// 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])
}
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)
}