I'd like to allow a client to keep track of the list of rooms on a multi-user chat service provided by ejabberd. This would require receiving notifications of room creation/destruction and presence events for all rooms on the server.
Is there a way to subscribe to receive notifications about such events without sending a presence event to, and therefore joining the roster of all rooms?
FWIW, I've found out how to send a request for the room list (http://xmpp.org/extensions/xep-0045.html#disco-rooms) and I've been trying to make sense of the pubsub system (http://xmpp.org/extensions/xep-0060.html#glossary) in hope that I'd find a solution there but nothing seems obvious.
What's the right(TM) way to do this in XMPP land?
Ubuntu 10.04 + ejabberd 2.1.5-3+squeeze1 + Strophe.js & BOSH & jQuery
