[JDEV] Disconnected clients and MUC

[chelck at ebs.com]

Can someone explain what happens when a client violently disconnects from a 
Jabber server? My understanding is that the server senses the broken 
connection and sends a <presence type="unavialable"/> on behalf of the client 
to all interested parties. My question is how does the server know which 
parties are interested? In particular how is the user removed from a group 
chat room?

We've been looking at the case where we need to remove a user as a member 
from a members-only room when the user disconnects. The user may or may not 
have joined the room at the time of the disconnect.

Thank you,
Christopher Helck
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