package main import ( "flag" "fmt" "log" "os" "os/signal" "path/filepath" "runtime" "runtime/pprof" "syscall" "time" "github.com/jech/galene/diskwriter" "github.com/jech/galene/group" "github.com/jech/galene/ice" "github.com/jech/galene/limit" "github.com/jech/galene/turnserver" "github.com/jech/galene/webserver" ) func main() { var cpuprofile, memprofile, mutexprofile, httpAddr string var udpRange string flag.StringVar(&httpAddr, "http", ":8443", "web server `address`") flag.StringVar(&webserver.StaticRoot, "static", "./static/", "web server root `directory`") flag.BoolVar(&webserver.Insecure, "insecure", false, "act as an HTTP server rather than HTTPS") flag.StringVar(&group.DataDirectory, "data", "./data/", "data `directory`") flag.StringVar(&group.Directory, "groups", "./groups/", "group description `directory`") flag.StringVar(&diskwriter.Directory, "recordings", "./recordings/", "recordings `directory`") flag.StringVar(&cpuprofile, "cpuprofile", "", "store CPU profile in `file`") flag.StringVar(&memprofile, "memprofile", "", "store memory profile in `file`") flag.StringVar(&mutexprofile, "mutexprofile", "", "store mutex profile in `file`") flag.StringVar(&udpRange, "udp-range", "", "UDP port `range`") flag.BoolVar(&group.UseMDNS, "mdns", false, "gather mDNS addresses") flag.BoolVar(&ice.ICERelayOnly, "relay-only", false, "require use of TURN relays for all media traffic") flag.StringVar(&turnserver.Address, "turn", "auto", "built-in TURN server `address` (\"\" to disable)") flag.Parse() if udpRange != "" { var min, max uint16 n, err := fmt.Sscanf(udpRange, "%v-%v", &min, &max) if err != nil { log.Printf("UDP range: %v", err) os.Exit(1) } if n != 2 || min <= 0 || max <= 0 || min > max { log.Printf("UDP range: bad range") os.Exit(1) } group.UDPMin = min group.UDPMax = max } if cpuprofile != "" { f, err := os.Create(cpuprofile) if err != nil { log.Printf("Create(cpuprofile): %v", err) return } pprof.StartCPUProfile(f) defer func() { pprof.StopCPUProfile() f.Close() }() } if memprofile != "" { defer func() { f, err := os.Create(memprofile) if err != nil { log.Printf("Create(memprofile): %v", err) return } pprof.WriteHeapProfile(f) f.Close() }() } if mutexprofile != "" { runtime.SetMutexProfileFraction(1) defer func() { f, err := os.Create(mutexprofile) if err != nil { log.Printf("Create(mutexprofile): %v", err) return } pprof.Lookup("mutex").WriteTo(f, 0) f.Close() }() } n, err := limit.Nofile(0xFFFF) if err != nil { log.Printf("Couldn't set file descriptor limit: %v", err) } else if n < 0xFFFF { log.Printf("File descriptor limit is %v, please increase it!", n) } ice.ICEFilename = filepath.Join(group.DataDirectory, "ice-servers.json") // make sure the list of public groups is updated early go group.Update() // causes the built-in server to start if required ice.Update() defer turnserver.Stop() serverDone := make(chan struct{}) go func() { err := webserver.Serve(httpAddr, group.DataDirectory) if err != nil { log.Printf("Server: %v", err) } close(serverDone) }() terminate := make(chan os.Signal, 1) signal.Notify(terminate, syscall.SIGINT, syscall.SIGTERM) go relayTest() ticker := time.NewTicker(15 * time.Minute) defer ticker.Stop() slowTicker := time.NewTicker(12 * time.Hour) defer slowTicker.Stop() for { select { case <-ticker.C: go group.Update() case <-slowTicker.C: go relayTest() case <-terminate: webserver.Shutdown() return case <-serverDone: os.Exit(1) } } } func relayTest() { now := time.Now() d, err := ice.RelayTest(20 * time.Second) if err != nil { log.Printf("Relay test failed: %v", err) log.Printf("Perhaps you didn't configure a TURN server?") return } log.Printf("Relay test successful in %v, RTT = %v", time.Since(now), d) }