Initial commit.

.github/dependabot.yml

@@ -0,0 +1,12 @@
+---
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/test.yml

@@ -0,0 +1,45 @@
+---
+name: Tests
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: "go.mod"
+          check-latest: true
+
+      - name: Build
+        run: go build -v ./...
+
+  codechecks:
+    name: Code checks
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: "go.mod"
+          check-latest: true
+
+      - name: Lint
+        uses: golangci/golangci-lint-action@v6
+        with:
+          args: --out-format=github-actions,line-number

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Brad Cowie
+
+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.

README.md

@@ -0,0 +1,47 @@
+Hurricane Electric module for Caddy
+===================================
+
+This package contains a DNS provider module for [Caddy](https://github.com/caddyserver/caddy).
+It can be used to manage DNS records with [Hurricane Electric](https://dns.he.net/).
+
+## Caddy module name
+
+```
+dns.providers.he
+```
+
+## Config examples
+
+To use this module for the ACME DNS challenge, [configure the ACME issuer in your Caddy JSON](https://caddyserver.com/docs/json/apps/tls/automation/policies/issuer/acme/) like so:
+
+```json
+{
+	"module": "acme",
+	"challenges": {
+		"dns": {
+			"provider": {
+				"name": "he",
+				"api_key": "API_KEY"
+			}
+		}
+	}
+}
+```
+
+or with the Caddyfile:
+
+```
+# globally
+{
+	acme_dns he API_KEY
+}
+```
+
+```
+# one site
+tls {
+	dns he {
+            api_key API_KEY
+        }
+}
+```

go.mod

@@ -0,0 +1,46 @@
+module github.com/caddy-dns/he
+
+go 1.20
+
+require (
+	github.com/caddyserver/caddy/v2 v2.7.6
+	github.com/libdns/he v1.0.0
+)
+
+require (
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/caddyserver/certmagic v0.20.0 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1 // indirect
+	github.com/google/uuid v1.3.1 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.5 // indirect
+	github.com/libdns/libdns v0.2.2 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
+	github.com/mholt/acmez v1.2.0 // indirect
+	github.com/miekg/dns v1.1.55 // indirect
+	github.com/onsi/ginkgo/v2 v2.9.5 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/prometheus/client_golang v1.15.1 // indirect
+	github.com/prometheus/client_model v0.4.0 // indirect
+	github.com/prometheus/common v0.42.0 // indirect
+	github.com/prometheus/procfs v0.9.0 // indirect
+	github.com/quic-go/qpack v0.4.0 // indirect
+	github.com/quic-go/qtls-go1-20 v0.4.1 // indirect
+	github.com/quic-go/quic-go v0.40.0 // indirect
+	github.com/zeebo/blake3 v0.2.3 // indirect
+	go.uber.org/mock v0.3.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.25.0 // indirect
+	golang.org/x/crypto v0.14.0 // indirect
+	golang.org/x/exp v0.0.0-20230310171629-522b1b587ee0 // indirect
+	golang.org/x/mod v0.11.0 // indirect
+	golang.org/x/net v0.17.0 // indirect
+	golang.org/x/sys v0.14.0 // indirect
+	golang.org/x/term v0.13.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
+	golang.org/x/time v0.5.0 // indirect
+	golang.org/x/tools v0.10.0 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
+)

go.sum

@@ -0,0 +1,109 @@
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+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
+google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

module.go

@@ -0,0 +1,70 @@
+package he
+
+import (
+	"github.com/caddyserver/caddy/v2"
+	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
+	libdnshe "github.com/libdns/he"
+)
+
+// Provider lets Caddy read and manipulate DNS records hosted by this DNS provider.
+type Provider struct{ *libdnshe.Provider }
+
+func init() {
+	caddy.RegisterModule(Provider{})
+}
+
+// CaddyModule returns the Caddy module information.
+func (Provider) CaddyModule() caddy.ModuleInfo {
+	return caddy.ModuleInfo{
+		ID:  "dns.providers.he",
+		New: func() caddy.Module { return &Provider{new(libdnshe.Provider)} },
+	}
+}
+
+// Provision sets up the module. Implements caddy.Provisioner.
+func (p *Provider) Provision(ctx caddy.Context) error {
+	p.Provider.APIKey = caddy.NewReplacer().ReplaceAll(p.Provider.APIKey, "")
+	return nil
+}
+
+// UnmarshalCaddyfile sets up the DNS provider from Caddyfile tokens. Syntax:
+//
+//	he [<api_key>] {
+//	    api_key <api_key>
+//	}
+func (p *Provider) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
+	for d.Next() {
+		if d.NextArg() {
+			p.Provider.APIKey = d.Val()
+		}
+		if d.NextArg() {
+			return d.ArgErr()
+		}
+		for nesting := d.Nesting(); d.NextBlock(nesting); {
+			switch d.Val() {
+			case "api_key":
+				if p.Provider.APIKey != "" {
+					return d.Err("API key already set")
+				}
+				if d.NextArg() {
+					p.Provider.APIKey = d.Val()
+				}
+				if d.NextArg() {
+					return d.ArgErr()
+				}
+			default:
+				return d.Errf("unrecognized subdirective '%s'", d.Val())
+			}
+		}
+	}
+	if p.Provider.APIKey == "" {
+		return d.Err("missing API key")
+	}
+	return nil
+}
+
+// Interface guards
+var (
+	_ caddyfile.Unmarshaler = (*Provider)(nil)
+	_ caddy.Provisioner     = (*Provider)(nil)
+)