mirror of
https://github.com/octoleo/syncthing.git
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Refactor out methods resolveAddresses, connectDirect, connectViaRelay
This commit is contained in:
Jakob Borg
parent
19bf51cefb
commit
242cce022a
@ -280,49 +280,18 @@ func (s *connectionSvc) connect() {
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continue
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}
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var addrs []string
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var relays []discover.Relay
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for _, addr := range deviceCfg.Addresses {
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if addr == "dynamic" {
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if s.discoverer != nil {
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if t, r, err := s.discoverer.Lookup(deviceID); err == nil {
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addrs = append(addrs, t...)
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relays = append(relays, r...)
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}
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}
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} else {
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addrs = append(addrs, addr)
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}
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}
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addrs, relays := s.resolveAddresses(deviceID, deviceCfg.Addresses)
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for _, addr := range addrs {
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uri, err := url.Parse(addr)
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if err != nil {
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l.Infoln("Failed to parse connection url:", addr, err)
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continue
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if conn := s.connectDirect(deviceID, addr); conn != nil {
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if connected {
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s.model.Close(deviceID, fmt.Errorf("switching connections"))
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}
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s.conns <- model.IntermediateConnection{
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conn, model.ConnectionTypeDirectDial,
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}
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continue nextDevice
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}
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dialer, ok := dialers[uri.Scheme]
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if !ok {
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l.Infoln("Unknown address schema", uri)
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continue
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}
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l.Debugln("dial", deviceCfg.DeviceID, uri)
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conn, err := dialer(uri, s.tlsCfg)
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if err != nil {
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l.Debugln("dial failed", deviceCfg.DeviceID, uri, err)
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continue
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}
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if connected {
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s.model.Close(deviceID, fmt.Errorf("switching connections"))
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}
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s.conns <- model.IntermediateConnection{
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conn, model.ConnectionTypeDirectDial,
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}
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continue nextDevice
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}
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// Only connect via relays if not already connected
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@ -345,45 +314,12 @@ func (s *connectionSvc) connect() {
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s.lastRelayCheck[deviceID] = time.Now()
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for _, addr := range relays {
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uri, err := url.Parse(addr.URL)
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if err != nil {
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l.Infoln("Failed to parse relay connection url:", addr, err)
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continue
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if conn := s.connectViaRelay(deviceID, addr); conn != nil {
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s.conns <- model.IntermediateConnection{
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conn, model.ConnectionTypeRelayDial,
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}
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continue nextDevice
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}
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inv, err := client.GetInvitationFromRelay(uri, deviceID, s.tlsCfg.Certificates)
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if err != nil {
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l.Debugf("Failed to get invitation for %s from %s: %v", deviceID, uri, err)
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continue
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} else {
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l.Debugln("Succesfully retrieved relay invitation", inv, "from", uri)
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}
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conn, err := client.JoinSession(inv)
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if err != nil {
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l.Debugf("Failed to join relay session %s: %v", inv, err)
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continue
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} else {
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l.Debugln("Sucessfully joined relay session", inv)
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}
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var tc *tls.Conn
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if inv.ServerSocket {
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tc = tls.Server(conn, s.tlsCfg)
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} else {
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tc = tls.Client(conn, s.tlsCfg)
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}
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err = tc.Handshake()
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if err != nil {
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l.Infof("TLS handshake (BEP/relay %s): %v", inv, err)
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tc.Close()
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continue
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}
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s.conns <- model.IntermediateConnection{
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tc, model.ConnectionTypeRelayDial,
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}
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continue nextDevice
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}
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}
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@ -395,6 +331,84 @@ func (s *connectionSvc) connect() {
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}
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}
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func (s *connectionSvc) resolveAddresses(deviceID protocol.DeviceID, inAddrs []string) (addrs []string, relays []discover.Relay) {
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for _, addr := range inAddrs {
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if addr == "dynamic" {
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if s.discoverer != nil {
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if t, r, err := s.discoverer.Lookup(deviceID); err == nil {
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addrs = append(addrs, t...)
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relays = append(relays, r...)
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}
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}
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} else {
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addrs = append(addrs, addr)
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}
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}
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return
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}
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func (s *connectionSvc) connectDirect(deviceID protocol.DeviceID, addr string) *tls.Conn {
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uri, err := url.Parse(addr)
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if err != nil {
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l.Infoln("Failed to parse connection url:", addr, err)
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return nil
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}
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dialer, ok := dialers[uri.Scheme]
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if !ok {
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l.Infoln("Unknown address schema", uri)
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return nil
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}
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l.Debugln("dial", deviceID, uri)
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conn, err := dialer(uri, s.tlsCfg)
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if err != nil {
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l.Debugln("dial failed", deviceID, uri, err)
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return nil
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}
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return conn
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}
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func (s *connectionSvc) connectViaRelay(deviceID protocol.DeviceID, addr discover.Relay) *tls.Conn {
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uri, err := url.Parse(addr.URL)
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if err != nil {
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l.Infoln("Failed to parse relay connection url:", addr, err)
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return nil
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}
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inv, err := client.GetInvitationFromRelay(uri, deviceID, s.tlsCfg.Certificates)
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if err != nil {
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l.Debugf("Failed to get invitation for %s from %s: %v", deviceID, uri, err)
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return nil
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}
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l.Debugln("Succesfully retrieved relay invitation", inv, "from", uri)
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conn, err := client.JoinSession(inv)
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if err != nil {
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l.Debugf("Failed to join relay session %s: %v", inv, err)
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return nil
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}
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l.Debugln("Sucessfully joined relay session", inv)
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var tc *tls.Conn
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if inv.ServerSocket {
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tc = tls.Server(conn, s.tlsCfg)
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} else {
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tc = tls.Client(conn, s.tlsCfg)
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}
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err = tc.Handshake()
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if err != nil {
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l.Infof("TLS handshake (BEP/relay %s): %v", inv, err)
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tc.Close()
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return nil
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}
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return tc
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}
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func (s *connectionSvc) acceptRelayConns() {
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for {
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conn := s.relaySvc.Accept()
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