Notification when a user forcibly disconnect from current room

server.js

@@ -16,6 +16,7 @@ app.io.route('room', {
         req.socket.emit('room:joined',req.data);
         req.socket.join(req.data);
         req.socket.broadcast.to(req.data).emit('message:server', 'A person joined this room');
+        req.socket.current_room = req.data;
       }
     },
     leave: function(req) {
@@ -23,6 +24,7 @@ app.io.route('room', {
         req.socket.emit('room:left');
         req.socket.leave(req.data);
         req.socket.broadcast.to(req.data).emit('message:server', 'A person left this room');
+        req.socket.current_room = undefined;
       }
     } 
 });
@@ -34,6 +36,16 @@ app.io.route('message', {
     }
 });
 
+app.io.sockets.on('connection', function(socket) {
+   socket.on('disconnect', function() {
+      // Notify other users of the room
+      if( socket.current_room !== undefined ) {
+        socket.broadcast.to(socket.current_room).emit('message:server', 'A person left this room');
+        console.log('Person left' + socket.current_room);
+      }
+   });
+});
+
 app.listen(8080, function(){
   console.log('listening on *:8080');
 });