Re: [Vala] Libsoup websockets

[Baptiste Gelez <gelezbaptiste openmailbox org>]

Le 2016-09-21 15:29, Guillaume Poirier-Morency a écrit :
> Le mercredi 21 septembre 2016 à 15:21 +0100, Baptiste Gelez a écrit :
> > Hi everyone,
> >
> > I'm creating a little app that should be able to communicate with
> > other 
> > processes (both sending and receiving messages). I first tried to do
> > it 
> > by launching child processes and sending/receving messages with 
> > stdout/stdin. But I didn't find how to receive a signal when the
> > child 
> > process is writing on his stdout.
> >
> > Then, I tried with websockets. I use the libsoup solution. This is
> > my 
> > code :
> >
> > const uint16 port = 8080;
> >
> > InetAddress address = new InetAddress.loopback (SocketFamily.IPV4);
> > InetSocketAddress inetaddress = new InetSocketAddress (address,
> > port);
> >
> > GLib.Socket socket = new GLib.Socket (SocketFamily.IPV4, 
> > SocketType.STREAM, SocketProtocol.TCP);
> > socket.bind (inetaddress, true);
> > socket.listen ();
> >
> > Server serv = new Server (null);
> > serv.add_websocket_handler (null, null, null, (server, conn, path, 
> > client) => {
> >      conn.message.connect ((type, message) => {
> >              // receive messages en responds ...
> >          });
> >      });
> > serv.listen_socket (socket, 0);
> >
> > But when I try to connect to ws://localhost (with JavaScript) it
> > tells 
> > me "Firefox can't establish a connection with the server at the
> > address 
> > ws://localhost/."
> >
> > Valadoc and libsoup C documentation are really poor on Websockets.
> > Can 
> > you help me to find where is the problem, and how to solve it,
> > please. 
> > Or at least, giving me some example codes of websocket servers with 
> > libsoup (I can't find any). Thank you.
> >
> > Baptiste.
> > _______________________________________________
> > vala-list mailing list
> > vala-list gnome org
> > https://mail.gnome.org/mailman/listinfo/vala-list
>
> You should try the 'ws://localhost:8080/' URI instead. It's also
> necessary to run a GLib.MainLoop.
>
> Also, you don't need to bind a socket manually if you only want to
> listen on the loopback interface, 'listen_local' does that already.
>
> Here's a fully working example:
>
>     using GLib;
>     using Soup;
>
>     var serv = new Server (null);
>     serv.add_websocket_handler (null, null, null, (server, conn, path,
>     client) => {
>          conn.message.connect ((type, message) => {
>                  // receive messages en responds ...
>              });
>          });
>     serv.listen_local(8080, 0);
>
>     new MainLoop ().run ();
>
> Then connect to 'ws://localhost:8080/'.

How stupid I am ! I'll try your solution, thanks a lot.