106 lines
3.0 KiB
Go
106 lines
3.0 KiB
Go
package public
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import (
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"context"
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"errors"
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"io"
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"net/http"
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"strconv"
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"github.com/lestrrat-go/jwx/v2/jwt"
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"github.com/navidrome/navidrome/core/auth"
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"github.com/navidrome/navidrome/log"
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"github.com/navidrome/navidrome/utils/req"
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)
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func (pub *Router) handleStream(w http.ResponseWriter, r *http.Request) {
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ctx := r.Context()
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p := req.Params(r)
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tokenId, _ := p.String(":id")
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info, err := decodeStreamInfo(tokenId)
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if err != nil {
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log.Error(ctx, "Error parsing shared stream info", err)
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http.Error(w, "invalid request", http.StatusBadRequest)
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return
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}
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stream, err := pub.streamer.NewStream(ctx, info.id, info.format, info.bitrate, 0)
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if err != nil {
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log.Error(ctx, "Error starting shared stream", err)
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http.Error(w, "invalid request", http.StatusInternalServerError)
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}
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// Make sure the stream will be closed at the end, to avoid leakage
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defer func() {
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if err := stream.Close(); err != nil && log.CurrentLevel() >= log.LevelDebug {
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log.Error("Error closing shared stream", "id", info.id, "file", stream.Name(), err)
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}
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}()
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w.Header().Set("X-Content-Type-Options", "nosniff")
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w.Header().Set("X-Content-Duration", strconv.FormatFloat(float64(stream.Duration()), 'G', -1, 32))
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if stream.Seekable() {
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http.ServeContent(w, r, stream.Name(), stream.ModTime(), stream)
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} else {
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// If the stream doesn't provide a size (i.e. is not seekable), we can't support ranges/content-length
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w.Header().Set("Accept-Ranges", "none")
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w.Header().Set("Content-Type", stream.ContentType())
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estimateContentLength := p.BoolOr("estimateContentLength", false)
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// if Client requests the estimated content-length, send it
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if estimateContentLength {
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length := strconv.Itoa(stream.EstimatedContentLength())
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log.Trace(ctx, "Estimated content-length", "contentLength", length)
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w.Header().Set("Content-Length", length)
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}
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if r.Method == http.MethodHead {
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go func() { _, _ = io.Copy(io.Discard, stream) }()
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} else {
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c, err := io.Copy(w, stream)
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if log.CurrentLevel() >= log.LevelDebug {
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if err != nil {
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log.Error(ctx, "Error sending shared transcoded file", "id", info.id, err)
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} else {
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log.Trace(ctx, "Success sending shared transcode file", "id", info.id, "size", c)
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}
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}
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}
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}
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}
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type shareTrackInfo struct {
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id string
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format string
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bitrate int
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}
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func decodeStreamInfo(tokenString string) (shareTrackInfo, error) {
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token, err := auth.TokenAuth.Decode(tokenString)
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if err != nil {
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return shareTrackInfo{}, err
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}
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if token == nil {
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return shareTrackInfo{}, errors.New("unauthorized")
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}
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err = jwt.Validate(token, jwt.WithRequiredClaim("id"))
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if err != nil {
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return shareTrackInfo{}, err
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}
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claims, err := token.AsMap(context.Background())
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if err != nil {
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return shareTrackInfo{}, err
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}
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id, ok := claims["id"].(string)
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if !ok {
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return shareTrackInfo{}, errors.New("invalid id type")
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}
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resp := shareTrackInfo{}
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resp.id = id
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resp.format, _ = claims["f"].(string)
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resp.bitrate, _ = claims["b"].(int)
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return resp, nil
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}
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