func dialWebsocket(addr, path string, header http.Header, opts DialOpts, rootCAs *x509.CertPool, try *parallel.Try) error {
cfg, err := setUpWebsocket(addr, path, header, rootCAs)
if err != nil {
return err
}
return try.Start(newWebsocketDialer(cfg, opts))
}
func dialWebsocket(addr, environUUID string, opts DialOpts, rootCAs *x509.CertPool, try *parallel.Try) error {
cfg, err := setUpWebsocket(addr, environUUID, rootCAs)
if err != nil {
return err
}
return try.Start(newWebsocketDialer(cfg, opts))
}
// startDialWebsocket starts websocket connection to a single address
// on the given try instance.
func startDialWebsocket(try *parallel.Try, addr, path string, opts DialOpts, tlsConfig *tls.Config) error {
// origin is required by the WebSocket API, used for "origin policy"
// in websockets. We pass localhost to satisfy the API; it is
// inconsequential to us.
const origin = "http://localhost/"
cfg, err := websocket.NewConfig("wss://"+addr+path, origin)
if err != nil {
return errors.Trace(err)
}
cfg.TlsConfig = tlsConfig
return try.Start(newWebsocketDialer(cfg, opts))
}