GuacamoleWebSocketTunnelEndpoint Implementation

[Bruno Savard]

Hi,

I'm adding WebSocket support to my Guacamole-driven application.

Mike suggested me to use GuacamoleWebSocketTunnelEndpoint.  For now I'm 
creating a simple tutorial to achieve this.

My simple client (index.html) looks like this
...
             // Get display div from document
            var display = document.getElementById("display");

            // Instantiate tunnel, using a WebSocket or HTTP tunnel for 
communications.
            var tunnel;
            if (window.WebSocket) {
                // If WebSocket available, try to use it.
                tunnel = new Guacamole.ChainedTunnel(
                    new Guacamole.WebSocketTunnel('websocket-tunnel'),
                    new Guacamole.HTTPTunnel('tunnel') );
             } else {
                // If not, then use HTTP tunnel.
                tunnel = new Guacamole.HTTPTunnel('tunnel');
             }
       
            // Instantiate client.
            var client = new Guacamole.Client(tunnel);

            // Add client to display div
            display.appendChild(client.getDisplay().getElement());

            // Error handler
            client.onerror = function(error) {
                alert(error);
            };

            // Connect
            client.connect();
...

And my GuacamoleWebSocketTunnelEndpoint implementation looks like this.  Which 
does nothing but log in Catalina.out.

public class TutorialGuacamoleWebSocketTunnelEndpoint
    extends GuacamoleWebSocketTunnelEndpoint {

    @Override
    protected GuacamoleTunnel createTunnel(Session session, EndpointConfig 
config)
            throws GuacamoleException {

        System.out.println("Using WebSocket connection.");

        // Return a new guacamole tunnel which uses the connected socket
        return null;
    }

}

My issue is the following.

I'm getting an WebSocket Handshare error, which could be ok because of my dummy 
implementation, but I'm not getting any output in Catalina.out. Which make me 
think that there is something wrong in my client.  My Implementation of 
GuacamoleWebSocketTunnelEndpoint in not even called.
-->  WebSocket connection to 'wss://.../tutorial/websocket-tunnel?...' failed: 
Error during WebSocket handshake: Unexpected response code: 404

Any help will be appreciated.

Thanks,

Bruno Savard