// Package srt serves a SRT server package srt // #include import "C" import ( "log" "net" "strconv" "strings" "github.com/haivision/srtgo" "gitlab.crans.org/nounous/ghostream/auth" "gitlab.crans.org/nounous/ghostream/messaging" ) // Options holds web package configuration type Options struct { Enabled bool ListenAddress string MaxClients int } // Split host and port from listen address func splitHostPort(hostport string) (string, uint16, error) { host, portS, err := net.SplitHostPort(hostport) if err != nil { return "", 0, err } if host == "" { host = "0.0.0.0" } port64, err := strconv.ParseUint(portS, 10, 16) if err != nil { return "", 0, err } return host, uint16(port64), nil } // Serve SRT server func Serve(streams *messaging.Streams, authBackend auth.Backend, cfg *Options) { if !cfg.Enabled { // SRT is not enabled, ignore return } // Start SRT in listening mode log.Printf("SRT server listening on %s", cfg.ListenAddress) host, port, err := splitHostPort(cfg.ListenAddress) if err != nil { log.Fatalf("Failed to split host and port from %s", cfg.ListenAddress) } options := make(map[string]string) options["blocking"] = "0" options["transtype"] = "live" sck := srtgo.NewSrtSocket(host, port, options) if err := sck.Listen(cfg.MaxClients); err != nil { log.Fatal("Unable to listen for SRT clients:", err) } for { // Wait for new connection s, err := sck.Accept() if err != nil { // Something wrong happened log.Println(err) continue } // FIXME: Flush socket // Without this, the SRT buffer might get full before reading it // streamid can be "name:password" for streamer or "name" for viewer streamID, err := s.GetSockOptString(C.SRTO_STREAMID) if err != nil { log.Print("Failed to get socket streamid") continue } split := strings.Split(streamID, ":") if len(split) > 1 { // password was provided so it is a streamer name, password := split[0], split[1] if authBackend != nil { // check password if ok, err := authBackend.Login(name, password); !ok || err != nil { log.Printf("Failed to authenticate for stream %s", name) s.Close() continue } } go handleStreamer(s, streams, name) } else { // password was not provided so it is a viewer name := split[0] // Send stream go handleViewer(s, streams, name) } } }