示例#1
0
func TestManyPeers(t *testing.T) {
	log.Println("Cleaning...")
	err := removeAll("s1", "s2", "h1/index", "h2/index")
	if err != nil {
		t.Fatal(err)
	}

	log.Println("Generating files...")
	err = generateFiles("s1", 200, 20, "../LICENSE")
	if err != nil {
		t.Fatal(err)
	}

	receiver := syncthingProcess{ // id2
		log:    "2.out",
		argv:   []string{"-home", "h2"},
		port:   8082,
		apiKey: apiKey,
	}
	err = receiver.start()
	if err != nil {
		t.Fatal(err)
	}
	defer receiver.stop()

	resp, err := receiver.get("/rest/config")
	if err != nil {
		t.Fatal(err)
	}
	if resp.StatusCode != 200 {
		t.Fatalf("Code %d != 200", resp.StatusCode)
	}

	var cfg config.Configuration
	json.NewDecoder(resp.Body).Decode(&cfg)
	resp.Body.Close()

	for len(cfg.Devices) < 100 {
		bs := make([]byte, 16)
		ReadRand(bs)
		id := protocol.NewDeviceID(bs)
		cfg.Devices = append(cfg.Devices, config.DeviceConfiguration{DeviceID: id})
		cfg.Folders[0].Devices = append(cfg.Folders[0].Devices, config.FolderDeviceConfiguration{DeviceID: id})
	}

	osutil.Rename("h2/config.xml", "h2/config.xml.orig")
	defer osutil.Rename("h2/config.xml.orig", "h2/config.xml")

	var buf bytes.Buffer
	json.NewEncoder(&buf).Encode(cfg)
	resp, err = receiver.post("/rest/config", &buf)
	if err != nil {
		t.Fatal(err)
	}
	if resp.StatusCode != 200 {
		t.Fatalf("Code %d != 200", resp.StatusCode)
	}
	resp.Body.Close()

	log.Println("Starting up...")
	sender := syncthingProcess{ // id1
		log:    "1.out",
		argv:   []string{"-home", "h1"},
		port:   8081,
		apiKey: apiKey,
	}
	err = sender.start()
	if err != nil {
		t.Fatal(err)
	}
	defer sender.stop()

	for {
		comp, err := sender.peerCompletion()
		if err != nil {
			if strings.Contains(err.Error(), "use of closed network connection") {
				time.Sleep(250 * time.Millisecond)
				continue
			}
			t.Fatal(err)
		}
		if comp[id2] == 100 {
			return
		}
		time.Sleep(2 * time.Second)
	}

	log.Println("Comparing directories...")
	err = compareDirectories("s1", "s2")
	if err != nil {
		t.Fatal(err)
	}
}
示例#2
0
func listenConnect(myID protocol.DeviceID, m *model.Model, tlsCfg *tls.Config) {
	var conns = make(chan *tls.Conn)

	// Listen
	for _, addr := range cfg.Options().ListenAddress {
		go listenTLS(conns, addr, tlsCfg)
	}

	// Connect
	go dialTLS(m, conns, tlsCfg)

next:
	for conn := range conns {
		certs := conn.ConnectionState().PeerCertificates
		if cl := len(certs); cl != 1 {
			l.Infof("Got peer certificate list of length %d != 1 from %s; protocol error", cl, conn.RemoteAddr())
			conn.Close()
			continue
		}
		remoteCert := certs[0]
		remoteID := protocol.NewDeviceID(remoteCert.Raw)

		if remoteID == myID {
			l.Infof("Connected to myself (%s) - should not happen", remoteID)
			conn.Close()
			continue
		}

		if m.ConnectedTo(remoteID) {
			l.Infof("Connected to already connected device (%s)", remoteID)
			conn.Close()
			continue
		}

		for deviceID, deviceCfg := range cfg.Devices() {
			if deviceID == remoteID {
				// Verify the name on the certificate. By default we set it to
				// "syncthing" when generating, but the user may have replaced
				// the certificate and used another name.
				certName := deviceCfg.CertName
				if certName == "" {
					certName = "syncthing"
				}
				err := remoteCert.VerifyHostname(certName)
				if err != nil {
					// Incorrect certificate name is something the user most
					// likely wants to know about, since it's an advanced
					// config. Warn instead of Info.
					l.Warnf("Bad certificate from %s (%v): %v", remoteID, conn.RemoteAddr(), err)
					conn.Close()
					continue next
				}

				// If rate limiting is set, we wrap the connection in a
				// limiter.
				var wr io.Writer = conn
				if writeRateLimit != nil {
					wr = &limitedWriter{conn, writeRateLimit}
				}

				var rd io.Reader = conn
				if readRateLimit != nil {
					rd = &limitedReader{conn, readRateLimit}
				}

				name := fmt.Sprintf("%s-%s", conn.LocalAddr(), conn.RemoteAddr())
				protoConn := protocol.NewConnection(remoteID, rd, wr, m, name, deviceCfg.Compression)

				l.Infof("Established secure connection to %s at %s", remoteID, name)
				if debugNet {
					l.Debugf("cipher suite %04X", conn.ConnectionState().CipherSuite)
				}
				events.Default.Log(events.DeviceConnected, map[string]string{
					"id":   remoteID.String(),
					"addr": conn.RemoteAddr().String(),
				})

				m.AddConnection(conn, protoConn)
				continue next
			}
		}

		events.Default.Log(events.DeviceRejected, map[string]string{
			"device":  remoteID.String(),
			"address": conn.RemoteAddr().String(),
		})
		l.Infof("Connection from %s with unknown device ID %s; ignoring", conn.RemoteAddr(), remoteID)
		conn.Close()
	}
}
示例#3
0
func syncthingMain() {
	var err error

	if len(os.Getenv("GOGC")) == 0 {
		debug.SetGCPercent(25)
	}

	if len(os.Getenv("GOMAXPROCS")) == 0 {
		runtime.GOMAXPROCS(runtime.NumCPU())
	}

	events.Default.Log(events.Starting, map[string]string{"home": confDir})

	// Ensure that that we have a certificate and key.
	cert, err = loadCert(confDir, "")
	if err != nil {
		newCertificate(confDir, "")
		cert, err = loadCert(confDir, "")
		if err != nil {
			l.Fatalln("load cert:", err)
		}
	}

	myID = protocol.NewDeviceID(cert.Certificate[0])
	l.SetPrefix(fmt.Sprintf("[%s] ", myID.String()[:5]))

	l.Infoln(LongVersion)
	l.Infoln("My ID:", myID)

	// Prepare to be able to save configuration

	cfgFile := filepath.Join(confDir, "config.xml")

	var myName string

	// Load the configuration file, if it exists.
	// If it does not, create a template.

	if info, err := os.Stat(cfgFile); err == nil {
		if !info.Mode().IsRegular() {
			l.Fatalln("Config file is not a file?")
		}
		cfg, err = config.Load(cfgFile, myID)
		if err == nil {
			myCfg := cfg.Devices()[myID]
			if myCfg.Name == "" {
				myName, _ = os.Hostname()
			} else {
				myName = myCfg.Name
			}
		} else {
			l.Fatalln("Configuration:", err)
		}
	} else {
		l.Infoln("No config file; starting with empty defaults")
		myName, _ = os.Hostname()
		newCfg := defaultConfig(myName)
		cfg = config.Wrap(cfgFile, newCfg)
		cfg.Save()
		l.Infof("Edit %s to taste or use the GUI\n", cfgFile)
	}

	if cfg.Raw().OriginalVersion != config.CurrentVersion {
		l.Infoln("Archiving a copy of old config file format")
		// Archive a copy
		osutil.Rename(cfgFile, cfgFile+fmt.Sprintf(".v%d", cfg.Raw().OriginalVersion))
		// Save the new version
		cfg.Save()
	}

	if len(profiler) > 0 {
		go func() {
			l.Debugln("Starting profiler on", profiler)
			runtime.SetBlockProfileRate(1)
			err := http.ListenAndServe(profiler, nil)
			if err != nil {
				l.Fatalln(err)
			}
		}()
	}

	// The TLS configuration is used for both the listening socket and outgoing
	// connections.

	tlsCfg := &tls.Config{
		Certificates:           []tls.Certificate{cert},
		NextProtos:             []string{"bep/1.0"},
		ClientAuth:             tls.RequestClientCert,
		SessionTicketsDisabled: true,
		InsecureSkipVerify:     true,
		MinVersion:             tls.VersionTLS12,
		CipherSuites: []uint16{
			tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
			tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
			tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
			tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
			tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
			tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
		},
	}

	// If the read or write rate should be limited, set up a rate limiter for it.
	// This will be used on connections created in the connect and listen routines.

	opts := cfg.Options()

	if opts.MaxSendKbps > 0 {
		writeRateLimit = ratelimit.NewBucketWithRate(float64(1000*opts.MaxSendKbps), int64(5*1000*opts.MaxSendKbps))
	}
	if opts.MaxRecvKbps > 0 {
		readRateLimit = ratelimit.NewBucketWithRate(float64(1000*opts.MaxRecvKbps), int64(5*1000*opts.MaxRecvKbps))
	}

	db, err := leveldb.OpenFile(filepath.Join(confDir, "index"), &opt.Options{CachedOpenFiles: 100})
	if err != nil {
		l.Fatalln("Cannot open database:", err, "- Is another copy of Syncthing already running?")
	}

	// Remove database entries for folders that no longer exist in the config
	folders := cfg.Folders()
	for _, folder := range files.ListFolders(db) {
		if _, ok := folders[folder]; !ok {
			l.Infof("Cleaning data for dropped folder %q", folder)
			files.DropFolder(db, folder)
		}
	}

	m := model.NewModel(cfg, myName, "syncthing", Version, db)

	sanityCheckFolders(cfg, m)

	// GUI

	setupGUI(cfg, m)

	// Clear out old indexes for other devices. Otherwise we'll start up and
	// start needing a bunch of files which are nowhere to be found. This
	// needs to be changed when we correctly do persistent indexes.
	for _, folderCfg := range cfg.Folders() {
		if folderCfg.Invalid != "" {
			continue
		}
		for _, device := range folderCfg.DeviceIDs() {
			if device == myID {
				continue
			}
			m.Index(device, folderCfg.ID, nil)
		}
	}

	// The default port we announce, possibly modified by setupUPnP next.

	addr, err := net.ResolveTCPAddr("tcp", opts.ListenAddress[0])
	if err != nil {
		l.Fatalln("Bad listen address:", err)
	}
	externalPort = addr.Port

	// UPnP
	igd = nil

	if opts.UPnPEnabled {
		setupUPnP()
	}

	// Routine to connect out to configured devices
	discoverer = discovery(externalPort)
	go listenConnect(myID, m, tlsCfg)

	for _, folder := range cfg.Folders() {
		if folder.Invalid != "" {
			continue
		}

		// Routine to pull blocks from other devices to synchronize the local
		// folder. Does not run when we are in read only (publish only) mode.
		if folder.ReadOnly {
			l.Okf("Ready to synchronize %s (read only; no external updates accepted)", folder.ID)
			m.StartFolderRO(folder.ID)
		} else {
			l.Okf("Ready to synchronize %s (read-write)", folder.ID)
			m.StartFolderRW(folder.ID)
		}
	}

	if cpuProfile {
		f, err := os.Create(fmt.Sprintf("cpu-%d.pprof", os.Getpid()))
		if err != nil {
			log.Fatal(err)
		}
		pprof.StartCPUProfile(f)
		defer pprof.StopCPUProfile()
	}

	for _, device := range cfg.Devices() {
		if len(device.Name) > 0 {
			l.Infof("Device %s is %q at %v", device.DeviceID, device.Name, device.Addresses)
		}
	}

	if opts.URAccepted > 0 && opts.URAccepted < usageReportVersion {
		l.Infoln("Anonymous usage report has changed; revoking acceptance")
		opts.URAccepted = 0
		opts.URUniqueID = ""
		cfg.SetOptions(opts)
	}
	if opts.URAccepted >= usageReportVersion {
		if opts.URUniqueID == "" {
			// Previously the ID was generated from the node ID. We now need
			// to generate a new one.
			opts.URUniqueID = randomString(6)
		}
		go usageReportingLoop(m)
		go func() {
			time.Sleep(10 * time.Minute)
			err := sendUsageReport(m)
			if err != nil {
				l.Infoln("Usage report:", err)
			}
		}()
	}

	if opts.RestartOnWakeup {
		go standbyMonitor()
	}

	if opts.AutoUpgradeIntervalH > 0 {
		if noUpgrade {
			l.Infof("No automatic upgrades; STNOUPGRADE environment variable defined.")
		} else if IsRelease {
			go autoUpgrade()
		} else {
			l.Infof("No automatic upgrades; %s is not a relase version.", Version)
		}
	}

	events.Default.Log(events.StartupComplete, nil)
	go generateEvents()

	code := <-stop

	l.Okln("Exiting")
	os.Exit(code)
}
示例#4
0
func main() {
	defConfDir, err := getDefaultConfDir()
	if err != nil {
		l.Fatalln("home:", err)
	}

	if runtime.GOOS == "windows" {
		// On Windows, we use a log file by default. Setting the -logfile flag
		// to the empty string disables this behavior.

		logFile = filepath.Join(defConfDir, "syncthing.log")
		flag.StringVar(&logFile, "logfile", logFile, "Log file name (blank for stdout)")
	}

	flag.StringVar(&generateDir, "generate", "", "Generate key and config in specified dir, then exit")
	flag.StringVar(&guiAddress, "gui-address", guiAddress, "Override GUI address")
	flag.StringVar(&guiAuthentication, "gui-authentication", guiAuthentication, "Override GUI authentication; username:password")
	flag.StringVar(&guiAPIKey, "gui-apikey", guiAPIKey, "Override GUI API key")
	flag.StringVar(&confDir, "home", "", "Set configuration directory")
	flag.IntVar(&logFlags, "logflags", logFlags, "Select information in log line prefix")
	flag.BoolVar(&noBrowser, "no-browser", false, "Do not start browser")
	flag.BoolVar(&noRestart, "no-restart", noRestart, "Do not restart; just exit")
	flag.BoolVar(&reset, "reset", false, "Prepare to resync from cluster")
	flag.BoolVar(&doUpgrade, "upgrade", false, "Perform upgrade")
	flag.BoolVar(&doUpgradeCheck, "upgrade-check", false, "Check for available upgrade")
	flag.BoolVar(&showVersion, "version", false, "Show version")

	flag.Usage = usageFor(flag.CommandLine, usage, fmt.Sprintf(extraUsage, defConfDir))
	flag.Parse()

	if confDir == "" {
		// Not set as default above because the string can be really long.
		confDir = defConfDir
	}

	if confDir != defConfDir && filepath.Dir(logFile) == defConfDir {
		// The user changed the config dir with -home, but not the log file
		// location. In this case we assume they meant for the logfile to
		// still live in it's default location *relative to the config dir*.
		logFile = filepath.Join(confDir, "syncthing.log")
	}

	if showVersion {
		fmt.Println(LongVersion)
		return
	}

	l.SetFlags(logFlags)

	if generateDir != "" {
		dir, err := osutil.ExpandTilde(generateDir)
		if err != nil {
			l.Fatalln("generate:", err)
		}

		info, err := os.Stat(dir)
		if err != nil {
			l.Fatalln("generate:", err)
		}
		if !info.IsDir() {
			l.Fatalln(dir, "is not a directory")
		}

		cert, err := loadCert(dir, "")
		if err == nil {
			l.Warnln("Key exists; will not overwrite.")
			l.Infoln("Device ID:", protocol.NewDeviceID(cert.Certificate[0]))
		} else {
			newCertificate(dir, "")
			cert, err = loadCert(dir, "")
			myID = protocol.NewDeviceID(cert.Certificate[0])
			if err != nil {
				l.Fatalln("load cert:", err)
			}
			if err == nil {
				l.Infoln("Device ID:", protocol.NewDeviceID(cert.Certificate[0]))
			}
		}

		cfgFile := filepath.Join(dir, "config.xml")
		if _, err := os.Stat(cfgFile); err == nil {
			l.Warnln("Config exists; will not overwrite.")
			return
		}
		var myName, _ = os.Hostname()
		var newCfg = defaultConfig(myName)
		var cfg = config.Wrap(cfgFile, newCfg)
		err = cfg.Save()
		if err != nil {
			l.Warnln("Failed to save config", err)
		}

		return
	}

	confDir, err := osutil.ExpandTilde(confDir)
	if err != nil {
		l.Fatalln("home:", err)
	}

	if info, err := os.Stat(confDir); err == nil && !info.IsDir() {
		l.Fatalln("Config directory", confDir, "is not a directory")
	}

	// Ensure that our home directory exists.
	ensureDir(confDir, 0700)

	if doUpgrade || doUpgradeCheck {
		rel, err := upgrade.LatestRelease(IsBeta)
		if err != nil {
			l.Fatalln("Upgrade:", err) // exits 1
		}

		if upgrade.CompareVersions(rel.Tag, Version) <= 0 {
			l.Infof("No upgrade available (current %q >= latest %q).", Version, rel.Tag)
			os.Exit(exitNoUpgradeAvailable)
		}

		l.Infof("Upgrade available (current %q < latest %q)", Version, rel.Tag)

		if doUpgrade {
			// Use leveldb database locks to protect against concurrent upgrades
			_, err = leveldb.OpenFile(filepath.Join(confDir, "index"), &opt.Options{CachedOpenFiles: 100})
			if err != nil {
				l.Fatalln("Cannot upgrade, database seems to be locked. Is another copy of Syncthing already running?")
			}

			err = upgrade.UpgradeTo(rel, GoArchExtra)
			if err != nil {
				l.Fatalln("Upgrade:", err) // exits 1
			}
			l.Okf("Upgraded to %q", rel.Tag)
			return
		} else {
			return
		}
	}

	if reset {
		resetFolders()
		return
	}

	if noRestart {
		syncthingMain()
	} else {
		monitorMain()
	}
}
示例#5
0
func syncthingMain() {
	var err error

	if len(os.Getenv("GOGC")) == 0 {
		debug.SetGCPercent(25)
	}

	if len(os.Getenv("GOMAXPROCS")) == 0 {
		runtime.GOMAXPROCS(runtime.NumCPU())
	}

	events.Default.Log(events.Starting, map[string]string{"home": confDir})

	// Ensure that that we have a certificate and key.
	cert, err = loadCert(confDir, "")
	if err != nil {
		newCertificate(confDir, "")
		cert, err = loadCert(confDir, "")
		if err != nil {
			l.Fatalln("load cert:", err)
		}
	}

	myID = protocol.NewDeviceID(cert.Certificate[0])
	l.SetPrefix(fmt.Sprintf("[%s] ", myID.String()[:5]))

	l.Infoln(LongVersion)
	l.Infoln("My ID:", myID)

	// Prepare to be able to save configuration

	cfgFile := filepath.Join(confDir, "config.xml")

	var myName string

	// Load the configuration file, if it exists.
	// If it does not, create a template.

	cfg, err = config.Load(cfgFile, myID)
	if err == nil {
		myCfg := cfg.Devices()[myID]
		if myCfg.Name == "" {
			myName, _ = os.Hostname()
		} else {
			myName = myCfg.Name
		}
	} else {
		l.Infoln("No config file; starting with empty defaults")
		myName, _ = os.Hostname()
		defaultFolder, err := osutil.ExpandTilde("~/Sync")
		if err != nil {
			l.Fatalln("home:", err)
		}

		newCfg := config.New(myID)
		newCfg.Folders = []config.FolderConfiguration{
			{
				ID:              "default",
				Path:            defaultFolder,
				RescanIntervalS: 60,
				Devices:         []config.FolderDeviceConfiguration{{DeviceID: myID}},
			},
		}
		newCfg.Devices = []config.DeviceConfiguration{
			{
				DeviceID:  myID,
				Addresses: []string{"dynamic"},
				Name:      myName,
			},
		}

		port, err := getFreePort("127.0.0.1", 8080)
		if err != nil {
			l.Fatalln("get free port (GUI):", err)
		}
		newCfg.GUI.Address = fmt.Sprintf("127.0.0.1:%d", port)

		port, err = getFreePort("0.0.0.0", 22000)
		if err != nil {
			l.Fatalln("get free port (BEP):", err)
		}
		newCfg.Options.ListenAddress = []string{fmt.Sprintf("0.0.0.0:%d", port)}

		cfg = config.Wrap(cfgFile, newCfg)
		cfg.Save()
		l.Infof("Edit %s to taste or use the GUI\n", cfgFile)
	}

	if cfg.Raw().OriginalVersion != config.CurrentVersion {
		l.Infoln("Archiving a copy of old config file format")
		// Archive a copy
		osutil.Rename(cfgFile, cfgFile+fmt.Sprintf(".v%d", cfg.Raw().OriginalVersion))
		// Save the new version
		cfg.Save()
	}

	if len(profiler) > 0 {
		go func() {
			l.Debugln("Starting profiler on", profiler)
			runtime.SetBlockProfileRate(1)
			err := http.ListenAndServe(profiler, nil)
			if err != nil {
				l.Fatalln(err)
			}
		}()
	}

	// The TLS configuration is used for both the listening socket and outgoing
	// connections.

	tlsCfg := &tls.Config{
		Certificates:           []tls.Certificate{cert},
		NextProtos:             []string{"bep/1.0"},
		ServerName:             myID.String(),
		ClientAuth:             tls.RequestClientCert,
		SessionTicketsDisabled: true,
		InsecureSkipVerify:     true,
		MinVersion:             tls.VersionTLS12,
	}

	// If the read or write rate should be limited, set up a rate limiter for it.
	// This will be used on connections created in the connect and listen routines.

	opts := cfg.Options()

	if opts.MaxSendKbps > 0 {
		writeRateLimit = ratelimit.NewBucketWithRate(float64(1000*opts.MaxSendKbps), int64(5*1000*opts.MaxSendKbps))
	}
	if opts.MaxRecvKbps > 0 {
		readRateLimit = ratelimit.NewBucketWithRate(float64(1000*opts.MaxRecvKbps), int64(5*1000*opts.MaxRecvKbps))
	}

	// If this is the first time the user runs v0.9, archive the old indexes and config.
	archiveLegacyConfig()

	db, err := leveldb.OpenFile(filepath.Join(confDir, "index"), &opt.Options{CachedOpenFiles: 100})
	if err != nil {
		l.Fatalln("Cannot open database:", err, "- Is another copy of Syncthing already running?")
	}

	// Remove database entries for folders that no longer exist in the config
	folders := cfg.Folders()
	for _, folder := range files.ListFolders(db) {
		if _, ok := folders[folder]; !ok {
			l.Infof("Cleaning data for dropped folder %q", folder)
			files.DropFolder(db, folder)
		}
	}

	m := model.NewModel(cfg, myName, "syncthing", Version, db)

nextFolder:
	for id, folder := range cfg.Folders() {
		if folder.Invalid != "" {
			continue
		}
		folder.Path, err = osutil.ExpandTilde(folder.Path)
		if err != nil {
			l.Fatalln("home:", err)
		}
		m.AddFolder(folder)

		fi, err := os.Stat(folder.Path)
		if m.CurrentLocalVersion(id) > 0 {
			// Safety check. If the cached index contains files but the
			// folder doesn't exist, we have a problem. We would assume
			// that all files have been deleted which might not be the case,
			// so mark it as invalid instead.
			if err != nil || !fi.IsDir() {
				l.Warnf("Stopping folder %q - path does not exist, but has files in index", folder.ID)
				cfg.InvalidateFolder(id, "folder path missing")
				continue nextFolder
			}
		} else if os.IsNotExist(err) {
			// If we don't have any files in the index, and the directory
			// doesn't exist, try creating it.
			err = os.MkdirAll(folder.Path, 0700)
		}

		if err != nil {
			// If there was another error or we could not create the
			// path, the folder is invalid.
			l.Warnf("Stopping folder %q - %v", err)
			cfg.InvalidateFolder(id, err.Error())
			continue nextFolder
		}
	}

	// GUI

	guiCfg := overrideGUIConfig(cfg.GUI(), guiAddress, guiAuthentication, guiAPIKey)

	if guiCfg.Enabled && guiCfg.Address != "" {
		addr, err := net.ResolveTCPAddr("tcp", guiCfg.Address)
		if err != nil {
			l.Fatalf("Cannot start GUI on %q: %v", guiCfg.Address, err)
		} else {
			var hostOpen, hostShow string
			switch {
			case addr.IP == nil:
				hostOpen = "localhost"
				hostShow = "0.0.0.0"
			case addr.IP.IsUnspecified():
				hostOpen = "localhost"
				hostShow = addr.IP.String()
			default:
				hostOpen = addr.IP.String()
				hostShow = hostOpen
			}

			var proto = "http"
			if guiCfg.UseTLS {
				proto = "https"
			}

			urlShow := fmt.Sprintf("%s://%s/", proto, net.JoinHostPort(hostShow, strconv.Itoa(addr.Port)))
			l.Infoln("Starting web GUI on", urlShow)
			err := startGUI(guiCfg, guiAssets, m)
			if err != nil {
				l.Fatalln("Cannot start GUI:", err)
			}
			if opts.StartBrowser && !noBrowser && !stRestarting {
				urlOpen := fmt.Sprintf("%s://%s/", proto, net.JoinHostPort(hostOpen, strconv.Itoa(addr.Port)))
				openURL(urlOpen)
			}
		}
	}

	// Clear out old indexes for other devices. Otherwise we'll start up and
	// start needing a bunch of files which are nowhere to be found. This
	// needs to be changed when we correctly do persistent indexes.
	for _, folderCfg := range cfg.Folders() {
		if folderCfg.Invalid != "" {
			continue
		}
		for _, device := range folderCfg.DeviceIDs() {
			if device == myID {
				continue
			}
			m.Index(device, folderCfg.ID, nil)
		}
	}

	// Remove all .idx* files that don't belong to an active folder.

	validIndexes := make(map[string]bool)
	for _, folder := range cfg.Folders() {
		dir, err := osutil.ExpandTilde(folder.Path)
		if err != nil {
			l.Fatalln("home:", err)
		}
		id := fmt.Sprintf("%x", sha1.Sum([]byte(dir)))
		validIndexes[id] = true
	}

	allIndexes, err := filepath.Glob(filepath.Join(confDir, "*.idx*"))
	if err == nil {
		for _, idx := range allIndexes {
			bn := filepath.Base(idx)
			fs := strings.Split(bn, ".")
			if len(fs) > 1 {
				if _, ok := validIndexes[fs[0]]; !ok {
					l.Infoln("Removing old index", bn)
					os.Remove(idx)
				}
			}
		}
	}

	// The default port we announce, possibly modified by setupUPnP next.

	addr, err := net.ResolveTCPAddr("tcp", opts.ListenAddress[0])
	if err != nil {
		l.Fatalln("Bad listen address:", err)
	}
	externalPort = addr.Port

	// UPnP

	if opts.UPnPEnabled {
		setupUPnP()
	}

	// Routine to connect out to configured devices
	discoverer = discovery(externalPort)
	go listenConnect(myID, m, tlsCfg)

	for _, folder := range cfg.Folders() {
		if folder.Invalid != "" {
			continue
		}

		// Routine to pull blocks from other devices to synchronize the local
		// folder. Does not run when we are in read only (publish only) mode.
		if folder.ReadOnly {
			l.Okf("Ready to synchronize %s (read only; no external updates accepted)", folder.ID)
			m.StartFolderRO(folder.ID)
		} else {
			l.Okf("Ready to synchronize %s (read-write)", folder.ID)
			m.StartFolderRW(folder.ID)
		}
	}

	if cpuProfile {
		f, err := os.Create(fmt.Sprintf("cpu-%d.pprof", os.Getpid()))
		if err != nil {
			log.Fatal(err)
		}
		pprof.StartCPUProfile(f)
		defer pprof.StopCPUProfile()
	}

	for _, device := range cfg.Devices() {
		if len(device.Name) > 0 {
			l.Infof("Device %s is %q at %v", device.DeviceID, device.Name, device.Addresses)
		}
	}

	if opts.URAccepted > 0 && opts.URAccepted < usageReportVersion {
		l.Infoln("Anonymous usage report has changed; revoking acceptance")
		opts.URAccepted = 0
		cfg.SetOptions(opts)
	}
	if opts.URAccepted >= usageReportVersion {
		go usageReportingLoop(m)
		go func() {
			time.Sleep(10 * time.Minute)
			err := sendUsageReport(m)
			if err != nil {
				l.Infoln("Usage report:", err)
			}
		}()
	}

	if opts.RestartOnWakeup {
		go standbyMonitor()
	}

	if opts.AutoUpgradeIntervalH > 0 {
		go autoUpgrade()
	}

	events.Default.Log(events.StartupComplete, nil)
	go generateEvents()

	code := <-stop

	l.Okln("Exiting")
	os.Exit(code)
}
示例#6
0
func main() {
	defConfDir, err := getDefaultConfDir()
	if err != nil {
		l.Fatalln("home:", err)
	}
	flag.StringVar(&generateDir, "generate", "", "Generate key in specified dir, then exit")
	flag.StringVar(&guiAddress, "gui-address", guiAddress, "Override GUI address")
	flag.StringVar(&guiAuthentication, "gui-authentication", guiAuthentication, "Override GUI authentication; username:password")
	flag.StringVar(&guiAPIKey, "gui-apikey", guiAPIKey, "Override GUI API key")
	flag.StringVar(&confDir, "home", "", "Set configuration directory")
	flag.IntVar(&logFlags, "logflags", logFlags, "Select information in log line prefix")
	flag.BoolVar(&noBrowser, "no-browser", false, "Do not start browser")
	flag.BoolVar(&noRestart, "no-restart", noRestart, "Do not restart; just exit")
	flag.BoolVar(&reset, "reset", false, "Prepare to resync from cluster")
	flag.BoolVar(&doUpgrade, "upgrade", false, "Perform upgrade")
	flag.BoolVar(&doUpgradeCheck, "upgrade-check", false, "Check for available upgrade")
	flag.BoolVar(&showVersion, "version", false, "Show version")

	flag.Usage = usageFor(flag.CommandLine, usage, fmt.Sprintf(extraUsage, defConfDir))
	flag.Parse()

	if confDir == "" {
		// Not set as default above because the string can be really long.
		confDir = defConfDir
	}

	if showVersion {
		fmt.Println(LongVersion)
		return
	}

	l.SetFlags(logFlags)

	if generateDir != "" {
		dir, err := osutil.ExpandTilde(generateDir)
		if err != nil {
			l.Fatalln("generate:", err)
		}

		info, err := os.Stat(dir)
		if err != nil {
			l.Fatalln("generate:", err)
		}
		if !info.IsDir() {
			l.Fatalln(dir, "is not a directory")
		}

		cert, err := loadCert(dir, "")
		if err == nil {
			l.Warnln("Key exists; will not overwrite.")
			l.Infoln("Device ID:", protocol.NewDeviceID(cert.Certificate[0]))
			return
		}

		newCertificate(dir, "")
		cert, err = loadCert(dir, "")
		if err != nil {
			l.Fatalln("load cert:", err)
		}
		if err == nil {
			l.Infoln("Device ID:", protocol.NewDeviceID(cert.Certificate[0]))
		}
		return
	}

	confDir, err := osutil.ExpandTilde(confDir)
	if err != nil {
		l.Fatalln("home:", err)
	}

	if info, err := os.Stat(confDir); err == nil && !info.IsDir() {
		l.Fatalln("Config directory", confDir, "is not a directory")
	}

	// Ensure that our home directory exists.
	ensureDir(confDir, 0700)

	if doUpgrade || doUpgradeCheck {
		rel, err := upgrade.LatestRelease(strings.Contains(Version, "-beta"))
		if err != nil {
			l.Fatalln("Upgrade:", err) // exits 1
		}

		if upgrade.CompareVersions(rel.Tag, Version) <= 0 {
			l.Infof("No upgrade available (current %q >= latest %q).", Version, rel.Tag)
			os.Exit(exitNoUpgradeAvailable)
		}

		l.Infof("Upgrade available (current %q < latest %q)", Version, rel.Tag)

		if doUpgrade {
			// Use leveldb database locks to protect against concurrent upgrades
			_, err = leveldb.OpenFile(filepath.Join(confDir, "index"), &opt.Options{CachedOpenFiles: 100})
			if err != nil {
				l.Fatalln("Cannot upgrade, database seems to be locked. Is another copy of Syncthing already running?")
			}

			err = upgrade.UpgradeTo(rel, GoArchExtra)
			if err != nil {
				l.Fatalln("Upgrade:", err) // exits 1
			}
			l.Okf("Upgraded to %q", rel.Tag)
			return
		} else {
			return
		}
	}

	if reset {
		resetFolders()
		return
	}

	if noRestart {
		syncthingMain()
	} else {
		monitorMain()
	}
}