node.js - Detect client-side page socket.io

Question

I'm creating a game application with a lobby. When the owner clicks "start" all of the lobby members are redirected to the game page. I have special socket.io disconnect code for the lobby page and the game page. How can I detect which page the client is coming from?

For clarification, it shouldn't be able to be modified client-side.

Answer 1

You want detect client ip address or something else?

Answer 2

You can get the url of the client through

socket.handshake.headers.referer

and parse it with url.parse().