func (tt *TunnelTest) addClient(ident string, cfg *tunnel.ClientConfig) error {
if _, ok := tt.Clients[ident]; ok {
return fmt.Errorf("tunnel %q is already being served", ident)
}
c, err := tunnel.NewClient(cfg)
if err != nil {
return err
}
done := make(chan struct{})
tt.Server.OnConnect(ident, func() error {
close(done)
return nil
})
go c.Start()
<-c.StartNotify()
select {
case <-time.After(10 * time.Second):
return errors.New("timed out after 10s waiting on client to establish control conn")
case <-done:
}
tt.Clients[ident] = c
return nil
}
// NewClient gives new, unstarted tunnel client for the given options.
func NewClient(opts *ClientOptions) (*Client, error) {
optsCopy := *opts
if optsCopy.Log == nil {
optsCopy.Log = logging.NewCustom("tunnelclient", optsCopy.Debug)
}
// TODO(rjeczalik): fix production to use WebSocket by default
//
// BUG(rjeczalik): starting a kite that is not registered to
// kontrol will prevent the kite from updating it's keypair,
// when it changes in kontrol - the only fix is to restart
// kite process.
k := kite.New("tunnelclient", "0.0.1")
k.Config = optsCopy.Kite.Config.Copy()
k.Config.Transport = config.WebSocket
c := &Client{
kite: k,
opts: &optsCopy,
tunnelKiteURL: optsCopy.tunnelKiteURL(),
stateChanges: make(chan *tunnel.ClientStateChange, 128),
regserv: make(chan map[string]*Tunnel, 1),
services: make(Services),
routes: make(map[int]string),
}
// If VirtualHost was configured, try to connect to it first.
if c.opts.LastVirtualHost != "" {
c.tunnelKiteURL = fmt.Sprintf("http://%s/kite", c.opts.LastVirtualHost)
c.connected = &RegisterResult{
VirtualHost: c.opts.LastVirtualHost,
ServerAddr: c.opts.LastVirtualHost,
}
}
c.kite.ClientFunc = httputil.ClientFunc(opts.Debug)
cfg := &tunnel.ClientConfig{
FetchIdentifier: c.fetchIdent,
FetchServerAddr: c.fetchServerAddr,
FetchLocalAddr: c.fetchLocalAddr,
LocalAddr: c.opts.LocalAddr,
Debug: c.opts.Debug,
Log: c.opts.Log.New("transport"),
StateChanges: c.stateChanges,
}
client, err := tunnel.NewClient(cfg)
if err != nil {
return nil, err
}
c.client = client
return c, nil
}
func TestNoHost(t *testing.T) {
tt, err := tunneltest.Serve(singleHTTP(handlerEchoHTTP))
if err != nil {
t.Fatal(err)
}
defer tt.Close()
noBackoff := backoff.NewConstantBackOff(time.Duration(-1))
unknown, err := tunnel.NewClient(&tunnel.ClientConfig{
Identifier: "unknown",
ServerAddr: tt.ServerAddr().String(),
Backoff: noBackoff,
Debug: testing.Verbose(),
})
if err != nil {
t.Fatalf("client error: %s", err)
}
unknown.Start()
defer unknown.Close()
if err := tt.ServerStateRecorder.WaitTransition(
tunnel.ClientUnknown,
tunnel.ClientClosed,
); err != nil {
t.Fatal(err)
}
unknown.Start()
if err := tt.ServerStateRecorder.WaitTransition(
tunnel.ClientClosed,
tunnel.ClientClosed,
); err != nil {
t.Fatal(err)
}
}