Multi-user chat patches

Jeremy Lawler jeremylawler at
Thu Sep 20 21:05:22 UTC 2007

I have 2 patches to multi-user chat.  Both are ridiculously small, but
also fix what I consider to be serious bugs.

The djabberd_patch_fix_leave_room fixes a problem where when someone
leaves a MUC room, we don't send the presence message back to the
person who left.  This results in clients who will not rejoin chats
because they believe they are still a member.

The djabberd_patch_fix_muc_disco fixes the problem that we don't
properly advertise a chat server to a disco#items query.  My patch
solves the problem, the reason I don't like my fix is that my patch
uses set_config_childservice.  The reason I used this is because there
was no other way (that I'm aware of) to modify the "disco_kids"
element of the vhost.  I didn't want to directly modify the contents
of the object, and I didn't want to add functions to
Basically, I'm looking for feedback.

Also, I am currently modifying DJabberd to use in a call center.  The
major changes to functionality are:
     LDAP authentication (which has been implemented elsewhere)
     Dynamic generation of the roster using the contents of LDAP
     Chat logging (and assorted MUC fixes/features)
     Authorization style patches that will (among other things) allow
users to communicate with their respective bosses without allowing
them to communicate with each other.
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