func Open(info *Info, opts DialOpts) (*State, error) {
// TODO Select a random address from info.Addrs
// and only fail when we've tried all the addresses.
// TODO what does "origin" really mean, and is localhost always ok?
cfg, err := websocket.NewConfig("wss://"+info.Addrs[0]+"/", "http://localhost/")
if err != nil {
return nil, err
}
pool := x509.NewCertPool()
xcert, err := cert.ParseCert(info.CACert)
if err != nil {
return nil, err
}
pool.AddCert(xcert)
cfg.TlsConfig = &tls.Config{
RootCAs: pool,
ServerName: "anything",
}
var conn *websocket.Conn
openAttempt := utils.AttemptStrategy{
Total: opts.Timeout,
Delay: opts.RetryDelay,
}
for a := openAttempt.Start(); a.Next(); {
log.Infof("state/api: dialing %q", cfg.Location)
conn, err = websocket.DialConfig(cfg)
if err == nil {
break
}
log.Errorf("state/api: %v", err)
}
if err != nil {
return nil, err
}
log.Infof("state/api: connection established")
client := rpc.NewConn(jsoncodec.NewWebsocket(conn))
client.Start()
st := &State{
client: client,
conn: conn,
}
if info.Tag != "" || info.Password != "" {
if err := st.Login(info.Tag, info.Password, info.Nonce); err != nil {
conn.Close()
return nil, err
}
}
st.broken = make(chan struct{})
go st.heartbeatMonitor()
return st, nil
}
func (srv *Server) serveConn(wsConn *websocket.Conn) error {
codec := jsoncodec.NewWebsocket(wsConn)
if loggo.GetLogger("").EffectiveLogLevel() >= loggo.DEBUG {
codec.SetLogging(true)
}
conn := rpc.NewConn(codec)
if err := conn.Serve(newStateServer(srv, conn), serverError); err != nil {
return err
}
conn.Start()
select {
case <-conn.Dead():
case <-srv.tomb.Dying():
}
return conn.Close()
}