owncast/core/transcoder/fileWriterReceiverService.go
2023-05-28 12:38:51 -07:00

94 lines
2.8 KiB
Go

package transcoder
import (
"io"
"net"
"net/http"
"os"
"path/filepath"
"strings"
"github.com/owncast/owncast/config"
"github.com/owncast/owncast/utils"
log "github.com/sirupsen/logrus"
)
// FileWriterReceiverServiceCallback are to be fired when transcoder responses are written to disk.
type FileWriterReceiverServiceCallback interface {
SegmentWritten(localFilePath string)
VariantPlaylistWritten(localFilePath string)
MasterPlaylistWritten(localFilePath string)
}
// FileWriterReceiverService accepts transcoder responses via HTTP and fires the callbacks.
// It is intended to be the middleman between the transcoder and the storage provider and allows
// the transcoder process to be completely isolated and even run remotely in the future, as long
// as it can send HTTP requests to this service with the results.
type FileWriterReceiverService struct {
callbacks FileWriterReceiverServiceCallback
}
// SetupFileWriterReceiverService will start listening for transcoder responses.
func (s *FileWriterReceiverService) SetupFileWriterReceiverService(callbacks FileWriterReceiverServiceCallback) {
s.callbacks = callbacks
httpServer := http.NewServeMux()
httpServer.HandleFunc("/", s.uploadHandler)
localListenerAddress := "127.0.0.1:0"
listener, err := net.Listen("tcp", localListenerAddress)
if err != nil {
log.Fatalln("Unable to start internal video writing service", err)
}
listenerPort := strings.Split(listener.Addr().String(), ":")[1]
config.InternalHLSListenerPort = listenerPort
log.Traceln("Transcoder response service listening on: " + listenerPort)
go func() {
//nolint: gosec
if err := http.Serve(listener, httpServer); err != nil {
log.Fatalln("Unable to start internal video writing service", err)
}
}()
}
func (s *FileWriterReceiverService) uploadHandler(w http.ResponseWriter, r *http.Request) {
if r.Method != "PUT" {
http.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
return
}
path := r.URL.Path
writePath := filepath.Join(config.HLSStoragePath, path)
f, err := os.Create(writePath) //nolint: gosec
if err != nil {
returnError(err, w)
return
}
defer f.Close()
if _, err := io.Copy(f, r.Body); err != nil {
returnError(err, w)
return
}
s.fileWritten(writePath)
w.WriteHeader(http.StatusOK)
}
func (s *FileWriterReceiverService) fileWritten(path string) {
if utils.GetRelativePathFromAbsolutePath(path) == "hls/stream.m3u8" {
s.callbacks.MasterPlaylistWritten(path)
} else if strings.HasSuffix(path, ".ts") {
s.callbacks.SegmentWritten(path)
} else if strings.HasSuffix(path, ".m3u8") {
s.callbacks.VariantPlaylistWritten(path)
}
}
func returnError(err error, w http.ResponseWriter) {
log.Debugln(err)
http.Error(w, http.StatusText(http.StatusInternalServerError)+": "+err.Error(), http.StatusInternalServerError)
}