func (s *Session) handleBind(stream conn.Conn, bind *proto.Bind) (err error) {
stream.Debug("Binding new tunnel: %v", bind)
respond := func(resp *proto.BindResp) {
if err = proto.WriteMsg(stream, resp); err != nil {
err = stream.Error("Failed to send bind response: %v", err)
}
}
if err = s.hooks.OnBind(s, bind); err != nil {
return
}
t, err := newTunnel(bind, s, s.binders, s.tunnelHooks)
if err != nil {
respond(&proto.BindResp{Error: err.Error()})
return
}
t.Info("Registered new tunnel on session %s", s.id)
// add it to the list of tunnels
s.addTunnel(t)
// acknowledge success
respond(&proto.BindResp{Url: t.url})
return
}
func (s *Session) handleStream(stream conn.Conn) {
defer s.recoverPanic("Session.handleStream")
defer stream.Close()
// make sure we only process streams while we're not shutting down
if err := s.guard.Enter(); err != nil {
stream.Error("Failing stream, session is shutting down")
return
}
defer s.guard.Exit()
raw, err := proto.ReadMsg(stream)
if err != nil {
stream.Error("Failed to read message: %v")
go s.Shutdown()
return
}
switch msg := raw.(type) {
case *proto.Bind:
err = s.handleBind(stream, msg)
case *proto.Unbind:
err = s.handleUnbind(stream, msg)
default:
err = fmt.Errorf("Unknown message type: %v", reflect.TypeOf(raw))
}
if err != nil {
stream.Error("Error on stream: %v", err)
go s.Shutdown()
return
}
return
}