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feat(gateway): IPNS record response format (IPIP-351)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| package coreapi | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
|
|
||
| "github.com/ipfs/go-path" | ||
| coreiface "github.com/ipfs/interface-go-ipfs-core" | ||
| peer "github.com/libp2p/go-libp2p/core/peer" | ||
| ) | ||
|
|
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| type RoutingAPI CoreAPI | ||
|
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| func (r *RoutingAPI) Get(ctx context.Context, key string) ([]byte, error) { | ||
| if !r.nd.IsOnline { | ||
| return nil, coreiface.ErrOffline | ||
| } | ||
|
|
||
| dhtKey, err := normalizeKey(key) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
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| return r.routing.GetValue(ctx, dhtKey) | ||
| } | ||
|
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| func (r *RoutingAPI) Put(ctx context.Context, key string, value []byte) error { | ||
| if !r.nd.IsOnline { | ||
| return coreiface.ErrOffline | ||
| } | ||
|
|
||
| dhtKey, err := normalizeKey(key) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| return r.routing.PutValue(ctx, dhtKey, value) | ||
| } | ||
|
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| func normalizeKey(s string) (string, error) { | ||
| parts := path.SplitList(s) | ||
| if len(parts) != 3 || | ||
| parts[0] != "" || | ||
| !(parts[1] == "ipns" || parts[1] == "pk") { | ||
| return "", errors.New("invalid key") | ||
| } | ||
|
|
||
| k, err := peer.Decode(parts[2]) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| return path.Join(append(parts[:2], string(k))), nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| package corehttp | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| "net/http" | ||
| "strings" | ||
| "time" | ||
|
|
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| path "github.com/ipfs/go-path" | ||
| ipath "github.com/ipfs/interface-go-ipfs-core/path" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
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| func (i *gatewayHandler) serveIpnsRecord(ctx context.Context, w http.ResponseWriter, r *http.Request, resolvedPath ipath.Resolved, contentPath ipath.Path, begin time.Time, logger *zap.SugaredLogger) { | ||
| if contentPath.Namespace() != "ipns" { | ||
| err := fmt.Errorf("%s is not an IPNS link", contentPath.String()) | ||
| webError(w, err.Error(), err, http.StatusBadRequest) | ||
| return | ||
| } | ||
|
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| key := contentPath.String() | ||
| key = strings.TrimSuffix(key, "/") | ||
| if strings.Count(key, "/") > 2 { | ||
| err := errors.New("cannot find ipns key for subpath") | ||
| webError(w, err.Error(), err, http.StatusBadRequest) | ||
| return | ||
| } | ||
|
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||
| record, err := i.api.Routing().Get(ctx, key) | ||
| if err != nil { | ||
| webError(w, err.Error(), err, http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
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| // Set cache control headers. See the linked issue for improvements on | ||
| // IPNS caching based on keys' TTL. | ||
| // https://github.com/ipfs/kubo/issues/1818#issuecomment-1015849462 | ||
| _ = addCacheControlHeaders(w, r, contentPath, resolvedPath.Cid()) | ||
|
|
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| // Set Content-Disposition | ||
| var name string | ||
| if urlFilename := r.URL.Query().Get("filename"); urlFilename != "" { | ||
| name = urlFilename | ||
| } else { | ||
| name = path.SplitList(key)[2] + ".ipns-record" | ||
| } | ||
| setContentDispositionHeader(w, name, "attachment") | ||
|
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| w.Header().Set("Content-Type", "application/vnd.ipfs.ipns-record") | ||
| w.Header().Set("X-Content-Type-Options", "nosniff") | ||
|
|
||
| _, _ = w.Write(record) | ||
| } |
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