4VmLI6N8jQYUd2OVphdqWwCJHrFt2s= @@ -2651,6 +2652,8 @@ github.com/willf/bloom v2.0.3+incompatible h1:QDacWdqcAUI1MPOwIQZRy9kOR7yxfyEmxX github.com/willf/bloom v2.0.3+incompatible/go.mod h1:MmAltL9pDMNTrvUkxdg0k0q5I0suxmuwp3KbyrZLOZ8= github.com/wvanbergen/kafka v0.0.0-20171203153745-e2edea948ddf/go.mod h1:nxx7XRXbR9ykhnC8lXqQyJS0rfvJGxKyKw/sT1YOttg= github.com/wvanbergen/kazoo-go v0.0.0-20180202103751-f72d8611297a/go.mod h1:vQQATAGxVK20DC1rRubTJbZDDhhpA4QfU02pMdPxGO4= +github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM= +github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg= github.com/xdg-go/pbkdf2 v1.0.0 h1:Su7DPu48wXMwC3bs7MCNG+z4FhcyEuz5dlvchbq0B0c= github.com/xdg-go/pbkdf2 v1.0.0/go.mod h1:jrpuAogTd400dnrH08LKmI/xc1MbPOebTwRqcT5RDeI= github.com/xdg-go/scram v1.0.2/go.mod h1:1WAq6h33pAW+iRreB34OORO2Nf7qel3VV3fjBj+hCSs= @@ -3815,8 +3818,8 @@ k8s.io/api v0.29.3/go.mod h1:y2yg2NTyHUUkIoTC+phinTnEa3KFM6RZ3szxt014a80= k8s.io/apimachinery v0.17.1/go.mod h1:b9qmWdKlLuU9EBh+06BtLcSf/Mu89rWL33naRxs1uZg= k8s.io/apimachinery v0.22.2/go.mod h1:O3oNtNadZdeOMxHFVxOreoznohCpy0z6mocxbZr7oJ0= k8s.io/apimachinery v0.26.2/go.mod h1:ats7nN1LExKHvJ9TmwootT00Yz05MuYqPXEXaVeOy5I= -k8s.io/apimachinery v0.29.3 h1:2tbx+5L7RNvqJjn7RIuIKu9XTsIZ9Z5wX2G22XAa5EU= -k8s.io/apimachinery v0.29.3/go.mod h1:hx/S4V2PNW4OMg3WizRrHutyB5la0iCUbZym+W0EQIU= +k8s.io/apimachinery v0.31.2 h1:i4vUt2hPK56W6mlT7Ry+AO8eEsyxMD1U44NR22CLTYw= +k8s.io/apimachinery v0.31.2/go.mod h1:rsPdaZJfTfLsNJSQzNHQvYoTmxhoOEofxtOsF3rtsMo= k8s.io/client-go v0.22.2/go.mod h1:sAlhrkVDf50ZHx6z4K0S40wISNTarf1r800F+RlCF6U= k8s.io/client-go v0.26.2/go.mod h1:u5EjOuSyBa09yqqyY7m3abZeovO/7D/WehVVlZ2qcqU= k8s.io/client-go v0.29.3 h1:R/zaZbEAxqComZ9FHeQwOh3Y1ZUs7FaHKZdQtIc2WZg= @@ -3918,6 +3921,7 @@ sigs.k8s.io/structured-merge-diff/v4 v4.4.1 h1:150L+0vs/8DA78h1u02ooW1/fFq/Lwr+s sigs.k8s.io/structured-merge-diff/v4 v4.4.1/go.mod h1:N8hJocpFajUSSeSJ9bOZ77VzejKZaXsTtZo4/u7Io08= sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o= sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc= -sigs.k8s.io/yaml v1.3.0 h1:a2VclLzOGrwOHDiV8EfBGhvjHvP46CtW5j6POvhYGGo= sigs.k8s.io/yaml v1.3.0/go.mod h1:GeOyir5tyXNByN85N/dRIT9es5UQNerPYEKK56eTBm8= +sigs.k8s.io/yaml v1.4.0 h1:Mk1wCc2gy/F0THH0TAp1QYyJNzRm2KCLy3o5ASXVI5E= +sigs.k8s.io/yaml v1.4.0/go.mod h1:Ejl7/uTz7PSA4eKMyQCUTnhZYNmLIl+5c2lQPGR2BPY= sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU= diff --git a/pkg/iter/sample_iterator_test.go b/pkg/iter/sample_iterator_test.go index 2f37d40c1c2a5..b42c6ff59cf21 100644 --- a/pkg/iter/sample_iterator_test.go +++ b/pkg/iter/sample_iterator_test.go @@ -8,7 +8,7 @@ import ( "testing" "time" - "github.com/cespare/xxhash" + "github.com/cespare/xxhash/v2" "github.com/pkg/errors" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" diff --git a/pkg/storage/stores/shipper/indexshipper/tsdb/head_manager.go b/pkg/storage/stores/shipper/indexshipper/tsdb/head_manager.go index 5df88b04071e5..989982f268857 100644 --- a/pkg/storage/stores/shipper/indexshipper/tsdb/head_manager.go +++ b/pkg/storage/stores/shipper/indexshipper/tsdb/head_manager.go @@ -11,7 +11,7 @@ import ( "sync" "time" - "github.com/cespare/xxhash" + "github.com/cespare/xxhash/v2" "github.com/go-kit/log" "github.com/go-kit/log/level" "github.com/pkg/errors" diff --git a/pkg/util/jumphash/memcached_client_selector.go b/pkg/util/jumphash/memcached_client_selector.go index 7eec90a3de706..ddf3a696f3838 100644 --- a/pkg/util/jumphash/memcached_client_selector.go +++ b/pkg/util/jumphash/memcached_client_selector.go @@ -5,7 +5,7 @@ import ( "strings" "sync" - "github.com/cespare/xxhash" + "github.com/cespare/xxhash/v2" "github.com/facette/natsort" "github.com/go-kit/log" "github.com/go-kit/log/level" diff --git a/vendor/github.com/cespare/xxhash/LICENSE.txt b/vendor/github.com/cespare/xxhash/LICENSE.txt deleted file mode 100644 index 24b53065f40b5..0000000000000 --- a/vendor/github.com/cespare/xxhash/LICENSE.txt +++ /dev/null @@ -1,22 +0,0 @@ -Copyright (c) 2016 Caleb Spare - -MIT License - -Permission is hereby granted, free of charge, to any person obtaining -a copy of this software and associated documentation files (the -"Software"), to deal in the Software without restriction, including -without limitation the rights to use, copy, modify, merge, publish, -distribute, sublicense, and/or sell copies of the Software, and to -permit persons to whom the Software is furnished to do so, subject to -the following conditions: - -The above copyright notice and this permission notice shall be -included in all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND -NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE -LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION -OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION -WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. diff --git a/vendor/github.com/cespare/xxhash/README.md b/vendor/github.com/cespare/xxhash/README.md deleted file mode 100644 index 0982fd25e5cd4..0000000000000 --- a/vendor/github.com/cespare/xxhash/README.md +++ /dev/null @@ -1,50 +0,0 @@ -# xxhash - -[![GoDoc](https://godoc.org/github.com/cespare/xxhash?status.svg)](https://godoc.org/github.com/cespare/xxhash) - -xxhash is a Go implementation of the 64-bit -[xxHash](http://cyan4973.github.io/xxHash/) algorithm, XXH64. This is a -high-quality hashing algorithm that is much faster than anything in the Go -standard library. - -The API is very small, taking its cue from the other hashing packages in the -standard library: - - $ go doc github.com/cespare/xxhash ! - package xxhash // import "github.com/cespare/xxhash" - - Package xxhash implements the 64-bit variant of xxHash (XXH64) as described - at http://cyan4973.github.io/xxHash/. - - func New() hash.Hash64 - func Sum64(b []byte) uint64 - func Sum64String(s string) uint64 - -This implementation provides a fast pure-Go implementation and an even faster -assembly implementation for amd64. - -## Benchmarks - -Here are some quick benchmarks comparing the pure-Go and assembly -implementations of Sum64 against another popular Go XXH64 implementation, -[github.com/OneOfOne/xxhash](https://github.com/OneOfOne/xxhash): - -| input size | OneOfOne | cespare (purego) | cespare | -| --- | --- | --- | --- | -| 5 B | 416 MB/s | 720 MB/s | 872 MB/s | -| 100 B | 3980 MB/s | 5013 MB/s | 5252 MB/s | -| 4 KB | 12727 MB/s | 12999 MB/s | 13026 MB/s | -| 10 MB | 9879 MB/s | 10775 MB/s | 10913 MB/s | - -These numbers were generated with: - -``` -$ go test -benchtime 10s -bench '/OneOfOne,' -$ go test -tags purego -benchtime 10s -bench '/xxhash,' -$ go test -benchtime 10s -bench '/xxhash,' -``` - -## Projects using this package - -- [InfluxDB](https://github.com/influxdata/influxdb) -- [Prometheus](https://github.com/prometheus/prometheus) diff --git a/vendor/github.com/cespare/xxhash/rotate.go b/vendor/github.com/cespare/xxhash/rotate.go deleted file mode 100644 index f3eac5ebc0280..0000000000000 --- a/vendor/github.com/cespare/xxhash/rotate.go +++ /dev/null @@ -1,14 +0,0 @@ -// +build !go1.9 - -package xxhash - -// TODO(caleb): After Go 1.10 comes out, remove this fallback code. - -func rol1(x uint64) uint64 { return (x << 1) | (x >> (64 - 1)) } -func rol7(x uint64) uint64 { return (x << 7) | (x >> (64 - 7)) } -func rol11(x uint64) uint64 { return (x << 11) | (x >> (64 - 11)) } -func rol12(x uint64) uint64 { return (x << 12) | (x >> (64 - 12)) } -func rol18(x uint64) uint64 { return (x << 18) | (x >> (64 - 18)) } -func rol23(x uint64) uint64 { return (x << 23) | (x >> (64 - 23)) } -func rol27(x uint64) uint64 { return (x << 27) | (x >> (64 - 27)) } -func rol31(x uint64) uint64 { return (x << 31) | (x >> (64 - 31)) } diff --git a/vendor/github.com/cespare/xxhash/rotate19.go b/vendor/github.com/cespare/xxhash/rotate19.go deleted file mode 100644 index b99612bab885d..0000000000000 --- a/vendor/github.com/cespare/xxhash/rotate19.go +++ /dev/null @@ -1,14 +0,0 @@ -// +build go1.9 - -package xxhash - -import "math/bits" - -func rol1(x uint64) uint64 { return bits.RotateLeft64(x, 1) } -func rol7(x uint64) uint64 { return bits.RotateLeft64(x, 7) } -func rol11(x uint64) uint64 { return bits.RotateLeft64(x, 11) } -func rol12(x uint64) uint64 { return bits.RotateLeft64(x, 12) } -func rol18(x uint64) uint64 { return bits.RotateLeft64(x, 18) } -func rol23(x uint64) uint64 { return bits.RotateLeft64(x, 23) } -func rol27(x uint64) uint64 { return bits.RotateLeft64(x, 27) } -func rol31(x uint64) uint64 { return bits.RotateLeft64(x, 31) } diff --git a/vendor/github.com/cespare/xxhash/xxhash.go b/vendor/github.com/cespare/xxhash/xxhash.go deleted file mode 100644 index f896bd28f058a..0000000000000 --- a/vendor/github.com/cespare/xxhash/xxhash.go +++ /dev/null @@ -1,168 +0,0 @@ -// Package xxhash implements the 64-bit variant of xxHash (XXH64) as described -// at http://cyan4973.github.io/xxHash/. -package xxhash - -import ( - "encoding/binary" - "hash" -) - -const ( - prime1 uint64 = 11400714785074694791 - prime2 uint64 = 14029467366897019727 - prime3 uint64 = 1609587929392839161 - prime4 uint64 = 9650029242287828579 - prime5 uint64 = 2870177450012600261 -) - -// NOTE(caleb): I'm using both consts and vars of the primes. Using consts where -// possible in the Go code is worth a small (but measurable) performance boost -// by avoiding some MOVQs. Vars are needed for the asm and also are useful for -// convenience in the Go code in a few places where we need to intentionally -// avoid constant arithmetic (e.g., v1 := prime1 + prime2 fails because the -// result overflows a uint64). -var ( - prime1v = prime1 - prime2v = prime2 - prime3v = prime3 - prime4v = prime4 - prime5v = prime5 -) - -type xxh struct { - v1 uint64 - v2 uint64 - v3 uint64 - v4 uint64 - total int - mem [32]byte - n int // how much of mem is used -} - -// New creates a new hash.Hash64 that implements the 64-bit xxHash algorithm. -func New() hash.Hash64 { - var x xxh - x.Reset() - return &x -} - -func (x *xxh) Reset() { - x.n = 0 - x.total = 0 - x.v1 = prime1v + prime2 - x.v2 = prime2 - x.v3 = 0 - x.v4 = -prime1v -} - -func (x *xxh) Size() int { return 8 } -func (x *xxh) BlockSize() int { return 32 } - -// Write adds more data to x. It always returns len(b), nil. -func (x *xxh) Write(b []byte) (n int, err error) { - n = len(b) - x.total += len(b) - - if x.n+len(b) < 32 { - // This new data doesn't even fill the current block. - copy(x.mem[x.n:], b) - x.n += len(b) - return - } - - if x.n > 0 { - // Finish off the partial block. - copy(x.mem[x.n:], b) - x.v1 = round(x.v1, u64(x.mem[0:8])) - x.v2 = round(x.v2, u64(x.mem[8:16])) - x.v3 = round(x.v3, u64(x.mem[16:24])) - x.v4 = round(x.v4, u64(x.mem[24:32])) - b = b[32-x.n:] - x.n = 0 - } - - if len(b) >= 32 { - // One or more full blocks left. - b = writeBlocks(x, b) - } - - // Store any remaining partial block. - copy(x.mem[:], b) - x.n = len(b) - - return -} - -func (x *xxh) Sum(b []byte) []byte { - s := x.Sum64() - return append( - b, - byte(s>>56), - byte(s>>48), - byte(s>>40), - byte(s>>32), - byte(s>>24), - byte(s>>16), - byte(s>>8), - byte(s), - ) -} - -func (x *xxh) Sum64() uint64 { - var h uint64 - - if x.total >= 32 { - v1, v2, v3, v4 := x.v1, x.v2, x.v3, x.v4 - h = rol1(v1) + rol7(v2) + rol12(v3) + rol18(v4) - h = mergeRound(h, v1) - h = mergeRound(h, v2) - h = mergeRound(h, v3) - h = mergeRound(h, v4) - } else { - h = x.v3 + prime5 - } - - h += uint64(x.total) - - i, end := 0, x.n - for ; i+8 <= end; i += 8 { - k1 := round(0, u64(x.mem[i:i+8])) - h ^= k1 - h = rol27(h)*prime1 + prime4 - } - if i+4 <= end { - h ^= uint64(u32(x.mem[i:i+4])) * prime1 - h = rol23(h)*prime2 + prime3 - i += 4 - } - for i < end { - h ^= uint64(x.mem[i]) * prime5 - h = rol11(h) * prime1 - i++ - } - - h ^= h >> 33 - h *= prime2 - h ^= h >> 29 - h *= prime3 - h ^= h >> 32 - - return h -} - -func u64(b []byte) uint64 { return binary.LittleEndian.Uint64(b) } -func u32(b []byte) uint32 { return binary.LittleEndian.Uint32(b) } - -func round(acc, input uint64) uint64 { - acc += input * prime2 - acc = rol31(acc) - acc *= prime1 - return acc -} - -func mergeRound(acc, val uint64) uint64 { - val = round(0, val) - acc ^= val - acc = acc*prime1 + prime4 - return acc -} diff --git a/vendor/github.com/cespare/xxhash/xxhash_amd64.go b/vendor/github.com/cespare/xxhash/xxhash_amd64.go deleted file mode 100644 index d6176526802c2..0000000000000 --- a/vendor/github.com/cespare/xxhash/xxhash_amd64.go +++ /dev/null @@ -1,12 +0,0 @@ -// +build !appengine -// +build gc -// +build !purego - -package xxhash - -// Sum64 computes the 64-bit xxHash digest of b. -// -//go:noescape -func Sum64(b []byte) uint64 - -func writeBlocks(x *xxh, b []byte) []byte diff --git a/vendor/github.com/cespare/xxhash/xxhash_amd64.s b/vendor/github.com/cespare/xxhash/xxhash_amd64.s deleted file mode 100644 index 757f2011f0f2c..0000000000000 --- a/vendor/github.com/cespare/xxhash/xxhash_amd64.s +++ /dev/null @@ -1,233 +0,0 @@ -// +build !appengine -// +build gc -// +build !purego - -#include "textflag.h" - -// Register allocation: -// AX h -// CX pointer to advance through b -// DX n -// BX loop end -// R8 v1, k1 -// R9 v2 -// R10 v3 -// R11 v4 -// R12 tmp -// R13 prime1v -// R14 prime2v -// R15 prime4v - -// round reads from and advances the buffer pointer in CX. -// It assumes that R13 has prime1v and R14 has prime2v. -#define round(r) \ - MOVQ (CX), R12 \ - ADDQ $8, CX \ - IMULQ R14, R12 \ - ADDQ R12, r \ - ROLQ $31, r \ - IMULQ R13, r - -// mergeRound applies a merge round on the two registers acc and val. -// It assumes that R13 has prime1v, R14 has prime2v, and R15 has prime4v. -#define mergeRound(acc, val) \ - IMULQ R14, val \ - ROLQ $31, val \ - IMULQ R13, val \ - XORQ val, acc \ - IMULQ R13, acc \ - ADDQ R15, acc - -// func Sum64(b []byte) uint64 -TEXT ·Sum64(SB), NOSPLIT, $0-32 - // Load fixed primes. - MOVQ ·prime1v(SB), R13 - MOVQ ·prime2v(SB), R14 - MOVQ ·prime4v(SB), R15 - - // Load slice. - MOVQ b_base+0(FP), CX - MOVQ b_len+8(FP), DX - LEAQ (CX)(DX*1), BX - - // The first loop limit will be len(b)-32. - SUBQ $32, BX - - // Check whether we have at least one block. - CMPQ DX, $32 - JLT noBlocks - - // Set up initial state (v1, v2, v3, v4). - MOVQ R13, R8 - ADDQ R14, R8 - MOVQ R14, R9 - XORQ R10, R10 - XORQ R11, R11 - SUBQ R13, R11 - - // Loop until CX > BX. -blockLoop: - round(R8) - round(R9) - round(R10) - round(R11) - - CMPQ CX, BX - JLE blockLoop - - MOVQ R8, AX - ROLQ $1, AX - MOVQ R9, R12 - ROLQ $7, R12 - ADDQ R12, AX - MOVQ R10, R12 - ROLQ $12, R12 - ADDQ R12, AX - MOVQ R11, R12 - ROLQ $18, R12 - ADDQ R12, AX - - mergeRound(AX, R8) - mergeRound(AX, R9) - mergeRound(AX, R10) - mergeRound(AX, R11) - - JMP afterBlocks - -noBlocks: - MOVQ ·prime5v(SB), AX - -afterBlocks: - ADDQ DX, AX - - // Right now BX has len(b)-32, and we want to loop until CX > len(b)-8. - ADDQ $24, BX - - CMPQ CX, BX - JG fourByte - -wordLoop: - // Calculate k1. - MOVQ (CX), R8 - ADDQ $8, CX - IMULQ R14, R8 - ROLQ $31, R8 - IMULQ R13, R8 - - XORQ R8, AX - ROLQ $27, AX - IMULQ R13, AX - ADDQ R15, AX - - CMPQ CX, BX - JLE wordLoop - -fourByte: - ADDQ $4, BX - CMPQ CX, BX - JG singles - - MOVL (CX), R8 - ADDQ $4, CX - IMULQ R13, R8 - XORQ R8, AX - - ROLQ $23, AX - IMULQ R14, AX - ADDQ ·prime3v(SB), AX - -singles: - ADDQ $4, BX - CMPQ CX, BX - JGE finalize - -singlesLoop: - MOVBQZX (CX), R12 - ADDQ $1, CX - IMULQ ·prime5v(SB), R12 - XORQ R12, AX - - ROLQ $11, AX - IMULQ R13, AX - - CMPQ CX, BX - JL singlesLoop - -finalize: - MOVQ AX, R12 - SHRQ $33, R12 - XORQ R12, AX - IMULQ R14, AX - MOVQ AX, R12 - SHRQ $29, R12 - XORQ R12, AX - IMULQ ·prime3v(SB), AX - MOVQ AX, R12 - SHRQ $32, R12 - XORQ R12, AX - - MOVQ AX, ret+24(FP) - RET - -// writeBlocks uses the same registers as above except that it uses AX to store -// the x pointer. - -// func writeBlocks(x *xxh, b []byte) []byte -TEXT ·writeBlocks(SB), NOSPLIT, $0-56 - // Load fixed primes needed for round. - MOVQ ·prime1v(SB), R13 - MOVQ ·prime2v(SB), R14 - - // Load slice. - MOVQ b_base+8(FP), CX - MOVQ CX, ret_base+32(FP) // initialize return base pointer; see NOTE below - MOVQ b_len+16(FP), DX - LEAQ (CX)(DX*1), BX - SUBQ $32, BX - - // Load vN from x. - MOVQ x+0(FP), AX - MOVQ 0(AX), R8 // v1 - MOVQ 8(AX), R9 // v2 - MOVQ 16(AX), R10 // v3 - MOVQ 24(AX), R11 // v4 - - // We don't need to check the loop condition here; this function is - // always called with at least one block of data to process. -blockLoop: - round(R8) - round(R9) - round(R10) - round(R11) - - CMPQ CX, BX - JLE blockLoop - - // Copy vN back to x. - MOVQ R8, 0(AX) - MOVQ R9, 8(AX) - MOVQ R10, 16(AX) - MOVQ R11, 24(AX) - - // Construct return slice. - // NOTE: It's important that we don't construct a slice that has a base - // pointer off the end of the original slice, as in Go 1.7+ this will - // cause runtime crashes. (See discussion in, for example, - // https://github.com/golang/go/issues/16772.) - // Therefore, we calculate the length/cap first, and if they're zero, we - // keep the old base. This is what the compiler does as well if you - // write code like - // b = b[len(b):] - - // New length is 32 - (CX - BX) -> BX+32 - CX. - ADDQ $32, BX - SUBQ CX, BX - JZ afterSetBase - - MOVQ CX, ret_base+32(FP) - -afterSetBase: - MOVQ BX, ret_len+40(FP) - MOVQ BX, ret_cap+48(FP) // set cap == len - - RET diff --git a/vendor/github.com/cespare/xxhash/xxhash_other.go b/vendor/github.com/cespare/xxhash/xxhash_other.go deleted file mode 100644 index c68d13f89e92e..0000000000000 --- a/vendor/github.com/cespare/xxhash/xxhash_other.go +++ /dev/null @@ -1,75 +0,0 @@ -// +build !amd64 appengine !gc purego - -package xxhash - -// Sum64 computes the 64-bit xxHash digest of b. -func Sum64(b []byte) uint64 { - // A simpler version would be - // x := New() - // x.Write(b) - // return x.Sum64() - // but this is faster, particularly for small inputs. - - n := len(b) - var h uint64 - - if n >= 32 { - v1 := prime1v + prime2 - v2 := prime2 - v3 := uint64(0) - v4 := -prime1v - for len(b) >= 32 { - v1 = round(v1, u64(b[0:8:len(b)])) - v2 = round(v2, u64(b[8:16:len(b)])) - v3 = round(v3, u64(b[16:24:len(b)])) - v4 = round(v4, u64(b[24:32:len(b)])) - b = b[32:len(b):len(b)] - } - h = rol1(v1) + rol7(v2) + rol12(v3) + rol18(v4) - h = mergeRound(h, v1) - h = mergeRound(h, v2) - h = mergeRound(h, v3) - h = mergeRound(h, v4) - } else { - h = prime5 - } - - h += uint64(n) - - i, end := 0, len(b) - for ; i+8 <= end; i += 8 { - k1 := round(0, u64(b[i:i+8:len(b)])) - h ^= k1 - h = rol27(h)*prime1 + prime4 - } - if i+4 <= end { - h ^= uint64(u32(b[i:i+4:len(b)])) * prime1 - h = rol23(h)*prime2 + prime3 - i += 4 - } - for ; i < end; i++ { - h ^= uint64(b[i]) * prime5 - h = rol11(h) * prime1 - } - - h ^= h >> 33 - h *= prime2 - h ^= h >> 29 - h *= prime3 - h ^= h >> 32 - - return h -} - -func writeBlocks(x *xxh, b []byte) []byte { - v1, v2, v3, v4 := x.v1, x.v2, x.v3, x.v4 - for len(b) >= 32 { - v1 = round(v1, u64(b[0:8:len(b)])) - v2 = round(v2, u64(b[8:16:len(b)])) - v3 = round(v3, u64(b[16:24:len(b)])) - v4 = round(v4, u64(b[24:32:len(b)])) - b = b[32:len(b):len(b)] - } - x.v1, x.v2, x.v3, x.v4 = v1, v2, v3, v4 - return b -} diff --git a/vendor/github.com/cespare/xxhash/xxhash_safe.go b/vendor/github.com/cespare/xxhash/xxhash_safe.go deleted file mode 100644 index dfa15ab7e27e2..0000000000000 --- a/vendor/github.com/cespare/xxhash/xxhash_safe.go +++ /dev/null @@ -1,10 +0,0 @@ -// +build appengine - -// This file contains the safe implementations of otherwise unsafe-using code. - -package xxhash - -// Sum64String computes the 64-bit xxHash digest of s. -func Sum64String(s string) uint64 { - return Sum64([]byte(s)) -} diff --git a/vendor/github.com/cespare/xxhash/xxhash_unsafe.go b/vendor/github.com/cespare/xxhash/xxhash_unsafe.go deleted file mode 100644 index d2b64e8bb00fe..0000000000000 --- a/vendor/github.com/cespare/xxhash/xxhash_unsafe.go +++ /dev/null @@ -1,30 +0,0 @@ -// +build !appengine - -// This file encapsulates usage of unsafe. -// xxhash_safe.go contains the safe implementations. - -package xxhash - -import ( - "reflect" - "unsafe" -) - -// Sum64String computes the 64-bit xxHash digest of s. -// It may be faster than Sum64([]byte(s)) by avoiding a copy. -// -// TODO(caleb): Consider removing this if an optimization is ever added to make -// it unnecessary: https://golang.org/issue/2205. -// -// TODO(caleb): We still have a function call; we could instead write Go/asm -// copies of Sum64 for strings to squeeze out a bit more speed. -func Sum64String(s string) uint64 { - // See https://groups.google.com/d/msg/golang-nuts/dcjzJy-bSpw/tcZYBzQqAQAJ - // for some discussion about this unsafe conversion. - var b []byte - bh := (*reflect.SliceHeader)(unsafe.Pointer(&b)) - bh.Data = (*reflect.StringHeader)(unsafe.Pointer(&s)).Data - bh.Len = len(s) - bh.Cap = len(s) - return Sum64(b) -} diff --git a/vendor/github.com/fxamacker/cbor/v2/.gitignore b/vendor/github.com/fxamacker/cbor/v2/.gitignore new file mode 100644 index 0000000000000..f1c181ec9c5c9 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/.gitignore @@ -0,0 +1,12 @@ +# Binaries for programs and plugins +*.exe +*.exe~ +*.dll +*.so +*.dylib + +# Test binary, build with `go test -c` +*.test + +# Output of the go coverage tool, specifically when used with LiteIDE +*.out diff --git a/vendor/github.com/fxamacker/cbor/v2/.golangci.yml b/vendor/github.com/fxamacker/cbor/v2/.golangci.yml new file mode 100644 index 0000000000000..38cb9ae101b85 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/.golangci.yml @@ -0,0 +1,104 @@ +# Do not delete linter settings. Linters like gocritic can be enabled on the command line. + +linters-settings: + depguard: + rules: + prevent_unmaintained_packages: + list-mode: strict + files: + - $all + - "!$test" + allow: + - $gostd + - github.com/x448/float16 + deny: + - pkg: io/ioutil + desc: "replaced by io and os packages since Go 1.16: https://tip.golang.org/doc/go1.16#ioutil" + dupl: + threshold: 100 + funlen: + lines: 100 + statements: 50 + goconst: + ignore-tests: true + min-len: 2 + min-occurrences: 3 + gocritic: + enabled-tags: + - diagnostic + - experimental + - opinionated + - performance + - style + disabled-checks: + - commentedOutCode + - dupImport # https://github.com/go-critic/go-critic/issues/845 + - ifElseChain + - octalLiteral + - paramTypeCombine + - whyNoLint + gofmt: + simplify: false + goimports: + local-prefixes: github.com/fxamacker/cbor + golint: + min-confidence: 0 + govet: + check-shadowing: true + lll: + line-length: 140 + maligned: + suggest-new: true + misspell: + locale: US + staticcheck: + checks: ["all"] + +linters: + disable-all: true + enable: + - asciicheck + - bidichk + - depguard + - errcheck + - exportloopref + - goconst + - gocritic + - gocyclo + - gofmt + - goimports + - goprintffuncname + - gosec + - gosimple + - govet + - ineffassign + - misspell + - nilerr + - revive + - staticcheck + - stylecheck + - typecheck + - unconvert + - unused + +issues: + # max-issues-per-linter default is 50. Set to 0 to disable limit. + max-issues-per-linter: 0 + # max-same-issues default is 3. Set to 0 to disable limit. + max-same-issues: 0 + + exclude-rules: + - path: decode.go + text: "string ` overflows ` has (\\d+) occurrences, make it a constant" + - path: decode.go + text: "string ` \\(range is \\[` has (\\d+) occurrences, make it a constant" + - path: decode.go + text: "string `, ` has (\\d+) occurrences, make it a constant" + - path: decode.go + text: "string ` overflows Go's int64` has (\\d+) occurrences, make it a constant" + - path: decode.go + text: "string `\\]\\)` has (\\d+) occurrences, make it a constant" + - path: valid.go + text: "string ` for type ` has (\\d+) occurrences, make it a constant" + - path: valid.go + text: "string `cbor: ` has (\\d+) occurrences, make it a constant" diff --git a/vendor/github.com/fxamacker/cbor/v2/CODE_OF_CONDUCT.md b/vendor/github.com/fxamacker/cbor/v2/CODE_OF_CONDUCT.md new file mode 100644 index 0000000000000..c794b2b0c666d --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/CODE_OF_CONDUCT.md @@ -0,0 +1,133 @@ + +# Contributor Covenant Code of Conduct + +## Our Pledge + +We as members, contributors, and leaders pledge to make participation in our +community a harassment-free experience for everyone, regardless of age, body +size, visible or invisible disability, ethnicity, sex characteristics, gender +identity and expression, level of experience, education, socio-economic status, +nationality, personal appearance, race, caste, color, religion, or sexual +identity and orientation. + +We pledge to act and interact in ways that contribute to an open, welcoming, +diverse, inclusive, and healthy community. + +## Our Standards + +Examples of behavior that contributes to a positive environment for our +community include: + +* Demonstrating empathy and kindness toward other people +* Being respectful of differing opinions, viewpoints, and experiences +* Giving and gracefully accepting constructive feedback +* Accepting responsibility and apologizing to those affected by our mistakes, + and learning from the experience +* Focusing on what is best not just for us as individuals, but for the overall + community + +Examples of unacceptable behavior include: + +* The use of sexualized language or imagery, and sexual attention or advances of + any kind +* Trolling, insulting or derogatory comments, and personal or political attacks +* Public or private harassment +* Publishing others' private information, such as a physical or email address, + without their explicit permission +* Other conduct which could reasonably be considered inappropriate in a + professional setting + +## Enforcement Responsibilities + +Community leaders are responsible for clarifying and enforcing our standards of +acceptable behavior and will take appropriate and fair corrective action in +response to any behavior that they deem inappropriate, threatening, offensive, +or harmful. + +Community leaders have the right and responsibility to remove, edit, or reject +comments, commits, code, wiki edits, issues, and other contributions that are +not aligned to this Code of Conduct, and will communicate reasons for moderation +decisions when appropriate. + +## Scope + +This Code of Conduct applies within all community spaces, and also applies when +an individual is officially representing the community in public spaces. +Examples of representing our community include using an official e-mail address, +posting via an official social media account, or acting as an appointed +representative at an online or offline event. + +## Enforcement + +Instances of abusive, harassing, or otherwise unacceptable behavior may be +reported to the community leaders responsible for enforcement at +faye.github@gmail.com. +All complaints will be reviewed and investigated promptly and fairly. + +All community leaders are obligated to respect the privacy and security of the +reporter of any incident. + +## Enforcement Guidelines + +Community leaders will follow these Community Impact Guidelines in determining +the consequences for any action they deem in violation of this Code of Conduct: + +### 1. Correction + +**Community Impact**: Use of inappropriate language or other behavior deemed +unprofessional or unwelcome in the community. + +**Consequence**: A private, written warning from community leaders, providing +clarity around the nature of the violation and an explanation of why the +behavior was inappropriate. A public apology may be requested. + +### 2. Warning + +**Community Impact**: A violation through a single incident or series of +actions. + +**Consequence**: A warning with consequences for continued behavior. No +interaction with the people involved, including unsolicited interaction with +those enforcing the Code of Conduct, for a specified period of time. This +includes avoiding interactions in community spaces as well as external channels +like social media. Violating these terms may lead to a temporary or permanent +ban. + +### 3. Temporary Ban + +**Community Impact**: A serious violation of community standards, including +sustained inappropriate behavior. + +**Consequence**: A temporary ban from any sort of interaction or public +communication with the community for a specified period of time. No public or +private interaction with the people involved, including unsolicited interaction +with those enforcing the Code of Conduct, is allowed during this period. +Violating these terms may lead to a permanent ban. + +### 4. Permanent Ban + +**Community Impact**: Demonstrating a pattern of violation of community +standards, including sustained inappropriate behavior, harassment of an +individual, or aggression toward or disparagement of classes of individuals. + +**Consequence**: A permanent ban from any sort of public interaction within the +community. + +## Attribution + +This Code of Conduct is adapted from the [Contributor Covenant][homepage], +version 2.1, available at +[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html][v2.1]. + +Community Impact Guidelines were inspired by +[Mozilla's code of conduct enforcement ladder][Mozilla CoC]. + +For answers to common questions about this code of conduct, see the FAQ at +[https://www.contributor-covenant.org/faq][FAQ]. Translations are available at +[https://www.contributor-covenant.org/translations][translations]. + +[homepage]: https://www.contributor-covenant.org +[v2.1]: https://www.contributor-covenant.org/version/2/1/code_of_conduct.html +[Mozilla CoC]: https://github.com/mozilla/diversity +[FAQ]: https://www.contributor-covenant.org/faq +[translations]: https://www.contributor-covenant.org/translations diff --git a/vendor/github.com/fxamacker/cbor/v2/CONTRIBUTING.md b/vendor/github.com/fxamacker/cbor/v2/CONTRIBUTING.md new file mode 100644 index 0000000000000..de0965e12d17a --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/CONTRIBUTING.md @@ -0,0 +1,41 @@ +# How to contribute + +You can contribute by using the library, opening issues, or opening pull requests. + +## Bug reports and security vulnerabilities + +Most issues are tracked publicly on [GitHub](https://github.com/fxamacker/cbor/issues). + +To report security vulnerabilities, please email faye.github@gmail.com and allow time for the problem to be resolved before disclosing it to the public. For more info, see [Security Policy](https://github.com/fxamacker/cbor#security-policy). + +Please do not send data that might contain personally identifiable information, even if you think you have permission. That type of support requires payment and a signed contract where I'm indemnified, held harmless, and defended by you for any data you send to me. + +## Pull requests + +Please [create an issue](https://github.com/fxamacker/cbor/issues/new/choose) before you begin work on a PR. The improvement may have already been considered, etc. + +Pull requests have signing requirements and must not be anonymous. Exceptions are usually made for docs and CI scripts. + +See the [Pull Request Template](https://github.com/fxamacker/cbor/blob/master/.github/pull_request_template.md) for details. + +Pull requests have a greater chance of being approved if: +- it does not reduce speed, increase memory use, reduce security, etc. for people not using the new option or feature. +- it has > 97% code coverage. + +## Describe your issue + +Clearly describe the issue: +* If it's a bug, please provide: **version of this library** and **Go** (`go version`), **unmodified error message**, and describe **how to reproduce it**. Also state **what you expected to happen** instead of the error. +* If you propose a change or addition, try to give an example how the improved code could look like or how to use it. +* If you found a compilation error, please confirm you're using a supported version of Go. If you are, then provide the output of `go version` first, followed by the complete error message. + +## Please don't + +Please don't send data containing personally identifiable information, even if you think you have permission. That type of support requires payment and a contract where I'm indemnified, held harmless, and defended for any data you send to me. + +Please don't send CBOR data larger than 1024 bytes by email. If you want to send crash-producing CBOR data > 1024 bytes by email, please get my permission before sending it to me. + +## Credits + +- This guide used nlohmann/json contribution guidelines for inspiration as suggested in issue #22. +- Special thanks to @lukseven for pointing out the contribution guidelines didn't mention signing requirements. diff --git a/vendor/github.com/fxamacker/cbor/v2/LICENSE b/vendor/github.com/fxamacker/cbor/v2/LICENSE new file mode 100644 index 0000000000000..eaa850492144a --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2019-present Faye Amacker + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. \ No newline at end of file diff --git a/vendor/github.com/fxamacker/cbor/v2/README.md b/vendor/github.com/fxamacker/cbor/v2/README.md new file mode 100644 index 0000000000000..af0a79507e599 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/README.md @@ -0,0 +1,691 @@ +# CBOR Codec in Go + + + +[fxamacker/cbor](https://github.com/fxamacker/cbor) is a library for encoding and decoding [CBOR](https://www.rfc-editor.org/info/std94) and [CBOR Sequences](https://www.rfc-editor.org/rfc/rfc8742.html). + +CBOR is a [trusted alternative](https://www.rfc-editor.org/rfc/rfc8949.html#name-comparison-of-other-binary-) to JSON, MessagePack, Protocol Buffers, etc.  CBOR is an Internet Standard defined by [IETF STD 94 (RFC 8949)](https://www.rfc-editor.org/info/std94) and is designed to be relevant for decades. + +`fxamacker/cbor` is used in projects by Arm Ltd., Cisco, EdgeX Foundry, Flow Foundation, Fraunhofer‑AISEC, Kubernetes, Let's Encrypt (ISRG), Linux Foundation, Microsoft, Mozilla, Oasis Protocol, Tailscale, Teleport, [etc](https://github.com/fxamacker/cbor#who-uses-fxamackercbor). + +See [Quick Start](#quick-start) and [Releases](https://github.com/fxamacker/cbor/releases/). 🆕 `UnmarshalFirst` and `DiagnoseFirst` can decode CBOR Sequences. `cbor.MarshalToBuffer()` and `UserBufferEncMode` accepts user-specified buffer. + +## fxamacker/cbor + +[![](https://github.com/fxamacker/cbor/workflows/ci/badge.svg)](https://github.com/fxamacker/cbor/actions?query=workflow%3Aci) +[![](https://github.com/fxamacker/cbor/workflows/cover%20%E2%89%A596%25/badge.svg)](https://github.com/fxamacker/cbor/actions?query=workflow%3A%22cover+%E2%89%A596%25%22) +[![CodeQL](https://github.com/fxamacker/cbor/actions/workflows/codeql-analysis.yml/badge.svg)](https://github.com/fxamacker/cbor/actions/workflows/codeql-analysis.yml) +[![](https://img.shields.io/badge/fuzzing-passing-44c010)](#fuzzing-and-code-coverage) +[![Go Report Card](https://goreportcard.com/badge/github.com/fxamacker/cbor)](https://goreportcard.com/report/github.com/fxamacker/cbor) + +`fxamacker/cbor` is a CBOR codec in full conformance with [IETF STD 94 (RFC 8949)](https://www.rfc-editor.org/info/std94). It also supports CBOR Sequences ([RFC 8742](https://www.rfc-editor.org/rfc/rfc8742.html)) and Extended Diagnostic Notation ([Appendix G of RFC 8610](https://www.rfc-editor.org/rfc/rfc8610.html#appendix-G)). + +Features include full support for CBOR tags, [Core Deterministic Encoding](https://www.rfc-editor.org/rfc/rfc8949.html#name-core-deterministic-encoding), duplicate map key detection, etc. + +Design balances trade-offs between security, speed, concurrency, encoded data size, usability, etc. + +
Highlights

+ +__🚀  Speed__ + +Encoding and decoding is fast without using Go's `unsafe` package. Slower settings are opt-in. Default limits allow very fast and memory efficient rejection of malformed CBOR data. + +__🔒  Security__ + +Decoder has configurable limits that defend against malicious inputs. Duplicate map key detection is supported. By contrast, `encoding/gob` is [not designed to be hardened against adversarial inputs](https://pkg.go.dev/encoding/gob#hdr-Security). + +Codec passed multiple confidential security assessments in 2022. No vulnerabilities found in subset of codec in a [nonconfidential security assessment](https://github.com/veraison/go-cose/blob/v1.0.0-rc.1/reports/NCC_Microsoft-go-cose-Report_2022-05-26_v1.0.pdf) prepared by NCC Group for Microsoft Corporation. + +__🗜️  Data Size__ + +Struct tags (`toarray`, `keyasint`, `omitempty`) automatically reduce size of encoded structs. Encoding optionally shrinks float64→32→16 when values fit. + +__:jigsaw:  Usability__ + +API is mostly same as `encoding/json` plus interfaces that simplify concurrency for CBOR options. Encoding and decoding modes can be created at startup and reused by any goroutines. + +Presets include Core Deterministic Encoding, Preferred Serialization, CTAP2 Canonical CBOR, etc. + +__📆  Extensibility__ + +Features include CBOR [extension points](https://www.rfc-editor.org/rfc/rfc8949.html#section-7.1) (e.g. CBOR tags) and extensive settings. API has interfaces that allow users to create custom encoding and decoding without modifying this library. + +

+ +
+ +### Secure Decoding with Configurable Settings + +`fxamacker/cbor` has configurable limits, etc. that defend against malicious CBOR data. + +By contrast, `encoding/gob` is [not designed to be hardened against adversarial inputs](https://pkg.go.dev/encoding/gob#hdr-Security). + +
Example decoding with encoding/gob 💥 fatal error (out of memory)

+ +```Go +// Example of encoding/gob having "fatal error: runtime: out of memory" +// while decoding 181 bytes. +package main +import ( + "bytes" + "encoding/gob" + "encoding/hex" + "fmt" +) + +// Example data is from https://github.com/golang/go/issues/24446 +// (shortened to 181 bytes). +const data = "4dffb503010102303001ff30000109010130010800010130010800010130" + + "01ffb80001014a01ffb60001014b01ff860001013001ff860001013001ff" + + "860001013001ff860001013001ffb80000001eff850401010e3030303030" + + "30303030303030303001ff3000010c0104000016ffb70201010830303030" + + "3030303001ff3000010c000030ffb6040405fcff00303030303030303030" + + "303030303030303030303030303030303030303030303030303030303030" + + "30" + +type X struct { + J *X + K map[string]int +} + +func main() { + raw, _ := hex.DecodeString(data) + decoder := gob.NewDecoder(bytes.NewReader(raw)) + + var x X + decoder.Decode(&x) // fatal error: runtime: out of memory + fmt.Println("Decoding finished.") +} +``` + +

+ +
+ +`fxamacker/cbor` is fast at rejecting malformed CBOR data. E.g. attempts to +decode 10 bytes of malicious CBOR data to `[]byte` (with default settings): + +| Codec | Speed (ns/op) | Memory | Allocs | +| :---- | ------------: | -----: | -----: | +| fxamacker/cbor 2.5.0 | 44 ± 5% | 32 B/op | 2 allocs/op | +| ugorji/go 1.2.11 | 5353261 ± 4% | 67111321 B/op | 13 allocs/op | + +
Benchmark details

+ +Latest comparison used: +- Input: `[]byte{0x9B, 0x00, 0x00, 0x42, 0xFA, 0x42, 0xFA, 0x42, 0xFA, 0x42}` +- go1.19.10, linux/amd64, i5-13600K (disabled all e-cores, DDR4 @2933) +- go test -bench=. -benchmem -count=20 + +#### Prior comparisons + +| Codec | Speed (ns/op) | Memory | Allocs | +| :---- | ------------: | -----: | -----: | +| fxamacker/cbor 2.5.0-beta2 | 44.33 ± 2% | 32 B/op | 2 allocs/op | +| fxamacker/cbor 0.1.0 - 2.4.0 | ~44.68 ± 6% | 32 B/op | 2 allocs/op | +| ugorji/go 1.2.10 | 5524792.50 ± 3% | 67110491 B/op | 12 allocs/op | +| ugorji/go 1.1.0 - 1.2.6 | 💥 runtime: | out of memory: | cannot allocate | + +- Input: `[]byte{0x9B, 0x00, 0x00, 0x42, 0xFA, 0x42, 0xFA, 0x42, 0xFA, 0x42}` +- go1.19.6, linux/amd64, i5-13600K (DDR4) +- go test -bench=. -benchmem -count=20 + +

+ +
+ +### Smaller Encodings with Struct Tags + +Struct tags (`toarray`, `keyasint`, `omitempty`) reduce encoded size of structs. + +
Example encoding 3-level nested Go struct to 1 byte CBOR

+ +https://go.dev/play/p/YxwvfPdFQG2 + +```Go +// Example encoding nested struct (with omitempty tag) +// - encoding/json: 18 byte JSON +// - fxamacker/cbor: 1 byte CBOR +package main + +import ( + "encoding/hex" + "encoding/json" + "fmt" + + "github.com/fxamacker/cbor/v2" +) + +type GrandChild struct { + Quux int `json:",omitempty"` +} + +type Child struct { + Baz int `json:",omitempty"` + Qux GrandChild `json:",omitempty"` +} + +type Parent struct { + Foo Child `json:",omitempty"` + Bar int `json:",omitempty"` +} + +func cb() { + results, _ := cbor.Marshal(Parent{}) + fmt.Println("hex(CBOR): " + hex.EncodeToString(results)) + + text, _ := cbor.Diagnose(results) // Diagnostic Notation + fmt.Println("DN: " + text) +} + +func js() { + results, _ := json.Marshal(Parent{}) + fmt.Println("hex(JSON): " + hex.EncodeToString(results)) + + text := string(results) // JSON + fmt.Println("JSON: " + text) +} + +func main() { + cb() + fmt.Println("-------------") + js() +} +``` + +Output (DN is Diagnostic Notation): +``` +hex(CBOR): a0 +DN: {} +------------- +hex(JSON): 7b22466f6f223a7b22517578223a7b7d7d7d +JSON: {"Foo":{"Qux":{}}} +``` + +

+ +
+ +Example using different struct tags together: + +![alt text](https://github.com/fxamacker/images/raw/master/cbor/v2.3.0/cbor_struct_tags_api.svg?sanitize=1 "CBOR API and Go Struct Tags") + +API is mostly same as `encoding/json`, plus interfaces that simplify concurrency for CBOR options. + +## Quick Start + +__Install__: `go get github.com/fxamacker/cbor/v2` and `import "github.com/fxamacker/cbor/v2"`. + +### Key Points + +This library can encode and decode CBOR (RFC 8949) and CBOR Sequences (RFC 8742). + +- __CBOR data item__ is a single piece of CBOR data and its structure may contain 0 or more nested data items. +- __CBOR sequence__ is a concatenation of 0 or more encoded CBOR data items. + +Configurable limits and options can be used to balance trade-offs. + +- Encoding and decoding modes are created from options (settings). +- Modes can be created at startup and reused. +- Modes are safe for concurrent use. + +### Default Mode + +Package level functions only use this library's default settings. +They provide the "default mode" of encoding and decoding. + +```go +// API matches encoding/json for Marshal, Unmarshal, Encode, Decode, etc. +b, err = cbor.Marshal(v) // encode v to []byte b +err = cbor.Unmarshal(b, &v) // decode []byte b to v +decoder = cbor.NewDecoder(r) // create decoder with io.Reader r +err = decoder.Decode(&v) // decode a CBOR data item to v + +// v2.7.0 added MarshalToBuffer() and UserBufferEncMode interface. +err = cbor.MarshalToBuffer(v, b) // encode v to b instead of using built-in buf pool. + +// v2.5.0 added new functions that return remaining bytes. + +// UnmarshalFirst decodes first CBOR data item and returns remaining bytes. +rest, err = cbor.UnmarshalFirst(b, &v) // decode []byte b to v + +// DiagnoseFirst translates first CBOR data item to text and returns remaining bytes. +text, rest, err = cbor.DiagnoseFirst(b) // decode []byte b to Diagnostic Notation text + +// NOTE: Unmarshal returns ExtraneousDataError if there are remaining bytes, +// but new funcs UnmarshalFirst and DiagnoseFirst do not. +``` + +__IMPORTANT__: 👉 CBOR settings allow trade-offs between speed, security, encoding size, etc. + +- Different CBOR libraries may use different default settings. +- CBOR-based formats or protocols usually require specific settings. + +For example, WebAuthn uses "CTAP2 Canonical CBOR" which is available as a preset. + +### Presets + +Presets can be used as-is or as a starting point for custom settings. + +```go +// EncOptions is a struct of encoder settings. +func CoreDetEncOptions() EncOptions // RFC 8949 Core Deterministic Encoding +func PreferredUnsortedEncOptions() EncOptions // RFC 8949 Preferred Serialization +func CanonicalEncOptions() EncOptions // RFC 7049 Canonical CBOR +func CTAP2EncOptions() EncOptions // FIDO2 CTAP2 Canonical CBOR +``` + +Presets are used to create custom modes. + +### Custom Modes + +Modes are created from settings. Once created, modes have immutable settings. + +💡 Create the mode at startup and reuse it. It is safe for concurrent use. + +```Go +// Create encoding mode. +opts := cbor.CoreDetEncOptions() // use preset options as a starting point +opts.Time = cbor.TimeUnix // change any settings if needed +em, err := opts.EncMode() // create an immutable encoding mode + +// Reuse the encoding mode. It is safe for concurrent use. + +// API matches encoding/json. +b, err := em.Marshal(v) // encode v to []byte b +encoder := em.NewEncoder(w) // create encoder with io.Writer w +err := encoder.Encode(v) // encode v to io.Writer w +``` + +Default mode and custom modes automatically apply struct tags. + +### User Specified Buffer for Encoding (v2.7.0) + +`UserBufferEncMode` interface extends `EncMode` interface to add `MarshalToBuffer()`. It accepts a user-specified buffer instead of using built-in buffer pool. + +```Go +em, err := myEncOptions.UserBufferEncMode() // create UserBufferEncMode mode + +var buf bytes.Buffer +err = em.MarshalToBuffer(v, &buf) // encode v to provided buf +``` + +### Struct Tags + +Struct tags (`toarray`, `keyasint`, `omitempty`) reduce encoded size of structs. + +
Example encoding 3-level nested Go struct to 1 byte CBOR

+ +https://go.dev/play/p/YxwvfPdFQG2 + +```Go +// Example encoding nested struct (with omitempty tag) +// - encoding/json: 18 byte JSON +// - fxamacker/cbor: 1 byte CBOR +package main + +import ( + "encoding/hex" + "encoding/json" + "fmt" + + "github.com/fxamacker/cbor/v2" +) + +type GrandChild struct { + Quux int `json:",omitempty"` +} + +type Child struct { + Baz int `json:",omitempty"` + Qux GrandChild `json:",omitempty"` +} + +type Parent struct { + Foo Child `json:",omitempty"` + Bar int `json:",omitempty"` +} + +func cb() { + results, _ := cbor.Marshal(Parent{}) + fmt.Println("hex(CBOR): " + hex.EncodeToString(results)) + + text, _ := cbor.Diagnose(results) // Diagnostic Notation + fmt.Println("DN: " + text) +} + +func js() { + results, _ := json.Marshal(Parent{}) + fmt.Println("hex(JSON): " + hex.EncodeToString(results)) + + text := string(results) // JSON + fmt.Println("JSON: " + text) +} + +func main() { + cb() + fmt.Println("-------------") + js() +} +``` + +Output (DN is Diagnostic Notation): +``` +hex(CBOR): a0 +DN: {} +------------- +hex(JSON): 7b22466f6f223a7b22517578223a7b7d7d7d +JSON: {"Foo":{"Qux":{}}} +``` + +

+ +
+ +
Example using several struct tags

+ +![alt text](https://github.com/fxamacker/images/raw/master/cbor/v2.3.0/cbor_struct_tags_api.svg?sanitize=1 "CBOR API and Go Struct Tags") + +

+ +Struct tags simplify use of CBOR-based protocols that require CBOR arrays or maps with integer keys. + +### CBOR Tags + +CBOR tags are specified in a `TagSet`. + +Custom modes can be created with a `TagSet` to handle CBOR tags. + +```go +em, err := opts.EncMode() // no CBOR tags +em, err := opts.EncModeWithTags(ts) // immutable CBOR tags +em, err := opts.EncModeWithSharedTags(ts) // mutable shared CBOR tags +``` + +`TagSet` and modes using it are safe for concurrent use. Equivalent API is available for `DecMode`. + +
Example using TagSet and TagOptions

+ +```go +// Use signedCWT struct defined in "Decoding CWT" example. + +// Create TagSet (safe for concurrency). +tags := cbor.NewTagSet() +// Register tag COSE_Sign1 18 with signedCWT type. +tags.Add( + cbor.TagOptions{EncTag: cbor.EncTagRequired, DecTag: cbor.DecTagRequired}, + reflect.TypeOf(signedCWT{}), + 18) + +// Create DecMode with immutable tags. +dm, _ := cbor.DecOptions{}.DecModeWithTags(tags) + +// Unmarshal to signedCWT with tag support. +var v signedCWT +if err := dm.Unmarshal(data, &v); err != nil { + return err +} + +// Create EncMode with immutable tags. +em, _ := cbor.EncOptions{}.EncModeWithTags(tags) + +// Marshal signedCWT with tag number. +if data, err := cbor.Marshal(v); err != nil { + return err +} +``` + +

+ +### Functions and Interfaces + +
Functions and interfaces at a glance

+ +Common functions with same API as `encoding/json`: +- `Marshal`, `Unmarshal` +- `NewEncoder`, `(*Encoder).Encode` +- `NewDecoder`, `(*Decoder).Decode` + +NOTE: `Unmarshal` will return `ExtraneousDataError` if there are remaining bytes +because RFC 8949 treats CBOR data item with remaining bytes as malformed. +- 💡 Use `UnmarshalFirst` to decode first CBOR data item and return any remaining bytes. + +Other useful functions: +- `Diagnose`, `DiagnoseFirst` produce human-readable [Extended Diagnostic Notation](https://www.rfc-editor.org/rfc/rfc8610.html#appendix-G) from CBOR data. +- `UnmarshalFirst` decodes first CBOR data item and return any remaining bytes. +- `Wellformed` returns true if the the CBOR data item is well-formed. + +Interfaces identical or comparable to Go `encoding` packages include: +`Marshaler`, `Unmarshaler`, `BinaryMarshaler`, and `BinaryUnmarshaler`. + +The `RawMessage` type can be used to delay CBOR decoding or precompute CBOR encoding. + +

+ +### Security Tips + +🔒 Use Go's `io.LimitReader` to limit size when decoding very large or indefinite size data. + +Default limits may need to be increased for systems handling very large data (e.g. blockchains). + +`DecOptions` can be used to modify default limits for `MaxArrayElements`, `MaxMapPairs`, and `MaxNestedLevels`. + +## Status + +v2.7.0 (June 23, 2024) adds features and improvements that help large projects (e.g. Kubernetes) use CBOR as an alternative to JSON and Protocol Buffers. Other improvements include speedups, improved memory use, bug fixes, new serialization options, etc. It passed fuzz tests (5+ billion executions) and is production quality. + +For more details, see [release notes](https://github.com/fxamacker/cbor/releases). + +### Prior Release + +[v2.6.0](https://github.com/fxamacker/cbor/releases/tag/v2.6.0) (February 2024) adds important new features, optimizations, and bug fixes. It is especially useful to systems that need to convert data between CBOR and JSON. New options and optimizations improve handling of bignum, integers, maps, and strings. + +v2.5.0 was released on Sunday, August 13, 2023 with new features and important bug fixes. It is fuzz tested and production quality after extended beta [v2.5.0-beta](https://github.com/fxamacker/cbor/releases/tag/v2.5.0-beta) (Dec 2022) -> [v2.5.0](https://github.com/fxamacker/cbor/releases/tag/v2.5.0) (Aug 2023). + +__IMPORTANT__: 👉 Before upgrading from v2.4 or older release, please read the notable changes highlighted in the release notes. v2.5.0 is a large release with bug fixes to error handling for extraneous data in `Unmarshal`, etc. that should be reviewed before upgrading. + +See [v2.5.0 release notes](https://github.com/fxamacker/cbor/releases/tag/v2.5.0) for list of new features, improvements, and bug fixes. + +See ["Version and API Changes"](https://github.com/fxamacker/cbor#versions-and-api-changes) section for more info about version numbering, etc. + + + +## Who uses fxamacker/cbor + +`fxamacker/cbor` is used in projects by Arm Ltd., Berlin Institute of Health at Charité, Chainlink, Cisco, Confidential Computing Consortium, ConsenSys, Dapper Labs, EdgeX Foundry, F5, FIDO Alliance, Fraunhofer‑AISEC, Kubernetes, Let's Encrypt (ISRG), Linux Foundation, Matrix.org, Microsoft, Mozilla, National Cybersecurity Agency of France (govt), Netherlands (govt), Oasis Protocol, Smallstep, Tailscale, Taurus SA, Teleport, TIBCO, and others. + +`fxamacker/cbor` passed multiple confidential security assessments. A [nonconfidential security assessment](https://github.com/veraison/go-cose/blob/v1.0.0-rc.1/reports/NCC_Microsoft-go-cose-Report_2022-05-26_v1.0.pdf) (prepared by NCC Group for Microsoft Corporation) includes a subset of fxamacker/cbor v2.4.0 in its scope. + +## Standards + +`fxamacker/cbor` is a CBOR codec in full conformance with [IETF STD 94 (RFC 8949)](https://www.rfc-editor.org/info/std94). It also supports CBOR Sequences ([RFC 8742](https://www.rfc-editor.org/rfc/rfc8742.html)) and Extended Diagnostic Notation ([Appendix G of RFC 8610](https://www.rfc-editor.org/rfc/rfc8610.html#appendix-G)). + +Notable CBOR features include: + +| CBOR Feature | Description | +| :--- | :--- | +| CBOR tags | API supports built-in and user-defined tags. | +| Preferred serialization | Integers encode to fewest bytes. Optional float64 → float32 → float16. | +| Map key sorting | Unsorted, length-first (Canonical CBOR), and bytewise-lexicographic (CTAP2). | +| Duplicate map keys | Always forbid for encoding and option to allow/forbid for decoding. | +| Indefinite length data | Option to allow/forbid for encoding and decoding. | +| Well-formedness | Always checked and enforced. | +| Basic validity checks | Optionally check UTF-8 validity and duplicate map keys. | +| Security considerations | Prevent integer overflow and resource exhaustion (RFC 8949 Section 10). | + +Known limitations are noted in the [Limitations section](#limitations). + +Go nil values for slices, maps, pointers, etc. are encoded as CBOR null. Empty slices, maps, etc. are encoded as empty CBOR arrays and maps. + +Decoder checks for all required well-formedness errors, including all "subkinds" of syntax errors and too little data. + +After well-formedness is verified, basic validity errors are handled as follows: + +* Invalid UTF-8 string: Decoder has option to check and return invalid UTF-8 string error. This check is enabled by default. +* Duplicate keys in a map: Decoder has options to ignore or enforce rejection of duplicate map keys. + +When decoding well-formed CBOR arrays and maps, decoder saves the first error it encounters and continues with the next item. Options to handle this differently may be added in the future. + +By default, decoder treats time values of floating-point NaN and Infinity as if they are CBOR Null or CBOR Undefined. + +__Click to expand topic:__ + +
+ Duplicate Map Keys

+ +This library provides options for fast detection and rejection of duplicate map keys based on applying a Go-specific data model to CBOR's extended generic data model in order to determine duplicate vs distinct map keys. Detection relies on whether the CBOR map key would be a duplicate "key" when decoded and applied to the user-provided Go map or struct. + +`DupMapKeyQuiet` turns off detection of duplicate map keys. It tries to use a "keep fastest" method by choosing either "keep first" or "keep last" depending on the Go data type. + +`DupMapKeyEnforcedAPF` enforces detection and rejection of duplidate map keys. Decoding stops immediately and returns `DupMapKeyError` when the first duplicate key is detected. The error includes the duplicate map key and the index number. + +APF suffix means "Allow Partial Fill" so the destination map or struct can contain some decoded values at the time of error. It is the caller's responsibility to respond to the `DupMapKeyError` by discarding the partially filled result if that's required by their protocol. + +

+ +
+ Tag Validity

+ +This library checks tag validity for built-in tags (currently tag numbers 0, 1, 2, 3, and 55799): + +* Inadmissible type for tag content +* Inadmissible value for tag content + +Unknown tag data items (not tag number 0, 1, 2, 3, or 55799) are handled in two ways: + +* When decoding into an empty interface, unknown tag data item will be decoded into `cbor.Tag` data type, which contains tag number and tag content. The tag content will be decoded into the default Go data type for the CBOR data type. +* When decoding into other Go types, unknown tag data item is decoded into the specified Go type. If Go type is registered with a tag number, the tag number can optionally be verified. + +Decoder also has an option to forbid tag data items (treat any tag data item as error) which is specified by protocols such as CTAP2 Canonical CBOR. + +For more information, see [decoding options](#decoding-options-1) and [tag options](#tag-options). + +

+ +## Limitations + +If any of these limitations prevent you from using this library, please open an issue along with a link to your project. + +* CBOR `Undefined` (0xf7) value decodes to Go's `nil` value. CBOR `Null` (0xf6) more closely matches Go's `nil`. +* CBOR map keys with data types not supported by Go for map keys are ignored and an error is returned after continuing to decode remaining items. +* When decoding registered CBOR tag data to interface type, decoder creates a pointer to registered Go type matching CBOR tag number. Requiring a pointer for this is a Go limitation. + +## Fuzzing and Code Coverage + +__Code coverage__ is always 95% or higher (with `go test -cover`) when tagging a release. + +__Coverage-guided fuzzing__ must pass billions of execs using before tagging a release. Fuzzing is done using nonpublic code which may eventually get merged into this project. Until then, reports like OpenSSF Scorecard can't detect fuzz tests being used by this project. + +
+ +## Versions and API Changes +This project uses [Semantic Versioning](https://semver.org), so the API is always backwards compatible unless the major version number changes. + +These functions have signatures identical to encoding/json and their API will continue to match `encoding/json` even after major new releases: +`Marshal`, `Unmarshal`, `NewEncoder`, `NewDecoder`, `(*Encoder).Encode`, and `(*Decoder).Decode`. + +Exclusions from SemVer: +- Newly added API documented as "subject to change". +- Newly added API in the master branch that has never been tagged in non-beta release. +- If function parameters are unchanged, bug fixes that change behavior (e.g. return error for edge case was missed in prior version). We try to highlight these in the release notes and add extended beta period. E.g. [v2.5.0-beta](https://github.com/fxamacker/cbor/releases/tag/v2.5.0-beta) (Dec 2022) -> [v2.5.0](https://github.com/fxamacker/cbor/releases/tag/v2.5.0) (Aug 2023). + +This project avoids breaking changes to behavior of encoding and decoding functions unless required to improve conformance with supported RFCs (e.g. RFC 8949, RFC 8742, etc.) Visible changes that don't improve conformance to standards are typically made available as new opt-in settings or new functions. + +## Code of Conduct + +This project has adopted the [Contributor Covenant Code of Conduct](CODE_OF_CONDUCT.md). Contact [faye.github@gmail.com](mailto:faye.github@gmail.com) with any questions or comments. + +## Contributing + +Please open an issue before beginning work on a PR. The improvement may have already been considered, etc. + +For more info, see [How to Contribute](CONTRIBUTING.md). + +## Security Policy + +Security fixes are provided for the latest released version of fxamacker/cbor. + +For the full text of the Security Policy, see [SECURITY.md](SECURITY.md). + +## Acknowledgements + +Many thanks to all the contributors on this project! + +I'm especially grateful to Bastian Müller and Dieter Shirley for suggesting and collaborating on CBOR stream mode, and much more. + +I'm very grateful to Stefan Tatschner, Yawning Angel, Jernej Kos, x448, ZenGround0, and Jakob Borg for their contributions or support in the very early days. + +Big thanks to Ben Luddy for his contributions in v2.6.0 and v2.7.0. + +This library clearly wouldn't be possible without Carsten Bormann authoring CBOR RFCs. + +Special thanks to Laurence Lundblade and Jeffrey Yasskin for their help on IETF mailing list or at [7049bis](https://github.com/cbor-wg/CBORbis). + +Huge thanks to The Go Authors for creating a fun and practical programming language with batteries included! + +This library uses `x448/float16` which used to be included. As a standalone package, `x448/float16` is useful to other projects as well. + +## License + +Copyright © 2019-2024 [Faye Amacker](https://github.com/fxamacker). + +fxamacker/cbor is licensed under the MIT License. See [LICENSE](LICENSE) for the full license text. + +
diff --git a/vendor/github.com/fxamacker/cbor/v2/SECURITY.md b/vendor/github.com/fxamacker/cbor/v2/SECURITY.md new file mode 100644 index 0000000000000..9c05146d16cf1 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/SECURITY.md @@ -0,0 +1,7 @@ +# Security Policy + +Security fixes are provided for the latest released version of fxamacker/cbor. + +If the security vulnerability is already known to the public, then you can open an issue as a bug report. + +To report security vulnerabilities not yet known to the public, please email faye.github@gmail.com and allow time for the problem to be resolved before reporting it to the public. diff --git a/vendor/github.com/fxamacker/cbor/v2/bytestring.go b/vendor/github.com/fxamacker/cbor/v2/bytestring.go new file mode 100644 index 0000000000000..823bff12ce14f --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/bytestring.go @@ -0,0 +1,63 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "errors" +) + +// ByteString represents CBOR byte string (major type 2). ByteString can be used +// when using a Go []byte is not possible or convenient. For example, Go doesn't +// allow []byte as map key, so ByteString can be used to support data formats +// having CBOR map with byte string keys. ByteString can also be used to +// encode invalid UTF-8 string as CBOR byte string. +// See DecOption.MapKeyByteStringMode for more details. +type ByteString string + +// Bytes returns bytes representing ByteString. +func (bs ByteString) Bytes() []byte { + return []byte(bs) +} + +// MarshalCBOR encodes ByteString as CBOR byte string (major type 2). +func (bs ByteString) MarshalCBOR() ([]byte, error) { + e := getEncodeBuffer() + defer putEncodeBuffer(e) + + // Encode length + encodeHead(e, byte(cborTypeByteString), uint64(len(bs))) + + // Encode data + buf := make([]byte, e.Len()+len(bs)) + n := copy(buf, e.Bytes()) + copy(buf[n:], bs) + + return buf, nil +} + +// UnmarshalCBOR decodes CBOR byte string (major type 2) to ByteString. +// Decoding CBOR null and CBOR undefined sets ByteString to be empty. +func (bs *ByteString) UnmarshalCBOR(data []byte) error { + if bs == nil { + return errors.New("cbor.ByteString: UnmarshalCBOR on nil pointer") + } + + // Decoding CBOR null and CBOR undefined to ByteString resets data. + // This behavior is similar to decoding CBOR null and CBOR undefined to []byte. + if len(data) == 1 && (data[0] == 0xf6 || data[0] == 0xf7) { + *bs = "" + return nil + } + + d := decoder{data: data, dm: defaultDecMode} + + // Check if CBOR data type is byte string + if typ := d.nextCBORType(); typ != cborTypeByteString { + return &UnmarshalTypeError{CBORType: typ.String(), GoType: typeByteString.String()} + } + + b, _ := d.parseByteString() + *bs = ByteString(b) + return nil +} diff --git a/vendor/github.com/fxamacker/cbor/v2/cache.go b/vendor/github.com/fxamacker/cbor/v2/cache.go new file mode 100644 index 0000000000000..ea0f39e24f0da --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/cache.go @@ -0,0 +1,363 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "bytes" + "errors" + "fmt" + "reflect" + "sort" + "strconv" + "strings" + "sync" +) + +type encodeFuncs struct { + ef encodeFunc + ief isEmptyFunc +} + +var ( + decodingStructTypeCache sync.Map // map[reflect.Type]*decodingStructType + encodingStructTypeCache sync.Map // map[reflect.Type]*encodingStructType + encodeFuncCache sync.Map // map[reflect.Type]encodeFuncs + typeInfoCache sync.Map // map[reflect.Type]*typeInfo +) + +type specialType int + +const ( + specialTypeNone specialType = iota + specialTypeUnmarshalerIface + specialTypeEmptyIface + specialTypeIface + specialTypeTag + specialTypeTime +) + +type typeInfo struct { + elemTypeInfo *typeInfo + keyTypeInfo *typeInfo + typ reflect.Type + kind reflect.Kind + nonPtrType reflect.Type + nonPtrKind reflect.Kind + spclType specialType +} + +func newTypeInfo(t reflect.Type) *typeInfo { + tInfo := typeInfo{typ: t, kind: t.Kind()} + + for t.Kind() == reflect.Ptr { + t = t.Elem() + } + + k := t.Kind() + + tInfo.nonPtrType = t + tInfo.nonPtrKind = k + + if k == reflect.Interface { + if t.NumMethod() == 0 { + tInfo.spclType = specialTypeEmptyIface + } else { + tInfo.spclType = specialTypeIface + } + } else if t == typeTag { + tInfo.spclType = specialTypeTag + } else if t == typeTime { + tInfo.spclType = specialTypeTime + } else if reflect.PtrTo(t).Implements(typeUnmarshaler) { + tInfo.spclType = specialTypeUnmarshalerIface + } + + switch k { + case reflect.Array, reflect.Slice: + tInfo.elemTypeInfo = getTypeInfo(t.Elem()) + case reflect.Map: + tInfo.keyTypeInfo = getTypeInfo(t.Key()) + tInfo.elemTypeInfo = getTypeInfo(t.Elem()) + } + + return &tInfo +} + +type decodingStructType struct { + fields fields + fieldIndicesByName map[string]int + err error + toArray bool +} + +// The stdlib errors.Join was introduced in Go 1.20, and we still support Go 1.17, so instead, +// here's a very basic implementation of an aggregated error. +type multierror []error + +func (m multierror) Error() string { + var sb strings.Builder + for i, err := range m { + sb.WriteString(err.Error()) + if i < len(m)-1 { + sb.WriteString(", ") + } + } + return sb.String() +} + +func getDecodingStructType(t reflect.Type) *decodingStructType { + if v, _ := decodingStructTypeCache.Load(t); v != nil { + return v.(*decodingStructType) + } + + flds, structOptions := getFields(t) + + toArray := hasToArrayOption(structOptions) + + var errs []error + for i := 0; i < len(flds); i++ { + if flds[i].keyAsInt { + nameAsInt, numErr := strconv.Atoi(flds[i].name) + if numErr != nil { + errs = append(errs, errors.New("cbor: failed to parse field name \""+flds[i].name+"\" to int ("+numErr.Error()+")")) + break + } + flds[i].nameAsInt = int64(nameAsInt) + } + + flds[i].typInfo = getTypeInfo(flds[i].typ) + } + + fieldIndicesByName := make(map[string]int, len(flds)) + for i, fld := range flds { + if _, ok := fieldIndicesByName[fld.name]; ok { + errs = append(errs, fmt.Errorf("cbor: two or more fields of %v have the same name %q", t, fld.name)) + continue + } + fieldIndicesByName[fld.name] = i + } + + var err error + { + var multi multierror + for _, each := range errs { + if each != nil { + multi = append(multi, each) + } + } + if len(multi) == 1 { + err = multi[0] + } else if len(multi) > 1 { + err = multi + } + } + + structType := &decodingStructType{ + fields: flds, + fieldIndicesByName: fieldIndicesByName, + err: err, + toArray: toArray, + } + decodingStructTypeCache.Store(t, structType) + return structType +} + +type encodingStructType struct { + fields fields + bytewiseFields fields + lengthFirstFields fields + omitEmptyFieldsIdx []int + err error + toArray bool +} + +func (st *encodingStructType) getFields(em *encMode) fields { + switch em.sort { + case SortNone, SortFastShuffle: + return st.fields + case SortLengthFirst: + return st.lengthFirstFields + default: + return st.bytewiseFields + } +} + +type bytewiseFieldSorter struct { + fields fields +} + +func (x *bytewiseFieldSorter) Len() int { + return len(x.fields) +} + +func (x *bytewiseFieldSorter) Swap(i, j int) { + x.fields[i], x.fields[j] = x.fields[j], x.fields[i] +} + +func (x *bytewiseFieldSorter) Less(i, j int) bool { + return bytes.Compare(x.fields[i].cborName, x.fields[j].cborName) <= 0 +} + +type lengthFirstFieldSorter struct { + fields fields +} + +func (x *lengthFirstFieldSorter) Len() int { + return len(x.fields) +} + +func (x *lengthFirstFieldSorter) Swap(i, j int) { + x.fields[i], x.fields[j] = x.fields[j], x.fields[i] +} + +func (x *lengthFirstFieldSorter) Less(i, j int) bool { + if len(x.fields[i].cborName) != len(x.fields[j].cborName) { + return len(x.fields[i].cborName) < len(x.fields[j].cborName) + } + return bytes.Compare(x.fields[i].cborName, x.fields[j].cborName) <= 0 +} + +func getEncodingStructType(t reflect.Type) (*encodingStructType, error) { + if v, _ := encodingStructTypeCache.Load(t); v != nil { + structType := v.(*encodingStructType) + return structType, structType.err + } + + flds, structOptions := getFields(t) + + if hasToArrayOption(structOptions) { + return getEncodingStructToArrayType(t, flds) + } + + var err error + var hasKeyAsInt bool + var hasKeyAsStr bool + var omitEmptyIdx []int + e := getEncodeBuffer() + for i := 0; i < len(flds); i++ { + // Get field's encodeFunc + flds[i].ef, flds[i].ief = getEncodeFunc(flds[i].typ) + if flds[i].ef == nil { + err = &UnsupportedTypeError{t} + break + } + + // Encode field name + if flds[i].keyAsInt { + nameAsInt, numErr := strconv.Atoi(flds[i].name) + if numErr != nil { + err = errors.New("cbor: failed to parse field name \"" + flds[i].name + "\" to int (" + numErr.Error() + ")") + break + } + flds[i].nameAsInt = int64(nameAsInt) + if nameAsInt >= 0 { + encodeHead(e, byte(cborTypePositiveInt), uint64(nameAsInt)) + } else { + n := nameAsInt*(-1) - 1 + encodeHead(e, byte(cborTypeNegativeInt), uint64(n)) + } + flds[i].cborName = make([]byte, e.Len()) + copy(flds[i].cborName, e.Bytes()) + e.Reset() + + hasKeyAsInt = true + } else { + encodeHead(e, byte(cborTypeTextString), uint64(len(flds[i].name))) + flds[i].cborName = make([]byte, e.Len()+len(flds[i].name)) + n := copy(flds[i].cborName, e.Bytes()) + copy(flds[i].cborName[n:], flds[i].name) + e.Reset() + + // If cborName contains a text string, then cborNameByteString contains a + // string that has the byte string major type but is otherwise identical to + // cborName. + flds[i].cborNameByteString = make([]byte, len(flds[i].cborName)) + copy(flds[i].cborNameByteString, flds[i].cborName) + // Reset encoded CBOR type to byte string, preserving the "additional + // information" bits: + flds[i].cborNameByteString[0] = byte(cborTypeByteString) | + getAdditionalInformation(flds[i].cborNameByteString[0]) + + hasKeyAsStr = true + } + + // Check if field can be omitted when empty + if flds[i].omitEmpty { + omitEmptyIdx = append(omitEmptyIdx, i) + } + } + putEncodeBuffer(e) + + if err != nil { + structType := &encodingStructType{err: err} + encodingStructTypeCache.Store(t, structType) + return structType, structType.err + } + + // Sort fields by canonical order + bytewiseFields := make(fields, len(flds)) + copy(bytewiseFields, flds) + sort.Sort(&bytewiseFieldSorter{bytewiseFields}) + + lengthFirstFields := bytewiseFields + if hasKeyAsInt && hasKeyAsStr { + lengthFirstFields = make(fields, len(flds)) + copy(lengthFirstFields, flds) + sort.Sort(&lengthFirstFieldSorter{lengthFirstFields}) + } + + structType := &encodingStructType{ + fields: flds, + bytewiseFields: bytewiseFields, + lengthFirstFields: lengthFirstFields, + omitEmptyFieldsIdx: omitEmptyIdx, + } + + encodingStructTypeCache.Store(t, structType) + return structType, structType.err +} + +func getEncodingStructToArrayType(t reflect.Type, flds fields) (*encodingStructType, error) { + for i := 0; i < len(flds); i++ { + // Get field's encodeFunc + flds[i].ef, flds[i].ief = getEncodeFunc(flds[i].typ) + if flds[i].ef == nil { + structType := &encodingStructType{err: &UnsupportedTypeError{t}} + encodingStructTypeCache.Store(t, structType) + return structType, structType.err + } + } + + structType := &encodingStructType{ + fields: flds, + toArray: true, + } + encodingStructTypeCache.Store(t, structType) + return structType, structType.err +} + +func getEncodeFunc(t reflect.Type) (encodeFunc, isEmptyFunc) { + if v, _ := encodeFuncCache.Load(t); v != nil { + fs := v.(encodeFuncs) + return fs.ef, fs.ief + } + ef, ief := getEncodeFuncInternal(t) + encodeFuncCache.Store(t, encodeFuncs{ef, ief}) + return ef, ief +} + +func getTypeInfo(t reflect.Type) *typeInfo { + if v, _ := typeInfoCache.Load(t); v != nil { + return v.(*typeInfo) + } + tInfo := newTypeInfo(t) + typeInfoCache.Store(t, tInfo) + return tInfo +} + +func hasToArrayOption(tag string) bool { + s := ",toarray" + idx := strings.Index(tag, s) + return idx >= 0 && (len(tag) == idx+len(s) || tag[idx+len(s)] == ',') +} diff --git a/vendor/github.com/fxamacker/cbor/v2/common.go b/vendor/github.com/fxamacker/cbor/v2/common.go new file mode 100644 index 0000000000000..ec038a49ec26f --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/common.go @@ -0,0 +1,182 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "fmt" + "strconv" +) + +type cborType uint8 + +const ( + cborTypePositiveInt cborType = 0x00 + cborTypeNegativeInt cborType = 0x20 + cborTypeByteString cborType = 0x40 + cborTypeTextString cborType = 0x60 + cborTypeArray cborType = 0x80 + cborTypeMap cborType = 0xa0 + cborTypeTag cborType = 0xc0 + cborTypePrimitives cborType = 0xe0 +) + +func (t cborType) String() string { + switch t { + case cborTypePositiveInt: + return "positive integer" + case cborTypeNegativeInt: + return "negative integer" + case cborTypeByteString: + return "byte string" + case cborTypeTextString: + return "UTF-8 text string" + case cborTypeArray: + return "array" + case cborTypeMap: + return "map" + case cborTypeTag: + return "tag" + case cborTypePrimitives: + return "primitives" + default: + return "Invalid type " + strconv.Itoa(int(t)) + } +} + +type additionalInformation uint8 + +const ( + maxAdditionalInformationWithoutArgument = 23 + additionalInformationWith1ByteArgument = 24 + additionalInformationWith2ByteArgument = 25 + additionalInformationWith4ByteArgument = 26 + additionalInformationWith8ByteArgument = 27 + + // For major type 7. + additionalInformationAsFalse = 20 + additionalInformationAsTrue = 21 + additionalInformationAsNull = 22 + additionalInformationAsUndefined = 23 + additionalInformationAsFloat16 = 25 + additionalInformationAsFloat32 = 26 + additionalInformationAsFloat64 = 27 + + // For major type 2, 3, 4, 5. + additionalInformationAsIndefiniteLengthFlag = 31 +) + +const ( + maxSimpleValueInAdditionalInformation = 23 + minSimpleValueIn1ByteArgument = 32 +) + +func (ai additionalInformation) isIndefiniteLength() bool { + return ai == additionalInformationAsIndefiniteLengthFlag +} + +const ( + // From RFC 8949 Section 3: + // "The initial byte of each encoded data item contains both information about the major type + // (the high-order 3 bits, described in Section 3.1) and additional information + // (the low-order 5 bits)." + + // typeMask is used to extract major type in initial byte of encoded data item. + typeMask = 0xe0 + + // additionalInformationMask is used to extract additional information in initial byte of encoded data item. + additionalInformationMask = 0x1f +) + +func getType(raw byte) cborType { + return cborType(raw & typeMask) +} + +func getAdditionalInformation(raw byte) byte { + return raw & additionalInformationMask +} + +func isBreakFlag(raw byte) bool { + return raw == cborBreakFlag +} + +func parseInitialByte(b byte) (t cborType, ai byte) { + return getType(b), getAdditionalInformation(b) +} + +const ( + tagNumRFC3339Time = 0 + tagNumEpochTime = 1 + tagNumUnsignedBignum = 2 + tagNumNegativeBignum = 3 + tagNumExpectedLaterEncodingBase64URL = 21 + tagNumExpectedLaterEncodingBase64 = 22 + tagNumExpectedLaterEncodingBase16 = 23 + tagNumSelfDescribedCBOR = 55799 +) + +const ( + cborBreakFlag = byte(0xff) + cborByteStringWithIndefiniteLengthHead = byte(0x5f) + cborTextStringWithIndefiniteLengthHead = byte(0x7f) + cborArrayWithIndefiniteLengthHead = byte(0x9f) + cborMapWithIndefiniteLengthHead = byte(0xbf) +) + +var ( + cborFalse = []byte{0xf4} + cborTrue = []byte{0xf5} + cborNil = []byte{0xf6} + cborNaN = []byte{0xf9, 0x7e, 0x00} + cborPositiveInfinity = []byte{0xf9, 0x7c, 0x00} + cborNegativeInfinity = []byte{0xf9, 0xfc, 0x00} +) + +// validBuiltinTag checks that supported built-in tag numbers are followed by expected content types. +func validBuiltinTag(tagNum uint64, contentHead byte) error { + t := getType(contentHead) + switch tagNum { + case tagNumRFC3339Time: + // Tag content (date/time text string in RFC 3339 format) must be string type. + if t != cborTypeTextString { + return newInadmissibleTagContentTypeError( + tagNumRFC3339Time, + "text string", + t.String()) + } + return nil + + case tagNumEpochTime: + // Tag content (epoch date/time) must be uint, int, or float type. + if t != cborTypePositiveInt && t != cborTypeNegativeInt && (contentHead < 0xf9 || contentHead > 0xfb) { + return newInadmissibleTagContentTypeError( + tagNumEpochTime, + "integer or floating-point number", + t.String()) + } + return nil + + case tagNumUnsignedBignum, tagNumNegativeBignum: + // Tag content (bignum) must be byte type. + if t != cborTypeByteString { + return newInadmissibleTagContentTypeErrorf( + fmt.Sprintf( + "tag number %d or %d must be followed by byte string, got %s", + tagNumUnsignedBignum, + tagNumNegativeBignum, + t.String(), + )) + } + return nil + + case tagNumExpectedLaterEncodingBase64URL, tagNumExpectedLaterEncodingBase64, tagNumExpectedLaterEncodingBase16: + // From RFC 8949 3.4.5.2: + // The data item tagged can be a byte string or any other data item. In the latter + // case, the tag applies to all of the byte string data items contained in the data + // item, except for those contained in a nested data item tagged with an expected + // conversion. + return nil + } + + return nil +} diff --git a/vendor/github.com/fxamacker/cbor/v2/decode.go b/vendor/github.com/fxamacker/cbor/v2/decode.go new file mode 100644 index 0000000000000..85842ac7367cc --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/decode.go @@ -0,0 +1,3187 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "encoding" + "encoding/base64" + "encoding/binary" + "encoding/hex" + "errors" + "fmt" + "io" + "math" + "math/big" + "reflect" + "strconv" + "strings" + "time" + "unicode/utf8" + + "github.com/x448/float16" +) + +// Unmarshal parses the CBOR-encoded data into the value pointed to by v +// using default decoding options. If v is nil, not a pointer, or +// a nil pointer, Unmarshal returns an error. +// +// To unmarshal CBOR into a value implementing the Unmarshaler interface, +// Unmarshal calls that value's UnmarshalCBOR method with a valid +// CBOR value. +// +// To unmarshal CBOR byte string into a value implementing the +// encoding.BinaryUnmarshaler interface, Unmarshal calls that value's +// UnmarshalBinary method with decoded CBOR byte string. +// +// To unmarshal CBOR into a pointer, Unmarshal sets the pointer to nil +// if CBOR data is null (0xf6) or undefined (0xf7). Otherwise, Unmarshal +// unmarshals CBOR into the value pointed to by the pointer. If the +// pointer is nil, Unmarshal creates a new value for it to point to. +// +// To unmarshal CBOR into an empty interface value, Unmarshal uses the +// following rules: +// +// CBOR booleans decode to bool. +// CBOR positive integers decode to uint64. +// CBOR negative integers decode to int64 (big.Int if value overflows). +// CBOR floating points decode to float64. +// CBOR byte strings decode to []byte. +// CBOR text strings decode to string. +// CBOR arrays decode to []interface{}. +// CBOR maps decode to map[interface{}]interface{}. +// CBOR null and undefined values decode to nil. +// CBOR times (tag 0 and 1) decode to time.Time. +// CBOR bignums (tag 2 and 3) decode to big.Int. +// CBOR tags with an unrecognized number decode to cbor.Tag +// +// To unmarshal a CBOR array into a slice, Unmarshal allocates a new slice +// if the CBOR array is empty or slice capacity is less than CBOR array length. +// Otherwise Unmarshal overwrites existing elements, and sets slice length +// to CBOR array length. +// +// To unmarshal a CBOR array into a Go array, Unmarshal decodes CBOR array +// elements into Go array elements. If the Go array is smaller than the +// CBOR array, the extra CBOR array elements are discarded. If the CBOR +// array is smaller than the Go array, the extra Go array elements are +// set to zero values. +// +// To unmarshal a CBOR array into a struct, struct must have a special field "_" +// with struct tag `cbor:",toarray"`. Go array elements are decoded into struct +// fields. Any "omitempty" struct field tag option is ignored in this case. +// +// To unmarshal a CBOR map into a map, Unmarshal allocates a new map only if the +// map is nil. Otherwise Unmarshal reuses the existing map and keeps existing +// entries. Unmarshal stores key-value pairs from the CBOR map into Go map. +// See DecOptions.DupMapKey to enable duplicate map key detection. +// +// To unmarshal a CBOR map into a struct, Unmarshal matches CBOR map keys to the +// keys in the following priority: +// +// 1. "cbor" key in struct field tag, +// 2. "json" key in struct field tag, +// 3. struct field name. +// +// Unmarshal tries an exact match for field name, then a case-insensitive match. +// Map key-value pairs without corresponding struct fields are ignored. See +// DecOptions.ExtraReturnErrors to return error at unknown field. +// +// To unmarshal a CBOR text string into a time.Time value, Unmarshal parses text +// string formatted in RFC3339. To unmarshal a CBOR integer/float into a +// time.Time value, Unmarshal creates an unix time with integer/float as seconds +// and fractional seconds since January 1, 1970 UTC. As a special case, Infinite +// and NaN float values decode to time.Time's zero value. +// +// To unmarshal CBOR null (0xf6) and undefined (0xf7) values into a +// slice/map/pointer, Unmarshal sets Go value to nil. Because null is often +// used to mean "not present", unmarshalling CBOR null and undefined value +// into any other Go type has no effect and returns no error. +// +// Unmarshal supports CBOR tag 55799 (self-describe CBOR), tag 0 and 1 (time), +// and tag 2 and 3 (bignum). +// +// Unmarshal returns ExtraneousDataError error (without decoding into v) +// if there are any remaining bytes following the first valid CBOR data item. +// See UnmarshalFirst, if you want to unmarshal only the first +// CBOR data item without ExtraneousDataError caused by remaining bytes. +func Unmarshal(data []byte, v interface{}) error { + return defaultDecMode.Unmarshal(data, v) +} + +// UnmarshalFirst parses the first CBOR data item into the value pointed to by v +// using default decoding options. Any remaining bytes are returned in rest. +// +// If v is nil, not a pointer, or a nil pointer, UnmarshalFirst returns an error. +// +// See the documentation for Unmarshal for details. +func UnmarshalFirst(data []byte, v interface{}) (rest []byte, err error) { + return defaultDecMode.UnmarshalFirst(data, v) +} + +// Valid checks whether data is a well-formed encoded CBOR data item and +// that it complies with default restrictions such as MaxNestedLevels, +// MaxArrayElements, MaxMapPairs, etc. +// +// If there are any remaining bytes after the CBOR data item, +// an ExtraneousDataError is returned. +// +// WARNING: Valid doesn't check if encoded CBOR data item is valid (i.e. validity) +// and RFC 8949 distinctly defines what is "Valid" and what is "Well-formed". +// +// Deprecated: Valid is kept for compatibility and should not be used. +// Use Wellformed instead because it has a more appropriate name. +func Valid(data []byte) error { + return defaultDecMode.Valid(data) +} + +// Wellformed checks whether data is a well-formed encoded CBOR data item and +// that it complies with default restrictions such as MaxNestedLevels, +// MaxArrayElements, MaxMapPairs, etc. +// +// If there are any remaining bytes after the CBOR data item, +// an ExtraneousDataError is returned. +func Wellformed(data []byte) error { + return defaultDecMode.Wellformed(data) +} + +// Unmarshaler is the interface implemented by types that wish to unmarshal +// CBOR data themselves. The input is a valid CBOR value. UnmarshalCBOR +// must copy the CBOR data if it needs to use it after returning. +type Unmarshaler interface { + UnmarshalCBOR([]byte) error +} + +// InvalidUnmarshalError describes an invalid argument passed to Unmarshal. +type InvalidUnmarshalError struct { + s string +} + +func (e *InvalidUnmarshalError) Error() string { + return e.s +} + +// UnmarshalTypeError describes a CBOR value that can't be decoded to a Go type. +type UnmarshalTypeError struct { + CBORType string // type of CBOR value + GoType string // type of Go value it could not be decoded into + StructFieldName string // name of the struct field holding the Go value (optional) + errorMsg string // additional error message (optional) +} + +func (e *UnmarshalTypeError) Error() string { + var s string + if e.StructFieldName != "" { + s = "cbor: cannot unmarshal " + e.CBORType + " into Go struct field " + e.StructFieldName + " of type " + e.GoType + } else { + s = "cbor: cannot unmarshal " + e.CBORType + " into Go value of type " + e.GoType + } + if e.errorMsg != "" { + s += " (" + e.errorMsg + ")" + } + return s +} + +// InvalidMapKeyTypeError describes invalid Go map key type when decoding CBOR map. +// For example, Go doesn't allow slice as map key. +type InvalidMapKeyTypeError struct { + GoType string +} + +func (e *InvalidMapKeyTypeError) Error() string { + return "cbor: invalid map key type: " + e.GoType +} + +// DupMapKeyError describes detected duplicate map key in CBOR map. +type DupMapKeyError struct { + Key interface{} + Index int +} + +func (e *DupMapKeyError) Error() string { + return fmt.Sprintf("cbor: found duplicate map key \"%v\" at map element index %d", e.Key, e.Index) +} + +// UnknownFieldError describes detected unknown field in CBOR map when decoding to Go struct. +type UnknownFieldError struct { + Index int +} + +func (e *UnknownFieldError) Error() string { + return fmt.Sprintf("cbor: found unknown field at map element index %d", e.Index) +} + +// UnacceptableDataItemError is returned when unmarshaling a CBOR input that contains a data item +// that is not acceptable to a specific CBOR-based application protocol ("invalid or unexpected" as +// described in RFC 8949 Section 5 Paragraph 3). +type UnacceptableDataItemError struct { + CBORType string + Message string +} + +func (e UnacceptableDataItemError) Error() string { + return fmt.Sprintf("cbor: data item of cbor type %s is not accepted by protocol: %s", e.CBORType, e.Message) +} + +// ByteStringExpectedFormatError is returned when unmarshaling CBOR byte string fails when +// using non-default ByteStringExpectedFormat decoding option that makes decoder expect +// a specified format such as base64, hex, etc. +type ByteStringExpectedFormatError struct { + expectedFormatOption ByteStringExpectedFormatMode + err error +} + +func newByteStringExpectedFormatError(expectedFormatOption ByteStringExpectedFormatMode, err error) *ByteStringExpectedFormatError { + return &ByteStringExpectedFormatError{expectedFormatOption, err} +} + +func (e *ByteStringExpectedFormatError) Error() string { + switch e.expectedFormatOption { + case ByteStringExpectedBase64URL: + return fmt.Sprintf("cbor: failed to decode base64url from byte string: %s", e.err) + + case ByteStringExpectedBase64: + return fmt.Sprintf("cbor: failed to decode base64 from byte string: %s", e.err) + + case ByteStringExpectedBase16: + return fmt.Sprintf("cbor: failed to decode hex from byte string: %s", e.err) + + default: + return fmt.Sprintf("cbor: failed to decode byte string in expected format %d: %s", e.expectedFormatOption, e.err) + } +} + +func (e *ByteStringExpectedFormatError) Unwrap() error { + return e.err +} + +// InadmissibleTagContentTypeError is returned when unmarshaling built-in CBOR tags +// fails because of inadmissible type for tag content. Currently, the built-in +// CBOR tags in this codec are tags 0-3 and 21-23. +// See "Tag validity" in RFC 8949 Section 5.3.2. +type InadmissibleTagContentTypeError struct { + s string + tagNum int + expectedTagContentType string + gotTagContentType string +} + +func newInadmissibleTagContentTypeError( + tagNum int, + expectedTagContentType string, + gotTagContentType string, +) *InadmissibleTagContentTypeError { + return &InadmissibleTagContentTypeError{ + tagNum: tagNum, + expectedTagContentType: expectedTagContentType, + gotTagContentType: gotTagContentType, + } +} + +func newInadmissibleTagContentTypeErrorf(s string) *InadmissibleTagContentTypeError { + return &InadmissibleTagContentTypeError{s: "cbor: " + s} //nolint:goconst // ignore "cbor" +} + +func (e *InadmissibleTagContentTypeError) Error() string { + if e.s == "" { + return fmt.Sprintf( + "cbor: tag number %d must be followed by %s, got %s", + e.tagNum, + e.expectedTagContentType, + e.gotTagContentType, + ) + } + return e.s +} + +// DupMapKeyMode specifies how to enforce duplicate map key. Two map keys are considered duplicates if: +// 1. When decoding into a struct, both keys match the same struct field. The keys are also +// considered duplicates if neither matches any field and decoding to interface{} would produce +// equal (==) values for both keys. +// 2. When decoding into a map, both keys are equal (==) when decoded into values of the +// destination map's key type. +type DupMapKeyMode int + +const ( + // DupMapKeyQuiet doesn't enforce duplicate map key. Decoder quietly (no error) + // uses faster of "keep first" or "keep last" depending on Go data type and other factors. + DupMapKeyQuiet DupMapKeyMode = iota + + // DupMapKeyEnforcedAPF enforces detection and rejection of duplicate map keys. + // APF means "Allow Partial Fill" and the destination map or struct can be partially filled. + // If a duplicate map key is detected, DupMapKeyError is returned without further decoding + // of the map. It's the caller's responsibility to respond to DupMapKeyError by + // discarding the partially filled result if their protocol requires it. + // WARNING: using DupMapKeyEnforcedAPF will decrease performance and increase memory use. + DupMapKeyEnforcedAPF + + maxDupMapKeyMode +) + +func (dmkm DupMapKeyMode) valid() bool { + return dmkm >= 0 && dmkm < maxDupMapKeyMode +} + +// IndefLengthMode specifies whether to allow indefinite length items. +type IndefLengthMode int + +const ( + // IndefLengthAllowed allows indefinite length items. + IndefLengthAllowed IndefLengthMode = iota + + // IndefLengthForbidden disallows indefinite length items. + IndefLengthForbidden + + maxIndefLengthMode +) + +func (m IndefLengthMode) valid() bool { + return m >= 0 && m < maxIndefLengthMode +} + +// TagsMode specifies whether to allow CBOR tags. +type TagsMode int + +const ( + // TagsAllowed allows CBOR tags. + TagsAllowed TagsMode = iota + + // TagsForbidden disallows CBOR tags. + TagsForbidden + + maxTagsMode +) + +func (tm TagsMode) valid() bool { + return tm >= 0 && tm < maxTagsMode +} + +// IntDecMode specifies which Go type (int64, uint64, or big.Int) should +// be used when decoding CBOR integers (major type 0 and 1) to Go interface{}. +type IntDecMode int + +const ( + // IntDecConvertNone affects how CBOR integers (major type 0 and 1) decode to Go interface{}. + // It decodes CBOR unsigned integer (major type 0) to: + // - uint64 + // It decodes CBOR negative integer (major type 1) to: + // - int64 if value fits + // - big.Int or *big.Int (see BigIntDecMode) if value doesn't fit into int64 + IntDecConvertNone IntDecMode = iota + + // IntDecConvertSigned affects how CBOR integers (major type 0 and 1) decode to Go interface{}. + // It decodes CBOR integers (major type 0 and 1) to: + // - int64 if value fits + // - big.Int or *big.Int (see BigIntDecMode) if value < math.MinInt64 + // - return UnmarshalTypeError if value > math.MaxInt64 + // Deprecated: IntDecConvertSigned should not be used. + // Please use other options, such as IntDecConvertSignedOrError, IntDecConvertSignedOrBigInt, IntDecConvertNone. + IntDecConvertSigned + + // IntDecConvertSignedOrFail affects how CBOR integers (major type 0 and 1) decode to Go interface{}. + // It decodes CBOR integers (major type 0 and 1) to: + // - int64 if value fits + // - return UnmarshalTypeError if value doesn't fit into int64 + IntDecConvertSignedOrFail + + // IntDecConvertSigned affects how CBOR integers (major type 0 and 1) decode to Go interface{}. + // It makes CBOR integers (major type 0 and 1) decode to: + // - int64 if value fits + // - big.Int or *big.Int (see BigIntDecMode) if value doesn't fit into int64 + IntDecConvertSignedOrBigInt + + maxIntDec +) + +func (idm IntDecMode) valid() bool { + return idm >= 0 && idm < maxIntDec +} + +// MapKeyByteStringMode specifies how to decode CBOR byte string (major type 2) +// as Go map key when decoding CBOR map key into an empty Go interface value. +// Specifically, this option applies when decoding CBOR map into +// - Go empty interface, or +// - Go map with empty interface as key type. +// The CBOR map key types handled by this option are +// - byte string +// - tagged byte string +// - nested tagged byte string +type MapKeyByteStringMode int + +const ( + // MapKeyByteStringAllowed allows CBOR byte string to be decoded as Go map key. + // Since Go doesn't allow []byte as map key, CBOR byte string is decoded to + // ByteString which has underlying string type. + // This is the default setting. + MapKeyByteStringAllowed MapKeyByteStringMode = iota + + // MapKeyByteStringForbidden forbids CBOR byte string being decoded as Go map key. + // Attempting to decode CBOR byte string as map key into empty interface value + // returns a decoding error. + MapKeyByteStringForbidden + + maxMapKeyByteStringMode +) + +func (mkbsm MapKeyByteStringMode) valid() bool { + return mkbsm >= 0 && mkbsm < maxMapKeyByteStringMode +} + +// ExtraDecErrorCond specifies extra conditions that should be treated as errors. +type ExtraDecErrorCond uint + +// ExtraDecErrorNone indicates no extra error condition. +const ExtraDecErrorNone ExtraDecErrorCond = 0 + +const ( + // ExtraDecErrorUnknownField indicates error condition when destination + // Go struct doesn't have a field matching a CBOR map key. + ExtraDecErrorUnknownField ExtraDecErrorCond = 1 << iota + + maxExtraDecError +) + +func (ec ExtraDecErrorCond) valid() bool { + return ec < maxExtraDecError +} + +// UTF8Mode option specifies if decoder should +// decode CBOR Text containing invalid UTF-8 string. +type UTF8Mode int + +const ( + // UTF8RejectInvalid rejects CBOR Text containing + // invalid UTF-8 string. + UTF8RejectInvalid UTF8Mode = iota + + // UTF8DecodeInvalid allows decoding CBOR Text containing + // invalid UTF-8 string. + UTF8DecodeInvalid + + maxUTF8Mode +) + +func (um UTF8Mode) valid() bool { + return um >= 0 && um < maxUTF8Mode +} + +// FieldNameMatchingMode specifies how string keys in CBOR maps are matched to Go struct field names. +type FieldNameMatchingMode int + +const ( + // FieldNameMatchingPreferCaseSensitive prefers to decode map items into struct fields whose names (or tag + // names) exactly match the item's key. If there is no such field, a map item will be decoded into a field whose + // name is a case-insensitive match for the item's key. + FieldNameMatchingPreferCaseSensitive FieldNameMatchingMode = iota + + // FieldNameMatchingCaseSensitive decodes map items only into a struct field whose name (or tag name) is an + // exact match for the item's key. + FieldNameMatchingCaseSensitive + + maxFieldNameMatchingMode +) + +func (fnmm FieldNameMatchingMode) valid() bool { + return fnmm >= 0 && fnmm < maxFieldNameMatchingMode +} + +// BigIntDecMode specifies how to decode CBOR bignum to Go interface{}. +type BigIntDecMode int + +const ( + // BigIntDecodeValue makes CBOR bignum decode to big.Int (instead of *big.Int) + // when unmarshalling into a Go interface{}. + BigIntDecodeValue BigIntDecMode = iota + + // BigIntDecodePointer makes CBOR bignum decode to *big.Int when + // unmarshalling into a Go interface{}. + BigIntDecodePointer + + maxBigIntDecMode +) + +func (bidm BigIntDecMode) valid() bool { + return bidm >= 0 && bidm < maxBigIntDecMode +} + +// ByteStringToStringMode specifies the behavior when decoding a CBOR byte string into a Go string. +type ByteStringToStringMode int + +const ( + // ByteStringToStringForbidden generates an error on an attempt to decode a CBOR byte string into a Go string. + ByteStringToStringForbidden ByteStringToStringMode = iota + + // ByteStringToStringAllowed permits decoding a CBOR byte string into a Go string. + ByteStringToStringAllowed + + // ByteStringToStringAllowedWithExpectedLaterEncoding permits decoding a CBOR byte string + // into a Go string. Also, if the byte string is enclosed (directly or indirectly) by one of + // the "expected later encoding" tags (numbers 21 through 23), the destination string will + // be populated by applying the designated text encoding to the contents of the input byte + // string. + ByteStringToStringAllowedWithExpectedLaterEncoding + + maxByteStringToStringMode +) + +func (bstsm ByteStringToStringMode) valid() bool { + return bstsm >= 0 && bstsm < maxByteStringToStringMode +} + +// FieldNameByteStringMode specifies the behavior when decoding a CBOR byte string map key as a Go struct field name. +type FieldNameByteStringMode int + +const ( + // FieldNameByteStringForbidden generates an error on an attempt to decode a CBOR byte string map key as a Go struct field name. + FieldNameByteStringForbidden FieldNameByteStringMode = iota + + // FieldNameByteStringAllowed permits CBOR byte string map keys to be recognized as Go struct field names. + FieldNameByteStringAllowed + + maxFieldNameByteStringMode +) + +func (fnbsm FieldNameByteStringMode) valid() bool { + return fnbsm >= 0 && fnbsm < maxFieldNameByteStringMode +} + +// UnrecognizedTagToAnyMode specifies how to decode unrecognized CBOR tag into an empty interface (any). +// Currently, recognized CBOR tag numbers are 0, 1, 2, 3, or registered by TagSet. +type UnrecognizedTagToAnyMode int + +const ( + // UnrecognizedTagNumAndContentToAny decodes CBOR tag number and tag content to cbor.Tag + // when decoding unrecognized CBOR tag into an empty interface. + UnrecognizedTagNumAndContentToAny UnrecognizedTagToAnyMode = iota + + // UnrecognizedTagContentToAny decodes only CBOR tag content (into its default type) + // when decoding unrecognized CBOR tag into an empty interface. + UnrecognizedTagContentToAny + + maxUnrecognizedTagToAny +) + +func (uttam UnrecognizedTagToAnyMode) valid() bool { + return uttam >= 0 && uttam < maxUnrecognizedTagToAny +} + +// TimeTagToAnyMode specifies how to decode CBOR tag 0 and 1 into an empty interface (any). +// Based on the specified mode, Unmarshal can return a time.Time value or a time string in a specific format. +type TimeTagToAnyMode int + +const ( + // TimeTagToTime decodes CBOR tag 0 and 1 into a time.Time value + // when decoding tag 0 or 1 into an empty interface. + TimeTagToTime TimeTagToAnyMode = iota + + // TimeTagToRFC3339 decodes CBOR tag 0 and 1 into a time string in RFC3339 format + // when decoding tag 0 or 1 into an empty interface. + TimeTagToRFC3339 + + // TimeTagToRFC3339Nano decodes CBOR tag 0 and 1 into a time string in RFC3339Nano format + // when decoding tag 0 or 1 into an empty interface. + TimeTagToRFC3339Nano + + maxTimeTagToAnyMode +) + +func (tttam TimeTagToAnyMode) valid() bool { + return tttam >= 0 && tttam < maxTimeTagToAnyMode +} + +// SimpleValueRegistry is a registry of unmarshaling behaviors for each possible CBOR simple value +// number (0...23 and 32...255). +type SimpleValueRegistry struct { + rejected [256]bool +} + +// WithRejectedSimpleValue registers the given simple value as rejected. If the simple value is +// encountered in a CBOR input during unmarshaling, an UnacceptableDataItemError is returned. +func WithRejectedSimpleValue(sv SimpleValue) func(*SimpleValueRegistry) error { + return func(r *SimpleValueRegistry) error { + if sv >= 24 && sv <= 31 { + return fmt.Errorf("cbor: cannot set analog for reserved simple value %d", sv) + } + r.rejected[sv] = true + return nil + } +} + +// Creates a new SimpleValueRegistry. The registry state is initialized by executing the provided +// functions in order against a registry that is pre-populated with the defaults for all well-formed +// simple value numbers. +func NewSimpleValueRegistryFromDefaults(fns ...func(*SimpleValueRegistry) error) (*SimpleValueRegistry, error) { + var r SimpleValueRegistry + for _, fn := range fns { + if err := fn(&r); err != nil { + return nil, err + } + } + return &r, nil +} + +// NaNMode specifies how to decode floating-point values (major type 7, additional information 25 +// through 27) representing NaN (not-a-number). +type NaNMode int + +const ( + // NaNDecodeAllowed will decode NaN values to Go float32 or float64. + NaNDecodeAllowed NaNMode = iota + + // NaNDecodeForbidden will return an UnacceptableDataItemError on an attempt to decode a NaN value. + NaNDecodeForbidden + + maxNaNDecode +) + +func (ndm NaNMode) valid() bool { + return ndm >= 0 && ndm < maxNaNDecode +} + +// InfMode specifies how to decode floating-point values (major type 7, additional information 25 +// through 27) representing positive or negative infinity. +type InfMode int + +const ( + // InfDecodeAllowed will decode infinite values to Go float32 or float64. + InfDecodeAllowed InfMode = iota + + // InfDecodeForbidden will return an UnacceptableDataItemError on an attempt to decode an + // infinite value. + InfDecodeForbidden + + maxInfDecode +) + +func (idm InfMode) valid() bool { + return idm >= 0 && idm < maxInfDecode +} + +// ByteStringToTimeMode specifies the behavior when decoding a CBOR byte string into a Go time.Time. +type ByteStringToTimeMode int + +const ( + // ByteStringToTimeForbidden generates an error on an attempt to decode a CBOR byte string into a Go time.Time. + ByteStringToTimeForbidden ByteStringToTimeMode = iota + + // ByteStringToTimeAllowed permits decoding a CBOR byte string into a Go time.Time. + ByteStringToTimeAllowed + + maxByteStringToTimeMode +) + +func (bttm ByteStringToTimeMode) valid() bool { + return bttm >= 0 && bttm < maxByteStringToTimeMode +} + +// ByteStringExpectedFormatMode specifies how to decode CBOR byte string into Go byte slice +// when the byte string is NOT enclosed in CBOR tag 21, 22, or 23. An error is returned if +// the CBOR byte string does not contain the expected format (e.g. base64) specified. +// For tags 21-23, see "Expected Later Encoding for CBOR-to-JSON Converters" +// in RFC 8949 Section 3.4.5.2. +type ByteStringExpectedFormatMode int + +const ( + // ByteStringExpectedFormatNone copies the unmodified CBOR byte string into Go byte slice + // if the byte string is not tagged by CBOR tag 21-23. + ByteStringExpectedFormatNone ByteStringExpectedFormatMode = iota + + // ByteStringExpectedBase64URL expects CBOR byte strings to contain base64url-encoded bytes + // if the byte string is not tagged by CBOR tag 21-23. The decoder will attempt to decode + // the base64url-encoded bytes into Go slice. + ByteStringExpectedBase64URL + + // ByteStringExpectedBase64 expects CBOR byte strings to contain base64-encoded bytes + // if the byte string is not tagged by CBOR tag 21-23. The decoder will attempt to decode + // the base64-encoded bytes into Go slice. + ByteStringExpectedBase64 + + // ByteStringExpectedBase16 expects CBOR byte strings to contain base16-encoded bytes + // if the byte string is not tagged by CBOR tag 21-23. The decoder will attempt to decode + // the base16-encoded bytes into Go slice. + ByteStringExpectedBase16 + + maxByteStringExpectedFormatMode +) + +func (bsefm ByteStringExpectedFormatMode) valid() bool { + return bsefm >= 0 && bsefm < maxByteStringExpectedFormatMode +} + +// BignumTagMode specifies whether or not the "bignum" tags 2 and 3 (RFC 8949 Section 3.4.3) can be +// decoded. +type BignumTagMode int + +const ( + // BignumTagAllowed allows bignum tags to be decoded. + BignumTagAllowed BignumTagMode = iota + + // BignumTagForbidden produces an UnacceptableDataItemError during Unmarshal if a bignum tag + // is encountered in the input. + BignumTagForbidden + + maxBignumTag +) + +func (btm BignumTagMode) valid() bool { + return btm >= 0 && btm < maxBignumTag +} + +// BinaryUnmarshalerMode specifies how to decode into types that implement +// encoding.BinaryUnmarshaler. +type BinaryUnmarshalerMode int + +const ( + // BinaryUnmarshalerByteString will invoke UnmarshalBinary on the contents of a CBOR byte + // string when decoding into a value that implements BinaryUnmarshaler. + BinaryUnmarshalerByteString BinaryUnmarshalerMode = iota + + // BinaryUnmarshalerNone does not recognize BinaryUnmarshaler implementations during decode. + BinaryUnmarshalerNone + + maxBinaryUnmarshalerMode +) + +func (bum BinaryUnmarshalerMode) valid() bool { + return bum >= 0 && bum < maxBinaryUnmarshalerMode +} + +// DecOptions specifies decoding options. +type DecOptions struct { + // DupMapKey specifies whether to enforce duplicate map key. + DupMapKey DupMapKeyMode + + // TimeTag specifies whether or not untagged data items, or tags other + // than tag 0 and tag 1, can be decoded to time.Time. If tag 0 or tag 1 + // appears in an input, the type of its content is always validated as + // specified in RFC 8949. That behavior is not controlled by this + // option. The behavior of the supported modes are: + // + // DecTagIgnored (default): Untagged text strings and text strings + // enclosed in tags other than 0 and 1 are decoded as though enclosed + // in tag 0. Untagged unsigned integers, negative integers, and + // floating-point numbers (or those enclosed in tags other than 0 and + // 1) are decoded as though enclosed in tag 1. Decoding a tag other + // than 0 or 1 enclosing simple values null or undefined into a + // time.Time does not modify the destination value. + // + // DecTagOptional: Untagged text strings are decoded as though + // enclosed in tag 0. Untagged unsigned integers, negative integers, + // and floating-point numbers are decoded as though enclosed in tag + // 1. Tags other than 0 and 1 will produce an error on attempts to + // decode them into a time.Time. + // + // DecTagRequired: Only tags 0 and 1 can be decoded to time.Time. Any + // other input will produce an error. + TimeTag DecTagMode + + // MaxNestedLevels specifies the max nested levels allowed for any combination of CBOR array, maps, and tags. + // Default is 32 levels and it can be set to [4, 65535]. Note that higher maximum levels of nesting can + // require larger amounts of stack to deserialize. Don't increase this higher than you require. + MaxNestedLevels int + + // MaxArrayElements specifies the max number of elements for CBOR arrays. + // Default is 128*1024=131072 and it can be set to [16, 2147483647] + MaxArrayElements int + + // MaxMapPairs specifies the max number of key-value pairs for CBOR maps. + // Default is 128*1024=131072 and it can be set to [16, 2147483647] + MaxMapPairs int + + // IndefLength specifies whether to allow indefinite length CBOR items. + IndefLength IndefLengthMode + + // TagsMd specifies whether to allow CBOR tags (major type 6). + TagsMd TagsMode + + // IntDec specifies which Go integer type (int64 or uint64) to use + // when decoding CBOR int (major type 0 and 1) to Go interface{}. + IntDec IntDecMode + + // MapKeyByteString specifies how to decode CBOR byte string as map key + // when decoding CBOR map with byte string key into an empty interface value. + // By default, an error is returned when attempting to decode CBOR byte string + // as map key because Go doesn't allow []byte as map key. + MapKeyByteString MapKeyByteStringMode + + // ExtraReturnErrors specifies extra conditions that should be treated as errors. + ExtraReturnErrors ExtraDecErrorCond + + // DefaultMapType specifies Go map type to create and decode to + // when unmarshalling CBOR into an empty interface value. + // By default, unmarshal uses map[interface{}]interface{}. + DefaultMapType reflect.Type + + // UTF8 specifies if decoder should decode CBOR Text containing invalid UTF-8. + // By default, unmarshal rejects CBOR text containing invalid UTF-8. + UTF8 UTF8Mode + + // FieldNameMatching specifies how string keys in CBOR maps are matched to Go struct field names. + FieldNameMatching FieldNameMatchingMode + + // BigIntDec specifies how to decode CBOR bignum to Go interface{}. + BigIntDec BigIntDecMode + + // DefaultByteStringType is the Go type that should be produced when decoding a CBOR byte + // string into an empty interface value. Types to which a []byte is convertible are valid + // for this option, except for array and pointer-to-array types. If nil, the default is + // []byte. + DefaultByteStringType reflect.Type + + // ByteStringToString specifies the behavior when decoding a CBOR byte string into a Go string. + ByteStringToString ByteStringToStringMode + + // FieldNameByteString specifies the behavior when decoding a CBOR byte string map key as a + // Go struct field name. + FieldNameByteString FieldNameByteStringMode + + // UnrecognizedTagToAny specifies how to decode unrecognized CBOR tag into an empty interface. + // Currently, recognized CBOR tag numbers are 0, 1, 2, 3, or registered by TagSet. + UnrecognizedTagToAny UnrecognizedTagToAnyMode + + // TimeTagToAny specifies how to decode CBOR tag 0 and 1 into an empty interface (any). + // Based on the specified mode, Unmarshal can return a time.Time value or a time string in a specific format. + TimeTagToAny TimeTagToAnyMode + + // SimpleValues is an immutable mapping from each CBOR simple value to a corresponding + // unmarshal behavior. If nil, the simple values false, true, null, and undefined are mapped + // to the Go analog values false, true, nil, and nil, respectively, and all other simple + // values N (except the reserved simple values 24 through 31) are mapped to + // cbor.SimpleValue(N). In other words, all well-formed simple values can be decoded. + // + // Users may provide a custom SimpleValueRegistry constructed via + // NewSimpleValueRegistryFromDefaults. + SimpleValues *SimpleValueRegistry + + // NaN specifies how to decode floating-point values (major type 7, additional information + // 25 through 27) representing NaN (not-a-number). + NaN NaNMode + + // Inf specifies how to decode floating-point values (major type 7, additional information + // 25 through 27) representing positive or negative infinity. + Inf InfMode + + // ByteStringToTime specifies how to decode CBOR byte string into Go time.Time. + ByteStringToTime ByteStringToTimeMode + + // ByteStringExpectedFormat specifies how to decode CBOR byte string into Go byte slice + // when the byte string is NOT enclosed in CBOR tag 21, 22, or 23. An error is returned if + // the CBOR byte string does not contain the expected format (e.g. base64) specified. + // For tags 21-23, see "Expected Later Encoding for CBOR-to-JSON Converters" + // in RFC 8949 Section 3.4.5.2. + ByteStringExpectedFormat ByteStringExpectedFormatMode + + // BignumTag specifies whether or not the "bignum" tags 2 and 3 (RFC 8949 Section 3.4.3) can + // be decoded. Unlike BigIntDec, this option applies to all bignum tags encountered in a + // CBOR input, independent of the type of the destination value of a particular Unmarshal + // operation. + BignumTag BignumTagMode + + // BinaryUnmarshaler specifies how to decode into types that implement + // encoding.BinaryUnmarshaler. + BinaryUnmarshaler BinaryUnmarshalerMode +} + +// DecMode returns DecMode with immutable options and no tags (safe for concurrency). +func (opts DecOptions) DecMode() (DecMode, error) { //nolint:gocritic // ignore hugeParam + return opts.decMode() +} + +// validForTags checks that the provided tag set is compatible with these options and returns a +// non-nil error if and only if the provided tag set is incompatible. +func (opts DecOptions) validForTags(tags TagSet) error { //nolint:gocritic // ignore hugeParam + if opts.TagsMd == TagsForbidden { + return errors.New("cbor: cannot create DecMode with TagSet when TagsMd is TagsForbidden") + } + if tags == nil { + return errors.New("cbor: cannot create DecMode with nil value as TagSet") + } + if opts.ByteStringToString == ByteStringToStringAllowedWithExpectedLaterEncoding || + opts.ByteStringExpectedFormat != ByteStringExpectedFormatNone { + for _, tagNum := range []uint64{ + tagNumExpectedLaterEncodingBase64URL, + tagNumExpectedLaterEncodingBase64, + tagNumExpectedLaterEncodingBase16, + } { + if rt := tags.getTypeFromTagNum([]uint64{tagNum}); rt != nil { + return fmt.Errorf("cbor: DecMode with non-default StringExpectedEncoding or ByteSliceExpectedEncoding treats tag %d as built-in and conflicts with the provided TagSet's registration of %v", tagNum, rt) + } + } + + } + return nil +} + +// DecModeWithTags returns DecMode with options and tags that are both immutable (safe for concurrency). +func (opts DecOptions) DecModeWithTags(tags TagSet) (DecMode, error) { //nolint:gocritic // ignore hugeParam + if err := opts.validForTags(tags); err != nil { + return nil, err + } + dm, err := opts.decMode() + if err != nil { + return nil, err + } + + // Copy tags + ts := tagSet(make(map[reflect.Type]*tagItem)) + syncTags := tags.(*syncTagSet) + syncTags.RLock() + for contentType, tag := range syncTags.t { + if tag.opts.DecTag != DecTagIgnored { + ts[contentType] = tag + } + } + syncTags.RUnlock() + + if len(ts) > 0 { + dm.tags = ts + } + + return dm, nil +} + +// DecModeWithSharedTags returns DecMode with immutable options and mutable shared tags (safe for concurrency). +func (opts DecOptions) DecModeWithSharedTags(tags TagSet) (DecMode, error) { //nolint:gocritic // ignore hugeParam + if err := opts.validForTags(tags); err != nil { + return nil, err + } + dm, err := opts.decMode() + if err != nil { + return nil, err + } + dm.tags = tags + return dm, nil +} + +const ( + defaultMaxArrayElements = 131072 + minMaxArrayElements = 16 + maxMaxArrayElements = 2147483647 + + defaultMaxMapPairs = 131072 + minMaxMapPairs = 16 + maxMaxMapPairs = 2147483647 + + defaultMaxNestedLevels = 32 + minMaxNestedLevels = 4 + maxMaxNestedLevels = 65535 +) + +var defaultSimpleValues = func() *SimpleValueRegistry { + registry, err := NewSimpleValueRegistryFromDefaults() + if err != nil { + panic(err) + } + return registry +}() + +//nolint:gocyclo // Each option comes with some manageable boilerplate +func (opts DecOptions) decMode() (*decMode, error) { //nolint:gocritic // ignore hugeParam + if !opts.DupMapKey.valid() { + return nil, errors.New("cbor: invalid DupMapKey " + strconv.Itoa(int(opts.DupMapKey))) + } + + if !opts.TimeTag.valid() { + return nil, errors.New("cbor: invalid TimeTag " + strconv.Itoa(int(opts.TimeTag))) + } + + if !opts.IndefLength.valid() { + return nil, errors.New("cbor: invalid IndefLength " + strconv.Itoa(int(opts.IndefLength))) + } + + if !opts.TagsMd.valid() { + return nil, errors.New("cbor: invalid TagsMd " + strconv.Itoa(int(opts.TagsMd))) + } + + if !opts.IntDec.valid() { + return nil, errors.New("cbor: invalid IntDec " + strconv.Itoa(int(opts.IntDec))) + } + + if !opts.MapKeyByteString.valid() { + return nil, errors.New("cbor: invalid MapKeyByteString " + strconv.Itoa(int(opts.MapKeyByteString))) + } + + if opts.MaxNestedLevels == 0 { + opts.MaxNestedLevels = defaultMaxNestedLevels + } else if opts.MaxNestedLevels < minMaxNestedLevels || opts.MaxNestedLevels > maxMaxNestedLevels { + return nil, errors.New("cbor: invalid MaxNestedLevels " + strconv.Itoa(opts.MaxNestedLevels) + + " (range is [" + strconv.Itoa(minMaxNestedLevels) + ", " + strconv.Itoa(maxMaxNestedLevels) + "])") + } + + if opts.MaxArrayElements == 0 { + opts.MaxArrayElements = defaultMaxArrayElements + } else if opts.MaxArrayElements < minMaxArrayElements || opts.MaxArrayElements > maxMaxArrayElements { + return nil, errors.New("cbor: invalid MaxArrayElements " + strconv.Itoa(opts.MaxArrayElements) + + " (range is [" + strconv.Itoa(minMaxArrayElements) + ", " + strconv.Itoa(maxMaxArrayElements) + "])") + } + + if opts.MaxMapPairs == 0 { + opts.MaxMapPairs = defaultMaxMapPairs + } else if opts.MaxMapPairs < minMaxMapPairs || opts.MaxMapPairs > maxMaxMapPairs { + return nil, errors.New("cbor: invalid MaxMapPairs " + strconv.Itoa(opts.MaxMapPairs) + + " (range is [" + strconv.Itoa(minMaxMapPairs) + ", " + strconv.Itoa(maxMaxMapPairs) + "])") + } + + if !opts.ExtraReturnErrors.valid() { + return nil, errors.New("cbor: invalid ExtraReturnErrors " + strconv.Itoa(int(opts.ExtraReturnErrors))) + } + + if opts.DefaultMapType != nil && opts.DefaultMapType.Kind() != reflect.Map { + return nil, fmt.Errorf("cbor: invalid DefaultMapType %s", opts.DefaultMapType) + } + + if !opts.UTF8.valid() { + return nil, errors.New("cbor: invalid UTF8 " + strconv.Itoa(int(opts.UTF8))) + } + + if !opts.FieldNameMatching.valid() { + return nil, errors.New("cbor: invalid FieldNameMatching " + strconv.Itoa(int(opts.FieldNameMatching))) + } + + if !opts.BigIntDec.valid() { + return nil, errors.New("cbor: invalid BigIntDec " + strconv.Itoa(int(opts.BigIntDec))) + } + + if opts.DefaultByteStringType != nil && + opts.DefaultByteStringType.Kind() != reflect.String && + (opts.DefaultByteStringType.Kind() != reflect.Slice || opts.DefaultByteStringType.Elem().Kind() != reflect.Uint8) { + return nil, fmt.Errorf("cbor: invalid DefaultByteStringType: %s is not of kind string or []uint8", opts.DefaultByteStringType) + } + + if !opts.ByteStringToString.valid() { + return nil, errors.New("cbor: invalid ByteStringToString " + strconv.Itoa(int(opts.ByteStringToString))) + } + + if !opts.FieldNameByteString.valid() { + return nil, errors.New("cbor: invalid FieldNameByteString " + strconv.Itoa(int(opts.FieldNameByteString))) + } + + if !opts.UnrecognizedTagToAny.valid() { + return nil, errors.New("cbor: invalid UnrecognizedTagToAnyMode " + strconv.Itoa(int(opts.UnrecognizedTagToAny))) + } + simpleValues := opts.SimpleValues + if simpleValues == nil { + simpleValues = defaultSimpleValues + } + + if !opts.TimeTagToAny.valid() { + return nil, errors.New("cbor: invalid TimeTagToAny " + strconv.Itoa(int(opts.TimeTagToAny))) + } + + if !opts.NaN.valid() { + return nil, errors.New("cbor: invalid NaNDec " + strconv.Itoa(int(opts.NaN))) + } + + if !opts.Inf.valid() { + return nil, errors.New("cbor: invalid InfDec " + strconv.Itoa(int(opts.Inf))) + } + + if !opts.ByteStringToTime.valid() { + return nil, errors.New("cbor: invalid ByteStringToTime " + strconv.Itoa(int(opts.ByteStringToTime))) + } + + if !opts.ByteStringExpectedFormat.valid() { + return nil, errors.New("cbor: invalid ByteStringExpectedFormat " + strconv.Itoa(int(opts.ByteStringExpectedFormat))) + } + + if !opts.BignumTag.valid() { + return nil, errors.New("cbor: invalid BignumTag " + strconv.Itoa(int(opts.BignumTag))) + } + + if !opts.BinaryUnmarshaler.valid() { + return nil, errors.New("cbor: invalid BinaryUnmarshaler " + strconv.Itoa(int(opts.BinaryUnmarshaler))) + } + + dm := decMode{ + dupMapKey: opts.DupMapKey, + timeTag: opts.TimeTag, + maxNestedLevels: opts.MaxNestedLevels, + maxArrayElements: opts.MaxArrayElements, + maxMapPairs: opts.MaxMapPairs, + indefLength: opts.IndefLength, + tagsMd: opts.TagsMd, + intDec: opts.IntDec, + mapKeyByteString: opts.MapKeyByteString, + extraReturnErrors: opts.ExtraReturnErrors, + defaultMapType: opts.DefaultMapType, + utf8: opts.UTF8, + fieldNameMatching: opts.FieldNameMatching, + bigIntDec: opts.BigIntDec, + defaultByteStringType: opts.DefaultByteStringType, + byteStringToString: opts.ByteStringToString, + fieldNameByteString: opts.FieldNameByteString, + unrecognizedTagToAny: opts.UnrecognizedTagToAny, + timeTagToAny: opts.TimeTagToAny, + simpleValues: simpleValues, + nanDec: opts.NaN, + infDec: opts.Inf, + byteStringToTime: opts.ByteStringToTime, + byteStringExpectedFormat: opts.ByteStringExpectedFormat, + bignumTag: opts.BignumTag, + binaryUnmarshaler: opts.BinaryUnmarshaler, + } + + return &dm, nil +} + +// DecMode is the main interface for CBOR decoding. +type DecMode interface { + // Unmarshal parses the CBOR-encoded data into the value pointed to by v + // using the decoding mode. If v is nil, not a pointer, or a nil pointer, + // Unmarshal returns an error. + // + // See the documentation for Unmarshal for details. + Unmarshal(data []byte, v interface{}) error + + // UnmarshalFirst parses the first CBOR data item into the value pointed to by v + // using the decoding mode. Any remaining bytes are returned in rest. + // + // If v is nil, not a pointer, or a nil pointer, UnmarshalFirst returns an error. + // + // See the documentation for Unmarshal for details. + UnmarshalFirst(data []byte, v interface{}) (rest []byte, err error) + + // Valid checks whether data is a well-formed encoded CBOR data item and + // that it complies with configurable restrictions such as MaxNestedLevels, + // MaxArrayElements, MaxMapPairs, etc. + // + // If there are any remaining bytes after the CBOR data item, + // an ExtraneousDataError is returned. + // + // WARNING: Valid doesn't check if encoded CBOR data item is valid (i.e. validity) + // and RFC 8949 distinctly defines what is "Valid" and what is "Well-formed". + // + // Deprecated: Valid is kept for compatibility and should not be used. + // Use Wellformed instead because it has a more appropriate name. + Valid(data []byte) error + + // Wellformed checks whether data is a well-formed encoded CBOR data item and + // that it complies with configurable restrictions such as MaxNestedLevels, + // MaxArrayElements, MaxMapPairs, etc. + // + // If there are any remaining bytes after the CBOR data item, + // an ExtraneousDataError is returned. + Wellformed(data []byte) error + + // NewDecoder returns a new decoder that reads from r using dm DecMode. + NewDecoder(r io.Reader) *Decoder + + // DecOptions returns user specified options used to create this DecMode. + DecOptions() DecOptions +} + +type decMode struct { + tags tagProvider + dupMapKey DupMapKeyMode + timeTag DecTagMode + maxNestedLevels int + maxArrayElements int + maxMapPairs int + indefLength IndefLengthMode + tagsMd TagsMode + intDec IntDecMode + mapKeyByteString MapKeyByteStringMode + extraReturnErrors ExtraDecErrorCond + defaultMapType reflect.Type + utf8 UTF8Mode + fieldNameMatching FieldNameMatchingMode + bigIntDec BigIntDecMode + defaultByteStringType reflect.Type + byteStringToString ByteStringToStringMode + fieldNameByteString FieldNameByteStringMode + unrecognizedTagToAny UnrecognizedTagToAnyMode + timeTagToAny TimeTagToAnyMode + simpleValues *SimpleValueRegistry + nanDec NaNMode + infDec InfMode + byteStringToTime ByteStringToTimeMode + byteStringExpectedFormat ByteStringExpectedFormatMode + bignumTag BignumTagMode + binaryUnmarshaler BinaryUnmarshalerMode +} + +var defaultDecMode, _ = DecOptions{}.decMode() + +// DecOptions returns user specified options used to create this DecMode. +func (dm *decMode) DecOptions() DecOptions { + simpleValues := dm.simpleValues + if simpleValues == defaultSimpleValues { + // Users can't explicitly set this to defaultSimpleValues. It must have been nil in + // the original DecOptions. + simpleValues = nil + } + + return DecOptions{ + DupMapKey: dm.dupMapKey, + TimeTag: dm.timeTag, + MaxNestedLevels: dm.maxNestedLevels, + MaxArrayElements: dm.maxArrayElements, + MaxMapPairs: dm.maxMapPairs, + IndefLength: dm.indefLength, + TagsMd: dm.tagsMd, + IntDec: dm.intDec, + MapKeyByteString: dm.mapKeyByteString, + ExtraReturnErrors: dm.extraReturnErrors, + DefaultMapType: dm.defaultMapType, + UTF8: dm.utf8, + FieldNameMatching: dm.fieldNameMatching, + BigIntDec: dm.bigIntDec, + DefaultByteStringType: dm.defaultByteStringType, + ByteStringToString: dm.byteStringToString, + FieldNameByteString: dm.fieldNameByteString, + UnrecognizedTagToAny: dm.unrecognizedTagToAny, + TimeTagToAny: dm.timeTagToAny, + SimpleValues: simpleValues, + NaN: dm.nanDec, + Inf: dm.infDec, + ByteStringToTime: dm.byteStringToTime, + ByteStringExpectedFormat: dm.byteStringExpectedFormat, + BignumTag: dm.bignumTag, + BinaryUnmarshaler: dm.binaryUnmarshaler, + } +} + +// Unmarshal parses the CBOR-encoded data into the value pointed to by v +// using dm decoding mode. If v is nil, not a pointer, or a nil pointer, +// Unmarshal returns an error. +// +// See the documentation for Unmarshal for details. +func (dm *decMode) Unmarshal(data []byte, v interface{}) error { + d := decoder{data: data, dm: dm} + + // Check well-formedness. + off := d.off // Save offset before data validation + err := d.wellformed(false, false) // don't allow any extra data after valid data item. + d.off = off // Restore offset + if err != nil { + return err + } + + return d.value(v) +} + +// UnmarshalFirst parses the first CBOR data item into the value pointed to by v +// using dm decoding mode. Any remaining bytes are returned in rest. +// +// If v is nil, not a pointer, or a nil pointer, UnmarshalFirst returns an error. +// +// See the documentation for Unmarshal for details. +func (dm *decMode) UnmarshalFirst(data []byte, v interface{}) (rest []byte, err error) { + d := decoder{data: data, dm: dm} + + // check well-formedness. + off := d.off // Save offset before data validation + err = d.wellformed(true, false) // allow extra data after well-formed data item + d.off = off // Restore offset + + // If it is well-formed, parse the value. This is structured like this to allow + // better test coverage + if err == nil { + err = d.value(v) + } + + // If either wellformed or value returned an error, do not return rest bytes + if err != nil { + return nil, err + } + + // Return the rest of the data slice (which might be len 0) + return d.data[d.off:], nil +} + +// Valid checks whether data is a well-formed encoded CBOR data item and +// that it complies with configurable restrictions such as MaxNestedLevels, +// MaxArrayElements, MaxMapPairs, etc. +// +// If there are any remaining bytes after the CBOR data item, +// an ExtraneousDataError is returned. +// +// WARNING: Valid doesn't check if encoded CBOR data item is valid (i.e. validity) +// and RFC 8949 distinctly defines what is "Valid" and what is "Well-formed". +// +// Deprecated: Valid is kept for compatibility and should not be used. +// Use Wellformed instead because it has a more appropriate name. +func (dm *decMode) Valid(data []byte) error { + return dm.Wellformed(data) +} + +// Wellformed checks whether data is a well-formed encoded CBOR data item and +// that it complies with configurable restrictions such as MaxNestedLevels, +// MaxArrayElements, MaxMapPairs, etc. +// +// If there are any remaining bytes after the CBOR data item, +// an ExtraneousDataError is returned. +func (dm *decMode) Wellformed(data []byte) error { + d := decoder{data: data, dm: dm} + return d.wellformed(false, false) +} + +// NewDecoder returns a new decoder that reads from r using dm DecMode. +func (dm *decMode) NewDecoder(r io.Reader) *Decoder { + return &Decoder{r: r, d: decoder{dm: dm}} +} + +type decoder struct { + data []byte + off int // next read offset in data + dm *decMode + + // expectedLaterEncodingTags stores a stack of encountered "Expected Later Encoding" tags, + // if any. + // + // The "Expected Later Encoding" tags (21 to 23) are valid for any data item. When decoding + // byte strings, the effective encoding comes from the tag nearest to the byte string being + // decoded. For example, the effective encoding of the byte string 21(22(h'41')) would be + // controlled by tag 22,and in the data item 23(h'42', 22([21(h'43')])]) the effective + // encoding of the byte strings h'42' and h'43' would be controlled by tag 23 and 21, + // respectively. + expectedLaterEncodingTags []uint64 +} + +// value decodes CBOR data item into the value pointed to by v. +// If CBOR data item fails to be decoded into v, +// error is returned and offset is moved to the next CBOR data item. +// Precondition: d.data contains at least one well-formed CBOR data item. +func (d *decoder) value(v interface{}) error { + // v can't be nil, non-pointer, or nil pointer value. + if v == nil { + return &InvalidUnmarshalError{"cbor: Unmarshal(nil)"} + } + rv := reflect.ValueOf(v) + if rv.Kind() != reflect.Ptr { + return &InvalidUnmarshalError{"cbor: Unmarshal(non-pointer " + rv.Type().String() + ")"} + } else if rv.IsNil() { + return &InvalidUnmarshalError{"cbor: Unmarshal(nil " + rv.Type().String() + ")"} + } + rv = rv.Elem() + return d.parseToValue(rv, getTypeInfo(rv.Type())) +} + +// parseToValue decodes CBOR data to value. It assumes data is well-formed, +// and does not perform bounds checking. +func (d *decoder) parseToValue(v reflect.Value, tInfo *typeInfo) error { //nolint:gocyclo + + // Decode CBOR nil or CBOR undefined to pointer value by setting pointer value to nil. + if d.nextCBORNil() && v.Kind() == reflect.Ptr { + d.skip() + v.Set(reflect.Zero(v.Type())) + return nil + } + + if tInfo.spclType == specialTypeIface { + if !v.IsNil() { + // Use value type + v = v.Elem() + tInfo = getTypeInfo(v.Type()) + } else { //nolint:gocritic + // Create and use registered type if CBOR data is registered tag + if d.dm.tags != nil && d.nextCBORType() == cborTypeTag { + + off := d.off + var tagNums []uint64 + for d.nextCBORType() == cborTypeTag { + _, _, tagNum := d.getHead() + tagNums = append(tagNums, tagNum) + } + d.off = off + + registeredType := d.dm.tags.getTypeFromTagNum(tagNums) + if registeredType != nil { + if registeredType.Implements(tInfo.nonPtrType) || + reflect.PtrTo(registeredType).Implements(tInfo.nonPtrType) { + v.Set(reflect.New(registeredType)) + v = v.Elem() + tInfo = getTypeInfo(registeredType) + } + } + } + } + } + + // Create new value for the pointer v to point to. + // At this point, CBOR value is not nil/undefined if v is a pointer. + for v.Kind() == reflect.Ptr { + if v.IsNil() { + if !v.CanSet() { + d.skip() + return errors.New("cbor: cannot set new value for " + v.Type().String()) + } + v.Set(reflect.New(v.Type().Elem())) + } + v = v.Elem() + } + + // Strip self-described CBOR tag number. + for d.nextCBORType() == cborTypeTag { + off := d.off + _, _, tagNum := d.getHead() + if tagNum != tagNumSelfDescribedCBOR { + d.off = off + break + } + } + + // Check validity of supported built-in tags. + off := d.off + for d.nextCBORType() == cborTypeTag { + _, _, tagNum := d.getHead() + if err := validBuiltinTag(tagNum, d.data[d.off]); err != nil { + d.skip() + return err + } + } + d.off = off + + if tInfo.spclType != specialTypeNone { + switch tInfo.spclType { + case specialTypeEmptyIface: + iv, err := d.parse(false) // Skipped self-described CBOR tag number already. + if iv != nil { + v.Set(reflect.ValueOf(iv)) + } + return err + + case specialTypeTag: + return d.parseToTag(v) + + case specialTypeTime: + if d.nextCBORNil() { + // Decoding CBOR null and undefined to time.Time is no-op. + d.skip() + return nil + } + tm, ok, err := d.parseToTime() + if err != nil { + return err + } + if ok { + v.Set(reflect.ValueOf(tm)) + } + return nil + + case specialTypeUnmarshalerIface: + return d.parseToUnmarshaler(v) + } + } + + // Check registered tag number + if tagItem := d.getRegisteredTagItem(tInfo.nonPtrType); tagItem != nil { + t := d.nextCBORType() + if t != cborTypeTag { + if tagItem.opts.DecTag == DecTagRequired { + d.skip() // Required tag number is absent, skip entire tag + return &UnmarshalTypeError{ + CBORType: t.String(), + GoType: tInfo.typ.String(), + errorMsg: "expect CBOR tag value"} + } + } else if err := d.validRegisteredTagNums(tagItem); err != nil { + d.skip() // Skip tag content + return err + } + } + + t := d.nextCBORType() + + switch t { + case cborTypePositiveInt: + _, _, val := d.getHead() + return fillPositiveInt(t, val, v) + + case cborTypeNegativeInt: + _, _, val := d.getHead() + if val > math.MaxInt64 { + // CBOR negative integer overflows int64, use big.Int to store value. + bi := new(big.Int) + bi.SetUint64(val) + bi.Add(bi, big.NewInt(1)) + bi.Neg(bi) + + if tInfo.nonPtrType == typeBigInt { + v.Set(reflect.ValueOf(*bi)) + return nil + } + return &UnmarshalTypeError{ + CBORType: t.String(), + GoType: tInfo.nonPtrType.String(), + errorMsg: bi.String() + " overflows Go's int64", + } + } + nValue := int64(-1) ^ int64(val) + return fillNegativeInt(t, nValue, v) + + case cborTypeByteString: + b, copied := d.parseByteString() + b, converted, err := d.applyByteStringTextConversion(b, v.Type()) + if err != nil { + return err + } + copied = copied || converted + return fillByteString(t, b, !copied, v, d.dm.byteStringToString, d.dm.binaryUnmarshaler) + + case cborTypeTextString: + b, err := d.parseTextString() + if err != nil { + return err + } + return fillTextString(t, b, v) + + case cborTypePrimitives: + _, ai, val := d.getHead() + switch ai { + case additionalInformationAsFloat16: + f := float64(float16.Frombits(uint16(val)).Float32()) + return fillFloat(t, f, v) + + case additionalInformationAsFloat32: + f := float64(math.Float32frombits(uint32(val))) + return fillFloat(t, f, v) + + case additionalInformationAsFloat64: + f := math.Float64frombits(val) + return fillFloat(t, f, v) + + default: // ai <= 24 + if d.dm.simpleValues.rejected[SimpleValue(val)] { + return &UnacceptableDataItemError{ + CBORType: t.String(), + Message: "simple value " + strconv.FormatInt(int64(val), 10) + " is not recognized", + } + } + + switch ai { + case additionalInformationAsFalse, + additionalInformationAsTrue: + return fillBool(t, ai == additionalInformationAsTrue, v) + + case additionalInformationAsNull, + additionalInformationAsUndefined: + return fillNil(t, v) + + default: + return fillPositiveInt(t, val, v) + } + } + + case cborTypeTag: + _, _, tagNum := d.getHead() + switch tagNum { + case tagNumUnsignedBignum: + // Bignum (tag 2) can be decoded to uint, int, float, slice, array, or big.Int. + b, copied := d.parseByteString() + bi := new(big.Int).SetBytes(b) + + if tInfo.nonPtrType == typeBigInt { + v.Set(reflect.ValueOf(*bi)) + return nil + } + if tInfo.nonPtrKind == reflect.Slice || tInfo.nonPtrKind == reflect.Array { + return fillByteString(t, b, !copied, v, ByteStringToStringForbidden, d.dm.binaryUnmarshaler) + } + if bi.IsUint64() { + return fillPositiveInt(t, bi.Uint64(), v) + } + return &UnmarshalTypeError{ + CBORType: t.String(), + GoType: tInfo.nonPtrType.String(), + errorMsg: bi.String() + " overflows " + v.Type().String(), + } + + case tagNumNegativeBignum: + // Bignum (tag 3) can be decoded to int, float, slice, array, or big.Int. + b, copied := d.parseByteString() + bi := new(big.Int).SetBytes(b) + bi.Add(bi, big.NewInt(1)) + bi.Neg(bi) + + if tInfo.nonPtrType == typeBigInt { + v.Set(reflect.ValueOf(*bi)) + return nil + } + if tInfo.nonPtrKind == reflect.Slice || tInfo.nonPtrKind == reflect.Array { + return fillByteString(t, b, !copied, v, ByteStringToStringForbidden, d.dm.binaryUnmarshaler) + } + if bi.IsInt64() { + return fillNegativeInt(t, bi.Int64(), v) + } + return &UnmarshalTypeError{ + CBORType: t.String(), + GoType: tInfo.nonPtrType.String(), + errorMsg: bi.String() + " overflows " + v.Type().String(), + } + + case tagNumExpectedLaterEncodingBase64URL, tagNumExpectedLaterEncodingBase64, tagNumExpectedLaterEncodingBase16: + // If conversion for interoperability with text encodings is not configured, + // treat tags 21-23 as unregistered tags. + if d.dm.byteStringToString == ByteStringToStringAllowedWithExpectedLaterEncoding || d.dm.byteStringExpectedFormat != ByteStringExpectedFormatNone { + d.expectedLaterEncodingTags = append(d.expectedLaterEncodingTags, tagNum) + defer func() { + d.expectedLaterEncodingTags = d.expectedLaterEncodingTags[:len(d.expectedLaterEncodingTags)-1] + }() + } + } + + return d.parseToValue(v, tInfo) + + case cborTypeArray: + if tInfo.nonPtrKind == reflect.Slice { + return d.parseArrayToSlice(v, tInfo) + } else if tInfo.nonPtrKind == reflect.Array { + return d.parseArrayToArray(v, tInfo) + } else if tInfo.nonPtrKind == reflect.Struct { + return d.parseArrayToStruct(v, tInfo) + } + d.skip() + return &UnmarshalTypeError{CBORType: t.String(), GoType: tInfo.nonPtrType.String()} + + case cborTypeMap: + if tInfo.nonPtrKind == reflect.Struct { + return d.parseMapToStruct(v, tInfo) + } else if tInfo.nonPtrKind == reflect.Map { + return d.parseMapToMap(v, tInfo) + } + d.skip() + return &UnmarshalTypeError{CBORType: t.String(), GoType: tInfo.nonPtrType.String()} + } + + return nil +} + +func (d *decoder) parseToTag(v reflect.Value) error { + if d.nextCBORNil() { + // Decoding CBOR null and undefined to cbor.Tag is no-op. + d.skip() + return nil + } + + t := d.nextCBORType() + if t != cborTypeTag { + d.skip() + return &UnmarshalTypeError{CBORType: t.String(), GoType: typeTag.String()} + } + + // Unmarshal tag number + _, _, num := d.getHead() + + // Unmarshal tag content + content, err := d.parse(false) + if err != nil { + return err + } + + v.Set(reflect.ValueOf(Tag{num, content})) + return nil +} + +// parseToTime decodes the current data item as a time.Time. The bool return value is false if and +// only if the destination value should remain unmodified. +func (d *decoder) parseToTime() (time.Time, bool, error) { + // Verify that tag number or absence of tag number is acceptable to specified timeTag. + if t := d.nextCBORType(); t == cborTypeTag { + if d.dm.timeTag == DecTagIgnored { + // Skip all enclosing tags + for t == cborTypeTag { + d.getHead() + t = d.nextCBORType() + } + if d.nextCBORNil() { + d.skip() + return time.Time{}, false, nil + } + } else { + // Read tag number + _, _, tagNum := d.getHead() + if tagNum != 0 && tagNum != 1 { + d.skip() // skip tag content + return time.Time{}, false, errors.New("cbor: wrong tag number for time.Time, got " + strconv.Itoa(int(tagNum)) + ", expect 0 or 1") + } + } + } else { + if d.dm.timeTag == DecTagRequired { + d.skip() + return time.Time{}, false, &UnmarshalTypeError{CBORType: t.String(), GoType: typeTime.String(), errorMsg: "expect CBOR tag value"} + } + } + + switch t := d.nextCBORType(); t { + case cborTypeByteString: + if d.dm.byteStringToTime == ByteStringToTimeAllowed { + b, _ := d.parseByteString() + t, err := time.Parse(time.RFC3339, string(b)) + if err != nil { + return time.Time{}, false, fmt.Errorf("cbor: cannot set %q for time.Time: %w", string(b), err) + } + return t, true, nil + } + return time.Time{}, false, &UnmarshalTypeError{CBORType: t.String(), GoType: typeTime.String()} + + case cborTypeTextString: + s, err := d.parseTextString() + if err != nil { + return time.Time{}, false, err + } + t, err := time.Parse(time.RFC3339, string(s)) + if err != nil { + return time.Time{}, false, errors.New("cbor: cannot set " + string(s) + " for time.Time: " + err.Error()) + } + return t, true, nil + + case cborTypePositiveInt: + _, _, val := d.getHead() + if val > math.MaxInt64 { + return time.Time{}, false, &UnmarshalTypeError{ + CBORType: t.String(), + GoType: typeTime.String(), + errorMsg: fmt.Sprintf("%d overflows Go's int64", val), + } + } + return time.Unix(int64(val), 0), true, nil + + case cborTypeNegativeInt: + _, _, val := d.getHead() + if val > math.MaxInt64 { + if val == math.MaxUint64 { + // Maximum absolute value representable by negative integer is 2^64, + // not 2^64-1, so it overflows uint64. + return time.Time{}, false, &UnmarshalTypeError{ + CBORType: t.String(), + GoType: typeTime.String(), + errorMsg: "-18446744073709551616 overflows Go's int64", + } + } + return time.Time{}, false, &UnmarshalTypeError{ + CBORType: t.String(), + GoType: typeTime.String(), + errorMsg: fmt.Sprintf("-%d overflows Go's int64", val+1), + } + } + return time.Unix(int64(-1)^int64(val), 0), true, nil + + case cborTypePrimitives: + _, ai, val := d.getHead() + var f float64 + switch ai { + case additionalInformationAsFloat16: + f = float64(float16.Frombits(uint16(val)).Float32()) + + case additionalInformationAsFloat32: + f = float64(math.Float32frombits(uint32(val))) + + case additionalInformationAsFloat64: + f = math.Float64frombits(val) + + default: + return time.Time{}, false, &UnmarshalTypeError{CBORType: t.String(), GoType: typeTime.String()} + } + + if math.IsNaN(f) || math.IsInf(f, 0) { + // https://www.rfc-editor.org/rfc/rfc8949.html#section-3.4.2-6 + return time.Time{}, true, nil + } + seconds, fractional := math.Modf(f) + return time.Unix(int64(seconds), int64(fractional*1e9)), true, nil + + default: + return time.Time{}, false, &UnmarshalTypeError{CBORType: t.String(), GoType: typeTime.String()} + } +} + +// parseToUnmarshaler parses CBOR data to value implementing Unmarshaler interface. +// It assumes data is well-formed, and does not perform bounds checking. +func (d *decoder) parseToUnmarshaler(v reflect.Value) error { + if d.nextCBORNil() && v.Kind() == reflect.Ptr && v.IsNil() { + d.skip() + return nil + } + + if v.Kind() != reflect.Ptr && v.CanAddr() { + v = v.Addr() + } + if u, ok := v.Interface().(Unmarshaler); ok { + start := d.off + d.skip() + return u.UnmarshalCBOR(d.data[start:d.off]) + } + d.skip() + return errors.New("cbor: failed to assert " + v.Type().String() + " as cbor.Unmarshaler") +} + +// parse parses CBOR data and returns value in default Go type. +// It assumes data is well-formed, and does not perform bounds checking. +func (d *decoder) parse(skipSelfDescribedTag bool) (interface{}, error) { //nolint:gocyclo + // Strip self-described CBOR tag number. + if skipSelfDescribedTag { + for d.nextCBORType() == cborTypeTag { + off := d.off + _, _, tagNum := d.getHead() + if tagNum != tagNumSelfDescribedCBOR { + d.off = off + break + } + } + } + + // Check validity of supported built-in tags. + off := d.off + for d.nextCBORType() == cborTypeTag { + _, _, tagNum := d.getHead() + if err := validBuiltinTag(tagNum, d.data[d.off]); err != nil { + d.skip() + return nil, err + } + } + d.off = off + + t := d.nextCBORType() + switch t { + case cborTypePositiveInt: + _, _, val := d.getHead() + + switch d.dm.intDec { + case IntDecConvertNone: + return val, nil + + case IntDecConvertSigned, IntDecConvertSignedOrFail: + if val > math.MaxInt64 { + return nil, &UnmarshalTypeError{ + CBORType: t.String(), + GoType: reflect.TypeOf(int64(0)).String(), + errorMsg: strconv.FormatUint(val, 10) + " overflows Go's int64", + } + } + + return int64(val), nil + + case IntDecConvertSignedOrBigInt: + if val > math.MaxInt64 { + bi := new(big.Int).SetUint64(val) + if d.dm.bigIntDec == BigIntDecodePointer { + return bi, nil + } + return *bi, nil + } + + return int64(val), nil + + default: + // not reachable + } + + case cborTypeNegativeInt: + _, _, val := d.getHead() + + if val > math.MaxInt64 { + // CBOR negative integer value overflows Go int64, use big.Int instead. + bi := new(big.Int).SetUint64(val) + bi.Add(bi, big.NewInt(1)) + bi.Neg(bi) + + if d.dm.intDec == IntDecConvertSignedOrFail { + return nil, &UnmarshalTypeError{ + CBORType: t.String(), + GoType: reflect.TypeOf(int64(0)).String(), + errorMsg: bi.String() + " overflows Go's int64", + } + } + + if d.dm.bigIntDec == BigIntDecodePointer { + return bi, nil + } + return *bi, nil + } + + nValue := int64(-1) ^ int64(val) + return nValue, nil + + case cborTypeByteString: + b, copied := d.parseByteString() + var effectiveByteStringType = d.dm.defaultByteStringType + if effectiveByteStringType == nil { + effectiveByteStringType = typeByteSlice + } + b, converted, err := d.applyByteStringTextConversion(b, effectiveByteStringType) + if err != nil { + return nil, err + } + copied = copied || converted + + switch effectiveByteStringType { + case typeByteSlice: + if copied { + return b, nil + } + clone := make([]byte, len(b)) + copy(clone, b) + return clone, nil + + case typeString: + return string(b), nil + + default: + if copied || d.dm.defaultByteStringType.Kind() == reflect.String { + // Avoid an unnecessary copy since the conversion to string must + // copy the underlying bytes. + return reflect.ValueOf(b).Convert(d.dm.defaultByteStringType).Interface(), nil + } + clone := make([]byte, len(b)) + copy(clone, b) + return reflect.ValueOf(clone).Convert(d.dm.defaultByteStringType).Interface(), nil + } + + case cborTypeTextString: + b, err := d.parseTextString() + if err != nil { + return nil, err + } + return string(b), nil + + case cborTypeTag: + tagOff := d.off + _, _, tagNum := d.getHead() + contentOff := d.off + + switch tagNum { + case tagNumRFC3339Time, tagNumEpochTime: + d.off = tagOff + tm, _, err := d.parseToTime() + if err != nil { + return nil, err + } + + switch d.dm.timeTagToAny { + case TimeTagToTime: + return tm, nil + + case TimeTagToRFC3339: + if tagNum == 1 { + tm = tm.UTC() + } + // Call time.MarshalText() to format decoded time to RFC3339 format, + // and return error on time value that cannot be represented in + // RFC3339 format. E.g. year cannot exceed 9999, etc. + text, err := tm.Truncate(time.Second).MarshalText() + if err != nil { + return nil, fmt.Errorf("cbor: decoded time cannot be represented in RFC3339 format: %v", err) + } + return string(text), nil + + case TimeTagToRFC3339Nano: + if tagNum == 1 { + tm = tm.UTC() + } + // Call time.MarshalText() to format decoded time to RFC3339 format, + // and return error on time value that cannot be represented in + // RFC3339 format with sub-second precision. + text, err := tm.MarshalText() + if err != nil { + return nil, fmt.Errorf("cbor: decoded time cannot be represented in RFC3339 format with sub-second precision: %v", err) + } + return string(text), nil + + default: + // not reachable + } + + case tagNumUnsignedBignum: + b, _ := d.parseByteString() + bi := new(big.Int).SetBytes(b) + + if d.dm.bigIntDec == BigIntDecodePointer { + return bi, nil + } + return *bi, nil + + case tagNumNegativeBignum: + b, _ := d.parseByteString() + bi := new(big.Int).SetBytes(b) + bi.Add(bi, big.NewInt(1)) + bi.Neg(bi) + + if d.dm.bigIntDec == BigIntDecodePointer { + return bi, nil + } + return *bi, nil + + case tagNumExpectedLaterEncodingBase64URL, tagNumExpectedLaterEncodingBase64, tagNumExpectedLaterEncodingBase16: + // If conversion for interoperability with text encodings is not configured, + // treat tags 21-23 as unregistered tags. + if d.dm.byteStringToString == ByteStringToStringAllowedWithExpectedLaterEncoding || + d.dm.byteStringExpectedFormat != ByteStringExpectedFormatNone { + d.expectedLaterEncodingTags = append(d.expectedLaterEncodingTags, tagNum) + defer func() { + d.expectedLaterEncodingTags = d.expectedLaterEncodingTags[:len(d.expectedLaterEncodingTags)-1] + }() + return d.parse(false) + } + } + + if d.dm.tags != nil { + // Parse to specified type if tag number is registered. + tagNums := []uint64{tagNum} + for d.nextCBORType() == cborTypeTag { + _, _, num := d.getHead() + tagNums = append(tagNums, num) + } + registeredType := d.dm.tags.getTypeFromTagNum(tagNums) + if registeredType != nil { + d.off = tagOff + rv := reflect.New(registeredType) + if err := d.parseToValue(rv.Elem(), getTypeInfo(registeredType)); err != nil { + return nil, err + } + return rv.Elem().Interface(), nil + } + } + + // Parse tag content + d.off = contentOff + content, err := d.parse(false) + if err != nil { + return nil, err + } + if d.dm.unrecognizedTagToAny == UnrecognizedTagContentToAny { + return content, nil + } + return Tag{tagNum, content}, nil + + case cborTypePrimitives: + _, ai, val := d.getHead() + if ai <= 24 && d.dm.simpleValues.rejected[SimpleValue(val)] { + return nil, &UnacceptableDataItemError{ + CBORType: t.String(), + Message: "simple value " + strconv.FormatInt(int64(val), 10) + " is not recognized", + } + } + if ai < 20 || ai == 24 { + return SimpleValue(val), nil + } + + switch ai { + case additionalInformationAsFalse, + additionalInformationAsTrue: + return (ai == additionalInformationAsTrue), nil + + case additionalInformationAsNull, + additionalInformationAsUndefined: + return nil, nil + + case additionalInformationAsFloat16: + f := float64(float16.Frombits(uint16(val)).Float32()) + return f, nil + + case additionalInformationAsFloat32: + f := float64(math.Float32frombits(uint32(val))) + return f, nil + + case additionalInformationAsFloat64: + f := math.Float64frombits(val) + return f, nil + } + + case cborTypeArray: + return d.parseArray() + + case cborTypeMap: + if d.dm.defaultMapType != nil { + m := reflect.New(d.dm.defaultMapType) + err := d.parseToValue(m, getTypeInfo(m.Elem().Type())) + if err != nil { + return nil, err + } + return m.Elem().Interface(), nil + } + return d.parseMap() + } + + return nil, nil +} + +// parseByteString parses a CBOR encoded byte string. The returned byte slice +// may be backed directly by the input. The second return value will be true if +// and only if the slice is backed by a copy of the input. Callers are +// responsible for making a copy if necessary. +func (d *decoder) parseByteString() ([]byte, bool) { + _, _, val, indefiniteLength := d.getHeadWithIndefiniteLengthFlag() + if !indefiniteLength { + b := d.data[d.off : d.off+int(val)] + d.off += int(val) + return b, false + } + // Process indefinite length string chunks. + b := []byte{} + for !d.foundBreak() { + _, _, val = d.getHead() + b = append(b, d.data[d.off:d.off+int(val)]...) + d.off += int(val) + } + return b, true +} + +// applyByteStringTextConversion converts bytes read from a byte string to or from a configured text +// encoding. If no transformation was performed (because it was not required), the original byte +// slice is returned and the bool return value is false. Otherwise, a new slice containing the +// converted bytes is returned along with the bool value true. +func (d *decoder) applyByteStringTextConversion( + src []byte, + dstType reflect.Type, +) ( + dst []byte, + transformed bool, + err error, +) { + switch dstType.Kind() { + case reflect.String: + if d.dm.byteStringToString != ByteStringToStringAllowedWithExpectedLaterEncoding || len(d.expectedLaterEncodingTags) == 0 { + return src, false, nil + } + + switch d.expectedLaterEncodingTags[len(d.expectedLaterEncodingTags)-1] { + case tagNumExpectedLaterEncodingBase64URL: + encoded := make([]byte, base64.RawURLEncoding.EncodedLen(len(src))) + base64.RawURLEncoding.Encode(encoded, src) + return encoded, true, nil + + case tagNumExpectedLaterEncodingBase64: + encoded := make([]byte, base64.StdEncoding.EncodedLen(len(src))) + base64.StdEncoding.Encode(encoded, src) + return encoded, true, nil + + case tagNumExpectedLaterEncodingBase16: + encoded := make([]byte, hex.EncodedLen(len(src))) + hex.Encode(encoded, src) + return encoded, true, nil + + default: + // If this happens, there is a bug: the decoder has pushed an invalid + // "expected later encoding" tag to the stack. + panic(fmt.Sprintf("unrecognized expected later encoding tag: %d", d.expectedLaterEncodingTags)) + } + + case reflect.Slice: + if dstType.Elem().Kind() != reflect.Uint8 || len(d.expectedLaterEncodingTags) > 0 { + // Either the destination is not a slice of bytes, or the encoder that + // produced the input indicated an expected text encoding tag and therefore + // the content of the byte string has NOT been text encoded. + return src, false, nil + } + + switch d.dm.byteStringExpectedFormat { + case ByteStringExpectedBase64URL: + decoded := make([]byte, base64.RawURLEncoding.DecodedLen(len(src))) + n, err := base64.RawURLEncoding.Decode(decoded, src) + if err != nil { + return nil, false, newByteStringExpectedFormatError(ByteStringExpectedBase64URL, err) + } + return decoded[:n], true, nil + + case ByteStringExpectedBase64: + decoded := make([]byte, base64.StdEncoding.DecodedLen(len(src))) + n, err := base64.StdEncoding.Decode(decoded, src) + if err != nil { + return nil, false, newByteStringExpectedFormatError(ByteStringExpectedBase64, err) + } + return decoded[:n], true, nil + + case ByteStringExpectedBase16: + decoded := make([]byte, hex.DecodedLen(len(src))) + n, err := hex.Decode(decoded, src) + if err != nil { + return nil, false, newByteStringExpectedFormatError(ByteStringExpectedBase16, err) + } + return decoded[:n], true, nil + } + } + + return src, false, nil +} + +// parseTextString parses CBOR encoded text string. It returns a byte slice +// to prevent creating an extra copy of string. Caller should wrap returned +// byte slice as string when needed. +func (d *decoder) parseTextString() ([]byte, error) { + _, _, val, indefiniteLength := d.getHeadWithIndefiniteLengthFlag() + if !indefiniteLength { + b := d.data[d.off : d.off+int(val)] + d.off += int(val) + if d.dm.utf8 == UTF8RejectInvalid && !utf8.Valid(b) { + return nil, &SemanticError{"cbor: invalid UTF-8 string"} + } + return b, nil + } + // Process indefinite length string chunks. + b := []byte{} + for !d.foundBreak() { + _, _, val = d.getHead() + x := d.data[d.off : d.off+int(val)] + d.off += int(val) + if d.dm.utf8 == UTF8RejectInvalid && !utf8.Valid(x) { + for !d.foundBreak() { + d.skip() // Skip remaining chunk on error + } + return nil, &SemanticError{"cbor: invalid UTF-8 string"} + } + b = append(b, x...) + } + return b, nil +} + +func (d *decoder) parseArray() ([]interface{}, error) { + _, _, val, indefiniteLength := d.getHeadWithIndefiniteLengthFlag() + hasSize := !indefiniteLength + count := int(val) + if !hasSize { + count = d.numOfItemsUntilBreak() // peek ahead to get array size to preallocate slice for better performance + } + v := make([]interface{}, count) + var e interface{} + var err, lastErr error + for i := 0; (hasSize && i < count) || (!hasSize && !d.foundBreak()); i++ { + if e, lastErr = d.parse(true); lastErr != nil { + if err == nil { + err = lastErr + } + continue + } + v[i] = e + } + return v, err +} + +func (d *decoder) parseArrayToSlice(v reflect.Value, tInfo *typeInfo) error { + _, _, val, indefiniteLength := d.getHeadWithIndefiniteLengthFlag() + hasSize := !indefiniteLength + count := int(val) + if !hasSize { + count = d.numOfItemsUntilBreak() // peek ahead to get array size to preallocate slice for better performance + } + if v.IsNil() || v.Cap() < count || count == 0 { + v.Set(reflect.MakeSlice(tInfo.nonPtrType, count, count)) + } + v.SetLen(count) + var err error + for i := 0; (hasSize && i < count) || (!hasSize && !d.foundBreak()); i++ { + if lastErr := d.parseToValue(v.Index(i), tInfo.elemTypeInfo); lastErr != nil { + if err == nil { + err = lastErr + } + } + } + return err +} + +func (d *decoder) parseArrayToArray(v reflect.Value, tInfo *typeInfo) error { + _, _, val, indefiniteLength := d.getHeadWithIndefiniteLengthFlag() + hasSize := !indefiniteLength + count := int(val) + gi := 0 + vLen := v.Len() + var err error + for ci := 0; (hasSize && ci < count) || (!hasSize && !d.foundBreak()); ci++ { + if gi < vLen { + // Read CBOR array element and set array element + if lastErr := d.parseToValue(v.Index(gi), tInfo.elemTypeInfo); lastErr != nil { + if err == nil { + err = lastErr + } + } + gi++ + } else { + d.skip() // Skip remaining CBOR array element + } + } + // Set remaining Go array elements to zero values. + if gi < vLen { + zeroV := reflect.Zero(tInfo.elemTypeInfo.typ) + for ; gi < vLen; gi++ { + v.Index(gi).Set(zeroV) + } + } + return err +} + +func (d *decoder) parseMap() (interface{}, error) { + _, _, val, indefiniteLength := d.getHeadWithIndefiniteLengthFlag() + hasSize := !indefiniteLength + count := int(val) + m := make(map[interface{}]interface{}) + var k, e interface{} + var err, lastErr error + keyCount := 0 + for i := 0; (hasSize && i < count) || (!hasSize && !d.foundBreak()); i++ { + // Parse CBOR map key. + if k, lastErr = d.parse(true); lastErr != nil { + if err == nil { + err = lastErr + } + d.skip() + continue + } + + // Detect if CBOR map key can be used as Go map key. + rv := reflect.ValueOf(k) + if !isHashableValue(rv) { + var converted bool + if d.dm.mapKeyByteString == MapKeyByteStringAllowed { + k, converted = convertByteSliceToByteString(k) + } + if !converted { + if err == nil { + err = &InvalidMapKeyTypeError{rv.Type().String()} + } + d.skip() + continue + } + } + + // Parse CBOR map value. + if e, lastErr = d.parse(true); lastErr != nil { + if err == nil { + err = lastErr + } + continue + } + + // Add key-value pair to Go map. + m[k] = e + + // Detect duplicate map key. + if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + newKeyCount := len(m) + if newKeyCount == keyCount { + m[k] = nil + err = &DupMapKeyError{k, i} + i++ + // skip the rest of the map + for ; (hasSize && i < count) || (!hasSize && !d.foundBreak()); i++ { + d.skip() // Skip map key + d.skip() // Skip map value + } + return m, err + } + keyCount = newKeyCount + } + } + return m, err +} + +func (d *decoder) parseMapToMap(v reflect.Value, tInfo *typeInfo) error { //nolint:gocyclo + _, _, val, indefiniteLength := d.getHeadWithIndefiniteLengthFlag() + hasSize := !indefiniteLength + count := int(val) + if v.IsNil() { + mapsize := count + if !hasSize { + mapsize = 0 + } + v.Set(reflect.MakeMapWithSize(tInfo.nonPtrType, mapsize)) + } + keyType, eleType := tInfo.keyTypeInfo.typ, tInfo.elemTypeInfo.typ + reuseKey, reuseEle := isImmutableKind(tInfo.keyTypeInfo.kind), isImmutableKind(tInfo.elemTypeInfo.kind) + var keyValue, eleValue, zeroKeyValue, zeroEleValue reflect.Value + keyIsInterfaceType := keyType == typeIntf // If key type is interface{}, need to check if key value is hashable. + var err, lastErr error + keyCount := v.Len() + var existingKeys map[interface{}]bool // Store existing map keys, used for detecting duplicate map key. + if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + existingKeys = make(map[interface{}]bool, keyCount) + if keyCount > 0 { + vKeys := v.MapKeys() + for i := 0; i < len(vKeys); i++ { + existingKeys[vKeys[i].Interface()] = true + } + } + } + for i := 0; (hasSize && i < count) || (!hasSize && !d.foundBreak()); i++ { + // Parse CBOR map key. + if !keyValue.IsValid() { + keyValue = reflect.New(keyType).Elem() + } else if !reuseKey { + if !zeroKeyValue.IsValid() { + zeroKeyValue = reflect.Zero(keyType) + } + keyValue.Set(zeroKeyValue) + } + if lastErr = d.parseToValue(keyValue, tInfo.keyTypeInfo); lastErr != nil { + if err == nil { + err = lastErr + } + d.skip() + continue + } + + // Detect if CBOR map key can be used as Go map key. + if keyIsInterfaceType && keyValue.Elem().IsValid() { + if !isHashableValue(keyValue.Elem()) { + var converted bool + if d.dm.mapKeyByteString == MapKeyByteStringAllowed { + var k interface{} + k, converted = convertByteSliceToByteString(keyValue.Elem().Interface()) + if converted { + keyValue.Set(reflect.ValueOf(k)) + } + } + if !converted { + if err == nil { + err = &InvalidMapKeyTypeError{keyValue.Elem().Type().String()} + } + d.skip() + continue + } + } + } + + // Parse CBOR map value. + if !eleValue.IsValid() { + eleValue = reflect.New(eleType).Elem() + } else if !reuseEle { + if !zeroEleValue.IsValid() { + zeroEleValue = reflect.Zero(eleType) + } + eleValue.Set(zeroEleValue) + } + if lastErr := d.parseToValue(eleValue, tInfo.elemTypeInfo); lastErr != nil { + if err == nil { + err = lastErr + } + continue + } + + // Add key-value pair to Go map. + v.SetMapIndex(keyValue, eleValue) + + // Detect duplicate map key. + if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + newKeyCount := v.Len() + if newKeyCount == keyCount { + kvi := keyValue.Interface() + if !existingKeys[kvi] { + v.SetMapIndex(keyValue, reflect.New(eleType).Elem()) + err = &DupMapKeyError{kvi, i} + i++ + // skip the rest of the map + for ; (hasSize && i < count) || (!hasSize && !d.foundBreak()); i++ { + d.skip() // skip map key + d.skip() // skip map value + } + return err + } + delete(existingKeys, kvi) + } + keyCount = newKeyCount + } + } + return err +} + +func (d *decoder) parseArrayToStruct(v reflect.Value, tInfo *typeInfo) error { + structType := getDecodingStructType(tInfo.nonPtrType) + if structType.err != nil { + return structType.err + } + + if !structType.toArray { + t := d.nextCBORType() + d.skip() + return &UnmarshalTypeError{ + CBORType: t.String(), + GoType: tInfo.nonPtrType.String(), + errorMsg: "cannot decode CBOR array to struct without toarray option", + } + } + + start := d.off + _, _, val, indefiniteLength := d.getHeadWithIndefiniteLengthFlag() + hasSize := !indefiniteLength + count := int(val) + if !hasSize { + count = d.numOfItemsUntilBreak() // peek ahead to get array size + } + if count != len(structType.fields) { + d.off = start + d.skip() + return &UnmarshalTypeError{ + CBORType: cborTypeArray.String(), + GoType: tInfo.typ.String(), + errorMsg: "cannot decode CBOR array to struct with different number of elements", + } + } + var err, lastErr error + for i := 0; (hasSize && i < count) || (!hasSize && !d.foundBreak()); i++ { + f := structType.fields[i] + + // Get field value by index + var fv reflect.Value + if len(f.idx) == 1 { + fv = v.Field(f.idx[0]) + } else { + fv, lastErr = getFieldValue(v, f.idx, func(v reflect.Value) (reflect.Value, error) { + // Return a new value for embedded field null pointer to point to, or return error. + if !v.CanSet() { + return reflect.Value{}, errors.New("cbor: cannot set embedded pointer to unexported struct: " + v.Type().String()) + } + v.Set(reflect.New(v.Type().Elem())) + return v, nil + }) + if lastErr != nil && err == nil { + err = lastErr + } + if !fv.IsValid() { + d.skip() + continue + } + } + + if lastErr = d.parseToValue(fv, f.typInfo); lastErr != nil { + if err == nil { + if typeError, ok := lastErr.(*UnmarshalTypeError); ok { + typeError.StructFieldName = tInfo.typ.String() + "." + f.name + err = typeError + } else { + err = lastErr + } + } + } + } + return err +} + +// parseMapToStruct needs to be fast so gocyclo can be ignored for now. +func (d *decoder) parseMapToStruct(v reflect.Value, tInfo *typeInfo) error { //nolint:gocyclo + structType := getDecodingStructType(tInfo.nonPtrType) + if structType.err != nil { + return structType.err + } + + if structType.toArray { + t := d.nextCBORType() + d.skip() + return &UnmarshalTypeError{ + CBORType: t.String(), + GoType: tInfo.nonPtrType.String(), + errorMsg: "cannot decode CBOR map to struct with toarray option", + } + } + + var err, lastErr error + + // Get CBOR map size + _, _, val, indefiniteLength := d.getHeadWithIndefiniteLengthFlag() + hasSize := !indefiniteLength + count := int(val) + + // Keeps track of matched struct fields + var foundFldIdx []bool + { + const maxStackFields = 128 + if nfields := len(structType.fields); nfields <= maxStackFields { + // For structs with typical field counts, expect that this can be + // stack-allocated. + var a [maxStackFields]bool + foundFldIdx = a[:nfields] + } else { + foundFldIdx = make([]bool, len(structType.fields)) + } + } + + // Keeps track of CBOR map keys to detect duplicate map key + keyCount := 0 + var mapKeys map[interface{}]struct{} + + errOnUnknownField := (d.dm.extraReturnErrors & ExtraDecErrorUnknownField) > 0 + +MapEntryLoop: + for j := 0; (hasSize && j < count) || (!hasSize && !d.foundBreak()); j++ { + var f *field + + // If duplicate field detection is enabled and the key at index j did not match any + // field, k will hold the map key. + var k interface{} + + t := d.nextCBORType() + if t == cborTypeTextString || (t == cborTypeByteString && d.dm.fieldNameByteString == FieldNameByteStringAllowed) { + var keyBytes []byte + if t == cborTypeTextString { + keyBytes, lastErr = d.parseTextString() + if lastErr != nil { + if err == nil { + err = lastErr + } + d.skip() // skip value + continue + } + } else { // cborTypeByteString + keyBytes, _ = d.parseByteString() + } + + // Check for exact match on field name. + if i, ok := structType.fieldIndicesByName[string(keyBytes)]; ok { + fld := structType.fields[i] + + if !foundFldIdx[i] { + f = fld + foundFldIdx[i] = true + } else if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + err = &DupMapKeyError{fld.name, j} + d.skip() // skip value + j++ + // skip the rest of the map + for ; (hasSize && j < count) || (!hasSize && !d.foundBreak()); j++ { + d.skip() + d.skip() + } + return err + } else { + // discard repeated match + d.skip() + continue MapEntryLoop + } + } + + // Find field with case-insensitive match + if f == nil && d.dm.fieldNameMatching == FieldNameMatchingPreferCaseSensitive { + keyLen := len(keyBytes) + keyString := string(keyBytes) + for i := 0; i < len(structType.fields); i++ { + fld := structType.fields[i] + if len(fld.name) == keyLen && strings.EqualFold(fld.name, keyString) { + if !foundFldIdx[i] { + f = fld + foundFldIdx[i] = true + } else if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + err = &DupMapKeyError{keyString, j} + d.skip() // skip value + j++ + // skip the rest of the map + for ; (hasSize && j < count) || (!hasSize && !d.foundBreak()); j++ { + d.skip() + d.skip() + } + return err + } else { + // discard repeated match + d.skip() + continue MapEntryLoop + } + break + } + } + } + + if d.dm.dupMapKey == DupMapKeyEnforcedAPF && f == nil { + k = string(keyBytes) + } + } else if t <= cborTypeNegativeInt { // uint/int + var nameAsInt int64 + + if t == cborTypePositiveInt { + _, _, val := d.getHead() + nameAsInt = int64(val) + } else { + _, _, val := d.getHead() + if val > math.MaxInt64 { + if err == nil { + err = &UnmarshalTypeError{ + CBORType: t.String(), + GoType: reflect.TypeOf(int64(0)).String(), + errorMsg: "-1-" + strconv.FormatUint(val, 10) + " overflows Go's int64", + } + } + d.skip() // skip value + continue + } + nameAsInt = int64(-1) ^ int64(val) + } + + // Find field + for i := 0; i < len(structType.fields); i++ { + fld := structType.fields[i] + if fld.keyAsInt && fld.nameAsInt == nameAsInt { + if !foundFldIdx[i] { + f = fld + foundFldIdx[i] = true + } else if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + err = &DupMapKeyError{nameAsInt, j} + d.skip() // skip value + j++ + // skip the rest of the map + for ; (hasSize && j < count) || (!hasSize && !d.foundBreak()); j++ { + d.skip() + d.skip() + } + return err + } else { + // discard repeated match + d.skip() + continue MapEntryLoop + } + break + } + } + + if d.dm.dupMapKey == DupMapKeyEnforcedAPF && f == nil { + k = nameAsInt + } + } else { + if err == nil { + err = &UnmarshalTypeError{ + CBORType: t.String(), + GoType: reflect.TypeOf("").String(), + errorMsg: "map key is of type " + t.String() + " and cannot be used to match struct field name", + } + } + if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + // parse key + k, lastErr = d.parse(true) + if lastErr != nil { + d.skip() // skip value + continue + } + // Detect if CBOR map key can be used as Go map key. + if !isHashableValue(reflect.ValueOf(k)) { + d.skip() // skip value + continue + } + } else { + d.skip() // skip key + } + } + + if f == nil { + if errOnUnknownField { + err = &UnknownFieldError{j} + d.skip() // Skip value + j++ + // skip the rest of the map + for ; (hasSize && j < count) || (!hasSize && !d.foundBreak()); j++ { + d.skip() + d.skip() + } + return err + } + + // Two map keys that match the same struct field are immediately considered + // duplicates. This check detects duplicates between two map keys that do + // not match a struct field. If unknown field errors are enabled, then this + // check is never reached. + if d.dm.dupMapKey == DupMapKeyEnforcedAPF { + if mapKeys == nil { + mapKeys = make(map[interface{}]struct{}, 1) + } + mapKeys[k] = struct{}{} + newKeyCount := len(mapKeys) + if newKeyCount == keyCount { + err = &DupMapKeyError{k, j} + d.skip() // skip value + j++ + // skip the rest of the map + for ; (hasSize && j < count) || (!hasSize && !d.foundBreak()); j++ { + d.skip() + d.skip() + } + return err + } + keyCount = newKeyCount + } + + d.skip() // Skip value + continue + } + + // Get field value by index + var fv reflect.Value + if len(f.idx) == 1 { + fv = v.Field(f.idx[0]) + } else { + fv, lastErr = getFieldValue(v, f.idx, func(v reflect.Value) (reflect.Value, error) { + // Return a new value for embedded field null pointer to point to, or return error. + if !v.CanSet() { + return reflect.Value{}, errors.New("cbor: cannot set embedded pointer to unexported struct: " + v.Type().String()) + } + v.Set(reflect.New(v.Type().Elem())) + return v, nil + }) + if lastErr != nil && err == nil { + err = lastErr + } + if !fv.IsValid() { + d.skip() + continue + } + } + + if lastErr = d.parseToValue(fv, f.typInfo); lastErr != nil { + if err == nil { + if typeError, ok := lastErr.(*UnmarshalTypeError); ok { + typeError.StructFieldName = tInfo.nonPtrType.String() + "." + f.name + err = typeError + } else { + err = lastErr + } + } + } + } + return err +} + +// validRegisteredTagNums verifies that tag numbers match registered tag numbers of type t. +// validRegisteredTagNums assumes next CBOR data type is tag. It scans all tag numbers, and stops at tag content. +func (d *decoder) validRegisteredTagNums(registeredTag *tagItem) error { + // Scan until next cbor data is tag content. + tagNums := make([]uint64, 0, 1) + for d.nextCBORType() == cborTypeTag { + _, _, val := d.getHead() + tagNums = append(tagNums, val) + } + + if !registeredTag.equalTagNum(tagNums) { + return &WrongTagError{registeredTag.contentType, registeredTag.num, tagNums} + } + return nil +} + +func (d *decoder) getRegisteredTagItem(vt reflect.Type) *tagItem { + if d.dm.tags != nil { + return d.dm.tags.getTagItemFromType(vt) + } + return nil +} + +// skip moves data offset to the next item. skip assumes data is well-formed, +// and does not perform bounds checking. +func (d *decoder) skip() { + t, _, val, indefiniteLength := d.getHeadWithIndefiniteLengthFlag() + + if indefiniteLength { + switch t { + case cborTypeByteString, cborTypeTextString, cborTypeArray, cborTypeMap: + for { + if isBreakFlag(d.data[d.off]) { + d.off++ + return + } + d.skip() + } + } + } + + switch t { + case cborTypeByteString, cborTypeTextString: + d.off += int(val) + + case cborTypeArray: + for i := 0; i < int(val); i++ { + d.skip() + } + + case cborTypeMap: + for i := 0; i < int(val)*2; i++ { + d.skip() + } + + case cborTypeTag: + d.skip() + } +} + +func (d *decoder) getHeadWithIndefiniteLengthFlag() ( + t cborType, + ai byte, + val uint64, + indefiniteLength bool, +) { + t, ai, val = d.getHead() + indefiniteLength = additionalInformation(ai).isIndefiniteLength() + return +} + +// getHead assumes data is well-formed, and does not perform bounds checking. +func (d *decoder) getHead() (t cborType, ai byte, val uint64) { + t, ai = parseInitialByte(d.data[d.off]) + val = uint64(ai) + d.off++ + + if ai <= maxAdditionalInformationWithoutArgument { + return + } + + if ai == additionalInformationWith1ByteArgument { + val = uint64(d.data[d.off]) + d.off++ + return + } + + if ai == additionalInformationWith2ByteArgument { + const argumentSize = 2 + val = uint64(binary.BigEndian.Uint16(d.data[d.off : d.off+argumentSize])) + d.off += argumentSize + return + } + + if ai == additionalInformationWith4ByteArgument { + const argumentSize = 4 + val = uint64(binary.BigEndian.Uint32(d.data[d.off : d.off+argumentSize])) + d.off += argumentSize + return + } + + if ai == additionalInformationWith8ByteArgument { + const argumentSize = 8 + val = binary.BigEndian.Uint64(d.data[d.off : d.off+argumentSize]) + d.off += argumentSize + return + } + return +} + +func (d *decoder) numOfItemsUntilBreak() int { + savedOff := d.off + i := 0 + for !d.foundBreak() { + d.skip() + i++ + } + d.off = savedOff + return i +} + +// foundBreak returns true if next byte is CBOR break code and moves cursor by 1, +// otherwise it returns false. +// foundBreak assumes data is well-formed, and does not perform bounds checking. +func (d *decoder) foundBreak() bool { + if isBreakFlag(d.data[d.off]) { + d.off++ + return true + } + return false +} + +func (d *decoder) reset(data []byte) { + d.data = data + d.off = 0 + d.expectedLaterEncodingTags = d.expectedLaterEncodingTags[:0] +} + +func (d *decoder) nextCBORType() cborType { + return getType(d.data[d.off]) +} + +func (d *decoder) nextCBORNil() bool { + return d.data[d.off] == 0xf6 || d.data[d.off] == 0xf7 +} + +var ( + typeIntf = reflect.TypeOf([]interface{}(nil)).Elem() + typeTime = reflect.TypeOf(time.Time{}) + typeBigInt = reflect.TypeOf(big.Int{}) + typeUnmarshaler = reflect.TypeOf((*Unmarshaler)(nil)).Elem() + typeBinaryUnmarshaler = reflect.TypeOf((*encoding.BinaryUnmarshaler)(nil)).Elem() + typeString = reflect.TypeOf("") + typeByteSlice = reflect.TypeOf([]byte(nil)) +) + +func fillNil(_ cborType, v reflect.Value) error { + switch v.Kind() { + case reflect.Slice, reflect.Map, reflect.Interface, reflect.Ptr: + v.Set(reflect.Zero(v.Type())) + return nil + } + return nil +} + +func fillPositiveInt(t cborType, val uint64, v reflect.Value) error { + switch v.Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + if val > math.MaxInt64 { + return &UnmarshalTypeError{ + CBORType: t.String(), + GoType: v.Type().String(), + errorMsg: strconv.FormatUint(val, 10) + " overflows " + v.Type().String(), + } + } + if v.OverflowInt(int64(val)) { + return &UnmarshalTypeError{ + CBORType: t.String(), + GoType: v.Type().String(), + errorMsg: strconv.FormatUint(val, 10) + " overflows " + v.Type().String(), + } + } + v.SetInt(int64(val)) + return nil + + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + if v.OverflowUint(val) { + return &UnmarshalTypeError{ + CBORType: t.String(), + GoType: v.Type().String(), + errorMsg: strconv.FormatUint(val, 10) + " overflows " + v.Type().String(), + } + } + v.SetUint(val) + return nil + + case reflect.Float32, reflect.Float64: + f := float64(val) + v.SetFloat(f) + return nil + } + + if v.Type() == typeBigInt { + i := new(big.Int).SetUint64(val) + v.Set(reflect.ValueOf(*i)) + return nil + } + return &UnmarshalTypeError{CBORType: t.String(), GoType: v.Type().String()} +} + +func fillNegativeInt(t cborType, val int64, v reflect.Value) error { + switch v.Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + if v.OverflowInt(val) { + return &UnmarshalTypeError{ + CBORType: t.String(), + GoType: v.Type().String(), + errorMsg: strconv.FormatInt(val, 10) + " overflows " + v.Type().String(), + } + } + v.SetInt(val) + return nil + + case reflect.Float32, reflect.Float64: + f := float64(val) + v.SetFloat(f) + return nil + } + if v.Type() == typeBigInt { + i := new(big.Int).SetInt64(val) + v.Set(reflect.ValueOf(*i)) + return nil + } + return &UnmarshalTypeError{CBORType: t.String(), GoType: v.Type().String()} +} + +func fillBool(t cborType, val bool, v reflect.Value) error { + if v.Kind() == reflect.Bool { + v.SetBool(val) + return nil + } + return &UnmarshalTypeError{CBORType: t.String(), GoType: v.Type().String()} +} + +func fillFloat(t cborType, val float64, v reflect.Value) error { + switch v.Kind() { + case reflect.Float32, reflect.Float64: + if v.OverflowFloat(val) { + return &UnmarshalTypeError{ + CBORType: t.String(), + GoType: v.Type().String(), + errorMsg: strconv.FormatFloat(val, 'E', -1, 64) + " overflows " + v.Type().String(), + } + } + v.SetFloat(val) + return nil + } + return &UnmarshalTypeError{CBORType: t.String(), GoType: v.Type().String()} +} + +func fillByteString(t cborType, val []byte, shared bool, v reflect.Value, bsts ByteStringToStringMode, bum BinaryUnmarshalerMode) error { + if bum == BinaryUnmarshalerByteString && reflect.PtrTo(v.Type()).Implements(typeBinaryUnmarshaler) { + if v.CanAddr() { + v = v.Addr() + if u, ok := v.Interface().(encoding.BinaryUnmarshaler); ok { + // The contract of BinaryUnmarshaler forbids + // retaining the input bytes, so no copying is + // required even if val is shared. + return u.UnmarshalBinary(val) + } + } + return errors.New("cbor: cannot set new value for " + v.Type().String()) + } + if bsts != ByteStringToStringForbidden && v.Kind() == reflect.String { + v.SetString(string(val)) + return nil + } + if v.Kind() == reflect.Slice && v.Type().Elem().Kind() == reflect.Uint8 { + src := val + if shared { + // SetBytes shares the underlying bytes of the source slice. + src = make([]byte, len(val)) + copy(src, val) + } + v.SetBytes(src) + return nil + } + if v.Kind() == reflect.Array && v.Type().Elem().Kind() == reflect.Uint8 { + vLen := v.Len() + i := 0 + for ; i < vLen && i < len(val); i++ { + v.Index(i).SetUint(uint64(val[i])) + } + // Set remaining Go array elements to zero values. + if i < vLen { + zeroV := reflect.Zero(reflect.TypeOf(byte(0))) + for ; i < vLen; i++ { + v.Index(i).Set(zeroV) + } + } + return nil + } + return &UnmarshalTypeError{CBORType: t.String(), GoType: v.Type().String()} +} + +func fillTextString(t cborType, val []byte, v reflect.Value) error { + if v.Kind() == reflect.String { + v.SetString(string(val)) + return nil + } + return &UnmarshalTypeError{CBORType: t.String(), GoType: v.Type().String()} +} + +func isImmutableKind(k reflect.Kind) bool { + switch k { + case reflect.Bool, + reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, + reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, + reflect.Float32, reflect.Float64, + reflect.String: + return true + + default: + return false + } +} + +func isHashableValue(rv reflect.Value) bool { + switch rv.Kind() { + case reflect.Slice, reflect.Map, reflect.Func: + return false + + case reflect.Struct: + switch rv.Type() { + case typeTag: + tag := rv.Interface().(Tag) + return isHashableValue(reflect.ValueOf(tag.Content)) + case typeBigInt: + return false + } + } + return true +} + +// convertByteSliceToByteString converts []byte to ByteString if +// - v is []byte type, or +// - v is Tag type and tag content type is []byte +// This function also handles nested tags. +// CBOR data is already verified to be well-formed before this function is used, +// so the recursion won't exceed max nested levels. +func convertByteSliceToByteString(v interface{}) (interface{}, bool) { + switch v := v.(type) { + case []byte: + return ByteString(v), true + + case Tag: + content, converted := convertByteSliceToByteString(v.Content) + if converted { + return Tag{Number: v.Number, Content: content}, true + } + } + return v, false +} diff --git a/vendor/github.com/fxamacker/cbor/v2/diagnose.go b/vendor/github.com/fxamacker/cbor/v2/diagnose.go new file mode 100644 index 0000000000000..44afb866089cd --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/diagnose.go @@ -0,0 +1,724 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "bytes" + "encoding/base32" + "encoding/base64" + "encoding/hex" + "errors" + "fmt" + "io" + "math" + "math/big" + "strconv" + "unicode/utf16" + "unicode/utf8" + + "github.com/x448/float16" +) + +// DiagMode is the main interface for CBOR diagnostic notation. +type DiagMode interface { + // Diagnose returns extended diagnostic notation (EDN) of CBOR data items using this DiagMode. + Diagnose([]byte) (string, error) + + // DiagnoseFirst returns extended diagnostic notation (EDN) of the first CBOR data item using the DiagMode. Any remaining bytes are returned in rest. + DiagnoseFirst([]byte) (string, []byte, error) + + // DiagOptions returns user specified options used to create this DiagMode. + DiagOptions() DiagOptions +} + +// ByteStringEncoding specifies the base encoding that byte strings are notated. +type ByteStringEncoding uint8 + +const ( + // ByteStringBase16Encoding encodes byte strings in base16, without padding. + ByteStringBase16Encoding ByteStringEncoding = iota + + // ByteStringBase32Encoding encodes byte strings in base32, without padding. + ByteStringBase32Encoding + + // ByteStringBase32HexEncoding encodes byte strings in base32hex, without padding. + ByteStringBase32HexEncoding + + // ByteStringBase64Encoding encodes byte strings in base64url, without padding. + ByteStringBase64Encoding + + maxByteStringEncoding +) + +func (bse ByteStringEncoding) valid() error { + if bse >= maxByteStringEncoding { + return errors.New("cbor: invalid ByteStringEncoding " + strconv.Itoa(int(bse))) + } + return nil +} + +// DiagOptions specifies Diag options. +type DiagOptions struct { + // ByteStringEncoding specifies the base encoding that byte strings are notated. + // Default is ByteStringBase16Encoding. + ByteStringEncoding ByteStringEncoding + + // ByteStringHexWhitespace specifies notating with whitespace in byte string + // when ByteStringEncoding is ByteStringBase16Encoding. + ByteStringHexWhitespace bool + + // ByteStringText specifies notating with text in byte string + // if it is a valid UTF-8 text. + ByteStringText bool + + // ByteStringEmbeddedCBOR specifies notating embedded CBOR in byte string + // if it is a valid CBOR bytes. + ByteStringEmbeddedCBOR bool + + // CBORSequence specifies notating CBOR sequences. + // otherwise, it returns an error if there are more bytes after the first CBOR. + CBORSequence bool + + // FloatPrecisionIndicator specifies appending a suffix to indicate float precision. + // Refer to https://www.rfc-editor.org/rfc/rfc8949.html#name-encoding-indicators. + FloatPrecisionIndicator bool + + // MaxNestedLevels specifies the max nested levels allowed for any combination of CBOR array, maps, and tags. + // Default is 32 levels and it can be set to [4, 65535]. Note that higher maximum levels of nesting can + // require larger amounts of stack to deserialize. Don't increase this higher than you require. + MaxNestedLevels int + + // MaxArrayElements specifies the max number of elements for CBOR arrays. + // Default is 128*1024=131072 and it can be set to [16, 2147483647] + MaxArrayElements int + + // MaxMapPairs specifies the max number of key-value pairs for CBOR maps. + // Default is 128*1024=131072 and it can be set to [16, 2147483647] + MaxMapPairs int +} + +// DiagMode returns a DiagMode with immutable options. +func (opts DiagOptions) DiagMode() (DiagMode, error) { + return opts.diagMode() +} + +func (opts DiagOptions) diagMode() (*diagMode, error) { + if err := opts.ByteStringEncoding.valid(); err != nil { + return nil, err + } + + decMode, err := DecOptions{ + MaxNestedLevels: opts.MaxNestedLevels, + MaxArrayElements: opts.MaxArrayElements, + MaxMapPairs: opts.MaxMapPairs, + }.decMode() + if err != nil { + return nil, err + } + + return &diagMode{ + byteStringEncoding: opts.ByteStringEncoding, + byteStringHexWhitespace: opts.ByteStringHexWhitespace, + byteStringText: opts.ByteStringText, + byteStringEmbeddedCBOR: opts.ByteStringEmbeddedCBOR, + cborSequence: opts.CBORSequence, + floatPrecisionIndicator: opts.FloatPrecisionIndicator, + decMode: decMode, + }, nil +} + +type diagMode struct { + byteStringEncoding ByteStringEncoding + byteStringHexWhitespace bool + byteStringText bool + byteStringEmbeddedCBOR bool + cborSequence bool + floatPrecisionIndicator bool + decMode *decMode +} + +// DiagOptions returns user specified options used to create this DiagMode. +func (dm *diagMode) DiagOptions() DiagOptions { + return DiagOptions{ + ByteStringEncoding: dm.byteStringEncoding, + ByteStringHexWhitespace: dm.byteStringHexWhitespace, + ByteStringText: dm.byteStringText, + ByteStringEmbeddedCBOR: dm.byteStringEmbeddedCBOR, + CBORSequence: dm.cborSequence, + FloatPrecisionIndicator: dm.floatPrecisionIndicator, + MaxNestedLevels: dm.decMode.maxNestedLevels, + MaxArrayElements: dm.decMode.maxArrayElements, + MaxMapPairs: dm.decMode.maxMapPairs, + } +} + +// Diagnose returns extended diagnostic notation (EDN) of CBOR data items using the DiagMode. +func (dm *diagMode) Diagnose(data []byte) (string, error) { + return newDiagnose(data, dm.decMode, dm).diag(dm.cborSequence) +} + +// DiagnoseFirst returns extended diagnostic notation (EDN) of the first CBOR data item using the DiagMode. Any remaining bytes are returned in rest. +func (dm *diagMode) DiagnoseFirst(data []byte) (diagNotation string, rest []byte, err error) { + return newDiagnose(data, dm.decMode, dm).diagFirst() +} + +var defaultDiagMode, _ = DiagOptions{}.diagMode() + +// Diagnose returns extended diagnostic notation (EDN) of CBOR data items +// using the default diagnostic mode. +// +// Refer to https://www.rfc-editor.org/rfc/rfc8949.html#name-diagnostic-notation. +func Diagnose(data []byte) (string, error) { + return defaultDiagMode.Diagnose(data) +} + +// Diagnose returns extended diagnostic notation (EDN) of the first CBOR data item using the DiagMode. Any remaining bytes are returned in rest. +func DiagnoseFirst(data []byte) (diagNotation string, rest []byte, err error) { + return defaultDiagMode.DiagnoseFirst(data) +} + +type diagnose struct { + dm *diagMode + d *decoder + w *bytes.Buffer +} + +func newDiagnose(data []byte, decm *decMode, diagm *diagMode) *diagnose { + return &diagnose{ + dm: diagm, + d: &decoder{data: data, dm: decm}, + w: &bytes.Buffer{}, + } +} + +func (di *diagnose) diag(cborSequence bool) (string, error) { + // CBOR Sequence + firstItem := true + for { + switch err := di.wellformed(cborSequence); err { + case nil: + if !firstItem { + di.w.WriteString(", ") + } + firstItem = false + if itemErr := di.item(); itemErr != nil { + return di.w.String(), itemErr + } + + case io.EOF: + if firstItem { + return di.w.String(), err + } + return di.w.String(), nil + + default: + return di.w.String(), err + } + } +} + +func (di *diagnose) diagFirst() (diagNotation string, rest []byte, err error) { + err = di.wellformed(true) + if err == nil { + err = di.item() + } + + if err == nil { + // Return EDN and the rest of the data slice (which might be len 0) + return di.w.String(), di.d.data[di.d.off:], nil + } + + return di.w.String(), nil, err +} + +func (di *diagnose) wellformed(allowExtraData bool) error { + off := di.d.off + err := di.d.wellformed(allowExtraData, false) + di.d.off = off + return err +} + +func (di *diagnose) item() error { //nolint:gocyclo + initialByte := di.d.data[di.d.off] + switch initialByte { + case cborByteStringWithIndefiniteLengthHead, + cborTextStringWithIndefiniteLengthHead: // indefinite-length byte/text string + di.d.off++ + if isBreakFlag(di.d.data[di.d.off]) { + di.d.off++ + switch initialByte { + case cborByteStringWithIndefiniteLengthHead: + // indefinite-length bytes with no chunks. + di.w.WriteString(`''_`) + return nil + case cborTextStringWithIndefiniteLengthHead: + // indefinite-length text with no chunks. + di.w.WriteString(`""_`) + return nil + } + } + + di.w.WriteString("(_ ") + + i := 0 + for !di.d.foundBreak() { + if i > 0 { + di.w.WriteString(", ") + } + + i++ + // wellformedIndefiniteString() already checked that the next item is a byte/text string. + if err := di.item(); err != nil { + return err + } + } + + di.w.WriteByte(')') + return nil + + case cborArrayWithIndefiniteLengthHead: // indefinite-length array + di.d.off++ + di.w.WriteString("[_ ") + + i := 0 + for !di.d.foundBreak() { + if i > 0 { + di.w.WriteString(", ") + } + + i++ + if err := di.item(); err != nil { + return err + } + } + + di.w.WriteByte(']') + return nil + + case cborMapWithIndefiniteLengthHead: // indefinite-length map + di.d.off++ + di.w.WriteString("{_ ") + + i := 0 + for !di.d.foundBreak() { + if i > 0 { + di.w.WriteString(", ") + } + + i++ + // key + if err := di.item(); err != nil { + return err + } + + di.w.WriteString(": ") + + // value + if err := di.item(); err != nil { + return err + } + } + + di.w.WriteByte('}') + return nil + } + + t := di.d.nextCBORType() + switch t { + case cborTypePositiveInt: + _, _, val := di.d.getHead() + di.w.WriteString(strconv.FormatUint(val, 10)) + return nil + + case cborTypeNegativeInt: + _, _, val := di.d.getHead() + if val > math.MaxInt64 { + // CBOR negative integer overflows int64, use big.Int to store value. + bi := new(big.Int) + bi.SetUint64(val) + bi.Add(bi, big.NewInt(1)) + bi.Neg(bi) + di.w.WriteString(bi.String()) + return nil + } + + nValue := int64(-1) ^ int64(val) + di.w.WriteString(strconv.FormatInt(nValue, 10)) + return nil + + case cborTypeByteString: + b, _ := di.d.parseByteString() + return di.encodeByteString(b) + + case cborTypeTextString: + b, err := di.d.parseTextString() + if err != nil { + return err + } + return di.encodeTextString(string(b), '"') + + case cborTypeArray: + _, _, val := di.d.getHead() + count := int(val) + di.w.WriteByte('[') + + for i := 0; i < count; i++ { + if i > 0 { + di.w.WriteString(", ") + } + if err := di.item(); err != nil { + return err + } + } + di.w.WriteByte(']') + return nil + + case cborTypeMap: + _, _, val := di.d.getHead() + count := int(val) + di.w.WriteByte('{') + + for i := 0; i < count; i++ { + if i > 0 { + di.w.WriteString(", ") + } + // key + if err := di.item(); err != nil { + return err + } + di.w.WriteString(": ") + // value + if err := di.item(); err != nil { + return err + } + } + di.w.WriteByte('}') + return nil + + case cborTypeTag: + _, _, tagNum := di.d.getHead() + switch tagNum { + case tagNumUnsignedBignum: + if nt := di.d.nextCBORType(); nt != cborTypeByteString { + return newInadmissibleTagContentTypeError( + tagNumUnsignedBignum, + "byte string", + nt.String()) + } + + b, _ := di.d.parseByteString() + bi := new(big.Int).SetBytes(b) + di.w.WriteString(bi.String()) + return nil + + case tagNumNegativeBignum: + if nt := di.d.nextCBORType(); nt != cborTypeByteString { + return newInadmissibleTagContentTypeError( + tagNumNegativeBignum, + "byte string", + nt.String(), + ) + } + + b, _ := di.d.parseByteString() + bi := new(big.Int).SetBytes(b) + bi.Add(bi, big.NewInt(1)) + bi.Neg(bi) + di.w.WriteString(bi.String()) + return nil + + default: + di.w.WriteString(strconv.FormatUint(tagNum, 10)) + di.w.WriteByte('(') + if err := di.item(); err != nil { + return err + } + di.w.WriteByte(')') + return nil + } + + case cborTypePrimitives: + _, ai, val := di.d.getHead() + switch ai { + case additionalInformationAsFalse: + di.w.WriteString("false") + return nil + + case additionalInformationAsTrue: + di.w.WriteString("true") + return nil + + case additionalInformationAsNull: + di.w.WriteString("null") + return nil + + case additionalInformationAsUndefined: + di.w.WriteString("undefined") + return nil + + case additionalInformationAsFloat16, + additionalInformationAsFloat32, + additionalInformationAsFloat64: + return di.encodeFloat(ai, val) + + default: + di.w.WriteString("simple(") + di.w.WriteString(strconv.FormatUint(val, 10)) + di.w.WriteByte(')') + return nil + } + } + + return nil +} + +// writeU16 format a rune as "\uxxxx" +func (di *diagnose) writeU16(val rune) { + di.w.WriteString("\\u") + var in [2]byte + in[0] = byte(val >> 8) + in[1] = byte(val) + sz := hex.EncodedLen(len(in)) + di.w.Grow(sz) + dst := di.w.Bytes()[di.w.Len() : di.w.Len()+sz] + hex.Encode(dst, in[:]) + di.w.Write(dst) +} + +var rawBase32Encoding = base32.StdEncoding.WithPadding(base32.NoPadding) +var rawBase32HexEncoding = base32.HexEncoding.WithPadding(base32.NoPadding) + +func (di *diagnose) encodeByteString(val []byte) error { + if len(val) > 0 { + if di.dm.byteStringText && utf8.Valid(val) { + return di.encodeTextString(string(val), '\'') + } + + if di.dm.byteStringEmbeddedCBOR { + di2 := newDiagnose(val, di.dm.decMode, di.dm) + // should always notating embedded CBOR sequence. + if str, err := di2.diag(true); err == nil { + di.w.WriteString("<<") + di.w.WriteString(str) + di.w.WriteString(">>") + return nil + } + } + } + + switch di.dm.byteStringEncoding { + case ByteStringBase16Encoding: + di.w.WriteString("h'") + if di.dm.byteStringHexWhitespace { + sz := hex.EncodedLen(len(val)) + if len(val) > 0 { + sz += len(val) - 1 + } + di.w.Grow(sz) + + dst := di.w.Bytes()[di.w.Len():] + for i := range val { + if i > 0 { + dst = append(dst, ' ') + } + hex.Encode(dst[len(dst):len(dst)+2], val[i:i+1]) + dst = dst[:len(dst)+2] + } + di.w.Write(dst) + } else { + sz := hex.EncodedLen(len(val)) + di.w.Grow(sz) + dst := di.w.Bytes()[di.w.Len() : di.w.Len()+sz] + hex.Encode(dst, val) + di.w.Write(dst) + } + di.w.WriteByte('\'') + return nil + + case ByteStringBase32Encoding: + di.w.WriteString("b32'") + sz := rawBase32Encoding.EncodedLen(len(val)) + di.w.Grow(sz) + dst := di.w.Bytes()[di.w.Len() : di.w.Len()+sz] + rawBase32Encoding.Encode(dst, val) + di.w.Write(dst) + di.w.WriteByte('\'') + return nil + + case ByteStringBase32HexEncoding: + di.w.WriteString("h32'") + sz := rawBase32HexEncoding.EncodedLen(len(val)) + di.w.Grow(sz) + dst := di.w.Bytes()[di.w.Len() : di.w.Len()+sz] + rawBase32HexEncoding.Encode(dst, val) + di.w.Write(dst) + di.w.WriteByte('\'') + return nil + + case ByteStringBase64Encoding: + di.w.WriteString("b64'") + sz := base64.RawURLEncoding.EncodedLen(len(val)) + di.w.Grow(sz) + dst := di.w.Bytes()[di.w.Len() : di.w.Len()+sz] + base64.RawURLEncoding.Encode(dst, val) + di.w.Write(dst) + di.w.WriteByte('\'') + return nil + + default: + // It should not be possible for users to construct a *diagMode with an invalid byte + // string encoding. + panic(fmt.Sprintf("diagmode has invalid ByteStringEncoding %v", di.dm.byteStringEncoding)) + } +} + +const utf16SurrSelf = rune(0x10000) + +// quote should be either `'` or `"` +func (di *diagnose) encodeTextString(val string, quote byte) error { + di.w.WriteByte(quote) + + for i := 0; i < len(val); { + if b := val[i]; b < utf8.RuneSelf { + switch { + case b == '\t', b == '\n', b == '\r', b == '\\', b == quote: + di.w.WriteByte('\\') + + switch b { + case '\t': + b = 't' + case '\n': + b = 'n' + case '\r': + b = 'r' + } + di.w.WriteByte(b) + + case b >= ' ' && b <= '~': + di.w.WriteByte(b) + + default: + di.writeU16(rune(b)) + } + + i++ + continue + } + + c, size := utf8.DecodeRuneInString(val[i:]) + switch { + case c == utf8.RuneError: + return &SemanticError{"cbor: invalid UTF-8 string"} + + case c < utf16SurrSelf: + di.writeU16(c) + + default: + c1, c2 := utf16.EncodeRune(c) + di.writeU16(c1) + di.writeU16(c2) + } + + i += size + } + + di.w.WriteByte(quote) + return nil +} + +func (di *diagnose) encodeFloat(ai byte, val uint64) error { + f64 := float64(0) + switch ai { + case additionalInformationAsFloat16: + f16 := float16.Frombits(uint16(val)) + switch { + case f16.IsNaN(): + di.w.WriteString("NaN") + return nil + case f16.IsInf(1): + di.w.WriteString("Infinity") + return nil + case f16.IsInf(-1): + di.w.WriteString("-Infinity") + return nil + default: + f64 = float64(f16.Float32()) + } + + case additionalInformationAsFloat32: + f32 := math.Float32frombits(uint32(val)) + switch { + case f32 != f32: + di.w.WriteString("NaN") + return nil + case f32 > math.MaxFloat32: + di.w.WriteString("Infinity") + return nil + case f32 < -math.MaxFloat32: + di.w.WriteString("-Infinity") + return nil + default: + f64 = float64(f32) + } + + case additionalInformationAsFloat64: + f64 = math.Float64frombits(val) + switch { + case f64 != f64: + di.w.WriteString("NaN") + return nil + case f64 > math.MaxFloat64: + di.w.WriteString("Infinity") + return nil + case f64 < -math.MaxFloat64: + di.w.WriteString("-Infinity") + return nil + } + } + // Use ES6 number to string conversion which should match most JSON generators. + // Inspired by https://github.com/golang/go/blob/4df10fba1687a6d4f51d7238a403f8f2298f6a16/src/encoding/json/encode.go#L585 + const bitSize = 64 + b := make([]byte, 0, 32) + if abs := math.Abs(f64); abs != 0 && (abs < 1e-6 || abs >= 1e21) { + b = strconv.AppendFloat(b, f64, 'e', -1, bitSize) + // clean up e-09 to e-9 + n := len(b) + if n >= 4 && string(b[n-4:n-1]) == "e-0" { + b = append(b[:n-2], b[n-1]) + } + } else { + b = strconv.AppendFloat(b, f64, 'f', -1, bitSize) + } + + // add decimal point and trailing zero if needed + if bytes.IndexByte(b, '.') < 0 { + if i := bytes.IndexByte(b, 'e'); i < 0 { + b = append(b, '.', '0') + } else { + b = append(b[:i+2], b[i:]...) + b[i] = '.' + b[i+1] = '0' + } + } + + di.w.WriteString(string(b)) + + if di.dm.floatPrecisionIndicator { + switch ai { + case additionalInformationAsFloat16: + di.w.WriteString("_1") + return nil + + case additionalInformationAsFloat32: + di.w.WriteString("_2") + return nil + + case additionalInformationAsFloat64: + di.w.WriteString("_3") + return nil + } + } + + return nil +} diff --git a/vendor/github.com/fxamacker/cbor/v2/doc.go b/vendor/github.com/fxamacker/cbor/v2/doc.go new file mode 100644 index 0000000000000..23f68b984c63b --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/doc.go @@ -0,0 +1,129 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +/* +Package cbor is a modern CBOR codec (RFC 8949 & RFC 7049) with CBOR tags, +Go struct tags (toarray/keyasint/omitempty), Core Deterministic Encoding, +CTAP2, Canonical CBOR, float64->32->16, and duplicate map key detection. + +Encoding options allow "preferred serialization" by encoding integers and floats +to their smallest forms (e.g. float16) when values fit. + +Struct tags like "keyasint", "toarray" and "omitempty" make CBOR data smaller +and easier to use with structs. + +For example, "toarray" tag makes struct fields encode to CBOR array elements. And +"keyasint" makes a field encode to an element of CBOR map with specified int key. + +Latest docs can be viewed at https://github.com/fxamacker/cbor#cbor-library-in-go + +# Basics + +The Quick Start guide is at https://github.com/fxamacker/cbor#quick-start + +Function signatures identical to encoding/json include: + + Marshal, Unmarshal, NewEncoder, NewDecoder, (*Encoder).Encode, (*Decoder).Decode. + +Standard interfaces include: + + BinaryMarshaler, BinaryUnmarshaler, Marshaler, and Unmarshaler. + +Custom encoding and decoding is possible by implementing standard interfaces for +user-defined Go types. + +Codec functions are available at package-level (using defaults options) or by +creating modes from options at runtime. + +"Mode" in this API means definite way of encoding (EncMode) or decoding (DecMode). + +EncMode and DecMode interfaces are created from EncOptions or DecOptions structs. + + em, err := cbor.EncOptions{...}.EncMode() + em, err := cbor.CanonicalEncOptions().EncMode() + em, err := cbor.CTAP2EncOptions().EncMode() + +Modes use immutable options to avoid side-effects and simplify concurrency. Behavior of +modes won't accidentally change at runtime after they're created. + +Modes are intended to be reused and are safe for concurrent use. + +EncMode and DecMode Interfaces + + // EncMode interface uses immutable options and is safe for concurrent use. + type EncMode interface { + Marshal(v interface{}) ([]byte, error) + NewEncoder(w io.Writer) *Encoder + EncOptions() EncOptions // returns copy of options + } + + // DecMode interface uses immutable options and is safe for concurrent use. + type DecMode interface { + Unmarshal(data []byte, v interface{}) error + NewDecoder(r io.Reader) *Decoder + DecOptions() DecOptions // returns copy of options + } + +Using Default Encoding Mode + + b, err := cbor.Marshal(v) + + encoder := cbor.NewEncoder(w) + err = encoder.Encode(v) + +Using Default Decoding Mode + + err := cbor.Unmarshal(b, &v) + + decoder := cbor.NewDecoder(r) + err = decoder.Decode(&v) + +Creating and Using Encoding Modes + + // Create EncOptions using either struct literal or a function. + opts := cbor.CanonicalEncOptions() + + // If needed, modify encoding options + opts.Time = cbor.TimeUnix + + // Create reusable EncMode interface with immutable options, safe for concurrent use. + em, err := opts.EncMode() + + // Use EncMode like encoding/json, with same function signatures. + b, err := em.Marshal(v) + // or + encoder := em.NewEncoder(w) + err := encoder.Encode(v) + + // NOTE: Both em.Marshal(v) and encoder.Encode(v) use encoding options + // specified during creation of em (encoding mode). + +# CBOR Options + +Predefined Encoding Options: https://github.com/fxamacker/cbor#predefined-encoding-options + +Encoding Options: https://github.com/fxamacker/cbor#encoding-options + +Decoding Options: https://github.com/fxamacker/cbor#decoding-options + +# Struct Tags + +Struct tags like `cbor:"name,omitempty"` and `json:"name,omitempty"` work as expected. +If both struct tags are specified then `cbor` is used. + +Struct tags like "keyasint", "toarray", and "omitempty" make it easy to use +very compact formats like COSE and CWT (CBOR Web Tokens) with structs. + +For example, "toarray" makes struct fields encode to array elements. And "keyasint" +makes struct fields encode to elements of CBOR map with int keys. + +https://raw.githubusercontent.com/fxamacker/images/master/cbor/v2.0.0/cbor_easy_api.png + +Struct tags are listed at https://github.com/fxamacker/cbor#struct-tags-1 + +# Tests and Fuzzing + +Over 375 tests are included in this package. Cover-guided fuzzing is handled by +a private fuzzer that replaced fxamacker/cbor-fuzz years ago. +*/ +package cbor diff --git a/vendor/github.com/fxamacker/cbor/v2/encode.go b/vendor/github.com/fxamacker/cbor/v2/encode.go new file mode 100644 index 0000000000000..6508e291d6180 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/encode.go @@ -0,0 +1,1989 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "bytes" + "encoding" + "encoding/binary" + "errors" + "fmt" + "io" + "math" + "math/big" + "math/rand" + "reflect" + "sort" + "strconv" + "sync" + "time" + + "github.com/x448/float16" +) + +// Marshal returns the CBOR encoding of v using default encoding options. +// See EncOptions for encoding options. +// +// Marshal uses the following encoding rules: +// +// If value implements the Marshaler interface, Marshal calls its +// MarshalCBOR method. +// +// If value implements encoding.BinaryMarshaler, Marhsal calls its +// MarshalBinary method and encode it as CBOR byte string. +// +// Boolean values encode as CBOR booleans (type 7). +// +// Positive integer values encode as CBOR positive integers (type 0). +// +// Negative integer values encode as CBOR negative integers (type 1). +// +// Floating point values encode as CBOR floating points (type 7). +// +// String values encode as CBOR text strings (type 3). +// +// []byte values encode as CBOR byte strings (type 2). +// +// Array and slice values encode as CBOR arrays (type 4). +// +// Map values encode as CBOR maps (type 5). +// +// Struct values encode as CBOR maps (type 5). Each exported struct field +// becomes a pair with field name encoded as CBOR text string (type 3) and +// field value encoded based on its type. See struct tag option "keyasint" +// to encode field name as CBOR integer (type 0 and 1). Also see struct +// tag option "toarray" for special field "_" to encode struct values as +// CBOR array (type 4). +// +// Marshal supports format string stored under the "cbor" key in the struct +// field's tag. CBOR format string can specify the name of the field, +// "omitempty" and "keyasint" options, and special case "-" for field omission. +// If "cbor" key is absent, Marshal uses "json" key. +// +// Struct field name is treated as integer if it has "keyasint" option in +// its format string. The format string must specify an integer as its +// field name. +// +// Special struct field "_" is used to specify struct level options, such as +// "toarray". "toarray" option enables Go struct to be encoded as CBOR array. +// "omitempty" is disabled by "toarray" to ensure that the same number +// of elements are encoded every time. +// +// Anonymous struct fields are marshaled as if their exported fields +// were fields in the outer struct. Marshal follows the same struct fields +// visibility rules used by JSON encoding package. +// +// time.Time values encode as text strings specified in RFC3339 or numerical +// representation of seconds since January 1, 1970 UTC depending on +// EncOptions.Time setting. Also See EncOptions.TimeTag to encode +// time.Time as CBOR tag with tag number 0 or 1. +// +// big.Int values encode as CBOR integers (type 0 and 1) if values fit. +// Otherwise, big.Int values encode as CBOR bignums (tag 2 and 3). See +// EncOptions.BigIntConvert to always encode big.Int values as CBOR +// bignums. +// +// Pointer values encode as the value pointed to. +// +// Interface values encode as the value stored in the interface. +// +// Nil slice/map/pointer/interface values encode as CBOR nulls (type 7). +// +// Values of other types cannot be encoded in CBOR. Attempting +// to encode such a value causes Marshal to return an UnsupportedTypeError. +func Marshal(v interface{}) ([]byte, error) { + return defaultEncMode.Marshal(v) +} + +// MarshalToBuffer encodes v into provided buffer (instead of using built-in buffer pool) +// and uses default encoding options. +// +// NOTE: Unlike Marshal, the buffer provided to MarshalToBuffer can contain +// partially encoded data if error is returned. +// +// See Marshal for more details. +func MarshalToBuffer(v interface{}, buf *bytes.Buffer) error { + return defaultEncMode.MarshalToBuffer(v, buf) +} + +// Marshaler is the interface implemented by types that can marshal themselves +// into valid CBOR. +type Marshaler interface { + MarshalCBOR() ([]byte, error) +} + +// MarshalerError represents error from checking encoded CBOR data item +// returned from MarshalCBOR for well-formedness and some very limited tag validation. +type MarshalerError struct { + typ reflect.Type + err error +} + +func (e *MarshalerError) Error() string { + return "cbor: error calling MarshalCBOR for type " + + e.typ.String() + + ": " + e.err.Error() +} + +func (e *MarshalerError) Unwrap() error { + return e.err +} + +// UnsupportedTypeError is returned by Marshal when attempting to encode value +// of an unsupported type. +type UnsupportedTypeError struct { + Type reflect.Type +} + +func (e *UnsupportedTypeError) Error() string { + return "cbor: unsupported type: " + e.Type.String() +} + +// UnsupportedValueError is returned by Marshal when attempting to encode an +// unsupported value. +type UnsupportedValueError struct { + msg string +} + +func (e *UnsupportedValueError) Error() string { + return "cbor: unsupported value: " + e.msg +} + +// SortMode identifies supported sorting order. +type SortMode int + +const ( + // SortNone encodes map pairs and struct fields in an arbitrary order. + SortNone SortMode = 0 + + // SortLengthFirst causes map keys or struct fields to be sorted such that: + // - If two keys have different lengths, the shorter one sorts earlier; + // - If two keys have the same length, the one with the lower value in + // (byte-wise) lexical order sorts earlier. + // It is used in "Canonical CBOR" encoding in RFC 7049 3.9. + SortLengthFirst SortMode = 1 + + // SortBytewiseLexical causes map keys or struct fields to be sorted in the + // bytewise lexicographic order of their deterministic CBOR encodings. + // It is used in "CTAP2 Canonical CBOR" and "Core Deterministic Encoding" + // in RFC 7049bis. + SortBytewiseLexical SortMode = 2 + + // SortShuffle encodes map pairs and struct fields in a shuffled + // order. This mode does not guarantee an unbiased permutation, but it + // does guarantee that the runtime of the shuffle algorithm used will be + // constant. + SortFastShuffle SortMode = 3 + + // SortCanonical is used in "Canonical CBOR" encoding in RFC 7049 3.9. + SortCanonical SortMode = SortLengthFirst + + // SortCTAP2 is used in "CTAP2 Canonical CBOR". + SortCTAP2 SortMode = SortBytewiseLexical + + // SortCoreDeterministic is used in "Core Deterministic Encoding" in RFC 7049bis. + SortCoreDeterministic SortMode = SortBytewiseLexical + + maxSortMode SortMode = 4 +) + +func (sm SortMode) valid() bool { + return sm >= 0 && sm < maxSortMode +} + +// StringMode specifies how to encode Go string values. +type StringMode int + +const ( + // StringToTextString encodes Go string to CBOR text string (major type 3). + StringToTextString StringMode = iota + + // StringToByteString encodes Go string to CBOR byte string (major type 2). + StringToByteString +) + +func (st StringMode) cborType() (cborType, error) { + switch st { + case StringToTextString: + return cborTypeTextString, nil + + case StringToByteString: + return cborTypeByteString, nil + } + return 0, errors.New("cbor: invalid StringType " + strconv.Itoa(int(st))) +} + +// ShortestFloatMode specifies which floating-point format should +// be used as the shortest possible format for CBOR encoding. +// It is not used for encoding Infinity and NaN values. +type ShortestFloatMode int + +const ( + // ShortestFloatNone makes float values encode without any conversion. + // This is the default for ShortestFloatMode in v1. + // E.g. a float32 in Go will encode to CBOR float32. And + // a float64 in Go will encode to CBOR float64. + ShortestFloatNone ShortestFloatMode = iota + + // ShortestFloat16 specifies float16 as the shortest form that preserves value. + // E.g. if float64 can convert to float32 while preserving value, then + // encoding will also try to convert float32 to float16. So a float64 might + // encode as CBOR float64, float32 or float16 depending on the value. + ShortestFloat16 + + maxShortestFloat +) + +func (sfm ShortestFloatMode) valid() bool { + return sfm >= 0 && sfm < maxShortestFloat +} + +// NaNConvertMode specifies how to encode NaN and overrides ShortestFloatMode. +// ShortestFloatMode is not used for encoding Infinity and NaN values. +type NaNConvertMode int + +const ( + // NaNConvert7e00 always encodes NaN to 0xf97e00 (CBOR float16 = 0x7e00). + NaNConvert7e00 NaNConvertMode = iota + + // NaNConvertNone never modifies or converts NaN to other representations + // (float64 NaN stays float64, etc. even if it can use float16 without losing + // any bits). + NaNConvertNone + + // NaNConvertPreserveSignal converts NaN to the smallest form that preserves + // value (quiet bit + payload) as described in RFC 7049bis Draft 12. + NaNConvertPreserveSignal + + // NaNConvertQuiet always forces quiet bit = 1 and shortest form that preserves + // NaN payload. + NaNConvertQuiet + + // NaNConvertReject returns UnsupportedValueError on attempts to encode a NaN value. + NaNConvertReject + + maxNaNConvert +) + +func (ncm NaNConvertMode) valid() bool { + return ncm >= 0 && ncm < maxNaNConvert +} + +// InfConvertMode specifies how to encode Infinity and overrides ShortestFloatMode. +// ShortestFloatMode is not used for encoding Infinity and NaN values. +type InfConvertMode int + +const ( + // InfConvertFloat16 always converts Inf to lossless IEEE binary16 (float16). + InfConvertFloat16 InfConvertMode = iota + + // InfConvertNone never converts (used by CTAP2 Canonical CBOR). + InfConvertNone + + // InfConvertReject returns UnsupportedValueError on attempts to encode an infinite value. + InfConvertReject + + maxInfConvert +) + +func (icm InfConvertMode) valid() bool { + return icm >= 0 && icm < maxInfConvert +} + +// TimeMode specifies how to encode time.Time values. +type TimeMode int + +const ( + // TimeUnix causes time.Time to be encoded as epoch time in integer with second precision. + TimeUnix TimeMode = iota + + // TimeUnixMicro causes time.Time to be encoded as epoch time in float-point rounded to microsecond precision. + TimeUnixMicro + + // TimeUnixDynamic causes time.Time to be encoded as integer if time.Time doesn't have fractional seconds, + // otherwise float-point rounded to microsecond precision. + TimeUnixDynamic + + // TimeRFC3339 causes time.Time to be encoded as RFC3339 formatted string with second precision. + TimeRFC3339 + + // TimeRFC3339Nano causes time.Time to be encoded as RFC3339 formatted string with nanosecond precision. + TimeRFC3339Nano + + maxTimeMode +) + +func (tm TimeMode) valid() bool { + return tm >= 0 && tm < maxTimeMode +} + +// BigIntConvertMode specifies how to encode big.Int values. +type BigIntConvertMode int + +const ( + // BigIntConvertShortest makes big.Int encode to CBOR integer if value fits. + // E.g. if big.Int value can be converted to CBOR integer while preserving + // value, encoder will encode it to CBOR integer (major type 0 or 1). + BigIntConvertShortest BigIntConvertMode = iota + + // BigIntConvertNone makes big.Int encode to CBOR bignum (tag 2 or 3) without + // converting it to another CBOR type. + BigIntConvertNone + + // BigIntConvertReject returns an UnsupportedTypeError instead of marshaling a big.Int. + BigIntConvertReject + + maxBigIntConvert +) + +func (bim BigIntConvertMode) valid() bool { + return bim >= 0 && bim < maxBigIntConvert +} + +// NilContainersMode specifies how to encode nil slices and maps. +type NilContainersMode int + +const ( + // NilContainerAsNull encodes nil slices and maps as CBOR null. + // This is the default. + NilContainerAsNull NilContainersMode = iota + + // NilContainerAsEmpty encodes nil slices and maps as + // empty container (CBOR bytestring, array, or map). + NilContainerAsEmpty + + maxNilContainersMode +) + +func (m NilContainersMode) valid() bool { + return m >= 0 && m < maxNilContainersMode +} + +// OmitEmptyMode specifies how to encode struct fields with omitempty tag. +// The default behavior omits if field value would encode as empty CBOR value. +type OmitEmptyMode int + +const ( + // OmitEmptyCBORValue specifies that struct fields tagged with "omitempty" + // should be omitted from encoding if the field would be encoded as an empty + // CBOR value, such as CBOR false, 0, 0.0, nil, empty byte, empty string, + // empty array, or empty map. + OmitEmptyCBORValue OmitEmptyMode = iota + + // OmitEmptyGoValue specifies that struct fields tagged with "omitempty" + // should be omitted from encoding if the field has an empty Go value, + // defined as false, 0, 0.0, a nil pointer, a nil interface value, and + // any empty array, slice, map, or string. + // This behavior is the same as the current (aka v1) encoding/json package + // included in Go. + OmitEmptyGoValue + + maxOmitEmptyMode +) + +func (om OmitEmptyMode) valid() bool { + return om >= 0 && om < maxOmitEmptyMode +} + +// FieldNameMode specifies the CBOR type to use when encoding struct field names. +type FieldNameMode int + +const ( + // FieldNameToTextString encodes struct fields to CBOR text string (major type 3). + FieldNameToTextString FieldNameMode = iota + + // FieldNameToTextString encodes struct fields to CBOR byte string (major type 2). + FieldNameToByteString + + maxFieldNameMode +) + +func (fnm FieldNameMode) valid() bool { + return fnm >= 0 && fnm < maxFieldNameMode +} + +// ByteSliceLaterFormatMode specifies which later format conversion hint (CBOR tag 21-23) +// to include (if any) when encoding Go byte slice to CBOR byte string. The encoder will +// always encode unmodified bytes from the byte slice and just wrap it within +// CBOR tag 21, 22, or 23 if specified. +// See "Expected Later Encoding for CBOR-to-JSON Converters" in RFC 8949 Section 3.4.5.2. +type ByteSliceLaterFormatMode int + +const ( + // ByteSliceLaterFormatNone encodes unmodified bytes from Go byte slice to CBOR byte string (major type 2) + // without adding CBOR tag 21, 22, or 23. + ByteSliceLaterFormatNone ByteSliceLaterFormatMode = iota + + // ByteSliceLaterFormatBase64URL encodes unmodified bytes from Go byte slice to CBOR byte string (major type 2) + // inside CBOR tag 21 (expected later conversion to base64url encoding, see RFC 8949 Section 3.4.5.2). + ByteSliceLaterFormatBase64URL + + // ByteSliceLaterFormatBase64 encodes unmodified bytes from Go byte slice to CBOR byte string (major type 2) + // inside CBOR tag 22 (expected later conversion to base64 encoding, see RFC 8949 Section 3.4.5.2). + ByteSliceLaterFormatBase64 + + // ByteSliceLaterFormatBase16 encodes unmodified bytes from Go byte slice to CBOR byte string (major type 2) + // inside CBOR tag 23 (expected later conversion to base16 encoding, see RFC 8949 Section 3.4.5.2). + ByteSliceLaterFormatBase16 +) + +func (bsefm ByteSliceLaterFormatMode) encodingTag() (uint64, error) { + switch bsefm { + case ByteSliceLaterFormatNone: + return 0, nil + + case ByteSliceLaterFormatBase64URL: + return tagNumExpectedLaterEncodingBase64URL, nil + + case ByteSliceLaterFormatBase64: + return tagNumExpectedLaterEncodingBase64, nil + + case ByteSliceLaterFormatBase16: + return tagNumExpectedLaterEncodingBase16, nil + } + return 0, errors.New("cbor: invalid ByteSliceLaterFormat " + strconv.Itoa(int(bsefm))) +} + +// ByteArrayMode specifies how to encode byte arrays. +type ByteArrayMode int + +const ( + // ByteArrayToByteSlice encodes byte arrays the same way that a byte slice with identical + // length and contents is encoded. + ByteArrayToByteSlice ByteArrayMode = iota + + // ByteArrayToArray encodes byte arrays to the CBOR array type with one unsigned integer + // item for each byte in the array. + ByteArrayToArray + + maxByteArrayMode +) + +func (bam ByteArrayMode) valid() bool { + return bam >= 0 && bam < maxByteArrayMode +} + +// BinaryMarshalerMode specifies how to encode types that implement encoding.BinaryMarshaler. +type BinaryMarshalerMode int + +const ( + // BinaryMarshalerByteString encodes the output of MarshalBinary to a CBOR byte string. + BinaryMarshalerByteString BinaryMarshalerMode = iota + + // BinaryMarshalerNone does not recognize BinaryMarshaler implementations during encode. + BinaryMarshalerNone + + maxBinaryMarshalerMode +) + +func (bmm BinaryMarshalerMode) valid() bool { + return bmm >= 0 && bmm < maxBinaryMarshalerMode +} + +// EncOptions specifies encoding options. +type EncOptions struct { + // Sort specifies sorting order. + Sort SortMode + + // ShortestFloat specifies the shortest floating-point encoding that preserves + // the value being encoded. + ShortestFloat ShortestFloatMode + + // NaNConvert specifies how to encode NaN and it overrides ShortestFloatMode. + NaNConvert NaNConvertMode + + // InfConvert specifies how to encode Inf and it overrides ShortestFloatMode. + InfConvert InfConvertMode + + // BigIntConvert specifies how to encode big.Int values. + BigIntConvert BigIntConvertMode + + // Time specifies how to encode time.Time. + Time TimeMode + + // TimeTag allows time.Time to be encoded with a tag number. + // RFC3339 format gets tag number 0, and numeric epoch time tag number 1. + TimeTag EncTagMode + + // IndefLength specifies whether to allow indefinite length CBOR items. + IndefLength IndefLengthMode + + // NilContainers specifies how to encode nil slices and maps. + NilContainers NilContainersMode + + // TagsMd specifies whether to allow CBOR tags (major type 6). + TagsMd TagsMode + + // OmitEmptyMode specifies how to encode struct fields with omitempty tag. + OmitEmpty OmitEmptyMode + + // String specifies which CBOR type to use when encoding Go strings. + // - CBOR text string (major type 3) is default + // - CBOR byte string (major type 2) + String StringMode + + // FieldName specifies the CBOR type to use when encoding struct field names. + FieldName FieldNameMode + + // ByteSliceLaterFormat specifies which later format conversion hint (CBOR tag 21-23) + // to include (if any) when encoding Go byte slice to CBOR byte string. The encoder will + // always encode unmodified bytes from the byte slice and just wrap it within + // CBOR tag 21, 22, or 23 if specified. + // See "Expected Later Encoding for CBOR-to-JSON Converters" in RFC 8949 Section 3.4.5.2. + ByteSliceLaterFormat ByteSliceLaterFormatMode + + // ByteArray specifies how to encode byte arrays. + ByteArray ByteArrayMode + + // BinaryMarshaler specifies how to encode types that implement encoding.BinaryMarshaler. + BinaryMarshaler BinaryMarshalerMode +} + +// CanonicalEncOptions returns EncOptions for "Canonical CBOR" encoding, +// defined in RFC 7049 Section 3.9 with the following rules: +// +// 1. "Integers must be as small as possible." +// 2. "The expression of lengths in major types 2 through 5 must be as short as possible." +// 3. The keys in every map must be sorted in length-first sorting order. +// See SortLengthFirst for details. +// 4. "Indefinite-length items must be made into definite-length items." +// 5. "If a protocol allows for IEEE floats, then additional canonicalization rules might +// need to be added. One example rule might be to have all floats start as a 64-bit +// float, then do a test conversion to a 32-bit float; if the result is the same numeric +// value, use the shorter value and repeat the process with a test conversion to a +// 16-bit float. (This rule selects 16-bit float for positive and negative Infinity +// as well.) Also, there are many representations for NaN. If NaN is an allowed value, +// it must always be represented as 0xf97e00." +func CanonicalEncOptions() EncOptions { + return EncOptions{ + Sort: SortCanonical, + ShortestFloat: ShortestFloat16, + NaNConvert: NaNConvert7e00, + InfConvert: InfConvertFloat16, + IndefLength: IndefLengthForbidden, + } +} + +// CTAP2EncOptions returns EncOptions for "CTAP2 Canonical CBOR" encoding, +// defined in CTAP specification, with the following rules: +// +// 1. "Integers must be encoded as small as possible." +// 2. "The representations of any floating-point values are not changed." +// 3. "The expression of lengths in major types 2 through 5 must be as short as possible." +// 4. "Indefinite-length items must be made into definite-length items."" +// 5. The keys in every map must be sorted in bytewise lexicographic order. +// See SortBytewiseLexical for details. +// 6. "Tags as defined in Section 2.4 in [RFC7049] MUST NOT be present." +func CTAP2EncOptions() EncOptions { + return EncOptions{ + Sort: SortCTAP2, + ShortestFloat: ShortestFloatNone, + NaNConvert: NaNConvertNone, + InfConvert: InfConvertNone, + IndefLength: IndefLengthForbidden, + TagsMd: TagsForbidden, + } +} + +// CoreDetEncOptions returns EncOptions for "Core Deterministic" encoding, +// defined in RFC 7049bis with the following rules: +// +// 1. "Preferred serialization MUST be used. In particular, this means that arguments +// (see Section 3) for integers, lengths in major types 2 through 5, and tags MUST +// be as short as possible" +// "Floating point values also MUST use the shortest form that preserves the value" +// 2. "Indefinite-length items MUST NOT appear." +// 3. "The keys in every map MUST be sorted in the bytewise lexicographic order of +// their deterministic encodings." +func CoreDetEncOptions() EncOptions { + return EncOptions{ + Sort: SortCoreDeterministic, + ShortestFloat: ShortestFloat16, + NaNConvert: NaNConvert7e00, + InfConvert: InfConvertFloat16, + IndefLength: IndefLengthForbidden, + } +} + +// PreferredUnsortedEncOptions returns EncOptions for "Preferred Serialization" encoding, +// defined in RFC 7049bis with the following rules: +// +// 1. "The preferred serialization always uses the shortest form of representing the argument +// (Section 3);" +// 2. "it also uses the shortest floating-point encoding that preserves the value being +// encoded (see Section 5.5)." +// "The preferred encoding for a floating-point value is the shortest floating-point encoding +// that preserves its value, e.g., 0xf94580 for the number 5.5, and 0xfa45ad9c00 for the +// number 5555.5, unless the CBOR-based protocol specifically excludes the use of the shorter +// floating-point encodings. For NaN values, a shorter encoding is preferred if zero-padding +// the shorter significand towards the right reconstitutes the original NaN value (for many +// applications, the single NaN encoding 0xf97e00 will suffice)." +// 3. "Definite length encoding is preferred whenever the length is known at the time the +// serialization of the item starts." +func PreferredUnsortedEncOptions() EncOptions { + return EncOptions{ + Sort: SortNone, + ShortestFloat: ShortestFloat16, + NaNConvert: NaNConvert7e00, + InfConvert: InfConvertFloat16, + } +} + +// EncMode returns EncMode with immutable options and no tags (safe for concurrency). +func (opts EncOptions) EncMode() (EncMode, error) { //nolint:gocritic // ignore hugeParam + return opts.encMode() +} + +// UserBufferEncMode returns UserBufferEncMode with immutable options and no tags (safe for concurrency). +func (opts EncOptions) UserBufferEncMode() (UserBufferEncMode, error) { //nolint:gocritic // ignore hugeParam + return opts.encMode() +} + +// EncModeWithTags returns EncMode with options and tags that are both immutable (safe for concurrency). +func (opts EncOptions) EncModeWithTags(tags TagSet) (EncMode, error) { //nolint:gocritic // ignore hugeParam + return opts.UserBufferEncModeWithTags(tags) +} + +// UserBufferEncModeWithTags returns UserBufferEncMode with options and tags that are both immutable (safe for concurrency). +func (opts EncOptions) UserBufferEncModeWithTags(tags TagSet) (UserBufferEncMode, error) { //nolint:gocritic // ignore hugeParam + if opts.TagsMd == TagsForbidden { + return nil, errors.New("cbor: cannot create EncMode with TagSet when TagsMd is TagsForbidden") + } + if tags == nil { + return nil, errors.New("cbor: cannot create EncMode with nil value as TagSet") + } + em, err := opts.encMode() + if err != nil { + return nil, err + } + // Copy tags + ts := tagSet(make(map[reflect.Type]*tagItem)) + syncTags := tags.(*syncTagSet) + syncTags.RLock() + for contentType, tag := range syncTags.t { + if tag.opts.EncTag != EncTagNone { + ts[contentType] = tag + } + } + syncTags.RUnlock() + if len(ts) > 0 { + em.tags = ts + } + return em, nil +} + +// EncModeWithSharedTags returns EncMode with immutable options and mutable shared tags (safe for concurrency). +func (opts EncOptions) EncModeWithSharedTags(tags TagSet) (EncMode, error) { //nolint:gocritic // ignore hugeParam + return opts.UserBufferEncModeWithSharedTags(tags) +} + +// UserBufferEncModeWithSharedTags returns UserBufferEncMode with immutable options and mutable shared tags (safe for concurrency). +func (opts EncOptions) UserBufferEncModeWithSharedTags(tags TagSet) (UserBufferEncMode, error) { //nolint:gocritic // ignore hugeParam + if opts.TagsMd == TagsForbidden { + return nil, errors.New("cbor: cannot create EncMode with TagSet when TagsMd is TagsForbidden") + } + if tags == nil { + return nil, errors.New("cbor: cannot create EncMode with nil value as TagSet") + } + em, err := opts.encMode() + if err != nil { + return nil, err + } + em.tags = tags + return em, nil +} + +func (opts EncOptions) encMode() (*encMode, error) { //nolint:gocritic // ignore hugeParam + if !opts.Sort.valid() { + return nil, errors.New("cbor: invalid SortMode " + strconv.Itoa(int(opts.Sort))) + } + if !opts.ShortestFloat.valid() { + return nil, errors.New("cbor: invalid ShortestFloatMode " + strconv.Itoa(int(opts.ShortestFloat))) + } + if !opts.NaNConvert.valid() { + return nil, errors.New("cbor: invalid NaNConvertMode " + strconv.Itoa(int(opts.NaNConvert))) + } + if !opts.InfConvert.valid() { + return nil, errors.New("cbor: invalid InfConvertMode " + strconv.Itoa(int(opts.InfConvert))) + } + if !opts.BigIntConvert.valid() { + return nil, errors.New("cbor: invalid BigIntConvertMode " + strconv.Itoa(int(opts.BigIntConvert))) + } + if !opts.Time.valid() { + return nil, errors.New("cbor: invalid TimeMode " + strconv.Itoa(int(opts.Time))) + } + if !opts.TimeTag.valid() { + return nil, errors.New("cbor: invalid TimeTag " + strconv.Itoa(int(opts.TimeTag))) + } + if !opts.IndefLength.valid() { + return nil, errors.New("cbor: invalid IndefLength " + strconv.Itoa(int(opts.IndefLength))) + } + if !opts.NilContainers.valid() { + return nil, errors.New("cbor: invalid NilContainers " + strconv.Itoa(int(opts.NilContainers))) + } + if !opts.TagsMd.valid() { + return nil, errors.New("cbor: invalid TagsMd " + strconv.Itoa(int(opts.TagsMd))) + } + if opts.TagsMd == TagsForbidden && opts.TimeTag == EncTagRequired { + return nil, errors.New("cbor: cannot set TagsMd to TagsForbidden when TimeTag is EncTagRequired") + } + if !opts.OmitEmpty.valid() { + return nil, errors.New("cbor: invalid OmitEmpty " + strconv.Itoa(int(opts.OmitEmpty))) + } + stringMajorType, err := opts.String.cborType() + if err != nil { + return nil, err + } + if !opts.FieldName.valid() { + return nil, errors.New("cbor: invalid FieldName " + strconv.Itoa(int(opts.FieldName))) + } + byteSliceLaterEncodingTag, err := opts.ByteSliceLaterFormat.encodingTag() + if err != nil { + return nil, err + } + if !opts.ByteArray.valid() { + return nil, errors.New("cbor: invalid ByteArray " + strconv.Itoa(int(opts.ByteArray))) + } + if !opts.BinaryMarshaler.valid() { + return nil, errors.New("cbor: invalid BinaryMarshaler " + strconv.Itoa(int(opts.BinaryMarshaler))) + } + em := encMode{ + sort: opts.Sort, + shortestFloat: opts.ShortestFloat, + nanConvert: opts.NaNConvert, + infConvert: opts.InfConvert, + bigIntConvert: opts.BigIntConvert, + time: opts.Time, + timeTag: opts.TimeTag, + indefLength: opts.IndefLength, + nilContainers: opts.NilContainers, + tagsMd: opts.TagsMd, + omitEmpty: opts.OmitEmpty, + stringType: opts.String, + stringMajorType: stringMajorType, + fieldName: opts.FieldName, + byteSliceLaterFormat: opts.ByteSliceLaterFormat, + byteSliceLaterEncodingTag: byteSliceLaterEncodingTag, + byteArray: opts.ByteArray, + binaryMarshaler: opts.BinaryMarshaler, + } + return &em, nil +} + +// EncMode is the main interface for CBOR encoding. +type EncMode interface { + Marshal(v interface{}) ([]byte, error) + NewEncoder(w io.Writer) *Encoder + EncOptions() EncOptions +} + +// UserBufferEncMode is an interface for CBOR encoding, which extends EncMode by +// adding MarshalToBuffer to support user specified buffer rather than encoding +// into the built-in buffer pool. +type UserBufferEncMode interface { + EncMode + MarshalToBuffer(v interface{}, buf *bytes.Buffer) error + + // This private method is to prevent users implementing + // this interface and so future additions to it will + // not be breaking changes. + // See https://go.dev/blog/module-compatibility + unexport() +} + +type encMode struct { + tags tagProvider + sort SortMode + shortestFloat ShortestFloatMode + nanConvert NaNConvertMode + infConvert InfConvertMode + bigIntConvert BigIntConvertMode + time TimeMode + timeTag EncTagMode + indefLength IndefLengthMode + nilContainers NilContainersMode + tagsMd TagsMode + omitEmpty OmitEmptyMode + stringType StringMode + stringMajorType cborType + fieldName FieldNameMode + byteSliceLaterFormat ByteSliceLaterFormatMode + byteSliceLaterEncodingTag uint64 + byteArray ByteArrayMode + binaryMarshaler BinaryMarshalerMode +} + +var defaultEncMode, _ = EncOptions{}.encMode() + +// These four decoding modes are used by getMarshalerDecMode. +// maxNestedLevels, maxArrayElements, and maxMapPairs are +// set to max allowed limits to avoid rejecting Marshaler +// output that would have been the allowable output of a +// non-Marshaler object that exceeds default limits. +var ( + marshalerForbidIndefLengthForbidTagsDecMode = decMode{ + maxNestedLevels: maxMaxNestedLevels, + maxArrayElements: maxMaxArrayElements, + maxMapPairs: maxMaxMapPairs, + indefLength: IndefLengthForbidden, + tagsMd: TagsForbidden, + } + + marshalerAllowIndefLengthForbidTagsDecMode = decMode{ + maxNestedLevels: maxMaxNestedLevels, + maxArrayElements: maxMaxArrayElements, + maxMapPairs: maxMaxMapPairs, + indefLength: IndefLengthAllowed, + tagsMd: TagsForbidden, + } + + marshalerForbidIndefLengthAllowTagsDecMode = decMode{ + maxNestedLevels: maxMaxNestedLevels, + maxArrayElements: maxMaxArrayElements, + maxMapPairs: maxMaxMapPairs, + indefLength: IndefLengthForbidden, + tagsMd: TagsAllowed, + } + + marshalerAllowIndefLengthAllowTagsDecMode = decMode{ + maxNestedLevels: maxMaxNestedLevels, + maxArrayElements: maxMaxArrayElements, + maxMapPairs: maxMaxMapPairs, + indefLength: IndefLengthAllowed, + tagsMd: TagsAllowed, + } +) + +// getMarshalerDecMode returns one of four existing decoding modes +// which can be reused (safe for parallel use) for the purpose of +// checking if data returned by Marshaler is well-formed. +func getMarshalerDecMode(indefLength IndefLengthMode, tagsMd TagsMode) *decMode { + switch { + case indefLength == IndefLengthAllowed && tagsMd == TagsAllowed: + return &marshalerAllowIndefLengthAllowTagsDecMode + + case indefLength == IndefLengthAllowed && tagsMd == TagsForbidden: + return &marshalerAllowIndefLengthForbidTagsDecMode + + case indefLength == IndefLengthForbidden && tagsMd == TagsAllowed: + return &marshalerForbidIndefLengthAllowTagsDecMode + + case indefLength == IndefLengthForbidden && tagsMd == TagsForbidden: + return &marshalerForbidIndefLengthForbidTagsDecMode + + default: + // This should never happen, unless we add new options to + // IndefLengthMode or TagsMode without updating this function. + return &decMode{ + maxNestedLevels: maxMaxNestedLevels, + maxArrayElements: maxMaxArrayElements, + maxMapPairs: maxMaxMapPairs, + indefLength: indefLength, + tagsMd: tagsMd, + } + } +} + +// EncOptions returns user specified options used to create this EncMode. +func (em *encMode) EncOptions() EncOptions { + return EncOptions{ + Sort: em.sort, + ShortestFloat: em.shortestFloat, + NaNConvert: em.nanConvert, + InfConvert: em.infConvert, + BigIntConvert: em.bigIntConvert, + Time: em.time, + TimeTag: em.timeTag, + IndefLength: em.indefLength, + NilContainers: em.nilContainers, + TagsMd: em.tagsMd, + OmitEmpty: em.omitEmpty, + String: em.stringType, + FieldName: em.fieldName, + ByteSliceLaterFormat: em.byteSliceLaterFormat, + ByteArray: em.byteArray, + BinaryMarshaler: em.binaryMarshaler, + } +} + +func (em *encMode) unexport() {} + +func (em *encMode) encTagBytes(t reflect.Type) []byte { + if em.tags != nil { + if tagItem := em.tags.getTagItemFromType(t); tagItem != nil { + return tagItem.cborTagNum + } + } + return nil +} + +// Marshal returns the CBOR encoding of v using em encoding mode. +// +// See the documentation for Marshal for details. +func (em *encMode) Marshal(v interface{}) ([]byte, error) { + e := getEncodeBuffer() + + if err := encode(e, em, reflect.ValueOf(v)); err != nil { + putEncodeBuffer(e) + return nil, err + } + + buf := make([]byte, e.Len()) + copy(buf, e.Bytes()) + + putEncodeBuffer(e) + return buf, nil +} + +// MarshalToBuffer encodes v into provided buffer (instead of using built-in buffer pool) +// and uses em encoding mode. +// +// NOTE: Unlike Marshal, the buffer provided to MarshalToBuffer can contain +// partially encoded data if error is returned. +// +// See Marshal for more details. +func (em *encMode) MarshalToBuffer(v interface{}, buf *bytes.Buffer) error { + if buf == nil { + return fmt.Errorf("cbor: encoding buffer provided by user is nil") + } + return encode(buf, em, reflect.ValueOf(v)) +} + +// NewEncoder returns a new encoder that writes to w using em EncMode. +func (em *encMode) NewEncoder(w io.Writer) *Encoder { + return &Encoder{w: w, em: em} +} + +// encodeBufferPool caches unused bytes.Buffer objects for later reuse. +var encodeBufferPool = sync.Pool{ + New: func() interface{} { + e := new(bytes.Buffer) + e.Grow(32) // TODO: make this configurable + return e + }, +} + +func getEncodeBuffer() *bytes.Buffer { + return encodeBufferPool.Get().(*bytes.Buffer) +} + +func putEncodeBuffer(e *bytes.Buffer) { + e.Reset() + encodeBufferPool.Put(e) +} + +type encodeFunc func(e *bytes.Buffer, em *encMode, v reflect.Value) error +type isEmptyFunc func(em *encMode, v reflect.Value) (empty bool, err error) + +func encode(e *bytes.Buffer, em *encMode, v reflect.Value) error { + if !v.IsValid() { + // v is zero value + e.Write(cborNil) + return nil + } + vt := v.Type() + f, _ := getEncodeFunc(vt) + if f == nil { + return &UnsupportedTypeError{vt} + } + + return f(e, em, v) +} + +func encodeBool(e *bytes.Buffer, em *encMode, v reflect.Value) error { + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + b := cborFalse + if v.Bool() { + b = cborTrue + } + e.Write(b) + return nil +} + +func encodeInt(e *bytes.Buffer, em *encMode, v reflect.Value) error { + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + i := v.Int() + if i >= 0 { + encodeHead(e, byte(cborTypePositiveInt), uint64(i)) + return nil + } + i = i*(-1) - 1 + encodeHead(e, byte(cborTypeNegativeInt), uint64(i)) + return nil +} + +func encodeUint(e *bytes.Buffer, em *encMode, v reflect.Value) error { + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + encodeHead(e, byte(cborTypePositiveInt), v.Uint()) + return nil +} + +func encodeFloat(e *bytes.Buffer, em *encMode, v reflect.Value) error { + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + f64 := v.Float() + if math.IsNaN(f64) { + return encodeNaN(e, em, v) + } + if math.IsInf(f64, 0) { + return encodeInf(e, em, v) + } + fopt := em.shortestFloat + if v.Kind() == reflect.Float64 && (fopt == ShortestFloatNone || cannotFitFloat32(f64)) { + // Encode float64 + // Don't use encodeFloat64() because it cannot be inlined. + const argumentSize = 8 + const headSize = 1 + argumentSize + var scratch [headSize]byte + scratch[0] = byte(cborTypePrimitives) | byte(additionalInformationAsFloat64) + binary.BigEndian.PutUint64(scratch[1:], math.Float64bits(f64)) + e.Write(scratch[:]) + return nil + } + + f32 := float32(f64) + if fopt == ShortestFloat16 { + var f16 float16.Float16 + p := float16.PrecisionFromfloat32(f32) + if p == float16.PrecisionExact { + // Roundtrip float32->float16->float32 test isn't needed. + f16 = float16.Fromfloat32(f32) + } else if p == float16.PrecisionUnknown { + // Try roundtrip float32->float16->float32 to determine if float32 can fit into float16. + f16 = float16.Fromfloat32(f32) + if f16.Float32() == f32 { + p = float16.PrecisionExact + } + } + if p == float16.PrecisionExact { + // Encode float16 + // Don't use encodeFloat16() because it cannot be inlined. + const argumentSize = 2 + const headSize = 1 + argumentSize + var scratch [headSize]byte + scratch[0] = byte(cborTypePrimitives) | additionalInformationAsFloat16 + binary.BigEndian.PutUint16(scratch[1:], uint16(f16)) + e.Write(scratch[:]) + return nil + } + } + + // Encode float32 + // Don't use encodeFloat32() because it cannot be inlined. + const argumentSize = 4 + const headSize = 1 + argumentSize + var scratch [headSize]byte + scratch[0] = byte(cborTypePrimitives) | additionalInformationAsFloat32 + binary.BigEndian.PutUint32(scratch[1:], math.Float32bits(f32)) + e.Write(scratch[:]) + return nil +} + +func encodeInf(e *bytes.Buffer, em *encMode, v reflect.Value) error { + f64 := v.Float() + switch em.infConvert { + case InfConvertReject: + return &UnsupportedValueError{msg: "floating-point infinity"} + + case InfConvertFloat16: + if f64 > 0 { + e.Write(cborPositiveInfinity) + } else { + e.Write(cborNegativeInfinity) + } + return nil + } + if v.Kind() == reflect.Float64 { + return encodeFloat64(e, f64) + } + return encodeFloat32(e, float32(f64)) +} + +func encodeNaN(e *bytes.Buffer, em *encMode, v reflect.Value) error { + switch em.nanConvert { + case NaNConvert7e00: + e.Write(cborNaN) + return nil + + case NaNConvertNone: + if v.Kind() == reflect.Float64 { + return encodeFloat64(e, v.Float()) + } + f32 := float32NaNFromReflectValue(v) + return encodeFloat32(e, f32) + + case NaNConvertReject: + return &UnsupportedValueError{msg: "floating-point NaN"} + + default: // NaNConvertPreserveSignal, NaNConvertQuiet + if v.Kind() == reflect.Float64 { + f64 := v.Float() + f64bits := math.Float64bits(f64) + if em.nanConvert == NaNConvertQuiet && f64bits&(1<<51) == 0 { + f64bits |= 1 << 51 // Set quiet bit = 1 + f64 = math.Float64frombits(f64bits) + } + // The lower 29 bits are dropped when converting from float64 to float32. + if f64bits&0x1fffffff != 0 { + // Encode NaN as float64 because dropped coef bits from float64 to float32 are not all 0s. + return encodeFloat64(e, f64) + } + // Create float32 from float64 manually because float32(f64) always turns on NaN's quiet bits. + sign := uint32(f64bits>>32) & (1 << 31) + exp := uint32(0x7f800000) + coef := uint32((f64bits & 0xfffffffffffff) >> 29) + f32bits := sign | exp | coef + f32 := math.Float32frombits(f32bits) + // The lower 13 bits are dropped when converting from float32 to float16. + if f32bits&0x1fff != 0 { + // Encode NaN as float32 because dropped coef bits from float32 to float16 are not all 0s. + return encodeFloat32(e, f32) + } + // Encode NaN as float16 + f16, _ := float16.FromNaN32ps(f32) // Ignore err because it only returns error when f32 is not a NaN. + return encodeFloat16(e, f16) + } + + f32 := float32NaNFromReflectValue(v) + f32bits := math.Float32bits(f32) + if em.nanConvert == NaNConvertQuiet && f32bits&(1<<22) == 0 { + f32bits |= 1 << 22 // Set quiet bit = 1 + f32 = math.Float32frombits(f32bits) + } + // The lower 13 bits are dropped coef bits when converting from float32 to float16. + if f32bits&0x1fff != 0 { + // Encode NaN as float32 because dropped coef bits from float32 to float16 are not all 0s. + return encodeFloat32(e, f32) + } + f16, _ := float16.FromNaN32ps(f32) // Ignore err because it only returns error when f32 is not a NaN. + return encodeFloat16(e, f16) + } +} + +func encodeFloat16(e *bytes.Buffer, f16 float16.Float16) error { + const argumentSize = 2 + const headSize = 1 + argumentSize + var scratch [headSize]byte + scratch[0] = byte(cborTypePrimitives) | additionalInformationAsFloat16 + binary.BigEndian.PutUint16(scratch[1:], uint16(f16)) + e.Write(scratch[:]) + return nil +} + +func encodeFloat32(e *bytes.Buffer, f32 float32) error { + const argumentSize = 4 + const headSize = 1 + argumentSize + var scratch [headSize]byte + scratch[0] = byte(cborTypePrimitives) | additionalInformationAsFloat32 + binary.BigEndian.PutUint32(scratch[1:], math.Float32bits(f32)) + e.Write(scratch[:]) + return nil +} + +func encodeFloat64(e *bytes.Buffer, f64 float64) error { + const argumentSize = 8 + const headSize = 1 + argumentSize + var scratch [headSize]byte + scratch[0] = byte(cborTypePrimitives) | additionalInformationAsFloat64 + binary.BigEndian.PutUint64(scratch[1:], math.Float64bits(f64)) + e.Write(scratch[:]) + return nil +} + +func encodeByteString(e *bytes.Buffer, em *encMode, v reflect.Value) error { + vk := v.Kind() + if vk == reflect.Slice && v.IsNil() && em.nilContainers == NilContainerAsNull { + e.Write(cborNil) + return nil + } + if vk == reflect.Slice && v.Type().Elem().Kind() == reflect.Uint8 && em.byteSliceLaterEncodingTag != 0 { + encodeHead(e, byte(cborTypeTag), em.byteSliceLaterEncodingTag) + } + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + slen := v.Len() + if slen == 0 { + return e.WriteByte(byte(cborTypeByteString)) + } + encodeHead(e, byte(cborTypeByteString), uint64(slen)) + if vk == reflect.Array { + for i := 0; i < slen; i++ { + e.WriteByte(byte(v.Index(i).Uint())) + } + return nil + } + e.Write(v.Bytes()) + return nil +} + +func encodeString(e *bytes.Buffer, em *encMode, v reflect.Value) error { + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + s := v.String() + encodeHead(e, byte(em.stringMajorType), uint64(len(s))) + e.WriteString(s) + return nil +} + +type arrayEncodeFunc struct { + f encodeFunc +} + +func (ae arrayEncodeFunc) encode(e *bytes.Buffer, em *encMode, v reflect.Value) error { + if em.byteArray == ByteArrayToByteSlice && v.Type().Elem().Kind() == reflect.Uint8 { + return encodeByteString(e, em, v) + } + if v.Kind() == reflect.Slice && v.IsNil() && em.nilContainers == NilContainerAsNull { + e.Write(cborNil) + return nil + } + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + alen := v.Len() + if alen == 0 { + return e.WriteByte(byte(cborTypeArray)) + } + encodeHead(e, byte(cborTypeArray), uint64(alen)) + for i := 0; i < alen; i++ { + if err := ae.f(e, em, v.Index(i)); err != nil { + return err + } + } + return nil +} + +// encodeKeyValueFunc encodes key/value pairs in map (v). +// If kvs is provided (having the same length as v), length of encoded key and value are stored in kvs. +// kvs is used for canonical encoding of map. +type encodeKeyValueFunc func(e *bytes.Buffer, em *encMode, v reflect.Value, kvs []keyValue) error + +type mapEncodeFunc struct { + e encodeKeyValueFunc +} + +func (me mapEncodeFunc) encode(e *bytes.Buffer, em *encMode, v reflect.Value) error { + if v.IsNil() && em.nilContainers == NilContainerAsNull { + e.Write(cborNil) + return nil + } + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + mlen := v.Len() + if mlen == 0 { + return e.WriteByte(byte(cborTypeMap)) + } + + encodeHead(e, byte(cborTypeMap), uint64(mlen)) + if em.sort == SortNone || em.sort == SortFastShuffle || mlen <= 1 { + return me.e(e, em, v, nil) + } + + kvsp := getKeyValues(v.Len()) // for sorting keys + defer putKeyValues(kvsp) + kvs := *kvsp + + kvBeginOffset := e.Len() + if err := me.e(e, em, v, kvs); err != nil { + return err + } + kvTotalLen := e.Len() - kvBeginOffset + + // Use the capacity at the tail of the encode buffer as a staging area to rearrange the + // encoded pairs into sorted order. + e.Grow(kvTotalLen) + tmp := e.Bytes()[e.Len() : e.Len()+kvTotalLen] // Can use e.AvailableBuffer() in Go 1.21+. + dst := e.Bytes()[kvBeginOffset:] + + if em.sort == SortBytewiseLexical { + sort.Sort(&bytewiseKeyValueSorter{kvs: kvs, data: dst}) + } else { + sort.Sort(&lengthFirstKeyValueSorter{kvs: kvs, data: dst}) + } + + // This is where the encoded bytes are actually rearranged in the output buffer to reflect + // the desired order. + sortedOffset := 0 + for _, kv := range kvs { + copy(tmp[sortedOffset:], dst[kv.offset:kv.nextOffset]) + sortedOffset += kv.nextOffset - kv.offset + } + copy(dst, tmp[:kvTotalLen]) + + return nil + +} + +// keyValue is the position of an encoded pair in a buffer. All offsets are zero-based and relative +// to the first byte of the first encoded pair. +type keyValue struct { + offset int + valueOffset int + nextOffset int +} + +type bytewiseKeyValueSorter struct { + kvs []keyValue + data []byte +} + +func (x *bytewiseKeyValueSorter) Len() int { + return len(x.kvs) +} + +func (x *bytewiseKeyValueSorter) Swap(i, j int) { + x.kvs[i], x.kvs[j] = x.kvs[j], x.kvs[i] +} + +func (x *bytewiseKeyValueSorter) Less(i, j int) bool { + kvi, kvj := x.kvs[i], x.kvs[j] + return bytes.Compare(x.data[kvi.offset:kvi.valueOffset], x.data[kvj.offset:kvj.valueOffset]) <= 0 +} + +type lengthFirstKeyValueSorter struct { + kvs []keyValue + data []byte +} + +func (x *lengthFirstKeyValueSorter) Len() int { + return len(x.kvs) +} + +func (x *lengthFirstKeyValueSorter) Swap(i, j int) { + x.kvs[i], x.kvs[j] = x.kvs[j], x.kvs[i] +} + +func (x *lengthFirstKeyValueSorter) Less(i, j int) bool { + kvi, kvj := x.kvs[i], x.kvs[j] + if keyLengthDifference := (kvi.valueOffset - kvi.offset) - (kvj.valueOffset - kvj.offset); keyLengthDifference != 0 { + return keyLengthDifference < 0 + } + return bytes.Compare(x.data[kvi.offset:kvi.valueOffset], x.data[kvj.offset:kvj.valueOffset]) <= 0 +} + +var keyValuePool = sync.Pool{} + +func getKeyValues(length int) *[]keyValue { + v := keyValuePool.Get() + if v == nil { + y := make([]keyValue, length) + return &y + } + x := v.(*[]keyValue) + if cap(*x) >= length { + *x = (*x)[:length] + return x + } + // []keyValue from the pool does not have enough capacity. + // Return it back to the pool and create a new one. + keyValuePool.Put(x) + y := make([]keyValue, length) + return &y +} + +func putKeyValues(x *[]keyValue) { + *x = (*x)[:0] + keyValuePool.Put(x) +} + +func encodeStructToArray(e *bytes.Buffer, em *encMode, v reflect.Value) (err error) { + structType, err := getEncodingStructType(v.Type()) + if err != nil { + return err + } + + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + + flds := structType.fields + + encodeHead(e, byte(cborTypeArray), uint64(len(flds))) + for i := 0; i < len(flds); i++ { + f := flds[i] + + var fv reflect.Value + if len(f.idx) == 1 { + fv = v.Field(f.idx[0]) + } else { + // Get embedded field value. No error is expected. + fv, _ = getFieldValue(v, f.idx, func(reflect.Value) (reflect.Value, error) { + // Write CBOR nil for null pointer to embedded struct + e.Write(cborNil) + return reflect.Value{}, nil + }) + if !fv.IsValid() { + continue + } + } + + if err := f.ef(e, em, fv); err != nil { + return err + } + } + return nil +} + +func encodeStruct(e *bytes.Buffer, em *encMode, v reflect.Value) (err error) { + structType, err := getEncodingStructType(v.Type()) + if err != nil { + return err + } + + flds := structType.getFields(em) + + start := 0 + if em.sort == SortFastShuffle && len(flds) > 0 { + start = rand.Intn(len(flds)) //nolint:gosec // Don't need a CSPRNG for deck cutting. + } + + if b := em.encTagBytes(v.Type()); b != nil { + e.Write(b) + } + + // Encode head with struct field count. + // Head is rewritten later if actual encoded field count is different from struct field count. + encodedHeadLen := encodeHead(e, byte(cborTypeMap), uint64(len(flds))) + + kvbegin := e.Len() + kvcount := 0 + for offset := 0; offset < len(flds); offset++ { + f := flds[(start+offset)%len(flds)] + + var fv reflect.Value + if len(f.idx) == 1 { + fv = v.Field(f.idx[0]) + } else { + // Get embedded field value. No error is expected. + fv, _ = getFieldValue(v, f.idx, func(reflect.Value) (reflect.Value, error) { + // Skip null pointer to embedded struct + return reflect.Value{}, nil + }) + if !fv.IsValid() { + continue + } + } + if f.omitEmpty { + empty, err := f.ief(em, fv) + if err != nil { + return err + } + if empty { + continue + } + } + + if !f.keyAsInt && em.fieldName == FieldNameToByteString { + e.Write(f.cborNameByteString) + } else { // int or text string + e.Write(f.cborName) + } + + if err := f.ef(e, em, fv); err != nil { + return err + } + + kvcount++ + } + + if len(flds) == kvcount { + // Encoded element count in head is the same as actual element count. + return nil + } + + // Overwrite the bytes that were reserved for the head before encoding the map entries. + var actualHeadLen int + { + headbuf := *bytes.NewBuffer(e.Bytes()[kvbegin-encodedHeadLen : kvbegin-encodedHeadLen : kvbegin]) + actualHeadLen = encodeHead(&headbuf, byte(cborTypeMap), uint64(kvcount)) + } + + if actualHeadLen == encodedHeadLen { + // The bytes reserved for the encoded head were exactly the right size, so the + // encoded entries are already in their final positions. + return nil + } + + // We reserved more bytes than needed for the encoded head, based on the number of fields + // encoded. The encoded entries are offset to the right by the number of excess reserved + // bytes. Shift the entries left to remove the gap. + excessReservedBytes := encodedHeadLen - actualHeadLen + dst := e.Bytes()[kvbegin-excessReservedBytes : e.Len()-excessReservedBytes] + src := e.Bytes()[kvbegin:e.Len()] + copy(dst, src) + + // After shifting, the excess bytes are at the end of the output buffer and they are + // garbage. + e.Truncate(e.Len() - excessReservedBytes) + return nil +} + +func encodeIntf(e *bytes.Buffer, em *encMode, v reflect.Value) error { + if v.IsNil() { + e.Write(cborNil) + return nil + } + return encode(e, em, v.Elem()) +} + +func encodeTime(e *bytes.Buffer, em *encMode, v reflect.Value) error { + t := v.Interface().(time.Time) + if t.IsZero() { + e.Write(cborNil) // Even if tag is required, encode as CBOR null. + return nil + } + if em.timeTag == EncTagRequired { + tagNumber := 1 + if em.time == TimeRFC3339 || em.time == TimeRFC3339Nano { + tagNumber = 0 + } + encodeHead(e, byte(cborTypeTag), uint64(tagNumber)) + } + switch em.time { + case TimeUnix: + secs := t.Unix() + return encodeInt(e, em, reflect.ValueOf(secs)) + + case TimeUnixMicro: + t = t.UTC().Round(time.Microsecond) + f := float64(t.UnixNano()) / 1e9 + return encodeFloat(e, em, reflect.ValueOf(f)) + + case TimeUnixDynamic: + t = t.UTC().Round(time.Microsecond) + secs, nsecs := t.Unix(), uint64(t.Nanosecond()) + if nsecs == 0 { + return encodeInt(e, em, reflect.ValueOf(secs)) + } + f := float64(secs) + float64(nsecs)/1e9 + return encodeFloat(e, em, reflect.ValueOf(f)) + + case TimeRFC3339: + s := t.Format(time.RFC3339) + return encodeString(e, em, reflect.ValueOf(s)) + + default: // TimeRFC3339Nano + s := t.Format(time.RFC3339Nano) + return encodeString(e, em, reflect.ValueOf(s)) + } +} + +func encodeBigInt(e *bytes.Buffer, em *encMode, v reflect.Value) error { + if em.bigIntConvert == BigIntConvertReject { + return &UnsupportedTypeError{Type: typeBigInt} + } + + vbi := v.Interface().(big.Int) + sign := vbi.Sign() + bi := new(big.Int).SetBytes(vbi.Bytes()) // bi is absolute value of v + if sign < 0 { + // For negative number, convert to CBOR encoded number (-v-1). + bi.Sub(bi, big.NewInt(1)) + } + + if em.bigIntConvert == BigIntConvertShortest { + if bi.IsUint64() { + if sign >= 0 { + // Encode as CBOR pos int (major type 0) + encodeHead(e, byte(cborTypePositiveInt), bi.Uint64()) + return nil + } + // Encode as CBOR neg int (major type 1) + encodeHead(e, byte(cborTypeNegativeInt), bi.Uint64()) + return nil + } + } + + tagNum := 2 + if sign < 0 { + tagNum = 3 + } + // Write tag number + encodeHead(e, byte(cborTypeTag), uint64(tagNum)) + // Write bignum byte string + b := bi.Bytes() + encodeHead(e, byte(cborTypeByteString), uint64(len(b))) + e.Write(b) + return nil +} + +type binaryMarshalerEncoder struct { + alternateEncode encodeFunc + alternateIsEmpty isEmptyFunc +} + +func (bme binaryMarshalerEncoder) encode(e *bytes.Buffer, em *encMode, v reflect.Value) error { + if em.binaryMarshaler != BinaryMarshalerByteString { + return bme.alternateEncode(e, em, v) + } + + vt := v.Type() + m, ok := v.Interface().(encoding.BinaryMarshaler) + if !ok { + pv := reflect.New(vt) + pv.Elem().Set(v) + m = pv.Interface().(encoding.BinaryMarshaler) + } + data, err := m.MarshalBinary() + if err != nil { + return err + } + if b := em.encTagBytes(vt); b != nil { + e.Write(b) + } + encodeHead(e, byte(cborTypeByteString), uint64(len(data))) + e.Write(data) + return nil +} + +func (bme binaryMarshalerEncoder) isEmpty(em *encMode, v reflect.Value) (bool, error) { + if em.binaryMarshaler != BinaryMarshalerByteString { + return bme.alternateIsEmpty(em, v) + } + + m, ok := v.Interface().(encoding.BinaryMarshaler) + if !ok { + pv := reflect.New(v.Type()) + pv.Elem().Set(v) + m = pv.Interface().(encoding.BinaryMarshaler) + } + data, err := m.MarshalBinary() + if err != nil { + return false, err + } + return len(data) == 0, nil +} + +func encodeMarshalerType(e *bytes.Buffer, em *encMode, v reflect.Value) error { + if em.tagsMd == TagsForbidden && v.Type() == typeRawTag { + return errors.New("cbor: cannot encode cbor.RawTag when TagsMd is TagsForbidden") + } + m, ok := v.Interface().(Marshaler) + if !ok { + pv := reflect.New(v.Type()) + pv.Elem().Set(v) + m = pv.Interface().(Marshaler) + } + data, err := m.MarshalCBOR() + if err != nil { + return err + } + + // Verify returned CBOR data item from MarshalCBOR() is well-formed and passes tag validity for builtin tags 0-3. + d := decoder{data: data, dm: getMarshalerDecMode(em.indefLength, em.tagsMd)} + err = d.wellformed(false, true) + if err != nil { + return &MarshalerError{typ: v.Type(), err: err} + } + + e.Write(data) + return nil +} + +func encodeTag(e *bytes.Buffer, em *encMode, v reflect.Value) error { + if em.tagsMd == TagsForbidden { + return errors.New("cbor: cannot encode cbor.Tag when TagsMd is TagsForbidden") + } + + t := v.Interface().(Tag) + + if t.Number == 0 && t.Content == nil { + // Marshal uninitialized cbor.Tag + e.Write(cborNil) + return nil + } + + // Marshal tag number + encodeHead(e, byte(cborTypeTag), t.Number) + + vem := *em // shallow copy + + // For built-in tags, disable settings that may introduce tag validity errors when + // marshaling certain Content values. + switch t.Number { + case tagNumRFC3339Time: + vem.stringType = StringToTextString + vem.stringMajorType = cborTypeTextString + case tagNumUnsignedBignum, tagNumNegativeBignum: + vem.byteSliceLaterFormat = ByteSliceLaterFormatNone + vem.byteSliceLaterEncodingTag = 0 + } + + // Marshal tag content + return encode(e, &vem, reflect.ValueOf(t.Content)) +} + +// encodeHead writes CBOR head of specified type t and returns number of bytes written. +func encodeHead(e *bytes.Buffer, t byte, n uint64) int { + if n <= maxAdditionalInformationWithoutArgument { + const headSize = 1 + e.WriteByte(t | byte(n)) + return headSize + } + + if n <= math.MaxUint8 { + const headSize = 2 + scratch := [headSize]byte{ + t | byte(additionalInformationWith1ByteArgument), + byte(n), + } + e.Write(scratch[:]) + return headSize + } + + if n <= math.MaxUint16 { + const headSize = 3 + var scratch [headSize]byte + scratch[0] = t | byte(additionalInformationWith2ByteArgument) + binary.BigEndian.PutUint16(scratch[1:], uint16(n)) + e.Write(scratch[:]) + return headSize + } + + if n <= math.MaxUint32 { + const headSize = 5 + var scratch [headSize]byte + scratch[0] = t | byte(additionalInformationWith4ByteArgument) + binary.BigEndian.PutUint32(scratch[1:], uint32(n)) + e.Write(scratch[:]) + return headSize + } + + const headSize = 9 + var scratch [headSize]byte + scratch[0] = t | byte(additionalInformationWith8ByteArgument) + binary.BigEndian.PutUint64(scratch[1:], n) + e.Write(scratch[:]) + return headSize +} + +var ( + typeMarshaler = reflect.TypeOf((*Marshaler)(nil)).Elem() + typeBinaryMarshaler = reflect.TypeOf((*encoding.BinaryMarshaler)(nil)).Elem() + typeRawMessage = reflect.TypeOf(RawMessage(nil)) + typeByteString = reflect.TypeOf(ByteString("")) +) + +func getEncodeFuncInternal(t reflect.Type) (ef encodeFunc, ief isEmptyFunc) { + k := t.Kind() + if k == reflect.Ptr { + return getEncodeIndirectValueFunc(t), isEmptyPtr + } + switch t { + case typeSimpleValue: + return encodeMarshalerType, isEmptyUint + + case typeTag: + return encodeTag, alwaysNotEmpty + + case typeTime: + return encodeTime, alwaysNotEmpty + + case typeBigInt: + return encodeBigInt, alwaysNotEmpty + + case typeRawMessage: + return encodeMarshalerType, isEmptySlice + + case typeByteString: + return encodeMarshalerType, isEmptyString + } + if reflect.PtrTo(t).Implements(typeMarshaler) { + return encodeMarshalerType, alwaysNotEmpty + } + if reflect.PtrTo(t).Implements(typeBinaryMarshaler) { + defer func() { + // capture encoding method used for modes that disable BinaryMarshaler + bme := binaryMarshalerEncoder{ + alternateEncode: ef, + alternateIsEmpty: ief, + } + ef = bme.encode + ief = bme.isEmpty + }() + } + switch k { + case reflect.Bool: + return encodeBool, isEmptyBool + + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return encodeInt, isEmptyInt + + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + return encodeUint, isEmptyUint + + case reflect.Float32, reflect.Float64: + return encodeFloat, isEmptyFloat + + case reflect.String: + return encodeString, isEmptyString + + case reflect.Slice: + if t.Elem().Kind() == reflect.Uint8 { + return encodeByteString, isEmptySlice + } + fallthrough + + case reflect.Array: + f, _ := getEncodeFunc(t.Elem()) + if f == nil { + return nil, nil + } + return arrayEncodeFunc{f: f}.encode, isEmptySlice + + case reflect.Map: + f := getEncodeMapFunc(t) + if f == nil { + return nil, nil + } + return f, isEmptyMap + + case reflect.Struct: + // Get struct's special field "_" tag options + if f, ok := t.FieldByName("_"); ok { + tag := f.Tag.Get("cbor") + if tag != "-" { + if hasToArrayOption(tag) { + return encodeStructToArray, isEmptyStruct + } + } + } + return encodeStruct, isEmptyStruct + + case reflect.Interface: + return encodeIntf, isEmptyIntf + } + return nil, nil +} + +func getEncodeIndirectValueFunc(t reflect.Type) encodeFunc { + for t.Kind() == reflect.Ptr { + t = t.Elem() + } + f, _ := getEncodeFunc(t) + if f == nil { + return nil + } + return func(e *bytes.Buffer, em *encMode, v reflect.Value) error { + for v.Kind() == reflect.Ptr && !v.IsNil() { + v = v.Elem() + } + if v.Kind() == reflect.Ptr && v.IsNil() { + e.Write(cborNil) + return nil + } + return f(e, em, v) + } +} + +func alwaysNotEmpty(_ *encMode, _ reflect.Value) (empty bool, err error) { + return false, nil +} + +func isEmptyBool(_ *encMode, v reflect.Value) (bool, error) { + return !v.Bool(), nil +} + +func isEmptyInt(_ *encMode, v reflect.Value) (bool, error) { + return v.Int() == 0, nil +} + +func isEmptyUint(_ *encMode, v reflect.Value) (bool, error) { + return v.Uint() == 0, nil +} + +func isEmptyFloat(_ *encMode, v reflect.Value) (bool, error) { + return v.Float() == 0.0, nil +} + +func isEmptyString(_ *encMode, v reflect.Value) (bool, error) { + return v.Len() == 0, nil +} + +func isEmptySlice(_ *encMode, v reflect.Value) (bool, error) { + return v.Len() == 0, nil +} + +func isEmptyMap(_ *encMode, v reflect.Value) (bool, error) { + return v.Len() == 0, nil +} + +func isEmptyPtr(_ *encMode, v reflect.Value) (bool, error) { + return v.IsNil(), nil +} + +func isEmptyIntf(_ *encMode, v reflect.Value) (bool, error) { + return v.IsNil(), nil +} + +func isEmptyStruct(em *encMode, v reflect.Value) (bool, error) { + structType, err := getEncodingStructType(v.Type()) + if err != nil { + return false, err + } + + if em.omitEmpty == OmitEmptyGoValue { + return false, nil + } + + if structType.toArray { + return len(structType.fields) == 0, nil + } + + if len(structType.fields) > len(structType.omitEmptyFieldsIdx) { + return false, nil + } + + for _, i := range structType.omitEmptyFieldsIdx { + f := structType.fields[i] + + // Get field value + var fv reflect.Value + if len(f.idx) == 1 { + fv = v.Field(f.idx[0]) + } else { + // Get embedded field value. No error is expected. + fv, _ = getFieldValue(v, f.idx, func(reflect.Value) (reflect.Value, error) { + // Skip null pointer to embedded struct + return reflect.Value{}, nil + }) + if !fv.IsValid() { + continue + } + } + + empty, err := f.ief(em, fv) + if err != nil { + return false, err + } + if !empty { + return false, nil + } + } + return true, nil +} + +func cannotFitFloat32(f64 float64) bool { + f32 := float32(f64) + return float64(f32) != f64 +} + +// float32NaNFromReflectValue extracts float32 NaN from reflect.Value while preserving NaN's quiet bit. +func float32NaNFromReflectValue(v reflect.Value) float32 { + // Keith Randall's workaround for issue https://github.com/golang/go/issues/36400 + p := reflect.New(v.Type()) + p.Elem().Set(v) + f32 := p.Convert(reflect.TypeOf((*float32)(nil))).Elem().Interface().(float32) + return f32 +} diff --git a/vendor/github.com/fxamacker/cbor/v2/encode_map.go b/vendor/github.com/fxamacker/cbor/v2/encode_map.go new file mode 100644 index 0000000000000..8b4b4bbc59fb2 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/encode_map.go @@ -0,0 +1,94 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +//go:build go1.20 + +package cbor + +import ( + "bytes" + "reflect" + "sync" +) + +type mapKeyValueEncodeFunc struct { + kf, ef encodeFunc + kpool, vpool sync.Pool +} + +func (me *mapKeyValueEncodeFunc) encodeKeyValues(e *bytes.Buffer, em *encMode, v reflect.Value, kvs []keyValue) error { + iterk := me.kpool.Get().(*reflect.Value) + defer func() { + iterk.SetZero() + me.kpool.Put(iterk) + }() + iterv := me.vpool.Get().(*reflect.Value) + defer func() { + iterv.SetZero() + me.vpool.Put(iterv) + }() + + if kvs == nil { + for i, iter := 0, v.MapRange(); iter.Next(); i++ { + iterk.SetIterKey(iter) + iterv.SetIterValue(iter) + + if err := me.kf(e, em, *iterk); err != nil { + return err + } + if err := me.ef(e, em, *iterv); err != nil { + return err + } + } + return nil + } + + initial := e.Len() + for i, iter := 0, v.MapRange(); iter.Next(); i++ { + iterk.SetIterKey(iter) + iterv.SetIterValue(iter) + + offset := e.Len() + if err := me.kf(e, em, *iterk); err != nil { + return err + } + valueOffset := e.Len() + if err := me.ef(e, em, *iterv); err != nil { + return err + } + kvs[i] = keyValue{ + offset: offset - initial, + valueOffset: valueOffset - initial, + nextOffset: e.Len() - initial, + } + } + + return nil +} + +func getEncodeMapFunc(t reflect.Type) encodeFunc { + kf, _ := getEncodeFunc(t.Key()) + ef, _ := getEncodeFunc(t.Elem()) + if kf == nil || ef == nil { + return nil + } + mkv := &mapKeyValueEncodeFunc{ + kf: kf, + ef: ef, + kpool: sync.Pool{ + New: func() interface{} { + rk := reflect.New(t.Key()).Elem() + return &rk + }, + }, + vpool: sync.Pool{ + New: func() interface{} { + rv := reflect.New(t.Elem()).Elem() + return &rv + }, + }, + } + return mapEncodeFunc{ + e: mkv.encodeKeyValues, + }.encode +} diff --git a/vendor/github.com/fxamacker/cbor/v2/encode_map_go117.go b/vendor/github.com/fxamacker/cbor/v2/encode_map_go117.go new file mode 100644 index 0000000000000..31c39336ddfc8 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/encode_map_go117.go @@ -0,0 +1,60 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +//go:build !go1.20 + +package cbor + +import ( + "bytes" + "reflect" +) + +type mapKeyValueEncodeFunc struct { + kf, ef encodeFunc +} + +func (me *mapKeyValueEncodeFunc) encodeKeyValues(e *bytes.Buffer, em *encMode, v reflect.Value, kvs []keyValue) error { + if kvs == nil { + for i, iter := 0, v.MapRange(); iter.Next(); i++ { + if err := me.kf(e, em, iter.Key()); err != nil { + return err + } + if err := me.ef(e, em, iter.Value()); err != nil { + return err + } + } + return nil + } + + initial := e.Len() + for i, iter := 0, v.MapRange(); iter.Next(); i++ { + offset := e.Len() + if err := me.kf(e, em, iter.Key()); err != nil { + return err + } + valueOffset := e.Len() + if err := me.ef(e, em, iter.Value()); err != nil { + return err + } + kvs[i] = keyValue{ + offset: offset - initial, + valueOffset: valueOffset - initial, + nextOffset: e.Len() - initial, + } + } + + return nil +} + +func getEncodeMapFunc(t reflect.Type) encodeFunc { + kf, _ := getEncodeFunc(t.Key()) + ef, _ := getEncodeFunc(t.Elem()) + if kf == nil || ef == nil { + return nil + } + mkv := &mapKeyValueEncodeFunc{kf: kf, ef: ef} + return mapEncodeFunc{ + e: mkv.encodeKeyValues, + }.encode +} diff --git a/vendor/github.com/fxamacker/cbor/v2/simplevalue.go b/vendor/github.com/fxamacker/cbor/v2/simplevalue.go new file mode 100644 index 0000000000000..de175cee4add0 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/simplevalue.go @@ -0,0 +1,69 @@ +package cbor + +import ( + "errors" + "fmt" + "reflect" +) + +// SimpleValue represents CBOR simple value. +// CBOR simple value is: +// - an extension point like CBOR tag. +// - a subset of CBOR major type 7 that isn't floating-point. +// - "identified by a number between 0 and 255, but distinct from that number itself". +// For example, "a simple value 2 is not equivalent to an integer 2" as a CBOR map key. +// +// CBOR simple values identified by 20..23 are: "false", "true" , "null", and "undefined". +// Other CBOR simple values are currently unassigned/reserved by IANA. +type SimpleValue uint8 + +var ( + typeSimpleValue = reflect.TypeOf(SimpleValue(0)) +) + +// MarshalCBOR encodes SimpleValue as CBOR simple value (major type 7). +func (sv SimpleValue) MarshalCBOR() ([]byte, error) { + // RFC 8949 3.3. Floating-Point Numbers and Values with No Content says: + // "An encoder MUST NOT issue two-byte sequences that start with 0xf8 + // (major type 7, additional information 24) and continue with a byte + // less than 0x20 (32 decimal). Such sequences are not well-formed. + // (This implies that an encoder cannot encode false, true, null, or + // undefined in two-byte sequences and that only the one-byte variants + // of these are well-formed; more generally speaking, each simple value + // only has a single representation variant)." + + switch { + case sv <= maxSimpleValueInAdditionalInformation: + return []byte{byte(cborTypePrimitives) | byte(sv)}, nil + + case sv >= minSimpleValueIn1ByteArgument: + return []byte{byte(cborTypePrimitives) | additionalInformationWith1ByteArgument, byte(sv)}, nil + + default: + return nil, &UnsupportedValueError{msg: fmt.Sprintf("SimpleValue(%d)", sv)} + } +} + +// UnmarshalCBOR decodes CBOR simple value (major type 7) to SimpleValue. +func (sv *SimpleValue) UnmarshalCBOR(data []byte) error { + if sv == nil { + return errors.New("cbor.SimpleValue: UnmarshalCBOR on nil pointer") + } + + d := decoder{data: data, dm: defaultDecMode} + + typ, ai, val := d.getHead() + + if typ != cborTypePrimitives { + return &UnmarshalTypeError{CBORType: typ.String(), GoType: "SimpleValue"} + } + if ai > additionalInformationWith1ByteArgument { + return &UnmarshalTypeError{CBORType: typ.String(), GoType: "SimpleValue", errorMsg: "not simple values"} + } + + // It is safe to cast val to uint8 here because + // - data is already verified to be well-formed CBOR simple value and + // - val is <= math.MaxUint8. + *sv = SimpleValue(val) + return nil +} diff --git a/vendor/github.com/fxamacker/cbor/v2/stream.go b/vendor/github.com/fxamacker/cbor/v2/stream.go new file mode 100644 index 0000000000000..507ab6c184948 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/stream.go @@ -0,0 +1,277 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "bytes" + "errors" + "io" + "reflect" +) + +// Decoder reads and decodes CBOR values from io.Reader. +type Decoder struct { + r io.Reader + d decoder + buf []byte + off int // next read offset in buf + bytesRead int +} + +// NewDecoder returns a new decoder that reads and decodes from r using +// the default decoding options. +func NewDecoder(r io.Reader) *Decoder { + return defaultDecMode.NewDecoder(r) +} + +// Decode reads CBOR value and decodes it into the value pointed to by v. +func (dec *Decoder) Decode(v interface{}) error { + _, err := dec.readNext() + if err != nil { + // Return validation error or read error. + return err + } + + dec.d.reset(dec.buf[dec.off:]) + err = dec.d.value(v) + + // Increment dec.off even if decoding err is not nil because + // dec.d.off points to the next CBOR data item if current + // CBOR data item is valid but failed to be decoded into v. + // This allows next CBOR data item to be decoded in next + // call to this function. + dec.off += dec.d.off + dec.bytesRead += dec.d.off + + return err +} + +// Skip skips to the next CBOR data item (if there is any), +// otherwise it returns error such as io.EOF, io.UnexpectedEOF, etc. +func (dec *Decoder) Skip() error { + n, err := dec.readNext() + if err != nil { + // Return validation error or read error. + return err + } + + dec.off += n + dec.bytesRead += n + return nil +} + +// NumBytesRead returns the number of bytes read. +func (dec *Decoder) NumBytesRead() int { + return dec.bytesRead +} + +// Buffered returns a reader for data remaining in Decoder's buffer. +// Returned reader is valid until the next call to Decode or Skip. +func (dec *Decoder) Buffered() io.Reader { + return bytes.NewReader(dec.buf[dec.off:]) +} + +// readNext() reads next CBOR data item from Reader to buffer. +// It returns the size of next CBOR data item. +// It also returns validation error or read error if any. +func (dec *Decoder) readNext() (int, error) { + var readErr error + var validErr error + + for { + // Process any unread data in dec.buf. + if dec.off < len(dec.buf) { + dec.d.reset(dec.buf[dec.off:]) + off := dec.off // Save offset before data validation + validErr = dec.d.wellformed(true, false) + dec.off = off // Restore offset + + if validErr == nil { + return dec.d.off, nil + } + + if validErr != io.ErrUnexpectedEOF { + return 0, validErr + } + + // Process last read error on io.ErrUnexpectedEOF. + if readErr != nil { + if readErr == io.EOF { + // current CBOR data item is incomplete. + return 0, io.ErrUnexpectedEOF + } + return 0, readErr + } + } + + // More data is needed and there was no read error. + var n int + for n == 0 { + n, readErr = dec.read() + if n == 0 && readErr != nil { + // No more data can be read and read error is encountered. + // At this point, validErr is either nil or io.ErrUnexpectedEOF. + if readErr == io.EOF { + if validErr == io.ErrUnexpectedEOF { + // current CBOR data item is incomplete. + return 0, io.ErrUnexpectedEOF + } + } + return 0, readErr + } + } + + // At this point, dec.buf contains new data from last read (n > 0). + } +} + +// read() reads data from Reader to buffer. +// It returns number of bytes read and any read error encountered. +// Postconditions: +// - dec.buf contains previously unread data and new data. +// - dec.off is 0. +func (dec *Decoder) read() (int, error) { + // Grow buf if needed. + const minRead = 512 + if cap(dec.buf)-len(dec.buf)+dec.off < minRead { + oldUnreadBuf := dec.buf[dec.off:] + dec.buf = make([]byte, len(dec.buf)-dec.off, 2*cap(dec.buf)+minRead) + dec.overwriteBuf(oldUnreadBuf) + } + + // Copy unread data over read data and reset off to 0. + if dec.off > 0 { + dec.overwriteBuf(dec.buf[dec.off:]) + } + + // Read from reader and reslice buf. + n, err := dec.r.Read(dec.buf[len(dec.buf):cap(dec.buf)]) + dec.buf = dec.buf[0 : len(dec.buf)+n] + return n, err +} + +func (dec *Decoder) overwriteBuf(newBuf []byte) { + n := copy(dec.buf, newBuf) + dec.buf = dec.buf[:n] + dec.off = 0 +} + +// Encoder writes CBOR values to io.Writer. +type Encoder struct { + w io.Writer + em *encMode + indefTypes []cborType +} + +// NewEncoder returns a new encoder that writes to w using the default encoding options. +func NewEncoder(w io.Writer) *Encoder { + return defaultEncMode.NewEncoder(w) +} + +// Encode writes the CBOR encoding of v. +func (enc *Encoder) Encode(v interface{}) error { + if len(enc.indefTypes) > 0 && v != nil { + indefType := enc.indefTypes[len(enc.indefTypes)-1] + if indefType == cborTypeTextString { + k := reflect.TypeOf(v).Kind() + if k != reflect.String { + return errors.New("cbor: cannot encode item type " + k.String() + " for indefinite-length text string") + } + } else if indefType == cborTypeByteString { + t := reflect.TypeOf(v) + k := t.Kind() + if (k != reflect.Array && k != reflect.Slice) || t.Elem().Kind() != reflect.Uint8 { + return errors.New("cbor: cannot encode item type " + k.String() + " for indefinite-length byte string") + } + } + } + + buf := getEncodeBuffer() + + err := encode(buf, enc.em, reflect.ValueOf(v)) + if err == nil { + _, err = enc.w.Write(buf.Bytes()) + } + + putEncodeBuffer(buf) + return err +} + +// StartIndefiniteByteString starts byte string encoding of indefinite length. +// Subsequent calls of (*Encoder).Encode() encodes definite length byte strings +// ("chunks") as one contiguous string until EndIndefinite is called. +func (enc *Encoder) StartIndefiniteByteString() error { + return enc.startIndefinite(cborTypeByteString) +} + +// StartIndefiniteTextString starts text string encoding of indefinite length. +// Subsequent calls of (*Encoder).Encode() encodes definite length text strings +// ("chunks") as one contiguous string until EndIndefinite is called. +func (enc *Encoder) StartIndefiniteTextString() error { + return enc.startIndefinite(cborTypeTextString) +} + +// StartIndefiniteArray starts array encoding of indefinite length. +// Subsequent calls of (*Encoder).Encode() encodes elements of the array +// until EndIndefinite is called. +func (enc *Encoder) StartIndefiniteArray() error { + return enc.startIndefinite(cborTypeArray) +} + +// StartIndefiniteMap starts array encoding of indefinite length. +// Subsequent calls of (*Encoder).Encode() encodes elements of the map +// until EndIndefinite is called. +func (enc *Encoder) StartIndefiniteMap() error { + return enc.startIndefinite(cborTypeMap) +} + +// EndIndefinite closes last opened indefinite length value. +func (enc *Encoder) EndIndefinite() error { + if len(enc.indefTypes) == 0 { + return errors.New("cbor: cannot encode \"break\" code outside indefinite length values") + } + _, err := enc.w.Write([]byte{cborBreakFlag}) + if err == nil { + enc.indefTypes = enc.indefTypes[:len(enc.indefTypes)-1] + } + return err +} + +var cborIndefHeader = map[cborType][]byte{ + cborTypeByteString: {cborByteStringWithIndefiniteLengthHead}, + cborTypeTextString: {cborTextStringWithIndefiniteLengthHead}, + cborTypeArray: {cborArrayWithIndefiniteLengthHead}, + cborTypeMap: {cborMapWithIndefiniteLengthHead}, +} + +func (enc *Encoder) startIndefinite(typ cborType) error { + if enc.em.indefLength == IndefLengthForbidden { + return &IndefiniteLengthError{typ} + } + _, err := enc.w.Write(cborIndefHeader[typ]) + if err == nil { + enc.indefTypes = append(enc.indefTypes, typ) + } + return err +} + +// RawMessage is a raw encoded CBOR value. +type RawMessage []byte + +// MarshalCBOR returns m or CBOR nil if m is nil. +func (m RawMessage) MarshalCBOR() ([]byte, error) { + if len(m) == 0 { + return cborNil, nil + } + return m, nil +} + +// UnmarshalCBOR creates a copy of data and saves to *m. +func (m *RawMessage) UnmarshalCBOR(data []byte) error { + if m == nil { + return errors.New("cbor.RawMessage: UnmarshalCBOR on nil pointer") + } + *m = append((*m)[0:0], data...) + return nil +} diff --git a/vendor/github.com/fxamacker/cbor/v2/structfields.go b/vendor/github.com/fxamacker/cbor/v2/structfields.go new file mode 100644 index 0000000000000..81228acf0fdce --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/structfields.go @@ -0,0 +1,260 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "reflect" + "sort" + "strings" +) + +type field struct { + name string + nameAsInt int64 // used to decoder to match field name with CBOR int + cborName []byte + cborNameByteString []byte // major type 2 name encoding iff cborName has major type 3 + idx []int + typ reflect.Type + ef encodeFunc + ief isEmptyFunc + typInfo *typeInfo // used to decoder to reuse type info + tagged bool // used to choose dominant field (at the same level tagged fields dominate untagged fields) + omitEmpty bool // used to skip empty field + keyAsInt bool // used to encode/decode field name as int +} + +type fields []*field + +// indexFieldSorter sorts fields by field idx at each level, breaking ties with idx depth. +type indexFieldSorter struct { + fields fields +} + +func (x *indexFieldSorter) Len() int { + return len(x.fields) +} + +func (x *indexFieldSorter) Swap(i, j int) { + x.fields[i], x.fields[j] = x.fields[j], x.fields[i] +} + +func (x *indexFieldSorter) Less(i, j int) bool { + iIdx, jIdx := x.fields[i].idx, x.fields[j].idx + for k := 0; k < len(iIdx) && k < len(jIdx); k++ { + if iIdx[k] != jIdx[k] { + return iIdx[k] < jIdx[k] + } + } + return len(iIdx) <= len(jIdx) +} + +// nameLevelAndTagFieldSorter sorts fields by field name, idx depth, and presence of tag. +type nameLevelAndTagFieldSorter struct { + fields fields +} + +func (x *nameLevelAndTagFieldSorter) Len() int { + return len(x.fields) +} + +func (x *nameLevelAndTagFieldSorter) Swap(i, j int) { + x.fields[i], x.fields[j] = x.fields[j], x.fields[i] +} + +func (x *nameLevelAndTagFieldSorter) Less(i, j int) bool { + fi, fj := x.fields[i], x.fields[j] + if fi.name != fj.name { + return fi.name < fj.name + } + if len(fi.idx) != len(fj.idx) { + return len(fi.idx) < len(fj.idx) + } + if fi.tagged != fj.tagged { + return fi.tagged + } + return i < j // Field i and j have the same name, depth, and tagged status. Nothing else matters. +} + +// getFields returns visible fields of struct type t following visibility rules for JSON encoding. +func getFields(t reflect.Type) (flds fields, structOptions string) { + // Get special field "_" tag options + if f, ok := t.FieldByName("_"); ok { + tag := f.Tag.Get("cbor") + if tag != "-" { + structOptions = tag + } + } + + // nTypes contains next level anonymous fields' types and indexes + // (there can be multiple fields of the same type at the same level) + flds, nTypes := appendFields(t, nil, nil, nil) + + if len(nTypes) > 0 { + + var cTypes map[reflect.Type][][]int // current level anonymous fields' types and indexes + vTypes := map[reflect.Type]bool{t: true} // visited field types at less nested levels + + for len(nTypes) > 0 { + cTypes, nTypes = nTypes, nil + + for t, idx := range cTypes { + // If there are multiple anonymous fields of the same struct type at the same level, all are ignored. + if len(idx) > 1 { + continue + } + + // Anonymous field of the same type at deeper nested level is ignored. + if vTypes[t] { + continue + } + vTypes[t] = true + + flds, nTypes = appendFields(t, idx[0], flds, nTypes) + } + } + } + + sort.Sort(&nameLevelAndTagFieldSorter{flds}) + + // Keep visible fields. + j := 0 // index of next unique field + for i := 0; i < len(flds); { + name := flds[i].name + if i == len(flds)-1 || // last field + name != flds[i+1].name || // field i has unique field name + len(flds[i].idx) < len(flds[i+1].idx) || // field i is at a less nested level than field i+1 + (flds[i].tagged && !flds[i+1].tagged) { // field i is tagged while field i+1 is not + flds[j] = flds[i] + j++ + } + + // Skip fields with the same field name. + for i++; i < len(flds) && name == flds[i].name; i++ { //nolint:revive + } + } + if j != len(flds) { + flds = flds[:j] + } + + // Sort fields by field index + sort.Sort(&indexFieldSorter{flds}) + + return flds, structOptions +} + +// appendFields appends type t's exportable fields to flds and anonymous struct fields to nTypes . +func appendFields( + t reflect.Type, + idx []int, + flds fields, + nTypes map[reflect.Type][][]int, +) ( + _flds fields, + _nTypes map[reflect.Type][][]int, +) { + for i := 0; i < t.NumField(); i++ { + f := t.Field(i) + + ft := f.Type + for ft.Kind() == reflect.Ptr { + ft = ft.Elem() + } + + if !isFieldExportable(f, ft.Kind()) { + continue + } + + tag := f.Tag.Get("cbor") + if tag == "" { + tag = f.Tag.Get("json") + } + if tag == "-" { + continue + } + + tagged := tag != "" + + // Parse field tag options + var tagFieldName string + var omitempty, keyasint bool + for j := 0; tag != ""; j++ { + var token string + idx := strings.IndexByte(tag, ',') + if idx == -1 { + token, tag = tag, "" + } else { + token, tag = tag[:idx], tag[idx+1:] + } + if j == 0 { + tagFieldName = token + } else { + switch token { + case "omitempty": + omitempty = true + case "keyasint": + keyasint = true + } + } + } + + fieldName := tagFieldName + if tagFieldName == "" { + fieldName = f.Name + } + + fIdx := make([]int, len(idx)+1) + copy(fIdx, idx) + fIdx[len(fIdx)-1] = i + + if !f.Anonymous || ft.Kind() != reflect.Struct || tagFieldName != "" { + flds = append(flds, &field{ + name: fieldName, + idx: fIdx, + typ: f.Type, + omitEmpty: omitempty, + keyAsInt: keyasint, + tagged: tagged}) + } else { + if nTypes == nil { + nTypes = make(map[reflect.Type][][]int) + } + nTypes[ft] = append(nTypes[ft], fIdx) + } + } + + return flds, nTypes +} + +// isFieldExportable returns true if f is an exportable (regular or anonymous) field or +// a nonexportable anonymous field of struct type. +// Nonexportable anonymous field of struct type can contain exportable fields. +func isFieldExportable(f reflect.StructField, fk reflect.Kind) bool { //nolint:gocritic // ignore hugeParam + exportable := f.PkgPath == "" + return exportable || (f.Anonymous && fk == reflect.Struct) +} + +type embeddedFieldNullPtrFunc func(reflect.Value) (reflect.Value, error) + +// getFieldValue returns field value of struct v by index. When encountering null pointer +// to anonymous (embedded) struct field, f is called with the last traversed field value. +func getFieldValue(v reflect.Value, idx []int, f embeddedFieldNullPtrFunc) (fv reflect.Value, err error) { + fv = v + for i, n := range idx { + fv = fv.Field(n) + + if i < len(idx)-1 { + if fv.Kind() == reflect.Ptr && fv.Type().Elem().Kind() == reflect.Struct { + if fv.IsNil() { + // Null pointer to embedded struct field + fv, err = f(fv) + if err != nil || !fv.IsValid() { + return fv, err + } + } + fv = fv.Elem() + } + } + } + return fv, nil +} diff --git a/vendor/github.com/fxamacker/cbor/v2/tag.go b/vendor/github.com/fxamacker/cbor/v2/tag.go new file mode 100644 index 0000000000000..5c4d2b7a42fc5 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/tag.go @@ -0,0 +1,299 @@ +package cbor + +import ( + "errors" + "fmt" + "reflect" + "sync" +) + +// Tag represents CBOR tag data, including tag number and unmarshaled tag content. Marshaling and +// unmarshaling of tag content is subject to any encode and decode options that would apply to +// enclosed data item if it were to appear outside of a tag. +type Tag struct { + Number uint64 + Content interface{} +} + +// RawTag represents CBOR tag data, including tag number and raw tag content. +// RawTag implements Unmarshaler and Marshaler interfaces. +type RawTag struct { + Number uint64 + Content RawMessage +} + +// UnmarshalCBOR sets *t with tag number and raw tag content copied from data. +func (t *RawTag) UnmarshalCBOR(data []byte) error { + if t == nil { + return errors.New("cbor.RawTag: UnmarshalCBOR on nil pointer") + } + + // Decoding CBOR null and undefined to cbor.RawTag is no-op. + if len(data) == 1 && (data[0] == 0xf6 || data[0] == 0xf7) { + return nil + } + + d := decoder{data: data, dm: defaultDecMode} + + // Unmarshal tag number. + typ, _, num := d.getHead() + if typ != cborTypeTag { + return &UnmarshalTypeError{CBORType: typ.String(), GoType: typeRawTag.String()} + } + t.Number = num + + // Unmarshal tag content. + c := d.data[d.off:] + t.Content = make([]byte, len(c)) + copy(t.Content, c) + return nil +} + +// MarshalCBOR returns CBOR encoding of t. +func (t RawTag) MarshalCBOR() ([]byte, error) { + if t.Number == 0 && len(t.Content) == 0 { + // Marshal uninitialized cbor.RawTag + b := make([]byte, len(cborNil)) + copy(b, cborNil) + return b, nil + } + + e := getEncodeBuffer() + + encodeHead(e, byte(cborTypeTag), t.Number) + + content := t.Content + if len(content) == 0 { + content = cborNil + } + + buf := make([]byte, len(e.Bytes())+len(content)) + n := copy(buf, e.Bytes()) + copy(buf[n:], content) + + putEncodeBuffer(e) + return buf, nil +} + +// DecTagMode specifies how decoder handles tag number. +type DecTagMode int + +const ( + // DecTagIgnored makes decoder ignore tag number (skips if present). + DecTagIgnored DecTagMode = iota + + // DecTagOptional makes decoder verify tag number if it's present. + DecTagOptional + + // DecTagRequired makes decoder verify tag number and tag number must be present. + DecTagRequired + + maxDecTagMode +) + +func (dtm DecTagMode) valid() bool { + return dtm >= 0 && dtm < maxDecTagMode +} + +// EncTagMode specifies how encoder handles tag number. +type EncTagMode int + +const ( + // EncTagNone makes encoder not encode tag number. + EncTagNone EncTagMode = iota + + // EncTagRequired makes encoder encode tag number. + EncTagRequired + + maxEncTagMode +) + +func (etm EncTagMode) valid() bool { + return etm >= 0 && etm < maxEncTagMode +} + +// TagOptions specifies how encoder and decoder handle tag number. +type TagOptions struct { + DecTag DecTagMode + EncTag EncTagMode +} + +// TagSet is an interface to add and remove tag info. It is used by EncMode and DecMode +// to provide CBOR tag support. +type TagSet interface { + // Add adds given tag number(s), content type, and tag options to TagSet. + Add(opts TagOptions, contentType reflect.Type, num uint64, nestedNum ...uint64) error + + // Remove removes given tag content type from TagSet. + Remove(contentType reflect.Type) + + tagProvider +} + +type tagProvider interface { + getTagItemFromType(t reflect.Type) *tagItem + getTypeFromTagNum(num []uint64) reflect.Type +} + +type tagItem struct { + num []uint64 + cborTagNum []byte + contentType reflect.Type + opts TagOptions +} + +func (t *tagItem) equalTagNum(num []uint64) bool { + // Fast path to compare 1 tag number + if len(t.num) == 1 && len(num) == 1 && t.num[0] == num[0] { + return true + } + + if len(t.num) != len(num) { + return false + } + + for i := 0; i < len(t.num); i++ { + if t.num[i] != num[i] { + return false + } + } + + return true +} + +type ( + tagSet map[reflect.Type]*tagItem + + syncTagSet struct { + sync.RWMutex + t tagSet + } +) + +func (t tagSet) getTagItemFromType(typ reflect.Type) *tagItem { + return t[typ] +} + +func (t tagSet) getTypeFromTagNum(num []uint64) reflect.Type { + for typ, tag := range t { + if tag.equalTagNum(num) { + return typ + } + } + return nil +} + +// NewTagSet returns TagSet (safe for concurrency). +func NewTagSet() TagSet { + return &syncTagSet{t: make(map[reflect.Type]*tagItem)} +} + +// Add adds given tag number(s), content type, and tag options to TagSet. +func (t *syncTagSet) Add(opts TagOptions, contentType reflect.Type, num uint64, nestedNum ...uint64) error { + if contentType == nil { + return errors.New("cbor: cannot add nil content type to TagSet") + } + for contentType.Kind() == reflect.Ptr { + contentType = contentType.Elem() + } + tag, err := newTagItem(opts, contentType, num, nestedNum...) + if err != nil { + return err + } + t.Lock() + defer t.Unlock() + for typ, ti := range t.t { + if typ == contentType { + return errors.New("cbor: content type " + contentType.String() + " already exists in TagSet") + } + if ti.equalTagNum(tag.num) { + return fmt.Errorf("cbor: tag number %v already exists in TagSet", tag.num) + } + } + t.t[contentType] = tag + return nil +} + +// Remove removes given tag content type from TagSet. +func (t *syncTagSet) Remove(contentType reflect.Type) { + for contentType.Kind() == reflect.Ptr { + contentType = contentType.Elem() + } + t.Lock() + delete(t.t, contentType) + t.Unlock() +} + +func (t *syncTagSet) getTagItemFromType(typ reflect.Type) *tagItem { + t.RLock() + ti := t.t[typ] + t.RUnlock() + return ti +} + +func (t *syncTagSet) getTypeFromTagNum(num []uint64) reflect.Type { + t.RLock() + rt := t.t.getTypeFromTagNum(num) + t.RUnlock() + return rt +} + +func newTagItem(opts TagOptions, contentType reflect.Type, num uint64, nestedNum ...uint64) (*tagItem, error) { + if opts.DecTag == DecTagIgnored && opts.EncTag == EncTagNone { + return nil, errors.New("cbor: cannot add tag with DecTagIgnored and EncTagNone options to TagSet") + } + if contentType.PkgPath() == "" || contentType.Kind() == reflect.Interface { + return nil, errors.New("cbor: can only add named types to TagSet, got " + contentType.String()) + } + if contentType == typeTime { + return nil, errors.New("cbor: cannot add time.Time to TagSet, use EncOptions.TimeTag and DecOptions.TimeTag instead") + } + if contentType == typeBigInt { + return nil, errors.New("cbor: cannot add big.Int to TagSet, it's built-in and supported automatically") + } + if contentType == typeTag { + return nil, errors.New("cbor: cannot add cbor.Tag to TagSet") + } + if contentType == typeRawTag { + return nil, errors.New("cbor: cannot add cbor.RawTag to TagSet") + } + if num == 0 || num == 1 { + return nil, errors.New("cbor: cannot add tag number 0 or 1 to TagSet, use EncOptions.TimeTag and DecOptions.TimeTag instead") + } + if num == 2 || num == 3 { + return nil, errors.New("cbor: cannot add tag number 2 or 3 to TagSet, it's built-in and supported automatically") + } + if num == tagNumSelfDescribedCBOR { + return nil, errors.New("cbor: cannot add tag number 55799 to TagSet, it's built-in and ignored automatically") + } + + te := tagItem{num: []uint64{num}, opts: opts, contentType: contentType} + te.num = append(te.num, nestedNum...) + + // Cache encoded tag numbers + e := getEncodeBuffer() + for _, n := range te.num { + encodeHead(e, byte(cborTypeTag), n) + } + te.cborTagNum = make([]byte, e.Len()) + copy(te.cborTagNum, e.Bytes()) + putEncodeBuffer(e) + + return &te, nil +} + +var ( + typeTag = reflect.TypeOf(Tag{}) + typeRawTag = reflect.TypeOf(RawTag{}) +) + +// WrongTagError describes mismatch between CBOR tag and registered tag. +type WrongTagError struct { + RegisteredType reflect.Type + RegisteredTagNum []uint64 + TagNum []uint64 +} + +func (e *WrongTagError) Error() string { + return fmt.Sprintf("cbor: wrong tag number for %s, got %v, expected %v", e.RegisteredType.String(), e.TagNum, e.RegisteredTagNum) +} diff --git a/vendor/github.com/fxamacker/cbor/v2/valid.go b/vendor/github.com/fxamacker/cbor/v2/valid.go new file mode 100644 index 0000000000000..b40793b95e3f2 --- /dev/null +++ b/vendor/github.com/fxamacker/cbor/v2/valid.go @@ -0,0 +1,394 @@ +// Copyright (c) Faye Amacker. All rights reserved. +// Licensed under the MIT License. See LICENSE in the project root for license information. + +package cbor + +import ( + "encoding/binary" + "errors" + "io" + "math" + "strconv" + + "github.com/x448/float16" +) + +// SyntaxError is a description of a CBOR syntax error. +type SyntaxError struct { + msg string +} + +func (e *SyntaxError) Error() string { return e.msg } + +// SemanticError is a description of a CBOR semantic error. +type SemanticError struct { + msg string +} + +func (e *SemanticError) Error() string { return e.msg } + +// MaxNestedLevelError indicates exceeded max nested level of any combination of CBOR arrays/maps/tags. +type MaxNestedLevelError struct { + maxNestedLevels int +} + +func (e *MaxNestedLevelError) Error() string { + return "cbor: exceeded max nested level " + strconv.Itoa(e.maxNestedLevels) +} + +// MaxArrayElementsError indicates exceeded max number of elements for CBOR arrays. +type MaxArrayElementsError struct { + maxArrayElements int +} + +func (e *MaxArrayElementsError) Error() string { + return "cbor: exceeded max number of elements " + strconv.Itoa(e.maxArrayElements) + " for CBOR array" +} + +// MaxMapPairsError indicates exceeded max number of key-value pairs for CBOR maps. +type MaxMapPairsError struct { + maxMapPairs int +} + +func (e *MaxMapPairsError) Error() string { + return "cbor: exceeded max number of key-value pairs " + strconv.Itoa(e.maxMapPairs) + " for CBOR map" +} + +// IndefiniteLengthError indicates found disallowed indefinite length items. +type IndefiniteLengthError struct { + t cborType +} + +func (e *IndefiniteLengthError) Error() string { + return "cbor: indefinite-length " + e.t.String() + " isn't allowed" +} + +// TagsMdError indicates found disallowed CBOR tags. +type TagsMdError struct { +} + +func (e *TagsMdError) Error() string { + return "cbor: CBOR tag isn't allowed" +} + +// ExtraneousDataError indicates found extraneous data following well-formed CBOR data item. +type ExtraneousDataError struct { + numOfBytes int // number of bytes of extraneous data + index int // location of extraneous data +} + +func (e *ExtraneousDataError) Error() string { + return "cbor: " + strconv.Itoa(e.numOfBytes) + " bytes of extraneous data starting at index " + strconv.Itoa(e.index) +} + +// wellformed checks whether the CBOR data item is well-formed. +// allowExtraData indicates if extraneous data is allowed after the CBOR data item. +// - use allowExtraData = true when using Decoder.Decode() +// - use allowExtraData = false when using Unmarshal() +func (d *decoder) wellformed(allowExtraData bool, checkBuiltinTags bool) error { + if len(d.data) == d.off { + return io.EOF + } + _, err := d.wellformedInternal(0, checkBuiltinTags) + if err == nil { + if !allowExtraData && d.off != len(d.data) { + err = &ExtraneousDataError{len(d.data) - d.off, d.off} + } + } + return err +} + +// wellformedInternal checks data's well-formedness and returns max depth and error. +func (d *decoder) wellformedInternal(depth int, checkBuiltinTags bool) (int, error) { //nolint:gocyclo + t, _, val, indefiniteLength, err := d.wellformedHeadWithIndefiniteLengthFlag() + if err != nil { + return 0, err + } + + switch t { + case cborTypeByteString, cborTypeTextString: + if indefiniteLength { + if d.dm.indefLength == IndefLengthForbidden { + return 0, &IndefiniteLengthError{t} + } + return d.wellformedIndefiniteString(t, depth, checkBuiltinTags) + } + valInt := int(val) + if valInt < 0 { + // Detect integer overflow + return 0, errors.New("cbor: " + t.String() + " length " + strconv.FormatUint(val, 10) + " is too large, causing integer overflow") + } + if len(d.data)-d.off < valInt { // valInt+off may overflow integer + return 0, io.ErrUnexpectedEOF + } + d.off += valInt + + case cborTypeArray, cborTypeMap: + depth++ + if depth > d.dm.maxNestedLevels { + return 0, &MaxNestedLevelError{d.dm.maxNestedLevels} + } + + if indefiniteLength { + if d.dm.indefLength == IndefLengthForbidden { + return 0, &IndefiniteLengthError{t} + } + return d.wellformedIndefiniteArrayOrMap(t, depth, checkBuiltinTags) + } + + valInt := int(val) + if valInt < 0 { + // Detect integer overflow + return 0, errors.New("cbor: " + t.String() + " length " + strconv.FormatUint(val, 10) + " is too large, it would cause integer overflow") + } + + if t == cborTypeArray { + if valInt > d.dm.maxArrayElements { + return 0, &MaxArrayElementsError{d.dm.maxArrayElements} + } + } else { + if valInt > d.dm.maxMapPairs { + return 0, &MaxMapPairsError{d.dm.maxMapPairs} + } + } + + count := 1 + if t == cborTypeMap { + count = 2 + } + maxDepth := depth + for j := 0; j < count; j++ { + for i := 0; i < valInt; i++ { + var dpt int + if dpt, err = d.wellformedInternal(depth, checkBuiltinTags); err != nil { + return 0, err + } + if dpt > maxDepth { + maxDepth = dpt // Save max depth + } + } + } + depth = maxDepth + + case cborTypeTag: + if d.dm.tagsMd == TagsForbidden { + return 0, &TagsMdError{} + } + + tagNum := val + + // Scan nested tag numbers to avoid recursion. + for { + if len(d.data) == d.off { // Tag number must be followed by tag content. + return 0, io.ErrUnexpectedEOF + } + if checkBuiltinTags { + err = validBuiltinTag(tagNum, d.data[d.off]) + if err != nil { + return 0, err + } + } + if d.dm.bignumTag == BignumTagForbidden && (tagNum == 2 || tagNum == 3) { + return 0, &UnacceptableDataItemError{ + CBORType: cborTypeTag.String(), + Message: "bignum", + } + } + if getType(d.data[d.off]) != cborTypeTag { + break + } + if _, _, tagNum, err = d.wellformedHead(); err != nil { + return 0, err + } + depth++ + if depth > d.dm.maxNestedLevels { + return 0, &MaxNestedLevelError{d.dm.maxNestedLevels} + } + } + // Check tag content. + return d.wellformedInternal(depth, checkBuiltinTags) + } + + return depth, nil +} + +// wellformedIndefiniteString checks indefinite length byte/text string's well-formedness and returns max depth and error. +func (d *decoder) wellformedIndefiniteString(t cborType, depth int, checkBuiltinTags bool) (int, error) { + var err error + for { + if len(d.data) == d.off { + return 0, io.ErrUnexpectedEOF + } + if isBreakFlag(d.data[d.off]) { + d.off++ + break + } + // Peek ahead to get next type and indefinite length status. + nt, ai := parseInitialByte(d.data[d.off]) + if t != nt { + return 0, &SyntaxError{"cbor: wrong element type " + nt.String() + " for indefinite-length " + t.String()} + } + if additionalInformation(ai).isIndefiniteLength() { + return 0, &SyntaxError{"cbor: indefinite-length " + t.String() + " chunk is not definite-length"} + } + if depth, err = d.wellformedInternal(depth, checkBuiltinTags); err != nil { + return 0, err + } + } + return depth, nil +} + +// wellformedIndefiniteArrayOrMap checks indefinite length array/map's well-formedness and returns max depth and error. +func (d *decoder) wellformedIndefiniteArrayOrMap(t cborType, depth int, checkBuiltinTags bool) (int, error) { + var err error + maxDepth := depth + i := 0 + for { + if len(d.data) == d.off { + return 0, io.ErrUnexpectedEOF + } + if isBreakFlag(d.data[d.off]) { + d.off++ + break + } + var dpt int + if dpt, err = d.wellformedInternal(depth, checkBuiltinTags); err != nil { + return 0, err + } + if dpt > maxDepth { + maxDepth = dpt + } + i++ + if t == cborTypeArray { + if i > d.dm.maxArrayElements { + return 0, &MaxArrayElementsError{d.dm.maxArrayElements} + } + } else { + if i%2 == 0 && i/2 > d.dm.maxMapPairs { + return 0, &MaxMapPairsError{d.dm.maxMapPairs} + } + } + } + if t == cborTypeMap && i%2 == 1 { + return 0, &SyntaxError{"cbor: unexpected \"break\" code"} + } + return maxDepth, nil +} + +func (d *decoder) wellformedHeadWithIndefiniteLengthFlag() ( + t cborType, + ai byte, + val uint64, + indefiniteLength bool, + err error, +) { + t, ai, val, err = d.wellformedHead() + if err != nil { + return + } + indefiniteLength = additionalInformation(ai).isIndefiniteLength() + return +} + +func (d *decoder) wellformedHead() (t cborType, ai byte, val uint64, err error) { + dataLen := len(d.data) - d.off + if dataLen == 0 { + return 0, 0, 0, io.ErrUnexpectedEOF + } + + t, ai = parseInitialByte(d.data[d.off]) + val = uint64(ai) + d.off++ + dataLen-- + + if ai <= maxAdditionalInformationWithoutArgument { + return t, ai, val, nil + } + + if ai == additionalInformationWith1ByteArgument { + const argumentSize = 1 + if dataLen < argumentSize { + return 0, 0, 0, io.ErrUnexpectedEOF + } + val = uint64(d.data[d.off]) + d.off++ + if t == cborTypePrimitives && val < 32 { + return 0, 0, 0, &SyntaxError{"cbor: invalid simple value " + strconv.Itoa(int(val)) + " for type " + t.String()} + } + return t, ai, val, nil + } + + if ai == additionalInformationWith2ByteArgument { + const argumentSize = 2 + if dataLen < argumentSize { + return 0, 0, 0, io.ErrUnexpectedEOF + } + val = uint64(binary.BigEndian.Uint16(d.data[d.off : d.off+argumentSize])) + d.off += argumentSize + if t == cborTypePrimitives { + if err := d.acceptableFloat(float64(float16.Frombits(uint16(val)).Float32())); err != nil { + return 0, 0, 0, err + } + } + return t, ai, val, nil + } + + if ai == additionalInformationWith4ByteArgument { + const argumentSize = 4 + if dataLen < argumentSize { + return 0, 0, 0, io.ErrUnexpectedEOF + } + val = uint64(binary.BigEndian.Uint32(d.data[d.off : d.off+argumentSize])) + d.off += argumentSize + if t == cborTypePrimitives { + if err := d.acceptableFloat(float64(math.Float32frombits(uint32(val)))); err != nil { + return 0, 0, 0, err + } + } + return t, ai, val, nil + } + + if ai == additionalInformationWith8ByteArgument { + const argumentSize = 8 + if dataLen < argumentSize { + return 0, 0, 0, io.ErrUnexpectedEOF + } + val = binary.BigEndian.Uint64(d.data[d.off : d.off+argumentSize]) + d.off += argumentSize + if t == cborTypePrimitives { + if err := d.acceptableFloat(math.Float64frombits(val)); err != nil { + return 0, 0, 0, err + } + } + return t, ai, val, nil + } + + if additionalInformation(ai).isIndefiniteLength() { + switch t { + case cborTypePositiveInt, cborTypeNegativeInt, cborTypeTag: + return 0, 0, 0, &SyntaxError{"cbor: invalid additional information " + strconv.Itoa(int(ai)) + " for type " + t.String()} + case cborTypePrimitives: // 0xff (break code) should not be outside wellformedIndefinite(). + return 0, 0, 0, &SyntaxError{"cbor: unexpected \"break\" code"} + } + return t, ai, val, nil + } + + // ai == 28, 29, 30 + return 0, 0, 0, &SyntaxError{"cbor: invalid additional information " + strconv.Itoa(int(ai)) + " for type " + t.String()} +} + +func (d *decoder) acceptableFloat(f float64) error { + switch { + case d.dm.nanDec == NaNDecodeForbidden && math.IsNaN(f): + return &UnacceptableDataItemError{ + CBORType: cborTypePrimitives.String(), + Message: "floating-point NaN", + } + case d.dm.infDec == InfDecodeForbidden && math.IsInf(f, 0): + return &UnacceptableDataItemError{ + CBORType: cborTypePrimitives.String(), + Message: "floating-point infinity", + } + } + return nil +} diff --git a/vendor/github.com/x448/float16/.travis.yml b/vendor/github.com/x448/float16/.travis.yml new file mode 100644 index 0000000000000..8902bdaaffc2d --- /dev/null +++ b/vendor/github.com/x448/float16/.travis.yml @@ -0,0 +1,13 @@ +language: go + +go: + - 1.11.x + +env: + - GO111MODULE=on + +script: + - go test -short -coverprofile=coverage.txt -covermode=count ./... + +after_success: + - bash <(curl -s https://codecov.io/bash) diff --git a/vendor/github.com/x448/float16/LICENSE b/vendor/github.com/x448/float16/LICENSE new file mode 100644 index 0000000000000..bf6e357854a0a --- /dev/null +++ b/vendor/github.com/x448/float16/LICENSE @@ -0,0 +1,22 @@ +MIT License + +Copyright (c) 2019 Montgomery Edwards⁴⁴⁸ and Faye Amacker + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. + diff --git a/vendor/github.com/x448/float16/README.md b/vendor/github.com/x448/float16/README.md new file mode 100644 index 0000000000000..b524b8135d58d --- /dev/null +++ b/vendor/github.com/x448/float16/README.md @@ -0,0 +1,133 @@ +# Float16 (Binary16) in Go/Golang +[![Build Status](https://travis-ci.org/x448/float16.svg?branch=master)](https://travis-ci.org/x448/float16) +[![codecov](https://codecov.io/gh/x448/float16/branch/master/graph/badge.svg?v=4)](https://codecov.io/gh/x448/float16) +[![Go Report Card](https://goreportcard.com/badge/github.com/x448/float16)](https://goreportcard.com/report/github.com/x448/float16) +[![Release](https://img.shields.io/github/release/x448/float16.svg?style=flat-square)](https://github.com/x448/float16/releases) +[![License](http://img.shields.io/badge/license-mit-blue.svg?style=flat-square)](https://raw.githubusercontent.com/x448/float16/master/LICENSE) + +`float16` package provides [IEEE 754 half-precision floating-point format (binary16)](https://en.wikipedia.org/wiki/Half-precision_floating-point_format) with IEEE 754 default rounding for conversions. IEEE 754-2008 refers to this 16-bit floating-point format as binary16. + +IEEE 754 default rounding ("Round-to-Nearest RoundTiesToEven") is considered the most accurate and statistically unbiased estimate of the true result. + +All possible 4+ billion floating-point conversions with this library are verified to be correct. + +Lowercase "float16" refers to IEEE 754 binary16. And capitalized "Float16" refers to exported Go data type provided by this library. + +## Features +Current features include: + +* float16 to float32 conversions use lossless conversion. +* float32 to float16 conversions use IEEE 754-2008 "Round-to-Nearest RoundTiesToEven". +* conversions using pure Go take about 2.65 ns/op on a desktop amd64. +* unit tests provide 100% code coverage and check all possible 4+ billion conversions. +* other functions include: IsInf(), IsNaN(), IsNormal(), PrecisionFromfloat32(), String(), etc. +* all functions in this library use zero allocs except String(). + +## Status +This library is used by [fxamacker/cbor](https://github.com/fxamacker/cbor) and is ready for production use on supported platforms. The version number < 1.0 indicates more functions and options are planned but not yet published. + +Current status: + +* core API is done and breaking API changes are unlikely. +* 100% of unit tests pass: + * short mode (`go test -short`) tests around 65765 conversions in 0.005s. + * normal mode (`go test`) tests all possible 4+ billion conversions in about 95s. +* 100% code coverage with both short mode and normal mode. +* tested on amd64 but it should work on all little-endian platforms supported by Go. + +Roadmap: + +* add functions for fast batch conversions leveraging SIMD when supported by hardware. +* speed up unit test when verifying all possible 4+ billion conversions. +* test on additional platforms. + +## Float16 to Float32 Conversion +Conversions from float16 to float32 are lossless conversions. All 65536 possible float16 to float32 conversions (in pure Go) are confirmed to be correct. + +Unit tests take a fraction of a second to check all 65536 expected values for float16 to float32 conversions. + +## Float32 to Float16 Conversion +Conversions from float32 to float16 use IEEE 754 default rounding ("Round-to-Nearest RoundTiesToEven"). All 4294967296 possible float32 to float16 conversions (in pure Go) are confirmed to be correct. + +Unit tests in normal mode take about 1-2 minutes to check all 4+ billion float32 input values and results for Fromfloat32(), FromNaN32ps(), and PrecisionFromfloat32(). + +Unit tests in short mode use a small subset (around 229 float32 inputs) and finish in under 0.01 second while still reaching 100% code coverage. + +## Usage +Install with `go get github.com/x448/float16`. +``` +// Convert float32 to float16 +pi := float32(math.Pi) +pi16 := float16.Fromfloat32(pi) + +// Convert float16 to float32 +pi32 := pi16.Float32() + +// PrecisionFromfloat32() is faster than the overhead of calling a function. +// This example only converts if there's no data loss and input is not a subnormal. +if float16.PrecisionFromfloat32(pi) == float16.PrecisionExact { + pi16 := float16.Fromfloat32(pi) +} +``` + +## Float16 Type and API +Float16 (capitalized) is a Go type with uint16 as the underlying state. There are 6 exported functions and 9 exported methods. +``` +package float16 // import "github.com/x448/float16" + +// Exported types and consts +type Float16 uint16 +const ErrInvalidNaNValue = float16Error("float16: invalid NaN value, expected IEEE 754 NaN") + +// Exported functions +Fromfloat32(f32 float32) Float16 // Float16 number converted from f32 using IEEE 754 default rounding + with identical results to AMD and Intel F16C hardware. NaN inputs + are converted with quiet bit always set on, to be like F16C. + +FromNaN32ps(nan float32) (Float16, error) // Float16 NaN without modifying quiet bit. + // The "ps" suffix means "preserve signaling". + // Returns sNaN and ErrInvalidNaNValue if nan isn't a NaN. + +Frombits(b16 uint16) Float16 // Float16 number corresponding to b16 (IEEE 754 binary16 rep.) +NaN() Float16 // Float16 of IEEE 754 binary16 not-a-number +Inf(sign int) Float16 // Float16 of IEEE 754 binary16 infinity according to sign + +PrecisionFromfloat32(f32 float32) Precision // quickly indicates exact, ..., overflow, underflow + // (inline and < 1 ns/op) +// Exported methods +(f Float16) Float32() float32 // float32 number converted from f16 using lossless conversion +(f Float16) Bits() uint16 // the IEEE 754 binary16 representation of f +(f Float16) IsNaN() bool // true if f is not-a-number (NaN) +(f Float16) IsQuietNaN() bool // true if f is a quiet not-a-number (NaN) +(f Float16) IsInf(sign int) bool // true if f is infinite based on sign (-1=NegInf, 0=any, 1=PosInf) +(f Float16) IsFinite() bool // true if f is not infinite or NaN +(f Float16) IsNormal() bool // true if f is not zero, infinite, subnormal, or NaN. +(f Float16) Signbit() bool // true if f is negative or negative zero +(f Float16) String() string // string representation of f to satisfy fmt.Stringer interface +``` +See [API](https://godoc.org/github.com/x448/float16) at godoc.org for more info. + +## Benchmarks +Conversions (in pure Go) are around 2.65 ns/op for float16 -> float32 and float32 -> float16 on amd64. Speeds can vary depending on input value. + +``` +All functions have zero allocations except float16.String(). + +FromFloat32pi-2 2.59ns ± 0% // speed using Fromfloat32() to convert a float32 of math.Pi to Float16 +ToFloat32pi-2 2.69ns ± 0% // speed using Float32() to convert a float16 of math.Pi to float32 +Frombits-2 0.29ns ± 5% // speed using Frombits() to cast a uint16 to Float16 + +PrecisionFromFloat32-2 0.29ns ± 1% // speed using PrecisionFromfloat32() to check for overflows, etc. +``` + +## System Requirements +* Tested on Go 1.11, 1.12, and 1.13 but it should also work with older versions. +* Tested on amd64 but it should also work on all little-endian platforms supported by Go. + +## Special Thanks +Special thanks to Kathryn Long (starkat99) for creating [half-rs](https://github.com/starkat99/half-rs), a very nice rust implementation of float16. + +## License +Copyright (c) 2019 Montgomery Edwards⁴⁴⁸ and Faye Amacker + +Licensed under [MIT License](LICENSE) diff --git a/vendor/github.com/x448/float16/float16.go b/vendor/github.com/x448/float16/float16.go new file mode 100644 index 0000000000000..1a0e6dad00466 --- /dev/null +++ b/vendor/github.com/x448/float16/float16.go @@ -0,0 +1,302 @@ +// Copyright 2019 Montgomery Edwards⁴⁴⁸ and Faye Amacker +// +// Special thanks to Kathryn Long for her Rust implementation +// of float16 at github.com/starkat99/half-rs (MIT license) + +package float16 + +import ( + "math" + "strconv" +) + +// Float16 represents IEEE 754 half-precision floating-point numbers (binary16). +type Float16 uint16 + +// Precision indicates whether the conversion to Float16 is +// exact, subnormal without dropped bits, inexact, underflow, or overflow. +type Precision int + +const ( + + // PrecisionExact is for non-subnormals that don't drop bits during conversion. + // All of these can round-trip. Should always convert to float16. + PrecisionExact Precision = iota + + // PrecisionUnknown is for subnormals that don't drop bits during conversion but + // not all of these can round-trip so precision is unknown without more effort. + // Only 2046 of these can round-trip and the rest cannot round-trip. + PrecisionUnknown + + // PrecisionInexact is for dropped significand bits and cannot round-trip. + // Some of these are subnormals. Cannot round-trip float32->float16->float32. + PrecisionInexact + + // PrecisionUnderflow is for Underflows. Cannot round-trip float32->float16->float32. + PrecisionUnderflow + + // PrecisionOverflow is for Overflows. Cannot round-trip float32->float16->float32. + PrecisionOverflow +) + +// PrecisionFromfloat32 returns Precision without performing +// the conversion. Conversions from both Infinity and NaN +// values will always report PrecisionExact even if NaN payload +// or NaN-Quiet-Bit is lost. This function is kept simple to +// allow inlining and run < 0.5 ns/op, to serve as a fast filter. +func PrecisionFromfloat32(f32 float32) Precision { + u32 := math.Float32bits(f32) + + if u32 == 0 || u32 == 0x80000000 { + // +- zero will always be exact conversion + return PrecisionExact + } + + const COEFMASK uint32 = 0x7fffff // 23 least significant bits + const EXPSHIFT uint32 = 23 + const EXPBIAS uint32 = 127 + const EXPMASK uint32 = uint32(0xff) << EXPSHIFT + const DROPMASK uint32 = COEFMASK >> 10 + + exp := int32(((u32 & EXPMASK) >> EXPSHIFT) - EXPBIAS) + coef := u32 & COEFMASK + + if exp == 128 { + // +- infinity or NaN + // apps may want to do extra checks for NaN separately + return PrecisionExact + } + + // https://en.wikipedia.org/wiki/Half-precision_floating-point_format says, + // "Decimals between 2^−24 (minimum positive subnormal) and 2^−14 (maximum subnormal): fixed interval 2^−24" + if exp < -24 { + return PrecisionUnderflow + } + if exp > 15 { + return PrecisionOverflow + } + if (coef & DROPMASK) != uint32(0) { + // these include subnormals and non-subnormals that dropped bits + return PrecisionInexact + } + + if exp < -14 { + // Subnormals. Caller may want to test these further. + // There are 2046 subnormals that can successfully round-trip f32->f16->f32 + // and 20 of those 2046 have 32-bit input coef == 0. + // RFC 7049 and 7049bis Draft 12 don't precisely define "preserves value" + // so some protocols and libraries will choose to handle subnormals differently + // when deciding to encode them to CBOR float32 vs float16. + return PrecisionUnknown + } + + return PrecisionExact +} + +// Frombits returns the float16 number corresponding to the IEEE 754 binary16 +// representation u16, with the sign bit of u16 and the result in the same bit +// position. Frombits(Bits(x)) == x. +func Frombits(u16 uint16) Float16 { + return Float16(u16) +} + +// Fromfloat32 returns a Float16 value converted from f32. Conversion uses +// IEEE default rounding (nearest int, with ties to even). +func Fromfloat32(f32 float32) Float16 { + return Float16(f32bitsToF16bits(math.Float32bits(f32))) +} + +// ErrInvalidNaNValue indicates a NaN was not received. +const ErrInvalidNaNValue = float16Error("float16: invalid NaN value, expected IEEE 754 NaN") + +type float16Error string + +func (e float16Error) Error() string { return string(e) } + +// FromNaN32ps converts nan to IEEE binary16 NaN while preserving both +// signaling and payload. Unlike Fromfloat32(), which can only return +// qNaN because it sets quiet bit = 1, this can return both sNaN and qNaN. +// If the result is infinity (sNaN with empty payload), then the +// lowest bit of payload is set to make the result a NaN. +// Returns ErrInvalidNaNValue and 0x7c01 (sNaN) if nan isn't IEEE 754 NaN. +// This function was kept simple to be able to inline. +func FromNaN32ps(nan float32) (Float16, error) { + const SNAN = Float16(uint16(0x7c01)) // signalling NaN + + u32 := math.Float32bits(nan) + sign := u32 & 0x80000000 + exp := u32 & 0x7f800000 + coef := u32 & 0x007fffff + + if (exp != 0x7f800000) || (coef == 0) { + return SNAN, ErrInvalidNaNValue + } + + u16 := uint16((sign >> 16) | uint32(0x7c00) | (coef >> 13)) + + if (u16 & 0x03ff) == 0 { + // result became infinity, make it NaN by setting lowest bit in payload + u16 = u16 | 0x0001 + } + + return Float16(u16), nil +} + +// NaN returns a Float16 of IEEE 754 binary16 not-a-number (NaN). +// Returned NaN value 0x7e01 has all exponent bits = 1 with the +// first and last bits = 1 in the significand. This is consistent +// with Go's 64-bit math.NaN(). Canonical CBOR in RFC 7049 uses 0x7e00. +func NaN() Float16 { + return Float16(0x7e01) +} + +// Inf returns a Float16 with an infinity value with the specified sign. +// A sign >= returns positive infinity. +// A sign < 0 returns negative infinity. +func Inf(sign int) Float16 { + if sign >= 0 { + return Float16(0x7c00) + } + return Float16(0x8000 | 0x7c00) +} + +// Float32 returns a float32 converted from f (Float16). +// This is a lossless conversion. +func (f Float16) Float32() float32 { + u32 := f16bitsToF32bits(uint16(f)) + return math.Float32frombits(u32) +} + +// Bits returns the IEEE 754 binary16 representation of f, with the sign bit +// of f and the result in the same bit position. Bits(Frombits(x)) == x. +func (f Float16) Bits() uint16 { + return uint16(f) +} + +// IsNaN reports whether f is an IEEE 754 binary16 “not-a-number” value. +func (f Float16) IsNaN() bool { + return (f&0x7c00 == 0x7c00) && (f&0x03ff != 0) +} + +// IsQuietNaN reports whether f is a quiet (non-signaling) IEEE 754 binary16 +// “not-a-number” value. +func (f Float16) IsQuietNaN() bool { + return (f&0x7c00 == 0x7c00) && (f&0x03ff != 0) && (f&0x0200 != 0) +} + +// IsInf reports whether f is an infinity (inf). +// A sign > 0 reports whether f is positive inf. +// A sign < 0 reports whether f is negative inf. +// A sign == 0 reports whether f is either inf. +func (f Float16) IsInf(sign int) bool { + return ((f == 0x7c00) && sign >= 0) || + (f == 0xfc00 && sign <= 0) +} + +// IsFinite returns true if f is neither infinite nor NaN. +func (f Float16) IsFinite() bool { + return (uint16(f) & uint16(0x7c00)) != uint16(0x7c00) +} + +// IsNormal returns true if f is neither zero, infinite, subnormal, or NaN. +func (f Float16) IsNormal() bool { + exp := uint16(f) & uint16(0x7c00) + return (exp != uint16(0x7c00)) && (exp != 0) +} + +// Signbit reports whether f is negative or negative zero. +func (f Float16) Signbit() bool { + return (uint16(f) & uint16(0x8000)) != 0 +} + +// String satisfies the fmt.Stringer interface. +func (f Float16) String() string { + return strconv.FormatFloat(float64(f.Float32()), 'f', -1, 32) +} + +// f16bitsToF32bits returns uint32 (float32 bits) converted from specified uint16. +func f16bitsToF32bits(in uint16) uint32 { + // All 65536 conversions with this were confirmed to be correct + // by Montgomery Edwards⁴⁴⁸ (github.com/x448). + + sign := uint32(in&0x8000) << 16 // sign for 32-bit + exp := uint32(in&0x7c00) >> 10 // exponenent for 16-bit + coef := uint32(in&0x03ff) << 13 // significand for 32-bit + + if exp == 0x1f { + if coef == 0 { + // infinity + return sign | 0x7f800000 | coef + } + // NaN + return sign | 0x7fc00000 | coef + } + + if exp == 0 { + if coef == 0 { + // zero + return sign + } + + // normalize subnormal numbers + exp++ + for coef&0x7f800000 == 0 { + coef <<= 1 + exp-- + } + coef &= 0x007fffff + } + + return sign | ((exp + (0x7f - 0xf)) << 23) | coef +} + +// f32bitsToF16bits returns uint16 (Float16 bits) converted from the specified float32. +// Conversion rounds to nearest integer with ties to even. +func f32bitsToF16bits(u32 uint32) uint16 { + // Translated from Rust to Go by Montgomery Edwards⁴⁴⁸ (github.com/x448). + // All 4294967296 conversions with this were confirmed to be correct by x448. + // Original Rust implementation is by Kathryn Long (github.com/starkat99) with MIT license. + + sign := u32 & 0x80000000 + exp := u32 & 0x7f800000 + coef := u32 & 0x007fffff + + if exp == 0x7f800000 { + // NaN or Infinity + nanBit := uint32(0) + if coef != 0 { + nanBit = uint32(0x0200) + } + return uint16((sign >> 16) | uint32(0x7c00) | nanBit | (coef >> 13)) + } + + halfSign := sign >> 16 + + unbiasedExp := int32(exp>>23) - 127 + halfExp := unbiasedExp + 15 + + if halfExp >= 0x1f { + return uint16(halfSign | uint32(0x7c00)) + } + + if halfExp <= 0 { + if 14-halfExp > 24 { + return uint16(halfSign) + } + coef := coef | uint32(0x00800000) + halfCoef := coef >> uint32(14-halfExp) + roundBit := uint32(1) << uint32(13-halfExp) + if (coef&roundBit) != 0 && (coef&(3*roundBit-1)) != 0 { + halfCoef++ + } + return uint16(halfSign | halfCoef) + } + + uHalfExp := uint32(halfExp) << 10 + halfCoef := coef >> 13 + roundBit := uint32(0x00001000) + if (coef&roundBit) != 0 && (coef&(3*roundBit-1)) != 0 { + return uint16((halfSign | uHalfExp | halfCoef) + 1) + } + return uint16(halfSign | uHalfExp | halfCoef) +} diff --git a/vendor/k8s.io/apimachinery/pkg/api/resource/generated.pb.go b/vendor/k8s.io/apimachinery/pkg/api/resource/generated.pb.go index 53a25d34490ce..c3a272168e861 100644 --- a/vendor/k8s.io/apimachinery/pkg/api/resource/generated.pb.go +++ b/vendor/k8s.io/apimachinery/pkg/api/resource/generated.pb.go @@ -15,7 +15,7 @@ limitations under the License. */ // Code generated by protoc-gen-gogo. DO NOT EDIT. -// source: k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/api/resource/generated.proto +// source: k8s.io/apimachinery/pkg/api/resource/generated.proto package resource @@ -41,7 +41,7 @@ const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package func (m *Quantity) Reset() { *m = Quantity{} } func (*Quantity) ProtoMessage() {} func (*Quantity) Descriptor() ([]byte, []int) { - return fileDescriptor_612bba87bd70906c, []int{0} + return fileDescriptor_7288c78ff45111e9, []int{0} } func (m *Quantity) XXX_Unmarshal(b []byte) error { return xxx_messageInfo_Quantity.Unmarshal(m, b) @@ -64,7 +64,7 @@ var xxx_messageInfo_Quantity proto.InternalMessageInfo func (m *QuantityValue) Reset() { *m = QuantityValue{} } func (*QuantityValue) ProtoMessage() {} func (*QuantityValue) Descriptor() ([]byte, []int) { - return fileDescriptor_612bba87bd70906c, []int{1} + return fileDescriptor_7288c78ff45111e9, []int{1} } func (m *QuantityValue) XXX_Unmarshal(b []byte) error { return xxx_messageInfo_QuantityValue.Unmarshal(m, b) @@ -90,25 +90,24 @@ func init() { } func init() { - proto.RegisterFile("k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/api/resource/generated.proto", fileDescriptor_612bba87bd70906c) + proto.RegisterFile("k8s.io/apimachinery/pkg/api/resource/generated.proto", fileDescriptor_7288c78ff45111e9) } -var fileDescriptor_612bba87bd70906c = []byte{ - // 254 bytes of a gzipped FileDescriptorProto - 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xf2, 0xcd, 0xb6, 0x28, 0xd6, - 0xcb, 0xcc, 0xd7, 0xcf, 0x2e, 0x4d, 0x4a, 0x2d, 0xca, 0x4b, 0x2d, 0x49, 0x2d, 0xd6, 0x2f, 0x4b, - 0xcd, 0x4b, 0xc9, 0x2f, 0xd2, 0x87, 0x4a, 0x24, 0x16, 0x64, 0xe6, 0x26, 0x26, 0x67, 0x64, 0xe6, - 0xa5, 0x16, 0x55, 0xea, 0x17, 0x64, 0xa7, 0x83, 0x04, 0xf4, 0x8b, 0x52, 0x8b, 0xf3, 0x4b, 0x8b, - 0x92, 0x53, 0xf5, 0xd3, 0x53, 0xf3, 0x52, 0x8b, 0x12, 0x4b, 0x52, 0x53, 0xf4, 0x0a, 0x8a, 0xf2, - 0x4b, 0xf2, 0x85, 0x54, 0x20, 0xba, 0xf4, 0x90, 0x75, 0xe9, 0x15, 0x64, 0xa7, 0x83, 0x04, 0xf4, - 0x60, 0xba, 0xa4, 0x74, 0xd3, 0x33, 0x4b, 0x32, 0x4a, 0x93, 0xf4, 0x92, 0xf3, 0x73, 0xf5, 0xd3, - 0xf3, 0xd3, 0xf3, 0xf5, 0xc1, 0x9a, 0x93, 0x4a, 0xd3, 0xc0, 0x3c, 0x30, 0x07, 0xcc, 0x82, 0x18, - 0xaa, 0x64, 0xc1, 0xc5, 0x11, 0x58, 0x9a, 0x98, 0x57, 0x92, 0x59, 0x52, 0x29, 0x24, 0xc6, 0xc5, - 0x56, 0x5c, 0x52, 0x94, 0x99, 0x97, 0x2e, 0xc1, 0xa8, 0xc0, 0xa8, 0xc1, 0x19, 0x04, 0xe5, 0x59, - 0x89, 0xcc, 0x58, 0x20, 0xcf, 0xd0, 0xb1, 0x50, 0x9e, 0x61, 0xc2, 0x42, 0x79, 0x86, 0x05, 0x0b, - 0xe5, 0x19, 0x1a, 0xee, 0x28, 0x30, 0x28, 0xd9, 0x72, 0xf1, 0xc2, 0x74, 0x86, 0x25, 0xe6, 0x94, - 0xa6, 0x92, 0xa6, 0xdd, 0xc9, 0xeb, 0xc4, 0x43, 0x39, 0x86, 0x0b, 0x0f, 0xe5, 0x18, 0x6e, 0x3c, - 0x94, 0x63, 0x68, 0x78, 0x24, 0xc7, 0x78, 0xe2, 0x91, 0x1c, 0xe3, 0x85, 0x47, 0x72, 0x8c, 0x37, - 0x1e, 0xc9, 0x31, 0x3e, 0x78, 0x24, 0xc7, 0x38, 0xe1, 0xb1, 0x1c, 0x43, 0x94, 0x0a, 0x31, 0x21, - 0x05, 0x08, 0x00, 0x00, 0xff, 0xff, 0x8e, 0x70, 0x98, 0xa3, 0x69, 0x01, 0x00, 0x00, +var fileDescriptor_7288c78ff45111e9 = []byte{ + // 234 bytes of a gzipped FileDescriptorProto + 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x32, 0xc9, 0xb6, 0x28, 0xd6, + 0xcb, 0xcc, 0xd7, 0x4f, 0x2c, 0xc8, 0xcc, 0x4d, 0x4c, 0xce, 0xc8, 0xcc, 0x4b, 0x2d, 0xaa, 0xd4, + 0x2f, 0xc8, 0x4e, 0x07, 0x09, 0xe8, 0x17, 0xa5, 0x16, 0xe7, 0x97, 0x16, 0x25, 0xa7, 0xea, 0xa7, + 0xa7, 0xe6, 0xa5, 0x16, 0x25, 0x96, 0xa4, 0xa6, 0xe8, 0x15, 0x14, 0xe5, 0x97, 0xe4, 0x0b, 0xa9, + 0x40, 0x74, 0xe9, 0x21, 0xeb, 0xd2, 0x2b, 0xc8, 0x4e, 0x07, 0x09, 0xe8, 0xc1, 0x74, 0x49, 0xe9, + 0xa6, 0x67, 0x96, 0x64, 0x94, 0x26, 0xe9, 0x25, 0xe7, 0xe7, 0xea, 0xa7, 0xe7, 0xa7, 0xe7, 0xeb, + 0x83, 0x35, 0x27, 0x95, 0xa6, 0x81, 0x79, 0x60, 0x0e, 0x98, 0x05, 0x31, 0x54, 0xc9, 0x82, 0x8b, + 0x23, 0xb0, 0x34, 0x31, 0xaf, 0x24, 0xb3, 0xa4, 0x52, 0x48, 0x8c, 0x8b, 0xad, 0xb8, 0xa4, 0x28, + 0x33, 0x2f, 0x5d, 0x82, 0x51, 0x81, 0x51, 0x83, 0x33, 0x08, 0xca, 0xb3, 0x12, 0x99, 0xb1, 0x40, + 0x9e, 0xa1, 0x63, 0xa1, 0x3c, 0xc3, 0x84, 0x85, 0xf2, 0x0c, 0x0b, 0x16, 0xca, 0x33, 0x34, 0xdc, + 0x51, 0x60, 0x50, 0xb2, 0xe5, 0xe2, 0x85, 0xe9, 0x0c, 0x4b, 0xcc, 0x29, 0x4d, 0x25, 0x4d, 0xbb, + 0x93, 0xd7, 0x89, 0x87, 0x72, 0x0c, 0x17, 0x1e, 0xca, 0x31, 0xdc, 0x78, 0x28, 0xc7, 0xd0, 0xf0, + 0x48, 0x8e, 0xf1, 0xc4, 0x23, 0x39, 0xc6, 0x0b, 0x8f, 0xe4, 0x18, 0x6f, 0x3c, 0x92, 0x63, 0x7c, + 0xf0, 0x48, 0x8e, 0x71, 0xc2, 0x63, 0x39, 0x86, 0x28, 0x15, 0x62, 0x42, 0x0a, 0x10, 0x00, 0x00, + 0xff, 0xff, 0x50, 0x91, 0xd0, 0x9c, 0x50, 0x01, 0x00, 0x00, } diff --git a/vendor/k8s.io/apimachinery/pkg/api/resource/quantity.go b/vendor/k8s.io/apimachinery/pkg/api/resource/quantity.go index 69f1bc336d36b..50af8334f01b8 100644 --- a/vendor/k8s.io/apimachinery/pkg/api/resource/quantity.go +++ b/vendor/k8s.io/apimachinery/pkg/api/resource/quantity.go @@ -25,6 +25,8 @@ import ( "strconv" "strings" + cbor "k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct" + inf "gopkg.in/inf.v0" ) @@ -683,6 +685,12 @@ func (q Quantity) MarshalJSON() ([]byte, error) { return result, nil } +func (q Quantity) MarshalCBOR() ([]byte, error) { + // The call to String() should never return the string "" because the receiver's + // address will never be nil. + return cbor.Marshal(q.String()) +} + // ToUnstructured implements the value.UnstructuredConverter interface. func (q Quantity) ToUnstructured() interface{} { return q.String() @@ -711,6 +719,27 @@ func (q *Quantity) UnmarshalJSON(value []byte) error { return nil } +func (q *Quantity) UnmarshalCBOR(value []byte) error { + var s *string + if err := cbor.Unmarshal(value, &s); err != nil { + return err + } + + if s == nil { + q.d.Dec = nil + q.i = int64Amount{} + return nil + } + + parsed, err := ParseQuantity(strings.TrimSpace(*s)) + if err != nil { + return err + } + + *q = parsed + return nil +} + // NewDecimalQuantity returns a new Quantity representing the given // value in the given format. func NewDecimalQuantity(b inf.Dec, format Format) *Quantity { diff --git a/vendor/k8s.io/apimachinery/pkg/api/validation/OWNERS b/vendor/k8s.io/apimachinery/pkg/api/validation/OWNERS new file mode 100644 index 0000000000000..40237324761f0 --- /dev/null +++ b/vendor/k8s.io/apimachinery/pkg/api/validation/OWNERS @@ -0,0 +1,11 @@ +# See the OWNERS docs at https://go.k8s.io/owners + +# Disable inheritance as this is an api owners file +options: + no_parent_owners: true +approvers: + - api-approvers +reviewers: + - api-reviewers +labels: + - kind/api-change diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/controller_ref.go b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/controller_ref.go index 15b45ffa84b82..5005beb12db24 100644 --- a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/controller_ref.go +++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/controller_ref.go @@ -18,6 +18,7 @@ package v1 import ( "k8s.io/apimachinery/pkg/runtime/schema" + "k8s.io/utils/ptr" ) // IsControlledBy checks if the object has a controllerRef set to the given owner @@ -36,10 +37,14 @@ func GetControllerOf(controllee Object) *OwnerReference { return nil } cp := *ref + cp.Controller = ptr.To(*ref.Controller) + if ref.BlockOwnerDeletion != nil { + cp.BlockOwnerDeletion = ptr.To(*ref.BlockOwnerDeletion) + } return &cp } -// GetControllerOf returns a pointer to the controllerRef if controllee has a controller +// GetControllerOfNoCopy returns a pointer to the controllerRef if controllee has a controller func GetControllerOfNoCopy(controllee Object) *OwnerReference { refs := controllee.GetOwnerReferences() for i := range refs { @@ -52,14 +57,12 @@ func GetControllerOfNoCopy(controllee Object) *OwnerReference { // NewControllerRef creates an OwnerReference pointing to the given owner. func NewControllerRef(owner Object, gvk schema.GroupVersionKind) *OwnerReference { - blockOwnerDeletion := true - isController := true return &OwnerReference{ APIVersion: gvk.GroupVersion().String(), Kind: gvk.Kind, Name: owner.GetName(), UID: owner.GetUID(), - BlockOwnerDeletion: &blockOwnerDeletion, - Controller: &isController, + BlockOwnerDeletion: ptr.To(true), + Controller: ptr.To(true), } } diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/generated.pb.go b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/generated.pb.go index 1a641e7c1229a..229ea2c2c2076 100644 --- a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/generated.pb.go +++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/generated.pb.go @@ -15,7 +15,7 @@ limitations under the License. */ // Code generated by protoc-gen-gogo. DO NOT EDIT. -// source: k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/generated.proto +// source: k8s.io/apimachinery/pkg/apis/meta/v1/generated.proto package v1 @@ -52,7 +52,7 @@ const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package func (m *APIGroup) Reset() { *m = APIGroup{} } func (*APIGroup) ProtoMessage() {} func (*APIGroup) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{0} + return fileDescriptor_a8431b6e0aeeb761, []int{0} } func (m *APIGroup) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -80,7 +80,7 @@ var xxx_messageInfo_APIGroup proto.InternalMessageInfo func (m *APIGroupList) Reset() { *m = APIGroupList{} } func (*APIGroupList) ProtoMessage() {} func (*APIGroupList) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{1} + return fileDescriptor_a8431b6e0aeeb761, []int{1} } func (m *APIGroupList) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -108,7 +108,7 @@ var xxx_messageInfo_APIGroupList proto.InternalMessageInfo func (m *APIResource) Reset() { *m = APIResource{} } func (*APIResource) ProtoMessage() {} func (*APIResource) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{2} + return fileDescriptor_a8431b6e0aeeb761, []int{2} } func (m *APIResource) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -136,7 +136,7 @@ var xxx_messageInfo_APIResource proto.InternalMessageInfo func (m *APIResourceList) Reset() { *m = APIResourceList{} } func (*APIResourceList) ProtoMessage() {} func (*APIResourceList) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{3} + return fileDescriptor_a8431b6e0aeeb761, []int{3} } func (m *APIResourceList) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -164,7 +164,7 @@ var xxx_messageInfo_APIResourceList proto.InternalMessageInfo func (m *APIVersions) Reset() { *m = APIVersions{} } func (*APIVersions) ProtoMessage() {} func (*APIVersions) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{4} + return fileDescriptor_a8431b6e0aeeb761, []int{4} } func (m *APIVersions) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -192,7 +192,7 @@ var xxx_messageInfo_APIVersions proto.InternalMessageInfo func (m *ApplyOptions) Reset() { *m = ApplyOptions{} } func (*ApplyOptions) ProtoMessage() {} func (*ApplyOptions) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{5} + return fileDescriptor_a8431b6e0aeeb761, []int{5} } func (m *ApplyOptions) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -220,7 +220,7 @@ var xxx_messageInfo_ApplyOptions proto.InternalMessageInfo func (m *Condition) Reset() { *m = Condition{} } func (*Condition) ProtoMessage() {} func (*Condition) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{6} + return fileDescriptor_a8431b6e0aeeb761, []int{6} } func (m *Condition) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -248,7 +248,7 @@ var xxx_messageInfo_Condition proto.InternalMessageInfo func (m *CreateOptions) Reset() { *m = CreateOptions{} } func (*CreateOptions) ProtoMessage() {} func (*CreateOptions) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{7} + return fileDescriptor_a8431b6e0aeeb761, []int{7} } func (m *CreateOptions) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -276,7 +276,7 @@ var xxx_messageInfo_CreateOptions proto.InternalMessageInfo func (m *DeleteOptions) Reset() { *m = DeleteOptions{} } func (*DeleteOptions) ProtoMessage() {} func (*DeleteOptions) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{8} + return fileDescriptor_a8431b6e0aeeb761, []int{8} } func (m *DeleteOptions) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -304,7 +304,7 @@ var xxx_messageInfo_DeleteOptions proto.InternalMessageInfo func (m *Duration) Reset() { *m = Duration{} } func (*Duration) ProtoMessage() {} func (*Duration) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{9} + return fileDescriptor_a8431b6e0aeeb761, []int{9} } func (m *Duration) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -329,10 +329,38 @@ func (m *Duration) XXX_DiscardUnknown() { var xxx_messageInfo_Duration proto.InternalMessageInfo +func (m *FieldSelectorRequirement) Reset() { *m = FieldSelectorRequirement{} } +func (*FieldSelectorRequirement) ProtoMessage() {} +func (*FieldSelectorRequirement) Descriptor() ([]byte, []int) { + return fileDescriptor_a8431b6e0aeeb761, []int{10} +} +func (m *FieldSelectorRequirement) XXX_Unmarshal(b []byte) error { + return m.Unmarshal(b) +} +func (m *FieldSelectorRequirement) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { + b = b[:cap(b)] + n, err := m.MarshalToSizedBuffer(b) + if err != nil { + return nil, err + } + return b[:n], nil +} +func (m *FieldSelectorRequirement) XXX_Merge(src proto.Message) { + xxx_messageInfo_FieldSelectorRequirement.Merge(m, src) +} +func (m *FieldSelectorRequirement) XXX_Size() int { + return m.Size() +} +func (m *FieldSelectorRequirement) XXX_DiscardUnknown() { + xxx_messageInfo_FieldSelectorRequirement.DiscardUnknown(m) +} + +var xxx_messageInfo_FieldSelectorRequirement proto.InternalMessageInfo + func (m *FieldsV1) Reset() { *m = FieldsV1{} } func (*FieldsV1) ProtoMessage() {} func (*FieldsV1) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{10} + return fileDescriptor_a8431b6e0aeeb761, []int{11} } func (m *FieldsV1) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -360,7 +388,7 @@ var xxx_messageInfo_FieldsV1 proto.InternalMessageInfo func (m *GetOptions) Reset() { *m = GetOptions{} } func (*GetOptions) ProtoMessage() {} func (*GetOptions) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{11} + return fileDescriptor_a8431b6e0aeeb761, []int{12} } func (m *GetOptions) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -388,7 +416,7 @@ var xxx_messageInfo_GetOptions proto.InternalMessageInfo func (m *GroupKind) Reset() { *m = GroupKind{} } func (*GroupKind) ProtoMessage() {} func (*GroupKind) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{12} + return fileDescriptor_a8431b6e0aeeb761, []int{13} } func (m *GroupKind) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -416,7 +444,7 @@ var xxx_messageInfo_GroupKind proto.InternalMessageInfo func (m *GroupResource) Reset() { *m = GroupResource{} } func (*GroupResource) ProtoMessage() {} func (*GroupResource) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{13} + return fileDescriptor_a8431b6e0aeeb761, []int{14} } func (m *GroupResource) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -444,7 +472,7 @@ var xxx_messageInfo_GroupResource proto.InternalMessageInfo func (m *GroupVersion) Reset() { *m = GroupVersion{} } func (*GroupVersion) ProtoMessage() {} func (*GroupVersion) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{14} + return fileDescriptor_a8431b6e0aeeb761, []int{15} } func (m *GroupVersion) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -472,7 +500,7 @@ var xxx_messageInfo_GroupVersion proto.InternalMessageInfo func (m *GroupVersionForDiscovery) Reset() { *m = GroupVersionForDiscovery{} } func (*GroupVersionForDiscovery) ProtoMessage() {} func (*GroupVersionForDiscovery) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{15} + return fileDescriptor_a8431b6e0aeeb761, []int{16} } func (m *GroupVersionForDiscovery) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -500,7 +528,7 @@ var xxx_messageInfo_GroupVersionForDiscovery proto.InternalMessageInfo func (m *GroupVersionKind) Reset() { *m = GroupVersionKind{} } func (*GroupVersionKind) ProtoMessage() {} func (*GroupVersionKind) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{16} + return fileDescriptor_a8431b6e0aeeb761, []int{17} } func (m *GroupVersionKind) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -528,7 +556,7 @@ var xxx_messageInfo_GroupVersionKind proto.InternalMessageInfo func (m *GroupVersionResource) Reset() { *m = GroupVersionResource{} } func (*GroupVersionResource) ProtoMessage() {} func (*GroupVersionResource) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{17} + return fileDescriptor_a8431b6e0aeeb761, []int{18} } func (m *GroupVersionResource) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -556,7 +584,7 @@ var xxx_messageInfo_GroupVersionResource proto.InternalMessageInfo func (m *LabelSelector) Reset() { *m = LabelSelector{} } func (*LabelSelector) ProtoMessage() {} func (*LabelSelector) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{18} + return fileDescriptor_a8431b6e0aeeb761, []int{19} } func (m *LabelSelector) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -584,7 +612,7 @@ var xxx_messageInfo_LabelSelector proto.InternalMessageInfo func (m *LabelSelectorRequirement) Reset() { *m = LabelSelectorRequirement{} } func (*LabelSelectorRequirement) ProtoMessage() {} func (*LabelSelectorRequirement) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{19} + return fileDescriptor_a8431b6e0aeeb761, []int{20} } func (m *LabelSelectorRequirement) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -612,7 +640,7 @@ var xxx_messageInfo_LabelSelectorRequirement proto.InternalMessageInfo func (m *List) Reset() { *m = List{} } func (*List) ProtoMessage() {} func (*List) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{20} + return fileDescriptor_a8431b6e0aeeb761, []int{21} } func (m *List) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -640,7 +668,7 @@ var xxx_messageInfo_List proto.InternalMessageInfo func (m *ListMeta) Reset() { *m = ListMeta{} } func (*ListMeta) ProtoMessage() {} func (*ListMeta) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{21} + return fileDescriptor_a8431b6e0aeeb761, []int{22} } func (m *ListMeta) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -668,7 +696,7 @@ var xxx_messageInfo_ListMeta proto.InternalMessageInfo func (m *ListOptions) Reset() { *m = ListOptions{} } func (*ListOptions) ProtoMessage() {} func (*ListOptions) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{22} + return fileDescriptor_a8431b6e0aeeb761, []int{23} } func (m *ListOptions) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -696,7 +724,7 @@ var xxx_messageInfo_ListOptions proto.InternalMessageInfo func (m *ManagedFieldsEntry) Reset() { *m = ManagedFieldsEntry{} } func (*ManagedFieldsEntry) ProtoMessage() {} func (*ManagedFieldsEntry) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{23} + return fileDescriptor_a8431b6e0aeeb761, []int{24} } func (m *ManagedFieldsEntry) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -724,7 +752,7 @@ var xxx_messageInfo_ManagedFieldsEntry proto.InternalMessageInfo func (m *MicroTime) Reset() { *m = MicroTime{} } func (*MicroTime) ProtoMessage() {} func (*MicroTime) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{24} + return fileDescriptor_a8431b6e0aeeb761, []int{25} } func (m *MicroTime) XXX_Unmarshal(b []byte) error { return xxx_messageInfo_MicroTime.Unmarshal(m, b) @@ -747,7 +775,7 @@ var xxx_messageInfo_MicroTime proto.InternalMessageInfo func (m *ObjectMeta) Reset() { *m = ObjectMeta{} } func (*ObjectMeta) ProtoMessage() {} func (*ObjectMeta) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{25} + return fileDescriptor_a8431b6e0aeeb761, []int{26} } func (m *ObjectMeta) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -775,7 +803,7 @@ var xxx_messageInfo_ObjectMeta proto.InternalMessageInfo func (m *OwnerReference) Reset() { *m = OwnerReference{} } func (*OwnerReference) ProtoMessage() {} func (*OwnerReference) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{26} + return fileDescriptor_a8431b6e0aeeb761, []int{27} } func (m *OwnerReference) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -803,7 +831,7 @@ var xxx_messageInfo_OwnerReference proto.InternalMessageInfo func (m *PartialObjectMetadata) Reset() { *m = PartialObjectMetadata{} } func (*PartialObjectMetadata) ProtoMessage() {} func (*PartialObjectMetadata) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{27} + return fileDescriptor_a8431b6e0aeeb761, []int{28} } func (m *PartialObjectMetadata) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -831,7 +859,7 @@ var xxx_messageInfo_PartialObjectMetadata proto.InternalMessageInfo func (m *PartialObjectMetadataList) Reset() { *m = PartialObjectMetadataList{} } func (*PartialObjectMetadataList) ProtoMessage() {} func (*PartialObjectMetadataList) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{28} + return fileDescriptor_a8431b6e0aeeb761, []int{29} } func (m *PartialObjectMetadataList) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -859,7 +887,7 @@ var xxx_messageInfo_PartialObjectMetadataList proto.InternalMessageInfo func (m *Patch) Reset() { *m = Patch{} } func (*Patch) ProtoMessage() {} func (*Patch) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{29} + return fileDescriptor_a8431b6e0aeeb761, []int{30} } func (m *Patch) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -887,7 +915,7 @@ var xxx_messageInfo_Patch proto.InternalMessageInfo func (m *PatchOptions) Reset() { *m = PatchOptions{} } func (*PatchOptions) ProtoMessage() {} func (*PatchOptions) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{30} + return fileDescriptor_a8431b6e0aeeb761, []int{31} } func (m *PatchOptions) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -915,7 +943,7 @@ var xxx_messageInfo_PatchOptions proto.InternalMessageInfo func (m *Preconditions) Reset() { *m = Preconditions{} } func (*Preconditions) ProtoMessage() {} func (*Preconditions) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{31} + return fileDescriptor_a8431b6e0aeeb761, []int{32} } func (m *Preconditions) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -943,7 +971,7 @@ var xxx_messageInfo_Preconditions proto.InternalMessageInfo func (m *RootPaths) Reset() { *m = RootPaths{} } func (*RootPaths) ProtoMessage() {} func (*RootPaths) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{32} + return fileDescriptor_a8431b6e0aeeb761, []int{33} } func (m *RootPaths) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -971,7 +999,7 @@ var xxx_messageInfo_RootPaths proto.InternalMessageInfo func (m *ServerAddressByClientCIDR) Reset() { *m = ServerAddressByClientCIDR{} } func (*ServerAddressByClientCIDR) ProtoMessage() {} func (*ServerAddressByClientCIDR) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{33} + return fileDescriptor_a8431b6e0aeeb761, []int{34} } func (m *ServerAddressByClientCIDR) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -999,7 +1027,7 @@ var xxx_messageInfo_ServerAddressByClientCIDR proto.InternalMessageInfo func (m *Status) Reset() { *m = Status{} } func (*Status) ProtoMessage() {} func (*Status) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{34} + return fileDescriptor_a8431b6e0aeeb761, []int{35} } func (m *Status) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -1027,7 +1055,7 @@ var xxx_messageInfo_Status proto.InternalMessageInfo func (m *StatusCause) Reset() { *m = StatusCause{} } func (*StatusCause) ProtoMessage() {} func (*StatusCause) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{35} + return fileDescriptor_a8431b6e0aeeb761, []int{36} } func (m *StatusCause) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -1055,7 +1083,7 @@ var xxx_messageInfo_StatusCause proto.InternalMessageInfo func (m *StatusDetails) Reset() { *m = StatusDetails{} } func (*StatusDetails) ProtoMessage() {} func (*StatusDetails) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{36} + return fileDescriptor_a8431b6e0aeeb761, []int{37} } func (m *StatusDetails) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -1083,7 +1111,7 @@ var xxx_messageInfo_StatusDetails proto.InternalMessageInfo func (m *TableOptions) Reset() { *m = TableOptions{} } func (*TableOptions) ProtoMessage() {} func (*TableOptions) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{37} + return fileDescriptor_a8431b6e0aeeb761, []int{38} } func (m *TableOptions) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -1111,7 +1139,7 @@ var xxx_messageInfo_TableOptions proto.InternalMessageInfo func (m *Time) Reset() { *m = Time{} } func (*Time) ProtoMessage() {} func (*Time) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{38} + return fileDescriptor_a8431b6e0aeeb761, []int{39} } func (m *Time) XXX_Unmarshal(b []byte) error { return xxx_messageInfo_Time.Unmarshal(m, b) @@ -1134,7 +1162,7 @@ var xxx_messageInfo_Time proto.InternalMessageInfo func (m *Timestamp) Reset() { *m = Timestamp{} } func (*Timestamp) ProtoMessage() {} func (*Timestamp) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{39} + return fileDescriptor_a8431b6e0aeeb761, []int{40} } func (m *Timestamp) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -1162,7 +1190,7 @@ var xxx_messageInfo_Timestamp proto.InternalMessageInfo func (m *TypeMeta) Reset() { *m = TypeMeta{} } func (*TypeMeta) ProtoMessage() {} func (*TypeMeta) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{40} + return fileDescriptor_a8431b6e0aeeb761, []int{41} } func (m *TypeMeta) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -1190,7 +1218,7 @@ var xxx_messageInfo_TypeMeta proto.InternalMessageInfo func (m *UpdateOptions) Reset() { *m = UpdateOptions{} } func (*UpdateOptions) ProtoMessage() {} func (*UpdateOptions) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{41} + return fileDescriptor_a8431b6e0aeeb761, []int{42} } func (m *UpdateOptions) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -1218,7 +1246,7 @@ var xxx_messageInfo_UpdateOptions proto.InternalMessageInfo func (m *Verbs) Reset() { *m = Verbs{} } func (*Verbs) ProtoMessage() {} func (*Verbs) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{42} + return fileDescriptor_a8431b6e0aeeb761, []int{43} } func (m *Verbs) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -1246,7 +1274,7 @@ var xxx_messageInfo_Verbs proto.InternalMessageInfo func (m *WatchEvent) Reset() { *m = WatchEvent{} } func (*WatchEvent) ProtoMessage() {} func (*WatchEvent) Descriptor() ([]byte, []int) { - return fileDescriptor_cf52fa777ced5367, []int{43} + return fileDescriptor_a8431b6e0aeeb761, []int{44} } func (m *WatchEvent) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -1282,6 +1310,7 @@ func init() { proto.RegisterType((*CreateOptions)(nil), "k8s.io.apimachinery.pkg.apis.meta.v1.CreateOptions") proto.RegisterType((*DeleteOptions)(nil), "k8s.io.apimachinery.pkg.apis.meta.v1.DeleteOptions") proto.RegisterType((*Duration)(nil), "k8s.io.apimachinery.pkg.apis.meta.v1.Duration") + proto.RegisterType((*FieldSelectorRequirement)(nil), "k8s.io.apimachinery.pkg.apis.meta.v1.FieldSelectorRequirement") proto.RegisterType((*FieldsV1)(nil), "k8s.io.apimachinery.pkg.apis.meta.v1.FieldsV1") proto.RegisterType((*GetOptions)(nil), "k8s.io.apimachinery.pkg.apis.meta.v1.GetOptions") 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0x0f, 0x7b, 0xd4, 0x73, 0xaa, 0xa4, 0x64, 0xed, 0x95, 0x49, 0x53, 0x7b, 0x89, 0xb7, 0xe0, + 0x3b, 0x1d, 0xfb, 0x21, 0xdf, 0x82, 0x33, 0x0f, 0x73, 0xf3, 0x65, 0x27, 0xbc, 0xf9, 0xae, 0x82, + 0xfc, 0xbf, 0x0c, 0xbf, 0x64, 0x64, 0x01, 0xa1, 0x5d, 0x32, 0xfa, 0xfd, 0xaf, 0xbd, 0x30, 0xfc, + 0xd8, 0x00, 0x10, 0xa3, 0x3c, 0x31, 0x46, 0x4a, 0xf1, 0xaf, 0x83, 0x3b, 0x30, 0xe3, 0x4b, 0x8f, + 0x94, 0xef, 0xc1, 0x13, 0xce, 0x8b, 0xa3, 0x40, 0x92, 0x3e, 0x89, 0x95, 0xb0, 0xfa, 0xab, 0x1f, + 0xdd, 0x5b, 0x99, 0xfa, 0xf8, 0xde, 0xca, 0xd4, 0x27, 0xf7, 0x56, 0xa6, 0xde, 0x3d, 0x5d, 0x31, + 0x3e, 0x3a, 0x5d, 0x31, 0x3e, 0x3e, 0x5d, 0x31, 0x3e, 0x39, 0x5d, 0x31, 0x3e, 0x3d, 0x5d, 0x31, + 0xde, 0xff, 0xfb, 0xca, 0xd4, 0x1b, 0x4f, 0xa4, 0xf9, 0x1f, 0xe2, 0x7f, 0x03, 0x00, 0x00, 0xff, + 0xff, 0xd3, 0xee, 0xe4, 0x1c, 0xae, 0x28, 0x00, 0x00, } func (m *APIGroup) Marshal() (dAtA []byte, err error) { @@ -2026,6 +2055,48 @@ func (m *Duration) MarshalToSizedBuffer(dAtA []byte) (int, error) { return len(dAtA) - i, nil } +func (m *FieldSelectorRequirement) Marshal() (dAtA []byte, err error) { + size := m.Size() + dAtA = make([]byte, size) + n, err := m.MarshalToSizedBuffer(dAtA[:size]) + if err != nil { + return nil, err + } + return dAtA[:n], nil +} + +func (m *FieldSelectorRequirement) MarshalTo(dAtA []byte) (int, error) { + size := m.Size() + return m.MarshalToSizedBuffer(dAtA[:size]) +} + +func (m *FieldSelectorRequirement) MarshalToSizedBuffer(dAtA []byte) (int, error) { + i := len(dAtA) + _ = i + var l int + _ = l + if len(m.Values) > 0 { + for iNdEx := len(m.Values) - 1; iNdEx >= 0; iNdEx-- { + i -= len(m.Values[iNdEx]) + copy(dAtA[i:], m.Values[iNdEx]) + i = encodeVarintGenerated(dAtA, i, uint64(len(m.Values[iNdEx]))) + i-- + dAtA[i] = 0x1a + } + } + i -= len(m.Operator) + copy(dAtA[i:], m.Operator) + i = encodeVarintGenerated(dAtA, i, uint64(len(m.Operator))) + i-- + dAtA[i] = 0x12 + i -= len(m.Key) + copy(dAtA[i:], m.Key) + i = encodeVarintGenerated(dAtA, i, uint64(len(m.Key))) + i-- + dAtA[i] = 0xa + return len(dAtA) - i, nil +} + func (m *FieldsV1) Marshal() (dAtA []byte, err error) { size := m.Size() dAtA = make([]byte, size) @@ -3715,6 +3786,25 @@ func (m *Duration) Size() (n int) { return n } +func (m *FieldSelectorRequirement) Size() (n int) { + if m == nil { + return 0 + } + var l int + _ = l + l = len(m.Key) + n += 1 + l + sovGenerated(uint64(l)) + l = len(m.Operator) + n += 1 + l + sovGenerated(uint64(l)) + if len(m.Values) > 0 { + for _, s := range m.Values { + l = len(s) + n += 1 + l + sovGenerated(uint64(l)) + } + } + return n +} + func (m *FieldsV1) Size() (n int) { if m == nil { return 0 @@ -4430,6 +4520,18 @@ func (this *Duration) String() string { }, "") return s } +func (this *FieldSelectorRequirement) String() string { + if this == nil { + return "nil" + } + s := strings.Join([]string{`&FieldSelectorRequirement{`, + `Key:` + fmt.Sprintf("%v", this.Key) + `,`, + `Operator:` + fmt.Sprintf("%v", this.Operator) + `,`, + `Values:` + fmt.Sprintf("%v", this.Values) + `,`, + `}`, + }, "") + return s +} func (this *GetOptions) String() string { if this == nil { return "nil" @@ -6444,6 +6546,152 @@ func (m *Duration) Unmarshal(dAtA []byte) error { } return nil } +func (m *FieldSelectorRequirement) Unmarshal(dAtA []byte) error { + l := len(dAtA) + iNdEx := 0 + for iNdEx < l { + preIndex := iNdEx + var wire uint64 + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowGenerated + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + wire |= uint64(b&0x7F) << shift + if b < 0x80 { + break + } + } + fieldNum := int32(wire >> 3) + wireType := int(wire & 0x7) + if wireType == 4 { + return fmt.Errorf("proto: FieldSelectorRequirement: wiretype end group for non-group") + } + if fieldNum <= 0 { + return fmt.Errorf("proto: FieldSelectorRequirement: illegal tag %d (wire type %d)", fieldNum, wire) + } + switch fieldNum { + case 1: + if wireType != 2 { + return fmt.Errorf("proto: wrong wireType = %d for field Key", wireType) + } + var stringLen uint64 + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowGenerated + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + stringLen |= uint64(b&0x7F) << shift + if b < 0x80 { + break + } + } + intStringLen := int(stringLen) + if intStringLen < 0 { + return ErrInvalidLengthGenerated + } + postIndex := iNdEx + intStringLen + if postIndex < 0 { + return ErrInvalidLengthGenerated + } + if postIndex > l { + return io.ErrUnexpectedEOF + } + m.Key = string(dAtA[iNdEx:postIndex]) + iNdEx = postIndex + case 2: + if wireType != 2 { + return fmt.Errorf("proto: wrong wireType = %d for field Operator", wireType) + } + var stringLen uint64 + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowGenerated + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + stringLen |= uint64(b&0x7F) << shift + if b < 0x80 { + break + } + } + intStringLen := int(stringLen) + if intStringLen < 0 { + return ErrInvalidLengthGenerated + } + postIndex := iNdEx + intStringLen + if postIndex < 0 { + return ErrInvalidLengthGenerated + } + if postIndex > l { + return io.ErrUnexpectedEOF + } + m.Operator = FieldSelectorOperator(dAtA[iNdEx:postIndex]) + iNdEx = postIndex + case 3: + if wireType != 2 { + return fmt.Errorf("proto: wrong wireType = %d for field Values", wireType) + } + var stringLen uint64 + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowGenerated + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + stringLen |= uint64(b&0x7F) << shift + if b < 0x80 { + break + } + } + intStringLen := int(stringLen) + if intStringLen < 0 { + return ErrInvalidLengthGenerated + } + postIndex := iNdEx + intStringLen + if postIndex < 0 { + return ErrInvalidLengthGenerated + } + if postIndex > l { + return io.ErrUnexpectedEOF + } + m.Values = append(m.Values, string(dAtA[iNdEx:postIndex])) + iNdEx = postIndex + default: + iNdEx = preIndex + skippy, err := skipGenerated(dAtA[iNdEx:]) + if err != nil { + return err + } + if (skippy < 0) || (iNdEx+skippy) < 0 { + return ErrInvalidLengthGenerated + } + if (iNdEx + skippy) > l { + return io.ErrUnexpectedEOF + } + iNdEx += skippy + } + } + + if iNdEx > l { + return io.ErrUnexpectedEOF + } + return nil +} func (m *FieldsV1) Unmarshal(dAtA []byte) error { l := len(dAtA) iNdEx := 0 diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/generated.proto b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/generated.proto index a2cd8015fb5fc..18dd0b067cc43 100644 --- a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/generated.proto +++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/generated.proto @@ -34,6 +34,7 @@ message APIGroup { optional string name = 1; // versions are the versions supported in this group. + // +listType=atomic repeated GroupVersionForDiscovery versions = 2; // preferredVersion is the version preferred by the API server, which @@ -49,6 +50,7 @@ message APIGroup { // For example: the master will return an internal IP CIDR only, if the client reaches the server using an internal IP. // Server looks at X-Forwarded-For header or X-Real-Ip header or request.RemoteAddr (in that order) to get the client IP. // +optional + // +listType=atomic repeated ServerAddressByClientCIDR serverAddressByClientCIDRs = 4; } @@ -56,6 +58,7 @@ message APIGroup { // /apis. message APIGroupList { // groups is a list of APIGroup. + // +listType=atomic repeated APIGroup groups = 1; } @@ -88,9 +91,11 @@ message APIResource { optional Verbs verbs = 4; // shortNames is a list of suggested short names of the resource. + // +listType=atomic repeated string shortNames = 5; // categories is a list of the grouped resources this resource belongs to (e.g. 'all') + // +listType=atomic repeated string categories = 7; // The hash value of the storage version, the version this resource is @@ -112,6 +117,7 @@ message APIResourceList { optional string groupVersion = 1; // resources contains the name of the resources and if they are namespaced. + // +listType=atomic repeated APIResource resources = 2; } @@ -122,6 +128,7 @@ message APIResourceList { // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object message APIVersions { // versions are the api versions that are available. + // +listType=atomic repeated string versions = 1; // a map of client CIDR to server address that is serving this group. @@ -131,6 +138,7 @@ message APIVersions { // The server returns only those CIDRs that it thinks that the client can match. // For example: the master will return an internal IP CIDR only, if the client reaches the server using an internal IP. // Server looks at X-Forwarded-For header or X-Real-Ip header or request.RemoteAddr (in that order) to get the client IP. + // +listType=atomic repeated ServerAddressByClientCIDR serverAddressByClientCIDRs = 2; } @@ -145,6 +153,7 @@ message ApplyOptions { // request. Valid values are: // - All: all dry run stages will be processed // +optional + // +listType=atomic repeated string dryRun = 1; // Force is going to "force" Apply requests. It means user will @@ -235,6 +244,7 @@ message CreateOptions { // request. Valid values are: // - All: all dry run stages will be processed // +optional + // +listType=atomic repeated string dryRun = 1; // fieldManager is a name associated with the actor or entity @@ -303,6 +313,7 @@ message DeleteOptions { // request. Valid values are: // - All: all dry run stages will be processed // +optional + // +listType=atomic repeated string dryRun = 5; } @@ -313,6 +324,25 @@ message Duration { optional int64 duration = 1; } +// FieldSelectorRequirement is a selector that contains values, a key, and an operator that +// relates the key and values. +message FieldSelectorRequirement { + // key is the field selector key that the requirement applies to. + optional string key = 1; + + // operator represents a key's relationship to a set of values. + // Valid operators are In, NotIn, Exists, DoesNotExist. + // The list of operators may grow in the future. + optional string operator = 2; + + // values is an array of string values. + // If the operator is In or NotIn, the values array must be non-empty. + // If the operator is Exists or DoesNotExist, the values array must be empty. + // +optional + // +listType=atomic + repeated string values = 3; +} + // FieldsV1 stores a set of fields in a data structure like a Trie, in JSON format. // // Each key is either a '.' representing the field itself, and will always map to an empty set, @@ -418,6 +448,7 @@ message LabelSelector { // matchExpressions is a list of label selector requirements. The requirements are ANDed. // +optional + // +listType=atomic repeated LabelSelectorRequirement matchExpressions = 2; } @@ -436,6 +467,7 @@ message LabelSelectorRequirement { // the values array must be empty. This array is replaced during a strategic // merge patch. // +optional + // +listType=atomic repeated string values = 3; } @@ -447,7 +479,7 @@ message List { optional ListMeta metadata = 1; // List of objects - repeated k8s.io.apimachinery.pkg.runtime.RawExtension items = 2; + repeated .k8s.io.apimachinery.pkg.runtime.RawExtension items = 2; } // ListMeta describes metadata that synthetic resources must have, including lists and @@ -788,6 +820,8 @@ message ObjectMeta { // +optional // +patchMergeKey=uid // +patchStrategy=merge + // +listType=map + // +listMapKey=uid repeated OwnerReference ownerReferences = 13; // Must be empty before the object is deleted from the registry. Each entry @@ -805,6 +839,7 @@ message ObjectMeta { // are not vulnerable to ordering changes in the list. // +optional // +patchStrategy=merge + // +listType=set repeated string finalizers = 14; // ManagedFields maps workflow-id and version to the set of fields @@ -816,6 +851,7 @@ message ObjectMeta { // workflow used when modifying the object. // // +optional + // +listType=atomic repeated ManagedFieldsEntry managedFields = 17; } @@ -890,6 +926,7 @@ message PatchOptions { // request. Valid values are: // - All: all dry run stages will be processed // +optional + // +listType=atomic repeated string dryRun = 1; // Force is going to "force" Apply requests. It means user will @@ -943,6 +980,7 @@ message Preconditions { // For example: "/healthz", "/apis". message RootPaths { // paths are the paths available at root. + // +listType=atomic repeated string paths = 1; } @@ -985,6 +1023,7 @@ message Status { // is not guaranteed to conform to any schema except that defined by // the reason type. // +optional + // +listType=atomic optional StatusDetails details = 5; // Suggested HTTP return code for this status, 0 if not set. @@ -1049,6 +1088,7 @@ message StatusDetails { // The Causes array includes more details associated with the StatusReason // failure. Not all StatusReasons may provide detailed causes. // +optional + // +listType=atomic repeated StatusCause causes = 4; // If specified, the time in seconds before the operation should be retried. Some errors may indicate @@ -1135,6 +1175,7 @@ message UpdateOptions { // request. Valid values are: // - All: all dry run stages will be processed // +optional + // +listType=atomic repeated string dryRun = 1; // fieldManager is a name associated with the actor or entity @@ -1187,6 +1228,6 @@ message WatchEvent { // * If Type is Deleted: the state of the object immediately before deletion. // * If Type is Error: *Status is recommended; other types may make sense // depending on context. - optional k8s.io.apimachinery.pkg.runtime.RawExtension object = 2; + optional .k8s.io.apimachinery.pkg.runtime.RawExtension object = 2; } diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/helpers.go b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/helpers.go index 592dcb8a74603..c748071ed7fbc 100644 --- a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/helpers.go +++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/helpers.go @@ -24,8 +24,10 @@ import ( "k8s.io/apimachinery/pkg/fields" "k8s.io/apimachinery/pkg/labels" + cbor "k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct" "k8s.io/apimachinery/pkg/selection" "k8s.io/apimachinery/pkg/types" + utiljson "k8s.io/apimachinery/pkg/util/json" ) // LabelSelectorAsSelector converts the LabelSelector api type into a struct that implements @@ -280,13 +282,20 @@ func (f FieldsV1) MarshalJSON() ([]byte, error) { if f.Raw == nil { return []byte("null"), nil } + if f.getContentType() == fieldsV1InvalidOrValidCBORObject { + var u map[string]interface{} + if err := cbor.Unmarshal(f.Raw, &u); err != nil { + return nil, fmt.Errorf("metav1.FieldsV1 cbor invalid: %w", err) + } + return utiljson.Marshal(u) + } return f.Raw, nil } // UnmarshalJSON implements json.Unmarshaler func (f *FieldsV1) UnmarshalJSON(b []byte) error { if f == nil { - return errors.New("metav1.Fields: UnmarshalJSON on nil pointer") + return errors.New("metav1.FieldsV1: UnmarshalJSON on nil pointer") } if !bytes.Equal(b, []byte("null")) { f.Raw = append(f.Raw[0:0], b...) @@ -296,3 +305,75 @@ func (f *FieldsV1) UnmarshalJSON(b []byte) error { var _ json.Marshaler = FieldsV1{} var _ json.Unmarshaler = &FieldsV1{} + +func (f FieldsV1) MarshalCBOR() ([]byte, error) { + if f.Raw == nil { + return cbor.Marshal(nil) + } + if f.getContentType() == fieldsV1InvalidOrValidJSONObject { + var u map[string]interface{} + if err := utiljson.Unmarshal(f.Raw, &u); err != nil { + return nil, fmt.Errorf("metav1.FieldsV1 json invalid: %w", err) + } + return cbor.Marshal(u) + } + return f.Raw, nil +} + +var cborNull = []byte{0xf6} + +func (f *FieldsV1) UnmarshalCBOR(b []byte) error { + if f == nil { + return errors.New("metav1.FieldsV1: UnmarshalCBOR on nil pointer") + } + if !bytes.Equal(b, cborNull) { + f.Raw = append(f.Raw[0:0], b...) + } + return nil +} + +const ( + // fieldsV1InvalidOrEmpty indicates that a FieldsV1 either contains no raw bytes or its raw + // bytes don't represent an allowable value in any supported encoding. + fieldsV1InvalidOrEmpty = iota + + // fieldsV1InvalidOrValidJSONObject indicates that a FieldV1 either contains raw bytes that + // are a valid JSON encoding of an allowable value or don't represent an allowable value in + // any supported encoding. + fieldsV1InvalidOrValidJSONObject + + // fieldsV1InvalidOrValidCBORObject indicates that a FieldV1 either contains raw bytes that + // are a valid CBOR encoding of an allowable value or don't represent an allowable value in + // any supported encoding. + fieldsV1InvalidOrValidCBORObject +) + +// getContentType returns one of fieldsV1InvalidOrEmpty, fieldsV1InvalidOrValidJSONObject, +// fieldsV1InvalidOrValidCBORObject based on the value of Raw. +// +// Raw can be encoded in JSON or CBOR and is only valid if it is empty, null, or an object (map) +// value. It is invalid if it contains a JSON string, number, boolean, or array. If Raw is nonempty +// and represents an allowable value, then the initial byte unambiguously distinguishes a +// JSON-encoded value from a CBOR-encoded value. +// +// A valid JSON-encoded value can begin with any of the four JSON whitespace characters, the first +// character 'n' of null, or '{' (0x09, 0x0a, 0x0d, 0x20, 0x6e, or 0x7b, respectively). A valid +// CBOR-encoded value can begin with the null simple value, an initial byte with major type "map", +// or, if a tag-enclosed map, an initial byte with major type "tag" (0xf6, 0xa0...0xbf, or +// 0xc6...0xdb). The two sets of valid initial bytes don't intersect. +func (f FieldsV1) getContentType() int { + if len(f.Raw) > 0 { + p := f.Raw[0] + switch p { + case 'n', '{', '\t', '\r', '\n', ' ': + return fieldsV1InvalidOrValidJSONObject + case 0xf6: // null + return fieldsV1InvalidOrValidCBORObject + default: + if p >= 0xa0 && p <= 0xbf /* map */ || p >= 0xc6 && p <= 0xdb /* tag */ { + return fieldsV1InvalidOrValidCBORObject + } + } + } + return fieldsV1InvalidOrEmpty +} diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/micro_time.go b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/micro_time.go index 8eb37f4367030..9f302b3f364f9 100644 --- a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/micro_time.go +++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/micro_time.go @@ -19,6 +19,8 @@ package v1 import ( "encoding/json" "time" + + cbor "k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct" ) const RFC3339Micro = "2006-01-02T15:04:05.000000Z07:00" @@ -129,6 +131,25 @@ func (t *MicroTime) UnmarshalJSON(b []byte) error { return nil } +func (t *MicroTime) UnmarshalCBOR(b []byte) error { + var s *string + if err := cbor.Unmarshal(b, &s); err != nil { + return err + } + if s == nil { + t.Time = time.Time{} + return nil + } + + parsed, err := time.Parse(RFC3339Micro, *s) + if err != nil { + return err + } + + t.Time = parsed.Local() + return nil +} + // UnmarshalQueryParameter converts from a URL query parameter value to an object func (t *MicroTime) UnmarshalQueryParameter(str string) error { if len(str) == 0 { @@ -160,6 +181,13 @@ func (t MicroTime) MarshalJSON() ([]byte, error) { return json.Marshal(t.UTC().Format(RFC3339Micro)) } +func (t MicroTime) MarshalCBOR() ([]byte, error) { + if t.IsZero() { + return cbor.Marshal(nil) + } + return cbor.Marshal(t.UTC().Format(RFC3339Micro)) +} + // OpenAPISchemaType is used by the kube-openapi generator when constructing // the OpenAPI spec of this type. // diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/time.go b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/time.go index 421770d432064..0333cfdb33789 100644 --- a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/time.go +++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/time.go @@ -19,6 +19,8 @@ package v1 import ( "encoding/json" "time" + + cbor "k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct" ) // Time is a wrapper around time.Time which supports correct @@ -116,6 +118,25 @@ func (t *Time) UnmarshalJSON(b []byte) error { return nil } +func (t *Time) UnmarshalCBOR(b []byte) error { + var s *string + if err := cbor.Unmarshal(b, &s); err != nil { + return err + } + if s == nil { + t.Time = time.Time{} + return nil + } + + parsed, err := time.Parse(time.RFC3339, *s) + if err != nil { + return err + } + + t.Time = parsed.Local() + return nil +} + // UnmarshalQueryParameter converts from a URL query parameter value to an object func (t *Time) UnmarshalQueryParameter(str string) error { if len(str) == 0 { @@ -151,6 +172,14 @@ func (t Time) MarshalJSON() ([]byte, error) { return buf, nil } +func (t Time) MarshalCBOR() ([]byte, error) { + if t.IsZero() { + return cbor.Marshal(nil) + } + + return cbor.Marshal(t.UTC().Format(time.RFC3339)) +} + // ToUnstructured implements the value.UnstructuredConverter interface. func (t Time) ToUnstructured() interface{} { if t.IsZero() { diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/types.go b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/types.go index 8a8ff701899af..473adb9ef537c 100644 --- a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/types.go +++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/types.go @@ -236,6 +236,8 @@ type ObjectMeta struct { // +optional // +patchMergeKey=uid // +patchStrategy=merge + // +listType=map + // +listMapKey=uid OwnerReferences []OwnerReference `json:"ownerReferences,omitempty" patchStrategy:"merge" patchMergeKey:"uid" protobuf:"bytes,13,rep,name=ownerReferences"` // Must be empty before the object is deleted from the registry. Each entry @@ -253,6 +255,7 @@ type ObjectMeta struct { // are not vulnerable to ordering changes in the list. // +optional // +patchStrategy=merge + // +listType=set Finalizers []string `json:"finalizers,omitempty" patchStrategy:"merge" protobuf:"bytes,14,rep,name=finalizers"` // Tombstone: ClusterName was a legacy field that was always cleared by @@ -268,6 +271,7 @@ type ObjectMeta struct { // workflow used when modifying the object. // // +optional + // +listType=atomic ManagedFields []ManagedFieldsEntry `json:"managedFields,omitempty" protobuf:"bytes,17,rep,name=managedFields"` } @@ -428,6 +432,15 @@ type ListOptions struct { SendInitialEvents *bool `json:"sendInitialEvents,omitempty" protobuf:"varint,11,opt,name=sendInitialEvents"` } +const ( + // InitialEventsAnnotationKey the name of the key + // under which an annotation marking the end of + // a watchlist stream is stored. + // + // The annotation is added to a "Bookmark" event. + InitialEventsAnnotationKey = "k8s.io/initial-events-end" +) + // resourceVersionMatch specifies how the resourceVersion parameter is applied. resourceVersionMatch // may only be set if resourceVersion is also set. // @@ -531,6 +544,7 @@ type DeleteOptions struct { // request. Valid values are: // - All: all dry run stages will be processed // +optional + // +listType=atomic DryRun []string `json:"dryRun,omitempty" protobuf:"bytes,5,rep,name=dryRun"` } @@ -556,6 +570,7 @@ type CreateOptions struct { // request. Valid values are: // - All: all dry run stages will be processed // +optional + // +listType=atomic DryRun []string `json:"dryRun,omitempty" protobuf:"bytes,1,rep,name=dryRun"` // +k8s:deprecated=includeUninitialized,protobuf=2 @@ -600,6 +615,7 @@ type PatchOptions struct { // request. Valid values are: // - All: all dry run stages will be processed // +optional + // +listType=atomic DryRun []string `json:"dryRun,omitempty" protobuf:"bytes,1,rep,name=dryRun"` // Force is going to "force" Apply requests. It means user will @@ -651,6 +667,7 @@ type ApplyOptions struct { // request. Valid values are: // - All: all dry run stages will be processed // +optional + // +listType=atomic DryRun []string `json:"dryRun,omitempty" protobuf:"bytes,1,rep,name=dryRun"` // Force is going to "force" Apply requests. It means user will @@ -683,6 +700,7 @@ type UpdateOptions struct { // request. Valid values are: // - All: all dry run stages will be processed // +optional + // +listType=atomic DryRun []string `json:"dryRun,omitempty" protobuf:"bytes,1,rep,name=dryRun"` // fieldManager is a name associated with the actor or entity @@ -751,6 +769,7 @@ type Status struct { // is not guaranteed to conform to any schema except that defined by // the reason type. // +optional + // +listType=atomic Details *StatusDetails `json:"details,omitempty" protobuf:"bytes,5,opt,name=details"` // Suggested HTTP return code for this status, 0 if not set. // +optional @@ -784,6 +803,7 @@ type StatusDetails struct { // The Causes array includes more details associated with the StatusReason // failure. Not all StatusReasons may provide detailed causes. // +optional + // +listType=atomic Causes []StatusCause `json:"causes,omitempty" protobuf:"bytes,4,rep,name=causes"` // If specified, the time in seconds before the operation should be retried. Some errors may indicate // the client must take an alternate action - for those errors this field may indicate how long to wait @@ -1047,6 +1067,7 @@ type List struct { type APIVersions struct { TypeMeta `json:",inline"` // versions are the api versions that are available. + // +listType=atomic Versions []string `json:"versions" protobuf:"bytes,1,rep,name=versions"` // a map of client CIDR to server address that is serving this group. // This is to help clients reach servers in the most network-efficient way possible. @@ -1055,6 +1076,7 @@ type APIVersions struct { // The server returns only those CIDRs that it thinks that the client can match. // For example: the master will return an internal IP CIDR only, if the client reaches the server using an internal IP. // Server looks at X-Forwarded-For header or X-Real-Ip header or request.RemoteAddr (in that order) to get the client IP. + // +listType=atomic ServerAddressByClientCIDRs []ServerAddressByClientCIDR `json:"serverAddressByClientCIDRs" protobuf:"bytes,2,rep,name=serverAddressByClientCIDRs"` } @@ -1065,6 +1087,7 @@ type APIVersions struct { type APIGroupList struct { TypeMeta `json:",inline"` // groups is a list of APIGroup. + // +listType=atomic Groups []APIGroup `json:"groups" protobuf:"bytes,1,rep,name=groups"` } @@ -1077,6 +1100,7 @@ type APIGroup struct { // name is the name of the group. Name string `json:"name" protobuf:"bytes,1,opt,name=name"` // versions are the versions supported in this group. + // +listType=atomic Versions []GroupVersionForDiscovery `json:"versions" protobuf:"bytes,2,rep,name=versions"` // preferredVersion is the version preferred by the API server, which // probably is the storage version. @@ -1090,6 +1114,7 @@ type APIGroup struct { // For example: the master will return an internal IP CIDR only, if the client reaches the server using an internal IP. // Server looks at X-Forwarded-For header or X-Real-Ip header or request.RemoteAddr (in that order) to get the client IP. // +optional + // +listType=atomic ServerAddressByClientCIDRs []ServerAddressByClientCIDR `json:"serverAddressByClientCIDRs,omitempty" protobuf:"bytes,4,rep,name=serverAddressByClientCIDRs"` } @@ -1134,8 +1159,10 @@ type APIResource struct { // update, patch, delete, deletecollection, and proxy) Verbs Verbs `json:"verbs" protobuf:"bytes,4,opt,name=verbs"` // shortNames is a list of suggested short names of the resource. + // +listType=atomic ShortNames []string `json:"shortNames,omitempty" protobuf:"bytes,5,rep,name=shortNames"` // categories is a list of the grouped resources this resource belongs to (e.g. 'all') + // +listType=atomic Categories []string `json:"categories,omitempty" protobuf:"bytes,7,rep,name=categories"` // The hash value of the storage version, the version this resource is // converted to when written to the data store. Value must be treated @@ -1168,6 +1195,7 @@ type APIResourceList struct { // groupVersion is the group and version this APIResourceList is for. GroupVersion string `json:"groupVersion" protobuf:"bytes,1,opt,name=groupVersion"` // resources contains the name of the resources and if they are namespaced. + // +listType=atomic APIResources []APIResource `json:"resources" protobuf:"bytes,2,rep,name=resources"` } @@ -1175,6 +1203,7 @@ type APIResourceList struct { // For example: "/healthz", "/apis". type RootPaths struct { // paths are the paths available at root. + // +listType=atomic Paths []string `json:"paths" protobuf:"bytes,1,rep,name=paths"` } @@ -1218,6 +1247,7 @@ type LabelSelector struct { MatchLabels map[string]string `json:"matchLabels,omitempty" protobuf:"bytes,1,rep,name=matchLabels"` // matchExpressions is a list of label selector requirements. The requirements are ANDed. // +optional + // +listType=atomic MatchExpressions []LabelSelectorRequirement `json:"matchExpressions,omitempty" protobuf:"bytes,2,rep,name=matchExpressions"` } @@ -1234,6 +1264,7 @@ type LabelSelectorRequirement struct { // the values array must be empty. This array is replaced during a strategic // merge patch. // +optional + // +listType=atomic Values []string `json:"values,omitempty" protobuf:"bytes,3,rep,name=values"` } @@ -1247,6 +1278,33 @@ const ( LabelSelectorOpDoesNotExist LabelSelectorOperator = "DoesNotExist" ) +// FieldSelectorRequirement is a selector that contains values, a key, and an operator that +// relates the key and values. +type FieldSelectorRequirement struct { + // key is the field selector key that the requirement applies to. + Key string `json:"key" protobuf:"bytes,1,opt,name=key"` + // operator represents a key's relationship to a set of values. + // Valid operators are In, NotIn, Exists, DoesNotExist. + // The list of operators may grow in the future. + Operator FieldSelectorOperator `json:"operator" protobuf:"bytes,2,opt,name=operator,casttype=FieldSelectorOperator"` + // values is an array of string values. + // If the operator is In or NotIn, the values array must be non-empty. + // If the operator is Exists or DoesNotExist, the values array must be empty. + // +optional + // +listType=atomic + Values []string `json:"values,omitempty" protobuf:"bytes,3,rep,name=values"` +} + +// A field selector operator is the set of operators that can be used in a selector requirement. +type FieldSelectorOperator string + +const ( + FieldSelectorOpIn FieldSelectorOperator = "In" + FieldSelectorOpNotIn FieldSelectorOperator = "NotIn" + FieldSelectorOpExists FieldSelectorOperator = "Exists" + FieldSelectorOpDoesNotExist FieldSelectorOperator = "DoesNotExist" +) + // ManagedFieldsEntry is a workflow-id, a FieldSet and the group version of the resource // that the fieldset applies to. type ManagedFieldsEntry struct { @@ -1335,8 +1393,10 @@ type Table struct { // columnDefinitions describes each column in the returned items array. The number of cells per row // will always match the number of column definitions. + // +listType=atomic ColumnDefinitions []TableColumnDefinition `json:"columnDefinitions"` // rows is the list of items in the table. + // +listType=atomic Rows []TableRow `json:"rows"` } @@ -1369,12 +1429,14 @@ type TableRow struct { // cells will be as wide as the column definitions array and may contain strings, numbers (float64 or // int64), booleans, simple maps, lists, or null. See the type field of the column definition for a // more detailed description. + // +listType=atomic Cells []interface{} `json:"cells"` // conditions describe additional status of a row that are relevant for a human user. These conditions // apply to the row, not to the object, and will be specific to table output. The only defined // condition type is 'Completed', for a row that indicates a resource that has run to completion and // can be given less visual priority. // +optional + // +listType=atomic Conditions []TableRowCondition `json:"conditions,omitempty"` // This field contains the requested additional information about each object based on the includeObject // policy when requesting the Table. If "None", this field is empty, if "Object" this will be the diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/types_swagger_doc_generated.go b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/types_swagger_doc_generated.go index b736e837126c6..1fa37215cd074 100644 --- a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/types_swagger_doc_generated.go +++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/types_swagger_doc_generated.go @@ -135,6 +135,17 @@ func (DeleteOptions) SwaggerDoc() map[string]string { return map_DeleteOptions } +var map_FieldSelectorRequirement = map[string]string{ + "": "FieldSelectorRequirement is a selector that contains values, a key, and an operator that relates the key and values.", + "key": "key is the field selector key that the requirement applies to.", + "operator": "operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists, DoesNotExist. The list of operators may grow in the future.", + "values": "values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty.", +} + +func (FieldSelectorRequirement) SwaggerDoc() map[string]string { + return map_FieldSelectorRequirement +} + var map_FieldsV1 = map[string]string{ "": "FieldsV1 stores a set of fields in a data structure like a Trie, in JSON format.\n\nEach key is either a '.' representing the field itself, and will always map to an empty set, or a string representing a sub-field or item. The string will follow one of these four formats: 'f:', where is the name of a field in a struct, or key in a map 'v:', where is the exact json formatted value of a list item 'i:', where is position of a item in a list 'k:', where is a map of a list item's key fields to their unique values If a key maps to an empty Fields value, the field that key represents is part of the set.\n\nThe exact format is defined in sigs.k8s.io/structured-merge-diff", } diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/validation/validation.go b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/validation/validation.go index a0f709ad862f7..3eba5ba541727 100644 --- a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/validation/validation.go +++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/validation/validation.go @@ -32,6 +32,10 @@ import ( type LabelSelectorValidationOptions struct { // Allow invalid label value in selector AllowInvalidLabelValueInSelector bool + + // Allows an operator that is not interpretable to pass validation. This is useful for cases where a broader check + // can be performed, as in a *SubjectAccessReview + AllowUnknownOperatorInRequirement bool } // LabelSelectorHasInvalidLabelValue returns true if the given selector contains an invalid label value in a match expression. @@ -79,7 +83,9 @@ func ValidateLabelSelectorRequirement(sr metav1.LabelSelectorRequirement, opts L allErrs = append(allErrs, field.Forbidden(fldPath.Child("values"), "may not be specified when `operator` is 'Exists' or 'DoesNotExist'")) } default: - allErrs = append(allErrs, field.Invalid(fldPath.Child("operator"), sr.Operator, "not a valid selector operator")) + if !opts.AllowUnknownOperatorInRequirement { + allErrs = append(allErrs, field.Invalid(fldPath.Child("operator"), sr.Operator, "not a valid selector operator")) + } } allErrs = append(allErrs, ValidateLabelName(sr.Key, fldPath.Child("key"))...) if !opts.AllowInvalidLabelValueInSelector { @@ -113,6 +119,39 @@ func ValidateLabels(labels map[string]string, fldPath *field.Path) field.ErrorLi return allErrs } +// FieldSelectorValidationOptions is a struct that can be passed to ValidateFieldSelectorRequirement to record the validate options +type FieldSelectorValidationOptions struct { + // Allows an operator that is not interpretable to pass validation. This is useful for cases where a broader check + // can be performed, as in a *SubjectAccessReview + AllowUnknownOperatorInRequirement bool +} + +// ValidateLabelSelectorRequirement validates the requirement according to the opts and returns any validation errors. +func ValidateFieldSelectorRequirement(requirement metav1.FieldSelectorRequirement, opts FieldSelectorValidationOptions, fldPath *field.Path) field.ErrorList { + allErrs := field.ErrorList{} + + if len(requirement.Key) == 0 { + allErrs = append(allErrs, field.Required(fldPath.Child("key"), "must be specified")) + } + + switch requirement.Operator { + case metav1.FieldSelectorOpIn, metav1.FieldSelectorOpNotIn: + if len(requirement.Values) == 0 { + allErrs = append(allErrs, field.Required(fldPath.Child("values"), "must be specified when `operator` is 'In' or 'NotIn'")) + } + case metav1.FieldSelectorOpExists, metav1.FieldSelectorOpDoesNotExist: + if len(requirement.Values) > 0 { + allErrs = append(allErrs, field.Forbidden(fldPath.Child("values"), "may not be specified when `operator` is 'Exists' or 'DoesNotExist'")) + } + default: + if !opts.AllowUnknownOperatorInRequirement { + allErrs = append(allErrs, field.Invalid(fldPath.Child("operator"), requirement.Operator, "not a valid selector operator")) + } + } + + return allErrs +} + func ValidateDeleteOptions(options *metav1.DeleteOptions) field.ErrorList { allErrs := field.ErrorList{} //lint:file-ignore SA1019 Keep validation for deprecated OrphanDependents option until it's being removed diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/zz_generated.deepcopy.go b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/zz_generated.deepcopy.go index 7d29c504ab95a..90cc54a7e7655 100644 --- a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/zz_generated.deepcopy.go +++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/zz_generated.deepcopy.go @@ -327,6 +327,27 @@ func (in *Duration) DeepCopy() *Duration { return out } +// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil. +func (in *FieldSelectorRequirement) DeepCopyInto(out *FieldSelectorRequirement) { + *out = *in + if in.Values != nil { + in, out := &in.Values, &out.Values + *out = make([]string, len(*in)) + copy(*out, *in) + } + return +} + +// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new FieldSelectorRequirement. +func (in *FieldSelectorRequirement) DeepCopy() *FieldSelectorRequirement { + if in == nil { + return nil + } + out := new(FieldSelectorRequirement) + in.DeepCopyInto(out) + return out +} + // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil. func (in *FieldsV1) DeepCopyInto(out *FieldsV1) { *out = *in diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1beta1/generated.pb.go b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1beta1/generated.pb.go index a2abc67c151bc..819d936fe5bc2 100644 --- a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1beta1/generated.pb.go +++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1beta1/generated.pb.go @@ -15,7 +15,7 @@ limitations under the License. */ // Code generated by protoc-gen-gogo. DO NOT EDIT. -// source: k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/apis/meta/v1beta1/generated.proto +// source: k8s.io/apimachinery/pkg/apis/meta/v1beta1/generated.proto package v1beta1 @@ -47,7 +47,7 @@ const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package func (m *PartialObjectMetadataList) Reset() { *m = PartialObjectMetadataList{} } func (*PartialObjectMetadataList) ProtoMessage() {} func (*PartialObjectMetadataList) Descriptor() ([]byte, []int) { - return fileDescriptor_90ec10f86b91f9a8, []int{0} + return fileDescriptor_39237a8d8061b52f, []int{0} } func (m *PartialObjectMetadataList) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -77,31 +77,30 @@ func init() { } func init() { - proto.RegisterFile("k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/apis/meta/v1beta1/generated.proto", fileDescriptor_90ec10f86b91f9a8) + proto.RegisterFile("k8s.io/apimachinery/pkg/apis/meta/v1beta1/generated.proto", fileDescriptor_39237a8d8061b52f) } -var fileDescriptor_90ec10f86b91f9a8 = []byte{ - // 317 bytes of a gzipped FileDescriptorProto +var fileDescriptor_39237a8d8061b52f = []byte{ + // 303 bytes of a gzipped FileDescriptorProto 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0x92, 0x41, 0x4b, 0xf3, 0x30, 0x1c, 0xc6, 0x9b, 0xf7, 0x65, 0x30, 0x3a, 0x04, 0xd9, 0x69, 0xee, 0x90, 0x0d, 0x4f, 0xdb, 0xc1, - 0x84, 0x0d, 0x11, 0xc1, 0xdb, 0x6e, 0x82, 0x32, 0xd9, 0x51, 0x3c, 0x98, 0x76, 0x7f, 0xbb, 0x58, - 0xd3, 0x94, 0xe4, 0xdf, 0x81, 0x37, 0x3f, 0x82, 0x1f, 0x6b, 0xc7, 0x1d, 0x07, 0xc2, 0x70, 0xf5, - 0x8b, 0x48, 0xda, 0x2a, 0x32, 0x14, 0x7a, 0xeb, 0xf3, 0x94, 0xdf, 0x2f, 0x4f, 0x20, 0xfe, 0x2c, - 0x3e, 0xb7, 0x4c, 0x6a, 0x1e, 0x67, 0x01, 0x98, 0x04, 0x10, 0x2c, 0x5f, 0x42, 0x32, 0xd7, 0x86, - 0x57, 0x3f, 0x44, 0x2a, 0x95, 0x08, 0x17, 0x32, 0x01, 0xf3, 0xcc, 0xd3, 0x38, 0x72, 0x85, 0xe5, - 0x0a, 0x50, 0xf0, 0xe5, 0x28, 0x00, 0x14, 0x23, 0x1e, 0x41, 0x02, 0x46, 0x20, 0xcc, 0x59, 0x6a, - 0x34, 0xea, 0xf6, 0xb0, 0x44, 0xd9, 0x4f, 0x94, 0xa5, 0x71, 0xe4, 0x0a, 0xcb, 0x1c, 0xca, 0x2a, - 0xb4, 0x7b, 0x12, 0x49, 0x5c, 0x64, 0x01, 0x0b, 0xb5, 0xe2, 0x91, 0x8e, 0x34, 0x2f, 0x0c, 0x41, - 0xf6, 0x50, 0xa4, 0x22, 0x14, 0x5f, 0xa5, 0xb9, 0x7b, 0x5a, 0x67, 0xd4, 0xfe, 0x9e, 0xee, 0xd9, - 0x5f, 0x94, 0xc9, 0x12, 0x94, 0x0a, 0xb8, 0x0d, 0x17, 0xa0, 0xc4, 0x3e, 0x77, 0xfc, 0x46, 0xfc, - 0xa3, 0x1b, 0x61, 0x50, 0x8a, 0xa7, 0x69, 0xf0, 0x08, 0x21, 0x5e, 0x03, 0x8a, 0xb9, 0x40, 0x71, - 0x25, 0x2d, 0xb6, 0xef, 0xfc, 0xa6, 0xaa, 0x72, 0xe7, 0x5f, 0x9f, 0x0c, 0x5a, 0x63, 0xc6, 0xea, - 0x5c, 0x9c, 0x39, 0xda, 0x99, 0x26, 0x87, 0xab, 0x6d, 0xcf, 0xcb, 0xb7, 0xbd, 0xe6, 0x57, 0x33, - 0xfb, 0x36, 0xb6, 0xef, 0xfd, 0x86, 0x44, 0x50, 0xb6, 0x43, 0xfa, 0xff, 0x07, 0xad, 0xf1, 0x45, - 0x3d, 0xf5, 0xaf, 0x6b, 0x27, 0x07, 0xd5, 0x39, 0x8d, 0x4b, 0x67, 0x9c, 0x95, 0xe2, 0xc9, 0x74, - 0xb5, 0xa3, 0xde, 0x7a, 0x47, 0xbd, 0xcd, 0x8e, 0x7a, 0x2f, 0x39, 0x25, 0xab, 0x9c, 0x92, 0x75, - 0x4e, 0xc9, 0x26, 0xa7, 0xe4, 0x3d, 0xa7, 0xe4, 0xf5, 0x83, 0x7a, 0xb7, 0xc3, 0xda, 0xcf, 0xe0, - 0x33, 0x00, 0x00, 0xff, 0xff, 0x30, 0x97, 0x8b, 0x11, 0x4b, 0x02, 0x00, 0x00, + 0x84, 0x0d, 0x11, 0xc5, 0xdb, 0x6e, 0x82, 0x32, 0xd9, 0x51, 0x3c, 0x98, 0x76, 0x31, 0x8b, 0x35, + 0x4d, 0x69, 0xfe, 0x15, 0xbc, 0xf9, 0x11, 0xfc, 0x58, 0x3d, 0xee, 0x38, 0x10, 0x86, 0x8d, 0x5f, + 0x44, 0xd2, 0x56, 0x91, 0xa1, 0xd0, 0x5b, 0x9e, 0x07, 0x7e, 0xbf, 0x3c, 0x81, 0xf8, 0x67, 0xd1, + 0xa9, 0x21, 0x52, 0x53, 0x96, 0x48, 0xc5, 0xc2, 0x95, 0x8c, 0x79, 0xfa, 0x4c, 0x93, 0x48, 0xb8, + 0xc2, 0x50, 0xc5, 0x81, 0xd1, 0xa7, 0x49, 0xc0, 0x81, 0x4d, 0xa8, 0xe0, 0x31, 0x4f, 0x19, 0xf0, + 0x25, 0x49, 0x52, 0x0d, 0xba, 0x3b, 0xae, 0x50, 0xf2, 0x13, 0x25, 0x49, 0x24, 0x5c, 0x61, 0x88, + 0x43, 0x49, 0x8d, 0xf6, 0x8f, 0x84, 0x84, 0x55, 0x16, 0x90, 0x50, 0x2b, 0x2a, 0xb4, 0xd0, 0xb4, + 0x34, 0x04, 0xd9, 0x7d, 0x99, 0xca, 0x50, 0x9e, 0x2a, 0x73, 0xff, 0xb8, 0xc9, 0xa8, 0xdd, 0x3d, + 0xfd, 0x93, 0xbf, 0xa8, 0x34, 0x8b, 0x41, 0x2a, 0x4e, 0x4d, 0xb8, 0xe2, 0x8a, 0xed, 0x72, 0x87, + 0x6f, 0xc8, 0x3f, 0xb8, 0x66, 0x29, 0x48, 0xf6, 0x38, 0x0f, 0x1e, 0x78, 0x08, 0x57, 0x1c, 0xd8, + 0x92, 0x01, 0xbb, 0x94, 0x06, 0xba, 0xb7, 0x7e, 0x5b, 0xd5, 0xb9, 0xf7, 0x6f, 0x88, 0x46, 0x9d, + 0x29, 0x21, 0x4d, 0x1e, 0x4e, 0x1c, 0xed, 0x4c, 0xb3, 0xfd, 0x7c, 0x3b, 0xf0, 0xec, 0x76, 0xd0, + 0xfe, 0x6a, 0x16, 0xdf, 0xc6, 0xee, 0x9d, 0xdf, 0x92, 0xc0, 0x95, 0xe9, 0xa1, 0xe1, 0xff, 0x51, + 0x67, 0x7a, 0xde, 0x4c, 0xfd, 0xeb, 0xda, 0xd9, 0x5e, 0x7d, 0x4f, 0xeb, 0xc2, 0x19, 0x17, 0x95, + 0x78, 0x36, 0xcf, 0x0b, 0xec, 0xad, 0x0b, 0xec, 0x6d, 0x0a, 0xec, 0xbd, 0x58, 0x8c, 0x72, 0x8b, + 0xd1, 0xda, 0x62, 0xb4, 0xb1, 0x18, 0xbd, 0x5b, 0x8c, 0x5e, 0x3f, 0xb0, 0x77, 0x33, 0x6e, 0xfc, + 0x0d, 0x3e, 0x03, 0x00, 0x00, 0xff, 0xff, 0xfe, 0x0f, 0xd7, 0x36, 0x32, 0x02, 0x00, 0x00, } func (m *PartialObjectMetadataList) Marshal() (dAtA []byte, err error) { diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1beta1/generated.proto b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1beta1/generated.proto index d14d42591bbad..fcec553542586 100644 --- a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1beta1/generated.proto +++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1beta1/generated.proto @@ -33,9 +33,9 @@ message PartialObjectMetadataList { // Standard list metadata. // More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds // +optional - optional k8s.io.apimachinery.pkg.apis.meta.v1.ListMeta metadata = 2; + optional .k8s.io.apimachinery.pkg.apis.meta.v1.ListMeta metadata = 2; // items contains each of the included items. - repeated k8s.io.apimachinery.pkg.apis.meta.v1.PartialObjectMetadata items = 1; + repeated .k8s.io.apimachinery.pkg.apis.meta.v1.PartialObjectMetadata items = 1; } diff --git a/vendor/k8s.io/apimachinery/pkg/labels/selector.go b/vendor/k8s.io/apimachinery/pkg/labels/selector.go index 5e601424051e0..9e22a00564232 100644 --- a/vendor/k8s.io/apimachinery/pkg/labels/selector.go +++ b/vendor/k8s.io/apimachinery/pkg/labels/selector.go @@ -45,6 +45,19 @@ var ( // Requirements is AND of all requirements. type Requirements []Requirement +func (r Requirements) String() string { + var sb strings.Builder + + for i, requirement := range r { + if i > 0 { + sb.WriteString(", ") + } + sb.WriteString(requirement.String()) + } + + return sb.String() +} + // Selector represents a label selector. type Selector interface { // Matches returns true if this selector matches the given set of labels. @@ -285,6 +298,13 @@ func (r *Requirement) Values() sets.String { return ret } +// ValuesUnsorted returns a copy of requirement values as passed to NewRequirement without sorting. +func (r *Requirement) ValuesUnsorted() []string { + ret := make([]string, 0, len(r.strValues)) + ret = append(ret, r.strValues...) + return ret +} + // Equal checks the equality of requirement. func (r Requirement) Equal(x Requirement) bool { if r.key != x.key { diff --git a/vendor/k8s.io/apimachinery/pkg/runtime/extension.go b/vendor/k8s.io/apimachinery/pkg/runtime/extension.go index 9056397fa5170..60c000bcb713d 100644 --- a/vendor/k8s.io/apimachinery/pkg/runtime/extension.go +++ b/vendor/k8s.io/apimachinery/pkg/runtime/extension.go @@ -18,16 +18,77 @@ package runtime import ( "bytes" - "encoding/json" "errors" + "fmt" + + cbor "k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct" + "k8s.io/apimachinery/pkg/util/json" ) +// RawExtension intentionally avoids implementing value.UnstructuredConverter for now because the +// signature of ToUnstructured does not allow returning an error value in cases where the conversion +// is not possible (content type is unrecognized or bytes don't match content type). +func rawToUnstructured(raw []byte, contentType string) (interface{}, error) { + switch contentType { + case ContentTypeJSON: + var u interface{} + if err := json.Unmarshal(raw, &u); err != nil { + return nil, fmt.Errorf("failed to parse RawExtension bytes as JSON: %w", err) + } + return u, nil + case ContentTypeCBOR: + var u interface{} + if err := cbor.Unmarshal(raw, &u); err != nil { + return nil, fmt.Errorf("failed to parse RawExtension bytes as CBOR: %w", err) + } + return u, nil + default: + return nil, fmt.Errorf("cannot convert RawExtension with unrecognized content type to unstructured") + } +} + +func (re RawExtension) guessContentType() string { + switch { + case bytes.HasPrefix(re.Raw, cborSelfDescribed): + return ContentTypeCBOR + case len(re.Raw) > 0: + switch re.Raw[0] { + case '\t', '\r', '\n', ' ', '{', '[', 'n', 't', 'f', '"', '-', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9': + // Prefixes for the four whitespace characters, objects, arrays, strings, numbers, true, false, and null. + return ContentTypeJSON + } + } + return "" +} + func (re *RawExtension) UnmarshalJSON(in []byte) error { if re == nil { return errors.New("runtime.RawExtension: UnmarshalJSON on nil pointer") } - if !bytes.Equal(in, []byte("null")) { - re.Raw = append(re.Raw[0:0], in...) + if bytes.Equal(in, []byte("null")) { + return nil + } + re.Raw = append(re.Raw[0:0], in...) + return nil +} + +var ( + cborNull = []byte{0xf6} + cborSelfDescribed = []byte{0xd9, 0xd9, 0xf7} +) + +func (re *RawExtension) UnmarshalCBOR(in []byte) error { + if re == nil { + return errors.New("runtime.RawExtension: UnmarshalCBOR on nil pointer") + } + if !bytes.Equal(in, cborNull) { + if !bytes.HasPrefix(in, cborSelfDescribed) { + // The self-described CBOR tag doesn't change the interpretation of the data + // item it encloses, but it is useful as a magic number. Its encoding is + // also what is used to implement the CBOR RecognizingDecoder. + re.Raw = append(re.Raw[:0], cborSelfDescribed...) + } + re.Raw = append(re.Raw, in...) } return nil } @@ -46,6 +107,35 @@ func (re RawExtension) MarshalJSON() ([]byte, error) { } return []byte("null"), nil } - // TODO: Check whether ContentType is actually JSON before returning it. - return re.Raw, nil + + contentType := re.guessContentType() + if contentType == ContentTypeJSON { + return re.Raw, nil + } + + u, err := rawToUnstructured(re.Raw, contentType) + if err != nil { + return nil, err + } + return json.Marshal(u) +} + +func (re RawExtension) MarshalCBOR() ([]byte, error) { + if re.Raw == nil { + if re.Object != nil { + return cbor.Marshal(re.Object) + } + return cbor.Marshal(nil) + } + + contentType := re.guessContentType() + if contentType == ContentTypeCBOR { + return re.Raw, nil + } + + u, err := rawToUnstructured(re.Raw, contentType) + if err != nil { + return nil, err + } + return cbor.Marshal(u) } diff --git a/vendor/k8s.io/apimachinery/pkg/runtime/generated.pb.go b/vendor/k8s.io/apimachinery/pkg/runtime/generated.pb.go index ec677a7d96293..2e40e140aec4b 100644 --- a/vendor/k8s.io/apimachinery/pkg/runtime/generated.pb.go +++ b/vendor/k8s.io/apimachinery/pkg/runtime/generated.pb.go @@ -15,7 +15,7 @@ limitations under the License. */ // Code generated by protoc-gen-gogo. DO NOT EDIT. -// source: k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/runtime/generated.proto +// source: k8s.io/apimachinery/pkg/runtime/generated.proto package runtime @@ -45,7 +45,7 @@ const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package func (m *RawExtension) Reset() { *m = RawExtension{} } func (*RawExtension) ProtoMessage() {} func (*RawExtension) Descriptor() ([]byte, []int) { - return fileDescriptor_9d3c45d7f546725c, []int{0} + return fileDescriptor_2e0e4b920403a48c, []int{0} } func (m *RawExtension) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -73,7 +73,7 @@ var xxx_messageInfo_RawExtension proto.InternalMessageInfo func (m *TypeMeta) Reset() { *m = TypeMeta{} } func (*TypeMeta) ProtoMessage() {} func (*TypeMeta) Descriptor() ([]byte, []int) { - return fileDescriptor_9d3c45d7f546725c, []int{1} + return fileDescriptor_2e0e4b920403a48c, []int{1} } func (m *TypeMeta) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -101,7 +101,7 @@ var xxx_messageInfo_TypeMeta proto.InternalMessageInfo func (m *Unknown) Reset() { *m = Unknown{} } func (*Unknown) ProtoMessage() {} func (*Unknown) Descriptor() ([]byte, []int) { - return fileDescriptor_9d3c45d7f546725c, []int{2} + return fileDescriptor_2e0e4b920403a48c, []int{2} } func (m *Unknown) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -133,35 +133,34 @@ func init() { } func init() { - proto.RegisterFile("k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/runtime/generated.proto", fileDescriptor_9d3c45d7f546725c) -} - -var fileDescriptor_9d3c45d7f546725c = []byte{ - // 380 bytes of a gzipped FileDescriptorProto - 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x84, 0x92, 0xcf, 0xaa, 0x13, 0x31, - 0x14, 0xc6, 0x27, 0xb7, 0x85, 0x7b, 0x4d, 0x0b, 0x57, 0xe2, 0xc2, 0xd1, 0x45, 0xe6, 0xd2, 0x95, - 0x77, 0x61, 0x02, 0x17, 0x04, 0xb7, 0x9d, 0x52, 0x50, 0x44, 0x90, 0xe0, 0x1f, 0x70, 0x65, 0x3a, - 0x13, 0xa7, 0x61, 0xe8, 0xc9, 0x90, 0x66, 0x1c, 0xbb, 0xf3, 0x11, 0x7c, 0xac, 0x2e, 0xbb, 0xec, - 0xaa, 0xd8, 0xf1, 0x21, 0xdc, 0x4a, 0xd3, 0xb4, 0x56, 0x5d, 0x74, 0x97, 0x73, 0xbe, 0xef, 0xf7, - 0x9d, 0x73, 0x20, 0xf8, 0x45, 0xf9, 0x7c, 0xce, 0xb4, 0xe1, 0x65, 0x3d, 0x51, 0x16, 0x94, 0x53, - 0x73, 0xfe, 0x45, 0x41, 0x6e, 0x2c, 0x0f, 0x82, 0xac, 0xf4, 0x4c, 0x66, 0x53, 0x0d, 0xca, 0x2e, - 0x78, 0x55, 0x16, 0xdc, 0xd6, 0xe0, 0xf4, 0x4c, 0xf1, 0x42, 0x81, 0xb2, 0xd2, 0xa9, 0x9c, 0x55, - 0xd6, 0x38, 0x43, 0x92, 0x3d, 0xc0, 0x4e, 0x01, 0x56, 0x95, 0x05, 0x0b, 0xc0, 0xe3, 0xa7, 0x85, - 0x76, 0xd3, 0x7a, 0xc2, 0x32, 0x33, 0xe3, 0x85, 0x29, 0x0c, 0xf7, 0xdc, 0xa4, 0xfe, 0xec, 0x2b, - 0x5f, 0xf8, 0xd7, 0x3e, 0x6f, 0x70, 0x8b, 0xfb, 0x42, 0x36, 0xe3, 0xaf, 0x4e, 0xc1, 0x5c, 0x1b, - 0x20, 0x8f, 0x70, 0xc7, 0xca, 0x26, 0x46, 0x37, 0xe8, 0x49, 0x3f, 0xbd, 0x6c, 0x37, 0x49, 0x47, - 0xc8, 0x46, 0xec, 0x7a, 0x83, 0x4f, 0xf8, 0xea, 0xed, 0xa2, 0x52, 0xaf, 0x95, 0x93, 0xe4, 0x0e, - 0x63, 0x59, 0xe9, 0xf7, 0xca, 0xee, 0x20, 0xef, 0xbe, 0x97, 0x92, 0xe5, 0x26, 0x89, 0xda, 0x4d, - 0x82, 0x87, 0x6f, 0x5e, 0x06, 0x45, 0x9c, 0xb8, 0xc8, 0x0d, 0xee, 0x96, 0x1a, 0xf2, 0xf8, 0xc2, - 0xbb, 0xfb, 0xc1, 0xdd, 0x7d, 0xa5, 0x21, 0x17, 0x5e, 0x19, 0xfc, 0x42, 0xf8, 0xf2, 0x1d, 0x94, - 0x60, 0x1a, 0x20, 0x1f, 0xf0, 0x95, 0x0b, 0xd3, 0x7c, 0x7e, 0xef, 0xee, 0x96, 0x9d, 0xb9, 0x9d, - 0x1d, 0xd6, 0x4b, 0xef, 0x87, 0xf0, 0xe3, 0xc2, 0xe2, 0x18, 0x76, 0xb8, 0xf0, 0xe2, 0xff, 0x0b, - 0xc9, 0x10, 0x5f, 0x67, 0x06, 0x9c, 0x02, 0x37, 0x86, 0xcc, 0xe4, 0x1a, 0x8a, 0xb8, 0xe3, 0x97, - 0x7d, 0x18, 0xf2, 0xae, 0x47, 0x7f, 0xcb, 0xe2, 0x5f, 0x3f, 0x79, 0x86, 0x7b, 0xa1, 0xb5, 0x1b, - 0x1d, 0x77, 0x3d, 0xfe, 0x20, 0xe0, 0xbd, 0xd1, 0x1f, 0x49, 0x9c, 0xfa, 0xd2, 0xf1, 0x72, 0x4b, - 0xa3, 0xd5, 0x96, 0x46, 0xeb, 0x2d, 0x8d, 0xbe, 0xb5, 0x14, 0x2d, 0x5b, 0x8a, 0x56, 0x2d, 0x45, - 0xeb, 0x96, 0xa2, 0x1f, 0x2d, 0x45, 0xdf, 0x7f, 0xd2, 0xe8, 0x63, 0x72, 0xe6, 0xb7, 0xfc, 0x0e, - 0x00, 0x00, 0xff, 0xff, 0x1f, 0x32, 0xd5, 0x68, 0x68, 0x02, 0x00, 0x00, + proto.RegisterFile("k8s.io/apimachinery/pkg/runtime/generated.proto", fileDescriptor_2e0e4b920403a48c) +} + +var fileDescriptor_2e0e4b920403a48c = []byte{ + // 365 bytes of a gzipped FileDescriptorProto + 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x84, 0x92, 0x4f, 0x6b, 0x22, 0x31, + 0x18, 0xc6, 0x27, 0x2a, 0xe8, 0x46, 0xc1, 0x25, 0x7b, 0xd8, 0xd9, 0x3d, 0x64, 0xc4, 0xd3, 0x7a, + 0xd8, 0x0c, 0x08, 0x85, 0x5e, 0x1d, 0xf1, 0x50, 0x4a, 0xa1, 0x84, 0xfe, 0x81, 0x9e, 0x1a, 0x67, + 0xd2, 0x31, 0x0c, 0x26, 0xc3, 0x18, 0x99, 0x7a, 0xeb, 0x47, 0xe8, 0xc7, 0xf2, 0xe8, 0xd1, 0x93, + 0xd4, 0xe9, 0x87, 0xe8, 0xb5, 0x18, 0xa3, 0xb5, 0xed, 0xc1, 0x5b, 0xde, 0xf7, 0x79, 0x7e, 0xcf, + 0xfb, 0xbe, 0x10, 0xe8, 0x27, 0xa7, 0x13, 0x22, 0x94, 0xcf, 0x52, 0x31, 0x66, 0xe1, 0x48, 0x48, + 0x9e, 0xcd, 0xfc, 0x34, 0x89, 0xfd, 0x6c, 0x2a, 0xb5, 0x18, 0x73, 0x3f, 0xe6, 0x92, 0x67, 0x4c, + 0xf3, 0x88, 0xa4, 0x99, 0xd2, 0x0a, 0x79, 0x5b, 0x80, 0x1c, 0x02, 0x24, 0x4d, 0x62, 0x62, 0x81, + 0xbf, 0xff, 0x63, 0xa1, 0x47, 0xd3, 0x21, 0x09, 0xd5, 0xd8, 0x8f, 0x55, 0xac, 0x7c, 0xc3, 0x0d, + 0xa7, 0x0f, 0xa6, 0x32, 0x85, 0x79, 0x6d, 0xf3, 0xda, 0x1d, 0xd8, 0xa0, 0x2c, 0x1f, 0x3c, 0x6a, + 0x2e, 0x27, 0x42, 0x49, 0xf4, 0x07, 0x96, 0x33, 0x96, 0xbb, 0xa0, 0x05, 0xfe, 0x35, 0x82, 0x6a, + 0xb1, 0xf2, 0xca, 0x94, 0xe5, 0x74, 0xd3, 0x6b, 0xdf, 0xc3, 0xda, 0xd5, 0x2c, 0xe5, 0x17, 0x5c, + 0x33, 0xd4, 0x85, 0x90, 0xa5, 0xe2, 0x86, 0x67, 0x1b, 0xc8, 0xb8, 0x7f, 0x04, 0x68, 0xbe, 0xf2, + 0x9c, 0x62, 0xe5, 0xc1, 0xde, 0xe5, 0x99, 0x55, 0xe8, 0x81, 0x0b, 0xb5, 0x60, 0x25, 0x11, 0x32, + 0x72, 0x4b, 0xc6, 0xdd, 0xb0, 0xee, 0xca, 0xb9, 0x90, 0x11, 0x35, 0x4a, 0xfb, 0x0d, 0xc0, 0xea, + 0xb5, 0x4c, 0xa4, 0xca, 0x25, 0xba, 0x85, 0x35, 0x6d, 0xa7, 0x99, 0xfc, 0x7a, 0xb7, 0x43, 0x8e, + 0xdc, 0x4e, 0x76, 0xeb, 0x05, 0x3f, 0x6d, 0xf8, 0x7e, 0x61, 0xba, 0x0f, 0xdb, 0x5d, 0x58, 0xfa, + 0x7e, 0x21, 0xea, 0xc1, 0x66, 0xa8, 0xa4, 0xe6, 0x52, 0x0f, 0x64, 0xa8, 0x22, 0x21, 0x63, 0xb7, + 0x6c, 0x96, 0xfd, 0x6d, 0xf3, 0x9a, 0xfd, 0xcf, 0x32, 0xfd, 0xea, 0x47, 0x27, 0xb0, 0x6e, 0x5b, + 0x9b, 0xd1, 0x6e, 0xc5, 0xe0, 0xbf, 0x2c, 0x5e, 0xef, 0x7f, 0x48, 0xf4, 0xd0, 0x17, 0x0c, 0xe6, + 0x6b, 0xec, 0x2c, 0xd6, 0xd8, 0x59, 0xae, 0xb1, 0xf3, 0x54, 0x60, 0x30, 0x2f, 0x30, 0x58, 0x14, + 0x18, 0x2c, 0x0b, 0x0c, 0x5e, 0x0a, 0x0c, 0x9e, 0x5f, 0xb1, 0x73, 0xe7, 0x1d, 0xf9, 0x2d, 0xef, + 0x01, 0x00, 0x00, 0xff, 0xff, 0x2a, 0x9b, 0x09, 0xb3, 0x4f, 0x02, 0x00, 0x00, } func (m *RawExtension) Marshal() (dAtA []byte, err error) { diff --git a/vendor/k8s.io/apimachinery/pkg/runtime/helper.go b/vendor/k8s.io/apimachinery/pkg/runtime/helper.go index f46a24cc6c355..cc0a77bba6f68 100644 --- a/vendor/k8s.io/apimachinery/pkg/runtime/helper.go +++ b/vendor/k8s.io/apimachinery/pkg/runtime/helper.go @@ -236,10 +236,14 @@ func (e WithVersionEncoder) Encode(obj Object, stream io.Writer) error { gvk = preferredGVK } } - kind.SetGroupVersionKind(gvk) - err = e.Encoder.Encode(obj, stream) - kind.SetGroupVersionKind(oldGVK) - return err + + // The gvk only needs to be set if not already as desired. + if gvk != oldGVK { + kind.SetGroupVersionKind(gvk) + defer kind.SetGroupVersionKind(oldGVK) + } + + return e.Encoder.Encode(obj, stream) } // WithoutVersionDecoder clears the group version kind of a deserialized object. diff --git a/vendor/k8s.io/apimachinery/pkg/runtime/schema/generated.pb.go b/vendor/k8s.io/apimachinery/pkg/runtime/schema/generated.pb.go index 46b1e787bdead..7a26d2798ed7a 100644 --- a/vendor/k8s.io/apimachinery/pkg/runtime/schema/generated.pb.go +++ b/vendor/k8s.io/apimachinery/pkg/runtime/schema/generated.pb.go @@ -15,7 +15,7 @@ limitations under the License. */ // Code generated by protoc-gen-gogo. DO NOT EDIT. -// source: k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/runtime/schema/generated.proto +// source: k8s.io/apimachinery/pkg/runtime/schema/generated.proto package schema @@ -39,21 +39,20 @@ var _ = math.Inf const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package func init() { - proto.RegisterFile("k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/runtime/schema/generated.proto", fileDescriptor_0462724132518e0d) + proto.RegisterFile("k8s.io/apimachinery/pkg/runtime/schema/generated.proto", fileDescriptor_25f8f0eed21c6089) } -var fileDescriptor_0462724132518e0d = []byte{ - // 186 bytes of a gzipped FileDescriptorProto - 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0xce, 0xad, 0x8e, 0xc3, 0x30, - 0x0c, 0xc0, 0xf1, 0x84, 0x1e, 0x3c, 0x78, 0xc0, 0xb0, 0xec, 0x62, 0x7a, 0xf8, 0xf0, 0xa4, 0xf1, - 0xb1, 0xb4, 0xf5, 0xd2, 0x28, 0xca, 0x87, 0xd2, 0x64, 0xd2, 0xd8, 0x1e, 0x61, 0x8f, 0x55, 0x58, - 0x58, 0xb8, 0x66, 0x2f, 0x32, 0x29, 0x2d, 0x18, 0x1c, 0xf3, 0x5f, 0xd6, 0xcf, 0xf2, 0xd7, 0xd1, - 0xfc, 0x8d, 0x42, 0x7b, 0x34, 0xb9, 0xa5, 0xe8, 0x28, 0xd1, 0x88, 0x17, 0x72, 0xbd, 0x8f, 0xb8, - 0x2f, 0x64, 0xd0, 0x56, 0x76, 0x83, 0x76, 0x14, 0xaf, 0x18, 0x8c, 0xc2, 0x98, 0x5d, 0xd2, 0x96, - 0x70, 0xec, 0x06, 0xb2, 0x12, 0x15, 0x39, 0x8a, 0x32, 0x51, 0x2f, 0x42, 0xf4, 0xc9, 0x7f, 0x37, - 0x9b, 0x13, 0xef, 0x4e, 0x04, 0xa3, 0xc4, 0xee, 0xc4, 0xe6, 0x7e, 0x7e, 0x95, 0x4e, 0x43, 0x6e, - 0x45, 0xe7, 0x2d, 0x2a, 0xaf, 0x3c, 0x56, 0xde, 0xe6, 0x73, 0xad, 0x1a, 0x75, 0xda, 0xce, 0xfe, - 0x1f, 0xa6, 0x15, 0xd8, 0xbc, 0x02, 0x5b, 0x56, 0x60, 0xb7, 0x02, 0x7c, 0x2a, 0xc0, 0xe7, 0x02, - 0x7c, 0x29, 0xc0, 0x1f, 0x05, 0xf8, 0xfd, 0x09, 0xec, 0xd4, 0x7c, 0xf6, 0xf4, 0x2b, 0x00, 0x00, - 0xff, 0xff, 0x12, 0xb4, 0xae, 0x48, 0xf6, 0x00, 0x00, 0x00, +var fileDescriptor_25f8f0eed21c6089 = []byte{ + // 170 bytes of a gzipped FileDescriptorProto + 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0xce, 0xa1, 0x0e, 0xc2, 0x30, + 0x10, 0xc6, 0xf1, 0xd6, 0x22, 0x91, 0x88, 0x93, 0x73, 0xdc, 0x39, 0x82, 0x46, 0xf3, 0x04, 0xb8, + 0x6e, 0x94, 0xae, 0x59, 0xba, 0x6b, 0xba, 0x4e, 0xe0, 0x78, 0x04, 0x1e, 0x6b, 0x72, 0x72, 0x92, + 0x95, 0x17, 0x21, 0x69, 0x11, 0x48, 0xdc, 0xfd, 0xc5, 0xef, 0xf2, 0x6d, 0x0e, 0xdd, 0x71, 0x40, + 0xcb, 0xa4, 0xbc, 0x75, 0xaa, 0x69, 0x6d, 0xaf, 0xc3, 0x9d, 0x7c, 0x67, 0x28, 0x8c, 0x7d, 0xb4, + 0x4e, 0xd3, 0xd0, 0xb4, 0xda, 0x29, 0x32, 0xba, 0xd7, 0x41, 0x45, 0x7d, 0x45, 0x1f, 0x38, 0xf2, + 0xb6, 0x2a, 0x0e, 0x7f, 0x1d, 0xfa, 0xce, 0xe0, 0xd7, 0x61, 0x71, 0xbb, 0xbd, 0xb1, 0xb1, 0x1d, + 0x6b, 0x6c, 0xd8, 0x91, 0x61, 0xc3, 0x94, 0x79, 0x3d, 0xde, 0x72, 0xe5, 0xc8, 0x57, 0x79, 0x7b, + 0x3a, 0x4f, 0x2b, 0x88, 0x79, 0x05, 0xb1, 0xac, 0x20, 0x1e, 0x09, 0xe4, 0x94, 0x40, 0xce, 0x09, + 0xe4, 0x92, 0x40, 0xbe, 0x12, 0xc8, 0xe7, 0x1b, 0xc4, 0xa5, 0xfa, 0x6f, 0xf4, 0x27, 0x00, 0x00, + 0xff, 0xff, 0x97, 0xb8, 0x4d, 0x1f, 0xdd, 0x00, 0x00, 0x00, } diff --git a/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct/direct.go b/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct/direct.go new file mode 100644 index 0000000000000..cd78b1df26667 --- /dev/null +++ b/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct/direct.go @@ -0,0 +1,36 @@ +/* +Copyright 2024 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +// Package direct provides functions for marshaling and unmarshaling between arbitrary Go values and +// CBOR data, with behavior that is compatible with that of the CBOR serializer. In particular, +// types that implement cbor.Marshaler and cbor.Unmarshaler should use these functions. +package direct + +import ( + "k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes" +) + +func Marshal(src interface{}) ([]byte, error) { + return modes.Encode.Marshal(src) +} + +func Unmarshal(src []byte, dst interface{}) error { + return modes.Decode.Unmarshal(src, dst) +} + +func Diagnose(src []byte) (string, error) { + return modes.Diagnostic.Diagnose(src) +} diff --git a/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/buffers.go b/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/buffers.go new file mode 100644 index 0000000000000..f14cbd6b5861c --- /dev/null +++ b/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/buffers.go @@ -0,0 +1,65 @@ +/* +Copyright 2024 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package modes + +import ( + "bytes" + "sync" +) + +var buffers = BufferProvider{p: new(sync.Pool)} + +type buffer struct { + bytes.Buffer +} + +type pool interface { + Get() interface{} + Put(interface{}) +} + +type BufferProvider struct { + p pool +} + +func (b *BufferProvider) Get() *buffer { + if buf, ok := b.p.Get().(*buffer); ok { + return buf + } + return &buffer{} +} + +func (b *BufferProvider) Put(buf *buffer) { + if buf.Cap() > 3*1024*1024 /* Default MaxRequestBodyBytes */ { + // Objects in a sync.Pool are assumed to be fungible. This is not a good assumption + // for pools of *bytes.Buffer because a *bytes.Buffer's underlying array grows as + // needed to accommodate writes. In Kubernetes, apiservers tend to encode "small" + // objects very frequently and much larger objects (especially large lists) only + // occasionally. Under steady load, pooled buffers tend to be borrowed frequently + // enough to prevent them from being released. Over time, each buffer is used to + // encode a large object and its capacity increases accordingly. The result is that + // practically all buffers in the pool retain much more capacity than needed to + // encode most objects. + + // As a basic mitigation for the worst case, buffers with more capacity than the + // default max request body size are never returned to the pool. + // TODO: Optimize for higher buffer utilization. + return + } + buf.Reset() + b.p.Put(buf) +} diff --git a/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/custom.go b/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/custom.go new file mode 100644 index 0000000000000..858529e958a51 --- /dev/null +++ b/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/custom.go @@ -0,0 +1,422 @@ +/* +Copyright 2024 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package modes + +import ( + "encoding" + "encoding/json" + "errors" + "fmt" + "reflect" + "sync" + + "github.com/fxamacker/cbor/v2" +) + +// Returns a non-nil error if and only if the argument's type (or one of its component types, for +// composite types) implements json.Marshaler or encoding.TextMarshaler without also implementing +// cbor.Marshaler and likewise for the respective Unmarshaler interfaces. +// +// This is a temporary, graduation-blocking restriction and will be removed in favor of automatic +// transcoding between CBOR and JSON/text for these types. This restriction allows CBOR to be +// exercised for in-tree and unstructured types while mitigating the risk of mangling out-of-tree +// types in client programs. +func RejectCustomMarshalers(v interface{}) error { + if v == nil { + return nil + } + rv := reflect.ValueOf(v) + if err := marshalerCache.getChecker(rv.Type()).check(rv, maxDepth); err != nil { + return fmt.Errorf("unable to serialize %T: %w", v, err) + } + if err := unmarshalerCache.getChecker(rv.Type()).check(rv, maxDepth); err != nil { + return fmt.Errorf("unable to serialize %T: %w", v, err) + } + return nil +} + +// Recursion depth is limited as a basic mitigation against cyclic objects. Objects created by the +// decoder shouldn't be able to contain cycles, but practically any object can be passed to the +// encoder. +var errMaxDepthExceeded = errors.New("object depth exceeds limit (possible cycle?)") + +// The JSON encoder begins detecting cycles after depth 1000. Use a generous limit here, knowing +// that it can might deeply nested acyclic objects. The limit will be removed along with the rest of +// this mechanism. +const maxDepth = 2048 + +var marshalerCache = checkers{ + cborInterface: reflect.TypeFor[cbor.Marshaler](), + nonCBORInterfaces: []reflect.Type{ + reflect.TypeFor[json.Marshaler](), + reflect.TypeFor[encoding.TextMarshaler](), + }, +} + +var unmarshalerCache = checkers{ + cborInterface: reflect.TypeFor[cbor.Unmarshaler](), + nonCBORInterfaces: []reflect.Type{ + reflect.TypeFor[json.Unmarshaler](), + reflect.TypeFor[encoding.TextUnmarshaler](), + }, + assumeAddressableValues: true, +} + +// checker wraps a function for dynamically checking a value of a specific type for custom JSON +// behaviors not matched by a custom CBOR behavior. +type checker struct { + // check returns a non-nil error if the given value might be marshalled to or from CBOR + // using the default behavior for its kind, but marshalled to or from JSON using custom + // behavior. + check func(rv reflect.Value, depth int) error + + // safe returns true if all values of this type are safe from mismatched custom marshalers. + safe func() bool +} + +// TODO: stale +// Having a single addressable checker for comparisons lets us prune and collapse parts of the +// object traversal that are statically known to be safe. Depending on the type, it may be +// unnecessary to inspect each value of that type. For example, no value of the built-in type bool +// can implement json.Marshaler (a named type whose underlying type is bool could, but it is a +// distinct type from bool). +var noop = checker{ + safe: func() bool { + return true + }, + check: func(rv reflect.Value, depth int) error { + return nil + }, +} + +type checkers struct { + m sync.Map // reflect.Type => *checker + + cborInterface reflect.Type + nonCBORInterfaces []reflect.Type + + assumeAddressableValues bool +} + +func (cache *checkers) getChecker(rt reflect.Type) checker { + if ptr, ok := cache.m.Load(rt); ok { + return *ptr.(*checker) + } + + return cache.getCheckerInternal(rt, nil) +} + +// linked list node representing the path from a composite type to an element type +type path struct { + Type reflect.Type + Parent *path +} + +func (p path) cyclic(rt reflect.Type) bool { + for ancestor := &p; ancestor != nil; ancestor = ancestor.Parent { + if ancestor.Type == rt { + return true + } + } + return false +} + +func (cache *checkers) getCheckerInternal(rt reflect.Type, parent *path) (c checker) { + // Store a placeholder cache entry first to handle cyclic types. + var wg sync.WaitGroup + wg.Add(1) + defer wg.Done() + c = checker{ + safe: func() bool { + wg.Wait() + return c.safe() + }, + check: func(rv reflect.Value, depth int) error { + wg.Wait() + return c.check(rv, depth) + }, + } + if actual, loaded := cache.m.LoadOrStore(rt, &c); loaded { + // Someone else stored an entry for this type, use it. + return *actual.(*checker) + } + + // Take a nonreflective path for the unstructured container types. They're common and + // usually nested inside one another. + switch rt { + case reflect.TypeFor[map[string]interface{}](), reflect.TypeFor[[]interface{}](): + return checker{ + safe: func() bool { + return false + }, + check: func(rv reflect.Value, depth int) error { + return checkUnstructuredValue(cache, rv.Interface(), depth) + }, + } + } + + // It's possible that one of the relevant interfaces is implemented on a type with a pointer + // receiver, but that a particular value of that type is not addressable. For example: + // + // func (Foo) MarshalText() ([]byte, error) { ... } + // func (*Foo) MarshalCBOR() ([]byte, error) { ... } + // + // Both methods are in the method set of *Foo, but the method set of Foo contains only + // MarshalText. + // + // Both the unmarshaler and marshaler checks assume that methods implementing a JSON or text + // interface with a pointer receiver are always accessible. Only the unmarshaler check + // assumes that CBOR methods with pointer receivers are accessible. + + if rt.Implements(cache.cborInterface) { + return noop + } + for _, unsafe := range cache.nonCBORInterfaces { + if rt.Implements(unsafe) { + err := fmt.Errorf("%v implements %v without corresponding cbor interface", rt, unsafe) + return checker{ + safe: func() bool { + return false + }, + check: func(reflect.Value, int) error { + return err + }, + } + } + } + + if cache.assumeAddressableValues && reflect.PointerTo(rt).Implements(cache.cborInterface) { + return noop + } + for _, unsafe := range cache.nonCBORInterfaces { + if reflect.PointerTo(rt).Implements(unsafe) { + err := fmt.Errorf("%v implements %v without corresponding cbor interface", reflect.PointerTo(rt), unsafe) + return checker{ + safe: func() bool { + return false + }, + check: func(reflect.Value, int) error { + return err + }, + } + } + } + + self := &path{Type: rt, Parent: parent} + + switch rt.Kind() { + case reflect.Array: + ce := cache.getCheckerInternal(rt.Elem(), self) + rtlen := rt.Len() + if rtlen == 0 || (!self.cyclic(rt.Elem()) && ce.safe()) { + return noop + } + return checker{ + safe: func() bool { + return false + }, + check: func(rv reflect.Value, depth int) error { + if depth <= 0 { + return errMaxDepthExceeded + } + for i := 0; i < rtlen; i++ { + if err := ce.check(rv.Index(i), depth-1); err != nil { + return err + } + } + return nil + }, + } + + case reflect.Interface: + // All interface values have to be checked because their dynamic type might + // implement one of the interesting interfaces or be composed of another type that + // does. + return checker{ + safe: func() bool { + return false + }, + check: func(rv reflect.Value, depth int) error { + if rv.IsNil() { + return nil + } + // Unpacking interfaces must count against recursion depth, + // consider this cycle: + // > var i interface{} + // > var p *interface{} = &i + // > i = p + // > rv := reflect.ValueOf(i) + // > for { + // > rv = rv.Elem() + // > } + if depth <= 0 { + return errMaxDepthExceeded + } + rv = rv.Elem() + return cache.getChecker(rv.Type()).check(rv, depth-1) + }, + } + + case reflect.Map: + rtk := rt.Key() + ck := cache.getCheckerInternal(rtk, self) + rte := rt.Elem() + ce := cache.getCheckerInternal(rte, self) + if !self.cyclic(rtk) && !self.cyclic(rte) && ck.safe() && ce.safe() { + return noop + } + return checker{ + safe: func() bool { + return false + }, + check: func(rv reflect.Value, depth int) error { + if depth <= 0 { + return errMaxDepthExceeded + } + iter := rv.MapRange() + rvk := reflect.New(rtk).Elem() + rve := reflect.New(rte).Elem() + for iter.Next() { + rvk.SetIterKey(iter) + if err := ck.check(rvk, depth-1); err != nil { + return err + } + rve.SetIterValue(iter) + if err := ce.check(rve, depth-1); err != nil { + return err + } + } + return nil + }, + } + + case reflect.Pointer: + ce := cache.getCheckerInternal(rt.Elem(), self) + if !self.cyclic(rt.Elem()) && ce.safe() { + return noop + } + return checker{ + safe: func() bool { + return false + }, + check: func(rv reflect.Value, depth int) error { + if rv.IsNil() { + return nil + } + if depth <= 0 { + return errMaxDepthExceeded + } + return ce.check(rv.Elem(), depth-1) + }, + } + + case reflect.Slice: + ce := cache.getCheckerInternal(rt.Elem(), self) + if !self.cyclic(rt.Elem()) && ce.safe() { + return noop + } + return checker{ + safe: func() bool { + return false + }, + check: func(rv reflect.Value, depth int) error { + if depth <= 0 { + return errMaxDepthExceeded + } + for i := 0; i < rv.Len(); i++ { + if err := ce.check(rv.Index(i), depth-1); err != nil { + return err + } + } + return nil + }, + } + + case reflect.Struct: + type field struct { + Index int + Checker checker + } + var fields []field + for i := 0; i < rt.NumField(); i++ { + f := rt.Field(i) + cf := cache.getCheckerInternal(f.Type, self) + if !self.cyclic(f.Type) && cf.safe() { + continue + } + fields = append(fields, field{Index: i, Checker: cf}) + } + if len(fields) == 0 { + return noop + } + return checker{ + safe: func() bool { + return false + }, + check: func(rv reflect.Value, depth int) error { + if depth <= 0 { + return errMaxDepthExceeded + } + for _, fi := range fields { + if err := fi.Checker.check(rv.Field(fi.Index), depth-1); err != nil { + return err + } + } + return nil + }, + } + + default: + // Not a serializable composite type (funcs and channels are composite types but are + // rejected by JSON and CBOR serialization). + return noop + + } +} + +func checkUnstructuredValue(cache *checkers, v interface{}, depth int) error { + switch v := v.(type) { + case nil, bool, int64, float64, string: + return nil + case []interface{}: + if depth <= 0 { + return errMaxDepthExceeded + } + for _, element := range v { + if err := checkUnstructuredValue(cache, element, depth-1); err != nil { + return err + } + } + return nil + case map[string]interface{}: + if depth <= 0 { + return errMaxDepthExceeded + } + for _, element := range v { + if err := checkUnstructuredValue(cache, element, depth-1); err != nil { + return err + } + } + return nil + default: + // Unmarshaling an unstructured doesn't use other dynamic types, but nothing + // prevents inserting values with arbitrary dynamic types into unstructured content, + // as long as they can be marshalled. + rv := reflect.ValueOf(v) + return cache.getChecker(rv.Type()).check(rv, depth) + } +} diff --git a/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/decode.go b/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/decode.go new file mode 100644 index 0000000000000..895b0deff957e --- /dev/null +++ b/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/decode.go @@ -0,0 +1,158 @@ +/* +Copyright 2024 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package modes + +import ( + "reflect" + + "github.com/fxamacker/cbor/v2" +) + +var simpleValues *cbor.SimpleValueRegistry = func() *cbor.SimpleValueRegistry { + var opts []func(*cbor.SimpleValueRegistry) error + for sv := 0; sv <= 255; sv++ { + // Reject simple values 0-19, 23, and 32-255. The simple values 24-31 are reserved + // and considered ill-formed by the CBOR specification. We only accept false (20), + // true (21), and null (22). + switch sv { + case 20: // false + case 21: // true + case 22: // null + case 24, 25, 26, 27, 28, 29, 30, 31: // reserved + default: + opts = append(opts, cbor.WithRejectedSimpleValue(cbor.SimpleValue(sv))) + } + } + simpleValues, err := cbor.NewSimpleValueRegistryFromDefaults(opts...) + if err != nil { + panic(err) + } + return simpleValues +}() + +var Decode cbor.DecMode = func() cbor.DecMode { + decode, err := cbor.DecOptions{ + // Maps with duplicate keys are well-formed but invalid according to the CBOR spec + // and never acceptable. Unlike the JSON serializer, inputs containing duplicate map + // keys are rejected outright and not surfaced as a strict decoding error. + DupMapKey: cbor.DupMapKeyEnforcedAPF, + + // For JSON parity, decoding an RFC3339 string into time.Time needs to be accepted + // with or without tagging. If a tag number is present, it must be valid. + TimeTag: cbor.DecTagOptional, + + // Observed depth up to 16 in fuzzed batch/v1 CronJobList. JSON implementation limit + // is 10000. + MaxNestedLevels: 64, + + MaxArrayElements: 1024, + MaxMapPairs: 1024, + + // Indefinite-length sequences aren't produced by this serializer, but other + // implementations can. + IndefLength: cbor.IndefLengthAllowed, + + // Accept inputs that contain CBOR tags. + TagsMd: cbor.TagsAllowed, + + // Decode type 0 (unsigned integer) as int64. + // TODO: IntDecConvertSignedOrFail errors on overflow, JSON will try to fall back to float64. + IntDec: cbor.IntDecConvertSignedOrFail, + + // Disable producing map[cbor.ByteString]interface{}, which is not acceptable for + // decodes into interface{}. + MapKeyByteString: cbor.MapKeyByteStringForbidden, + + // Error on map keys that don't map to a field in the destination struct. + ExtraReturnErrors: cbor.ExtraDecErrorUnknownField, + + // Decode maps into concrete type map[string]interface{} when the destination is an + // interface{}. + DefaultMapType: reflect.TypeOf(map[string]interface{}(nil)), + + // A CBOR text string whose content is not a valid UTF-8 sequence is well-formed but + // invalid according to the CBOR spec. Reject invalid inputs. Encoders are + // responsible for ensuring that all text strings they produce contain valid UTF-8 + // sequences and may use the byte string major type to encode strings that have not + // been validated. + UTF8: cbor.UTF8RejectInvalid, + + // Never make a case-insensitive match between a map key and a struct field. + FieldNameMatching: cbor.FieldNameMatchingCaseSensitive, + + // Produce string concrete values when decoding a CBOR byte string into interface{}. + DefaultByteStringType: reflect.TypeOf(""), + + // Allow CBOR byte strings to be decoded into string destination values. If a byte + // string is enclosed in an "expected later encoding" tag + // (https://www.rfc-editor.org/rfc/rfc8949.html#section-3.4.5.2), then the text + // encoding indicated by that tag (e.g. base64) will be applied to the contents of + // the byte string. + ByteStringToString: cbor.ByteStringToStringAllowedWithExpectedLaterEncoding, + + // Allow CBOR byte strings to match struct fields when appearing as a map key. + FieldNameByteString: cbor.FieldNameByteStringAllowed, + + // When decoding an unrecognized tag to interface{}, return the decoded tag content + // instead of the default, a cbor.Tag representing a (number, content) pair. + UnrecognizedTagToAny: cbor.UnrecognizedTagContentToAny, + + // Decode time tags to interface{} as strings containing RFC 3339 timestamps. + TimeTagToAny: cbor.TimeTagToRFC3339Nano, + + // For parity with JSON, strings can be decoded into time.Time if they are RFC 3339 + // timestamps. + ByteStringToTime: cbor.ByteStringToTimeAllowed, + + // Reject NaN and infinite floating-point values since they don't have a JSON + // representation (RFC 8259 Section 6). + NaN: cbor.NaNDecodeForbidden, + Inf: cbor.InfDecodeForbidden, + + // When unmarshaling a byte string into a []byte, assume that the byte string + // contains base64-encoded bytes, unless explicitly counterindicated by an "expected + // later encoding" tag. This is consistent with the because of unmarshaling a JSON + // text into a []byte. + ByteStringExpectedFormat: cbor.ByteStringExpectedBase64, + + // Reject the arbitrary-precision integer tags because they can't be faithfully + // roundtripped through the allowable Unstructured types. + BignumTag: cbor.BignumTagForbidden, + + // Reject anything other than the simple values true, false, and null. + SimpleValues: simpleValues, + + // Disable default recognition of types implementing encoding.BinaryUnmarshaler, + // which is not recognized for JSON decoding. + BinaryUnmarshaler: cbor.BinaryUnmarshalerNone, + }.DecMode() + if err != nil { + panic(err) + } + return decode +}() + +// DecodeLax is derived from Decode, but does not complain about unknown fields in the input. +var DecodeLax cbor.DecMode = func() cbor.DecMode { + opts := Decode.DecOptions() + opts.ExtraReturnErrors &^= cbor.ExtraDecErrorUnknownField // clear bit + dm, err := opts.DecMode() + if err != nil { + panic(err) + } + return dm +}() diff --git a/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/diagnostic.go b/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/diagnostic.go new file mode 100644 index 0000000000000..61f3f145f55e2 --- /dev/null +++ b/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/diagnostic.go @@ -0,0 +1,36 @@ +/* +Copyright 2024 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package modes + +import ( + "github.com/fxamacker/cbor/v2" +) + +var Diagnostic cbor.DiagMode = func() cbor.DiagMode { + opts := Decode.DecOptions() + diagnostic, err := cbor.DiagOptions{ + ByteStringText: true, + + MaxNestedLevels: opts.MaxNestedLevels, + MaxArrayElements: opts.MaxArrayElements, + MaxMapPairs: opts.MaxMapPairs, + }.DiagMode() + if err != nil { + panic(err) + } + return diagnostic +}() diff --git a/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/encode.go b/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/encode.go new file mode 100644 index 0000000000000..c669313844408 --- /dev/null +++ b/vendor/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/encode.go @@ -0,0 +1,155 @@ +/* +Copyright 2024 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package modes + +import ( + "io" + + "github.com/fxamacker/cbor/v2" +) + +var Encode = EncMode{ + delegate: func() cbor.UserBufferEncMode { + encode, err := cbor.EncOptions{ + // Map keys need to be sorted to have deterministic output, and this is the order + // defined in RFC 8949 4.2.1 "Core Deterministic Encoding Requirements". + Sort: cbor.SortBytewiseLexical, + + // CBOR supports distinct types for IEEE-754 float16, float32, and float64. Store + // floats in the smallest width that preserves value so that equivalent float32 and + // float64 values encode to identical bytes, as they do in a JSON + // encoding. Satisfies one of the "Core Deterministic Encoding Requirements". + ShortestFloat: cbor.ShortestFloat16, + + // Error on attempt to encode NaN and infinite values. This is what the JSON + // serializer does. + NaNConvert: cbor.NaNConvertReject, + InfConvert: cbor.InfConvertReject, + + // Error on attempt to encode math/big.Int values, which can't be faithfully + // roundtripped through Unstructured in general (the dynamic numeric types allowed + // in Unstructured are limited to float64 and int64). + BigIntConvert: cbor.BigIntConvertReject, + + // MarshalJSON for time.Time writes RFC3339 with nanos. + Time: cbor.TimeRFC3339Nano, + + // The decoder must be able to accept RFC3339 strings with or without tag 0 (e.g. by + // the end of time.Time -> JSON -> Unstructured -> CBOR, the CBOR encoder has no + // reliable way of knowing that a particular string originated from serializing a + // time.Time), so producing tag 0 has little use. + TimeTag: cbor.EncTagNone, + + // Indefinite-length items have multiple encodings and aren't being used anyway, so + // disable to avoid an opportunity for nondeterminism. + IndefLength: cbor.IndefLengthForbidden, + + // Preserve distinction between nil and empty for slices and maps. + NilContainers: cbor.NilContainerAsNull, + + // OK to produce tags. + TagsMd: cbor.TagsAllowed, + + // Use the same definition of "empty" as encoding/json. + OmitEmpty: cbor.OmitEmptyGoValue, + + // The CBOR types text string and byte string are structurally equivalent, with the + // semantic difference that a text string whose content is an invalid UTF-8 sequence + // is itself invalid. We reject all invalid text strings at decode time and do not + // validate or sanitize all Go strings at encode time. Encoding Go strings to the + // byte string type is comparable to the existing Protobuf behavior and cheaply + // ensures that the output is valid CBOR. + String: cbor.StringToByteString, + + // Encode struct field names to the byte string type rather than the text string + // type. + FieldName: cbor.FieldNameToByteString, + + // Marshal Go byte arrays to CBOR arrays of integers (as in JSON) instead of byte + // strings. + ByteArray: cbor.ByteArrayToArray, + + // Marshal []byte to CBOR byte string enclosed in tag 22 (expected later base64 + // encoding, https://www.rfc-editor.org/rfc/rfc8949.html#section-3.4.5.2), to + // interoperate with the existing JSON behavior. This indicates to the decoder that, + // when decoding into a string (or unstructured), the resulting value should be the + // base64 encoding of the original bytes. No base64 encoding or decoding needs to be + // performed for []byte-to-CBOR-to-[]byte roundtrips. + ByteSliceLaterFormat: cbor.ByteSliceLaterFormatBase64, + + // Disable default recognition of types implementing encoding.BinaryMarshaler, which + // is not recognized for JSON encoding. + BinaryMarshaler: cbor.BinaryMarshalerNone, + }.UserBufferEncMode() + if err != nil { + panic(err) + } + return encode + }(), +} + +var EncodeNondeterministic = EncMode{ + delegate: func() cbor.UserBufferEncMode { + opts := Encode.options() + opts.Sort = cbor.SortNone // TODO: Use cbor.SortFastShuffle after bump to v2.7.0. + em, err := opts.UserBufferEncMode() + if err != nil { + panic(err) + } + return em + }(), +} + +type EncMode struct { + delegate cbor.UserBufferEncMode +} + +func (em EncMode) options() cbor.EncOptions { + return em.delegate.EncOptions() +} + +func (em EncMode) MarshalTo(v interface{}, w io.Writer) error { + if buf, ok := w.(*buffer); ok { + return em.delegate.MarshalToBuffer(v, &buf.Buffer) + } + + buf := buffers.Get() + defer buffers.Put(buf) + if err := em.delegate.MarshalToBuffer(v, &buf.Buffer); err != nil { + return err + } + + if _, err := io.Copy(w, buf); err != nil { + return err + } + + return nil +} + +func (em EncMode) Marshal(v interface{}) ([]byte, error) { + buf := buffers.Get() + defer buffers.Put(buf) + + if err := em.MarshalTo(v, &buf.Buffer); err != nil { + return nil, err + } + + clone := make([]byte, buf.Len()) + copy(clone, buf.Bytes()) + + return clone, nil +} diff --git a/vendor/k8s.io/apimachinery/pkg/runtime/types.go b/vendor/k8s.io/apimachinery/pkg/runtime/types.go index ce77c7910a90f..1680c149f950c 100644 --- a/vendor/k8s.io/apimachinery/pkg/runtime/types.go +++ b/vendor/k8s.io/apimachinery/pkg/runtime/types.go @@ -46,6 +46,7 @@ const ( ContentTypeJSON string = "application/json" ContentTypeYAML string = "application/yaml" ContentTypeProtobuf string = "application/vnd.kubernetes.protobuf" + ContentTypeCBOR string = "application/cbor" ) // RawExtension is used to hold extensions in external versions. diff --git a/vendor/k8s.io/apimachinery/pkg/util/framer/framer.go b/vendor/k8s.io/apimachinery/pkg/util/framer/framer.go index 9b3c9c8d5ac45..1ab8fd396ed30 100644 --- a/vendor/k8s.io/apimachinery/pkg/util/framer/framer.go +++ b/vendor/k8s.io/apimachinery/pkg/util/framer/framer.go @@ -147,7 +147,6 @@ func (r *jsonFrameReader) Read(data []byte) (int, error) { // RawMessage#Unmarshal appends to data - we reset the slice down to 0 and will either see // data written to data, or be larger than data and a different array. - n := len(data) m := json.RawMessage(data[:0]) if err := r.decoder.Decode(&m); err != nil { return 0, err @@ -156,12 +155,19 @@ func (r *jsonFrameReader) Read(data []byte) (int, error) { // If capacity of data is less than length of the message, decoder will allocate a new slice // and set m to it, which means we need to copy the partial result back into data and preserve // the remaining result for subsequent reads. - if len(m) > n { - //nolint:staticcheck // SA4006,SA4010 underlying array of data is modified here. - data = append(data[0:0], m[:n]...) - r.remaining = m[n:] - return n, io.ErrShortBuffer + if len(m) > cap(data) { + copy(data, m) + r.remaining = m[len(data):] + return len(data), io.ErrShortBuffer } + + if len(m) > len(data) { + // The bytes beyond len(data) were stored in data's underlying array, which we do + // not own after this function returns. + r.remaining = append([]byte(nil), m[len(data):]...) + return len(data), io.ErrShortBuffer + } + return len(m), nil } diff --git a/vendor/k8s.io/apimachinery/pkg/util/intstr/generated.pb.go b/vendor/k8s.io/apimachinery/pkg/util/intstr/generated.pb.go index 8f9ced93fb61f..1f2877399fc1b 100644 --- a/vendor/k8s.io/apimachinery/pkg/util/intstr/generated.pb.go +++ b/vendor/k8s.io/apimachinery/pkg/util/intstr/generated.pb.go @@ -15,7 +15,7 @@ limitations under the License. */ // Code generated by protoc-gen-gogo. DO NOT EDIT. -// source: k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/intstr/generated.proto +// source: k8s.io/apimachinery/pkg/util/intstr/generated.proto package intstr @@ -43,7 +43,7 @@ const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package func (m *IntOrString) Reset() { *m = IntOrString{} } func (*IntOrString) ProtoMessage() {} func (*IntOrString) Descriptor() ([]byte, []int) { - return fileDescriptor_94e046ae3ce6121c, []int{0} + return fileDescriptor_771bacc35a5ec189, []int{0} } func (m *IntOrString) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -73,30 +73,29 @@ func init() { } func init() { - proto.RegisterFile("k8s.io/kubernetes/vendor/k8s.io/apimachinery/pkg/util/intstr/generated.proto", fileDescriptor_94e046ae3ce6121c) + proto.RegisterFile("k8s.io/apimachinery/pkg/util/intstr/generated.proto", fileDescriptor_771bacc35a5ec189) } -var fileDescriptor_94e046ae3ce6121c = []byte{ - // 292 bytes of a gzipped FileDescriptorProto - 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0x90, 0xb1, 0x4a, 0x03, 0x31, - 0x1c, 0xc6, 0x13, 0x5b, 0x8b, 0x9e, 0xe0, 0x50, 0x1c, 0x8a, 0x43, 0x7a, 0x58, 0x90, 0x5b, 0x4c, - 0x56, 0x71, 0xec, 0x56, 0x10, 0x84, 0x56, 0x1c, 0xdc, 0xee, 0xda, 0x98, 0x86, 0x6b, 0x93, 0x90, - 0xfb, 0x9f, 0x70, 0x5b, 0x1f, 0x41, 0x37, 0x47, 0x1f, 0xe7, 0xc6, 0x8e, 0x1d, 0xa4, 0x78, 0xf1, - 0x2d, 0x9c, 0xe4, 0x72, 0x07, 0x3a, 0x3a, 0x25, 0xdf, 0xf7, 0xfd, 0x7e, 0x19, 0x12, 0xdc, 0xa6, - 0xd7, 0x19, 0x95, 0x9a, 0xa5, 0x79, 0xc2, 0xad, 0xe2, 0xc0, 0x33, 0xf6, 0xcc, 0xd5, 0x42, 0x5b, - 0xd6, 0x0e, 0xb1, 0x91, 0xeb, 0x78, 0xbe, 0x94, 0x8a, 0xdb, 0x82, 0x99, 0x54, 0xb0, 0x1c, 0xe4, - 0x8a, 0x49, 0x05, 0x19, 0x58, 0x26, 0xb8, 0xe2, 0x36, 0x06, 0xbe, 0xa0, 0xc6, 0x6a, 0xd0, 0xfd, - 0x51, 0x23, 0xd1, 0xbf, 0x12, 0x35, 0xa9, 0xa0, 0xb5, 0x44, 0x1b, 0xe9, 0xfc, 0x4a, 0x48, 0x58, - 0xe6, 0x09, 0x9d, 0xeb, 0x35, 0x13, 0x5a, 0x68, 0xe6, 0xdd, 0x24, 0x7f, 0xf2, 0xc9, 0x07, 0x7f, - 0x6b, 0xde, 0xbc, 0x78, 0xc5, 0xc1, 0xc9, 0x44, 0xc1, 0x9d, 0x9d, 0x81, 0x95, 0x4a, 0xf4, 0xa3, - 0xa0, 0x0b, 0x85, 0xe1, 0x03, 0x1c, 0xe2, 0xa8, 0x33, 0x3e, 0x2b, 0xf7, 0x43, 0xe4, 0xf6, 0xc3, - 0xee, 0x7d, 0x61, 0xf8, 0x77, 0x7b, 0x4e, 0x3d, 0xd1, 0xbf, 0x0c, 0x7a, 0x52, 0xc1, 0x43, 0xbc, - 0x1a, 0x1c, 0x84, 0x38, 0x3a, 0x1c, 0x9f, 0xb6, 0x6c, 0x6f, 0xe2, 0xdb, 0x69, 0xbb, 0xd6, 0x5c, - 0x06, 0xb6, 0xe6, 0x3a, 0x21, 0x8e, 0x8e, 0x7f, 0xb9, 0x99, 0x6f, 0xa7, 0xed, 0x7a, 0x73, 0xf4, - 0xf6, 0x3e, 0x44, 0x9b, 0x8f, 0x10, 0x8d, 0x27, 0x65, 0x45, 0xd0, 0xb6, 0x22, 0x68, 0x57, 0x11, - 0xb4, 0x71, 0x04, 0x97, 0x8e, 0xe0, 0xad, 0x23, 0x78, 0xe7, 0x08, 0xfe, 0x74, 0x04, 0xbf, 0x7c, - 0x11, 0xf4, 0x38, 0xfa, 0xc7, 0x17, 0xfe, 0x04, 0x00, 0x00, 0xff, 0xff, 0xdc, 0xc4, 0xf0, 0xa0, - 0x81, 0x01, 0x00, 0x00, +var fileDescriptor_771bacc35a5ec189 = []byte{ + // 277 bytes of a gzipped FileDescriptorProto + 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x32, 0xce, 0xb6, 0x28, 0xd6, + 0xcb, 0xcc, 0xd7, 0x4f, 0x2c, 0xc8, 0xcc, 0x4d, 0x4c, 0xce, 0xc8, 0xcc, 0x4b, 0x2d, 0xaa, 0xd4, + 0x2f, 0xc8, 0x4e, 0xd7, 0x2f, 0x2d, 0xc9, 0xcc, 0xd1, 0xcf, 0xcc, 0x2b, 0x29, 0x2e, 0x29, 0xd2, + 0x4f, 0x4f, 0xcd, 0x4b, 0x2d, 0x4a, 0x2c, 0x49, 0x4d, 0xd1, 0x2b, 0x28, 0xca, 0x2f, 0xc9, 0x17, + 0x52, 0x86, 0x68, 0xd2, 0x43, 0xd6, 0xa4, 0x57, 0x90, 0x9d, 0xae, 0x07, 0xd2, 0xa4, 0x07, 0xd1, + 0x24, 0xa5, 0x9b, 0x9e, 0x59, 0x92, 0x51, 0x9a, 0xa4, 0x97, 0x9c, 0x9f, 0xab, 0x9f, 0x9e, 0x9f, + 0x9e, 0xaf, 0x0f, 0xd6, 0x9b, 0x54, 0x9a, 0x06, 0xe6, 0x81, 0x39, 0x60, 0x16, 0xc4, 0x4c, 0xa5, + 0x89, 0x8c, 0x5c, 0xdc, 0x9e, 0x79, 0x25, 0xfe, 0x45, 0xc1, 0x25, 0x45, 0x99, 0x79, 0xe9, 0x42, + 0x1a, 0x5c, 0x2c, 0x25, 0x95, 0x05, 0xa9, 0x12, 0x8c, 0x0a, 0x8c, 0x1a, 0xcc, 0x4e, 0x22, 0x27, + 0xee, 0xc9, 0x33, 0x3c, 0xba, 0x27, 0xcf, 0x12, 0x52, 0x59, 0x90, 0xfa, 0x0b, 0x4a, 0x07, 0x81, + 0x55, 0x08, 0xa9, 0x71, 0xb1, 0x65, 0xe6, 0x95, 0x84, 0x25, 0xe6, 0x48, 0x30, 0x29, 0x30, 0x6a, + 0xb0, 0x3a, 0xf1, 0x41, 0xd5, 0xb2, 0x79, 0x82, 0x45, 0x83, 0xa0, 0xb2, 0x20, 0x75, 0xc5, 0x25, + 0x45, 0x20, 0x75, 0xcc, 0x0a, 0x8c, 0x1a, 0x9c, 0x08, 0x75, 0xc1, 0x60, 0xd1, 0x20, 0xa8, 0xac, + 0x15, 0xc7, 0x8c, 0x05, 0xf2, 0x0c, 0x0d, 0x77, 0x14, 0x18, 0x9c, 0x3c, 0x4f, 0x3c, 0x94, 0x63, + 0xb8, 0xf0, 0x50, 0x8e, 0xe1, 0xc6, 0x43, 0x39, 0x86, 0x86, 0x47, 0x72, 0x8c, 0x27, 0x1e, 0xc9, + 0x31, 0x5e, 0x78, 0x24, 0xc7, 0x78, 0xe3, 0x91, 0x1c, 0xe3, 0x83, 0x47, 0x72, 0x8c, 0x13, 0x1e, + 0xcb, 0x31, 0x44, 0x29, 0x13, 0x11, 0x84, 0x80, 0x00, 0x00, 0x00, 0xff, 0xff, 0x63, 0xa1, 0x0b, + 0x1e, 0x68, 0x01, 0x00, 0x00, } func (m *IntOrString) Marshal() (dAtA []byte, err error) { diff --git a/vendor/k8s.io/apimachinery/pkg/util/intstr/intstr.go b/vendor/k8s.io/apimachinery/pkg/util/intstr/intstr.go index f358c794d1029..5fd2e16c842f6 100644 --- a/vendor/k8s.io/apimachinery/pkg/util/intstr/intstr.go +++ b/vendor/k8s.io/apimachinery/pkg/util/intstr/intstr.go @@ -25,6 +25,7 @@ import ( "strconv" "strings" + cbor "k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct" "k8s.io/klog/v2" ) @@ -92,6 +93,20 @@ func (intstr *IntOrString) UnmarshalJSON(value []byte) error { return json.Unmarshal(value, &intstr.IntVal) } +func (intstr *IntOrString) UnmarshalCBOR(value []byte) error { + if err := cbor.Unmarshal(value, &intstr.StrVal); err == nil { + intstr.Type = String + return nil + } + + if err := cbor.Unmarshal(value, &intstr.IntVal); err != nil { + return err + } + + intstr.Type = Int + return nil +} + // String returns the string value, or the Itoa of the int value. func (intstr *IntOrString) String() string { if intstr == nil { @@ -126,6 +141,17 @@ func (intstr IntOrString) MarshalJSON() ([]byte, error) { } } +func (intstr IntOrString) MarshalCBOR() ([]byte, error) { + switch intstr.Type { + case Int: + return cbor.Marshal(intstr.IntVal) + case String: + return cbor.Marshal(intstr.StrVal) + default: + return nil, fmt.Errorf("impossible IntOrString.Type") + } +} + // OpenAPISchemaType is used by the kube-openapi generator when constructing // the OpenAPI spec of this type. // diff --git a/vendor/k8s.io/apimachinery/pkg/util/managedfields/node.yaml b/vendor/k8s.io/apimachinery/pkg/util/managedfields/node.yaml index 66e849f23fb9a..a7f2d54fdf70b 100644 --- a/vendor/k8s.io/apimachinery/pkg/util/managedfields/node.yaml +++ b/vendor/k8s.io/apimachinery/pkg/util/managedfields/node.yaml @@ -120,7 +120,7 @@ status: type: PIDPressure - lastHeartbeatTime: "2019-09-20T19:32:50Z" lastTransitionTime: "2019-07-09T16:17:49Z" - message: kubelet is posting ready status. AppArmor enabled + message: kubelet is posting ready status reason: KubeletReady status: "True" type: Ready diff --git a/vendor/k8s.io/apimachinery/pkg/util/runtime/runtime.go b/vendor/k8s.io/apimachinery/pkg/util/runtime/runtime.go index 3674914f70189..4fe0c5eb250f5 100644 --- a/vendor/k8s.io/apimachinery/pkg/util/runtime/runtime.go +++ b/vendor/k8s.io/apimachinery/pkg/util/runtime/runtime.go @@ -17,6 +17,7 @@ limitations under the License. package runtime import ( + "context" "fmt" "net/http" "runtime" @@ -35,7 +36,7 @@ var ( ) // PanicHandlers is a list of functions which will be invoked when a panic happens. -var PanicHandlers = []func(interface{}){logPanic} +var PanicHandlers = []func(context.Context, interface{}){logPanic} // HandleCrash simply catches a crash and logs an error. Meant to be called via // defer. Additional context-specific handlers can be provided, and will be @@ -43,23 +44,54 @@ var PanicHandlers = []func(interface{}){logPanic} // handlers and logging the panic message. // // E.g., you can provide one or more additional handlers for something like shutting down go routines gracefully. +// +// TODO(pohly): logcheck:context // HandleCrashWithContext should be used instead of HandleCrash in code which supports contextual logging. func HandleCrash(additionalHandlers ...func(interface{})) { if r := recover(); r != nil { - for _, fn := range PanicHandlers { - fn(r) - } - for _, fn := range additionalHandlers { - fn(r) - } - if ReallyCrash { - // Actually proceed to panic. - panic(r) + additionalHandlersWithContext := make([]func(context.Context, interface{}), len(additionalHandlers)) + for i, handler := range additionalHandlers { + handler := handler // capture loop variable + additionalHandlersWithContext[i] = func(_ context.Context, r interface{}) { + handler(r) + } } + + handleCrash(context.Background(), r, additionalHandlersWithContext...) + } +} + +// HandleCrashWithContext simply catches a crash and logs an error. Meant to be called via +// defer. Additional context-specific handlers can be provided, and will be +// called in case of panic. HandleCrash actually crashes, after calling the +// handlers and logging the panic message. +// +// E.g., you can provide one or more additional handlers for something like shutting down go routines gracefully. +// +// The context is used to determine how to log. +func HandleCrashWithContext(ctx context.Context, additionalHandlers ...func(context.Context, interface{})) { + if r := recover(); r != nil { + handleCrash(ctx, r, additionalHandlers...) + } +} + +// handleCrash is the common implementation of HandleCrash and HandleCrash. +// Having those call a common implementation ensures that the stack depth +// is the same regardless through which path the handlers get invoked. +func handleCrash(ctx context.Context, r any, additionalHandlers ...func(context.Context, interface{})) { + for _, fn := range PanicHandlers { + fn(ctx, r) + } + for _, fn := range additionalHandlers { + fn(ctx, r) + } + if ReallyCrash { + // Actually proceed to panic. + panic(r) } } // logPanic logs the caller tree when a panic occurs (except in the special case of http.ErrAbortHandler). -func logPanic(r interface{}) { +func logPanic(ctx context.Context, r interface{}) { if r == http.ErrAbortHandler { // honor the http.ErrAbortHandler sentinel panic value: // ErrAbortHandler is a sentinel panic value to abort a handler. @@ -73,10 +105,20 @@ func logPanic(r interface{}) { const size = 64 << 10 stacktrace := make([]byte, size) stacktrace = stacktrace[:runtime.Stack(stacktrace, false)] + + // We don't really know how many call frames to skip because the Go + // panic handler is between us and the code where the panic occurred. + // If it's one function (as in Go 1.21), then skipping four levels + // gets us to the function which called the `defer HandleCrashWithontext(...)`. + logger := klog.FromContext(ctx).WithCallDepth(4) + + // For backwards compatibility, conversion to string + // is handled here instead of defering to the logging + // backend. if _, ok := r.(string); ok { - klog.Errorf("Observed a panic: %s\n%s", r, stacktrace) + logger.Error(nil, "Observed a panic", "panic", r, "stacktrace", string(stacktrace)) } else { - klog.Errorf("Observed a panic: %#v (%v)\n%s", r, r, stacktrace) + logger.Error(nil, "Observed a panic", "panic", fmt.Sprintf("%v", r), "panicGoValue", fmt.Sprintf("%#v", r), "stacktrace", string(stacktrace)) } } @@ -84,35 +126,76 @@ func logPanic(r interface{}) { // error occurs. // TODO(lavalamp): for testability, this and the below HandleError function // should be packaged up into a testable and reusable object. -var ErrorHandlers = []func(error){ +var ErrorHandlers = []ErrorHandler{ logError, - (&rudimentaryErrorBackoff{ - lastErrorTime: time.Now(), - // 1ms was the number folks were able to stomach as a global rate limit. - // If you need to log errors more than 1000 times a second you - // should probably consider fixing your code instead. :) - minPeriod: time.Millisecond, - }).OnError, + func(_ context.Context, _ error, _ string, _ ...interface{}) { + (&rudimentaryErrorBackoff{ + lastErrorTime: time.Now(), + // 1ms was the number folks were able to stomach as a global rate limit. + // If you need to log errors more than 1000 times a second you + // should probably consider fixing your code instead. :) + minPeriod: time.Millisecond, + }).OnError() + }, } +type ErrorHandler func(ctx context.Context, err error, msg string, keysAndValues ...interface{}) + // HandlerError is a method to invoke when a non-user facing piece of code cannot // return an error and needs to indicate it has been ignored. Invoking this method // is preferable to logging the error - the default behavior is to log but the // errors may be sent to a remote server for analysis. +// +// TODO(pohly): logcheck:context // HandleErrorWithContext should be used instead of HandleError in code which supports contextual logging. func HandleError(err error) { // this is sometimes called with a nil error. We probably shouldn't fail and should do nothing instead if err == nil { return } + handleError(context.Background(), err, "Unhandled Error") +} + +// HandlerErrorWithContext is a method to invoke when a non-user facing piece of code cannot +// return an error and needs to indicate it has been ignored. Invoking this method +// is preferable to logging the error - the default behavior is to log but the +// errors may be sent to a remote server for analysis. The context is used to +// determine how to log the error. +// +// If contextual logging is enabled, the default log output is equivalent to +// +// logr.FromContext(ctx).WithName("UnhandledError").Error(err, msg, keysAndValues...) +// +// Without contextual logging, it is equivalent to: +// +// klog.ErrorS(err, msg, keysAndValues...) +// +// In contrast to HandleError, passing nil for the error is still going to +// trigger a log entry. Don't construct a new error or wrap an error +// with fmt.Errorf. Instead, add additional information via the mssage +// and key/value pairs. +// +// This variant should be used instead of HandleError because it supports +// structured, contextual logging. +func HandleErrorWithContext(ctx context.Context, err error, msg string, keysAndValues ...interface{}) { + handleError(ctx, err, msg, keysAndValues...) +} + +// handleError is the common implementation of HandleError and HandleErrorWithContext. +// Using this common implementation ensures that the stack depth +// is the same regardless through which path the handlers get invoked. +func handleError(ctx context.Context, err error, msg string, keysAndValues ...interface{}) { for _, fn := range ErrorHandlers { - fn(err) + fn(ctx, err, msg, keysAndValues...) } } -// logError prints an error with the call stack of the location it was reported -func logError(err error) { - klog.ErrorDepth(2, err) +// logError prints an error with the call stack of the location it was reported. +// It expects to be called as -> HandleError[WithContext] -> handleError -> logError. +func logError(ctx context.Context, err error, msg string, keysAndValues ...interface{}) { + logger := klog.FromContext(ctx).WithCallDepth(3) + logger = klog.LoggerWithName(logger, "UnhandledError") + logger.Error(err, msg, keysAndValues...) //nolint:logcheck // logcheck complains about unknown key/value pairs. } type rudimentaryErrorBackoff struct { @@ -125,7 +208,7 @@ type rudimentaryErrorBackoff struct { // OnError will block if it is called more often than the embedded period time. // This will prevent overly tight hot error loops. -func (r *rudimentaryErrorBackoff) OnError(error) { +func (r *rudimentaryErrorBackoff) OnError() { now := time.Now() // start the timer before acquiring the lock r.lastErrorTimeLock.Lock() d := now.Sub(r.lastErrorTime) diff --git a/vendor/k8s.io/apimachinery/pkg/util/sets/doc.go b/vendor/k8s.io/apimachinery/pkg/util/sets/doc.go index 194883390cf2c..fd281bdb88c13 100644 --- a/vendor/k8s.io/apimachinery/pkg/util/sets/doc.go +++ b/vendor/k8s.io/apimachinery/pkg/util/sets/doc.go @@ -16,4 +16,4 @@ limitations under the License. // Package sets has generic set and specified sets. Generic set will // replace specified ones over time. And specific ones are deprecated. -package sets +package sets // import "k8s.io/apimachinery/pkg/util/sets" diff --git a/vendor/k8s.io/apimachinery/pkg/util/sets/ordered.go b/vendor/k8s.io/apimachinery/pkg/util/sets/ordered.go deleted file mode 100644 index 443dac62eb354..0000000000000 --- a/vendor/k8s.io/apimachinery/pkg/util/sets/ordered.go +++ /dev/null @@ -1,53 +0,0 @@ -/* -Copyright 2022 The Kubernetes Authors. - -Licensed under the Apache License, Version 2.0 (the "License"); -you may not use this file except in compliance with the License. -You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, software -distributed under the License is distributed on an "AS IS" BASIS, -WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -See the License for the specific language governing permissions and -limitations under the License. -*/ - -package sets - -// ordered is a constraint that permits any ordered type: any type -// that supports the operators < <= >= >. -// If future releases of Go add new ordered types, -// this constraint will be modified to include them. -type ordered interface { - integer | float | ~string -} - -// integer is a constraint that permits any integer type. -// If future releases of Go add new predeclared integer types, -// this constraint will be modified to include them. -type integer interface { - signed | unsigned -} - -// float is a constraint that permits any floating-point type. -// If future releases of Go add new predeclared floating-point types, -// this constraint will be modified to include them. -type float interface { - ~float32 | ~float64 -} - -// signed is a constraint that permits any signed integer type. -// If future releases of Go add new predeclared signed integer types, -// this constraint will be modified to include them. -type signed interface { - ~int | ~int8 | ~int16 | ~int32 | ~int64 -} - -// unsigned is a constraint that permits any unsigned integer type. -// If future releases of Go add new predeclared unsigned integer types, -// this constraint will be modified to include them. -type unsigned interface { - ~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr -} diff --git a/vendor/k8s.io/apimachinery/pkg/util/sets/set.go b/vendor/k8s.io/apimachinery/pkg/util/sets/set.go index d50526f4262cf..cd961c8c5939c 100644 --- a/vendor/k8s.io/apimachinery/pkg/util/sets/set.go +++ b/vendor/k8s.io/apimachinery/pkg/util/sets/set.go @@ -17,6 +17,7 @@ limitations under the License. package sets import ( + "cmp" "sort" ) @@ -37,7 +38,7 @@ func New[T comparable](items ...T) Set[T] { // KeySet creates a Set from a keys of a map[comparable](? extends interface{}). // If the value passed in is not actually a map, this will panic. func KeySet[T comparable, V any](theMap map[T]V) Set[T] { - ret := Set[T]{} + ret := make(Set[T], len(theMap)) for keyValue := range theMap { ret.Insert(keyValue) } @@ -67,14 +68,8 @@ func (s Set[T]) Delete(items ...T) Set[T] { // Clear empties the set. // It is preferable to replace the set with a newly constructed set, // but not all callers can do that (when there are other references to the map). -// In some cases the set *won't* be fully cleared, e.g. a Set[float32] containing NaN -// can't be cleared because NaN can't be removed. -// For sets containing items of a type that is reflexive for ==, -// this is optimized to a single call to runtime.mapclear(). func (s Set[T]) Clear() Set[T] { - for key := range s { - delete(s, key) - } + clear(s) return s } @@ -193,7 +188,7 @@ func (s1 Set[T]) Equal(s2 Set[T]) bool { return len(s1) == len(s2) && s1.IsSuperset(s2) } -type sortableSliceOfGeneric[T ordered] []T +type sortableSliceOfGeneric[T cmp.Ordered] []T func (g sortableSliceOfGeneric[T]) Len() int { return len(g) } func (g sortableSliceOfGeneric[T]) Less(i, j int) bool { return less[T](g[i], g[j]) } @@ -203,7 +198,7 @@ func (g sortableSliceOfGeneric[T]) Swap(i, j int) { g[i], g[j] = g[j], g[i] // // This is a separate function and not a method because not all types supported // by Generic are ordered and only those can be sorted. -func List[T ordered](s Set[T]) []T { +func List[T cmp.Ordered](s Set[T]) []T { res := make(sortableSliceOfGeneric[T], 0, len(s)) for key := range s { res = append(res, key) @@ -236,6 +231,6 @@ func (s Set[T]) Len() int { return len(s) } -func less[T ordered](lhs, rhs T) bool { +func less[T cmp.Ordered](lhs, rhs T) bool { return lhs < rhs } diff --git a/vendor/k8s.io/apimachinery/pkg/util/validation/OWNERS b/vendor/k8s.io/apimachinery/pkg/util/validation/OWNERS new file mode 100644 index 0000000000000..40237324761f0 --- /dev/null +++ b/vendor/k8s.io/apimachinery/pkg/util/validation/OWNERS @@ -0,0 +1,11 @@ +# See the OWNERS docs at https://go.k8s.io/owners + +# Disable inheritance as this is an api owners file +options: + no_parent_owners: true +approvers: + - api-approvers +reviewers: + - api-reviewers +labels: + - kind/api-change diff --git a/vendor/k8s.io/apimachinery/pkg/util/validation/validation.go b/vendor/k8s.io/apimachinery/pkg/util/validation/validation.go index 0b8a6cb354ab7..b32644902b02f 100644 --- a/vendor/k8s.io/apimachinery/pkg/util/validation/validation.go +++ b/vendor/k8s.io/apimachinery/pkg/util/validation/validation.go @@ -19,10 +19,9 @@ package validation import ( "fmt" "math" - "net" "regexp" - "strconv" "strings" + "unicode" "k8s.io/apimachinery/pkg/util/validation/field" netutils "k8s.io/utils/net" @@ -352,11 +351,12 @@ func IsValidPortName(port string) []string { } // IsValidIP tests that the argument is a valid IP address. -func IsValidIP(value string) []string { +func IsValidIP(fldPath *field.Path, value string) field.ErrorList { + var allErrors field.ErrorList if netutils.ParseIPSloppy(value) == nil { - return []string{"must be a valid IP address, (e.g. 10.9.8.7 or 2001:db8::ffff)"} + allErrors = append(allErrors, field.Invalid(fldPath, value, "must be a valid IP address, (e.g. 10.9.8.7 or 2001:db8::ffff)")) } - return nil + return allErrors } // IsValidIPv4Address tests that the argument is a valid IPv4 address. @@ -379,6 +379,16 @@ func IsValidIPv6Address(fldPath *field.Path, value string) field.ErrorList { return allErrors } +// IsValidCIDR tests that the argument is a valid CIDR value. +func IsValidCIDR(fldPath *field.Path, value string) field.ErrorList { + var allErrors field.ErrorList + _, _, err := netutils.ParseCIDRSloppy(value) + if err != nil { + allErrors = append(allErrors, field.Invalid(fldPath, value, "must be a valid CIDR value, (e.g. 10.9.8.0/24 or 2001:db8::/64)")) + } + return allErrors +} + const percentFmt string = "[0-9]+%" const percentErrMsg string = "a valid percent string must be a numeric string followed by an ending '%'" @@ -409,6 +419,9 @@ func IsHTTPHeaderName(value string) []string { const envVarNameFmt = "[-._a-zA-Z][-._a-zA-Z0-9]*" const envVarNameFmtErrMsg string = "a valid environment variable name must consist of alphabetic characters, digits, '_', '-', or '.', and must not start with a digit" +// TODO(hirazawaui): Rename this when the RelaxedEnvironmentVariableValidation gate is removed. +const relaxedEnvVarNameFmtErrMsg string = "a valid environment variable name must consist only of printable ASCII characters other than '='" + var envVarNameRegexp = regexp.MustCompile("^" + envVarNameFmt + "$") // IsEnvVarName tests if a string is a valid environment variable name. @@ -422,6 +435,24 @@ func IsEnvVarName(value string) []string { return errs } +// IsRelaxedEnvVarName tests if a string is a valid environment variable name. +func IsRelaxedEnvVarName(value string) []string { + var errs []string + + if len(value) == 0 { + errs = append(errs, "environment variable name "+EmptyError()) + } + + for _, r := range value { + if r > unicode.MaxASCII || !unicode.IsPrint(r) || r == '=' { + errs = append(errs, relaxedEnvVarNameFmtErrMsg) + break + } + } + + return errs +} + const configMapKeyFmt = `[-._a-zA-Z0-9]+` const configMapKeyErrMsg string = "a valid config key must consist of alphanumeric characters, '-', '_' or '.'" @@ -493,18 +524,3 @@ func hasChDirPrefix(value string) []string { } return errs } - -// IsValidSocketAddr checks that string represents a valid socket address -// as defined in RFC 789. (e.g 0.0.0.0:10254 or [::]:10254)) -func IsValidSocketAddr(value string) []string { - var errs []string - ip, port, err := net.SplitHostPort(value) - if err != nil { - errs = append(errs, "must be a valid socket address format, (e.g. 0.0.0.0:10254 or [::]:10254)") - return errs - } - portInt, _ := strconv.Atoi(port) - errs = append(errs, IsValidPortNum(portInt)...) - errs = append(errs, IsValidIP(ip)...) - return errs -} diff --git a/vendor/k8s.io/apimachinery/pkg/util/version/version.go b/vendor/k8s.io/apimachinery/pkg/util/version/version.go index 2292ba13765f4..b7812ff2d150e 100644 --- a/vendor/k8s.io/apimachinery/pkg/util/version/version.go +++ b/vendor/k8s.io/apimachinery/pkg/util/version/version.go @@ -23,6 +23,8 @@ import ( "regexp" "strconv" "strings" + + apimachineryversion "k8s.io/apimachinery/pkg/version" ) // Version is an opaque representation of a version number @@ -31,6 +33,7 @@ type Version struct { semver bool preRelease string buildMetadata string + info apimachineryversion.Info } var ( @@ -145,6 +148,43 @@ func MustParseGeneric(str string) *Version { return v } +// Parse tries to do ParseSemantic first to keep more information. +// If ParseSemantic fails, it would just do ParseGeneric. +func Parse(str string) (*Version, error) { + v, err := parse(str, true) + if err != nil { + return parse(str, false) + } + return v, err +} + +// MustParse is like Parse except that it panics on error +func MustParse(str string) *Version { + v, err := Parse(str) + if err != nil { + panic(err) + } + return v +} + +// ParseMajorMinor parses a "generic" version string and returns a version with the major and minor version. +func ParseMajorMinor(str string) (*Version, error) { + v, err := ParseGeneric(str) + if err != nil { + return nil, err + } + return MajorMinor(v.Major(), v.Minor()), nil +} + +// MustParseMajorMinor is like ParseMajorMinor except that it panics on error +func MustParseMajorMinor(str string) *Version { + v, err := ParseMajorMinor(str) + if err != nil { + panic(err) + } + return v +} + // ParseSemantic parses a version string that exactly obeys the syntax and semantics of // the "Semantic Versioning" specification (http://semver.org/) (although it ignores // leading and trailing whitespace, and allows the version to be preceded by "v"). For @@ -215,6 +255,32 @@ func (v *Version) WithMinor(minor uint) *Version { return &result } +// SubtractMinor returns the version with offset from the original minor, with the same major and no patch. +// If -offset >= current minor, the minor would be 0. +func (v *Version) OffsetMinor(offset int) *Version { + var minor uint + if offset >= 0 { + minor = v.Minor() + uint(offset) + } else { + diff := uint(-offset) + if diff < v.Minor() { + minor = v.Minor() - diff + } + } + return MajorMinor(v.Major(), minor) +} + +// SubtractMinor returns the version diff minor versions back, with the same major and no patch. +// If diff >= current minor, the minor would be 0. +func (v *Version) SubtractMinor(diff uint) *Version { + return v.OffsetMinor(-int(diff)) +} + +// AddMinor returns the version diff minor versions forward, with the same major and no patch. +func (v *Version) AddMinor(diff uint) *Version { + return v.OffsetMinor(int(diff)) +} + // WithPatch returns copy of the version object with requested patch number func (v *Version) WithPatch(patch uint) *Version { result := *v @@ -224,6 +290,9 @@ func (v *Version) WithPatch(patch uint) *Version { // WithPreRelease returns copy of the version object with requested prerelease func (v *Version) WithPreRelease(preRelease string) *Version { + if len(preRelease) == 0 { + return v + } result := *v result.components = []uint{v.Major(), v.Minor(), v.Patch()} result.preRelease = preRelease @@ -345,6 +414,17 @@ func onlyZeros(array []uint) bool { return true } +// EqualTo tests if a version is equal to a given version. +func (v *Version) EqualTo(other *Version) bool { + if v == nil { + return other == nil + } + if other == nil { + return false + } + return v.compareInternal(other) == 0 +} + // AtLeast tests if a version is at least equal to a given minimum version. If both // Versions are Semantic Versions, this will use the Semantic Version comparison // algorithm. Otherwise, it will compare only the numeric components, with non-present @@ -360,6 +440,11 @@ func (v *Version) LessThan(other *Version) bool { return v.compareInternal(other) == -1 } +// GreaterThan tests if a version is greater than a given version. +func (v *Version) GreaterThan(other *Version) bool { + return v.compareInternal(other) == 1 +} + // Compare compares v against a version string (which will be parsed as either Semantic // or non-Semantic depending on v). On success it returns -1 if v is less than other, 1 if // it is greater than other, or 0 if they are equal. @@ -370,3 +455,30 @@ func (v *Version) Compare(other string) (int, error) { } return v.compareInternal(ov), nil } + +// WithInfo returns copy of the version object with requested info +func (v *Version) WithInfo(info apimachineryversion.Info) *Version { + result := *v + result.info = info + return &result +} + +func (v *Version) Info() *apimachineryversion.Info { + if v == nil { + return nil + } + // in case info is empty, or the major and minor in info is different from the actual major and minor + v.info.Major = itoa(v.Major()) + v.info.Minor = itoa(v.Minor()) + if v.info.GitVersion == "" { + v.info.GitVersion = v.String() + } + return &v.info +} + +func itoa(i uint) string { + if i == 0 { + return "" + } + return strconv.Itoa(int(i)) +} diff --git a/vendor/k8s.io/apimachinery/pkg/watch/watch.go b/vendor/k8s.io/apimachinery/pkg/watch/watch.go index b6c7bbfa8faf7..ce37fd8c18342 100644 --- a/vendor/k8s.io/apimachinery/pkg/watch/watch.go +++ b/vendor/k8s.io/apimachinery/pkg/watch/watch.go @@ -27,13 +27,25 @@ import ( // Interface can be implemented by anything that knows how to watch and report changes. type Interface interface { - // Stop stops watching. Will close the channel returned by ResultChan(). Releases - // any resources used by the watch. + // Stop tells the producer that the consumer is done watching, so the + // producer should stop sending events and close the result channel. The + // consumer should keep watching for events until the result channel is + // closed. + // + // Because some implementations may create channels when constructed, Stop + // must always be called, even if the consumer has not yet called + // ResultChan(). + // + // Only the consumer should call Stop(), not the producer. If the producer + // errors and needs to stop the watch prematurely, it should instead send + // an error event and close the result channel. Stop() - // ResultChan returns a chan which will receive all the events. If an error occurs - // or Stop() is called, the implementation will close this channel and - // release any resources used by the watch. + // ResultChan returns a channel which will receive events from the event + // producer. If an error occurs or Stop() is called, the producer must + // close this channel and release any resources used by the watch. + // Closing the result channel tells the consumer that no more events will be + // sent. ResultChan() <-chan Event } @@ -322,3 +334,21 @@ func (pw *ProxyWatcher) ResultChan() <-chan Event { func (pw *ProxyWatcher) StopChan() <-chan struct{} { return pw.stopCh } + +// MockWatcher implements watch.Interface with mockable functions. +type MockWatcher struct { + StopFunc func() + ResultChanFunc func() <-chan Event +} + +var _ Interface = &MockWatcher{} + +// Stop calls StopFunc +func (mw MockWatcher) Stop() { + mw.StopFunc() +} + +// ResultChan calls ResultChanFunc +func (mw MockWatcher) ResultChan() <-chan Event { + return mw.ResultChanFunc() +} diff --git a/vendor/modules.txt b/vendor/modules.txt index 216c325c60c67..1ded90e1e68c3 100644 --- a/vendor/modules.txt +++ b/vendor/modules.txt @@ -523,9 +523,6 @@ github.com/c2h5oh/datasize ## explicit; go 1.18 github.com/census-instrumentation/opencensus-proto/gen-go/resource/v1 github.com/census-instrumentation/opencensus-proto/gen-go/trace/v1 -# github.com/cespare/xxhash v1.1.0 -## explicit -github.com/cespare/xxhash # github.com/cespare/xxhash/v2 v2.3.0 ## explicit; go 1.11 github.com/cespare/xxhash/v2 @@ -762,6 +759,9 @@ github.com/fsouza/fake-gcs-server/fakestorage github.com/fsouza/fake-gcs-server/internal/backend github.com/fsouza/fake-gcs-server/internal/checksum github.com/fsouza/fake-gcs-server/internal/notification +# github.com/fxamacker/cbor/v2 v2.7.0 +## explicit; go 1.17 +github.com/fxamacker/cbor/v2 # github.com/gabriel-vasile/mimetype v1.4.3 ## explicit; go 1.20 github.com/gabriel-vasile/mimetype @@ -1662,6 +1662,9 @@ github.com/willf/bitset # github.com/willf/bloom v2.0.3+incompatible ## explicit github.com/willf/bloom +# github.com/x448/float16 v0.8.4 +## explicit; go 1.11 +github.com/x448/float16 # github.com/xdg-go/pbkdf2 v1.0.0 ## explicit; go 1.9 github.com/xdg-go/pbkdf2 @@ -2260,8 +2263,8 @@ k8s.io/api/scheduling/v1beta1 k8s.io/api/storage/v1 k8s.io/api/storage/v1alpha1 k8s.io/api/storage/v1beta1 -# k8s.io/apimachinery v0.29.3 -## explicit; go 1.21 +# k8s.io/apimachinery v0.31.2 +## explicit; go 1.22.0 k8s.io/apimachinery/pkg/api/equality k8s.io/apimachinery/pkg/api/errors k8s.io/apimachinery/pkg/api/meta @@ -2279,6 +2282,8 @@ k8s.io/apimachinery/pkg/labels k8s.io/apimachinery/pkg/runtime k8s.io/apimachinery/pkg/runtime/schema k8s.io/apimachinery/pkg/runtime/serializer +k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct +k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes k8s.io/apimachinery/pkg/runtime/serializer/json k8s.io/apimachinery/pkg/runtime/serializer/protobuf k8s.io/apimachinery/pkg/runtime/serializer/recognizer @@ -2489,9 +2494,10 @@ sigs.k8s.io/structured-merge-diff/v4/merge sigs.k8s.io/structured-merge-diff/v4/schema sigs.k8s.io/structured-merge-diff/v4/typed sigs.k8s.io/structured-merge-diff/v4/value -# sigs.k8s.io/yaml v1.3.0 +# sigs.k8s.io/yaml v1.4.0 ## explicit; go 1.12 sigs.k8s.io/yaml +sigs.k8s.io/yaml/goyaml.v2 # github.com/Azure/azure-sdk-for-go => github.com/Azure/azure-sdk-for-go v36.2.0+incompatible # github.com/Azure/azure-storage-blob-go => github.com/MasslessParticle/azure-storage-blob-go v0.14.1-0.20240322194317-344980fda573 # github.com/hashicorp/consul => github.com/hashicorp/consul v1.20.1 diff --git a/vendor/sigs.k8s.io/yaml/LICENSE b/vendor/sigs.k8s.io/yaml/LICENSE index 7805d36de7305..093d6d3edf3d5 100644 --- a/vendor/sigs.k8s.io/yaml/LICENSE +++ b/vendor/sigs.k8s.io/yaml/LICENSE @@ -48,3 +48,259 @@ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +# The forked go-yaml.v3 library under this project is covered by two +different licenses (MIT and Apache): + +#### MIT License #### + +The following files were ported to Go from C files of libyaml, and thus +are still covered by their original MIT license, with the additional +copyright staring in 2011 when the project was ported over: + + apic.go emitterc.go parserc.go readerc.go scannerc.go + writerc.go yamlh.go yamlprivateh.go + +Copyright (c) 2006-2010 Kirill Simonov +Copyright (c) 2006-2011 Kirill Simonov + +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. + +### Apache License ### + +All the remaining project files are covered by the Apache license: + +Copyright (c) 2011-2019 Canonical Ltd + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. + +# The forked go-yaml.v2 library under the project is covered by an +Apache license: + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "{}" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright {yyyy} {name of copyright owner} + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/sigs.k8s.io/yaml/OWNERS b/vendor/sigs.k8s.io/yaml/OWNERS index 325b40b0763f0..003a149e151eb 100644 --- a/vendor/sigs.k8s.io/yaml/OWNERS +++ b/vendor/sigs.k8s.io/yaml/OWNERS @@ -2,26 +2,22 @@ approvers: - dims -- lavalamp +- jpbetz - smarterclayton - deads2k - sttts - liggitt -- caesarxuchao reviewers: - dims - thockin -- lavalamp +- jpbetz - smarterclayton - wojtek-t - deads2k - derekwaynecarr -- caesarxuchao - mikedanese - liggitt -- gmarek - sttts -- ncdc - tallclair labels: - sig/api-machinery diff --git a/vendor/sigs.k8s.io/yaml/fields.go b/vendor/sigs.k8s.io/yaml/fields.go index 235b7f2cf6129..0ea28bd03079a 100644 --- a/vendor/sigs.k8s.io/yaml/fields.go +++ b/vendor/sigs.k8s.io/yaml/fields.go @@ -16,53 +16,53 @@ import ( "unicode/utf8" ) -// indirect walks down v allocating pointers as needed, +// indirect walks down 'value' allocating pointers as needed, // until it gets to a non-pointer. // if it encounters an Unmarshaler, indirect stops and returns that. // if decodingNull is true, indirect stops at the last pointer so it can be set to nil. -func indirect(v reflect.Value, decodingNull bool) (json.Unmarshaler, encoding.TextUnmarshaler, reflect.Value) { - // If v is a named type and is addressable, +func indirect(value reflect.Value, decodingNull bool) (json.Unmarshaler, encoding.TextUnmarshaler, reflect.Value) { + // If 'value' is a named type and is addressable, // start with its address, so that if the type has pointer methods, // we find them. - if v.Kind() != reflect.Ptr && v.Type().Name() != "" && v.CanAddr() { - v = v.Addr() + if value.Kind() != reflect.Ptr && value.Type().Name() != "" && value.CanAddr() { + value = value.Addr() } for { // Load value from interface, but only if the result will be // usefully addressable. - if v.Kind() == reflect.Interface && !v.IsNil() { - e := v.Elem() - if e.Kind() == reflect.Ptr && !e.IsNil() && (!decodingNull || e.Elem().Kind() == reflect.Ptr) { - v = e + if value.Kind() == reflect.Interface && !value.IsNil() { + element := value.Elem() + if element.Kind() == reflect.Ptr && !element.IsNil() && (!decodingNull || element.Elem().Kind() == reflect.Ptr) { + value = element continue } } - if v.Kind() != reflect.Ptr { + if value.Kind() != reflect.Ptr { break } - if v.Elem().Kind() != reflect.Ptr && decodingNull && v.CanSet() { + if value.Elem().Kind() != reflect.Ptr && decodingNull && value.CanSet() { break } - if v.IsNil() { - if v.CanSet() { - v.Set(reflect.New(v.Type().Elem())) + if value.IsNil() { + if value.CanSet() { + value.Set(reflect.New(value.Type().Elem())) } else { - v = reflect.New(v.Type().Elem()) + value = reflect.New(value.Type().Elem()) } } - if v.Type().NumMethod() > 0 { - if u, ok := v.Interface().(json.Unmarshaler); ok { + if value.Type().NumMethod() > 0 { + if u, ok := value.Interface().(json.Unmarshaler); ok { return u, nil, reflect.Value{} } - if u, ok := v.Interface().(encoding.TextUnmarshaler); ok { + if u, ok := value.Interface().(encoding.TextUnmarshaler); ok { return nil, u, reflect.Value{} } } - v = v.Elem() + value = value.Elem() } - return nil, nil, v + return nil, nil, value } // A field represents a single field found in a struct. @@ -134,8 +134,8 @@ func typeFields(t reflect.Type) []field { next := []field{{typ: t}} // Count of queued names for current level and the next. - count := map[reflect.Type]int{} - nextCount := map[reflect.Type]int{} + var count map[reflect.Type]int + var nextCount map[reflect.Type]int // Types already visited at an earlier level. visited := map[reflect.Type]bool{} @@ -348,8 +348,9 @@ const ( // 4) simpleLetterEqualFold, no specials, no non-letters. // // The letters S and K are special because they map to 3 runes, not just 2: -// * S maps to s and to U+017F 'ſ' Latin small letter long s -// * k maps to K and to U+212A 'K' Kelvin sign +// - S maps to s and to U+017F 'ſ' Latin small letter long s +// - k maps to K and to U+212A 'K' Kelvin sign +// // See http://play.golang.org/p/tTxjOc0OGo // // The returned function is specialized for matching against s and @@ -420,10 +421,8 @@ func equalFoldRight(s, t []byte) bool { t = t[size:] } - if len(t) > 0 { - return false - } - return true + + return len(t) <= 0 } // asciiEqualFold is a specialization of bytes.EqualFold for use when diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/LICENSE b/vendor/sigs.k8s.io/yaml/goyaml.v2/LICENSE new file mode 100644 index 0000000000000..8dada3edaf50d --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "{}" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright {yyyy} {name of copyright owner} + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/LICENSE.libyaml b/vendor/sigs.k8s.io/yaml/goyaml.v2/LICENSE.libyaml new file mode 100644 index 0000000000000..8da58fbf6f84a --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/LICENSE.libyaml @@ -0,0 +1,31 @@ +The following files were ported to Go from C files of libyaml, and thus +are still covered by their original copyright and license: + + apic.go + emitterc.go + parserc.go + readerc.go + scannerc.go + writerc.go + yamlh.go + yamlprivateh.go + +Copyright (c) 2006 Kirill Simonov + +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/NOTICE b/vendor/sigs.k8s.io/yaml/goyaml.v2/NOTICE new file mode 100644 index 0000000000000..866d74a7ad791 --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/NOTICE @@ -0,0 +1,13 @@ +Copyright 2011-2016 Canonical Ltd. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/OWNERS b/vendor/sigs.k8s.io/yaml/goyaml.v2/OWNERS new file mode 100644 index 0000000000000..73be0a3a9bd05 --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/OWNERS @@ -0,0 +1,24 @@ +# See the OWNERS docs at https://go.k8s.io/owners + +approvers: +- dims +- jpbetz +- smarterclayton +- deads2k +- sttts +- liggitt +- natasha41575 +- knverey +reviewers: +- dims +- thockin +- jpbetz +- smarterclayton +- deads2k +- derekwaynecarr +- mikedanese +- liggitt +- sttts +- tallclair +labels: +- sig/api-machinery diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/README.md b/vendor/sigs.k8s.io/yaml/goyaml.v2/README.md new file mode 100644 index 0000000000000..53f4139dc3100 --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/README.md @@ -0,0 +1,143 @@ +# go-yaml fork + +This package is a fork of the go-yaml library and is intended solely for consumption +by kubernetes projects. In this fork, we plan to support only critical changes required for +kubernetes, such as small bug fixes and regressions. Larger, general-purpose feature requests +should be made in the upstream go-yaml library, and we will reject such changes in this fork +unless we are pulling them from upstream. + +This fork is based on v2.4.0: https://github.com/go-yaml/yaml/releases/tag/v2.4.0 + +# YAML support for the Go language + +Introduction +------------ + +The yaml package enables Go programs to comfortably encode and decode YAML +values. It was developed within [Canonical](https://www.canonical.com) as +part of the [juju](https://juju.ubuntu.com) project, and is based on a +pure Go port of the well-known [libyaml](http://pyyaml.org/wiki/LibYAML) +C library to parse and generate YAML data quickly and reliably. + +Compatibility +------------- + +The yaml package supports most of YAML 1.1 and 1.2, including support for +anchors, tags, map merging, etc. Multi-document unmarshalling is not yet +implemented, and base-60 floats from YAML 1.1 are purposefully not +supported since they're a poor design and are gone in YAML 1.2. + +Installation and usage +---------------------- + +The import path for the package is *gopkg.in/yaml.v2*. + +To install it, run: + + go get gopkg.in/yaml.v2 + +API documentation +----------------- + +If opened in a browser, the import path itself leads to the API documentation: + + * [https://gopkg.in/yaml.v2](https://gopkg.in/yaml.v2) + +API stability +------------- + +The package API for yaml v2 will remain stable as described in [gopkg.in](https://gopkg.in). + + +License +------- + +The yaml package is licensed under the Apache License 2.0. Please see the LICENSE file for details. + + +Example +------- + +```Go +package main + +import ( + "fmt" + "log" + + "gopkg.in/yaml.v2" +) + +var data = ` +a: Easy! +b: + c: 2 + d: [3, 4] +` + +// Note: struct fields must be public in order for unmarshal to +// correctly populate the data. +type T struct { + A string + B struct { + RenamedC int `yaml:"c"` + D []int `yaml:",flow"` + } +} + +func main() { + t := T{} + + err := yaml.Unmarshal([]byte(data), &t) + if err != nil { + log.Fatalf("error: %v", err) + } + fmt.Printf("--- t:\n%v\n\n", t) + + d, err := yaml.Marshal(&t) + if err != nil { + log.Fatalf("error: %v", err) + } + fmt.Printf("--- t dump:\n%s\n\n", string(d)) + + m := make(map[interface{}]interface{}) + + err = yaml.Unmarshal([]byte(data), &m) + if err != nil { + log.Fatalf("error: %v", err) + } + fmt.Printf("--- m:\n%v\n\n", m) + + d, err = yaml.Marshal(&m) + if err != nil { + log.Fatalf("error: %v", err) + } + fmt.Printf("--- m dump:\n%s\n\n", string(d)) +} +``` + +This example will generate the following output: + +``` +--- t: +{Easy! {2 [3 4]}} + +--- t dump: +a: Easy! +b: + c: 2 + d: [3, 4] + + +--- m: +map[a:Easy! b:map[c:2 d:[3 4]]] + +--- m dump: +a: Easy! +b: + c: 2 + d: + - 3 + - 4 +``` + diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/apic.go b/vendor/sigs.k8s.io/yaml/goyaml.v2/apic.go new file mode 100644 index 0000000000000..acf71402cf31a --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/apic.go @@ -0,0 +1,744 @@ +package yaml + +import ( + "io" +) + +func yaml_insert_token(parser *yaml_parser_t, pos int, token *yaml_token_t) { + //fmt.Println("yaml_insert_token", "pos:", pos, "typ:", token.typ, "head:", parser.tokens_head, "len:", len(parser.tokens)) + + // Check if we can move the queue at the beginning of the buffer. + if parser.tokens_head > 0 && len(parser.tokens) == cap(parser.tokens) { + if parser.tokens_head != len(parser.tokens) { + copy(parser.tokens, parser.tokens[parser.tokens_head:]) + } + parser.tokens = parser.tokens[:len(parser.tokens)-parser.tokens_head] + parser.tokens_head = 0 + } + parser.tokens = append(parser.tokens, *token) + if pos < 0 { + return + } + copy(parser.tokens[parser.tokens_head+pos+1:], parser.tokens[parser.tokens_head+pos:]) + parser.tokens[parser.tokens_head+pos] = *token +} + +// Create a new parser object. +func yaml_parser_initialize(parser *yaml_parser_t) bool { + *parser = yaml_parser_t{ + raw_buffer: make([]byte, 0, input_raw_buffer_size), + buffer: make([]byte, 0, input_buffer_size), + } + return true +} + +// Destroy a parser object. +func yaml_parser_delete(parser *yaml_parser_t) { + *parser = yaml_parser_t{} +} + +// String read handler. +func yaml_string_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) { + if parser.input_pos == len(parser.input) { + return 0, io.EOF + } + n = copy(buffer, parser.input[parser.input_pos:]) + parser.input_pos += n + return n, nil +} + +// Reader read handler. +func yaml_reader_read_handler(parser *yaml_parser_t, buffer []byte) (n int, err error) { + return parser.input_reader.Read(buffer) +} + +// Set a string input. +func yaml_parser_set_input_string(parser *yaml_parser_t, input []byte) { + if parser.read_handler != nil { + panic("must set the input source only once") + } + parser.read_handler = yaml_string_read_handler + parser.input = input + parser.input_pos = 0 +} + +// Set a file input. +func yaml_parser_set_input_reader(parser *yaml_parser_t, r io.Reader) { + if parser.read_handler != nil { + panic("must set the input source only once") + } + parser.read_handler = yaml_reader_read_handler + parser.input_reader = r +} + +// Set the source encoding. +func yaml_parser_set_encoding(parser *yaml_parser_t, encoding yaml_encoding_t) { + if parser.encoding != yaml_ANY_ENCODING { + panic("must set the encoding only once") + } + parser.encoding = encoding +} + +var disableLineWrapping = false + +// Create a new emitter object. +func yaml_emitter_initialize(emitter *yaml_emitter_t) { + *emitter = yaml_emitter_t{ + buffer: make([]byte, output_buffer_size), + raw_buffer: make([]byte, 0, output_raw_buffer_size), + states: make([]yaml_emitter_state_t, 0, initial_stack_size), + events: make([]yaml_event_t, 0, initial_queue_size), + } + if disableLineWrapping { + emitter.best_width = -1 + } +} + +// Destroy an emitter object. +func yaml_emitter_delete(emitter *yaml_emitter_t) { + *emitter = yaml_emitter_t{} +} + +// String write handler. +func yaml_string_write_handler(emitter *yaml_emitter_t, buffer []byte) error { + *emitter.output_buffer = append(*emitter.output_buffer, buffer...) + return nil +} + +// yaml_writer_write_handler uses emitter.output_writer to write the +// emitted text. +func yaml_writer_write_handler(emitter *yaml_emitter_t, buffer []byte) error { + _, err := emitter.output_writer.Write(buffer) + return err +} + +// Set a string output. +func yaml_emitter_set_output_string(emitter *yaml_emitter_t, output_buffer *[]byte) { + if emitter.write_handler != nil { + panic("must set the output target only once") + } + emitter.write_handler = yaml_string_write_handler + emitter.output_buffer = output_buffer +} + +// Set a file output. +func yaml_emitter_set_output_writer(emitter *yaml_emitter_t, w io.Writer) { + if emitter.write_handler != nil { + panic("must set the output target only once") + } + emitter.write_handler = yaml_writer_write_handler + emitter.output_writer = w +} + +// Set the output encoding. +func yaml_emitter_set_encoding(emitter *yaml_emitter_t, encoding yaml_encoding_t) { + if emitter.encoding != yaml_ANY_ENCODING { + panic("must set the output encoding only once") + } + emitter.encoding = encoding +} + +// Set the canonical output style. +func yaml_emitter_set_canonical(emitter *yaml_emitter_t, canonical bool) { + emitter.canonical = canonical +} + +//// Set the indentation increment. +func yaml_emitter_set_indent(emitter *yaml_emitter_t, indent int) { + if indent < 2 || indent > 9 { + indent = 2 + } + emitter.best_indent = indent +} + +// Set the preferred line width. +func yaml_emitter_set_width(emitter *yaml_emitter_t, width int) { + if width < 0 { + width = -1 + } + emitter.best_width = width +} + +// Set if unescaped non-ASCII characters are allowed. +func yaml_emitter_set_unicode(emitter *yaml_emitter_t, unicode bool) { + emitter.unicode = unicode +} + +// Set the preferred line break character. +func yaml_emitter_set_break(emitter *yaml_emitter_t, line_break yaml_break_t) { + emitter.line_break = line_break +} + +///* +// * Destroy a token object. +// */ +// +//YAML_DECLARE(void) +//yaml_token_delete(yaml_token_t *token) +//{ +// assert(token); // Non-NULL token object expected. +// +// switch (token.type) +// { +// case YAML_TAG_DIRECTIVE_TOKEN: +// yaml_free(token.data.tag_directive.handle); +// yaml_free(token.data.tag_directive.prefix); +// break; +// +// case YAML_ALIAS_TOKEN: +// yaml_free(token.data.alias.value); +// break; +// +// case YAML_ANCHOR_TOKEN: +// yaml_free(token.data.anchor.value); +// break; +// +// case YAML_TAG_TOKEN: +// yaml_free(token.data.tag.handle); +// yaml_free(token.data.tag.suffix); +// break; +// +// case YAML_SCALAR_TOKEN: +// yaml_free(token.data.scalar.value); +// break; +// +// default: +// break; +// } +// +// memset(token, 0, sizeof(yaml_token_t)); +//} +// +///* +// * Check if a string is a valid UTF-8 sequence. +// * +// * Check 'reader.c' for more details on UTF-8 encoding. +// */ +// +//static int +//yaml_check_utf8(yaml_char_t *start, size_t length) +//{ +// yaml_char_t *end = start+length; +// yaml_char_t *pointer = start; +// +// while (pointer < end) { +// unsigned char octet; +// unsigned int width; +// unsigned int value; +// size_t k; +// +// octet = pointer[0]; +// width = (octet & 0x80) == 0x00 ? 1 : +// (octet & 0xE0) == 0xC0 ? 2 : +// (octet & 0xF0) == 0xE0 ? 3 : +// (octet & 0xF8) == 0xF0 ? 4 : 0; +// value = (octet & 0x80) == 0x00 ? octet & 0x7F : +// (octet & 0xE0) == 0xC0 ? octet & 0x1F : +// (octet & 0xF0) == 0xE0 ? octet & 0x0F : +// (octet & 0xF8) == 0xF0 ? octet & 0x07 : 0; +// if (!width) return 0; +// if (pointer+width > end) return 0; +// for (k = 1; k < width; k ++) { +// octet = pointer[k]; +// if ((octet & 0xC0) != 0x80) return 0; +// value = (value << 6) + (octet & 0x3F); +// } +// if (!((width == 1) || +// (width == 2 && value >= 0x80) || +// (width == 3 && value >= 0x800) || +// (width == 4 && value >= 0x10000))) return 0; +// +// pointer += width; +// } +// +// return 1; +//} +// + +// Create STREAM-START. +func yaml_stream_start_event_initialize(event *yaml_event_t, encoding yaml_encoding_t) { + *event = yaml_event_t{ + typ: yaml_STREAM_START_EVENT, + encoding: encoding, + } +} + +// Create STREAM-END. +func yaml_stream_end_event_initialize(event *yaml_event_t) { + *event = yaml_event_t{ + typ: yaml_STREAM_END_EVENT, + } +} + +// Create DOCUMENT-START. +func yaml_document_start_event_initialize( + event *yaml_event_t, + version_directive *yaml_version_directive_t, + tag_directives []yaml_tag_directive_t, + implicit bool, +) { + *event = yaml_event_t{ + typ: yaml_DOCUMENT_START_EVENT, + version_directive: version_directive, + tag_directives: tag_directives, + implicit: implicit, + } +} + +// Create DOCUMENT-END. +func yaml_document_end_event_initialize(event *yaml_event_t, implicit bool) { + *event = yaml_event_t{ + typ: yaml_DOCUMENT_END_EVENT, + implicit: implicit, + } +} + +///* +// * Create ALIAS. +// */ +// +//YAML_DECLARE(int) +//yaml_alias_event_initialize(event *yaml_event_t, anchor *yaml_char_t) +//{ +// mark yaml_mark_t = { 0, 0, 0 } +// anchor_copy *yaml_char_t = NULL +// +// assert(event) // Non-NULL event object is expected. +// assert(anchor) // Non-NULL anchor is expected. +// +// if (!yaml_check_utf8(anchor, strlen((char *)anchor))) return 0 +// +// anchor_copy = yaml_strdup(anchor) +// if (!anchor_copy) +// return 0 +// +// ALIAS_EVENT_INIT(*event, anchor_copy, mark, mark) +// +// return 1 +//} + +// Create SCALAR. +func yaml_scalar_event_initialize(event *yaml_event_t, anchor, tag, value []byte, plain_implicit, quoted_implicit bool, style yaml_scalar_style_t) bool { + *event = yaml_event_t{ + typ: yaml_SCALAR_EVENT, + anchor: anchor, + tag: tag, + value: value, + implicit: plain_implicit, + quoted_implicit: quoted_implicit, + style: yaml_style_t(style), + } + return true +} + +// Create SEQUENCE-START. +func yaml_sequence_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_sequence_style_t) bool { + *event = yaml_event_t{ + typ: yaml_SEQUENCE_START_EVENT, + anchor: anchor, + tag: tag, + implicit: implicit, + style: yaml_style_t(style), + } + return true +} + +// Create SEQUENCE-END. +func yaml_sequence_end_event_initialize(event *yaml_event_t) bool { + *event = yaml_event_t{ + typ: yaml_SEQUENCE_END_EVENT, + } + return true +} + +// Create MAPPING-START. +func yaml_mapping_start_event_initialize(event *yaml_event_t, anchor, tag []byte, implicit bool, style yaml_mapping_style_t) { + *event = yaml_event_t{ + typ: yaml_MAPPING_START_EVENT, + anchor: anchor, + tag: tag, + implicit: implicit, + style: yaml_style_t(style), + } +} + +// Create MAPPING-END. +func yaml_mapping_end_event_initialize(event *yaml_event_t) { + *event = yaml_event_t{ + typ: yaml_MAPPING_END_EVENT, + } +} + +// Destroy an event object. +func yaml_event_delete(event *yaml_event_t) { + *event = yaml_event_t{} +} + +///* +// * Create a document object. +// */ +// +//YAML_DECLARE(int) +//yaml_document_initialize(document *yaml_document_t, +// version_directive *yaml_version_directive_t, +// tag_directives_start *yaml_tag_directive_t, +// tag_directives_end *yaml_tag_directive_t, +// start_implicit int, end_implicit int) +//{ +// struct { +// error yaml_error_type_t +// } context +// struct { +// start *yaml_node_t +// end *yaml_node_t +// top *yaml_node_t +// } nodes = { NULL, NULL, NULL } +// version_directive_copy *yaml_version_directive_t = NULL +// struct { +// start *yaml_tag_directive_t +// end *yaml_tag_directive_t +// top *yaml_tag_directive_t +// } tag_directives_copy = { NULL, NULL, NULL } +// value yaml_tag_directive_t = { NULL, NULL } +// mark yaml_mark_t = { 0, 0, 0 } +// +// assert(document) // Non-NULL document object is expected. +// assert((tag_directives_start && tag_directives_end) || +// (tag_directives_start == tag_directives_end)) +// // Valid tag directives are expected. +// +// if (!STACK_INIT(&context, nodes, INITIAL_STACK_SIZE)) goto error +// +// if (version_directive) { +// version_directive_copy = yaml_malloc(sizeof(yaml_version_directive_t)) +// if (!version_directive_copy) goto error +// version_directive_copy.major = version_directive.major +// version_directive_copy.minor = version_directive.minor +// } +// +// if (tag_directives_start != tag_directives_end) { +// tag_directive *yaml_tag_directive_t +// if (!STACK_INIT(&context, tag_directives_copy, INITIAL_STACK_SIZE)) +// goto error +// for (tag_directive = tag_directives_start +// tag_directive != tag_directives_end; tag_directive ++) { +// assert(tag_directive.handle) +// assert(tag_directive.prefix) +// if (!yaml_check_utf8(tag_directive.handle, +// strlen((char *)tag_directive.handle))) +// goto error +// if (!yaml_check_utf8(tag_directive.prefix, +// strlen((char *)tag_directive.prefix))) +// goto error +// value.handle = yaml_strdup(tag_directive.handle) +// value.prefix = yaml_strdup(tag_directive.prefix) +// if (!value.handle || !value.prefix) goto error +// if (!PUSH(&context, tag_directives_copy, value)) +// goto error +// value.handle = NULL +// value.prefix = NULL +// } +// } +// +// DOCUMENT_INIT(*document, nodes.start, nodes.end, version_directive_copy, +// tag_directives_copy.start, tag_directives_copy.top, +// start_implicit, end_implicit, mark, mark) +// +// return 1 +// +//error: +// STACK_DEL(&context, nodes) +// yaml_free(version_directive_copy) +// while (!STACK_EMPTY(&context, tag_directives_copy)) { +// value yaml_tag_directive_t = POP(&context, tag_directives_copy) +// yaml_free(value.handle) +// yaml_free(value.prefix) +// } +// STACK_DEL(&context, tag_directives_copy) +// yaml_free(value.handle) +// yaml_free(value.prefix) +// +// return 0 +//} +// +///* +// * Destroy a document object. +// */ +// +//YAML_DECLARE(void) +//yaml_document_delete(document *yaml_document_t) +//{ +// struct { +// error yaml_error_type_t +// } context +// tag_directive *yaml_tag_directive_t +// +// context.error = YAML_NO_ERROR // Eliminate a compiler warning. +// +// assert(document) // Non-NULL document object is expected. +// +// while (!STACK_EMPTY(&context, document.nodes)) { +// node yaml_node_t = POP(&context, document.nodes) +// yaml_free(node.tag) +// switch (node.type) { +// case YAML_SCALAR_NODE: +// yaml_free(node.data.scalar.value) +// break +// case YAML_SEQUENCE_NODE: +// STACK_DEL(&context, node.data.sequence.items) +// break +// case YAML_MAPPING_NODE: +// STACK_DEL(&context, node.data.mapping.pairs) +// break +// default: +// assert(0) // Should not happen. +// } +// } +// STACK_DEL(&context, document.nodes) +// +// yaml_free(document.version_directive) +// for (tag_directive = document.tag_directives.start +// tag_directive != document.tag_directives.end +// tag_directive++) { +// yaml_free(tag_directive.handle) +// yaml_free(tag_directive.prefix) +// } +// yaml_free(document.tag_directives.start) +// +// memset(document, 0, sizeof(yaml_document_t)) +//} +// +///** +// * Get a document node. +// */ +// +//YAML_DECLARE(yaml_node_t *) +//yaml_document_get_node(document *yaml_document_t, index int) +//{ +// assert(document) // Non-NULL document object is expected. +// +// if (index > 0 && document.nodes.start + index <= document.nodes.top) { +// return document.nodes.start + index - 1 +// } +// return NULL +//} +// +///** +// * Get the root object. +// */ +// +//YAML_DECLARE(yaml_node_t *) +//yaml_document_get_root_node(document *yaml_document_t) +//{ +// assert(document) // Non-NULL document object is expected. +// +// if (document.nodes.top != document.nodes.start) { +// return document.nodes.start +// } +// return NULL +//} +// +///* +// * Add a scalar node to a document. +// */ +// +//YAML_DECLARE(int) +//yaml_document_add_scalar(document *yaml_document_t, +// tag *yaml_char_t, value *yaml_char_t, length int, +// style yaml_scalar_style_t) +//{ +// struct { +// error yaml_error_type_t +// } context +// mark yaml_mark_t = { 0, 0, 0 } +// tag_copy *yaml_char_t = NULL +// value_copy *yaml_char_t = NULL +// node yaml_node_t +// +// assert(document) // Non-NULL document object is expected. +// assert(value) // Non-NULL value is expected. +// +// if (!tag) { +// tag = (yaml_char_t *)YAML_DEFAULT_SCALAR_TAG +// } +// +// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error +// tag_copy = yaml_strdup(tag) +// if (!tag_copy) goto error +// +// if (length < 0) { +// length = strlen((char *)value) +// } +// +// if (!yaml_check_utf8(value, length)) goto error +// value_copy = yaml_malloc(length+1) +// if (!value_copy) goto error +// memcpy(value_copy, value, length) +// value_copy[length] = '\0' +// +// SCALAR_NODE_INIT(node, tag_copy, value_copy, length, style, mark, mark) +// if (!PUSH(&context, document.nodes, node)) goto error +// +// return document.nodes.top - document.nodes.start +// +//error: +// yaml_free(tag_copy) +// yaml_free(value_copy) +// +// return 0 +//} +// +///* +// * Add a sequence node to a document. +// */ +// +//YAML_DECLARE(int) +//yaml_document_add_sequence(document *yaml_document_t, +// tag *yaml_char_t, style yaml_sequence_style_t) +//{ +// struct { +// error yaml_error_type_t +// } context +// mark yaml_mark_t = { 0, 0, 0 } +// tag_copy *yaml_char_t = NULL +// struct { +// start *yaml_node_item_t +// end *yaml_node_item_t +// top *yaml_node_item_t +// } items = { NULL, NULL, NULL } +// node yaml_node_t +// +// assert(document) // Non-NULL document object is expected. +// +// if (!tag) { +// tag = (yaml_char_t *)YAML_DEFAULT_SEQUENCE_TAG +// } +// +// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error +// tag_copy = yaml_strdup(tag) +// if (!tag_copy) goto error +// +// if (!STACK_INIT(&context, items, INITIAL_STACK_SIZE)) goto error +// +// SEQUENCE_NODE_INIT(node, tag_copy, items.start, items.end, +// style, mark, mark) +// if (!PUSH(&context, document.nodes, node)) goto error +// +// return document.nodes.top - document.nodes.start +// +//error: +// STACK_DEL(&context, items) +// yaml_free(tag_copy) +// +// return 0 +//} +// +///* +// * Add a mapping node to a document. +// */ +// +//YAML_DECLARE(int) +//yaml_document_add_mapping(document *yaml_document_t, +// tag *yaml_char_t, style yaml_mapping_style_t) +//{ +// struct { +// error yaml_error_type_t +// } context +// mark yaml_mark_t = { 0, 0, 0 } +// tag_copy *yaml_char_t = NULL +// struct { +// start *yaml_node_pair_t +// end *yaml_node_pair_t +// top *yaml_node_pair_t +// } pairs = { NULL, NULL, NULL } +// node yaml_node_t +// +// assert(document) // Non-NULL document object is expected. +// +// if (!tag) { +// tag = (yaml_char_t *)YAML_DEFAULT_MAPPING_TAG +// } +// +// if (!yaml_check_utf8(tag, strlen((char *)tag))) goto error +// tag_copy = yaml_strdup(tag) +// if (!tag_copy) goto error +// +// if (!STACK_INIT(&context, pairs, INITIAL_STACK_SIZE)) goto error +// +// MAPPING_NODE_INIT(node, tag_copy, pairs.start, pairs.end, +// style, mark, mark) +// if (!PUSH(&context, document.nodes, node)) goto error +// +// return document.nodes.top - document.nodes.start +// +//error: +// STACK_DEL(&context, pairs) +// yaml_free(tag_copy) +// +// return 0 +//} +// +///* +// * Append an item to a sequence node. +// */ +// +//YAML_DECLARE(int) +//yaml_document_append_sequence_item(document *yaml_document_t, +// sequence int, item int) +//{ +// struct { +// error yaml_error_type_t +// } context +// +// assert(document) // Non-NULL document is required. +// assert(sequence > 0 +// && document.nodes.start + sequence <= document.nodes.top) +// // Valid sequence id is required. +// assert(document.nodes.start[sequence-1].type == YAML_SEQUENCE_NODE) +// // A sequence node is required. +// assert(item > 0 && document.nodes.start + item <= document.nodes.top) +// // Valid item id is required. +// +// if (!PUSH(&context, +// document.nodes.start[sequence-1].data.sequence.items, item)) +// return 0 +// +// return 1 +//} +// +///* +// * Append a pair of a key and a value to a mapping node. +// */ +// +//YAML_DECLARE(int) +//yaml_document_append_mapping_pair(document *yaml_document_t, +// mapping int, key int, value int) +//{ +// struct { +// error yaml_error_type_t +// } context +// +// pair yaml_node_pair_t +// +// assert(document) // Non-NULL document is required. +// assert(mapping > 0 +// && document.nodes.start + mapping <= document.nodes.top) +// // Valid mapping id is required. +// assert(document.nodes.start[mapping-1].type == YAML_MAPPING_NODE) +// // A mapping node is required. +// assert(key > 0 && document.nodes.start + key <= document.nodes.top) +// // Valid key id is required. +// assert(value > 0 && document.nodes.start + value <= document.nodes.top) +// // Valid value id is required. +// +// pair.key = key +// pair.value = value +// +// if (!PUSH(&context, +// document.nodes.start[mapping-1].data.mapping.pairs, pair)) +// return 0 +// +// return 1 +//} +// +// diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/decode.go b/vendor/sigs.k8s.io/yaml/goyaml.v2/decode.go new file mode 100644 index 0000000000000..129bc2a97d317 --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/decode.go @@ -0,0 +1,815 @@ +package yaml + +import ( + "encoding" + "encoding/base64" + "fmt" + "io" + "math" + "reflect" + "strconv" + "time" +) + +const ( + documentNode = 1 << iota + mappingNode + sequenceNode + scalarNode + aliasNode +) + +type node struct { + kind int + line, column int + tag string + // For an alias node, alias holds the resolved alias. + alias *node + value string + implicit bool + children []*node + anchors map[string]*node +} + +// ---------------------------------------------------------------------------- +// Parser, produces a node tree out of a libyaml event stream. + +type parser struct { + parser yaml_parser_t + event yaml_event_t + doc *node + doneInit bool +} + +func newParser(b []byte) *parser { + p := parser{} + if !yaml_parser_initialize(&p.parser) { + panic("failed to initialize YAML emitter") + } + if len(b) == 0 { + b = []byte{'\n'} + } + yaml_parser_set_input_string(&p.parser, b) + return &p +} + +func newParserFromReader(r io.Reader) *parser { + p := parser{} + if !yaml_parser_initialize(&p.parser) { + panic("failed to initialize YAML emitter") + } + yaml_parser_set_input_reader(&p.parser, r) + return &p +} + +func (p *parser) init() { + if p.doneInit { + return + } + p.expect(yaml_STREAM_START_EVENT) + p.doneInit = true +} + +func (p *parser) destroy() { + if p.event.typ != yaml_NO_EVENT { + yaml_event_delete(&p.event) + } + yaml_parser_delete(&p.parser) +} + +// expect consumes an event from the event stream and +// checks that it's of the expected type. +func (p *parser) expect(e yaml_event_type_t) { + if p.event.typ == yaml_NO_EVENT { + if !yaml_parser_parse(&p.parser, &p.event) { + p.fail() + } + } + if p.event.typ == yaml_STREAM_END_EVENT { + failf("attempted to go past the end of stream; corrupted value?") + } + if p.event.typ != e { + p.parser.problem = fmt.Sprintf("expected %s event but got %s", e, p.event.typ) + p.fail() + } + yaml_event_delete(&p.event) + p.event.typ = yaml_NO_EVENT +} + +// peek peeks at the next event in the event stream, +// puts the results into p.event and returns the event type. +func (p *parser) peek() yaml_event_type_t { + if p.event.typ != yaml_NO_EVENT { + return p.event.typ + } + if !yaml_parser_parse(&p.parser, &p.event) { + p.fail() + } + return p.event.typ +} + +func (p *parser) fail() { + var where string + var line int + if p.parser.problem_mark.line != 0 { + line = p.parser.problem_mark.line + // Scanner errors don't iterate line before returning error + if p.parser.error == yaml_SCANNER_ERROR { + line++ + } + } else if p.parser.context_mark.line != 0 { + line = p.parser.context_mark.line + } + if line != 0 { + where = "line " + strconv.Itoa(line) + ": " + } + var msg string + if len(p.parser.problem) > 0 { + msg = p.parser.problem + } else { + msg = "unknown problem parsing YAML content" + } + failf("%s%s", where, msg) +} + +func (p *parser) anchor(n *node, anchor []byte) { + if anchor != nil { + p.doc.anchors[string(anchor)] = n + } +} + +func (p *parser) parse() *node { + p.init() + switch p.peek() { + case yaml_SCALAR_EVENT: + return p.scalar() + case yaml_ALIAS_EVENT: + return p.alias() + case yaml_MAPPING_START_EVENT: + return p.mapping() + case yaml_SEQUENCE_START_EVENT: + return p.sequence() + case yaml_DOCUMENT_START_EVENT: + return p.document() + case yaml_STREAM_END_EVENT: + // Happens when attempting to decode an empty buffer. + return nil + default: + panic("attempted to parse unknown event: " + p.event.typ.String()) + } +} + +func (p *parser) node(kind int) *node { + return &node{ + kind: kind, + line: p.event.start_mark.line, + column: p.event.start_mark.column, + } +} + +func (p *parser) document() *node { + n := p.node(documentNode) + n.anchors = make(map[string]*node) + p.doc = n + p.expect(yaml_DOCUMENT_START_EVENT) + n.children = append(n.children, p.parse()) + p.expect(yaml_DOCUMENT_END_EVENT) + return n +} + +func (p *parser) alias() *node { + n := p.node(aliasNode) + n.value = string(p.event.anchor) + n.alias = p.doc.anchors[n.value] + if n.alias == nil { + failf("unknown anchor '%s' referenced", n.value) + } + p.expect(yaml_ALIAS_EVENT) + return n +} + +func (p *parser) scalar() *node { + n := p.node(scalarNode) + n.value = string(p.event.value) + n.tag = string(p.event.tag) + n.implicit = p.event.implicit + p.anchor(n, p.event.anchor) + p.expect(yaml_SCALAR_EVENT) + return n +} + +func (p *parser) sequence() *node { + n := p.node(sequenceNode) + p.anchor(n, p.event.anchor) + p.expect(yaml_SEQUENCE_START_EVENT) + for p.peek() != yaml_SEQUENCE_END_EVENT { + n.children = append(n.children, p.parse()) + } + p.expect(yaml_SEQUENCE_END_EVENT) + return n +} + +func (p *parser) mapping() *node { + n := p.node(mappingNode) + p.anchor(n, p.event.anchor) + p.expect(yaml_MAPPING_START_EVENT) + for p.peek() != yaml_MAPPING_END_EVENT { + n.children = append(n.children, p.parse(), p.parse()) + } + p.expect(yaml_MAPPING_END_EVENT) + return n +} + +// ---------------------------------------------------------------------------- +// Decoder, unmarshals a node into a provided value. + +type decoder struct { + doc *node + aliases map[*node]bool + mapType reflect.Type + terrors []string + strict bool + + decodeCount int + aliasCount int + aliasDepth int +} + +var ( + mapItemType = reflect.TypeOf(MapItem{}) + durationType = reflect.TypeOf(time.Duration(0)) + defaultMapType = reflect.TypeOf(map[interface{}]interface{}{}) + ifaceType = defaultMapType.Elem() + timeType = reflect.TypeOf(time.Time{}) + ptrTimeType = reflect.TypeOf(&time.Time{}) +) + +func newDecoder(strict bool) *decoder { + d := &decoder{mapType: defaultMapType, strict: strict} + d.aliases = make(map[*node]bool) + return d +} + +func (d *decoder) terror(n *node, tag string, out reflect.Value) { + if n.tag != "" { + tag = n.tag + } + value := n.value + if tag != yaml_SEQ_TAG && tag != yaml_MAP_TAG { + if len(value) > 10 { + value = " `" + value[:7] + "...`" + } else { + value = " `" + value + "`" + } + } + d.terrors = append(d.terrors, fmt.Sprintf("line %d: cannot unmarshal %s%s into %s", n.line+1, shortTag(tag), value, out.Type())) +} + +func (d *decoder) callUnmarshaler(n *node, u Unmarshaler) (good bool) { + terrlen := len(d.terrors) + err := u.UnmarshalYAML(func(v interface{}) (err error) { + defer handleErr(&err) + d.unmarshal(n, reflect.ValueOf(v)) + if len(d.terrors) > terrlen { + issues := d.terrors[terrlen:] + d.terrors = d.terrors[:terrlen] + return &TypeError{issues} + } + return nil + }) + if e, ok := err.(*TypeError); ok { + d.terrors = append(d.terrors, e.Errors...) + return false + } + if err != nil { + fail(err) + } + return true +} + +// d.prepare initializes and dereferences pointers and calls UnmarshalYAML +// if a value is found to implement it. +// It returns the initialized and dereferenced out value, whether +// unmarshalling was already done by UnmarshalYAML, and if so whether +// its types unmarshalled appropriately. +// +// If n holds a null value, prepare returns before doing anything. +func (d *decoder) prepare(n *node, out reflect.Value) (newout reflect.Value, unmarshaled, good bool) { + if n.tag == yaml_NULL_TAG || n.kind == scalarNode && n.tag == "" && (n.value == "null" || n.value == "~" || n.value == "" && n.implicit) { + return out, false, false + } + again := true + for again { + again = false + if out.Kind() == reflect.Ptr { + if out.IsNil() { + out.Set(reflect.New(out.Type().Elem())) + } + out = out.Elem() + again = true + } + if out.CanAddr() { + if u, ok := out.Addr().Interface().(Unmarshaler); ok { + good = d.callUnmarshaler(n, u) + return out, true, good + } + } + } + return out, false, false +} + +const ( + // 400,000 decode operations is ~500kb of dense object declarations, or + // ~5kb of dense object declarations with 10000% alias expansion + alias_ratio_range_low = 400000 + + // 4,000,000 decode operations is ~5MB of dense object declarations, or + // ~4.5MB of dense object declarations with 10% alias expansion + alias_ratio_range_high = 4000000 + + // alias_ratio_range is the range over which we scale allowed alias ratios + alias_ratio_range = float64(alias_ratio_range_high - alias_ratio_range_low) +) + +func allowedAliasRatio(decodeCount int) float64 { + switch { + case decodeCount <= alias_ratio_range_low: + // allow 99% to come from alias expansion for small-to-medium documents + return 0.99 + case decodeCount >= alias_ratio_range_high: + // allow 10% to come from alias expansion for very large documents + return 0.10 + default: + // scale smoothly from 99% down to 10% over the range. + // this maps to 396,000 - 400,000 allowed alias-driven decodes over the range. + // 400,000 decode operations is ~100MB of allocations in worst-case scenarios (single-item maps). + return 0.99 - 0.89*(float64(decodeCount-alias_ratio_range_low)/alias_ratio_range) + } +} + +func (d *decoder) unmarshal(n *node, out reflect.Value) (good bool) { + d.decodeCount++ + if d.aliasDepth > 0 { + d.aliasCount++ + } + if d.aliasCount > 100 && d.decodeCount > 1000 && float64(d.aliasCount)/float64(d.decodeCount) > allowedAliasRatio(d.decodeCount) { + failf("document contains excessive aliasing") + } + switch n.kind { + case documentNode: + return d.document(n, out) + case aliasNode: + return d.alias(n, out) + } + out, unmarshaled, good := d.prepare(n, out) + if unmarshaled { + return good + } + switch n.kind { + case scalarNode: + good = d.scalar(n, out) + case mappingNode: + good = d.mapping(n, out) + case sequenceNode: + good = d.sequence(n, out) + default: + panic("internal error: unknown node kind: " + strconv.Itoa(n.kind)) + } + return good +} + +func (d *decoder) document(n *node, out reflect.Value) (good bool) { + if len(n.children) == 1 { + d.doc = n + d.unmarshal(n.children[0], out) + return true + } + return false +} + +func (d *decoder) alias(n *node, out reflect.Value) (good bool) { + if d.aliases[n] { + // TODO this could actually be allowed in some circumstances. + failf("anchor '%s' value contains itself", n.value) + } + d.aliases[n] = true + d.aliasDepth++ + good = d.unmarshal(n.alias, out) + d.aliasDepth-- + delete(d.aliases, n) + return good +} + +var zeroValue reflect.Value + +func resetMap(out reflect.Value) { + for _, k := range out.MapKeys() { + out.SetMapIndex(k, zeroValue) + } +} + +func (d *decoder) scalar(n *node, out reflect.Value) bool { + var tag string + var resolved interface{} + if n.tag == "" && !n.implicit { + tag = yaml_STR_TAG + resolved = n.value + } else { + tag, resolved = resolve(n.tag, n.value) + if tag == yaml_BINARY_TAG { + data, err := base64.StdEncoding.DecodeString(resolved.(string)) + if err != nil { + failf("!!binary value contains invalid base64 data") + } + resolved = string(data) + } + } + if resolved == nil { + if out.Kind() == reflect.Map && !out.CanAddr() { + resetMap(out) + } else { + out.Set(reflect.Zero(out.Type())) + } + return true + } + if resolvedv := reflect.ValueOf(resolved); out.Type() == resolvedv.Type() { + // We've resolved to exactly the type we want, so use that. + out.Set(resolvedv) + return true + } + // Perhaps we can use the value as a TextUnmarshaler to + // set its value. + if out.CanAddr() { + u, ok := out.Addr().Interface().(encoding.TextUnmarshaler) + if ok { + var text []byte + if tag == yaml_BINARY_TAG { + text = []byte(resolved.(string)) + } else { + // We let any value be unmarshaled into TextUnmarshaler. + // That might be more lax than we'd like, but the + // TextUnmarshaler itself should bowl out any dubious values. + text = []byte(n.value) + } + err := u.UnmarshalText(text) + if err != nil { + fail(err) + } + return true + } + } + switch out.Kind() { + case reflect.String: + if tag == yaml_BINARY_TAG { + out.SetString(resolved.(string)) + return true + } + if resolved != nil { + out.SetString(n.value) + return true + } + case reflect.Interface: + if resolved == nil { + out.Set(reflect.Zero(out.Type())) + } else if tag == yaml_TIMESTAMP_TAG { + // It looks like a timestamp but for backward compatibility + // reasons we set it as a string, so that code that unmarshals + // timestamp-like values into interface{} will continue to + // see a string and not a time.Time. + // TODO(v3) Drop this. + out.Set(reflect.ValueOf(n.value)) + } else { + out.Set(reflect.ValueOf(resolved)) + } + return true + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + switch resolved := resolved.(type) { + case int: + if !out.OverflowInt(int64(resolved)) { + out.SetInt(int64(resolved)) + return true + } + case int64: + if !out.OverflowInt(resolved) { + out.SetInt(resolved) + return true + } + case uint64: + if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) { + out.SetInt(int64(resolved)) + return true + } + case float64: + if resolved <= math.MaxInt64 && !out.OverflowInt(int64(resolved)) { + out.SetInt(int64(resolved)) + return true + } + case string: + if out.Type() == durationType { + d, err := time.ParseDuration(resolved) + if err == nil { + out.SetInt(int64(d)) + return true + } + } + } + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: + switch resolved := resolved.(type) { + case int: + if resolved >= 0 && !out.OverflowUint(uint64(resolved)) { + out.SetUint(uint64(resolved)) + return true + } + case int64: + if resolved >= 0 && !out.OverflowUint(uint64(resolved)) { + out.SetUint(uint64(resolved)) + return true + } + case uint64: + if !out.OverflowUint(uint64(resolved)) { + out.SetUint(uint64(resolved)) + return true + } + case float64: + if resolved <= math.MaxUint64 && !out.OverflowUint(uint64(resolved)) { + out.SetUint(uint64(resolved)) + return true + } + } + case reflect.Bool: + switch resolved := resolved.(type) { + case bool: + out.SetBool(resolved) + return true + } + case reflect.Float32, reflect.Float64: + switch resolved := resolved.(type) { + case int: + out.SetFloat(float64(resolved)) + return true + case int64: + out.SetFloat(float64(resolved)) + return true + case uint64: + out.SetFloat(float64(resolved)) + return true + case float64: + out.SetFloat(resolved) + return true + } + case reflect.Struct: + if resolvedv := reflect.ValueOf(resolved); out.Type() == resolvedv.Type() { + out.Set(resolvedv) + return true + } + case reflect.Ptr: + if out.Type().Elem() == reflect.TypeOf(resolved) { + // TODO DOes this make sense? When is out a Ptr except when decoding a nil value? + elem := reflect.New(out.Type().Elem()) + elem.Elem().Set(reflect.ValueOf(resolved)) + out.Set(elem) + return true + } + } + d.terror(n, tag, out) + return false +} + +func settableValueOf(i interface{}) reflect.Value { + v := reflect.ValueOf(i) + sv := reflect.New(v.Type()).Elem() + sv.Set(v) + return sv +} + +func (d *decoder) sequence(n *node, out reflect.Value) (good bool) { + l := len(n.children) + + var iface reflect.Value + switch out.Kind() { + case reflect.Slice: + out.Set(reflect.MakeSlice(out.Type(), l, l)) + case reflect.Array: + if l != out.Len() { + failf("invalid array: want %d elements but got %d", out.Len(), l) + } + case reflect.Interface: + // No type hints. Will have to use a generic sequence. + iface = out + out = settableValueOf(make([]interface{}, l)) + default: + d.terror(n, yaml_SEQ_TAG, out) + return false + } + et := out.Type().Elem() + + j := 0 + for i := 0; i < l; i++ { + e := reflect.New(et).Elem() + if ok := d.unmarshal(n.children[i], e); ok { + out.Index(j).Set(e) + j++ + } + } + if out.Kind() != reflect.Array { + out.Set(out.Slice(0, j)) + } + if iface.IsValid() { + iface.Set(out) + } + return true +} + +func (d *decoder) mapping(n *node, out reflect.Value) (good bool) { + switch out.Kind() { + case reflect.Struct: + return d.mappingStruct(n, out) + case reflect.Slice: + return d.mappingSlice(n, out) + case reflect.Map: + // okay + case reflect.Interface: + if d.mapType.Kind() == reflect.Map { + iface := out + out = reflect.MakeMap(d.mapType) + iface.Set(out) + } else { + slicev := reflect.New(d.mapType).Elem() + if !d.mappingSlice(n, slicev) { + return false + } + out.Set(slicev) + return true + } + default: + d.terror(n, yaml_MAP_TAG, out) + return false + } + outt := out.Type() + kt := outt.Key() + et := outt.Elem() + + mapType := d.mapType + if outt.Key() == ifaceType && outt.Elem() == ifaceType { + d.mapType = outt + } + + if out.IsNil() { + out.Set(reflect.MakeMap(outt)) + } + l := len(n.children) + for i := 0; i < l; i += 2 { + if isMerge(n.children[i]) { + d.merge(n.children[i+1], out) + continue + } + k := reflect.New(kt).Elem() + if d.unmarshal(n.children[i], k) { + kkind := k.Kind() + if kkind == reflect.Interface { + kkind = k.Elem().Kind() + } + if kkind == reflect.Map || kkind == reflect.Slice { + failf("invalid map key: %#v", k.Interface()) + } + e := reflect.New(et).Elem() + if d.unmarshal(n.children[i+1], e) { + d.setMapIndex(n.children[i+1], out, k, e) + } + } + } + d.mapType = mapType + return true +} + +func (d *decoder) setMapIndex(n *node, out, k, v reflect.Value) { + if d.strict && out.MapIndex(k) != zeroValue { + d.terrors = append(d.terrors, fmt.Sprintf("line %d: key %#v already set in map", n.line+1, k.Interface())) + return + } + out.SetMapIndex(k, v) +} + +func (d *decoder) mappingSlice(n *node, out reflect.Value) (good bool) { + outt := out.Type() + if outt.Elem() != mapItemType { + d.terror(n, yaml_MAP_TAG, out) + return false + } + + mapType := d.mapType + d.mapType = outt + + var slice []MapItem + var l = len(n.children) + for i := 0; i < l; i += 2 { + if isMerge(n.children[i]) { + d.merge(n.children[i+1], out) + continue + } + item := MapItem{} + k := reflect.ValueOf(&item.Key).Elem() + if d.unmarshal(n.children[i], k) { + v := reflect.ValueOf(&item.Value).Elem() + if d.unmarshal(n.children[i+1], v) { + slice = append(slice, item) + } + } + } + out.Set(reflect.ValueOf(slice)) + d.mapType = mapType + return true +} + +func (d *decoder) mappingStruct(n *node, out reflect.Value) (good bool) { + sinfo, err := getStructInfo(out.Type()) + if err != nil { + panic(err) + } + name := settableValueOf("") + l := len(n.children) + + var inlineMap reflect.Value + var elemType reflect.Type + if sinfo.InlineMap != -1 { + inlineMap = out.Field(sinfo.InlineMap) + inlineMap.Set(reflect.New(inlineMap.Type()).Elem()) + elemType = inlineMap.Type().Elem() + } + + var doneFields []bool + if d.strict { + doneFields = make([]bool, len(sinfo.FieldsList)) + } + for i := 0; i < l; i += 2 { + ni := n.children[i] + if isMerge(ni) { + d.merge(n.children[i+1], out) + continue + } + if !d.unmarshal(ni, name) { + continue + } + if info, ok := sinfo.FieldsMap[name.String()]; ok { + if d.strict { + if doneFields[info.Id] { + d.terrors = append(d.terrors, fmt.Sprintf("line %d: field %s already set in type %s", ni.line+1, name.String(), out.Type())) + continue + } + doneFields[info.Id] = true + } + var field reflect.Value + if info.Inline == nil { + field = out.Field(info.Num) + } else { + field = out.FieldByIndex(info.Inline) + } + d.unmarshal(n.children[i+1], field) + } else if sinfo.InlineMap != -1 { + if inlineMap.IsNil() { + inlineMap.Set(reflect.MakeMap(inlineMap.Type())) + } + value := reflect.New(elemType).Elem() + d.unmarshal(n.children[i+1], value) + d.setMapIndex(n.children[i+1], inlineMap, name, value) + } else if d.strict { + d.terrors = append(d.terrors, fmt.Sprintf("line %d: field %s not found in type %s", ni.line+1, name.String(), out.Type())) + } + } + return true +} + +func failWantMap() { + failf("map merge requires map or sequence of maps as the value") +} + +func (d *decoder) merge(n *node, out reflect.Value) { + switch n.kind { + case mappingNode: + d.unmarshal(n, out) + case aliasNode: + if n.alias != nil && n.alias.kind != mappingNode { + failWantMap() + } + d.unmarshal(n, out) + case sequenceNode: + // Step backwards as earlier nodes take precedence. + for i := len(n.children) - 1; i >= 0; i-- { + ni := n.children[i] + if ni.kind == aliasNode { + if ni.alias != nil && ni.alias.kind != mappingNode { + failWantMap() + } + } else if ni.kind != mappingNode { + failWantMap() + } + d.unmarshal(ni, out) + } + default: + failWantMap() + } +} + +func isMerge(n *node) bool { + return n.kind == scalarNode && n.value == "<<" && (n.implicit == true || n.tag == yaml_MERGE_TAG) +} diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/emitterc.go b/vendor/sigs.k8s.io/yaml/goyaml.v2/emitterc.go new file mode 100644 index 0000000000000..a1c2cc52627f0 --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/emitterc.go @@ -0,0 +1,1685 @@ +package yaml + +import ( + "bytes" + "fmt" +) + +// Flush the buffer if needed. +func flush(emitter *yaml_emitter_t) bool { + if emitter.buffer_pos+5 >= len(emitter.buffer) { + return yaml_emitter_flush(emitter) + } + return true +} + +// Put a character to the output buffer. +func put(emitter *yaml_emitter_t, value byte) bool { + if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) { + return false + } + emitter.buffer[emitter.buffer_pos] = value + emitter.buffer_pos++ + emitter.column++ + return true +} + +// Put a line break to the output buffer. +func put_break(emitter *yaml_emitter_t) bool { + if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) { + return false + } + switch emitter.line_break { + case yaml_CR_BREAK: + emitter.buffer[emitter.buffer_pos] = '\r' + emitter.buffer_pos += 1 + case yaml_LN_BREAK: + emitter.buffer[emitter.buffer_pos] = '\n' + emitter.buffer_pos += 1 + case yaml_CRLN_BREAK: + emitter.buffer[emitter.buffer_pos+0] = '\r' + emitter.buffer[emitter.buffer_pos+1] = '\n' + emitter.buffer_pos += 2 + default: + panic("unknown line break setting") + } + emitter.column = 0 + emitter.line++ + return true +} + +// Copy a character from a string into buffer. +func write(emitter *yaml_emitter_t, s []byte, i *int) bool { + if emitter.buffer_pos+5 >= len(emitter.buffer) && !yaml_emitter_flush(emitter) { + return false + } + p := emitter.buffer_pos + w := width(s[*i]) + switch w { + case 4: + emitter.buffer[p+3] = s[*i+3] + fallthrough + case 3: + emitter.buffer[p+2] = s[*i+2] + fallthrough + case 2: + emitter.buffer[p+1] = s[*i+1] + fallthrough + case 1: + emitter.buffer[p+0] = s[*i+0] + default: + panic("unknown character width") + } + emitter.column++ + emitter.buffer_pos += w + *i += w + return true +} + +// Write a whole string into buffer. +func write_all(emitter *yaml_emitter_t, s []byte) bool { + for i := 0; i < len(s); { + if !write(emitter, s, &i) { + return false + } + } + return true +} + +// Copy a line break character from a string into buffer. +func write_break(emitter *yaml_emitter_t, s []byte, i *int) bool { + if s[*i] == '\n' { + if !put_break(emitter) { + return false + } + *i++ + } else { + if !write(emitter, s, i) { + return false + } + emitter.column = 0 + emitter.line++ + } + return true +} + +// Set an emitter error and return false. +func yaml_emitter_set_emitter_error(emitter *yaml_emitter_t, problem string) bool { + emitter.error = yaml_EMITTER_ERROR + emitter.problem = problem + return false +} + +// Emit an event. +func yaml_emitter_emit(emitter *yaml_emitter_t, event *yaml_event_t) bool { + emitter.events = append(emitter.events, *event) + for !yaml_emitter_need_more_events(emitter) { + event := &emitter.events[emitter.events_head] + if !yaml_emitter_analyze_event(emitter, event) { + return false + } + if !yaml_emitter_state_machine(emitter, event) { + return false + } + yaml_event_delete(event) + emitter.events_head++ + } + return true +} + +// Check if we need to accumulate more events before emitting. +// +// We accumulate extra +// - 1 event for DOCUMENT-START +// - 2 events for SEQUENCE-START +// - 3 events for MAPPING-START +// +func yaml_emitter_need_more_events(emitter *yaml_emitter_t) bool { + if emitter.events_head == len(emitter.events) { + return true + } + var accumulate int + switch emitter.events[emitter.events_head].typ { + case yaml_DOCUMENT_START_EVENT: + accumulate = 1 + break + case yaml_SEQUENCE_START_EVENT: + accumulate = 2 + break + case yaml_MAPPING_START_EVENT: + accumulate = 3 + break + default: + return false + } + if len(emitter.events)-emitter.events_head > accumulate { + return false + } + var level int + for i := emitter.events_head; i < len(emitter.events); i++ { + switch emitter.events[i].typ { + case yaml_STREAM_START_EVENT, yaml_DOCUMENT_START_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT: + level++ + case yaml_STREAM_END_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_END_EVENT, yaml_MAPPING_END_EVENT: + level-- + } + if level == 0 { + return false + } + } + return true +} + +// Append a directive to the directives stack. +func yaml_emitter_append_tag_directive(emitter *yaml_emitter_t, value *yaml_tag_directive_t, allow_duplicates bool) bool { + for i := 0; i < len(emitter.tag_directives); i++ { + if bytes.Equal(value.handle, emitter.tag_directives[i].handle) { + if allow_duplicates { + return true + } + return yaml_emitter_set_emitter_error(emitter, "duplicate %TAG directive") + } + } + + // [Go] Do we actually need to copy this given garbage collection + // and the lack of deallocating destructors? + tag_copy := yaml_tag_directive_t{ + handle: make([]byte, len(value.handle)), + prefix: make([]byte, len(value.prefix)), + } + copy(tag_copy.handle, value.handle) + copy(tag_copy.prefix, value.prefix) + emitter.tag_directives = append(emitter.tag_directives, tag_copy) + return true +} + +// Increase the indentation level. +func yaml_emitter_increase_indent(emitter *yaml_emitter_t, flow, indentless bool) bool { + emitter.indents = append(emitter.indents, emitter.indent) + if emitter.indent < 0 { + if flow { + emitter.indent = emitter.best_indent + } else { + emitter.indent = 0 + } + } else if !indentless { + emitter.indent += emitter.best_indent + } + return true +} + +// State dispatcher. +func yaml_emitter_state_machine(emitter *yaml_emitter_t, event *yaml_event_t) bool { + switch emitter.state { + default: + case yaml_EMIT_STREAM_START_STATE: + return yaml_emitter_emit_stream_start(emitter, event) + + case yaml_EMIT_FIRST_DOCUMENT_START_STATE: + return yaml_emitter_emit_document_start(emitter, event, true) + + case yaml_EMIT_DOCUMENT_START_STATE: + return yaml_emitter_emit_document_start(emitter, event, false) + + case yaml_EMIT_DOCUMENT_CONTENT_STATE: + return yaml_emitter_emit_document_content(emitter, event) + + case yaml_EMIT_DOCUMENT_END_STATE: + return yaml_emitter_emit_document_end(emitter, event) + + case yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE: + return yaml_emitter_emit_flow_sequence_item(emitter, event, true) + + case yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE: + return yaml_emitter_emit_flow_sequence_item(emitter, event, false) + + case yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE: + return yaml_emitter_emit_flow_mapping_key(emitter, event, true) + + case yaml_EMIT_FLOW_MAPPING_KEY_STATE: + return yaml_emitter_emit_flow_mapping_key(emitter, event, false) + + case yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE: + return yaml_emitter_emit_flow_mapping_value(emitter, event, true) + + case yaml_EMIT_FLOW_MAPPING_VALUE_STATE: + return yaml_emitter_emit_flow_mapping_value(emitter, event, false) + + case yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE: + return yaml_emitter_emit_block_sequence_item(emitter, event, true) + + case yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE: + return yaml_emitter_emit_block_sequence_item(emitter, event, false) + + case yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE: + return yaml_emitter_emit_block_mapping_key(emitter, event, true) + + case yaml_EMIT_BLOCK_MAPPING_KEY_STATE: + return yaml_emitter_emit_block_mapping_key(emitter, event, false) + + case yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE: + return yaml_emitter_emit_block_mapping_value(emitter, event, true) + + case yaml_EMIT_BLOCK_MAPPING_VALUE_STATE: + return yaml_emitter_emit_block_mapping_value(emitter, event, false) + + case yaml_EMIT_END_STATE: + return yaml_emitter_set_emitter_error(emitter, "expected nothing after STREAM-END") + } + panic("invalid emitter state") +} + +// Expect STREAM-START. +func yaml_emitter_emit_stream_start(emitter *yaml_emitter_t, event *yaml_event_t) bool { + if event.typ != yaml_STREAM_START_EVENT { + return yaml_emitter_set_emitter_error(emitter, "expected STREAM-START") + } + if emitter.encoding == yaml_ANY_ENCODING { + emitter.encoding = event.encoding + if emitter.encoding == yaml_ANY_ENCODING { + emitter.encoding = yaml_UTF8_ENCODING + } + } + if emitter.best_indent < 2 || emitter.best_indent > 9 { + emitter.best_indent = 2 + } + if emitter.best_width >= 0 && emitter.best_width <= emitter.best_indent*2 { + emitter.best_width = 80 + } + if emitter.best_width < 0 { + emitter.best_width = 1<<31 - 1 + } + if emitter.line_break == yaml_ANY_BREAK { + emitter.line_break = yaml_LN_BREAK + } + + emitter.indent = -1 + emitter.line = 0 + emitter.column = 0 + emitter.whitespace = true + emitter.indention = true + + if emitter.encoding != yaml_UTF8_ENCODING { + if !yaml_emitter_write_bom(emitter) { + return false + } + } + emitter.state = yaml_EMIT_FIRST_DOCUMENT_START_STATE + return true +} + +// Expect DOCUMENT-START or STREAM-END. +func yaml_emitter_emit_document_start(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool { + + if event.typ == yaml_DOCUMENT_START_EVENT { + + if event.version_directive != nil { + if !yaml_emitter_analyze_version_directive(emitter, event.version_directive) { + return false + } + } + + for i := 0; i < len(event.tag_directives); i++ { + tag_directive := &event.tag_directives[i] + if !yaml_emitter_analyze_tag_directive(emitter, tag_directive) { + return false + } + if !yaml_emitter_append_tag_directive(emitter, tag_directive, false) { + return false + } + } + + for i := 0; i < len(default_tag_directives); i++ { + tag_directive := &default_tag_directives[i] + if !yaml_emitter_append_tag_directive(emitter, tag_directive, true) { + return false + } + } + + implicit := event.implicit + if !first || emitter.canonical { + implicit = false + } + + if emitter.open_ended && (event.version_directive != nil || len(event.tag_directives) > 0) { + if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) { + return false + } + if !yaml_emitter_write_indent(emitter) { + return false + } + } + + if event.version_directive != nil { + implicit = false + if !yaml_emitter_write_indicator(emitter, []byte("%YAML"), true, false, false) { + return false + } + if !yaml_emitter_write_indicator(emitter, []byte("1.1"), true, false, false) { + return false + } + if !yaml_emitter_write_indent(emitter) { + return false + } + } + + if len(event.tag_directives) > 0 { + implicit = false + for i := 0; i < len(event.tag_directives); i++ { + tag_directive := &event.tag_directives[i] + if !yaml_emitter_write_indicator(emitter, []byte("%TAG"), true, false, false) { + return false + } + if !yaml_emitter_write_tag_handle(emitter, tag_directive.handle) { + return false + } + if !yaml_emitter_write_tag_content(emitter, tag_directive.prefix, true) { + return false + } + if !yaml_emitter_write_indent(emitter) { + return false + } + } + } + + if yaml_emitter_check_empty_document(emitter) { + implicit = false + } + if !implicit { + if !yaml_emitter_write_indent(emitter) { + return false + } + if !yaml_emitter_write_indicator(emitter, []byte("---"), true, false, false) { + return false + } + if emitter.canonical { + if !yaml_emitter_write_indent(emitter) { + return false + } + } + } + + emitter.state = yaml_EMIT_DOCUMENT_CONTENT_STATE + return true + } + + if event.typ == yaml_STREAM_END_EVENT { + if emitter.open_ended { + if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) { + return false + } + if !yaml_emitter_write_indent(emitter) { + return false + } + } + if !yaml_emitter_flush(emitter) { + return false + } + emitter.state = yaml_EMIT_END_STATE + return true + } + + return yaml_emitter_set_emitter_error(emitter, "expected DOCUMENT-START or STREAM-END") +} + +// Expect the root node. +func yaml_emitter_emit_document_content(emitter *yaml_emitter_t, event *yaml_event_t) bool { + emitter.states = append(emitter.states, yaml_EMIT_DOCUMENT_END_STATE) + return yaml_emitter_emit_node(emitter, event, true, false, false, false) +} + +// Expect DOCUMENT-END. +func yaml_emitter_emit_document_end(emitter *yaml_emitter_t, event *yaml_event_t) bool { + if event.typ != yaml_DOCUMENT_END_EVENT { + return yaml_emitter_set_emitter_error(emitter, "expected DOCUMENT-END") + } + if !yaml_emitter_write_indent(emitter) { + return false + } + if !event.implicit { + // [Go] Allocate the slice elsewhere. + if !yaml_emitter_write_indicator(emitter, []byte("..."), true, false, false) { + return false + } + if !yaml_emitter_write_indent(emitter) { + return false + } + } + if !yaml_emitter_flush(emitter) { + return false + } + emitter.state = yaml_EMIT_DOCUMENT_START_STATE + emitter.tag_directives = emitter.tag_directives[:0] + return true +} + +// Expect a flow item node. +func yaml_emitter_emit_flow_sequence_item(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool { + if first { + if !yaml_emitter_write_indicator(emitter, []byte{'['}, true, true, false) { + return false + } + if !yaml_emitter_increase_indent(emitter, true, false) { + return false + } + emitter.flow_level++ + } + + if event.typ == yaml_SEQUENCE_END_EVENT { + emitter.flow_level-- + emitter.indent = emitter.indents[len(emitter.indents)-1] + emitter.indents = emitter.indents[:len(emitter.indents)-1] + if emitter.canonical && !first { + if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) { + return false + } + if !yaml_emitter_write_indent(emitter) { + return false + } + } + if !yaml_emitter_write_indicator(emitter, []byte{']'}, false, false, false) { + return false + } + emitter.state = emitter.states[len(emitter.states)-1] + emitter.states = emitter.states[:len(emitter.states)-1] + + return true + } + + if !first { + if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) { + return false + } + } + + if emitter.canonical || emitter.column > emitter.best_width { + if !yaml_emitter_write_indent(emitter) { + return false + } + } + emitter.states = append(emitter.states, yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE) + return yaml_emitter_emit_node(emitter, event, false, true, false, false) +} + +// Expect a flow key node. +func yaml_emitter_emit_flow_mapping_key(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool { + if first { + if !yaml_emitter_write_indicator(emitter, []byte{'{'}, true, true, false) { + return false + } + if !yaml_emitter_increase_indent(emitter, true, false) { + return false + } + emitter.flow_level++ + } + + if event.typ == yaml_MAPPING_END_EVENT { + emitter.flow_level-- + emitter.indent = emitter.indents[len(emitter.indents)-1] + emitter.indents = emitter.indents[:len(emitter.indents)-1] + if emitter.canonical && !first { + if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) { + return false + } + if !yaml_emitter_write_indent(emitter) { + return false + } + } + if !yaml_emitter_write_indicator(emitter, []byte{'}'}, false, false, false) { + return false + } + emitter.state = emitter.states[len(emitter.states)-1] + emitter.states = emitter.states[:len(emitter.states)-1] + return true + } + + if !first { + if !yaml_emitter_write_indicator(emitter, []byte{','}, false, false, false) { + return false + } + } + if emitter.canonical || emitter.column > emitter.best_width { + if !yaml_emitter_write_indent(emitter) { + return false + } + } + + if !emitter.canonical && yaml_emitter_check_simple_key(emitter) { + emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE) + return yaml_emitter_emit_node(emitter, event, false, false, true, true) + } + if !yaml_emitter_write_indicator(emitter, []byte{'?'}, true, false, false) { + return false + } + emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_VALUE_STATE) + return yaml_emitter_emit_node(emitter, event, false, false, true, false) +} + +// Expect a flow value node. +func yaml_emitter_emit_flow_mapping_value(emitter *yaml_emitter_t, event *yaml_event_t, simple bool) bool { + if simple { + if !yaml_emitter_write_indicator(emitter, []byte{':'}, false, false, false) { + return false + } + } else { + if emitter.canonical || emitter.column > emitter.best_width { + if !yaml_emitter_write_indent(emitter) { + return false + } + } + if !yaml_emitter_write_indicator(emitter, []byte{':'}, true, false, false) { + return false + } + } + emitter.states = append(emitter.states, yaml_EMIT_FLOW_MAPPING_KEY_STATE) + return yaml_emitter_emit_node(emitter, event, false, false, true, false) +} + +// Expect a block item node. +func yaml_emitter_emit_block_sequence_item(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool { + if first { + if !yaml_emitter_increase_indent(emitter, false, emitter.mapping_context && !emitter.indention) { + return false + } + } + if event.typ == yaml_SEQUENCE_END_EVENT { + emitter.indent = emitter.indents[len(emitter.indents)-1] + emitter.indents = emitter.indents[:len(emitter.indents)-1] + emitter.state = emitter.states[len(emitter.states)-1] + emitter.states = emitter.states[:len(emitter.states)-1] + return true + } + if !yaml_emitter_write_indent(emitter) { + return false + } + if !yaml_emitter_write_indicator(emitter, []byte{'-'}, true, false, true) { + return false + } + emitter.states = append(emitter.states, yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE) + return yaml_emitter_emit_node(emitter, event, false, true, false, false) +} + +// Expect a block key node. +func yaml_emitter_emit_block_mapping_key(emitter *yaml_emitter_t, event *yaml_event_t, first bool) bool { + if first { + if !yaml_emitter_increase_indent(emitter, false, false) { + return false + } + } + if event.typ == yaml_MAPPING_END_EVENT { + emitter.indent = emitter.indents[len(emitter.indents)-1] + emitter.indents = emitter.indents[:len(emitter.indents)-1] + emitter.state = emitter.states[len(emitter.states)-1] + emitter.states = emitter.states[:len(emitter.states)-1] + return true + } + if !yaml_emitter_write_indent(emitter) { + return false + } + if yaml_emitter_check_simple_key(emitter) { + emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE) + return yaml_emitter_emit_node(emitter, event, false, false, true, true) + } + if !yaml_emitter_write_indicator(emitter, []byte{'?'}, true, false, true) { + return false + } + emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_VALUE_STATE) + return yaml_emitter_emit_node(emitter, event, false, false, true, false) +} + +// Expect a block value node. +func yaml_emitter_emit_block_mapping_value(emitter *yaml_emitter_t, event *yaml_event_t, simple bool) bool { + if simple { + if !yaml_emitter_write_indicator(emitter, []byte{':'}, false, false, false) { + return false + } + } else { + if !yaml_emitter_write_indent(emitter) { + return false + } + if !yaml_emitter_write_indicator(emitter, []byte{':'}, true, false, true) { + return false + } + } + emitter.states = append(emitter.states, yaml_EMIT_BLOCK_MAPPING_KEY_STATE) + return yaml_emitter_emit_node(emitter, event, false, false, true, false) +} + +// Expect a node. +func yaml_emitter_emit_node(emitter *yaml_emitter_t, event *yaml_event_t, + root bool, sequence bool, mapping bool, simple_key bool) bool { + + emitter.root_context = root + emitter.sequence_context = sequence + emitter.mapping_context = mapping + emitter.simple_key_context = simple_key + + switch event.typ { + case yaml_ALIAS_EVENT: + return yaml_emitter_emit_alias(emitter, event) + case yaml_SCALAR_EVENT: + return yaml_emitter_emit_scalar(emitter, event) + case yaml_SEQUENCE_START_EVENT: + return yaml_emitter_emit_sequence_start(emitter, event) + case yaml_MAPPING_START_EVENT: + return yaml_emitter_emit_mapping_start(emitter, event) + default: + return yaml_emitter_set_emitter_error(emitter, + fmt.Sprintf("expected SCALAR, SEQUENCE-START, MAPPING-START, or ALIAS, but got %v", event.typ)) + } +} + +// Expect ALIAS. +func yaml_emitter_emit_alias(emitter *yaml_emitter_t, event *yaml_event_t) bool { + if !yaml_emitter_process_anchor(emitter) { + return false + } + emitter.state = emitter.states[len(emitter.states)-1] + emitter.states = emitter.states[:len(emitter.states)-1] + return true +} + +// Expect SCALAR. +func yaml_emitter_emit_scalar(emitter *yaml_emitter_t, event *yaml_event_t) bool { + if !yaml_emitter_select_scalar_style(emitter, event) { + return false + } + if !yaml_emitter_process_anchor(emitter) { + return false + } + if !yaml_emitter_process_tag(emitter) { + return false + } + if !yaml_emitter_increase_indent(emitter, true, false) { + return false + } + if !yaml_emitter_process_scalar(emitter) { + return false + } + emitter.indent = emitter.indents[len(emitter.indents)-1] + emitter.indents = emitter.indents[:len(emitter.indents)-1] + emitter.state = emitter.states[len(emitter.states)-1] + emitter.states = emitter.states[:len(emitter.states)-1] + return true +} + +// Expect SEQUENCE-START. +func yaml_emitter_emit_sequence_start(emitter *yaml_emitter_t, event *yaml_event_t) bool { + if !yaml_emitter_process_anchor(emitter) { + return false + } + if !yaml_emitter_process_tag(emitter) { + return false + } + if emitter.flow_level > 0 || emitter.canonical || event.sequence_style() == yaml_FLOW_SEQUENCE_STYLE || + yaml_emitter_check_empty_sequence(emitter) { + emitter.state = yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE + } else { + emitter.state = yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE + } + return true +} + +// Expect MAPPING-START. +func yaml_emitter_emit_mapping_start(emitter *yaml_emitter_t, event *yaml_event_t) bool { + if !yaml_emitter_process_anchor(emitter) { + return false + } + if !yaml_emitter_process_tag(emitter) { + return false + } + if emitter.flow_level > 0 || emitter.canonical || event.mapping_style() == yaml_FLOW_MAPPING_STYLE || + yaml_emitter_check_empty_mapping(emitter) { + emitter.state = yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE + } else { + emitter.state = yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE + } + return true +} + +// Check if the document content is an empty scalar. +func yaml_emitter_check_empty_document(emitter *yaml_emitter_t) bool { + return false // [Go] Huh? +} + +// Check if the next events represent an empty sequence. +func yaml_emitter_check_empty_sequence(emitter *yaml_emitter_t) bool { + if len(emitter.events)-emitter.events_head < 2 { + return false + } + return emitter.events[emitter.events_head].typ == yaml_SEQUENCE_START_EVENT && + emitter.events[emitter.events_head+1].typ == yaml_SEQUENCE_END_EVENT +} + +// Check if the next events represent an empty mapping. +func yaml_emitter_check_empty_mapping(emitter *yaml_emitter_t) bool { + if len(emitter.events)-emitter.events_head < 2 { + return false + } + return emitter.events[emitter.events_head].typ == yaml_MAPPING_START_EVENT && + emitter.events[emitter.events_head+1].typ == yaml_MAPPING_END_EVENT +} + +// Check if the next node can be expressed as a simple key. +func yaml_emitter_check_simple_key(emitter *yaml_emitter_t) bool { + length := 0 + switch emitter.events[emitter.events_head].typ { + case yaml_ALIAS_EVENT: + length += len(emitter.anchor_data.anchor) + case yaml_SCALAR_EVENT: + if emitter.scalar_data.multiline { + return false + } + length += len(emitter.anchor_data.anchor) + + len(emitter.tag_data.handle) + + len(emitter.tag_data.suffix) + + len(emitter.scalar_data.value) + case yaml_SEQUENCE_START_EVENT: + if !yaml_emitter_check_empty_sequence(emitter) { + return false + } + length += len(emitter.anchor_data.anchor) + + len(emitter.tag_data.handle) + + len(emitter.tag_data.suffix) + case yaml_MAPPING_START_EVENT: + if !yaml_emitter_check_empty_mapping(emitter) { + return false + } + length += len(emitter.anchor_data.anchor) + + len(emitter.tag_data.handle) + + len(emitter.tag_data.suffix) + default: + return false + } + return length <= 128 +} + +// Determine an acceptable scalar style. +func yaml_emitter_select_scalar_style(emitter *yaml_emitter_t, event *yaml_event_t) bool { + + no_tag := len(emitter.tag_data.handle) == 0 && len(emitter.tag_data.suffix) == 0 + if no_tag && !event.implicit && !event.quoted_implicit { + return yaml_emitter_set_emitter_error(emitter, "neither tag nor implicit flags are specified") + } + + style := event.scalar_style() + if style == yaml_ANY_SCALAR_STYLE { + style = yaml_PLAIN_SCALAR_STYLE + } + if emitter.canonical { + style = yaml_DOUBLE_QUOTED_SCALAR_STYLE + } + if emitter.simple_key_context && emitter.scalar_data.multiline { + style = yaml_DOUBLE_QUOTED_SCALAR_STYLE + } + + if style == yaml_PLAIN_SCALAR_STYLE { + if emitter.flow_level > 0 && !emitter.scalar_data.flow_plain_allowed || + emitter.flow_level == 0 && !emitter.scalar_data.block_plain_allowed { + style = yaml_SINGLE_QUOTED_SCALAR_STYLE + } + if len(emitter.scalar_data.value) == 0 && (emitter.flow_level > 0 || emitter.simple_key_context) { + style = yaml_SINGLE_QUOTED_SCALAR_STYLE + } + if no_tag && !event.implicit { + style = yaml_SINGLE_QUOTED_SCALAR_STYLE + } + } + if style == yaml_SINGLE_QUOTED_SCALAR_STYLE { + if !emitter.scalar_data.single_quoted_allowed { + style = yaml_DOUBLE_QUOTED_SCALAR_STYLE + } + } + if style == yaml_LITERAL_SCALAR_STYLE || style == yaml_FOLDED_SCALAR_STYLE { + if !emitter.scalar_data.block_allowed || emitter.flow_level > 0 || emitter.simple_key_context { + style = yaml_DOUBLE_QUOTED_SCALAR_STYLE + } + } + + if no_tag && !event.quoted_implicit && style != yaml_PLAIN_SCALAR_STYLE { + emitter.tag_data.handle = []byte{'!'} + } + emitter.scalar_data.style = style + return true +} + +// Write an anchor. +func yaml_emitter_process_anchor(emitter *yaml_emitter_t) bool { + if emitter.anchor_data.anchor == nil { + return true + } + c := []byte{'&'} + if emitter.anchor_data.alias { + c[0] = '*' + } + if !yaml_emitter_write_indicator(emitter, c, true, false, false) { + return false + } + return yaml_emitter_write_anchor(emitter, emitter.anchor_data.anchor) +} + +// Write a tag. +func yaml_emitter_process_tag(emitter *yaml_emitter_t) bool { + if len(emitter.tag_data.handle) == 0 && len(emitter.tag_data.suffix) == 0 { + return true + } + if len(emitter.tag_data.handle) > 0 { + if !yaml_emitter_write_tag_handle(emitter, emitter.tag_data.handle) { + return false + } + if len(emitter.tag_data.suffix) > 0 { + if !yaml_emitter_write_tag_content(emitter, emitter.tag_data.suffix, false) { + return false + } + } + } else { + // [Go] Allocate these slices elsewhere. + if !yaml_emitter_write_indicator(emitter, []byte("!<"), true, false, false) { + return false + } + if !yaml_emitter_write_tag_content(emitter, emitter.tag_data.suffix, false) { + return false + } + if !yaml_emitter_write_indicator(emitter, []byte{'>'}, false, false, false) { + return false + } + } + return true +} + +// Write a scalar. +func yaml_emitter_process_scalar(emitter *yaml_emitter_t) bool { + switch emitter.scalar_data.style { + case yaml_PLAIN_SCALAR_STYLE: + return yaml_emitter_write_plain_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context) + + case yaml_SINGLE_QUOTED_SCALAR_STYLE: + return yaml_emitter_write_single_quoted_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context) + + case yaml_DOUBLE_QUOTED_SCALAR_STYLE: + return yaml_emitter_write_double_quoted_scalar(emitter, emitter.scalar_data.value, !emitter.simple_key_context) + + case yaml_LITERAL_SCALAR_STYLE: + return yaml_emitter_write_literal_scalar(emitter, emitter.scalar_data.value) + + case yaml_FOLDED_SCALAR_STYLE: + return yaml_emitter_write_folded_scalar(emitter, emitter.scalar_data.value) + } + panic("unknown scalar style") +} + +// Check if a %YAML directive is valid. +func yaml_emitter_analyze_version_directive(emitter *yaml_emitter_t, version_directive *yaml_version_directive_t) bool { + if version_directive.major != 1 || version_directive.minor != 1 { + return yaml_emitter_set_emitter_error(emitter, "incompatible %YAML directive") + } + return true +} + +// Check if a %TAG directive is valid. +func yaml_emitter_analyze_tag_directive(emitter *yaml_emitter_t, tag_directive *yaml_tag_directive_t) bool { + handle := tag_directive.handle + prefix := tag_directive.prefix + if len(handle) == 0 { + return yaml_emitter_set_emitter_error(emitter, "tag handle must not be empty") + } + if handle[0] != '!' { + return yaml_emitter_set_emitter_error(emitter, "tag handle must start with '!'") + } + if handle[len(handle)-1] != '!' { + return yaml_emitter_set_emitter_error(emitter, "tag handle must end with '!'") + } + for i := 1; i < len(handle)-1; i += width(handle[i]) { + if !is_alpha(handle, i) { + return yaml_emitter_set_emitter_error(emitter, "tag handle must contain alphanumerical characters only") + } + } + if len(prefix) == 0 { + return yaml_emitter_set_emitter_error(emitter, "tag prefix must not be empty") + } + return true +} + +// Check if an anchor is valid. +func yaml_emitter_analyze_anchor(emitter *yaml_emitter_t, anchor []byte, alias bool) bool { + if len(anchor) == 0 { + problem := "anchor value must not be empty" + if alias { + problem = "alias value must not be empty" + } + return yaml_emitter_set_emitter_error(emitter, problem) + } + for i := 0; i < len(anchor); i += width(anchor[i]) { + if !is_alpha(anchor, i) { + problem := "anchor value must contain alphanumerical characters only" + if alias { + problem = "alias value must contain alphanumerical characters only" + } + return yaml_emitter_set_emitter_error(emitter, problem) + } + } + emitter.anchor_data.anchor = anchor + emitter.anchor_data.alias = alias + return true +} + +// Check if a tag is valid. +func yaml_emitter_analyze_tag(emitter *yaml_emitter_t, tag []byte) bool { + if len(tag) == 0 { + return yaml_emitter_set_emitter_error(emitter, "tag value must not be empty") + } + for i := 0; i < len(emitter.tag_directives); i++ { + tag_directive := &emitter.tag_directives[i] + if bytes.HasPrefix(tag, tag_directive.prefix) { + emitter.tag_data.handle = tag_directive.handle + emitter.tag_data.suffix = tag[len(tag_directive.prefix):] + return true + } + } + emitter.tag_data.suffix = tag + return true +} + +// Check if a scalar is valid. +func yaml_emitter_analyze_scalar(emitter *yaml_emitter_t, value []byte) bool { + var ( + block_indicators = false + flow_indicators = false + line_breaks = false + special_characters = false + + leading_space = false + leading_break = false + trailing_space = false + trailing_break = false + break_space = false + space_break = false + + preceded_by_whitespace = false + followed_by_whitespace = false + previous_space = false + previous_break = false + ) + + emitter.scalar_data.value = value + + if len(value) == 0 { + emitter.scalar_data.multiline = false + emitter.scalar_data.flow_plain_allowed = false + emitter.scalar_data.block_plain_allowed = true + emitter.scalar_data.single_quoted_allowed = true + emitter.scalar_data.block_allowed = false + return true + } + + if len(value) >= 3 && ((value[0] == '-' && value[1] == '-' && value[2] == '-') || (value[0] == '.' && value[1] == '.' && value[2] == '.')) { + block_indicators = true + flow_indicators = true + } + + preceded_by_whitespace = true + for i, w := 0, 0; i < len(value); i += w { + w = width(value[i]) + followed_by_whitespace = i+w >= len(value) || is_blank(value, i+w) + + if i == 0 { + switch value[i] { + case '#', ',', '[', ']', '{', '}', '&', '*', '!', '|', '>', '\'', '"', '%', '@', '`': + flow_indicators = true + block_indicators = true + case '?', ':': + flow_indicators = true + if followed_by_whitespace { + block_indicators = true + } + case '-': + if followed_by_whitespace { + flow_indicators = true + block_indicators = true + } + } + } else { + switch value[i] { + case ',', '?', '[', ']', '{', '}': + flow_indicators = true + case ':': + flow_indicators = true + if followed_by_whitespace { + block_indicators = true + } + case '#': + if preceded_by_whitespace { + flow_indicators = true + block_indicators = true + } + } + } + + if !is_printable(value, i) || !is_ascii(value, i) && !emitter.unicode { + special_characters = true + } + if is_space(value, i) { + if i == 0 { + leading_space = true + } + if i+width(value[i]) == len(value) { + trailing_space = true + } + if previous_break { + break_space = true + } + previous_space = true + previous_break = false + } else if is_break(value, i) { + line_breaks = true + if i == 0 { + leading_break = true + } + if i+width(value[i]) == len(value) { + trailing_break = true + } + if previous_space { + space_break = true + } + previous_space = false + previous_break = true + } else { + previous_space = false + previous_break = false + } + + // [Go]: Why 'z'? Couldn't be the end of the string as that's the loop condition. + preceded_by_whitespace = is_blankz(value, i) + } + + emitter.scalar_data.multiline = line_breaks + emitter.scalar_data.flow_plain_allowed = true + emitter.scalar_data.block_plain_allowed = true + emitter.scalar_data.single_quoted_allowed = true + emitter.scalar_data.block_allowed = true + + if leading_space || leading_break || trailing_space || trailing_break { + emitter.scalar_data.flow_plain_allowed = false + emitter.scalar_data.block_plain_allowed = false + } + if trailing_space { + emitter.scalar_data.block_allowed = false + } + if break_space { + emitter.scalar_data.flow_plain_allowed = false + emitter.scalar_data.block_plain_allowed = false + emitter.scalar_data.single_quoted_allowed = false + } + if space_break || special_characters { + emitter.scalar_data.flow_plain_allowed = false + emitter.scalar_data.block_plain_allowed = false + emitter.scalar_data.single_quoted_allowed = false + emitter.scalar_data.block_allowed = false + } + if line_breaks { + emitter.scalar_data.flow_plain_allowed = false + emitter.scalar_data.block_plain_allowed = false + } + if flow_indicators { + emitter.scalar_data.flow_plain_allowed = false + } + if block_indicators { + emitter.scalar_data.block_plain_allowed = false + } + return true +} + +// Check if the event data is valid. +func yaml_emitter_analyze_event(emitter *yaml_emitter_t, event *yaml_event_t) bool { + + emitter.anchor_data.anchor = nil + emitter.tag_data.handle = nil + emitter.tag_data.suffix = nil + emitter.scalar_data.value = nil + + switch event.typ { + case yaml_ALIAS_EVENT: + if !yaml_emitter_analyze_anchor(emitter, event.anchor, true) { + return false + } + + case yaml_SCALAR_EVENT: + if len(event.anchor) > 0 { + if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) { + return false + } + } + if len(event.tag) > 0 && (emitter.canonical || (!event.implicit && !event.quoted_implicit)) { + if !yaml_emitter_analyze_tag(emitter, event.tag) { + return false + } + } + if !yaml_emitter_analyze_scalar(emitter, event.value) { + return false + } + + case yaml_SEQUENCE_START_EVENT: + if len(event.anchor) > 0 { + if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) { + return false + } + } + if len(event.tag) > 0 && (emitter.canonical || !event.implicit) { + if !yaml_emitter_analyze_tag(emitter, event.tag) { + return false + } + } + + case yaml_MAPPING_START_EVENT: + if len(event.anchor) > 0 { + if !yaml_emitter_analyze_anchor(emitter, event.anchor, false) { + return false + } + } + if len(event.tag) > 0 && (emitter.canonical || !event.implicit) { + if !yaml_emitter_analyze_tag(emitter, event.tag) { + return false + } + } + } + return true +} + +// Write the BOM character. +func yaml_emitter_write_bom(emitter *yaml_emitter_t) bool { + if !flush(emitter) { + return false + } + pos := emitter.buffer_pos + emitter.buffer[pos+0] = '\xEF' + emitter.buffer[pos+1] = '\xBB' + emitter.buffer[pos+2] = '\xBF' + emitter.buffer_pos += 3 + return true +} + +func yaml_emitter_write_indent(emitter *yaml_emitter_t) bool { + indent := emitter.indent + if indent < 0 { + indent = 0 + } + if !emitter.indention || emitter.column > indent || (emitter.column == indent && !emitter.whitespace) { + if !put_break(emitter) { + return false + } + } + for emitter.column < indent { + if !put(emitter, ' ') { + return false + } + } + emitter.whitespace = true + emitter.indention = true + return true +} + +func yaml_emitter_write_indicator(emitter *yaml_emitter_t, indicator []byte, need_whitespace, is_whitespace, is_indention bool) bool { + if need_whitespace && !emitter.whitespace { + if !put(emitter, ' ') { + return false + } + } + if !write_all(emitter, indicator) { + return false + } + emitter.whitespace = is_whitespace + emitter.indention = (emitter.indention && is_indention) + emitter.open_ended = false + return true +} + +func yaml_emitter_write_anchor(emitter *yaml_emitter_t, value []byte) bool { + if !write_all(emitter, value) { + return false + } + emitter.whitespace = false + emitter.indention = false + return true +} + +func yaml_emitter_write_tag_handle(emitter *yaml_emitter_t, value []byte) bool { + if !emitter.whitespace { + if !put(emitter, ' ') { + return false + } + } + if !write_all(emitter, value) { + return false + } + emitter.whitespace = false + emitter.indention = false + return true +} + +func yaml_emitter_write_tag_content(emitter *yaml_emitter_t, value []byte, need_whitespace bool) bool { + if need_whitespace && !emitter.whitespace { + if !put(emitter, ' ') { + return false + } + } + for i := 0; i < len(value); { + var must_write bool + switch value[i] { + case ';', '/', '?', ':', '@', '&', '=', '+', '$', ',', '_', '.', '~', '*', '\'', '(', ')', '[', ']': + must_write = true + default: + must_write = is_alpha(value, i) + } + if must_write { + if !write(emitter, value, &i) { + return false + } + } else { + w := width(value[i]) + for k := 0; k < w; k++ { + octet := value[i] + i++ + if !put(emitter, '%') { + return false + } + + c := octet >> 4 + if c < 10 { + c += '0' + } else { + c += 'A' - 10 + } + if !put(emitter, c) { + return false + } + + c = octet & 0x0f + if c < 10 { + c += '0' + } else { + c += 'A' - 10 + } + if !put(emitter, c) { + return false + } + } + } + } + emitter.whitespace = false + emitter.indention = false + return true +} + +func yaml_emitter_write_plain_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool { + if !emitter.whitespace { + if !put(emitter, ' ') { + return false + } + } + + spaces := false + breaks := false + for i := 0; i < len(value); { + if is_space(value, i) { + if allow_breaks && !spaces && emitter.column > emitter.best_width && !is_space(value, i+1) { + if !yaml_emitter_write_indent(emitter) { + return false + } + i += width(value[i]) + } else { + if !write(emitter, value, &i) { + return false + } + } + spaces = true + } else if is_break(value, i) { + if !breaks && value[i] == '\n' { + if !put_break(emitter) { + return false + } + } + if !write_break(emitter, value, &i) { + return false + } + emitter.indention = true + breaks = true + } else { + if breaks { + if !yaml_emitter_write_indent(emitter) { + return false + } + } + if !write(emitter, value, &i) { + return false + } + emitter.indention = false + spaces = false + breaks = false + } + } + + emitter.whitespace = false + emitter.indention = false + if emitter.root_context { + emitter.open_ended = true + } + + return true +} + +func yaml_emitter_write_single_quoted_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool { + + if !yaml_emitter_write_indicator(emitter, []byte{'\''}, true, false, false) { + return false + } + + spaces := false + breaks := false + for i := 0; i < len(value); { + if is_space(value, i) { + if allow_breaks && !spaces && emitter.column > emitter.best_width && i > 0 && i < len(value)-1 && !is_space(value, i+1) { + if !yaml_emitter_write_indent(emitter) { + return false + } + i += width(value[i]) + } else { + if !write(emitter, value, &i) { + return false + } + } + spaces = true + } else if is_break(value, i) { + if !breaks && value[i] == '\n' { + if !put_break(emitter) { + return false + } + } + if !write_break(emitter, value, &i) { + return false + } + emitter.indention = true + breaks = true + } else { + if breaks { + if !yaml_emitter_write_indent(emitter) { + return false + } + } + if value[i] == '\'' { + if !put(emitter, '\'') { + return false + } + } + if !write(emitter, value, &i) { + return false + } + emitter.indention = false + spaces = false + breaks = false + } + } + if !yaml_emitter_write_indicator(emitter, []byte{'\''}, false, false, false) { + return false + } + emitter.whitespace = false + emitter.indention = false + return true +} + +func yaml_emitter_write_double_quoted_scalar(emitter *yaml_emitter_t, value []byte, allow_breaks bool) bool { + spaces := false + if !yaml_emitter_write_indicator(emitter, []byte{'"'}, true, false, false) { + return false + } + + for i := 0; i < len(value); { + if !is_printable(value, i) || (!emitter.unicode && !is_ascii(value, i)) || + is_bom(value, i) || is_break(value, i) || + value[i] == '"' || value[i] == '\\' { + + octet := value[i] + + var w int + var v rune + switch { + case octet&0x80 == 0x00: + w, v = 1, rune(octet&0x7F) + case octet&0xE0 == 0xC0: + w, v = 2, rune(octet&0x1F) + case octet&0xF0 == 0xE0: + w, v = 3, rune(octet&0x0F) + case octet&0xF8 == 0xF0: + w, v = 4, rune(octet&0x07) + } + for k := 1; k < w; k++ { + octet = value[i+k] + v = (v << 6) + (rune(octet) & 0x3F) + } + i += w + + if !put(emitter, '\\') { + return false + } + + var ok bool + switch v { + case 0x00: + ok = put(emitter, '0') + case 0x07: + ok = put(emitter, 'a') + case 0x08: + ok = put(emitter, 'b') + case 0x09: + ok = put(emitter, 't') + case 0x0A: + ok = put(emitter, 'n') + case 0x0b: + ok = put(emitter, 'v') + case 0x0c: + ok = put(emitter, 'f') + case 0x0d: + ok = put(emitter, 'r') + case 0x1b: + ok = put(emitter, 'e') + case 0x22: + ok = put(emitter, '"') + case 0x5c: + ok = put(emitter, '\\') + case 0x85: + ok = put(emitter, 'N') + case 0xA0: + ok = put(emitter, '_') + case 0x2028: + ok = put(emitter, 'L') + case 0x2029: + ok = put(emitter, 'P') + default: + if v <= 0xFF { + ok = put(emitter, 'x') + w = 2 + } else if v <= 0xFFFF { + ok = put(emitter, 'u') + w = 4 + } else { + ok = put(emitter, 'U') + w = 8 + } + for k := (w - 1) * 4; ok && k >= 0; k -= 4 { + digit := byte((v >> uint(k)) & 0x0F) + if digit < 10 { + ok = put(emitter, digit+'0') + } else { + ok = put(emitter, digit+'A'-10) + } + } + } + if !ok { + return false + } + spaces = false + } else if is_space(value, i) { + if allow_breaks && !spaces && emitter.column > emitter.best_width && i > 0 && i < len(value)-1 { + if !yaml_emitter_write_indent(emitter) { + return false + } + if is_space(value, i+1) { + if !put(emitter, '\\') { + return false + } + } + i += width(value[i]) + } else if !write(emitter, value, &i) { + return false + } + spaces = true + } else { + if !write(emitter, value, &i) { + return false + } + spaces = false + } + } + if !yaml_emitter_write_indicator(emitter, []byte{'"'}, false, false, false) { + return false + } + emitter.whitespace = false + emitter.indention = false + return true +} + +func yaml_emitter_write_block_scalar_hints(emitter *yaml_emitter_t, value []byte) bool { + if is_space(value, 0) || is_break(value, 0) { + indent_hint := []byte{'0' + byte(emitter.best_indent)} + if !yaml_emitter_write_indicator(emitter, indent_hint, false, false, false) { + return false + } + } + + emitter.open_ended = false + + var chomp_hint [1]byte + if len(value) == 0 { + chomp_hint[0] = '-' + } else { + i := len(value) - 1 + for value[i]&0xC0 == 0x80 { + i-- + } + if !is_break(value, i) { + chomp_hint[0] = '-' + } else if i == 0 { + chomp_hint[0] = '+' + emitter.open_ended = true + } else { + i-- + for value[i]&0xC0 == 0x80 { + i-- + } + if is_break(value, i) { + chomp_hint[0] = '+' + emitter.open_ended = true + } + } + } + if chomp_hint[0] != 0 { + if !yaml_emitter_write_indicator(emitter, chomp_hint[:], false, false, false) { + return false + } + } + return true +} + +func yaml_emitter_write_literal_scalar(emitter *yaml_emitter_t, value []byte) bool { + if !yaml_emitter_write_indicator(emitter, []byte{'|'}, true, false, false) { + return false + } + if !yaml_emitter_write_block_scalar_hints(emitter, value) { + return false + } + if !put_break(emitter) { + return false + } + emitter.indention = true + emitter.whitespace = true + breaks := true + for i := 0; i < len(value); { + if is_break(value, i) { + if !write_break(emitter, value, &i) { + return false + } + emitter.indention = true + breaks = true + } else { + if breaks { + if !yaml_emitter_write_indent(emitter) { + return false + } + } + if !write(emitter, value, &i) { + return false + } + emitter.indention = false + breaks = false + } + } + + return true +} + +func yaml_emitter_write_folded_scalar(emitter *yaml_emitter_t, value []byte) bool { + if !yaml_emitter_write_indicator(emitter, []byte{'>'}, true, false, false) { + return false + } + if !yaml_emitter_write_block_scalar_hints(emitter, value) { + return false + } + + if !put_break(emitter) { + return false + } + emitter.indention = true + emitter.whitespace = true + + breaks := true + leading_spaces := true + for i := 0; i < len(value); { + if is_break(value, i) { + if !breaks && !leading_spaces && value[i] == '\n' { + k := 0 + for is_break(value, k) { + k += width(value[k]) + } + if !is_blankz(value, k) { + if !put_break(emitter) { + return false + } + } + } + if !write_break(emitter, value, &i) { + return false + } + emitter.indention = true + breaks = true + } else { + if breaks { + if !yaml_emitter_write_indent(emitter) { + return false + } + leading_spaces = is_blank(value, i) + } + if !breaks && is_space(value, i) && !is_space(value, i+1) && emitter.column > emitter.best_width { + if !yaml_emitter_write_indent(emitter) { + return false + } + i += width(value[i]) + } else { + if !write(emitter, value, &i) { + return false + } + } + emitter.indention = false + breaks = false + } + } + return true +} diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/encode.go b/vendor/sigs.k8s.io/yaml/goyaml.v2/encode.go new file mode 100644 index 0000000000000..0ee738e11b673 --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/encode.go @@ -0,0 +1,390 @@ +package yaml + +import ( + "encoding" + "fmt" + "io" + "reflect" + "regexp" + "sort" + "strconv" + "strings" + "time" + "unicode/utf8" +) + +// jsonNumber is the interface of the encoding/json.Number datatype. +// Repeating the interface here avoids a dependency on encoding/json, and also +// supports other libraries like jsoniter, which use a similar datatype with +// the same interface. Detecting this interface is useful when dealing with +// structures containing json.Number, which is a string under the hood. The +// encoder should prefer the use of Int64(), Float64() and string(), in that +// order, when encoding this type. +type jsonNumber interface { + Float64() (float64, error) + Int64() (int64, error) + String() string +} + +type encoder struct { + emitter yaml_emitter_t + event yaml_event_t + out []byte + flow bool + // doneInit holds whether the initial stream_start_event has been + // emitted. + doneInit bool +} + +func newEncoder() *encoder { + e := &encoder{} + yaml_emitter_initialize(&e.emitter) + yaml_emitter_set_output_string(&e.emitter, &e.out) + yaml_emitter_set_unicode(&e.emitter, true) + return e +} + +func newEncoderWithWriter(w io.Writer) *encoder { + e := &encoder{} + yaml_emitter_initialize(&e.emitter) + yaml_emitter_set_output_writer(&e.emitter, w) + yaml_emitter_set_unicode(&e.emitter, true) + return e +} + +func (e *encoder) init() { + if e.doneInit { + return + } + yaml_stream_start_event_initialize(&e.event, yaml_UTF8_ENCODING) + e.emit() + e.doneInit = true +} + +func (e *encoder) finish() { + e.emitter.open_ended = false + yaml_stream_end_event_initialize(&e.event) + e.emit() +} + +func (e *encoder) destroy() { + yaml_emitter_delete(&e.emitter) +} + +func (e *encoder) emit() { + // This will internally delete the e.event value. + e.must(yaml_emitter_emit(&e.emitter, &e.event)) +} + +func (e *encoder) must(ok bool) { + if !ok { + msg := e.emitter.problem + if msg == "" { + msg = "unknown problem generating YAML content" + } + failf("%s", msg) + } +} + +func (e *encoder) marshalDoc(tag string, in reflect.Value) { + e.init() + yaml_document_start_event_initialize(&e.event, nil, nil, true) + e.emit() + e.marshal(tag, in) + yaml_document_end_event_initialize(&e.event, true) + e.emit() +} + +func (e *encoder) marshal(tag string, in reflect.Value) { + if !in.IsValid() || in.Kind() == reflect.Ptr && in.IsNil() { + e.nilv() + return + } + iface := in.Interface() + switch m := iface.(type) { + case jsonNumber: + integer, err := m.Int64() + if err == nil { + // In this case the json.Number is a valid int64 + in = reflect.ValueOf(integer) + break + } + float, err := m.Float64() + if err == nil { + // In this case the json.Number is a valid float64 + in = reflect.ValueOf(float) + break + } + // fallback case - no number could be obtained + in = reflect.ValueOf(m.String()) + case time.Time, *time.Time: + // Although time.Time implements TextMarshaler, + // we don't want to treat it as a string for YAML + // purposes because YAML has special support for + // timestamps. + case Marshaler: + v, err := m.MarshalYAML() + if err != nil { + fail(err) + } + if v == nil { + e.nilv() + return + } + in = reflect.ValueOf(v) + case encoding.TextMarshaler: + text, err := m.MarshalText() + if err != nil { + fail(err) + } + in = reflect.ValueOf(string(text)) + case nil: + e.nilv() + return + } + switch in.Kind() { + case reflect.Interface: + e.marshal(tag, in.Elem()) + case reflect.Map: + e.mapv(tag, in) + case reflect.Ptr: + if in.Type() == ptrTimeType { + e.timev(tag, in.Elem()) + } else { + e.marshal(tag, in.Elem()) + } + case reflect.Struct: + if in.Type() == timeType { + e.timev(tag, in) + } else { + e.structv(tag, in) + } + case reflect.Slice, reflect.Array: + if in.Type().Elem() == mapItemType { + e.itemsv(tag, in) + } else { + e.slicev(tag, in) + } + case reflect.String: + e.stringv(tag, in) + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + if in.Type() == durationType { + e.stringv(tag, reflect.ValueOf(iface.(time.Duration).String())) + } else { + e.intv(tag, in) + } + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: + e.uintv(tag, in) + case reflect.Float32, reflect.Float64: + e.floatv(tag, in) + case reflect.Bool: + e.boolv(tag, in) + default: + panic("cannot marshal type: " + in.Type().String()) + } +} + +func (e *encoder) mapv(tag string, in reflect.Value) { + e.mappingv(tag, func() { + keys := keyList(in.MapKeys()) + sort.Sort(keys) + for _, k := range keys { + e.marshal("", k) + e.marshal("", in.MapIndex(k)) + } + }) +} + +func (e *encoder) itemsv(tag string, in reflect.Value) { + e.mappingv(tag, func() { + slice := in.Convert(reflect.TypeOf([]MapItem{})).Interface().([]MapItem) + for _, item := range slice { + e.marshal("", reflect.ValueOf(item.Key)) + e.marshal("", reflect.ValueOf(item.Value)) + } + }) +} + +func (e *encoder) structv(tag string, in reflect.Value) { + sinfo, err := getStructInfo(in.Type()) + if err != nil { + panic(err) + } + e.mappingv(tag, func() { + for _, info := range sinfo.FieldsList { + var value reflect.Value + if info.Inline == nil { + value = in.Field(info.Num) + } else { + value = in.FieldByIndex(info.Inline) + } + if info.OmitEmpty && isZero(value) { + continue + } + e.marshal("", reflect.ValueOf(info.Key)) + e.flow = info.Flow + e.marshal("", value) + } + if sinfo.InlineMap >= 0 { + m := in.Field(sinfo.InlineMap) + if m.Len() > 0 { + e.flow = false + keys := keyList(m.MapKeys()) + sort.Sort(keys) + for _, k := range keys { + if _, found := sinfo.FieldsMap[k.String()]; found { + panic(fmt.Sprintf("Can't have key %q in inlined map; conflicts with struct field", k.String())) + } + e.marshal("", k) + e.flow = false + e.marshal("", m.MapIndex(k)) + } + } + } + }) +} + +func (e *encoder) mappingv(tag string, f func()) { + implicit := tag == "" + style := yaml_BLOCK_MAPPING_STYLE + if e.flow { + e.flow = false + style = yaml_FLOW_MAPPING_STYLE + } + yaml_mapping_start_event_initialize(&e.event, nil, []byte(tag), implicit, style) + e.emit() + f() + yaml_mapping_end_event_initialize(&e.event) + e.emit() +} + +func (e *encoder) slicev(tag string, in reflect.Value) { + implicit := tag == "" + style := yaml_BLOCK_SEQUENCE_STYLE + if e.flow { + e.flow = false + style = yaml_FLOW_SEQUENCE_STYLE + } + e.must(yaml_sequence_start_event_initialize(&e.event, nil, []byte(tag), implicit, style)) + e.emit() + n := in.Len() + for i := 0; i < n; i++ { + e.marshal("", in.Index(i)) + } + e.must(yaml_sequence_end_event_initialize(&e.event)) + e.emit() +} + +// isBase60 returns whether s is in base 60 notation as defined in YAML 1.1. +// +// The base 60 float notation in YAML 1.1 is a terrible idea and is unsupported +// in YAML 1.2 and by this package, but these should be marshalled quoted for +// the time being for compatibility with other parsers. +func isBase60Float(s string) (result bool) { + // Fast path. + if s == "" { + return false + } + c := s[0] + if !(c == '+' || c == '-' || c >= '0' && c <= '9') || strings.IndexByte(s, ':') < 0 { + return false + } + // Do the full match. + return base60float.MatchString(s) +} + +// From http://yaml.org/type/float.html, except the regular expression there +// is bogus. In practice parsers do not enforce the "\.[0-9_]*" suffix. +var base60float = regexp.MustCompile(`^[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+(?:\.[0-9_]*)?$`) + +func (e *encoder) stringv(tag string, in reflect.Value) { + var style yaml_scalar_style_t + s := in.String() + canUsePlain := true + switch { + case !utf8.ValidString(s): + if tag == yaml_BINARY_TAG { + failf("explicitly tagged !!binary data must be base64-encoded") + } + if tag != "" { + failf("cannot marshal invalid UTF-8 data as %s", shortTag(tag)) + } + // It can't be encoded directly as YAML so use a binary tag + // and encode it as base64. + tag = yaml_BINARY_TAG + s = encodeBase64(s) + case tag == "": + // Check to see if it would resolve to a specific + // tag when encoded unquoted. If it doesn't, + // there's no need to quote it. + rtag, _ := resolve("", s) + canUsePlain = rtag == yaml_STR_TAG && !isBase60Float(s) + } + // Note: it's possible for user code to emit invalid YAML + // if they explicitly specify a tag and a string containing + // text that's incompatible with that tag. + switch { + case strings.Contains(s, "\n"): + style = yaml_LITERAL_SCALAR_STYLE + case canUsePlain: + style = yaml_PLAIN_SCALAR_STYLE + default: + style = yaml_DOUBLE_QUOTED_SCALAR_STYLE + } + e.emitScalar(s, "", tag, style) +} + +func (e *encoder) boolv(tag string, in reflect.Value) { + var s string + if in.Bool() { + s = "true" + } else { + s = "false" + } + e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE) +} + +func (e *encoder) intv(tag string, in reflect.Value) { + s := strconv.FormatInt(in.Int(), 10) + e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE) +} + +func (e *encoder) uintv(tag string, in reflect.Value) { + s := strconv.FormatUint(in.Uint(), 10) + e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE) +} + +func (e *encoder) timev(tag string, in reflect.Value) { + t := in.Interface().(time.Time) + s := t.Format(time.RFC3339Nano) + e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE) +} + +func (e *encoder) floatv(tag string, in reflect.Value) { + // Issue #352: When formatting, use the precision of the underlying value + precision := 64 + if in.Kind() == reflect.Float32 { + precision = 32 + } + + s := strconv.FormatFloat(in.Float(), 'g', -1, precision) + switch s { + case "+Inf": + s = ".inf" + case "-Inf": + s = "-.inf" + case "NaN": + s = ".nan" + } + e.emitScalar(s, "", tag, yaml_PLAIN_SCALAR_STYLE) +} + +func (e *encoder) nilv() { + e.emitScalar("null", "", "", yaml_PLAIN_SCALAR_STYLE) +} + +func (e *encoder) emitScalar(value, anchor, tag string, style yaml_scalar_style_t) { + implicit := tag == "" + e.must(yaml_scalar_event_initialize(&e.event, []byte(anchor), []byte(tag), []byte(value), implicit, implicit, style)) + e.emit() +} diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/parserc.go b/vendor/sigs.k8s.io/yaml/goyaml.v2/parserc.go new file mode 100644 index 0000000000000..81d05dfe573f9 --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/parserc.go @@ -0,0 +1,1095 @@ +package yaml + +import ( + "bytes" +) + +// The parser implements the following grammar: +// +// stream ::= STREAM-START implicit_document? explicit_document* STREAM-END +// implicit_document ::= block_node DOCUMENT-END* +// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* +// block_node_or_indentless_sequence ::= +// ALIAS +// | properties (block_content | indentless_block_sequence)? +// | block_content +// | indentless_block_sequence +// block_node ::= ALIAS +// | properties block_content? +// | block_content +// flow_node ::= ALIAS +// | properties flow_content? +// | flow_content +// properties ::= TAG ANCHOR? | ANCHOR TAG? +// block_content ::= block_collection | flow_collection | SCALAR +// flow_content ::= flow_collection | SCALAR +// block_collection ::= block_sequence | block_mapping +// flow_collection ::= flow_sequence | flow_mapping +// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END +// indentless_sequence ::= (BLOCK-ENTRY block_node?)+ +// block_mapping ::= BLOCK-MAPPING_START +// ((KEY block_node_or_indentless_sequence?)? +// (VALUE block_node_or_indentless_sequence?)?)* +// BLOCK-END +// flow_sequence ::= FLOW-SEQUENCE-START +// (flow_sequence_entry FLOW-ENTRY)* +// flow_sequence_entry? +// FLOW-SEQUENCE-END +// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? +// flow_mapping ::= FLOW-MAPPING-START +// (flow_mapping_entry FLOW-ENTRY)* +// flow_mapping_entry? +// FLOW-MAPPING-END +// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? + +// Peek the next token in the token queue. +func peek_token(parser *yaml_parser_t) *yaml_token_t { + if parser.token_available || yaml_parser_fetch_more_tokens(parser) { + return &parser.tokens[parser.tokens_head] + } + return nil +} + +// Remove the next token from the queue (must be called after peek_token). +func skip_token(parser *yaml_parser_t) { + parser.token_available = false + parser.tokens_parsed++ + parser.stream_end_produced = parser.tokens[parser.tokens_head].typ == yaml_STREAM_END_TOKEN + parser.tokens_head++ +} + +// Get the next event. +func yaml_parser_parse(parser *yaml_parser_t, event *yaml_event_t) bool { + // Erase the event object. + *event = yaml_event_t{} + + // No events after the end of the stream or error. + if parser.stream_end_produced || parser.error != yaml_NO_ERROR || parser.state == yaml_PARSE_END_STATE { + return true + } + + // Generate the next event. + return yaml_parser_state_machine(parser, event) +} + +// Set parser error. +func yaml_parser_set_parser_error(parser *yaml_parser_t, problem string, problem_mark yaml_mark_t) bool { + parser.error = yaml_PARSER_ERROR + parser.problem = problem + parser.problem_mark = problem_mark + return false +} + +func yaml_parser_set_parser_error_context(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string, problem_mark yaml_mark_t) bool { + parser.error = yaml_PARSER_ERROR + parser.context = context + parser.context_mark = context_mark + parser.problem = problem + parser.problem_mark = problem_mark + return false +} + +// State dispatcher. +func yaml_parser_state_machine(parser *yaml_parser_t, event *yaml_event_t) bool { + //trace("yaml_parser_state_machine", "state:", parser.state.String()) + + switch parser.state { + case yaml_PARSE_STREAM_START_STATE: + return yaml_parser_parse_stream_start(parser, event) + + case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE: + return yaml_parser_parse_document_start(parser, event, true) + + case yaml_PARSE_DOCUMENT_START_STATE: + return yaml_parser_parse_document_start(parser, event, false) + + case yaml_PARSE_DOCUMENT_CONTENT_STATE: + return yaml_parser_parse_document_content(parser, event) + + case yaml_PARSE_DOCUMENT_END_STATE: + return yaml_parser_parse_document_end(parser, event) + + case yaml_PARSE_BLOCK_NODE_STATE: + return yaml_parser_parse_node(parser, event, true, false) + + case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE: + return yaml_parser_parse_node(parser, event, true, true) + + case yaml_PARSE_FLOW_NODE_STATE: + return yaml_parser_parse_node(parser, event, false, false) + + case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE: + return yaml_parser_parse_block_sequence_entry(parser, event, true) + + case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE: + return yaml_parser_parse_block_sequence_entry(parser, event, false) + + case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE: + return yaml_parser_parse_indentless_sequence_entry(parser, event) + + case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE: + return yaml_parser_parse_block_mapping_key(parser, event, true) + + case yaml_PARSE_BLOCK_MAPPING_KEY_STATE: + return yaml_parser_parse_block_mapping_key(parser, event, false) + + case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE: + return yaml_parser_parse_block_mapping_value(parser, event) + + case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE: + return yaml_parser_parse_flow_sequence_entry(parser, event, true) + + case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE: + return yaml_parser_parse_flow_sequence_entry(parser, event, false) + + case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE: + return yaml_parser_parse_flow_sequence_entry_mapping_key(parser, event) + + case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE: + return yaml_parser_parse_flow_sequence_entry_mapping_value(parser, event) + + case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE: + return yaml_parser_parse_flow_sequence_entry_mapping_end(parser, event) + + case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE: + return yaml_parser_parse_flow_mapping_key(parser, event, true) + + case yaml_PARSE_FLOW_MAPPING_KEY_STATE: + return yaml_parser_parse_flow_mapping_key(parser, event, false) + + case yaml_PARSE_FLOW_MAPPING_VALUE_STATE: + return yaml_parser_parse_flow_mapping_value(parser, event, false) + + case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE: + return yaml_parser_parse_flow_mapping_value(parser, event, true) + + default: + panic("invalid parser state") + } +} + +// Parse the production: +// stream ::= STREAM-START implicit_document? explicit_document* STREAM-END +// ************ +func yaml_parser_parse_stream_start(parser *yaml_parser_t, event *yaml_event_t) bool { + token := peek_token(parser) + if token == nil { + return false + } + if token.typ != yaml_STREAM_START_TOKEN { + return yaml_parser_set_parser_error(parser, "did not find expected ", token.start_mark) + } + parser.state = yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE + *event = yaml_event_t{ + typ: yaml_STREAM_START_EVENT, + start_mark: token.start_mark, + end_mark: token.end_mark, + encoding: token.encoding, + } + skip_token(parser) + return true +} + +// Parse the productions: +// implicit_document ::= block_node DOCUMENT-END* +// * +// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* +// ************************* +func yaml_parser_parse_document_start(parser *yaml_parser_t, event *yaml_event_t, implicit bool) bool { + + token := peek_token(parser) + if token == nil { + return false + } + + // Parse extra document end indicators. + if !implicit { + for token.typ == yaml_DOCUMENT_END_TOKEN { + skip_token(parser) + token = peek_token(parser) + if token == nil { + return false + } + } + } + + if implicit && token.typ != yaml_VERSION_DIRECTIVE_TOKEN && + token.typ != yaml_TAG_DIRECTIVE_TOKEN && + token.typ != yaml_DOCUMENT_START_TOKEN && + token.typ != yaml_STREAM_END_TOKEN { + // Parse an implicit document. + if !yaml_parser_process_directives(parser, nil, nil) { + return false + } + parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE) + parser.state = yaml_PARSE_BLOCK_NODE_STATE + + *event = yaml_event_t{ + typ: yaml_DOCUMENT_START_EVENT, + start_mark: token.start_mark, + end_mark: token.end_mark, + } + + } else if token.typ != yaml_STREAM_END_TOKEN { + // Parse an explicit document. + var version_directive *yaml_version_directive_t + var tag_directives []yaml_tag_directive_t + start_mark := token.start_mark + if !yaml_parser_process_directives(parser, &version_directive, &tag_directives) { + return false + } + token = peek_token(parser) + if token == nil { + return false + } + if token.typ != yaml_DOCUMENT_START_TOKEN { + yaml_parser_set_parser_error(parser, + "did not find expected ", token.start_mark) + return false + } + parser.states = append(parser.states, yaml_PARSE_DOCUMENT_END_STATE) + parser.state = yaml_PARSE_DOCUMENT_CONTENT_STATE + end_mark := token.end_mark + + *event = yaml_event_t{ + typ: yaml_DOCUMENT_START_EVENT, + start_mark: start_mark, + end_mark: end_mark, + version_directive: version_directive, + tag_directives: tag_directives, + implicit: false, + } + skip_token(parser) + + } else { + // Parse the stream end. + parser.state = yaml_PARSE_END_STATE + *event = yaml_event_t{ + typ: yaml_STREAM_END_EVENT, + start_mark: token.start_mark, + end_mark: token.end_mark, + } + skip_token(parser) + } + + return true +} + +// Parse the productions: +// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* +// *********** +// +func yaml_parser_parse_document_content(parser *yaml_parser_t, event *yaml_event_t) bool { + token := peek_token(parser) + if token == nil { + return false + } + if token.typ == yaml_VERSION_DIRECTIVE_TOKEN || + token.typ == yaml_TAG_DIRECTIVE_TOKEN || + token.typ == yaml_DOCUMENT_START_TOKEN || + token.typ == yaml_DOCUMENT_END_TOKEN || + token.typ == yaml_STREAM_END_TOKEN { + parser.state = parser.states[len(parser.states)-1] + parser.states = parser.states[:len(parser.states)-1] + return yaml_parser_process_empty_scalar(parser, event, + token.start_mark) + } + return yaml_parser_parse_node(parser, event, true, false) +} + +// Parse the productions: +// implicit_document ::= block_node DOCUMENT-END* +// ************* +// explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END* +// +func yaml_parser_parse_document_end(parser *yaml_parser_t, event *yaml_event_t) bool { + token := peek_token(parser) + if token == nil { + return false + } + + start_mark := token.start_mark + end_mark := token.start_mark + + implicit := true + if token.typ == yaml_DOCUMENT_END_TOKEN { + end_mark = token.end_mark + skip_token(parser) + implicit = false + } + + parser.tag_directives = parser.tag_directives[:0] + + parser.state = yaml_PARSE_DOCUMENT_START_STATE + *event = yaml_event_t{ + typ: yaml_DOCUMENT_END_EVENT, + start_mark: start_mark, + end_mark: end_mark, + implicit: implicit, + } + return true +} + +// Parse the productions: +// block_node_or_indentless_sequence ::= +// ALIAS +// ***** +// | properties (block_content | indentless_block_sequence)? +// ********** * +// | block_content | indentless_block_sequence +// * +// block_node ::= ALIAS +// ***** +// | properties block_content? +// ********** * +// | block_content +// * +// flow_node ::= ALIAS +// ***** +// | properties flow_content? +// ********** * +// | flow_content +// * +// properties ::= TAG ANCHOR? | ANCHOR TAG? +// ************************* +// block_content ::= block_collection | flow_collection | SCALAR +// ****** +// flow_content ::= flow_collection | SCALAR +// ****** +func yaml_parser_parse_node(parser *yaml_parser_t, event *yaml_event_t, block, indentless_sequence bool) bool { + //defer trace("yaml_parser_parse_node", "block:", block, "indentless_sequence:", indentless_sequence)() + + token := peek_token(parser) + if token == nil { + return false + } + + if token.typ == yaml_ALIAS_TOKEN { + parser.state = parser.states[len(parser.states)-1] + parser.states = parser.states[:len(parser.states)-1] + *event = yaml_event_t{ + typ: yaml_ALIAS_EVENT, + start_mark: token.start_mark, + end_mark: token.end_mark, + anchor: token.value, + } + skip_token(parser) + return true + } + + start_mark := token.start_mark + end_mark := token.start_mark + + var tag_token bool + var tag_handle, tag_suffix, anchor []byte + var tag_mark yaml_mark_t + if token.typ == yaml_ANCHOR_TOKEN { + anchor = token.value + start_mark = token.start_mark + end_mark = token.end_mark + skip_token(parser) + token = peek_token(parser) + if token == nil { + return false + } + if token.typ == yaml_TAG_TOKEN { + tag_token = true + tag_handle = token.value + tag_suffix = token.suffix + tag_mark = token.start_mark + end_mark = token.end_mark + skip_token(parser) + token = peek_token(parser) + if token == nil { + return false + } + } + } else if token.typ == yaml_TAG_TOKEN { + tag_token = true + tag_handle = token.value + tag_suffix = token.suffix + start_mark = token.start_mark + tag_mark = token.start_mark + end_mark = token.end_mark + skip_token(parser) + token = peek_token(parser) + if token == nil { + return false + } + if token.typ == yaml_ANCHOR_TOKEN { + anchor = token.value + end_mark = token.end_mark + skip_token(parser) + token = peek_token(parser) + if token == nil { + return false + } + } + } + + var tag []byte + if tag_token { + if len(tag_handle) == 0 { + tag = tag_suffix + tag_suffix = nil + } else { + for i := range parser.tag_directives { + if bytes.Equal(parser.tag_directives[i].handle, tag_handle) { + tag = append([]byte(nil), parser.tag_directives[i].prefix...) + tag = append(tag, tag_suffix...) + break + } + } + if len(tag) == 0 { + yaml_parser_set_parser_error_context(parser, + "while parsing a node", start_mark, + "found undefined tag handle", tag_mark) + return false + } + } + } + + implicit := len(tag) == 0 + if indentless_sequence && token.typ == yaml_BLOCK_ENTRY_TOKEN { + end_mark = token.end_mark + parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE + *event = yaml_event_t{ + typ: yaml_SEQUENCE_START_EVENT, + start_mark: start_mark, + end_mark: end_mark, + anchor: anchor, + tag: tag, + implicit: implicit, + style: yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE), + } + return true + } + if token.typ == yaml_SCALAR_TOKEN { + var plain_implicit, quoted_implicit bool + end_mark = token.end_mark + if (len(tag) == 0 && token.style == yaml_PLAIN_SCALAR_STYLE) || (len(tag) == 1 && tag[0] == '!') { + plain_implicit = true + } else if len(tag) == 0 { + quoted_implicit = true + } + parser.state = parser.states[len(parser.states)-1] + parser.states = parser.states[:len(parser.states)-1] + + *event = yaml_event_t{ + typ: yaml_SCALAR_EVENT, + start_mark: start_mark, + end_mark: end_mark, + anchor: anchor, + tag: tag, + value: token.value, + implicit: plain_implicit, + quoted_implicit: quoted_implicit, + style: yaml_style_t(token.style), + } + skip_token(parser) + return true + } + if token.typ == yaml_FLOW_SEQUENCE_START_TOKEN { + // [Go] Some of the events below can be merged as they differ only on style. + end_mark = token.end_mark + parser.state = yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE + *event = yaml_event_t{ + typ: yaml_SEQUENCE_START_EVENT, + start_mark: start_mark, + end_mark: end_mark, + anchor: anchor, + tag: tag, + implicit: implicit, + style: yaml_style_t(yaml_FLOW_SEQUENCE_STYLE), + } + return true + } + if token.typ == yaml_FLOW_MAPPING_START_TOKEN { + end_mark = token.end_mark + parser.state = yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE + *event = yaml_event_t{ + typ: yaml_MAPPING_START_EVENT, + start_mark: start_mark, + end_mark: end_mark, + anchor: anchor, + tag: tag, + implicit: implicit, + style: yaml_style_t(yaml_FLOW_MAPPING_STYLE), + } + return true + } + if block && token.typ == yaml_BLOCK_SEQUENCE_START_TOKEN { + end_mark = token.end_mark + parser.state = yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE + *event = yaml_event_t{ + typ: yaml_SEQUENCE_START_EVENT, + start_mark: start_mark, + end_mark: end_mark, + anchor: anchor, + tag: tag, + implicit: implicit, + style: yaml_style_t(yaml_BLOCK_SEQUENCE_STYLE), + } + return true + } + if block && token.typ == yaml_BLOCK_MAPPING_START_TOKEN { + end_mark = token.end_mark + parser.state = yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE + *event = yaml_event_t{ + typ: yaml_MAPPING_START_EVENT, + start_mark: start_mark, + end_mark: end_mark, + anchor: anchor, + tag: tag, + implicit: implicit, + style: yaml_style_t(yaml_BLOCK_MAPPING_STYLE), + } + return true + } + if len(anchor) > 0 || len(tag) > 0 { + parser.state = parser.states[len(parser.states)-1] + parser.states = parser.states[:len(parser.states)-1] + + *event = yaml_event_t{ + typ: yaml_SCALAR_EVENT, + start_mark: start_mark, + end_mark: end_mark, + anchor: anchor, + tag: tag, + implicit: implicit, + quoted_implicit: false, + style: yaml_style_t(yaml_PLAIN_SCALAR_STYLE), + } + return true + } + + context := "while parsing a flow node" + if block { + context = "while parsing a block node" + } + yaml_parser_set_parser_error_context(parser, context, start_mark, + "did not find expected node content", token.start_mark) + return false +} + +// Parse the productions: +// block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END +// ******************** *********** * ********* +// +func yaml_parser_parse_block_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool { + if first { + token := peek_token(parser) + parser.marks = append(parser.marks, token.start_mark) + skip_token(parser) + } + + token := peek_token(parser) + if token == nil { + return false + } + + if token.typ == yaml_BLOCK_ENTRY_TOKEN { + mark := token.end_mark + skip_token(parser) + token = peek_token(parser) + if token == nil { + return false + } + if token.typ != yaml_BLOCK_ENTRY_TOKEN && token.typ != yaml_BLOCK_END_TOKEN { + parser.states = append(parser.states, yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE) + return yaml_parser_parse_node(parser, event, true, false) + } else { + parser.state = yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE + return yaml_parser_process_empty_scalar(parser, event, mark) + } + } + if token.typ == yaml_BLOCK_END_TOKEN { + parser.state = parser.states[len(parser.states)-1] + parser.states = parser.states[:len(parser.states)-1] + parser.marks = parser.marks[:len(parser.marks)-1] + + *event = yaml_event_t{ + typ: yaml_SEQUENCE_END_EVENT, + start_mark: token.start_mark, + end_mark: token.end_mark, + } + + skip_token(parser) + return true + } + + context_mark := parser.marks[len(parser.marks)-1] + parser.marks = parser.marks[:len(parser.marks)-1] + return yaml_parser_set_parser_error_context(parser, + "while parsing a block collection", context_mark, + "did not find expected '-' indicator", token.start_mark) +} + +// Parse the productions: +// indentless_sequence ::= (BLOCK-ENTRY block_node?)+ +// *********** * +func yaml_parser_parse_indentless_sequence_entry(parser *yaml_parser_t, event *yaml_event_t) bool { + token := peek_token(parser) + if token == nil { + return false + } + + if token.typ == yaml_BLOCK_ENTRY_TOKEN { + mark := token.end_mark + skip_token(parser) + token = peek_token(parser) + if token == nil { + return false + } + if token.typ != yaml_BLOCK_ENTRY_TOKEN && + token.typ != yaml_KEY_TOKEN && + token.typ != yaml_VALUE_TOKEN && + token.typ != yaml_BLOCK_END_TOKEN { + parser.states = append(parser.states, yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE) + return yaml_parser_parse_node(parser, event, true, false) + } + parser.state = yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE + return yaml_parser_process_empty_scalar(parser, event, mark) + } + parser.state = parser.states[len(parser.states)-1] + parser.states = parser.states[:len(parser.states)-1] + + *event = yaml_event_t{ + typ: yaml_SEQUENCE_END_EVENT, + start_mark: token.start_mark, + end_mark: token.start_mark, // [Go] Shouldn't this be token.end_mark? + } + return true +} + +// Parse the productions: +// block_mapping ::= BLOCK-MAPPING_START +// ******************* +// ((KEY block_node_or_indentless_sequence?)? +// *** * +// (VALUE block_node_or_indentless_sequence?)?)* +// +// BLOCK-END +// ********* +// +func yaml_parser_parse_block_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool { + if first { + token := peek_token(parser) + parser.marks = append(parser.marks, token.start_mark) + skip_token(parser) + } + + token := peek_token(parser) + if token == nil { + return false + } + + if token.typ == yaml_KEY_TOKEN { + mark := token.end_mark + skip_token(parser) + token = peek_token(parser) + if token == nil { + return false + } + if token.typ != yaml_KEY_TOKEN && + token.typ != yaml_VALUE_TOKEN && + token.typ != yaml_BLOCK_END_TOKEN { + parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_VALUE_STATE) + return yaml_parser_parse_node(parser, event, true, true) + } else { + parser.state = yaml_PARSE_BLOCK_MAPPING_VALUE_STATE + return yaml_parser_process_empty_scalar(parser, event, mark) + } + } else if token.typ == yaml_BLOCK_END_TOKEN { + parser.state = parser.states[len(parser.states)-1] + parser.states = parser.states[:len(parser.states)-1] + parser.marks = parser.marks[:len(parser.marks)-1] + *event = yaml_event_t{ + typ: yaml_MAPPING_END_EVENT, + start_mark: token.start_mark, + end_mark: token.end_mark, + } + skip_token(parser) + return true + } + + context_mark := parser.marks[len(parser.marks)-1] + parser.marks = parser.marks[:len(parser.marks)-1] + return yaml_parser_set_parser_error_context(parser, + "while parsing a block mapping", context_mark, + "did not find expected key", token.start_mark) +} + +// Parse the productions: +// block_mapping ::= BLOCK-MAPPING_START +// +// ((KEY block_node_or_indentless_sequence?)? +// +// (VALUE block_node_or_indentless_sequence?)?)* +// ***** * +// BLOCK-END +// +// +func yaml_parser_parse_block_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool { + token := peek_token(parser) + if token == nil { + return false + } + if token.typ == yaml_VALUE_TOKEN { + mark := token.end_mark + skip_token(parser) + token = peek_token(parser) + if token == nil { + return false + } + if token.typ != yaml_KEY_TOKEN && + token.typ != yaml_VALUE_TOKEN && + token.typ != yaml_BLOCK_END_TOKEN { + parser.states = append(parser.states, yaml_PARSE_BLOCK_MAPPING_KEY_STATE) + return yaml_parser_parse_node(parser, event, true, true) + } + parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE + return yaml_parser_process_empty_scalar(parser, event, mark) + } + parser.state = yaml_PARSE_BLOCK_MAPPING_KEY_STATE + return yaml_parser_process_empty_scalar(parser, event, token.start_mark) +} + +// Parse the productions: +// flow_sequence ::= FLOW-SEQUENCE-START +// ******************* +// (flow_sequence_entry FLOW-ENTRY)* +// * ********** +// flow_sequence_entry? +// * +// FLOW-SEQUENCE-END +// ***************** +// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? +// * +// +func yaml_parser_parse_flow_sequence_entry(parser *yaml_parser_t, event *yaml_event_t, first bool) bool { + if first { + token := peek_token(parser) + parser.marks = append(parser.marks, token.start_mark) + skip_token(parser) + } + token := peek_token(parser) + if token == nil { + return false + } + if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN { + if !first { + if token.typ == yaml_FLOW_ENTRY_TOKEN { + skip_token(parser) + token = peek_token(parser) + if token == nil { + return false + } + } else { + context_mark := parser.marks[len(parser.marks)-1] + parser.marks = parser.marks[:len(parser.marks)-1] + return yaml_parser_set_parser_error_context(parser, + "while parsing a flow sequence", context_mark, + "did not find expected ',' or ']'", token.start_mark) + } + } + + if token.typ == yaml_KEY_TOKEN { + parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE + *event = yaml_event_t{ + typ: yaml_MAPPING_START_EVENT, + start_mark: token.start_mark, + end_mark: token.end_mark, + implicit: true, + style: yaml_style_t(yaml_FLOW_MAPPING_STYLE), + } + skip_token(parser) + return true + } else if token.typ != yaml_FLOW_SEQUENCE_END_TOKEN { + parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE) + return yaml_parser_parse_node(parser, event, false, false) + } + } + + parser.state = parser.states[len(parser.states)-1] + parser.states = parser.states[:len(parser.states)-1] + parser.marks = parser.marks[:len(parser.marks)-1] + + *event = yaml_event_t{ + typ: yaml_SEQUENCE_END_EVENT, + start_mark: token.start_mark, + end_mark: token.end_mark, + } + + skip_token(parser) + return true +} + +// +// Parse the productions: +// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? +// *** * +// +func yaml_parser_parse_flow_sequence_entry_mapping_key(parser *yaml_parser_t, event *yaml_event_t) bool { + token := peek_token(parser) + if token == nil { + return false + } + if token.typ != yaml_VALUE_TOKEN && + token.typ != yaml_FLOW_ENTRY_TOKEN && + token.typ != yaml_FLOW_SEQUENCE_END_TOKEN { + parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE) + return yaml_parser_parse_node(parser, event, false, false) + } + mark := token.end_mark + skip_token(parser) + parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE + return yaml_parser_process_empty_scalar(parser, event, mark) +} + +// Parse the productions: +// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? +// ***** * +// +func yaml_parser_parse_flow_sequence_entry_mapping_value(parser *yaml_parser_t, event *yaml_event_t) bool { + token := peek_token(parser) + if token == nil { + return false + } + if token.typ == yaml_VALUE_TOKEN { + skip_token(parser) + token := peek_token(parser) + if token == nil { + return false + } + if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_SEQUENCE_END_TOKEN { + parser.states = append(parser.states, yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE) + return yaml_parser_parse_node(parser, event, false, false) + } + } + parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE + return yaml_parser_process_empty_scalar(parser, event, token.start_mark) +} + +// Parse the productions: +// flow_sequence_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? +// * +// +func yaml_parser_parse_flow_sequence_entry_mapping_end(parser *yaml_parser_t, event *yaml_event_t) bool { + token := peek_token(parser) + if token == nil { + return false + } + parser.state = yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE + *event = yaml_event_t{ + typ: yaml_MAPPING_END_EVENT, + start_mark: token.start_mark, + end_mark: token.start_mark, // [Go] Shouldn't this be end_mark? + } + return true +} + +// Parse the productions: +// flow_mapping ::= FLOW-MAPPING-START +// ****************** +// (flow_mapping_entry FLOW-ENTRY)* +// * ********** +// flow_mapping_entry? +// ****************** +// FLOW-MAPPING-END +// **************** +// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? +// * *** * +// +func yaml_parser_parse_flow_mapping_key(parser *yaml_parser_t, event *yaml_event_t, first bool) bool { + if first { + token := peek_token(parser) + parser.marks = append(parser.marks, token.start_mark) + skip_token(parser) + } + + token := peek_token(parser) + if token == nil { + return false + } + + if token.typ != yaml_FLOW_MAPPING_END_TOKEN { + if !first { + if token.typ == yaml_FLOW_ENTRY_TOKEN { + skip_token(parser) + token = peek_token(parser) + if token == nil { + return false + } + } else { + context_mark := parser.marks[len(parser.marks)-1] + parser.marks = parser.marks[:len(parser.marks)-1] + return yaml_parser_set_parser_error_context(parser, + "while parsing a flow mapping", context_mark, + "did not find expected ',' or '}'", token.start_mark) + } + } + + if token.typ == yaml_KEY_TOKEN { + skip_token(parser) + token = peek_token(parser) + if token == nil { + return false + } + if token.typ != yaml_VALUE_TOKEN && + token.typ != yaml_FLOW_ENTRY_TOKEN && + token.typ != yaml_FLOW_MAPPING_END_TOKEN { + parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_VALUE_STATE) + return yaml_parser_parse_node(parser, event, false, false) + } else { + parser.state = yaml_PARSE_FLOW_MAPPING_VALUE_STATE + return yaml_parser_process_empty_scalar(parser, event, token.start_mark) + } + } else if token.typ != yaml_FLOW_MAPPING_END_TOKEN { + parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE) + return yaml_parser_parse_node(parser, event, false, false) + } + } + + parser.state = parser.states[len(parser.states)-1] + parser.states = parser.states[:len(parser.states)-1] + parser.marks = parser.marks[:len(parser.marks)-1] + *event = yaml_event_t{ + typ: yaml_MAPPING_END_EVENT, + start_mark: token.start_mark, + end_mark: token.end_mark, + } + skip_token(parser) + return true +} + +// Parse the productions: +// flow_mapping_entry ::= flow_node | KEY flow_node? (VALUE flow_node?)? +// * ***** * +// +func yaml_parser_parse_flow_mapping_value(parser *yaml_parser_t, event *yaml_event_t, empty bool) bool { + token := peek_token(parser) + if token == nil { + return false + } + if empty { + parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE + return yaml_parser_process_empty_scalar(parser, event, token.start_mark) + } + if token.typ == yaml_VALUE_TOKEN { + skip_token(parser) + token = peek_token(parser) + if token == nil { + return false + } + if token.typ != yaml_FLOW_ENTRY_TOKEN && token.typ != yaml_FLOW_MAPPING_END_TOKEN { + parser.states = append(parser.states, yaml_PARSE_FLOW_MAPPING_KEY_STATE) + return yaml_parser_parse_node(parser, event, false, false) + } + } + parser.state = yaml_PARSE_FLOW_MAPPING_KEY_STATE + return yaml_parser_process_empty_scalar(parser, event, token.start_mark) +} + +// Generate an empty scalar event. +func yaml_parser_process_empty_scalar(parser *yaml_parser_t, event *yaml_event_t, mark yaml_mark_t) bool { + *event = yaml_event_t{ + typ: yaml_SCALAR_EVENT, + start_mark: mark, + end_mark: mark, + value: nil, // Empty + implicit: true, + style: yaml_style_t(yaml_PLAIN_SCALAR_STYLE), + } + return true +} + +var default_tag_directives = []yaml_tag_directive_t{ + {[]byte("!"), []byte("!")}, + {[]byte("!!"), []byte("tag:yaml.org,2002:")}, +} + +// Parse directives. +func yaml_parser_process_directives(parser *yaml_parser_t, + version_directive_ref **yaml_version_directive_t, + tag_directives_ref *[]yaml_tag_directive_t) bool { + + var version_directive *yaml_version_directive_t + var tag_directives []yaml_tag_directive_t + + token := peek_token(parser) + if token == nil { + return false + } + + for token.typ == yaml_VERSION_DIRECTIVE_TOKEN || token.typ == yaml_TAG_DIRECTIVE_TOKEN { + if token.typ == yaml_VERSION_DIRECTIVE_TOKEN { + if version_directive != nil { + yaml_parser_set_parser_error(parser, + "found duplicate %YAML directive", token.start_mark) + return false + } + if token.major != 1 || token.minor != 1 { + yaml_parser_set_parser_error(parser, + "found incompatible YAML document", token.start_mark) + return false + } + version_directive = &yaml_version_directive_t{ + major: token.major, + minor: token.minor, + } + } else if token.typ == yaml_TAG_DIRECTIVE_TOKEN { + value := yaml_tag_directive_t{ + handle: token.value, + prefix: token.prefix, + } + if !yaml_parser_append_tag_directive(parser, value, false, token.start_mark) { + return false + } + tag_directives = append(tag_directives, value) + } + + skip_token(parser) + token = peek_token(parser) + if token == nil { + return false + } + } + + for i := range default_tag_directives { + if !yaml_parser_append_tag_directive(parser, default_tag_directives[i], true, token.start_mark) { + return false + } + } + + if version_directive_ref != nil { + *version_directive_ref = version_directive + } + if tag_directives_ref != nil { + *tag_directives_ref = tag_directives + } + return true +} + +// Append a tag directive to the directives stack. +func yaml_parser_append_tag_directive(parser *yaml_parser_t, value yaml_tag_directive_t, allow_duplicates bool, mark yaml_mark_t) bool { + for i := range parser.tag_directives { + if bytes.Equal(value.handle, parser.tag_directives[i].handle) { + if allow_duplicates { + return true + } + return yaml_parser_set_parser_error(parser, "found duplicate %TAG directive", mark) + } + } + + // [Go] I suspect the copy is unnecessary. This was likely done + // because there was no way to track ownership of the data. + value_copy := yaml_tag_directive_t{ + handle: make([]byte, len(value.handle)), + prefix: make([]byte, len(value.prefix)), + } + copy(value_copy.handle, value.handle) + copy(value_copy.prefix, value.prefix) + parser.tag_directives = append(parser.tag_directives, value_copy) + return true +} diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/readerc.go b/vendor/sigs.k8s.io/yaml/goyaml.v2/readerc.go new file mode 100644 index 0000000000000..7c1f5fac3dbd2 --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/readerc.go @@ -0,0 +1,412 @@ +package yaml + +import ( + "io" +) + +// Set the reader error and return 0. +func yaml_parser_set_reader_error(parser *yaml_parser_t, problem string, offset int, value int) bool { + parser.error = yaml_READER_ERROR + parser.problem = problem + parser.problem_offset = offset + parser.problem_value = value + return false +} + +// Byte order marks. +const ( + bom_UTF8 = "\xef\xbb\xbf" + bom_UTF16LE = "\xff\xfe" + bom_UTF16BE = "\xfe\xff" +) + +// Determine the input stream encoding by checking the BOM symbol. If no BOM is +// found, the UTF-8 encoding is assumed. Return 1 on success, 0 on failure. +func yaml_parser_determine_encoding(parser *yaml_parser_t) bool { + // Ensure that we had enough bytes in the raw buffer. + for !parser.eof && len(parser.raw_buffer)-parser.raw_buffer_pos < 3 { + if !yaml_parser_update_raw_buffer(parser) { + return false + } + } + + // Determine the encoding. + buf := parser.raw_buffer + pos := parser.raw_buffer_pos + avail := len(buf) - pos + if avail >= 2 && buf[pos] == bom_UTF16LE[0] && buf[pos+1] == bom_UTF16LE[1] { + parser.encoding = yaml_UTF16LE_ENCODING + parser.raw_buffer_pos += 2 + parser.offset += 2 + } else if avail >= 2 && buf[pos] == bom_UTF16BE[0] && buf[pos+1] == bom_UTF16BE[1] { + parser.encoding = yaml_UTF16BE_ENCODING + parser.raw_buffer_pos += 2 + parser.offset += 2 + } else if avail >= 3 && buf[pos] == bom_UTF8[0] && buf[pos+1] == bom_UTF8[1] && buf[pos+2] == bom_UTF8[2] { + parser.encoding = yaml_UTF8_ENCODING + parser.raw_buffer_pos += 3 + parser.offset += 3 + } else { + parser.encoding = yaml_UTF8_ENCODING + } + return true +} + +// Update the raw buffer. +func yaml_parser_update_raw_buffer(parser *yaml_parser_t) bool { + size_read := 0 + + // Return if the raw buffer is full. + if parser.raw_buffer_pos == 0 && len(parser.raw_buffer) == cap(parser.raw_buffer) { + return true + } + + // Return on EOF. + if parser.eof { + return true + } + + // Move the remaining bytes in the raw buffer to the beginning. + if parser.raw_buffer_pos > 0 && parser.raw_buffer_pos < len(parser.raw_buffer) { + copy(parser.raw_buffer, parser.raw_buffer[parser.raw_buffer_pos:]) + } + parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)-parser.raw_buffer_pos] + parser.raw_buffer_pos = 0 + + // Call the read handler to fill the buffer. + size_read, err := parser.read_handler(parser, parser.raw_buffer[len(parser.raw_buffer):cap(parser.raw_buffer)]) + parser.raw_buffer = parser.raw_buffer[:len(parser.raw_buffer)+size_read] + if err == io.EOF { + parser.eof = true + } else if err != nil { + return yaml_parser_set_reader_error(parser, "input error: "+err.Error(), parser.offset, -1) + } + return true +} + +// Ensure that the buffer contains at least `length` characters. +// Return true on success, false on failure. +// +// The length is supposed to be significantly less that the buffer size. +func yaml_parser_update_buffer(parser *yaml_parser_t, length int) bool { + if parser.read_handler == nil { + panic("read handler must be set") + } + + // [Go] This function was changed to guarantee the requested length size at EOF. + // The fact we need to do this is pretty awful, but the description above implies + // for that to be the case, and there are tests + + // If the EOF flag is set and the raw buffer is empty, do nothing. + if parser.eof && parser.raw_buffer_pos == len(parser.raw_buffer) { + // [Go] ACTUALLY! Read the documentation of this function above. + // This is just broken. To return true, we need to have the + // given length in the buffer. Not doing that means every single + // check that calls this function to make sure the buffer has a + // given length is Go) panicking; or C) accessing invalid memory. + //return true + } + + // Return if the buffer contains enough characters. + if parser.unread >= length { + return true + } + + // Determine the input encoding if it is not known yet. + if parser.encoding == yaml_ANY_ENCODING { + if !yaml_parser_determine_encoding(parser) { + return false + } + } + + // Move the unread characters to the beginning of the buffer. + buffer_len := len(parser.buffer) + if parser.buffer_pos > 0 && parser.buffer_pos < buffer_len { + copy(parser.buffer, parser.buffer[parser.buffer_pos:]) + buffer_len -= parser.buffer_pos + parser.buffer_pos = 0 + } else if parser.buffer_pos == buffer_len { + buffer_len = 0 + parser.buffer_pos = 0 + } + + // Open the whole buffer for writing, and cut it before returning. + parser.buffer = parser.buffer[:cap(parser.buffer)] + + // Fill the buffer until it has enough characters. + first := true + for parser.unread < length { + + // Fill the raw buffer if necessary. + if !first || parser.raw_buffer_pos == len(parser.raw_buffer) { + if !yaml_parser_update_raw_buffer(parser) { + parser.buffer = parser.buffer[:buffer_len] + return false + } + } + first = false + + // Decode the raw buffer. + inner: + for parser.raw_buffer_pos != len(parser.raw_buffer) { + var value rune + var width int + + raw_unread := len(parser.raw_buffer) - parser.raw_buffer_pos + + // Decode the next character. + switch parser.encoding { + case yaml_UTF8_ENCODING: + // Decode a UTF-8 character. Check RFC 3629 + // (http://www.ietf.org/rfc/rfc3629.txt) for more details. + // + // The following table (taken from the RFC) is used for + // decoding. + // + // Char. number range | UTF-8 octet sequence + // (hexadecimal) | (binary) + // --------------------+------------------------------------ + // 0000 0000-0000 007F | 0xxxxxxx + // 0000 0080-0000 07FF | 110xxxxx 10xxxxxx + // 0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx + // 0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + // + // Additionally, the characters in the range 0xD800-0xDFFF + // are prohibited as they are reserved for use with UTF-16 + // surrogate pairs. + + // Determine the length of the UTF-8 sequence. + octet := parser.raw_buffer[parser.raw_buffer_pos] + switch { + case octet&0x80 == 0x00: + width = 1 + case octet&0xE0 == 0xC0: + width = 2 + case octet&0xF0 == 0xE0: + width = 3 + case octet&0xF8 == 0xF0: + width = 4 + default: + // The leading octet is invalid. + return yaml_parser_set_reader_error(parser, + "invalid leading UTF-8 octet", + parser.offset, int(octet)) + } + + // Check if the raw buffer contains an incomplete character. + if width > raw_unread { + if parser.eof { + return yaml_parser_set_reader_error(parser, + "incomplete UTF-8 octet sequence", + parser.offset, -1) + } + break inner + } + + // Decode the leading octet. + switch { + case octet&0x80 == 0x00: + value = rune(octet & 0x7F) + case octet&0xE0 == 0xC0: + value = rune(octet & 0x1F) + case octet&0xF0 == 0xE0: + value = rune(octet & 0x0F) + case octet&0xF8 == 0xF0: + value = rune(octet & 0x07) + default: + value = 0 + } + + // Check and decode the trailing octets. + for k := 1; k < width; k++ { + octet = parser.raw_buffer[parser.raw_buffer_pos+k] + + // Check if the octet is valid. + if (octet & 0xC0) != 0x80 { + return yaml_parser_set_reader_error(parser, + "invalid trailing UTF-8 octet", + parser.offset+k, int(octet)) + } + + // Decode the octet. + value = (value << 6) + rune(octet&0x3F) + } + + // Check the length of the sequence against the value. + switch { + case width == 1: + case width == 2 && value >= 0x80: + case width == 3 && value >= 0x800: + case width == 4 && value >= 0x10000: + default: + return yaml_parser_set_reader_error(parser, + "invalid length of a UTF-8 sequence", + parser.offset, -1) + } + + // Check the range of the value. + if value >= 0xD800 && value <= 0xDFFF || value > 0x10FFFF { + return yaml_parser_set_reader_error(parser, + "invalid Unicode character", + parser.offset, int(value)) + } + + case yaml_UTF16LE_ENCODING, yaml_UTF16BE_ENCODING: + var low, high int + if parser.encoding == yaml_UTF16LE_ENCODING { + low, high = 0, 1 + } else { + low, high = 1, 0 + } + + // The UTF-16 encoding is not as simple as one might + // naively think. Check RFC 2781 + // (http://www.ietf.org/rfc/rfc2781.txt). + // + // Normally, two subsequent bytes describe a Unicode + // character. However a special technique (called a + // surrogate pair) is used for specifying character + // values larger than 0xFFFF. + // + // A surrogate pair consists of two pseudo-characters: + // high surrogate area (0xD800-0xDBFF) + // low surrogate area (0xDC00-0xDFFF) + // + // The following formulas are used for decoding + // and encoding characters using surrogate pairs: + // + // U = U' + 0x10000 (0x01 00 00 <= U <= 0x10 FF FF) + // U' = yyyyyyyyyyxxxxxxxxxx (0 <= U' <= 0x0F FF FF) + // W1 = 110110yyyyyyyyyy + // W2 = 110111xxxxxxxxxx + // + // where U is the character value, W1 is the high surrogate + // area, W2 is the low surrogate area. + + // Check for incomplete UTF-16 character. + if raw_unread < 2 { + if parser.eof { + return yaml_parser_set_reader_error(parser, + "incomplete UTF-16 character", + parser.offset, -1) + } + break inner + } + + // Get the character. + value = rune(parser.raw_buffer[parser.raw_buffer_pos+low]) + + (rune(parser.raw_buffer[parser.raw_buffer_pos+high]) << 8) + + // Check for unexpected low surrogate area. + if value&0xFC00 == 0xDC00 { + return yaml_parser_set_reader_error(parser, + "unexpected low surrogate area", + parser.offset, int(value)) + } + + // Check for a high surrogate area. + if value&0xFC00 == 0xD800 { + width = 4 + + // Check for incomplete surrogate pair. + if raw_unread < 4 { + if parser.eof { + return yaml_parser_set_reader_error(parser, + "incomplete UTF-16 surrogate pair", + parser.offset, -1) + } + break inner + } + + // Get the next character. + value2 := rune(parser.raw_buffer[parser.raw_buffer_pos+low+2]) + + (rune(parser.raw_buffer[parser.raw_buffer_pos+high+2]) << 8) + + // Check for a low surrogate area. + if value2&0xFC00 != 0xDC00 { + return yaml_parser_set_reader_error(parser, + "expected low surrogate area", + parser.offset+2, int(value2)) + } + + // Generate the value of the surrogate pair. + value = 0x10000 + ((value & 0x3FF) << 10) + (value2 & 0x3FF) + } else { + width = 2 + } + + default: + panic("impossible") + } + + // Check if the character is in the allowed range: + // #x9 | #xA | #xD | [#x20-#x7E] (8 bit) + // | #x85 | [#xA0-#xD7FF] | [#xE000-#xFFFD] (16 bit) + // | [#x10000-#x10FFFF] (32 bit) + switch { + case value == 0x09: + case value == 0x0A: + case value == 0x0D: + case value >= 0x20 && value <= 0x7E: + case value == 0x85: + case value >= 0xA0 && value <= 0xD7FF: + case value >= 0xE000 && value <= 0xFFFD: + case value >= 0x10000 && value <= 0x10FFFF: + default: + return yaml_parser_set_reader_error(parser, + "control characters are not allowed", + parser.offset, int(value)) + } + + // Move the raw pointers. + parser.raw_buffer_pos += width + parser.offset += width + + // Finally put the character into the buffer. + if value <= 0x7F { + // 0000 0000-0000 007F . 0xxxxxxx + parser.buffer[buffer_len+0] = byte(value) + buffer_len += 1 + } else if value <= 0x7FF { + // 0000 0080-0000 07FF . 110xxxxx 10xxxxxx + parser.buffer[buffer_len+0] = byte(0xC0 + (value >> 6)) + parser.buffer[buffer_len+1] = byte(0x80 + (value & 0x3F)) + buffer_len += 2 + } else if value <= 0xFFFF { + // 0000 0800-0000 FFFF . 1110xxxx 10xxxxxx 10xxxxxx + parser.buffer[buffer_len+0] = byte(0xE0 + (value >> 12)) + parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 6) & 0x3F)) + parser.buffer[buffer_len+2] = byte(0x80 + (value & 0x3F)) + buffer_len += 3 + } else { + // 0001 0000-0010 FFFF . 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + parser.buffer[buffer_len+0] = byte(0xF0 + (value >> 18)) + parser.buffer[buffer_len+1] = byte(0x80 + ((value >> 12) & 0x3F)) + parser.buffer[buffer_len+2] = byte(0x80 + ((value >> 6) & 0x3F)) + parser.buffer[buffer_len+3] = byte(0x80 + (value & 0x3F)) + buffer_len += 4 + } + + parser.unread++ + } + + // On EOF, put NUL into the buffer and return. + if parser.eof { + parser.buffer[buffer_len] = 0 + buffer_len++ + parser.unread++ + break + } + } + // [Go] Read the documentation of this function above. To return true, + // we need to have the given length in the buffer. Not doing that means + // every single check that calls this function to make sure the buffer + // has a given length is Go) panicking; or C) accessing invalid memory. + // This happens here due to the EOF above breaking early. + for buffer_len < length { + parser.buffer[buffer_len] = 0 + buffer_len++ + } + parser.buffer = parser.buffer[:buffer_len] + return true +} diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/resolve.go b/vendor/sigs.k8s.io/yaml/goyaml.v2/resolve.go new file mode 100644 index 0000000000000..4120e0c9160a1 --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/resolve.go @@ -0,0 +1,258 @@ +package yaml + +import ( + "encoding/base64" + "math" + "regexp" + "strconv" + "strings" + "time" +) + +type resolveMapItem struct { + value interface{} + tag string +} + +var resolveTable = make([]byte, 256) +var resolveMap = make(map[string]resolveMapItem) + +func init() { + t := resolveTable + t[int('+')] = 'S' // Sign + t[int('-')] = 'S' + for _, c := range "0123456789" { + t[int(c)] = 'D' // Digit + } + for _, c := range "yYnNtTfFoO~" { + t[int(c)] = 'M' // In map + } + t[int('.')] = '.' // Float (potentially in map) + + var resolveMapList = []struct { + v interface{} + tag string + l []string + }{ + {true, yaml_BOOL_TAG, []string{"y", "Y", "yes", "Yes", "YES"}}, + {true, yaml_BOOL_TAG, []string{"true", "True", "TRUE"}}, + {true, yaml_BOOL_TAG, []string{"on", "On", "ON"}}, + {false, yaml_BOOL_TAG, []string{"n", "N", "no", "No", "NO"}}, + {false, yaml_BOOL_TAG, []string{"false", "False", "FALSE"}}, + {false, yaml_BOOL_TAG, []string{"off", "Off", "OFF"}}, + {nil, yaml_NULL_TAG, []string{"", "~", "null", "Null", "NULL"}}, + {math.NaN(), yaml_FLOAT_TAG, []string{".nan", ".NaN", ".NAN"}}, + {math.Inf(+1), yaml_FLOAT_TAG, []string{".inf", ".Inf", ".INF"}}, + {math.Inf(+1), yaml_FLOAT_TAG, []string{"+.inf", "+.Inf", "+.INF"}}, + {math.Inf(-1), yaml_FLOAT_TAG, []string{"-.inf", "-.Inf", "-.INF"}}, + {"<<", yaml_MERGE_TAG, []string{"<<"}}, + } + + m := resolveMap + for _, item := range resolveMapList { + for _, s := range item.l { + m[s] = resolveMapItem{item.v, item.tag} + } + } +} + +const longTagPrefix = "tag:yaml.org,2002:" + +func shortTag(tag string) string { + // TODO This can easily be made faster and produce less garbage. + if strings.HasPrefix(tag, longTagPrefix) { + return "!!" + tag[len(longTagPrefix):] + } + return tag +} + +func longTag(tag string) string { + if strings.HasPrefix(tag, "!!") { + return longTagPrefix + tag[2:] + } + return tag +} + +func resolvableTag(tag string) bool { + switch tag { + case "", yaml_STR_TAG, yaml_BOOL_TAG, yaml_INT_TAG, yaml_FLOAT_TAG, yaml_NULL_TAG, yaml_TIMESTAMP_TAG: + return true + } + return false +} + +var yamlStyleFloat = regexp.MustCompile(`^[-+]?(\.[0-9]+|[0-9]+(\.[0-9]*)?)([eE][-+]?[0-9]+)?$`) + +func resolve(tag string, in string) (rtag string, out interface{}) { + if !resolvableTag(tag) { + return tag, in + } + + defer func() { + switch tag { + case "", rtag, yaml_STR_TAG, yaml_BINARY_TAG: + return + case yaml_FLOAT_TAG: + if rtag == yaml_INT_TAG { + switch v := out.(type) { + case int64: + rtag = yaml_FLOAT_TAG + out = float64(v) + return + case int: + rtag = yaml_FLOAT_TAG + out = float64(v) + return + } + } + } + failf("cannot decode %s `%s` as a %s", shortTag(rtag), in, shortTag(tag)) + }() + + // Any data is accepted as a !!str or !!binary. + // Otherwise, the prefix is enough of a hint about what it might be. + hint := byte('N') + if in != "" { + hint = resolveTable[in[0]] + } + if hint != 0 && tag != yaml_STR_TAG && tag != yaml_BINARY_TAG { + // Handle things we can lookup in a map. + if item, ok := resolveMap[in]; ok { + return item.tag, item.value + } + + // Base 60 floats are a bad idea, were dropped in YAML 1.2, and + // are purposefully unsupported here. They're still quoted on + // the way out for compatibility with other parser, though. + + switch hint { + case 'M': + // We've already checked the map above. + + case '.': + // Not in the map, so maybe a normal float. + floatv, err := strconv.ParseFloat(in, 64) + if err == nil { + return yaml_FLOAT_TAG, floatv + } + + case 'D', 'S': + // Int, float, or timestamp. + // Only try values as a timestamp if the value is unquoted or there's an explicit + // !!timestamp tag. + if tag == "" || tag == yaml_TIMESTAMP_TAG { + t, ok := parseTimestamp(in) + if ok { + return yaml_TIMESTAMP_TAG, t + } + } + + plain := strings.Replace(in, "_", "", -1) + intv, err := strconv.ParseInt(plain, 0, 64) + if err == nil { + if intv == int64(int(intv)) { + return yaml_INT_TAG, int(intv) + } else { + return yaml_INT_TAG, intv + } + } + uintv, err := strconv.ParseUint(plain, 0, 64) + if err == nil { + return yaml_INT_TAG, uintv + } + if yamlStyleFloat.MatchString(plain) { + floatv, err := strconv.ParseFloat(plain, 64) + if err == nil { + return yaml_FLOAT_TAG, floatv + } + } + if strings.HasPrefix(plain, "0b") { + intv, err := strconv.ParseInt(plain[2:], 2, 64) + if err == nil { + if intv == int64(int(intv)) { + return yaml_INT_TAG, int(intv) + } else { + return yaml_INT_TAG, intv + } + } + uintv, err := strconv.ParseUint(plain[2:], 2, 64) + if err == nil { + return yaml_INT_TAG, uintv + } + } else if strings.HasPrefix(plain, "-0b") { + intv, err := strconv.ParseInt("-" + plain[3:], 2, 64) + if err == nil { + if true || intv == int64(int(intv)) { + return yaml_INT_TAG, int(intv) + } else { + return yaml_INT_TAG, intv + } + } + } + default: + panic("resolveTable item not yet handled: " + string(rune(hint)) + " (with " + in + ")") + } + } + return yaml_STR_TAG, in +} + +// encodeBase64 encodes s as base64 that is broken up into multiple lines +// as appropriate for the resulting length. +func encodeBase64(s string) string { + const lineLen = 70 + encLen := base64.StdEncoding.EncodedLen(len(s)) + lines := encLen/lineLen + 1 + buf := make([]byte, encLen*2+lines) + in := buf[0:encLen] + out := buf[encLen:] + base64.StdEncoding.Encode(in, []byte(s)) + k := 0 + for i := 0; i < len(in); i += lineLen { + j := i + lineLen + if j > len(in) { + j = len(in) + } + k += copy(out[k:], in[i:j]) + if lines > 1 { + out[k] = '\n' + k++ + } + } + return string(out[:k]) +} + +// This is a subset of the formats allowed by the regular expression +// defined at http://yaml.org/type/timestamp.html. +var allowedTimestampFormats = []string{ + "2006-1-2T15:4:5.999999999Z07:00", // RCF3339Nano with short date fields. + "2006-1-2t15:4:5.999999999Z07:00", // RFC3339Nano with short date fields and lower-case "t". + "2006-1-2 15:4:5.999999999", // space separated with no time zone + "2006-1-2", // date only + // Notable exception: time.Parse cannot handle: "2001-12-14 21:59:43.10 -5" + // from the set of examples. +} + +// parseTimestamp parses s as a timestamp string and +// returns the timestamp and reports whether it succeeded. +// Timestamp formats are defined at http://yaml.org/type/timestamp.html +func parseTimestamp(s string) (time.Time, bool) { + // TODO write code to check all the formats supported by + // http://yaml.org/type/timestamp.html instead of using time.Parse. + + // Quick check: all date formats start with YYYY-. + i := 0 + for ; i < len(s); i++ { + if c := s[i]; c < '0' || c > '9' { + break + } + } + if i != 4 || i == len(s) || s[i] != '-' { + return time.Time{}, false + } + for _, format := range allowedTimestampFormats { + if t, err := time.Parse(format, s); err == nil { + return t, true + } + } + return time.Time{}, false +} diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/scannerc.go b/vendor/sigs.k8s.io/yaml/goyaml.v2/scannerc.go new file mode 100644 index 0000000000000..0b9bb6030a0fa --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/scannerc.go @@ -0,0 +1,2711 @@ +package yaml + +import ( + "bytes" + "fmt" +) + +// Introduction +// ************ +// +// The following notes assume that you are familiar with the YAML specification +// (http://yaml.org/spec/1.2/spec.html). We mostly follow it, although in +// some cases we are less restrictive that it requires. +// +// The process of transforming a YAML stream into a sequence of events is +// divided on two steps: Scanning and Parsing. +// +// The Scanner transforms the input stream into a sequence of tokens, while the +// parser transform the sequence of tokens produced by the Scanner into a +// sequence of parsing events. +// +// The Scanner is rather clever and complicated. The Parser, on the contrary, +// is a straightforward implementation of a recursive-descendant parser (or, +// LL(1) parser, as it is usually called). +// +// Actually there are two issues of Scanning that might be called "clever", the +// rest is quite straightforward. The issues are "block collection start" and +// "simple keys". Both issues are explained below in details. +// +// Here the Scanning step is explained and implemented. We start with the list +// of all the tokens produced by the Scanner together with short descriptions. +// +// Now, tokens: +// +// STREAM-START(encoding) # The stream start. +// STREAM-END # The stream end. +// VERSION-DIRECTIVE(major,minor) # The '%YAML' directive. +// TAG-DIRECTIVE(handle,prefix) # The '%TAG' directive. +// DOCUMENT-START # '---' +// DOCUMENT-END # '...' +// BLOCK-SEQUENCE-START # Indentation increase denoting a block +// BLOCK-MAPPING-START # sequence or a block mapping. +// BLOCK-END # Indentation decrease. +// FLOW-SEQUENCE-START # '[' +// FLOW-SEQUENCE-END # ']' +// BLOCK-SEQUENCE-START # '{' +// BLOCK-SEQUENCE-END # '}' +// BLOCK-ENTRY # '-' +// FLOW-ENTRY # ',' +// KEY # '?' or nothing (simple keys). +// VALUE # ':' +// ALIAS(anchor) # '*anchor' +// ANCHOR(anchor) # '&anchor' +// TAG(handle,suffix) # '!handle!suffix' +// SCALAR(value,style) # A scalar. +// +// The following two tokens are "virtual" tokens denoting the beginning and the +// end of the stream: +// +// STREAM-START(encoding) +// STREAM-END +// +// We pass the information about the input stream encoding with the +// STREAM-START token. +// +// The next two tokens are responsible for tags: +// +// VERSION-DIRECTIVE(major,minor) +// TAG-DIRECTIVE(handle,prefix) +// +// Example: +// +// %YAML 1.1 +// %TAG ! !foo +// %TAG !yaml! tag:yaml.org,2002: +// --- +// +// The correspoding sequence of tokens: +// +// STREAM-START(utf-8) +// VERSION-DIRECTIVE(1,1) +// TAG-DIRECTIVE("!","!foo") +// TAG-DIRECTIVE("!yaml","tag:yaml.org,2002:") +// DOCUMENT-START +// STREAM-END +// +// Note that the VERSION-DIRECTIVE and TAG-DIRECTIVE tokens occupy a whole +// line. +// +// The document start and end indicators are represented by: +// +// DOCUMENT-START +// DOCUMENT-END +// +// Note that if a YAML stream contains an implicit document (without '---' +// and '...' indicators), no DOCUMENT-START and DOCUMENT-END tokens will be +// produced. +// +// In the following examples, we present whole documents together with the +// produced tokens. +// +// 1. An implicit document: +// +// 'a scalar' +// +// Tokens: +// +// STREAM-START(utf-8) +// SCALAR("a scalar",single-quoted) +// STREAM-END +// +// 2. An explicit document: +// +// --- +// 'a scalar' +// ... +// +// Tokens: +// +// STREAM-START(utf-8) +// DOCUMENT-START +// SCALAR("a scalar",single-quoted) +// DOCUMENT-END +// STREAM-END +// +// 3. Several documents in a stream: +// +// 'a scalar' +// --- +// 'another scalar' +// --- +// 'yet another scalar' +// +// Tokens: +// +// STREAM-START(utf-8) +// SCALAR("a scalar",single-quoted) +// DOCUMENT-START +// SCALAR("another scalar",single-quoted) +// DOCUMENT-START +// SCALAR("yet another scalar",single-quoted) +// STREAM-END +// +// We have already introduced the SCALAR token above. The following tokens are +// used to describe aliases, anchors, tag, and scalars: +// +// ALIAS(anchor) +// ANCHOR(anchor) +// TAG(handle,suffix) +// SCALAR(value,style) +// +// The following series of examples illustrate the usage of these tokens: +// +// 1. A recursive sequence: +// +// &A [ *A ] +// +// Tokens: +// +// STREAM-START(utf-8) +// ANCHOR("A") +// FLOW-SEQUENCE-START +// ALIAS("A") +// FLOW-SEQUENCE-END +// STREAM-END +// +// 2. A tagged scalar: +// +// !!float "3.14" # A good approximation. +// +// Tokens: +// +// STREAM-START(utf-8) +// TAG("!!","float") +// SCALAR("3.14",double-quoted) +// STREAM-END +// +// 3. Various scalar styles: +// +// --- # Implicit empty plain scalars do not produce tokens. +// --- a plain scalar +// --- 'a single-quoted scalar' +// --- "a double-quoted scalar" +// --- |- +// a literal scalar +// --- >- +// a folded +// scalar +// +// Tokens: +// +// STREAM-START(utf-8) +// DOCUMENT-START +// DOCUMENT-START +// SCALAR("a plain scalar",plain) +// DOCUMENT-START +// SCALAR("a single-quoted scalar",single-quoted) +// DOCUMENT-START +// SCALAR("a double-quoted scalar",double-quoted) +// DOCUMENT-START +// SCALAR("a literal scalar",literal) +// DOCUMENT-START +// SCALAR("a folded scalar",folded) +// STREAM-END +// +// Now it's time to review collection-related tokens. We will start with +// flow collections: +// +// FLOW-SEQUENCE-START +// FLOW-SEQUENCE-END +// FLOW-MAPPING-START +// FLOW-MAPPING-END +// FLOW-ENTRY +// KEY +// VALUE +// +// The tokens FLOW-SEQUENCE-START, FLOW-SEQUENCE-END, FLOW-MAPPING-START, and +// FLOW-MAPPING-END represent the indicators '[', ']', '{', and '}' +// correspondingly. FLOW-ENTRY represent the ',' indicator. Finally the +// indicators '?' and ':', which are used for denoting mapping keys and values, +// are represented by the KEY and VALUE tokens. +// +// The following examples show flow collections: +// +// 1. A flow sequence: +// +// [item 1, item 2, item 3] +// +// Tokens: +// +// STREAM-START(utf-8) +// FLOW-SEQUENCE-START +// SCALAR("item 1",plain) +// FLOW-ENTRY +// SCALAR("item 2",plain) +// FLOW-ENTRY +// SCALAR("item 3",plain) +// FLOW-SEQUENCE-END +// STREAM-END +// +// 2. A flow mapping: +// +// { +// a simple key: a value, # Note that the KEY token is produced. +// ? a complex key: another value, +// } +// +// Tokens: +// +// STREAM-START(utf-8) +// FLOW-MAPPING-START +// KEY +// SCALAR("a simple key",plain) +// VALUE +// SCALAR("a value",plain) +// FLOW-ENTRY +// KEY +// SCALAR("a complex key",plain) +// VALUE +// SCALAR("another value",plain) +// FLOW-ENTRY +// FLOW-MAPPING-END +// STREAM-END +// +// A simple key is a key which is not denoted by the '?' indicator. Note that +// the Scanner still produce the KEY token whenever it encounters a simple key. +// +// For scanning block collections, the following tokens are used (note that we +// repeat KEY and VALUE here): +// +// BLOCK-SEQUENCE-START +// BLOCK-MAPPING-START +// BLOCK-END +// BLOCK-ENTRY +// KEY +// VALUE +// +// The tokens BLOCK-SEQUENCE-START and BLOCK-MAPPING-START denote indentation +// increase that precedes a block collection (cf. the INDENT token in Python). +// The token BLOCK-END denote indentation decrease that ends a block collection +// (cf. the DEDENT token in Python). However YAML has some syntax pecularities +// that makes detections of these tokens more complex. +// +// The tokens BLOCK-ENTRY, KEY, and VALUE are used to represent the indicators +// '-', '?', and ':' correspondingly. +// +// The following examples show how the tokens BLOCK-SEQUENCE-START, +// BLOCK-MAPPING-START, and BLOCK-END are emitted by the Scanner: +// +// 1. Block sequences: +// +// - item 1 +// - item 2 +// - +// - item 3.1 +// - item 3.2 +// - +// key 1: value 1 +// key 2: value 2 +// +// Tokens: +// +// STREAM-START(utf-8) +// BLOCK-SEQUENCE-START +// BLOCK-ENTRY +// SCALAR("item 1",plain) +// BLOCK-ENTRY +// SCALAR("item 2",plain) +// BLOCK-ENTRY +// BLOCK-SEQUENCE-START +// BLOCK-ENTRY +// SCALAR("item 3.1",plain) +// BLOCK-ENTRY +// SCALAR("item 3.2",plain) +// BLOCK-END +// BLOCK-ENTRY +// BLOCK-MAPPING-START +// KEY +// SCALAR("key 1",plain) +// VALUE +// SCALAR("value 1",plain) +// KEY +// SCALAR("key 2",plain) +// VALUE +// SCALAR("value 2",plain) +// BLOCK-END +// BLOCK-END +// STREAM-END +// +// 2. Block mappings: +// +// a simple key: a value # The KEY token is produced here. +// ? a complex key +// : another value +// a mapping: +// key 1: value 1 +// key 2: value 2 +// a sequence: +// - item 1 +// - item 2 +// +// Tokens: +// +// STREAM-START(utf-8) +// BLOCK-MAPPING-START +// KEY +// SCALAR("a simple key",plain) +// VALUE +// SCALAR("a value",plain) +// KEY +// SCALAR("a complex key",plain) +// VALUE +// SCALAR("another value",plain) +// KEY +// SCALAR("a mapping",plain) +// BLOCK-MAPPING-START +// KEY +// SCALAR("key 1",plain) +// VALUE +// SCALAR("value 1",plain) +// KEY +// SCALAR("key 2",plain) +// VALUE +// SCALAR("value 2",plain) +// BLOCK-END +// KEY +// SCALAR("a sequence",plain) +// VALUE +// BLOCK-SEQUENCE-START +// BLOCK-ENTRY +// SCALAR("item 1",plain) +// BLOCK-ENTRY +// SCALAR("item 2",plain) +// BLOCK-END +// BLOCK-END +// STREAM-END +// +// YAML does not always require to start a new block collection from a new +// line. If the current line contains only '-', '?', and ':' indicators, a new +// block collection may start at the current line. The following examples +// illustrate this case: +// +// 1. Collections in a sequence: +// +// - - item 1 +// - item 2 +// - key 1: value 1 +// key 2: value 2 +// - ? complex key +// : complex value +// +// Tokens: +// +// STREAM-START(utf-8) +// BLOCK-SEQUENCE-START +// BLOCK-ENTRY +// BLOCK-SEQUENCE-START +// BLOCK-ENTRY +// SCALAR("item 1",plain) +// BLOCK-ENTRY +// SCALAR("item 2",plain) +// BLOCK-END +// BLOCK-ENTRY +// BLOCK-MAPPING-START +// KEY +// SCALAR("key 1",plain) +// VALUE +// SCALAR("value 1",plain) +// KEY +// SCALAR("key 2",plain) +// VALUE +// SCALAR("value 2",plain) +// BLOCK-END +// BLOCK-ENTRY +// BLOCK-MAPPING-START +// KEY +// SCALAR("complex key") +// VALUE +// SCALAR("complex value") +// BLOCK-END +// BLOCK-END +// STREAM-END +// +// 2. Collections in a mapping: +// +// ? a sequence +// : - item 1 +// - item 2 +// ? a mapping +// : key 1: value 1 +// key 2: value 2 +// +// Tokens: +// +// STREAM-START(utf-8) +// BLOCK-MAPPING-START +// KEY +// SCALAR("a sequence",plain) +// VALUE +// BLOCK-SEQUENCE-START +// BLOCK-ENTRY +// SCALAR("item 1",plain) +// BLOCK-ENTRY +// SCALAR("item 2",plain) +// BLOCK-END +// KEY +// SCALAR("a mapping",plain) +// VALUE +// BLOCK-MAPPING-START +// KEY +// SCALAR("key 1",plain) +// VALUE +// SCALAR("value 1",plain) +// KEY +// SCALAR("key 2",plain) +// VALUE +// SCALAR("value 2",plain) +// BLOCK-END +// BLOCK-END +// STREAM-END +// +// YAML also permits non-indented sequences if they are included into a block +// mapping. In this case, the token BLOCK-SEQUENCE-START is not produced: +// +// key: +// - item 1 # BLOCK-SEQUENCE-START is NOT produced here. +// - item 2 +// +// Tokens: +// +// STREAM-START(utf-8) +// BLOCK-MAPPING-START +// KEY +// SCALAR("key",plain) +// VALUE +// BLOCK-ENTRY +// SCALAR("item 1",plain) +// BLOCK-ENTRY +// SCALAR("item 2",plain) +// BLOCK-END +// + +// Ensure that the buffer contains the required number of characters. +// Return true on success, false on failure (reader error or memory error). +func cache(parser *yaml_parser_t, length int) bool { + // [Go] This was inlined: !cache(A, B) -> unread < B && !update(A, B) + return parser.unread >= length || yaml_parser_update_buffer(parser, length) +} + +// Advance the buffer pointer. +func skip(parser *yaml_parser_t) { + parser.mark.index++ + parser.mark.column++ + parser.unread-- + parser.buffer_pos += width(parser.buffer[parser.buffer_pos]) +} + +func skip_line(parser *yaml_parser_t) { + if is_crlf(parser.buffer, parser.buffer_pos) { + parser.mark.index += 2 + parser.mark.column = 0 + parser.mark.line++ + parser.unread -= 2 + parser.buffer_pos += 2 + } else if is_break(parser.buffer, parser.buffer_pos) { + parser.mark.index++ + parser.mark.column = 0 + parser.mark.line++ + parser.unread-- + parser.buffer_pos += width(parser.buffer[parser.buffer_pos]) + } +} + +// Copy a character to a string buffer and advance pointers. +func read(parser *yaml_parser_t, s []byte) []byte { + w := width(parser.buffer[parser.buffer_pos]) + if w == 0 { + panic("invalid character sequence") + } + if len(s) == 0 { + s = make([]byte, 0, 32) + } + if w == 1 && len(s)+w <= cap(s) { + s = s[:len(s)+1] + s[len(s)-1] = parser.buffer[parser.buffer_pos] + parser.buffer_pos++ + } else { + s = append(s, parser.buffer[parser.buffer_pos:parser.buffer_pos+w]...) + parser.buffer_pos += w + } + parser.mark.index++ + parser.mark.column++ + parser.unread-- + return s +} + +// Copy a line break character to a string buffer and advance pointers. +func read_line(parser *yaml_parser_t, s []byte) []byte { + buf := parser.buffer + pos := parser.buffer_pos + switch { + case buf[pos] == '\r' && buf[pos+1] == '\n': + // CR LF . LF + s = append(s, '\n') + parser.buffer_pos += 2 + parser.mark.index++ + parser.unread-- + case buf[pos] == '\r' || buf[pos] == '\n': + // CR|LF . LF + s = append(s, '\n') + parser.buffer_pos += 1 + case buf[pos] == '\xC2' && buf[pos+1] == '\x85': + // NEL . LF + s = append(s, '\n') + parser.buffer_pos += 2 + case buf[pos] == '\xE2' && buf[pos+1] == '\x80' && (buf[pos+2] == '\xA8' || buf[pos+2] == '\xA9'): + // LS|PS . LS|PS + s = append(s, buf[parser.buffer_pos:pos+3]...) + parser.buffer_pos += 3 + default: + return s + } + parser.mark.index++ + parser.mark.column = 0 + parser.mark.line++ + parser.unread-- + return s +} + +// Get the next token. +func yaml_parser_scan(parser *yaml_parser_t, token *yaml_token_t) bool { + // Erase the token object. + *token = yaml_token_t{} // [Go] Is this necessary? + + // No tokens after STREAM-END or error. + if parser.stream_end_produced || parser.error != yaml_NO_ERROR { + return true + } + + // Ensure that the tokens queue contains enough tokens. + if !parser.token_available { + if !yaml_parser_fetch_more_tokens(parser) { + return false + } + } + + // Fetch the next token from the queue. + *token = parser.tokens[parser.tokens_head] + parser.tokens_head++ + parser.tokens_parsed++ + parser.token_available = false + + if token.typ == yaml_STREAM_END_TOKEN { + parser.stream_end_produced = true + } + return true +} + +// Set the scanner error and return false. +func yaml_parser_set_scanner_error(parser *yaml_parser_t, context string, context_mark yaml_mark_t, problem string) bool { + parser.error = yaml_SCANNER_ERROR + parser.context = context + parser.context_mark = context_mark + parser.problem = problem + parser.problem_mark = parser.mark + return false +} + +func yaml_parser_set_scanner_tag_error(parser *yaml_parser_t, directive bool, context_mark yaml_mark_t, problem string) bool { + context := "while parsing a tag" + if directive { + context = "while parsing a %TAG directive" + } + return yaml_parser_set_scanner_error(parser, context, context_mark, problem) +} + +func trace(args ...interface{}) func() { + pargs := append([]interface{}{"+++"}, args...) + fmt.Println(pargs...) + pargs = append([]interface{}{"---"}, args...) + return func() { fmt.Println(pargs...) } +} + +// Ensure that the tokens queue contains at least one token which can be +// returned to the Parser. +func yaml_parser_fetch_more_tokens(parser *yaml_parser_t) bool { + // While we need more tokens to fetch, do it. + for { + if parser.tokens_head != len(parser.tokens) { + // If queue is non-empty, check if any potential simple key may + // occupy the head position. + head_tok_idx, ok := parser.simple_keys_by_tok[parser.tokens_parsed] + if !ok { + break + } else if valid, ok := yaml_simple_key_is_valid(parser, &parser.simple_keys[head_tok_idx]); !ok { + return false + } else if !valid { + break + } + } + // Fetch the next token. + if !yaml_parser_fetch_next_token(parser) { + return false + } + } + + parser.token_available = true + return true +} + +// The dispatcher for token fetchers. +func yaml_parser_fetch_next_token(parser *yaml_parser_t) bool { + // Ensure that the buffer is initialized. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + + // Check if we just started scanning. Fetch STREAM-START then. + if !parser.stream_start_produced { + return yaml_parser_fetch_stream_start(parser) + } + + // Eat whitespaces and comments until we reach the next token. + if !yaml_parser_scan_to_next_token(parser) { + return false + } + + // Check the indentation level against the current column. + if !yaml_parser_unroll_indent(parser, parser.mark.column) { + return false + } + + // Ensure that the buffer contains at least 4 characters. 4 is the length + // of the longest indicators ('--- ' and '... '). + if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) { + return false + } + + // Is it the end of the stream? + if is_z(parser.buffer, parser.buffer_pos) { + return yaml_parser_fetch_stream_end(parser) + } + + // Is it a directive? + if parser.mark.column == 0 && parser.buffer[parser.buffer_pos] == '%' { + return yaml_parser_fetch_directive(parser) + } + + buf := parser.buffer + pos := parser.buffer_pos + + // Is it the document start indicator? + if parser.mark.column == 0 && buf[pos] == '-' && buf[pos+1] == '-' && buf[pos+2] == '-' && is_blankz(buf, pos+3) { + return yaml_parser_fetch_document_indicator(parser, yaml_DOCUMENT_START_TOKEN) + } + + // Is it the document end indicator? + if parser.mark.column == 0 && buf[pos] == '.' && buf[pos+1] == '.' && buf[pos+2] == '.' && is_blankz(buf, pos+3) { + return yaml_parser_fetch_document_indicator(parser, yaml_DOCUMENT_END_TOKEN) + } + + // Is it the flow sequence start indicator? + if buf[pos] == '[' { + return yaml_parser_fetch_flow_collection_start(parser, yaml_FLOW_SEQUENCE_START_TOKEN) + } + + // Is it the flow mapping start indicator? + if parser.buffer[parser.buffer_pos] == '{' { + return yaml_parser_fetch_flow_collection_start(parser, yaml_FLOW_MAPPING_START_TOKEN) + } + + // Is it the flow sequence end indicator? + if parser.buffer[parser.buffer_pos] == ']' { + return yaml_parser_fetch_flow_collection_end(parser, + yaml_FLOW_SEQUENCE_END_TOKEN) + } + + // Is it the flow mapping end indicator? + if parser.buffer[parser.buffer_pos] == '}' { + return yaml_parser_fetch_flow_collection_end(parser, + yaml_FLOW_MAPPING_END_TOKEN) + } + + // Is it the flow entry indicator? + if parser.buffer[parser.buffer_pos] == ',' { + return yaml_parser_fetch_flow_entry(parser) + } + + // Is it the block entry indicator? + if parser.buffer[parser.buffer_pos] == '-' && is_blankz(parser.buffer, parser.buffer_pos+1) { + return yaml_parser_fetch_block_entry(parser) + } + + // Is it the key indicator? + if parser.buffer[parser.buffer_pos] == '?' && (parser.flow_level > 0 || is_blankz(parser.buffer, parser.buffer_pos+1)) { + return yaml_parser_fetch_key(parser) + } + + // Is it the value indicator? + if parser.buffer[parser.buffer_pos] == ':' && (parser.flow_level > 0 || is_blankz(parser.buffer, parser.buffer_pos+1)) { + return yaml_parser_fetch_value(parser) + } + + // Is it an alias? + if parser.buffer[parser.buffer_pos] == '*' { + return yaml_parser_fetch_anchor(parser, yaml_ALIAS_TOKEN) + } + + // Is it an anchor? + if parser.buffer[parser.buffer_pos] == '&' { + return yaml_parser_fetch_anchor(parser, yaml_ANCHOR_TOKEN) + } + + // Is it a tag? + if parser.buffer[parser.buffer_pos] == '!' { + return yaml_parser_fetch_tag(parser) + } + + // Is it a literal scalar? + if parser.buffer[parser.buffer_pos] == '|' && parser.flow_level == 0 { + return yaml_parser_fetch_block_scalar(parser, true) + } + + // Is it a folded scalar? + if parser.buffer[parser.buffer_pos] == '>' && parser.flow_level == 0 { + return yaml_parser_fetch_block_scalar(parser, false) + } + + // Is it a single-quoted scalar? + if parser.buffer[parser.buffer_pos] == '\'' { + return yaml_parser_fetch_flow_scalar(parser, true) + } + + // Is it a double-quoted scalar? + if parser.buffer[parser.buffer_pos] == '"' { + return yaml_parser_fetch_flow_scalar(parser, false) + } + + // Is it a plain scalar? + // + // A plain scalar may start with any non-blank characters except + // + // '-', '?', ':', ',', '[', ']', '{', '}', + // '#', '&', '*', '!', '|', '>', '\'', '\"', + // '%', '@', '`'. + // + // In the block context (and, for the '-' indicator, in the flow context + // too), it may also start with the characters + // + // '-', '?', ':' + // + // if it is followed by a non-space character. + // + // The last rule is more restrictive than the specification requires. + // [Go] Make this logic more reasonable. + //switch parser.buffer[parser.buffer_pos] { + //case '-', '?', ':', ',', '?', '-', ',', ':', ']', '[', '}', '{', '&', '#', '!', '*', '>', '|', '"', '\'', '@', '%', '-', '`': + //} + if !(is_blankz(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == '-' || + parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == ':' || + parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == '[' || + parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '{' || + parser.buffer[parser.buffer_pos] == '}' || parser.buffer[parser.buffer_pos] == '#' || + parser.buffer[parser.buffer_pos] == '&' || parser.buffer[parser.buffer_pos] == '*' || + parser.buffer[parser.buffer_pos] == '!' || parser.buffer[parser.buffer_pos] == '|' || + parser.buffer[parser.buffer_pos] == '>' || parser.buffer[parser.buffer_pos] == '\'' || + parser.buffer[parser.buffer_pos] == '"' || parser.buffer[parser.buffer_pos] == '%' || + parser.buffer[parser.buffer_pos] == '@' || parser.buffer[parser.buffer_pos] == '`') || + (parser.buffer[parser.buffer_pos] == '-' && !is_blank(parser.buffer, parser.buffer_pos+1)) || + (parser.flow_level == 0 && + (parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == ':') && + !is_blankz(parser.buffer, parser.buffer_pos+1)) { + return yaml_parser_fetch_plain_scalar(parser) + } + + // If we don't determine the token type so far, it is an error. + return yaml_parser_set_scanner_error(parser, + "while scanning for the next token", parser.mark, + "found character that cannot start any token") +} + +func yaml_simple_key_is_valid(parser *yaml_parser_t, simple_key *yaml_simple_key_t) (valid, ok bool) { + if !simple_key.possible { + return false, true + } + + // The 1.2 specification says: + // + // "If the ? indicator is omitted, parsing needs to see past the + // implicit key to recognize it as such. To limit the amount of + // lookahead required, the “:” indicator must appear at most 1024 + // Unicode characters beyond the start of the key. In addition, the key + // is restricted to a single line." + // + if simple_key.mark.line < parser.mark.line || simple_key.mark.index+1024 < parser.mark.index { + // Check if the potential simple key to be removed is required. + if simple_key.required { + return false, yaml_parser_set_scanner_error(parser, + "while scanning a simple key", simple_key.mark, + "could not find expected ':'") + } + simple_key.possible = false + return false, true + } + return true, true +} + +// Check if a simple key may start at the current position and add it if +// needed. +func yaml_parser_save_simple_key(parser *yaml_parser_t) bool { + // A simple key is required at the current position if the scanner is in + // the block context and the current column coincides with the indentation + // level. + + required := parser.flow_level == 0 && parser.indent == parser.mark.column + + // + // If the current position may start a simple key, save it. + // + if parser.simple_key_allowed { + simple_key := yaml_simple_key_t{ + possible: true, + required: required, + token_number: parser.tokens_parsed + (len(parser.tokens) - parser.tokens_head), + mark: parser.mark, + } + + if !yaml_parser_remove_simple_key(parser) { + return false + } + parser.simple_keys[len(parser.simple_keys)-1] = simple_key + parser.simple_keys_by_tok[simple_key.token_number] = len(parser.simple_keys) - 1 + } + return true +} + +// Remove a potential simple key at the current flow level. +func yaml_parser_remove_simple_key(parser *yaml_parser_t) bool { + i := len(parser.simple_keys) - 1 + if parser.simple_keys[i].possible { + // If the key is required, it is an error. + if parser.simple_keys[i].required { + return yaml_parser_set_scanner_error(parser, + "while scanning a simple key", parser.simple_keys[i].mark, + "could not find expected ':'") + } + // Remove the key from the stack. + parser.simple_keys[i].possible = false + delete(parser.simple_keys_by_tok, parser.simple_keys[i].token_number) + } + return true +} + +// max_flow_level limits the flow_level +const max_flow_level = 10000 + +// Increase the flow level and resize the simple key list if needed. +func yaml_parser_increase_flow_level(parser *yaml_parser_t) bool { + // Reset the simple key on the next level. + parser.simple_keys = append(parser.simple_keys, yaml_simple_key_t{ + possible: false, + required: false, + token_number: parser.tokens_parsed + (len(parser.tokens) - parser.tokens_head), + mark: parser.mark, + }) + + // Increase the flow level. + parser.flow_level++ + if parser.flow_level > max_flow_level { + return yaml_parser_set_scanner_error(parser, + "while increasing flow level", parser.simple_keys[len(parser.simple_keys)-1].mark, + fmt.Sprintf("exceeded max depth of %d", max_flow_level)) + } + return true +} + +// Decrease the flow level. +func yaml_parser_decrease_flow_level(parser *yaml_parser_t) bool { + if parser.flow_level > 0 { + parser.flow_level-- + last := len(parser.simple_keys) - 1 + delete(parser.simple_keys_by_tok, parser.simple_keys[last].token_number) + parser.simple_keys = parser.simple_keys[:last] + } + return true +} + +// max_indents limits the indents stack size +const max_indents = 10000 + +// Push the current indentation level to the stack and set the new level +// the current column is greater than the indentation level. In this case, +// append or insert the specified token into the token queue. +func yaml_parser_roll_indent(parser *yaml_parser_t, column, number int, typ yaml_token_type_t, mark yaml_mark_t) bool { + // In the flow context, do nothing. + if parser.flow_level > 0 { + return true + } + + if parser.indent < column { + // Push the current indentation level to the stack and set the new + // indentation level. + parser.indents = append(parser.indents, parser.indent) + parser.indent = column + if len(parser.indents) > max_indents { + return yaml_parser_set_scanner_error(parser, + "while increasing indent level", parser.simple_keys[len(parser.simple_keys)-1].mark, + fmt.Sprintf("exceeded max depth of %d", max_indents)) + } + + // Create a token and insert it into the queue. + token := yaml_token_t{ + typ: typ, + start_mark: mark, + end_mark: mark, + } + if number > -1 { + number -= parser.tokens_parsed + } + yaml_insert_token(parser, number, &token) + } + return true +} + +// Pop indentation levels from the indents stack until the current level +// becomes less or equal to the column. For each indentation level, append +// the BLOCK-END token. +func yaml_parser_unroll_indent(parser *yaml_parser_t, column int) bool { + // In the flow context, do nothing. + if parser.flow_level > 0 { + return true + } + + // Loop through the indentation levels in the stack. + for parser.indent > column { + // Create a token and append it to the queue. + token := yaml_token_t{ + typ: yaml_BLOCK_END_TOKEN, + start_mark: parser.mark, + end_mark: parser.mark, + } + yaml_insert_token(parser, -1, &token) + + // Pop the indentation level. + parser.indent = parser.indents[len(parser.indents)-1] + parser.indents = parser.indents[:len(parser.indents)-1] + } + return true +} + +// Initialize the scanner and produce the STREAM-START token. +func yaml_parser_fetch_stream_start(parser *yaml_parser_t) bool { + + // Set the initial indentation. + parser.indent = -1 + + // Initialize the simple key stack. + parser.simple_keys = append(parser.simple_keys, yaml_simple_key_t{}) + + parser.simple_keys_by_tok = make(map[int]int) + + // A simple key is allowed at the beginning of the stream. + parser.simple_key_allowed = true + + // We have started. + parser.stream_start_produced = true + + // Create the STREAM-START token and append it to the queue. + token := yaml_token_t{ + typ: yaml_STREAM_START_TOKEN, + start_mark: parser.mark, + end_mark: parser.mark, + encoding: parser.encoding, + } + yaml_insert_token(parser, -1, &token) + return true +} + +// Produce the STREAM-END token and shut down the scanner. +func yaml_parser_fetch_stream_end(parser *yaml_parser_t) bool { + + // Force new line. + if parser.mark.column != 0 { + parser.mark.column = 0 + parser.mark.line++ + } + + // Reset the indentation level. + if !yaml_parser_unroll_indent(parser, -1) { + return false + } + + // Reset simple keys. + if !yaml_parser_remove_simple_key(parser) { + return false + } + + parser.simple_key_allowed = false + + // Create the STREAM-END token and append it to the queue. + token := yaml_token_t{ + typ: yaml_STREAM_END_TOKEN, + start_mark: parser.mark, + end_mark: parser.mark, + } + yaml_insert_token(parser, -1, &token) + return true +} + +// Produce a VERSION-DIRECTIVE or TAG-DIRECTIVE token. +func yaml_parser_fetch_directive(parser *yaml_parser_t) bool { + // Reset the indentation level. + if !yaml_parser_unroll_indent(parser, -1) { + return false + } + + // Reset simple keys. + if !yaml_parser_remove_simple_key(parser) { + return false + } + + parser.simple_key_allowed = false + + // Create the YAML-DIRECTIVE or TAG-DIRECTIVE token. + token := yaml_token_t{} + if !yaml_parser_scan_directive(parser, &token) { + return false + } + // Append the token to the queue. + yaml_insert_token(parser, -1, &token) + return true +} + +// Produce the DOCUMENT-START or DOCUMENT-END token. +func yaml_parser_fetch_document_indicator(parser *yaml_parser_t, typ yaml_token_type_t) bool { + // Reset the indentation level. + if !yaml_parser_unroll_indent(parser, -1) { + return false + } + + // Reset simple keys. + if !yaml_parser_remove_simple_key(parser) { + return false + } + + parser.simple_key_allowed = false + + // Consume the token. + start_mark := parser.mark + + skip(parser) + skip(parser) + skip(parser) + + end_mark := parser.mark + + // Create the DOCUMENT-START or DOCUMENT-END token. + token := yaml_token_t{ + typ: typ, + start_mark: start_mark, + end_mark: end_mark, + } + // Append the token to the queue. + yaml_insert_token(parser, -1, &token) + return true +} + +// Produce the FLOW-SEQUENCE-START or FLOW-MAPPING-START token. +func yaml_parser_fetch_flow_collection_start(parser *yaml_parser_t, typ yaml_token_type_t) bool { + // The indicators '[' and '{' may start a simple key. + if !yaml_parser_save_simple_key(parser) { + return false + } + + // Increase the flow level. + if !yaml_parser_increase_flow_level(parser) { + return false + } + + // A simple key may follow the indicators '[' and '{'. + parser.simple_key_allowed = true + + // Consume the token. + start_mark := parser.mark + skip(parser) + end_mark := parser.mark + + // Create the FLOW-SEQUENCE-START of FLOW-MAPPING-START token. + token := yaml_token_t{ + typ: typ, + start_mark: start_mark, + end_mark: end_mark, + } + // Append the token to the queue. + yaml_insert_token(parser, -1, &token) + return true +} + +// Produce the FLOW-SEQUENCE-END or FLOW-MAPPING-END token. +func yaml_parser_fetch_flow_collection_end(parser *yaml_parser_t, typ yaml_token_type_t) bool { + // Reset any potential simple key on the current flow level. + if !yaml_parser_remove_simple_key(parser) { + return false + } + + // Decrease the flow level. + if !yaml_parser_decrease_flow_level(parser) { + return false + } + + // No simple keys after the indicators ']' and '}'. + parser.simple_key_allowed = false + + // Consume the token. + + start_mark := parser.mark + skip(parser) + end_mark := parser.mark + + // Create the FLOW-SEQUENCE-END of FLOW-MAPPING-END token. + token := yaml_token_t{ + typ: typ, + start_mark: start_mark, + end_mark: end_mark, + } + // Append the token to the queue. + yaml_insert_token(parser, -1, &token) + return true +} + +// Produce the FLOW-ENTRY token. +func yaml_parser_fetch_flow_entry(parser *yaml_parser_t) bool { + // Reset any potential simple keys on the current flow level. + if !yaml_parser_remove_simple_key(parser) { + return false + } + + // Simple keys are allowed after ','. + parser.simple_key_allowed = true + + // Consume the token. + start_mark := parser.mark + skip(parser) + end_mark := parser.mark + + // Create the FLOW-ENTRY token and append it to the queue. + token := yaml_token_t{ + typ: yaml_FLOW_ENTRY_TOKEN, + start_mark: start_mark, + end_mark: end_mark, + } + yaml_insert_token(parser, -1, &token) + return true +} + +// Produce the BLOCK-ENTRY token. +func yaml_parser_fetch_block_entry(parser *yaml_parser_t) bool { + // Check if the scanner is in the block context. + if parser.flow_level == 0 { + // Check if we are allowed to start a new entry. + if !parser.simple_key_allowed { + return yaml_parser_set_scanner_error(parser, "", parser.mark, + "block sequence entries are not allowed in this context") + } + // Add the BLOCK-SEQUENCE-START token if needed. + if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_SEQUENCE_START_TOKEN, parser.mark) { + return false + } + } else { + // It is an error for the '-' indicator to occur in the flow context, + // but we let the Parser detect and report about it because the Parser + // is able to point to the context. + } + + // Reset any potential simple keys on the current flow level. + if !yaml_parser_remove_simple_key(parser) { + return false + } + + // Simple keys are allowed after '-'. + parser.simple_key_allowed = true + + // Consume the token. + start_mark := parser.mark + skip(parser) + end_mark := parser.mark + + // Create the BLOCK-ENTRY token and append it to the queue. + token := yaml_token_t{ + typ: yaml_BLOCK_ENTRY_TOKEN, + start_mark: start_mark, + end_mark: end_mark, + } + yaml_insert_token(parser, -1, &token) + return true +} + +// Produce the KEY token. +func yaml_parser_fetch_key(parser *yaml_parser_t) bool { + + // In the block context, additional checks are required. + if parser.flow_level == 0 { + // Check if we are allowed to start a new key (not nessesary simple). + if !parser.simple_key_allowed { + return yaml_parser_set_scanner_error(parser, "", parser.mark, + "mapping keys are not allowed in this context") + } + // Add the BLOCK-MAPPING-START token if needed. + if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_MAPPING_START_TOKEN, parser.mark) { + return false + } + } + + // Reset any potential simple keys on the current flow level. + if !yaml_parser_remove_simple_key(parser) { + return false + } + + // Simple keys are allowed after '?' in the block context. + parser.simple_key_allowed = parser.flow_level == 0 + + // Consume the token. + start_mark := parser.mark + skip(parser) + end_mark := parser.mark + + // Create the KEY token and append it to the queue. + token := yaml_token_t{ + typ: yaml_KEY_TOKEN, + start_mark: start_mark, + end_mark: end_mark, + } + yaml_insert_token(parser, -1, &token) + return true +} + +// Produce the VALUE token. +func yaml_parser_fetch_value(parser *yaml_parser_t) bool { + + simple_key := &parser.simple_keys[len(parser.simple_keys)-1] + + // Have we found a simple key? + if valid, ok := yaml_simple_key_is_valid(parser, simple_key); !ok { + return false + + } else if valid { + + // Create the KEY token and insert it into the queue. + token := yaml_token_t{ + typ: yaml_KEY_TOKEN, + start_mark: simple_key.mark, + end_mark: simple_key.mark, + } + yaml_insert_token(parser, simple_key.token_number-parser.tokens_parsed, &token) + + // In the block context, we may need to add the BLOCK-MAPPING-START token. + if !yaml_parser_roll_indent(parser, simple_key.mark.column, + simple_key.token_number, + yaml_BLOCK_MAPPING_START_TOKEN, simple_key.mark) { + return false + } + + // Remove the simple key. + simple_key.possible = false + delete(parser.simple_keys_by_tok, simple_key.token_number) + + // A simple key cannot follow another simple key. + parser.simple_key_allowed = false + + } else { + // The ':' indicator follows a complex key. + + // In the block context, extra checks are required. + if parser.flow_level == 0 { + + // Check if we are allowed to start a complex value. + if !parser.simple_key_allowed { + return yaml_parser_set_scanner_error(parser, "", parser.mark, + "mapping values are not allowed in this context") + } + + // Add the BLOCK-MAPPING-START token if needed. + if !yaml_parser_roll_indent(parser, parser.mark.column, -1, yaml_BLOCK_MAPPING_START_TOKEN, parser.mark) { + return false + } + } + + // Simple keys after ':' are allowed in the block context. + parser.simple_key_allowed = parser.flow_level == 0 + } + + // Consume the token. + start_mark := parser.mark + skip(parser) + end_mark := parser.mark + + // Create the VALUE token and append it to the queue. + token := yaml_token_t{ + typ: yaml_VALUE_TOKEN, + start_mark: start_mark, + end_mark: end_mark, + } + yaml_insert_token(parser, -1, &token) + return true +} + +// Produce the ALIAS or ANCHOR token. +func yaml_parser_fetch_anchor(parser *yaml_parser_t, typ yaml_token_type_t) bool { + // An anchor or an alias could be a simple key. + if !yaml_parser_save_simple_key(parser) { + return false + } + + // A simple key cannot follow an anchor or an alias. + parser.simple_key_allowed = false + + // Create the ALIAS or ANCHOR token and append it to the queue. + var token yaml_token_t + if !yaml_parser_scan_anchor(parser, &token, typ) { + return false + } + yaml_insert_token(parser, -1, &token) + return true +} + +// Produce the TAG token. +func yaml_parser_fetch_tag(parser *yaml_parser_t) bool { + // A tag could be a simple key. + if !yaml_parser_save_simple_key(parser) { + return false + } + + // A simple key cannot follow a tag. + parser.simple_key_allowed = false + + // Create the TAG token and append it to the queue. + var token yaml_token_t + if !yaml_parser_scan_tag(parser, &token) { + return false + } + yaml_insert_token(parser, -1, &token) + return true +} + +// Produce the SCALAR(...,literal) or SCALAR(...,folded) tokens. +func yaml_parser_fetch_block_scalar(parser *yaml_parser_t, literal bool) bool { + // Remove any potential simple keys. + if !yaml_parser_remove_simple_key(parser) { + return false + } + + // A simple key may follow a block scalar. + parser.simple_key_allowed = true + + // Create the SCALAR token and append it to the queue. + var token yaml_token_t + if !yaml_parser_scan_block_scalar(parser, &token, literal) { + return false + } + yaml_insert_token(parser, -1, &token) + return true +} + +// Produce the SCALAR(...,single-quoted) or SCALAR(...,double-quoted) tokens. +func yaml_parser_fetch_flow_scalar(parser *yaml_parser_t, single bool) bool { + // A plain scalar could be a simple key. + if !yaml_parser_save_simple_key(parser) { + return false + } + + // A simple key cannot follow a flow scalar. + parser.simple_key_allowed = false + + // Create the SCALAR token and append it to the queue. + var token yaml_token_t + if !yaml_parser_scan_flow_scalar(parser, &token, single) { + return false + } + yaml_insert_token(parser, -1, &token) + return true +} + +// Produce the SCALAR(...,plain) token. +func yaml_parser_fetch_plain_scalar(parser *yaml_parser_t) bool { + // A plain scalar could be a simple key. + if !yaml_parser_save_simple_key(parser) { + return false + } + + // A simple key cannot follow a flow scalar. + parser.simple_key_allowed = false + + // Create the SCALAR token and append it to the queue. + var token yaml_token_t + if !yaml_parser_scan_plain_scalar(parser, &token) { + return false + } + yaml_insert_token(parser, -1, &token) + return true +} + +// Eat whitespaces and comments until the next token is found. +func yaml_parser_scan_to_next_token(parser *yaml_parser_t) bool { + + // Until the next token is not found. + for { + // Allow the BOM mark to start a line. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + if parser.mark.column == 0 && is_bom(parser.buffer, parser.buffer_pos) { + skip(parser) + } + + // Eat whitespaces. + // Tabs are allowed: + // - in the flow context + // - in the block context, but not at the beginning of the line or + // after '-', '?', or ':' (complex value). + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + + for parser.buffer[parser.buffer_pos] == ' ' || ((parser.flow_level > 0 || !parser.simple_key_allowed) && parser.buffer[parser.buffer_pos] == '\t') { + skip(parser) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + + // Eat a comment until a line break. + if parser.buffer[parser.buffer_pos] == '#' { + for !is_breakz(parser.buffer, parser.buffer_pos) { + skip(parser) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + } + + // If it is a line break, eat it. + if is_break(parser.buffer, parser.buffer_pos) { + if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { + return false + } + skip_line(parser) + + // In the block context, a new line may start a simple key. + if parser.flow_level == 0 { + parser.simple_key_allowed = true + } + } else { + break // We have found a token. + } + } + + return true +} + +// Scan a YAML-DIRECTIVE or TAG-DIRECTIVE token. +// +// Scope: +// %YAML 1.1 # a comment \n +// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +// %TAG !yaml! tag:yaml.org,2002: \n +// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +// +func yaml_parser_scan_directive(parser *yaml_parser_t, token *yaml_token_t) bool { + // Eat '%'. + start_mark := parser.mark + skip(parser) + + // Scan the directive name. + var name []byte + if !yaml_parser_scan_directive_name(parser, start_mark, &name) { + return false + } + + // Is it a YAML directive? + if bytes.Equal(name, []byte("YAML")) { + // Scan the VERSION directive value. + var major, minor int8 + if !yaml_parser_scan_version_directive_value(parser, start_mark, &major, &minor) { + return false + } + end_mark := parser.mark + + // Create a VERSION-DIRECTIVE token. + *token = yaml_token_t{ + typ: yaml_VERSION_DIRECTIVE_TOKEN, + start_mark: start_mark, + end_mark: end_mark, + major: major, + minor: minor, + } + + // Is it a TAG directive? + } else if bytes.Equal(name, []byte("TAG")) { + // Scan the TAG directive value. + var handle, prefix []byte + if !yaml_parser_scan_tag_directive_value(parser, start_mark, &handle, &prefix) { + return false + } + end_mark := parser.mark + + // Create a TAG-DIRECTIVE token. + *token = yaml_token_t{ + typ: yaml_TAG_DIRECTIVE_TOKEN, + start_mark: start_mark, + end_mark: end_mark, + value: handle, + prefix: prefix, + } + + // Unknown directive. + } else { + yaml_parser_set_scanner_error(parser, "while scanning a directive", + start_mark, "found unknown directive name") + return false + } + + // Eat the rest of the line including any comments. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + + for is_blank(parser.buffer, parser.buffer_pos) { + skip(parser) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + + if parser.buffer[parser.buffer_pos] == '#' { + for !is_breakz(parser.buffer, parser.buffer_pos) { + skip(parser) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + } + + // Check if we are at the end of the line. + if !is_breakz(parser.buffer, parser.buffer_pos) { + yaml_parser_set_scanner_error(parser, "while scanning a directive", + start_mark, "did not find expected comment or line break") + return false + } + + // Eat a line break. + if is_break(parser.buffer, parser.buffer_pos) { + if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { + return false + } + skip_line(parser) + } + + return true +} + +// Scan the directive name. +// +// Scope: +// %YAML 1.1 # a comment \n +// ^^^^ +// %TAG !yaml! tag:yaml.org,2002: \n +// ^^^ +// +func yaml_parser_scan_directive_name(parser *yaml_parser_t, start_mark yaml_mark_t, name *[]byte) bool { + // Consume the directive name. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + + var s []byte + for is_alpha(parser.buffer, parser.buffer_pos) { + s = read(parser, s) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + + // Check if the name is empty. + if len(s) == 0 { + yaml_parser_set_scanner_error(parser, "while scanning a directive", + start_mark, "could not find expected directive name") + return false + } + + // Check for an blank character after the name. + if !is_blankz(parser.buffer, parser.buffer_pos) { + yaml_parser_set_scanner_error(parser, "while scanning a directive", + start_mark, "found unexpected non-alphabetical character") + return false + } + *name = s + return true +} + +// Scan the value of VERSION-DIRECTIVE. +// +// Scope: +// %YAML 1.1 # a comment \n +// ^^^^^^ +func yaml_parser_scan_version_directive_value(parser *yaml_parser_t, start_mark yaml_mark_t, major, minor *int8) bool { + // Eat whitespaces. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + for is_blank(parser.buffer, parser.buffer_pos) { + skip(parser) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + + // Consume the major version number. + if !yaml_parser_scan_version_directive_number(parser, start_mark, major) { + return false + } + + // Eat '.'. + if parser.buffer[parser.buffer_pos] != '.' { + return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive", + start_mark, "did not find expected digit or '.' character") + } + + skip(parser) + + // Consume the minor version number. + if !yaml_parser_scan_version_directive_number(parser, start_mark, minor) { + return false + } + return true +} + +const max_number_length = 2 + +// Scan the version number of VERSION-DIRECTIVE. +// +// Scope: +// %YAML 1.1 # a comment \n +// ^ +// %YAML 1.1 # a comment \n +// ^ +func yaml_parser_scan_version_directive_number(parser *yaml_parser_t, start_mark yaml_mark_t, number *int8) bool { + + // Repeat while the next character is digit. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + var value, length int8 + for is_digit(parser.buffer, parser.buffer_pos) { + // Check if the number is too long. + length++ + if length > max_number_length { + return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive", + start_mark, "found extremely long version number") + } + value = value*10 + int8(as_digit(parser.buffer, parser.buffer_pos)) + skip(parser) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + + // Check if the number was present. + if length == 0 { + return yaml_parser_set_scanner_error(parser, "while scanning a %YAML directive", + start_mark, "did not find expected version number") + } + *number = value + return true +} + +// Scan the value of a TAG-DIRECTIVE token. +// +// Scope: +// %TAG !yaml! tag:yaml.org,2002: \n +// ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +// +func yaml_parser_scan_tag_directive_value(parser *yaml_parser_t, start_mark yaml_mark_t, handle, prefix *[]byte) bool { + var handle_value, prefix_value []byte + + // Eat whitespaces. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + + for is_blank(parser.buffer, parser.buffer_pos) { + skip(parser) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + + // Scan a handle. + if !yaml_parser_scan_tag_handle(parser, true, start_mark, &handle_value) { + return false + } + + // Expect a whitespace. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + if !is_blank(parser.buffer, parser.buffer_pos) { + yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive", + start_mark, "did not find expected whitespace") + return false + } + + // Eat whitespaces. + for is_blank(parser.buffer, parser.buffer_pos) { + skip(parser) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + + // Scan a prefix. + if !yaml_parser_scan_tag_uri(parser, true, nil, start_mark, &prefix_value) { + return false + } + + // Expect a whitespace or line break. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + if !is_blankz(parser.buffer, parser.buffer_pos) { + yaml_parser_set_scanner_error(parser, "while scanning a %TAG directive", + start_mark, "did not find expected whitespace or line break") + return false + } + + *handle = handle_value + *prefix = prefix_value + return true +} + +func yaml_parser_scan_anchor(parser *yaml_parser_t, token *yaml_token_t, typ yaml_token_type_t) bool { + var s []byte + + // Eat the indicator character. + start_mark := parser.mark + skip(parser) + + // Consume the value. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + + for is_alpha(parser.buffer, parser.buffer_pos) { + s = read(parser, s) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + + end_mark := parser.mark + + /* + * Check if length of the anchor is greater than 0 and it is followed by + * a whitespace character or one of the indicators: + * + * '?', ':', ',', ']', '}', '%', '@', '`'. + */ + + if len(s) == 0 || + !(is_blankz(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == '?' || + parser.buffer[parser.buffer_pos] == ':' || parser.buffer[parser.buffer_pos] == ',' || + parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '}' || + parser.buffer[parser.buffer_pos] == '%' || parser.buffer[parser.buffer_pos] == '@' || + parser.buffer[parser.buffer_pos] == '`') { + context := "while scanning an alias" + if typ == yaml_ANCHOR_TOKEN { + context = "while scanning an anchor" + } + yaml_parser_set_scanner_error(parser, context, start_mark, + "did not find expected alphabetic or numeric character") + return false + } + + // Create a token. + *token = yaml_token_t{ + typ: typ, + start_mark: start_mark, + end_mark: end_mark, + value: s, + } + + return true +} + +/* + * Scan a TAG token. + */ + +func yaml_parser_scan_tag(parser *yaml_parser_t, token *yaml_token_t) bool { + var handle, suffix []byte + + start_mark := parser.mark + + // Check if the tag is in the canonical form. + if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { + return false + } + + if parser.buffer[parser.buffer_pos+1] == '<' { + // Keep the handle as '' + + // Eat '!<' + skip(parser) + skip(parser) + + // Consume the tag value. + if !yaml_parser_scan_tag_uri(parser, false, nil, start_mark, &suffix) { + return false + } + + // Check for '>' and eat it. + if parser.buffer[parser.buffer_pos] != '>' { + yaml_parser_set_scanner_error(parser, "while scanning a tag", + start_mark, "did not find the expected '>'") + return false + } + + skip(parser) + } else { + // The tag has either the '!suffix' or the '!handle!suffix' form. + + // First, try to scan a handle. + if !yaml_parser_scan_tag_handle(parser, false, start_mark, &handle) { + return false + } + + // Check if it is, indeed, handle. + if handle[0] == '!' && len(handle) > 1 && handle[len(handle)-1] == '!' { + // Scan the suffix now. + if !yaml_parser_scan_tag_uri(parser, false, nil, start_mark, &suffix) { + return false + } + } else { + // It wasn't a handle after all. Scan the rest of the tag. + if !yaml_parser_scan_tag_uri(parser, false, handle, start_mark, &suffix) { + return false + } + + // Set the handle to '!'. + handle = []byte{'!'} + + // A special case: the '!' tag. Set the handle to '' and the + // suffix to '!'. + if len(suffix) == 0 { + handle, suffix = suffix, handle + } + } + } + + // Check the character which ends the tag. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + if !is_blankz(parser.buffer, parser.buffer_pos) { + yaml_parser_set_scanner_error(parser, "while scanning a tag", + start_mark, "did not find expected whitespace or line break") + return false + } + + end_mark := parser.mark + + // Create a token. + *token = yaml_token_t{ + typ: yaml_TAG_TOKEN, + start_mark: start_mark, + end_mark: end_mark, + value: handle, + suffix: suffix, + } + return true +} + +// Scan a tag handle. +func yaml_parser_scan_tag_handle(parser *yaml_parser_t, directive bool, start_mark yaml_mark_t, handle *[]byte) bool { + // Check the initial '!' character. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + if parser.buffer[parser.buffer_pos] != '!' { + yaml_parser_set_scanner_tag_error(parser, directive, + start_mark, "did not find expected '!'") + return false + } + + var s []byte + + // Copy the '!' character. + s = read(parser, s) + + // Copy all subsequent alphabetical and numerical characters. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + for is_alpha(parser.buffer, parser.buffer_pos) { + s = read(parser, s) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + + // Check if the trailing character is '!' and copy it. + if parser.buffer[parser.buffer_pos] == '!' { + s = read(parser, s) + } else { + // It's either the '!' tag or not really a tag handle. If it's a %TAG + // directive, it's an error. If it's a tag token, it must be a part of URI. + if directive && string(s) != "!" { + yaml_parser_set_scanner_tag_error(parser, directive, + start_mark, "did not find expected '!'") + return false + } + } + + *handle = s + return true +} + +// Scan a tag. +func yaml_parser_scan_tag_uri(parser *yaml_parser_t, directive bool, head []byte, start_mark yaml_mark_t, uri *[]byte) bool { + //size_t length = head ? strlen((char *)head) : 0 + var s []byte + hasTag := len(head) > 0 + + // Copy the head if needed. + // + // Note that we don't copy the leading '!' character. + if len(head) > 1 { + s = append(s, head[1:]...) + } + + // Scan the tag. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + + // The set of characters that may appear in URI is as follows: + // + // '0'-'9', 'A'-'Z', 'a'-'z', '_', '-', ';', '/', '?', ':', '@', '&', + // '=', '+', '$', ',', '.', '!', '~', '*', '\'', '(', ')', '[', ']', + // '%'. + // [Go] Convert this into more reasonable logic. + for is_alpha(parser.buffer, parser.buffer_pos) || parser.buffer[parser.buffer_pos] == ';' || + parser.buffer[parser.buffer_pos] == '/' || parser.buffer[parser.buffer_pos] == '?' || + parser.buffer[parser.buffer_pos] == ':' || parser.buffer[parser.buffer_pos] == '@' || + parser.buffer[parser.buffer_pos] == '&' || parser.buffer[parser.buffer_pos] == '=' || + parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '$' || + parser.buffer[parser.buffer_pos] == ',' || parser.buffer[parser.buffer_pos] == '.' || + parser.buffer[parser.buffer_pos] == '!' || parser.buffer[parser.buffer_pos] == '~' || + parser.buffer[parser.buffer_pos] == '*' || parser.buffer[parser.buffer_pos] == '\'' || + parser.buffer[parser.buffer_pos] == '(' || parser.buffer[parser.buffer_pos] == ')' || + parser.buffer[parser.buffer_pos] == '[' || parser.buffer[parser.buffer_pos] == ']' || + parser.buffer[parser.buffer_pos] == '%' { + // Check if it is a URI-escape sequence. + if parser.buffer[parser.buffer_pos] == '%' { + if !yaml_parser_scan_uri_escapes(parser, directive, start_mark, &s) { + return false + } + } else { + s = read(parser, s) + } + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + hasTag = true + } + + if !hasTag { + yaml_parser_set_scanner_tag_error(parser, directive, + start_mark, "did not find expected tag URI") + return false + } + *uri = s + return true +} + +// Decode an URI-escape sequence corresponding to a single UTF-8 character. +func yaml_parser_scan_uri_escapes(parser *yaml_parser_t, directive bool, start_mark yaml_mark_t, s *[]byte) bool { + + // Decode the required number of characters. + w := 1024 + for w > 0 { + // Check for a URI-escaped octet. + if parser.unread < 3 && !yaml_parser_update_buffer(parser, 3) { + return false + } + + if !(parser.buffer[parser.buffer_pos] == '%' && + is_hex(parser.buffer, parser.buffer_pos+1) && + is_hex(parser.buffer, parser.buffer_pos+2)) { + return yaml_parser_set_scanner_tag_error(parser, directive, + start_mark, "did not find URI escaped octet") + } + + // Get the octet. + octet := byte((as_hex(parser.buffer, parser.buffer_pos+1) << 4) + as_hex(parser.buffer, parser.buffer_pos+2)) + + // If it is the leading octet, determine the length of the UTF-8 sequence. + if w == 1024 { + w = width(octet) + if w == 0 { + return yaml_parser_set_scanner_tag_error(parser, directive, + start_mark, "found an incorrect leading UTF-8 octet") + } + } else { + // Check if the trailing octet is correct. + if octet&0xC0 != 0x80 { + return yaml_parser_set_scanner_tag_error(parser, directive, + start_mark, "found an incorrect trailing UTF-8 octet") + } + } + + // Copy the octet and move the pointers. + *s = append(*s, octet) + skip(parser) + skip(parser) + skip(parser) + w-- + } + return true +} + +// Scan a block scalar. +func yaml_parser_scan_block_scalar(parser *yaml_parser_t, token *yaml_token_t, literal bool) bool { + // Eat the indicator '|' or '>'. + start_mark := parser.mark + skip(parser) + + // Scan the additional block scalar indicators. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + + // Check for a chomping indicator. + var chomping, increment int + if parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '-' { + // Set the chomping method and eat the indicator. + if parser.buffer[parser.buffer_pos] == '+' { + chomping = +1 + } else { + chomping = -1 + } + skip(parser) + + // Check for an indentation indicator. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + if is_digit(parser.buffer, parser.buffer_pos) { + // Check that the indentation is greater than 0. + if parser.buffer[parser.buffer_pos] == '0' { + yaml_parser_set_scanner_error(parser, "while scanning a block scalar", + start_mark, "found an indentation indicator equal to 0") + return false + } + + // Get the indentation level and eat the indicator. + increment = as_digit(parser.buffer, parser.buffer_pos) + skip(parser) + } + + } else if is_digit(parser.buffer, parser.buffer_pos) { + // Do the same as above, but in the opposite order. + + if parser.buffer[parser.buffer_pos] == '0' { + yaml_parser_set_scanner_error(parser, "while scanning a block scalar", + start_mark, "found an indentation indicator equal to 0") + return false + } + increment = as_digit(parser.buffer, parser.buffer_pos) + skip(parser) + + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + if parser.buffer[parser.buffer_pos] == '+' || parser.buffer[parser.buffer_pos] == '-' { + if parser.buffer[parser.buffer_pos] == '+' { + chomping = +1 + } else { + chomping = -1 + } + skip(parser) + } + } + + // Eat whitespaces and comments to the end of the line. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + for is_blank(parser.buffer, parser.buffer_pos) { + skip(parser) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + if parser.buffer[parser.buffer_pos] == '#' { + for !is_breakz(parser.buffer, parser.buffer_pos) { + skip(parser) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + } + + // Check if we are at the end of the line. + if !is_breakz(parser.buffer, parser.buffer_pos) { + yaml_parser_set_scanner_error(parser, "while scanning a block scalar", + start_mark, "did not find expected comment or line break") + return false + } + + // Eat a line break. + if is_break(parser.buffer, parser.buffer_pos) { + if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { + return false + } + skip_line(parser) + } + + end_mark := parser.mark + + // Set the indentation level if it was specified. + var indent int + if increment > 0 { + if parser.indent >= 0 { + indent = parser.indent + increment + } else { + indent = increment + } + } + + // Scan the leading line breaks and determine the indentation level if needed. + var s, leading_break, trailing_breaks []byte + if !yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, start_mark, &end_mark) { + return false + } + + // Scan the block scalar content. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + var leading_blank, trailing_blank bool + for parser.mark.column == indent && !is_z(parser.buffer, parser.buffer_pos) { + // We are at the beginning of a non-empty line. + + // Is it a trailing whitespace? + trailing_blank = is_blank(parser.buffer, parser.buffer_pos) + + // Check if we need to fold the leading line break. + if !literal && !leading_blank && !trailing_blank && len(leading_break) > 0 && leading_break[0] == '\n' { + // Do we need to join the lines by space? + if len(trailing_breaks) == 0 { + s = append(s, ' ') + } + } else { + s = append(s, leading_break...) + } + leading_break = leading_break[:0] + + // Append the remaining line breaks. + s = append(s, trailing_breaks...) + trailing_breaks = trailing_breaks[:0] + + // Is it a leading whitespace? + leading_blank = is_blank(parser.buffer, parser.buffer_pos) + + // Consume the current line. + for !is_breakz(parser.buffer, parser.buffer_pos) { + s = read(parser, s) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + + // Consume the line break. + if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { + return false + } + + leading_break = read_line(parser, leading_break) + + // Eat the following indentation spaces and line breaks. + if !yaml_parser_scan_block_scalar_breaks(parser, &indent, &trailing_breaks, start_mark, &end_mark) { + return false + } + } + + // Chomp the tail. + if chomping != -1 { + s = append(s, leading_break...) + } + if chomping == 1 { + s = append(s, trailing_breaks...) + } + + // Create a token. + *token = yaml_token_t{ + typ: yaml_SCALAR_TOKEN, + start_mark: start_mark, + end_mark: end_mark, + value: s, + style: yaml_LITERAL_SCALAR_STYLE, + } + if !literal { + token.style = yaml_FOLDED_SCALAR_STYLE + } + return true +} + +// Scan indentation spaces and line breaks for a block scalar. Determine the +// indentation level if needed. +func yaml_parser_scan_block_scalar_breaks(parser *yaml_parser_t, indent *int, breaks *[]byte, start_mark yaml_mark_t, end_mark *yaml_mark_t) bool { + *end_mark = parser.mark + + // Eat the indentation spaces and line breaks. + max_indent := 0 + for { + // Eat the indentation spaces. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + for (*indent == 0 || parser.mark.column < *indent) && is_space(parser.buffer, parser.buffer_pos) { + skip(parser) + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + if parser.mark.column > max_indent { + max_indent = parser.mark.column + } + + // Check for a tab character messing the indentation. + if (*indent == 0 || parser.mark.column < *indent) && is_tab(parser.buffer, parser.buffer_pos) { + return yaml_parser_set_scanner_error(parser, "while scanning a block scalar", + start_mark, "found a tab character where an indentation space is expected") + } + + // Have we found a non-empty line? + if !is_break(parser.buffer, parser.buffer_pos) { + break + } + + // Consume the line break. + if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { + return false + } + // [Go] Should really be returning breaks instead. + *breaks = read_line(parser, *breaks) + *end_mark = parser.mark + } + + // Determine the indentation level if needed. + if *indent == 0 { + *indent = max_indent + if *indent < parser.indent+1 { + *indent = parser.indent + 1 + } + if *indent < 1 { + *indent = 1 + } + } + return true +} + +// Scan a quoted scalar. +func yaml_parser_scan_flow_scalar(parser *yaml_parser_t, token *yaml_token_t, single bool) bool { + // Eat the left quote. + start_mark := parser.mark + skip(parser) + + // Consume the content of the quoted scalar. + var s, leading_break, trailing_breaks, whitespaces []byte + for { + // Check that there are no document indicators at the beginning of the line. + if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) { + return false + } + + if parser.mark.column == 0 && + ((parser.buffer[parser.buffer_pos+0] == '-' && + parser.buffer[parser.buffer_pos+1] == '-' && + parser.buffer[parser.buffer_pos+2] == '-') || + (parser.buffer[parser.buffer_pos+0] == '.' && + parser.buffer[parser.buffer_pos+1] == '.' && + parser.buffer[parser.buffer_pos+2] == '.')) && + is_blankz(parser.buffer, parser.buffer_pos+3) { + yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar", + start_mark, "found unexpected document indicator") + return false + } + + // Check for EOF. + if is_z(parser.buffer, parser.buffer_pos) { + yaml_parser_set_scanner_error(parser, "while scanning a quoted scalar", + start_mark, "found unexpected end of stream") + return false + } + + // Consume non-blank characters. + leading_blanks := false + for !is_blankz(parser.buffer, parser.buffer_pos) { + if single && parser.buffer[parser.buffer_pos] == '\'' && parser.buffer[parser.buffer_pos+1] == '\'' { + // Is is an escaped single quote. + s = append(s, '\'') + skip(parser) + skip(parser) + + } else if single && parser.buffer[parser.buffer_pos] == '\'' { + // It is a right single quote. + break + } else if !single && parser.buffer[parser.buffer_pos] == '"' { + // It is a right double quote. + break + + } else if !single && parser.buffer[parser.buffer_pos] == '\\' && is_break(parser.buffer, parser.buffer_pos+1) { + // It is an escaped line break. + if parser.unread < 3 && !yaml_parser_update_buffer(parser, 3) { + return false + } + skip(parser) + skip_line(parser) + leading_blanks = true + break + + } else if !single && parser.buffer[parser.buffer_pos] == '\\' { + // It is an escape sequence. + code_length := 0 + + // Check the escape character. + switch parser.buffer[parser.buffer_pos+1] { + case '0': + s = append(s, 0) + case 'a': + s = append(s, '\x07') + case 'b': + s = append(s, '\x08') + case 't', '\t': + s = append(s, '\x09') + case 'n': + s = append(s, '\x0A') + case 'v': + s = append(s, '\x0B') + case 'f': + s = append(s, '\x0C') + case 'r': + s = append(s, '\x0D') + case 'e': + s = append(s, '\x1B') + case ' ': + s = append(s, '\x20') + case '"': + s = append(s, '"') + case '\'': + s = append(s, '\'') + case '\\': + s = append(s, '\\') + case 'N': // NEL (#x85) + s = append(s, '\xC2') + s = append(s, '\x85') + case '_': // #xA0 + s = append(s, '\xC2') + s = append(s, '\xA0') + case 'L': // LS (#x2028) + s = append(s, '\xE2') + s = append(s, '\x80') + s = append(s, '\xA8') + case 'P': // PS (#x2029) + s = append(s, '\xE2') + s = append(s, '\x80') + s = append(s, '\xA9') + case 'x': + code_length = 2 + case 'u': + code_length = 4 + case 'U': + code_length = 8 + default: + yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar", + start_mark, "found unknown escape character") + return false + } + + skip(parser) + skip(parser) + + // Consume an arbitrary escape code. + if code_length > 0 { + var value int + + // Scan the character value. + if parser.unread < code_length && !yaml_parser_update_buffer(parser, code_length) { + return false + } + for k := 0; k < code_length; k++ { + if !is_hex(parser.buffer, parser.buffer_pos+k) { + yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar", + start_mark, "did not find expected hexdecimal number") + return false + } + value = (value << 4) + as_hex(parser.buffer, parser.buffer_pos+k) + } + + // Check the value and write the character. + if (value >= 0xD800 && value <= 0xDFFF) || value > 0x10FFFF { + yaml_parser_set_scanner_error(parser, "while parsing a quoted scalar", + start_mark, "found invalid Unicode character escape code") + return false + } + if value <= 0x7F { + s = append(s, byte(value)) + } else if value <= 0x7FF { + s = append(s, byte(0xC0+(value>>6))) + s = append(s, byte(0x80+(value&0x3F))) + } else if value <= 0xFFFF { + s = append(s, byte(0xE0+(value>>12))) + s = append(s, byte(0x80+((value>>6)&0x3F))) + s = append(s, byte(0x80+(value&0x3F))) + } else { + s = append(s, byte(0xF0+(value>>18))) + s = append(s, byte(0x80+((value>>12)&0x3F))) + s = append(s, byte(0x80+((value>>6)&0x3F))) + s = append(s, byte(0x80+(value&0x3F))) + } + + // Advance the pointer. + for k := 0; k < code_length; k++ { + skip(parser) + } + } + } else { + // It is a non-escaped non-blank character. + s = read(parser, s) + } + if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { + return false + } + } + + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + + // Check if we are at the end of the scalar. + if single { + if parser.buffer[parser.buffer_pos] == '\'' { + break + } + } else { + if parser.buffer[parser.buffer_pos] == '"' { + break + } + } + + // Consume blank characters. + for is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos) { + if is_blank(parser.buffer, parser.buffer_pos) { + // Consume a space or a tab character. + if !leading_blanks { + whitespaces = read(parser, whitespaces) + } else { + skip(parser) + } + } else { + if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { + return false + } + + // Check if it is a first line break. + if !leading_blanks { + whitespaces = whitespaces[:0] + leading_break = read_line(parser, leading_break) + leading_blanks = true + } else { + trailing_breaks = read_line(parser, trailing_breaks) + } + } + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + + // Join the whitespaces or fold line breaks. + if leading_blanks { + // Do we need to fold line breaks? + if len(leading_break) > 0 && leading_break[0] == '\n' { + if len(trailing_breaks) == 0 { + s = append(s, ' ') + } else { + s = append(s, trailing_breaks...) + } + } else { + s = append(s, leading_break...) + s = append(s, trailing_breaks...) + } + trailing_breaks = trailing_breaks[:0] + leading_break = leading_break[:0] + } else { + s = append(s, whitespaces...) + whitespaces = whitespaces[:0] + } + } + + // Eat the right quote. + skip(parser) + end_mark := parser.mark + + // Create a token. + *token = yaml_token_t{ + typ: yaml_SCALAR_TOKEN, + start_mark: start_mark, + end_mark: end_mark, + value: s, + style: yaml_SINGLE_QUOTED_SCALAR_STYLE, + } + if !single { + token.style = yaml_DOUBLE_QUOTED_SCALAR_STYLE + } + return true +} + +// Scan a plain scalar. +func yaml_parser_scan_plain_scalar(parser *yaml_parser_t, token *yaml_token_t) bool { + + var s, leading_break, trailing_breaks, whitespaces []byte + var leading_blanks bool + var indent = parser.indent + 1 + + start_mark := parser.mark + end_mark := parser.mark + + // Consume the content of the plain scalar. + for { + // Check for a document indicator. + if parser.unread < 4 && !yaml_parser_update_buffer(parser, 4) { + return false + } + if parser.mark.column == 0 && + ((parser.buffer[parser.buffer_pos+0] == '-' && + parser.buffer[parser.buffer_pos+1] == '-' && + parser.buffer[parser.buffer_pos+2] == '-') || + (parser.buffer[parser.buffer_pos+0] == '.' && + parser.buffer[parser.buffer_pos+1] == '.' && + parser.buffer[parser.buffer_pos+2] == '.')) && + is_blankz(parser.buffer, parser.buffer_pos+3) { + break + } + + // Check for a comment. + if parser.buffer[parser.buffer_pos] == '#' { + break + } + + // Consume non-blank characters. + for !is_blankz(parser.buffer, parser.buffer_pos) { + + // Check for indicators that may end a plain scalar. + if (parser.buffer[parser.buffer_pos] == ':' && is_blankz(parser.buffer, parser.buffer_pos+1)) || + (parser.flow_level > 0 && + (parser.buffer[parser.buffer_pos] == ',' || + parser.buffer[parser.buffer_pos] == '?' || parser.buffer[parser.buffer_pos] == '[' || + parser.buffer[parser.buffer_pos] == ']' || parser.buffer[parser.buffer_pos] == '{' || + parser.buffer[parser.buffer_pos] == '}')) { + break + } + + // Check if we need to join whitespaces and breaks. + if leading_blanks || len(whitespaces) > 0 { + if leading_blanks { + // Do we need to fold line breaks? + if leading_break[0] == '\n' { + if len(trailing_breaks) == 0 { + s = append(s, ' ') + } else { + s = append(s, trailing_breaks...) + } + } else { + s = append(s, leading_break...) + s = append(s, trailing_breaks...) + } + trailing_breaks = trailing_breaks[:0] + leading_break = leading_break[:0] + leading_blanks = false + } else { + s = append(s, whitespaces...) + whitespaces = whitespaces[:0] + } + } + + // Copy the character. + s = read(parser, s) + + end_mark = parser.mark + if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { + return false + } + } + + // Is it the end? + if !(is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos)) { + break + } + + // Consume blank characters. + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + + for is_blank(parser.buffer, parser.buffer_pos) || is_break(parser.buffer, parser.buffer_pos) { + if is_blank(parser.buffer, parser.buffer_pos) { + + // Check for tab characters that abuse indentation. + if leading_blanks && parser.mark.column < indent && is_tab(parser.buffer, parser.buffer_pos) { + yaml_parser_set_scanner_error(parser, "while scanning a plain scalar", + start_mark, "found a tab character that violates indentation") + return false + } + + // Consume a space or a tab character. + if !leading_blanks { + whitespaces = read(parser, whitespaces) + } else { + skip(parser) + } + } else { + if parser.unread < 2 && !yaml_parser_update_buffer(parser, 2) { + return false + } + + // Check if it is a first line break. + if !leading_blanks { + whitespaces = whitespaces[:0] + leading_break = read_line(parser, leading_break) + leading_blanks = true + } else { + trailing_breaks = read_line(parser, trailing_breaks) + } + } + if parser.unread < 1 && !yaml_parser_update_buffer(parser, 1) { + return false + } + } + + // Check indentation level. + if parser.flow_level == 0 && parser.mark.column < indent { + break + } + } + + // Create a token. + *token = yaml_token_t{ + typ: yaml_SCALAR_TOKEN, + start_mark: start_mark, + end_mark: end_mark, + value: s, + style: yaml_PLAIN_SCALAR_STYLE, + } + + // Note that we change the 'simple_key_allowed' flag. + if leading_blanks { + parser.simple_key_allowed = true + } + return true +} diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/sorter.go b/vendor/sigs.k8s.io/yaml/goyaml.v2/sorter.go new file mode 100644 index 0000000000000..4c45e660a8f2e --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/sorter.go @@ -0,0 +1,113 @@ +package yaml + +import ( + "reflect" + "unicode" +) + +type keyList []reflect.Value + +func (l keyList) Len() int { return len(l) } +func (l keyList) Swap(i, j int) { l[i], l[j] = l[j], l[i] } +func (l keyList) Less(i, j int) bool { + a := l[i] + b := l[j] + ak := a.Kind() + bk := b.Kind() + for (ak == reflect.Interface || ak == reflect.Ptr) && !a.IsNil() { + a = a.Elem() + ak = a.Kind() + } + for (bk == reflect.Interface || bk == reflect.Ptr) && !b.IsNil() { + b = b.Elem() + bk = b.Kind() + } + af, aok := keyFloat(a) + bf, bok := keyFloat(b) + if aok && bok { + if af != bf { + return af < bf + } + if ak != bk { + return ak < bk + } + return numLess(a, b) + } + if ak != reflect.String || bk != reflect.String { + return ak < bk + } + ar, br := []rune(a.String()), []rune(b.String()) + for i := 0; i < len(ar) && i < len(br); i++ { + if ar[i] == br[i] { + continue + } + al := unicode.IsLetter(ar[i]) + bl := unicode.IsLetter(br[i]) + if al && bl { + return ar[i] < br[i] + } + if al || bl { + return bl + } + var ai, bi int + var an, bn int64 + if ar[i] == '0' || br[i] == '0' { + for j := i-1; j >= 0 && unicode.IsDigit(ar[j]); j-- { + if ar[j] != '0' { + an = 1 + bn = 1 + break + } + } + } + for ai = i; ai < len(ar) && unicode.IsDigit(ar[ai]); ai++ { + an = an*10 + int64(ar[ai]-'0') + } + for bi = i; bi < len(br) && unicode.IsDigit(br[bi]); bi++ { + bn = bn*10 + int64(br[bi]-'0') + } + if an != bn { + return an < bn + } + if ai != bi { + return ai < bi + } + return ar[i] < br[i] + } + return len(ar) < len(br) +} + +// keyFloat returns a float value for v if it is a number/bool +// and whether it is a number/bool or not. +func keyFloat(v reflect.Value) (f float64, ok bool) { + switch v.Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return float64(v.Int()), true + case reflect.Float32, reflect.Float64: + return v.Float(), true + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: + return float64(v.Uint()), true + case reflect.Bool: + if v.Bool() { + return 1, true + } + return 0, true + } + return 0, false +} + +// numLess returns whether a < b. +// a and b must necessarily have the same kind. +func numLess(a, b reflect.Value) bool { + switch a.Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return a.Int() < b.Int() + case reflect.Float32, reflect.Float64: + return a.Float() < b.Float() + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: + return a.Uint() < b.Uint() + case reflect.Bool: + return !a.Bool() && b.Bool() + } + panic("not a number") +} diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/writerc.go b/vendor/sigs.k8s.io/yaml/goyaml.v2/writerc.go new file mode 100644 index 0000000000000..a2dde608cb7a3 --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/writerc.go @@ -0,0 +1,26 @@ +package yaml + +// Set the writer error and return false. +func yaml_emitter_set_writer_error(emitter *yaml_emitter_t, problem string) bool { + emitter.error = yaml_WRITER_ERROR + emitter.problem = problem + return false +} + +// Flush the output buffer. +func yaml_emitter_flush(emitter *yaml_emitter_t) bool { + if emitter.write_handler == nil { + panic("write handler not set") + } + + // Check if the buffer is empty. + if emitter.buffer_pos == 0 { + return true + } + + if err := emitter.write_handler(emitter, emitter.buffer[:emitter.buffer_pos]); err != nil { + return yaml_emitter_set_writer_error(emitter, "write error: "+err.Error()) + } + emitter.buffer_pos = 0 + return true +} diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/yaml.go b/vendor/sigs.k8s.io/yaml/goyaml.v2/yaml.go new file mode 100644 index 0000000000000..30813884c0679 --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/yaml.go @@ -0,0 +1,478 @@ +// Package yaml implements YAML support for the Go language. +// +// Source code and other details for the project are available at GitHub: +// +// https://github.com/go-yaml/yaml +// +package yaml + +import ( + "errors" + "fmt" + "io" + "reflect" + "strings" + "sync" +) + +// MapSlice encodes and decodes as a YAML map. +// The order of keys is preserved when encoding and decoding. +type MapSlice []MapItem + +// MapItem is an item in a MapSlice. +type MapItem struct { + Key, Value interface{} +} + +// The Unmarshaler interface may be implemented by types to customize their +// behavior when being unmarshaled from a YAML document. The UnmarshalYAML +// method receives a function that may be called to unmarshal the original +// YAML value into a field or variable. It is safe to call the unmarshal +// function parameter more than once if necessary. +type Unmarshaler interface { + UnmarshalYAML(unmarshal func(interface{}) error) error +} + +// The Marshaler interface may be implemented by types to customize their +// behavior when being marshaled into a YAML document. The returned value +// is marshaled in place of the original value implementing Marshaler. +// +// If an error is returned by MarshalYAML, the marshaling procedure stops +// and returns with the provided error. +type Marshaler interface { + MarshalYAML() (interface{}, error) +} + +// Unmarshal decodes the first document found within the in byte slice +// and assigns decoded values into the out value. +// +// Maps and pointers (to a struct, string, int, etc) are accepted as out +// values. If an internal pointer within a struct is not initialized, +// the yaml package will initialize it if necessary for unmarshalling +// the provided data. The out parameter must not be nil. +// +// The type of the decoded values should be compatible with the respective +// values in out. If one or more values cannot be decoded due to a type +// mismatches, decoding continues partially until the end of the YAML +// content, and a *yaml.TypeError is returned with details for all +// missed values. +// +// Struct fields are only unmarshalled if they are exported (have an +// upper case first letter), and are unmarshalled using the field name +// lowercased as the default key. Custom keys may be defined via the +// "yaml" name in the field tag: the content preceding the first comma +// is used as the key, and the following comma-separated options are +// used to tweak the marshalling process (see Marshal). +// Conflicting names result in a runtime error. +// +// For example: +// +// type T struct { +// F int `yaml:"a,omitempty"` +// B int +// } +// var t T +// yaml.Unmarshal([]byte("a: 1\nb: 2"), &t) +// +// See the documentation of Marshal for the format of tags and a list of +// supported tag options. +// +func Unmarshal(in []byte, out interface{}) (err error) { + return unmarshal(in, out, false) +} + +// UnmarshalStrict is like Unmarshal except that any fields that are found +// in the data that do not have corresponding struct members, or mapping +// keys that are duplicates, will result in +// an error. +func UnmarshalStrict(in []byte, out interface{}) (err error) { + return unmarshal(in, out, true) +} + +// A Decoder reads and decodes YAML values from an input stream. +type Decoder struct { + strict bool + parser *parser +} + +// NewDecoder returns a new decoder that reads from r. +// +// The decoder introduces its own buffering and may read +// data from r beyond the YAML values requested. +func NewDecoder(r io.Reader) *Decoder { + return &Decoder{ + parser: newParserFromReader(r), + } +} + +// SetStrict sets whether strict decoding behaviour is enabled when +// decoding items in the data (see UnmarshalStrict). By default, decoding is not strict. +func (dec *Decoder) SetStrict(strict bool) { + dec.strict = strict +} + +// Decode reads the next YAML-encoded value from its input +// and stores it in the value pointed to by v. +// +// See the documentation for Unmarshal for details about the +// conversion of YAML into a Go value. +func (dec *Decoder) Decode(v interface{}) (err error) { + d := newDecoder(dec.strict) + defer handleErr(&err) + node := dec.parser.parse() + if node == nil { + return io.EOF + } + out := reflect.ValueOf(v) + if out.Kind() == reflect.Ptr && !out.IsNil() { + out = out.Elem() + } + d.unmarshal(node, out) + if len(d.terrors) > 0 { + return &TypeError{d.terrors} + } + return nil +} + +func unmarshal(in []byte, out interface{}, strict bool) (err error) { + defer handleErr(&err) + d := newDecoder(strict) + p := newParser(in) + defer p.destroy() + node := p.parse() + if node != nil { + v := reflect.ValueOf(out) + if v.Kind() == reflect.Ptr && !v.IsNil() { + v = v.Elem() + } + d.unmarshal(node, v) + } + if len(d.terrors) > 0 { + return &TypeError{d.terrors} + } + return nil +} + +// Marshal serializes the value provided into a YAML document. The structure +// of the generated document will reflect the structure of the value itself. +// Maps and pointers (to struct, string, int, etc) are accepted as the in value. +// +// Struct fields are only marshalled if they are exported (have an upper case +// first letter), and are marshalled using the field name lowercased as the +// default key. Custom keys may be defined via the "yaml" name in the field +// tag: the content preceding the first comma is used as the key, and the +// following comma-separated options are used to tweak the marshalling process. +// Conflicting names result in a runtime error. +// +// The field tag format accepted is: +// +// `(...) yaml:"[][,[,]]" (...)` +// +// The following flags are currently supported: +// +// omitempty Only include the field if it's not set to the zero +// value for the type or to empty slices or maps. +// Zero valued structs will be omitted if all their public +// fields are zero, unless they implement an IsZero +// method (see the IsZeroer interface type), in which +// case the field will be excluded if IsZero returns true. +// +// flow Marshal using a flow style (useful for structs, +// sequences and maps). +// +// inline Inline the field, which must be a struct or a map, +// causing all of its fields or keys to be processed as if +// they were part of the outer struct. For maps, keys must +// not conflict with the yaml keys of other struct fields. +// +// In addition, if the key is "-", the field is ignored. +// +// For example: +// +// type T struct { +// F int `yaml:"a,omitempty"` +// B int +// } +// yaml.Marshal(&T{B: 2}) // Returns "b: 2\n" +// yaml.Marshal(&T{F: 1}} // Returns "a: 1\nb: 0\n" +// +func Marshal(in interface{}) (out []byte, err error) { + defer handleErr(&err) + e := newEncoder() + defer e.destroy() + e.marshalDoc("", reflect.ValueOf(in)) + e.finish() + out = e.out + return +} + +// An Encoder writes YAML values to an output stream. +type Encoder struct { + encoder *encoder +} + +// NewEncoder returns a new encoder that writes to w. +// The Encoder should be closed after use to flush all data +// to w. +func NewEncoder(w io.Writer) *Encoder { + return &Encoder{ + encoder: newEncoderWithWriter(w), + } +} + +// Encode writes the YAML encoding of v to the stream. +// If multiple items are encoded to the stream, the +// second and subsequent document will be preceded +// with a "---" document separator, but the first will not. +// +// See the documentation for Marshal for details about the conversion of Go +// values to YAML. +func (e *Encoder) Encode(v interface{}) (err error) { + defer handleErr(&err) + e.encoder.marshalDoc("", reflect.ValueOf(v)) + return nil +} + +// Close closes the encoder by writing any remaining data. +// It does not write a stream terminating string "...". +func (e *Encoder) Close() (err error) { + defer handleErr(&err) + e.encoder.finish() + return nil +} + +func handleErr(err *error) { + if v := recover(); v != nil { + if e, ok := v.(yamlError); ok { + *err = e.err + } else { + panic(v) + } + } +} + +type yamlError struct { + err error +} + +func fail(err error) { + panic(yamlError{err}) +} + +func failf(format string, args ...interface{}) { + panic(yamlError{fmt.Errorf("yaml: "+format, args...)}) +} + +// A TypeError is returned by Unmarshal when one or more fields in +// the YAML document cannot be properly decoded into the requested +// types. When this error is returned, the value is still +// unmarshaled partially. +type TypeError struct { + Errors []string +} + +func (e *TypeError) Error() string { + return fmt.Sprintf("yaml: unmarshal errors:\n %s", strings.Join(e.Errors, "\n ")) +} + +// -------------------------------------------------------------------------- +// Maintain a mapping of keys to structure field indexes + +// The code in this section was copied from mgo/bson. + +// structInfo holds details for the serialization of fields of +// a given struct. +type structInfo struct { + FieldsMap map[string]fieldInfo + FieldsList []fieldInfo + + // InlineMap is the number of the field in the struct that + // contains an ,inline map, or -1 if there's none. + InlineMap int +} + +type fieldInfo struct { + Key string + Num int + OmitEmpty bool + Flow bool + // Id holds the unique field identifier, so we can cheaply + // check for field duplicates without maintaining an extra map. + Id int + + // Inline holds the field index if the field is part of an inlined struct. + Inline []int +} + +var structMap = make(map[reflect.Type]*structInfo) +var fieldMapMutex sync.RWMutex + +func getStructInfo(st reflect.Type) (*structInfo, error) { + fieldMapMutex.RLock() + sinfo, found := structMap[st] + fieldMapMutex.RUnlock() + if found { + return sinfo, nil + } + + n := st.NumField() + fieldsMap := make(map[string]fieldInfo) + fieldsList := make([]fieldInfo, 0, n) + inlineMap := -1 + for i := 0; i != n; i++ { + field := st.Field(i) + if field.PkgPath != "" && !field.Anonymous { + continue // Private field + } + + info := fieldInfo{Num: i} + + tag := field.Tag.Get("yaml") + if tag == "" && strings.Index(string(field.Tag), ":") < 0 { + tag = string(field.Tag) + } + if tag == "-" { + continue + } + + inline := false + fields := strings.Split(tag, ",") + if len(fields) > 1 { + for _, flag := range fields[1:] { + switch flag { + case "omitempty": + info.OmitEmpty = true + case "flow": + info.Flow = true + case "inline": + inline = true + default: + return nil, errors.New(fmt.Sprintf("Unsupported flag %q in tag %q of type %s", flag, tag, st)) + } + } + tag = fields[0] + } + + if inline { + switch field.Type.Kind() { + case reflect.Map: + if inlineMap >= 0 { + return nil, errors.New("Multiple ,inline maps in struct " + st.String()) + } + if field.Type.Key() != reflect.TypeOf("") { + return nil, errors.New("Option ,inline needs a map with string keys in struct " + st.String()) + } + inlineMap = info.Num + case reflect.Struct: + sinfo, err := getStructInfo(field.Type) + if err != nil { + return nil, err + } + for _, finfo := range sinfo.FieldsList { + if _, found := fieldsMap[finfo.Key]; found { + msg := "Duplicated key '" + finfo.Key + "' in struct " + st.String() + return nil, errors.New(msg) + } + if finfo.Inline == nil { + finfo.Inline = []int{i, finfo.Num} + } else { + finfo.Inline = append([]int{i}, finfo.Inline...) + } + finfo.Id = len(fieldsList) + fieldsMap[finfo.Key] = finfo + fieldsList = append(fieldsList, finfo) + } + default: + //return nil, errors.New("Option ,inline needs a struct value or map field") + return nil, errors.New("Option ,inline needs a struct value field") + } + continue + } + + if tag != "" { + info.Key = tag + } else { + info.Key = strings.ToLower(field.Name) + } + + if _, found = fieldsMap[info.Key]; found { + msg := "Duplicated key '" + info.Key + "' in struct " + st.String() + return nil, errors.New(msg) + } + + info.Id = len(fieldsList) + fieldsList = append(fieldsList, info) + fieldsMap[info.Key] = info + } + + sinfo = &structInfo{ + FieldsMap: fieldsMap, + FieldsList: fieldsList, + InlineMap: inlineMap, + } + + fieldMapMutex.Lock() + structMap[st] = sinfo + fieldMapMutex.Unlock() + return sinfo, nil +} + +// IsZeroer is used to check whether an object is zero to +// determine whether it should be omitted when marshaling +// with the omitempty flag. One notable implementation +// is time.Time. +type IsZeroer interface { + IsZero() bool +} + +func isZero(v reflect.Value) bool { + kind := v.Kind() + if z, ok := v.Interface().(IsZeroer); ok { + if (kind == reflect.Ptr || kind == reflect.Interface) && v.IsNil() { + return true + } + return z.IsZero() + } + switch kind { + case reflect.String: + return len(v.String()) == 0 + case reflect.Interface, reflect.Ptr: + return v.IsNil() + case reflect.Slice: + return v.Len() == 0 + case reflect.Map: + return v.Len() == 0 + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return v.Int() == 0 + case reflect.Float32, reflect.Float64: + return v.Float() == 0 + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: + return v.Uint() == 0 + case reflect.Bool: + return !v.Bool() + case reflect.Struct: + vt := v.Type() + for i := v.NumField() - 1; i >= 0; i-- { + if vt.Field(i).PkgPath != "" { + continue // Private field + } + if !isZero(v.Field(i)) { + return false + } + } + return true + } + return false +} + +// FutureLineWrap globally disables line wrapping when encoding long strings. +// This is a temporary and thus deprecated method introduced to faciliate +// migration towards v3, which offers more control of line lengths on +// individual encodings, and has a default matching the behavior introduced +// by this function. +// +// The default formatting of v2 was erroneously changed in v2.3.0 and reverted +// in v2.4.0, at which point this function was introduced to help migration. +func FutureLineWrap() { + disableLineWrapping = true +} diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/yamlh.go b/vendor/sigs.k8s.io/yaml/goyaml.v2/yamlh.go new file mode 100644 index 0000000000000..f6a9c8e34b1ef --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/yamlh.go @@ -0,0 +1,739 @@ +package yaml + +import ( + "fmt" + "io" +) + +// The version directive data. +type yaml_version_directive_t struct { + major int8 // The major version number. + minor int8 // The minor version number. +} + +// The tag directive data. +type yaml_tag_directive_t struct { + handle []byte // The tag handle. + prefix []byte // The tag prefix. +} + +type yaml_encoding_t int + +// The stream encoding. +const ( + // Let the parser choose the encoding. + yaml_ANY_ENCODING yaml_encoding_t = iota + + yaml_UTF8_ENCODING // The default UTF-8 encoding. + yaml_UTF16LE_ENCODING // The UTF-16-LE encoding with BOM. + yaml_UTF16BE_ENCODING // The UTF-16-BE encoding with BOM. +) + +type yaml_break_t int + +// Line break types. +const ( + // Let the parser choose the break type. + yaml_ANY_BREAK yaml_break_t = iota + + yaml_CR_BREAK // Use CR for line breaks (Mac style). + yaml_LN_BREAK // Use LN for line breaks (Unix style). + yaml_CRLN_BREAK // Use CR LN for line breaks (DOS style). +) + +type yaml_error_type_t int + +// Many bad things could happen with the parser and emitter. +const ( + // No error is produced. + yaml_NO_ERROR yaml_error_type_t = iota + + yaml_MEMORY_ERROR // Cannot allocate or reallocate a block of memory. + yaml_READER_ERROR // Cannot read or decode the input stream. + yaml_SCANNER_ERROR // Cannot scan the input stream. + yaml_PARSER_ERROR // Cannot parse the input stream. + yaml_COMPOSER_ERROR // Cannot compose a YAML document. + yaml_WRITER_ERROR // Cannot write to the output stream. + yaml_EMITTER_ERROR // Cannot emit a YAML stream. +) + +// The pointer position. +type yaml_mark_t struct { + index int // The position index. + line int // The position line. + column int // The position column. +} + +// Node Styles + +type yaml_style_t int8 + +type yaml_scalar_style_t yaml_style_t + +// Scalar styles. +const ( + // Let the emitter choose the style. + yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = iota + + yaml_PLAIN_SCALAR_STYLE // The plain scalar style. + yaml_SINGLE_QUOTED_SCALAR_STYLE // The single-quoted scalar style. + yaml_DOUBLE_QUOTED_SCALAR_STYLE // The double-quoted scalar style. + yaml_LITERAL_SCALAR_STYLE // The literal scalar style. + yaml_FOLDED_SCALAR_STYLE // The folded scalar style. +) + +type yaml_sequence_style_t yaml_style_t + +// Sequence styles. +const ( + // Let the emitter choose the style. + yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota + + yaml_BLOCK_SEQUENCE_STYLE // The block sequence style. + yaml_FLOW_SEQUENCE_STYLE // The flow sequence style. +) + +type yaml_mapping_style_t yaml_style_t + +// Mapping styles. +const ( + // Let the emitter choose the style. + yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota + + yaml_BLOCK_MAPPING_STYLE // The block mapping style. + yaml_FLOW_MAPPING_STYLE // The flow mapping style. +) + +// Tokens + +type yaml_token_type_t int + +// Token types. +const ( + // An empty token. + yaml_NO_TOKEN yaml_token_type_t = iota + + yaml_STREAM_START_TOKEN // A STREAM-START token. + yaml_STREAM_END_TOKEN // A STREAM-END token. + + yaml_VERSION_DIRECTIVE_TOKEN // A VERSION-DIRECTIVE token. + yaml_TAG_DIRECTIVE_TOKEN // A TAG-DIRECTIVE token. + yaml_DOCUMENT_START_TOKEN // A DOCUMENT-START token. + yaml_DOCUMENT_END_TOKEN // A DOCUMENT-END token. + + yaml_BLOCK_SEQUENCE_START_TOKEN // A BLOCK-SEQUENCE-START token. + yaml_BLOCK_MAPPING_START_TOKEN // A BLOCK-SEQUENCE-END token. + yaml_BLOCK_END_TOKEN // A BLOCK-END token. + + yaml_FLOW_SEQUENCE_START_TOKEN // A FLOW-SEQUENCE-START token. + yaml_FLOW_SEQUENCE_END_TOKEN // A FLOW-SEQUENCE-END token. + yaml_FLOW_MAPPING_START_TOKEN // A FLOW-MAPPING-START token. + yaml_FLOW_MAPPING_END_TOKEN // A FLOW-MAPPING-END token. + + yaml_BLOCK_ENTRY_TOKEN // A BLOCK-ENTRY token. + yaml_FLOW_ENTRY_TOKEN // A FLOW-ENTRY token. + yaml_KEY_TOKEN // A KEY token. + yaml_VALUE_TOKEN // A VALUE token. + + yaml_ALIAS_TOKEN // An ALIAS token. + yaml_ANCHOR_TOKEN // An ANCHOR token. + yaml_TAG_TOKEN // A TAG token. + yaml_SCALAR_TOKEN // A SCALAR token. +) + +func (tt yaml_token_type_t) String() string { + switch tt { + case yaml_NO_TOKEN: + return "yaml_NO_TOKEN" + case yaml_STREAM_START_TOKEN: + return "yaml_STREAM_START_TOKEN" + case yaml_STREAM_END_TOKEN: + return "yaml_STREAM_END_TOKEN" + case yaml_VERSION_DIRECTIVE_TOKEN: + return "yaml_VERSION_DIRECTIVE_TOKEN" + case yaml_TAG_DIRECTIVE_TOKEN: + return "yaml_TAG_DIRECTIVE_TOKEN" + case yaml_DOCUMENT_START_TOKEN: + return "yaml_DOCUMENT_START_TOKEN" + case yaml_DOCUMENT_END_TOKEN: + return "yaml_DOCUMENT_END_TOKEN" + case yaml_BLOCK_SEQUENCE_START_TOKEN: + return "yaml_BLOCK_SEQUENCE_START_TOKEN" + case yaml_BLOCK_MAPPING_START_TOKEN: + return "yaml_BLOCK_MAPPING_START_TOKEN" + case yaml_BLOCK_END_TOKEN: + return "yaml_BLOCK_END_TOKEN" + case yaml_FLOW_SEQUENCE_START_TOKEN: + return "yaml_FLOW_SEQUENCE_START_TOKEN" + case yaml_FLOW_SEQUENCE_END_TOKEN: + return "yaml_FLOW_SEQUENCE_END_TOKEN" + case yaml_FLOW_MAPPING_START_TOKEN: + return "yaml_FLOW_MAPPING_START_TOKEN" + case yaml_FLOW_MAPPING_END_TOKEN: + return "yaml_FLOW_MAPPING_END_TOKEN" + case yaml_BLOCK_ENTRY_TOKEN: + return "yaml_BLOCK_ENTRY_TOKEN" + case yaml_FLOW_ENTRY_TOKEN: + return "yaml_FLOW_ENTRY_TOKEN" + case yaml_KEY_TOKEN: + return "yaml_KEY_TOKEN" + case yaml_VALUE_TOKEN: + return "yaml_VALUE_TOKEN" + case yaml_ALIAS_TOKEN: + return "yaml_ALIAS_TOKEN" + case yaml_ANCHOR_TOKEN: + return "yaml_ANCHOR_TOKEN" + case yaml_TAG_TOKEN: + return "yaml_TAG_TOKEN" + case yaml_SCALAR_TOKEN: + return "yaml_SCALAR_TOKEN" + } + return "" +} + +// The token structure. +type yaml_token_t struct { + // The token type. + typ yaml_token_type_t + + // The start/end of the token. + start_mark, end_mark yaml_mark_t + + // The stream encoding (for yaml_STREAM_START_TOKEN). + encoding yaml_encoding_t + + // The alias/anchor/scalar value or tag/tag directive handle + // (for yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN, yaml_TAG_TOKEN, yaml_TAG_DIRECTIVE_TOKEN). + value []byte + + // The tag suffix (for yaml_TAG_TOKEN). + suffix []byte + + // The tag directive prefix (for yaml_TAG_DIRECTIVE_TOKEN). + prefix []byte + + // The scalar style (for yaml_SCALAR_TOKEN). + style yaml_scalar_style_t + + // The version directive major/minor (for yaml_VERSION_DIRECTIVE_TOKEN). + major, minor int8 +} + +// Events + +type yaml_event_type_t int8 + +// Event types. +const ( + // An empty event. + yaml_NO_EVENT yaml_event_type_t = iota + + yaml_STREAM_START_EVENT // A STREAM-START event. + yaml_STREAM_END_EVENT // A STREAM-END event. + yaml_DOCUMENT_START_EVENT // A DOCUMENT-START event. + yaml_DOCUMENT_END_EVENT // A DOCUMENT-END event. + yaml_ALIAS_EVENT // An ALIAS event. + yaml_SCALAR_EVENT // A SCALAR event. + yaml_SEQUENCE_START_EVENT // A SEQUENCE-START event. + yaml_SEQUENCE_END_EVENT // A SEQUENCE-END event. + yaml_MAPPING_START_EVENT // A MAPPING-START event. + yaml_MAPPING_END_EVENT // A MAPPING-END event. +) + +var eventStrings = []string{ + yaml_NO_EVENT: "none", + yaml_STREAM_START_EVENT: "stream start", + yaml_STREAM_END_EVENT: "stream end", + yaml_DOCUMENT_START_EVENT: "document start", + yaml_DOCUMENT_END_EVENT: "document end", + yaml_ALIAS_EVENT: "alias", + yaml_SCALAR_EVENT: "scalar", + yaml_SEQUENCE_START_EVENT: "sequence start", + yaml_SEQUENCE_END_EVENT: "sequence end", + yaml_MAPPING_START_EVENT: "mapping start", + yaml_MAPPING_END_EVENT: "mapping end", +} + +func (e yaml_event_type_t) String() string { + if e < 0 || int(e) >= len(eventStrings) { + return fmt.Sprintf("unknown event %d", e) + } + return eventStrings[e] +} + +// The event structure. +type yaml_event_t struct { + + // The event type. + typ yaml_event_type_t + + // The start and end of the event. + start_mark, end_mark yaml_mark_t + + // The document encoding (for yaml_STREAM_START_EVENT). + encoding yaml_encoding_t + + // The version directive (for yaml_DOCUMENT_START_EVENT). + version_directive *yaml_version_directive_t + + // The list of tag directives (for yaml_DOCUMENT_START_EVENT). + tag_directives []yaml_tag_directive_t + + // The anchor (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_ALIAS_EVENT). + anchor []byte + + // The tag (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT). + tag []byte + + // The scalar value (for yaml_SCALAR_EVENT). + value []byte + + // Is the document start/end indicator implicit, or the tag optional? + // (for yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_SCALAR_EVENT). + implicit bool + + // Is the tag optional for any non-plain style? (for yaml_SCALAR_EVENT). + quoted_implicit bool + + // The style (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT). + style yaml_style_t +} + +func (e *yaml_event_t) scalar_style() yaml_scalar_style_t { return yaml_scalar_style_t(e.style) } +func (e *yaml_event_t) sequence_style() yaml_sequence_style_t { return yaml_sequence_style_t(e.style) } +func (e *yaml_event_t) mapping_style() yaml_mapping_style_t { return yaml_mapping_style_t(e.style) } + +// Nodes + +const ( + yaml_NULL_TAG = "tag:yaml.org,2002:null" // The tag !!null with the only possible value: null. + yaml_BOOL_TAG = "tag:yaml.org,2002:bool" // The tag !!bool with the values: true and false. + yaml_STR_TAG = "tag:yaml.org,2002:str" // The tag !!str for string values. + yaml_INT_TAG = "tag:yaml.org,2002:int" // The tag !!int for integer values. + yaml_FLOAT_TAG = "tag:yaml.org,2002:float" // The tag !!float for float values. + yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp" // The tag !!timestamp for date and time values. + + yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences. + yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping. + + // Not in original libyaml. + yaml_BINARY_TAG = "tag:yaml.org,2002:binary" + yaml_MERGE_TAG = "tag:yaml.org,2002:merge" + + yaml_DEFAULT_SCALAR_TAG = yaml_STR_TAG // The default scalar tag is !!str. + yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq. + yaml_DEFAULT_MAPPING_TAG = yaml_MAP_TAG // The default mapping tag is !!map. +) + +type yaml_node_type_t int + +// Node types. +const ( + // An empty node. + yaml_NO_NODE yaml_node_type_t = iota + + yaml_SCALAR_NODE // A scalar node. + yaml_SEQUENCE_NODE // A sequence node. + yaml_MAPPING_NODE // A mapping node. +) + +// An element of a sequence node. +type yaml_node_item_t int + +// An element of a mapping node. +type yaml_node_pair_t struct { + key int // The key of the element. + value int // The value of the element. +} + +// The node structure. +type yaml_node_t struct { + typ yaml_node_type_t // The node type. + tag []byte // The node tag. + + // The node data. + + // The scalar parameters (for yaml_SCALAR_NODE). + scalar struct { + value []byte // The scalar value. + length int // The length of the scalar value. + style yaml_scalar_style_t // The scalar style. + } + + // The sequence parameters (for YAML_SEQUENCE_NODE). + sequence struct { + items_data []yaml_node_item_t // The stack of sequence items. + style yaml_sequence_style_t // The sequence style. + } + + // The mapping parameters (for yaml_MAPPING_NODE). + mapping struct { + pairs_data []yaml_node_pair_t // The stack of mapping pairs (key, value). + pairs_start *yaml_node_pair_t // The beginning of the stack. + pairs_end *yaml_node_pair_t // The end of the stack. + pairs_top *yaml_node_pair_t // The top of the stack. + style yaml_mapping_style_t // The mapping style. + } + + start_mark yaml_mark_t // The beginning of the node. + end_mark yaml_mark_t // The end of the node. + +} + +// The document structure. +type yaml_document_t struct { + + // The document nodes. + nodes []yaml_node_t + + // The version directive. + version_directive *yaml_version_directive_t + + // The list of tag directives. + tag_directives_data []yaml_tag_directive_t + tag_directives_start int // The beginning of the tag directives list. + tag_directives_end int // The end of the tag directives list. + + start_implicit int // Is the document start indicator implicit? + end_implicit int // Is the document end indicator implicit? + + // The start/end of the document. + start_mark, end_mark yaml_mark_t +} + +// The prototype of a read handler. +// +// The read handler is called when the parser needs to read more bytes from the +// source. The handler should write not more than size bytes to the buffer. +// The number of written bytes should be set to the size_read variable. +// +// [in,out] data A pointer to an application data specified by +// yaml_parser_set_input(). +// [out] buffer The buffer to write the data from the source. +// [in] size The size of the buffer. +// [out] size_read The actual number of bytes read from the source. +// +// On success, the handler should return 1. If the handler failed, +// the returned value should be 0. On EOF, the handler should set the +// size_read to 0 and return 1. +type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error) + +// This structure holds information about a potential simple key. +type yaml_simple_key_t struct { + possible bool // Is a simple key possible? + required bool // Is a simple key required? + token_number int // The number of the token. + mark yaml_mark_t // The position mark. +} + +// The states of the parser. +type yaml_parser_state_t int + +const ( + yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota + + yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE // Expect the beginning of an implicit document. + yaml_PARSE_DOCUMENT_START_STATE // Expect DOCUMENT-START. + yaml_PARSE_DOCUMENT_CONTENT_STATE // Expect the content of a document. + yaml_PARSE_DOCUMENT_END_STATE // Expect DOCUMENT-END. + yaml_PARSE_BLOCK_NODE_STATE // Expect a block node. + yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE // Expect a block node or indentless sequence. + yaml_PARSE_FLOW_NODE_STATE // Expect a flow node. + yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE // Expect the first entry of a block sequence. + yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE // Expect an entry of a block sequence. + yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE // Expect an entry of an indentless sequence. + yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE // Expect the first key of a block mapping. + yaml_PARSE_BLOCK_MAPPING_KEY_STATE // Expect a block mapping key. + yaml_PARSE_BLOCK_MAPPING_VALUE_STATE // Expect a block mapping value. + yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE // Expect the first entry of a flow sequence. + yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE // Expect an entry of a flow sequence. + yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE // Expect a key of an ordered mapping. + yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE // Expect a value of an ordered mapping. + yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE // Expect the and of an ordered mapping entry. + yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE // Expect the first key of a flow mapping. + yaml_PARSE_FLOW_MAPPING_KEY_STATE // Expect a key of a flow mapping. + yaml_PARSE_FLOW_MAPPING_VALUE_STATE // Expect a value of a flow mapping. + yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE // Expect an empty value of a flow mapping. + yaml_PARSE_END_STATE // Expect nothing. +) + +func (ps yaml_parser_state_t) String() string { + switch ps { + case yaml_PARSE_STREAM_START_STATE: + return "yaml_PARSE_STREAM_START_STATE" + case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE: + return "yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE" + case yaml_PARSE_DOCUMENT_START_STATE: + return "yaml_PARSE_DOCUMENT_START_STATE" + case yaml_PARSE_DOCUMENT_CONTENT_STATE: + return "yaml_PARSE_DOCUMENT_CONTENT_STATE" + case yaml_PARSE_DOCUMENT_END_STATE: + return "yaml_PARSE_DOCUMENT_END_STATE" + case yaml_PARSE_BLOCK_NODE_STATE: + return "yaml_PARSE_BLOCK_NODE_STATE" + case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE: + return "yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE" + case yaml_PARSE_FLOW_NODE_STATE: + return "yaml_PARSE_FLOW_NODE_STATE" + case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE: + return "yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE" + case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE: + return "yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE" + case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE: + return "yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE" + case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE: + return "yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE" + case yaml_PARSE_BLOCK_MAPPING_KEY_STATE: + return "yaml_PARSE_BLOCK_MAPPING_KEY_STATE" + case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE: + return "yaml_PARSE_BLOCK_MAPPING_VALUE_STATE" + case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE: + return "yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE" + case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE: + return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE" + case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE: + return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE" + case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE: + return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE" + case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE: + return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE" + case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE: + return "yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE" + case yaml_PARSE_FLOW_MAPPING_KEY_STATE: + return "yaml_PARSE_FLOW_MAPPING_KEY_STATE" + case yaml_PARSE_FLOW_MAPPING_VALUE_STATE: + return "yaml_PARSE_FLOW_MAPPING_VALUE_STATE" + case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE: + return "yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE" + case yaml_PARSE_END_STATE: + return "yaml_PARSE_END_STATE" + } + return "" +} + +// This structure holds aliases data. +type yaml_alias_data_t struct { + anchor []byte // The anchor. + index int // The node id. + mark yaml_mark_t // The anchor mark. +} + +// The parser structure. +// +// All members are internal. Manage the structure using the +// yaml_parser_ family of functions. +type yaml_parser_t struct { + + // Error handling + + error yaml_error_type_t // Error type. + + problem string // Error description. + + // The byte about which the problem occurred. + problem_offset int + problem_value int + problem_mark yaml_mark_t + + // The error context. + context string + context_mark yaml_mark_t + + // Reader stuff + + read_handler yaml_read_handler_t // Read handler. + + input_reader io.Reader // File input data. + input []byte // String input data. + input_pos int + + eof bool // EOF flag + + buffer []byte // The working buffer. + buffer_pos int // The current position of the buffer. + + unread int // The number of unread characters in the buffer. + + raw_buffer []byte // The raw buffer. + raw_buffer_pos int // The current position of the buffer. + + encoding yaml_encoding_t // The input encoding. + + offset int // The offset of the current position (in bytes). + mark yaml_mark_t // The mark of the current position. + + // Scanner stuff + + stream_start_produced bool // Have we started to scan the input stream? + stream_end_produced bool // Have we reached the end of the input stream? + + flow_level int // The number of unclosed '[' and '{' indicators. + + tokens []yaml_token_t // The tokens queue. + tokens_head int // The head of the tokens queue. + tokens_parsed int // The number of tokens fetched from the queue. + token_available bool // Does the tokens queue contain a token ready for dequeueing. + + indent int // The current indentation level. + indents []int // The indentation levels stack. + + simple_key_allowed bool // May a simple key occur at the current position? + simple_keys []yaml_simple_key_t // The stack of simple keys. + simple_keys_by_tok map[int]int // possible simple_key indexes indexed by token_number + + // Parser stuff + + state yaml_parser_state_t // The current parser state. + states []yaml_parser_state_t // The parser states stack. + marks []yaml_mark_t // The stack of marks. + tag_directives []yaml_tag_directive_t // The list of TAG directives. + + // Dumper stuff + + aliases []yaml_alias_data_t // The alias data. + + document *yaml_document_t // The currently parsed document. +} + +// Emitter Definitions + +// The prototype of a write handler. +// +// The write handler is called when the emitter needs to flush the accumulated +// characters to the output. The handler should write @a size bytes of the +// @a buffer to the output. +// +// @param[in,out] data A pointer to an application data specified by +// yaml_emitter_set_output(). +// @param[in] buffer The buffer with bytes to be written. +// @param[in] size The size of the buffer. +// +// @returns On success, the handler should return @c 1. If the handler failed, +// the returned value should be @c 0. +// +type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error + +type yaml_emitter_state_t int + +// The emitter states. +const ( + // Expect STREAM-START. + yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota + + yaml_EMIT_FIRST_DOCUMENT_START_STATE // Expect the first DOCUMENT-START or STREAM-END. + yaml_EMIT_DOCUMENT_START_STATE // Expect DOCUMENT-START or STREAM-END. + yaml_EMIT_DOCUMENT_CONTENT_STATE // Expect the content of a document. + yaml_EMIT_DOCUMENT_END_STATE // Expect DOCUMENT-END. + yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE // Expect the first item of a flow sequence. + yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE // Expect an item of a flow sequence. + yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE // Expect the first key of a flow mapping. + yaml_EMIT_FLOW_MAPPING_KEY_STATE // Expect a key of a flow mapping. + yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a flow mapping. + yaml_EMIT_FLOW_MAPPING_VALUE_STATE // Expect a value of a flow mapping. + yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE // Expect the first item of a block sequence. + yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE // Expect an item of a block sequence. + yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE // Expect the first key of a block mapping. + yaml_EMIT_BLOCK_MAPPING_KEY_STATE // Expect the key of a block mapping. + yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a block mapping. + yaml_EMIT_BLOCK_MAPPING_VALUE_STATE // Expect a value of a block mapping. + yaml_EMIT_END_STATE // Expect nothing. +) + +// The emitter structure. +// +// All members are internal. Manage the structure using the @c yaml_emitter_ +// family of functions. +type yaml_emitter_t struct { + + // Error handling + + error yaml_error_type_t // Error type. + problem string // Error description. + + // Writer stuff + + write_handler yaml_write_handler_t // Write handler. + + output_buffer *[]byte // String output data. + output_writer io.Writer // File output data. + + buffer []byte // The working buffer. + buffer_pos int // The current position of the buffer. + + raw_buffer []byte // The raw buffer. + raw_buffer_pos int // The current position of the buffer. + + encoding yaml_encoding_t // The stream encoding. + + // Emitter stuff + + canonical bool // If the output is in the canonical style? + best_indent int // The number of indentation spaces. + best_width int // The preferred width of the output lines. + unicode bool // Allow unescaped non-ASCII characters? + line_break yaml_break_t // The preferred line break. + + state yaml_emitter_state_t // The current emitter state. + states []yaml_emitter_state_t // The stack of states. + + events []yaml_event_t // The event queue. + events_head int // The head of the event queue. + + indents []int // The stack of indentation levels. + + tag_directives []yaml_tag_directive_t // The list of tag directives. + + indent int // The current indentation level. + + flow_level int // The current flow level. + + root_context bool // Is it the document root context? + sequence_context bool // Is it a sequence context? + mapping_context bool // Is it a mapping context? + simple_key_context bool // Is it a simple mapping key context? + + line int // The current line. + column int // The current column. + whitespace bool // If the last character was a whitespace? + indention bool // If the last character was an indentation character (' ', '-', '?', ':')? + open_ended bool // If an explicit document end is required? + + // Anchor analysis. + anchor_data struct { + anchor []byte // The anchor value. + alias bool // Is it an alias? + } + + // Tag analysis. + tag_data struct { + handle []byte // The tag handle. + suffix []byte // The tag suffix. + } + + // Scalar analysis. + scalar_data struct { + value []byte // The scalar value. + multiline bool // Does the scalar contain line breaks? + flow_plain_allowed bool // Can the scalar be expessed in the flow plain style? + block_plain_allowed bool // Can the scalar be expressed in the block plain style? + single_quoted_allowed bool // Can the scalar be expressed in the single quoted style? + block_allowed bool // Can the scalar be expressed in the literal or folded styles? + style yaml_scalar_style_t // The output style. + } + + // Dumper stuff + + opened bool // If the stream was already opened? + closed bool // If the stream was already closed? + + // The information associated with the document nodes. + anchors *struct { + references int // The number of references. + anchor int // The anchor id. + serialized bool // If the node has been emitted? + } + + last_anchor_id int // The last assigned anchor id. + + document *yaml_document_t // The currently emitted document. +} diff --git a/vendor/sigs.k8s.io/yaml/goyaml.v2/yamlprivateh.go b/vendor/sigs.k8s.io/yaml/goyaml.v2/yamlprivateh.go new file mode 100644 index 0000000000000..8110ce3c37a6b --- /dev/null +++ b/vendor/sigs.k8s.io/yaml/goyaml.v2/yamlprivateh.go @@ -0,0 +1,173 @@ +package yaml + +const ( + // The size of the input raw buffer. + input_raw_buffer_size = 512 + + // The size of the input buffer. + // It should be possible to decode the whole raw buffer. + input_buffer_size = input_raw_buffer_size * 3 + + // The size of the output buffer. + output_buffer_size = 128 + + // The size of the output raw buffer. + // It should be possible to encode the whole output buffer. + output_raw_buffer_size = (output_buffer_size*2 + 2) + + // The size of other stacks and queues. + initial_stack_size = 16 + initial_queue_size = 16 + initial_string_size = 16 +) + +// Check if the character at the specified position is an alphabetical +// character, a digit, '_', or '-'. +func is_alpha(b []byte, i int) bool { + return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'Z' || b[i] >= 'a' && b[i] <= 'z' || b[i] == '_' || b[i] == '-' +} + +// Check if the character at the specified position is a digit. +func is_digit(b []byte, i int) bool { + return b[i] >= '0' && b[i] <= '9' +} + +// Get the value of a digit. +func as_digit(b []byte, i int) int { + return int(b[i]) - '0' +} + +// Check if the character at the specified position is a hex-digit. +func is_hex(b []byte, i int) bool { + return b[i] >= '0' && b[i] <= '9' || b[i] >= 'A' && b[i] <= 'F' || b[i] >= 'a' && b[i] <= 'f' +} + +// Get the value of a hex-digit. +func as_hex(b []byte, i int) int { + bi := b[i] + if bi >= 'A' && bi <= 'F' { + return int(bi) - 'A' + 10 + } + if bi >= 'a' && bi <= 'f' { + return int(bi) - 'a' + 10 + } + return int(bi) - '0' +} + +// Check if the character is ASCII. +func is_ascii(b []byte, i int) bool { + return b[i] <= 0x7F +} + +// Check if the character at the start of the buffer can be printed unescaped. +func is_printable(b []byte, i int) bool { + return ((b[i] == 0x0A) || // . == #x0A + (b[i] >= 0x20 && b[i] <= 0x7E) || // #x20 <= . <= #x7E + (b[i] == 0xC2 && b[i+1] >= 0xA0) || // #0xA0 <= . <= #xD7FF + (b[i] > 0xC2 && b[i] < 0xED) || + (b[i] == 0xED && b[i+1] < 0xA0) || + (b[i] == 0xEE) || + (b[i] == 0xEF && // #xE000 <= . <= #xFFFD + !(b[i+1] == 0xBB && b[i+2] == 0xBF) && // && . != #xFEFF + !(b[i+1] == 0xBF && (b[i+2] == 0xBE || b[i+2] == 0xBF)))) +} + +// Check if the character at the specified position is NUL. +func is_z(b []byte, i int) bool { + return b[i] == 0x00 +} + +// Check if the beginning of the buffer is a BOM. +func is_bom(b []byte, i int) bool { + return b[0] == 0xEF && b[1] == 0xBB && b[2] == 0xBF +} + +// Check if the character at the specified position is space. +func is_space(b []byte, i int) bool { + return b[i] == ' ' +} + +// Check if the character at the specified position is tab. +func is_tab(b []byte, i int) bool { + return b[i] == '\t' +} + +// Check if the character at the specified position is blank (space or tab). +func is_blank(b []byte, i int) bool { + //return is_space(b, i) || is_tab(b, i) + return b[i] == ' ' || b[i] == '\t' +} + +// Check if the character at the specified position is a line break. +func is_break(b []byte, i int) bool { + return (b[i] == '\r' || // CR (#xD) + b[i] == '\n' || // LF (#xA) + b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85) + b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028) + b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9) // PS (#x2029) +} + +func is_crlf(b []byte, i int) bool { + return b[i] == '\r' && b[i+1] == '\n' +} + +// Check if the character is a line break or NUL. +func is_breakz(b []byte, i int) bool { + //return is_break(b, i) || is_z(b, i) + return ( // is_break: + b[i] == '\r' || // CR (#xD) + b[i] == '\n' || // LF (#xA) + b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85) + b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028) + b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029) + // is_z: + b[i] == 0) +} + +// Check if the character is a line break, space, or NUL. +func is_spacez(b []byte, i int) bool { + //return is_space(b, i) || is_breakz(b, i) + return ( // is_space: + b[i] == ' ' || + // is_breakz: + b[i] == '\r' || // CR (#xD) + b[i] == '\n' || // LF (#xA) + b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85) + b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028) + b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029) + b[i] == 0) +} + +// Check if the character is a line break, space, tab, or NUL. +func is_blankz(b []byte, i int) bool { + //return is_blank(b, i) || is_breakz(b, i) + return ( // is_blank: + b[i] == ' ' || b[i] == '\t' || + // is_breakz: + b[i] == '\r' || // CR (#xD) + b[i] == '\n' || // LF (#xA) + b[i] == 0xC2 && b[i+1] == 0x85 || // NEL (#x85) + b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA8 || // LS (#x2028) + b[i] == 0xE2 && b[i+1] == 0x80 && b[i+2] == 0xA9 || // PS (#x2029) + b[i] == 0) +} + +// Determine the width of the character. +func width(b byte) int { + // Don't replace these by a switch without first + // confirming that it is being inlined. + if b&0x80 == 0x00 { + return 1 + } + if b&0xE0 == 0xC0 { + return 2 + } + if b&0xF0 == 0xE0 { + return 3 + } + if b&0xF8 == 0xF0 { + return 4 + } + return 0 + +} diff --git a/vendor/sigs.k8s.io/yaml/yaml.go b/vendor/sigs.k8s.io/yaml/yaml.go index efbc535d416e4..fc10246bdb235 100644 --- a/vendor/sigs.k8s.io/yaml/yaml.go +++ b/vendor/sigs.k8s.io/yaml/yaml.go @@ -1,3 +1,19 @@ +/* +Copyright 2021 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + package yaml import ( @@ -8,56 +24,59 @@ import ( "reflect" "strconv" - "gopkg.in/yaml.v2" + "sigs.k8s.io/yaml/goyaml.v2" ) -// Marshal marshals the object into JSON then converts JSON to YAML and returns the -// YAML. -func Marshal(o interface{}) ([]byte, error) { - j, err := json.Marshal(o) +// Marshal marshals obj into JSON using stdlib json.Marshal, and then converts JSON to YAML using JSONToYAML (see that method for more reference) +func Marshal(obj interface{}) ([]byte, error) { + jsonBytes, err := json.Marshal(obj) if err != nil { - return nil, fmt.Errorf("error marshaling into JSON: %v", err) + return nil, fmt.Errorf("error marshaling into JSON: %w", err) } - y, err := JSONToYAML(j) - if err != nil { - return nil, fmt.Errorf("error converting JSON to YAML: %v", err) - } - - return y, nil + return JSONToYAML(jsonBytes) } // JSONOpt is a decoding option for decoding from JSON format. type JSONOpt func(*json.Decoder) *json.Decoder -// Unmarshal converts YAML to JSON then uses JSON to unmarshal into an object, -// optionally configuring the behavior of the JSON unmarshal. -func Unmarshal(y []byte, o interface{}, opts ...JSONOpt) error { - return yamlUnmarshal(y, o, false, opts...) +// Unmarshal first converts the given YAML to JSON, and then unmarshals the JSON into obj. Options for the +// standard library json.Decoder can be optionally specified, e.g. to decode untyped numbers into json.Number instead of float64, or to disallow unknown fields (but for that purpose, see also UnmarshalStrict). obj must be a non-nil pointer. +// +// Important notes about the Unmarshal logic: +// +// - Decoding is case-insensitive, unlike the rest of Kubernetes API machinery, as this is using the stdlib json library. This might be confusing to users. +// - This decodes any number (although it is an integer) into a float64 if the type of obj is unknown, e.g. *map[string]interface{}, *interface{}, or *[]interface{}. This means integers above +/- 2^53 will lose precision when round-tripping. Make a JSONOpt that calls d.UseNumber() to avoid this. +// - Duplicate fields, including in-case-sensitive matches, are ignored in an undefined order. Note that the YAML specification forbids duplicate fields, so this logic is more permissive than it needs to. See UnmarshalStrict for an alternative. +// - Unknown fields, i.e. serialized data that do not map to a field in obj, are ignored. Use d.DisallowUnknownFields() or UnmarshalStrict to override. +// - As per the YAML 1.1 specification, which yaml.v2 used underneath implements, literal 'yes' and 'no' strings without quotation marks will be converted to true/false implicitly. +// - YAML non-string keys, e.g. ints, bools and floats, are converted to strings implicitly during the YAML to JSON conversion process. +// - There are no compatibility guarantees for returned error values. +func Unmarshal(yamlBytes []byte, obj interface{}, opts ...JSONOpt) error { + return unmarshal(yamlBytes, obj, yaml.Unmarshal, opts...) } -// UnmarshalStrict strictly converts YAML to JSON then uses JSON to unmarshal -// into an object, optionally configuring the behavior of the JSON unmarshal. -func UnmarshalStrict(y []byte, o interface{}, opts ...JSONOpt) error { - return yamlUnmarshal(y, o, true, append(opts, DisallowUnknownFields)...) +// UnmarshalStrict is similar to Unmarshal (please read its documentation for reference), with the following exceptions: +// +// - Duplicate fields in an object yield an error. This is according to the YAML specification. +// - If obj, or any of its recursive children, is a struct, presence of fields in the serialized data unknown to the struct will yield an error. +func UnmarshalStrict(yamlBytes []byte, obj interface{}, opts ...JSONOpt) error { + return unmarshal(yamlBytes, obj, yaml.UnmarshalStrict, append(opts, DisallowUnknownFields)...) } -// yamlUnmarshal unmarshals the given YAML byte stream into the given interface, +// unmarshal unmarshals the given YAML byte stream into the given interface, // optionally performing the unmarshalling strictly -func yamlUnmarshal(y []byte, o interface{}, strict bool, opts ...JSONOpt) error { - vo := reflect.ValueOf(o) - unmarshalFn := yaml.Unmarshal - if strict { - unmarshalFn = yaml.UnmarshalStrict - } - j, err := yamlToJSON(y, &vo, unmarshalFn) +func unmarshal(yamlBytes []byte, obj interface{}, unmarshalFn func([]byte, interface{}) error, opts ...JSONOpt) error { + jsonTarget := reflect.ValueOf(obj) + + jsonBytes, err := yamlToJSONTarget(yamlBytes, &jsonTarget, unmarshalFn) if err != nil { - return fmt.Errorf("error converting YAML to JSON: %v", err) + return fmt.Errorf("error converting YAML to JSON: %w", err) } - err = jsonUnmarshal(bytes.NewReader(j), o, opts...) + err = jsonUnmarshal(bytes.NewReader(jsonBytes), obj, opts...) if err != nil { - return fmt.Errorf("error unmarshaling JSON: %v", err) + return fmt.Errorf("error unmarshaling JSON: %w", err) } return nil @@ -67,21 +86,26 @@ func yamlUnmarshal(y []byte, o interface{}, strict bool, opts ...JSONOpt) error // object, optionally applying decoder options prior to decoding. We are not // using json.Unmarshal directly as we want the chance to pass in non-default // options. -func jsonUnmarshal(r io.Reader, o interface{}, opts ...JSONOpt) error { - d := json.NewDecoder(r) +func jsonUnmarshal(reader io.Reader, obj interface{}, opts ...JSONOpt) error { + d := json.NewDecoder(reader) for _, opt := range opts { d = opt(d) } - if err := d.Decode(&o); err != nil { + if err := d.Decode(&obj); err != nil { return fmt.Errorf("while decoding JSON: %v", err) } return nil } -// JSONToYAML Converts JSON to YAML. +// JSONToYAML converts JSON to YAML. Notable implementation details: +// +// - Duplicate fields, are case-sensitively ignored in an undefined order. +// - The sequence indentation style is compact, which means that the "- " marker for a YAML sequence will be on the same indentation level as the sequence field name. +// - Unlike Unmarshal, all integers, up to 64 bits, are preserved during this round-trip. func JSONToYAML(j []byte) ([]byte, error) { // Convert the JSON to an object. var jsonObj interface{} + // We are using yaml.Unmarshal here (instead of json.Unmarshal) because the // Go JSON library doesn't try to pick the right number type (int, float, // etc.) when unmarshalling to interface{}, it just picks float64 @@ -93,35 +117,46 @@ func JSONToYAML(j []byte) ([]byte, error) { } // Marshal this object into YAML. - return yaml.Marshal(jsonObj) + yamlBytes, err := yaml.Marshal(jsonObj) + if err != nil { + return nil, err + } + + return yamlBytes, nil } // YAMLToJSON converts YAML to JSON. Since JSON is a subset of YAML, // passing JSON through this method should be a no-op. // -// Things YAML can do that are not supported by JSON: -// * In YAML you can have binary and null keys in your maps. These are invalid -// in JSON. (int and float keys are converted to strings.) -// * Binary data in YAML with the !!binary tag is not supported. If you want to -// use binary data with this library, encode the data as base64 as usual but do -// not use the !!binary tag in your YAML. This will ensure the original base64 -// encoded data makes it all the way through to the JSON. +// Some things YAML can do that are not supported by JSON: +// - In YAML you can have binary and null keys in your maps. These are invalid +// in JSON, and therefore int, bool and float keys are converted to strings implicitly. +// - Binary data in YAML with the !!binary tag is not supported. If you want to +// use binary data with this library, encode the data as base64 as usual but do +// not use the !!binary tag in your YAML. This will ensure the original base64 +// encoded data makes it all the way through to the JSON. +// - And more... read the YAML specification for more details. +// +// Notable about the implementation: // -// For strict decoding of YAML, use YAMLToJSONStrict. +// - Duplicate fields are case-sensitively ignored in an undefined order. Note that the YAML specification forbids duplicate fields, so this logic is more permissive than it needs to. See YAMLToJSONStrict for an alternative. +// - As per the YAML 1.1 specification, which yaml.v2 used underneath implements, literal 'yes' and 'no' strings without quotation marks will be converted to true/false implicitly. +// - Unlike Unmarshal, all integers, up to 64 bits, are preserved during this round-trip. +// - There are no compatibility guarantees for returned error values. func YAMLToJSON(y []byte) ([]byte, error) { - return yamlToJSON(y, nil, yaml.Unmarshal) + return yamlToJSONTarget(y, nil, yaml.Unmarshal) } // YAMLToJSONStrict is like YAMLToJSON but enables strict YAML decoding, // returning an error on any duplicate field names. func YAMLToJSONStrict(y []byte) ([]byte, error) { - return yamlToJSON(y, nil, yaml.UnmarshalStrict) + return yamlToJSONTarget(y, nil, yaml.UnmarshalStrict) } -func yamlToJSON(y []byte, jsonTarget *reflect.Value, yamlUnmarshal func([]byte, interface{}) error) ([]byte, error) { +func yamlToJSONTarget(yamlBytes []byte, jsonTarget *reflect.Value, unmarshalFn func([]byte, interface{}) error) ([]byte, error) { // Convert the YAML to an object. var yamlObj interface{} - err := yamlUnmarshal(y, &yamlObj) + err := unmarshalFn(yamlBytes, &yamlObj) if err != nil { return nil, err } @@ -136,7 +171,11 @@ func yamlToJSON(y []byte, jsonTarget *reflect.Value, yamlUnmarshal func([]byte, } // Convert this object to JSON and return the data. - return json.Marshal(jsonObj) + jsonBytes, err := json.Marshal(jsonObj) + if err != nil { + return nil, err + } + return jsonBytes, nil } func convertToJSONableObject(yamlObj interface{}, jsonTarget *reflect.Value) (interface{}, error) { @@ -147,13 +186,13 @@ func convertToJSONableObject(yamlObj interface{}, jsonTarget *reflect.Value) (in // decoding into the value, we're just checking if the ultimate target is a // string. if jsonTarget != nil { - ju, tu, pv := indirect(*jsonTarget, false) + jsonUnmarshaler, textUnmarshaler, pointerValue := indirect(*jsonTarget, false) // We have a JSON or Text Umarshaler at this level, so we can't be trying // to decode into a string. - if ju != nil || tu != nil { + if jsonUnmarshaler != nil || textUnmarshaler != nil { jsonTarget = nil } else { - jsonTarget = &pv + jsonTarget = &pointerValue } } @@ -205,7 +244,7 @@ func convertToJSONableObject(yamlObj interface{}, jsonTarget *reflect.Value) (in keyString = "false" } default: - return nil, fmt.Errorf("Unsupported map key of type: %s, key: %+#v, value: %+#v", + return nil, fmt.Errorf("unsupported map key of type: %s, key: %+#v, value: %+#v", reflect.TypeOf(k), k, v) } diff --git a/vendor/sigs.k8s.io/yaml/yaml_go110.go b/vendor/sigs.k8s.io/yaml/yaml_go110.go index ab3e06a222a6d..94abc1719dc77 100644 --- a/vendor/sigs.k8s.io/yaml/yaml_go110.go +++ b/vendor/sigs.k8s.io/yaml/yaml_go110.go @@ -1,7 +1,24 @@ // This file contains changes that are only compatible with go 1.10 and onwards. +//go:build go1.10 // +build go1.10 +/* +Copyright 2021 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + package yaml import "encoding/json"