Example #1
0
// This example demonstrates a trivial client.
func ExampleDial() {
	origin := "http://localhost/"
	url := "ws://localhost:12345/ws"
	ws, err := websocket.Dial(url, "", origin)
	if err != nil {
		log.Fatal(err)
	}
	if _, err := ws.Write([]byte("hello, world!\n")); err != nil {
		log.Fatal(err)
	}
	var msg = make([]byte, 512)
	var n int
	if n, err = ws.Read(msg); err != nil {
		log.Fatal(err)
	}
	fmt.Printf("Received: %s.\n", msg[:n])
}
Example #2
0
func websocketProxyDial(urlString, origin string) (ws *websocket.Conn, err error) {
	if os.Getenv("HTTP_PROXY") == "" {
		return websocket.Dial(urlString, "", origin)
	}

	purl, err := url.Parse(os.Getenv("HTTP_PROXY"))
	if err != nil {
		return nil, err
	}

	config, err := websocket.NewConfig(urlString, origin)
	if err != nil {
		return nil, err
	}

	client, err := websocketHTTPConnect(purl.Host, urlString)
	if err != nil {
		return nil, err
	}

	switch config.Location.Scheme {
	case "ws":
	case "wss":
		tlsClient := tls.Client(client, &tls.Config{
			ServerName: strings.Split(config.Location.Host, ":")[0],
		})
		err := tlsClient.Handshake()
		if err != nil {
			tlsClient.Close()
			return nil, err
		}
		client = tlsClient

	default:
		return nil, errors.New("invalid websocket schema")
	}

	return websocket.NewClient(config, client)
}