douwengzao5790
2014-02-28 09:39
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无法让go.net/websocket在Nginx后面运行

I'm having trouble getting go.net/websocket to work behind nginx. It works if the application is accessed directly but with nginx, I get an EOF error from Receive.

What am I doing wrong?

Nginx version: 1.5.10

This is my nginx configuration.

location /wstest/ {
    proxy_pass http://localhost:7415/;
    proxy_http_version 1.1;
    proxy_set_header Upgrade "websocket";
    proxy_set_header Connection "Upgrade";
    proxy_buffering off;
}

Go code:

func main() {
    http.HandleFunc("/", home)
    http.Handle("/sock", websocket.Handler(pingpong))

    http.ListenAndServe(":7415", nil)
}

func home(w http.ResponseWriter, r *http.Request) {
    homeTmpl.Execute(w, nil)
}

func pingpong(conn *websocket.Conn) {
    var msg string
    if err := websocket.Message.Receive(conn, &msg); err != nil {
        log.Println("Error while receiving message:", err)
        return
    }

    if msg == "ping" {
        websocket.Message.Send(conn, "pong")
    }
}

var homeTmpl = template.Must(template.New("home").Parse(`
<!doctype html>
<html>
<head>
<title>WS Test</title>
<script>
    var path = window.location.pathname;
    var wsURL = "ws://" + window.location.host +  path.substring(0,   path.lastIndexOf('/')) + "/sock";
    var ws;

    document.addEventListener("DOMContentLoaded", function() {
        ws = new WebSocket(wsURL);
        ws.onopen = function() {
        ws.send("ping");
    };

    ws.onmessage = function(event) {
        document.getElementById("status").innerHTML = "Received: " + String(event.data);
    };
})
</script>
</head>
<body>
<span id="status">Pinging...</span>
</body>
</html>`))

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