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Merge pull request #9 from SiaFoundation/nate/calculate-cid
Calculate CID
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| package http | ||
|
|
||
| import ( | ||
| "bufio" | ||
| "fmt" | ||
| "net/http" | ||
|
|
||
| chunker "github.com/ipfs/boxo/chunker" | ||
| ihelpers "github.com/ipfs/boxo/ipld/unixfs/importer/helpers" | ||
| "github.com/ipfs/go-cid" | ||
| "github.com/multiformats/go-multicodec" | ||
| "github.com/multiformats/go-multihash" | ||
| "go.sia.tech/fsd/sia" | ||
| "go.sia.tech/jape" | ||
| ) | ||
|
|
||
| func (as *apiServer) handleUnixFSCalculate(jc jape.Context) { | ||
| ctx := jc.Request.Context() | ||
|
|
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| body := jc.Request.Body | ||
| defer body.Close() | ||
|
|
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| opts, ok := parseUnixFSOptions(jc) | ||
| if !ok { | ||
| return // error already handled | ||
| } | ||
|
|
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| br := bufio.NewReaderSize(body, 256<<20) // 256 MiB | ||
| blocks, err := as.sia.CalculateBlocks(ctx, br, opts) | ||
| if err != nil { | ||
| jc.Error(err, http.StatusInternalServerError) | ||
| return | ||
| } | ||
| jc.Encode(blocks) | ||
| } | ||
|
|
||
| func (as *apiServer) handleUnixFSUpload(jc jape.Context) { | ||
| body := jc.Request.Body | ||
| defer body.Close() | ||
|
|
||
| opts, ok := parseUnixFSOptions(jc) | ||
| if !ok { | ||
| return // error already handled | ||
| } | ||
|
|
||
| br := bufio.NewReaderSize(body, 256<<20) // 256 MiB | ||
| c, err := as.sia.UploadFile(jc.Request.Context(), br, opts) | ||
| if err != nil { | ||
| jc.Error(err, http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
||
| // return the calculated cid | ||
| jc.Encode(c.String()) | ||
| } | ||
|
|
||
| func parseUnixFSOptions(jc jape.Context) (sia.UnixFSOptions, bool) { | ||
| cidVersion := 1 | ||
| if err := jc.DecodeForm("version", &cidVersion); err != nil { | ||
| return sia.UnixFSOptions{}, false | ||
| } | ||
|
|
||
| opts := sia.UnixFSOptions{ | ||
| MaxLinks: ihelpers.DefaultLinksPerBlock, | ||
| BlockSize: chunker.DefaultBlockSize, | ||
| } | ||
| switch cidVersion { | ||
| case 0: | ||
| opts.CIDBuilder = cid.V0Builder{} | ||
| case 1: | ||
| opts.CIDBuilder = cid.V1Builder{Codec: uint64(multicodec.DagPb), MhType: multihash.SHA2_256} | ||
| default: | ||
| jc.Error(fmt.Errorf("unsupported CID version: %d", cidVersion), http.StatusBadRequest) | ||
| return sia.UnixFSOptions{}, false | ||
| } | ||
|
|
||
| if err := jc.DecodeForm("rawLeaves", &opts.RawLeaves); err != nil { | ||
| return sia.UnixFSOptions{}, false | ||
| } else if err := jc.DecodeForm("maxLinks", &opts.MaxLinks); err != nil { | ||
| return sia.UnixFSOptions{}, false | ||
| } else if err := jc.DecodeForm("blockSize", &opts.BlockSize); err != nil { | ||
| return sia.UnixFSOptions{}, false | ||
| } | ||
| return opts, true | ||
| } |
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