configuring socket server

handler.js

  this.manager.configure( function (){

    this.set('authorization', function (handshakeData, callback) {

      console.log( 'inside authorization......');
      var room_id = handshakeData.query.room;
      var authorized = this.room_trigger[room_id]!=undefined;
      var error = authorized ? undefined : 'room is not available';

      callback(error, authorized);  

    });

  });


	this.manager.sockets.on('connection', function( socket ) {

    var room_id = socket.handshake.query.room;
    var room_name = socketio_room_name(room_id);

    if ( !socket.manager.rooms[room_name] || !socket.manager.roomClients[socket.id][room_name] ) { 

      socket.room_id = room_id;
      socket.join(socket.room_id);

      console.log( 'Socket joined to room: '+ socket.room_id );

    } else {

      console.log( 'Socket already in room, try to join again: '+ room_name );

    }

    socket.on('disconnect', function() {
      // FILTER BY disconnecting the client
      // missing same logic on the server side
      // check if was already on the room
      
      if ( this.room_id && this.manager.room_trigger[this.room_id] )  { 

        var room_name = socketio_room_name(room_id);

        if ( this.manager.rooms[room_name] || this.manager.roomClients[this.id][room_name] ) { 

          this.leave( this.room_id );
          //console.log( 'Socket leaves the room: '+ this.room_id );

        } else {

          console.log( 'Socket try to leave a room in which is not present: '+ room_name );

        }
      }

    });

    
	});