//go:generate pkger package main import ( "log" "net" "strings" "github.com/spf13/viper" "gitlab.crans.org/nounous/ghostream/auth" "gitlab.crans.org/nounous/ghostream/internal/monitoring" "gitlab.crans.org/nounous/ghostream/stream/forwarding" "gitlab.crans.org/nounous/ghostream/stream/srt" "gitlab.crans.org/nounous/ghostream/stream/webrtc" "gitlab.crans.org/nounous/ghostream/web" ) func loadConfiguration() { // Load configuration from environnement variables // Replace "." to "_" for nested structs // e.g. GHOSTREAM_LDAP_URI will apply to Config.LDAP.URI viper.SetEnvPrefix("ghostream") replacer := strings.NewReplacer(".", "_") viper.SetEnvKeyReplacer(replacer) viper.AutomaticEnv() // Load configuration file if exists viper.SetConfigName("ghostream.yml") viper.SetConfigType("yaml") viper.AddConfigPath("$HOME/.ghostream") viper.AddConfigPath("/etc/ghostream") viper.AddConfigPath(".") if err := viper.ReadInConfig(); err != nil { if _, ok := err.(viper.ConfigFileNotFoundError); ok { // Config file not found, ignore and use defaults log.Print(err) } else { // Config file was found but another error was produced log.Fatal(err) } } else { // Config loaded log.Printf("Using config file: %s", viper.ConfigFileUsed()) } // Define configuration default values viper.SetDefault("Auth.Backend", "Basic") viper.SetDefault("Auth.Basic.Credentials", map[string]string{ // Demo user with password "demo" "demo": "$2b$15$LRnG3eIHFlYIguTxZOLH7eHwbQC/vqjnLq6nDFiHSUDKIU.f5/1H6", }) viper.SetDefault("Auth.LDAP.URI", "ldap://127.0.0.1:389") viper.SetDefault("Auth.LDAP.UserDn", "cn=users,dc=example,dc=com") viper.SetDefault("Monitoring.ListenAddress", ":2112") viper.SetDefault("Srt.ListenAddress", ":9710") viper.SetDefault("Srt.MaxClients", 64) viper.SetDefault("Web.ListenAddress", ":8080") viper.SetDefault("Web.Name", "Ghostream") viper.SetDefault("Web.Hostname", "localhost") viper.SetDefault("Web.Favicon", "/static/img/favicon.svg") viper.SetDefault("Web.ViewersCounterRefreshPeriod", 20000) viper.SetDefault("WebRTC.MinPortUDP", 10000) viper.SetDefault("WebRTC.MaxPortUDP", 10005) viper.SetDefault("WebRTC.STUNServers", []string{"stun:stun.l.google.com:19302"}) viper.SetDefault("Forwarding", make(map[string][]string)) // Copy STUN configuration to clients viper.Set("Web.STUNServers", viper.Get("WebRTC.STUNServers")) // Copy SRT server port to display it on web page hostport := viper.GetString("Srt.ListenAddress") _, srtPort, err := net.SplitHostPort(hostport) if err != nil { log.Fatalf("Failed to split host and port from %s", hostport) } viper.Set("Web.SRTServerPort", srtPort) } func main() { // Load configuration loadConfiguration() cfg := struct { Auth auth.Options Forwarding forwarding.Options Monitoring monitoring.Options Srt srt.Options Web web.Options WebRTC webrtc.Options }{} if err := viper.Unmarshal(&cfg); err != nil { log.Fatalln("Failed to load settings", err) } // Init authentification authBackend, err := auth.New(&cfg.Auth) if err != nil { log.Fatalln("Failed to load authentification backend:", err) } defer authBackend.Close() // WebRTC session description channels remoteSdpChan := make(chan webrtc.SessionDescription) localSdpChan := make(chan webrtc.SessionDescription) // SRT channel, to propagate forwarding forwardingChannel := make(chan srt.Packet, 65536) // Start stream, web and monitoring server, and stream forwarding go forwarding.Serve(cfg.Forwarding, forwardingChannel) go monitoring.Serve(&cfg.Monitoring) go srt.Serve(&cfg.Srt, authBackend, forwardingChannel) go web.Serve(remoteSdpChan, localSdpChan, &cfg.Web) go webrtc.Serve(remoteSdpChan, localSdpChan, &cfg.WebRTC) // Wait for routines select {} }