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Group Chat
akchase47 2011-08-15, 19:10 #1
Member since Jul 2011 · 8 posts
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Subject: Group Chat
Hello all,

I am currently working on an xmpp server and everything is going quite well.

One questions I have though is what is the best way in code to determine that a presence from a client is the first initial group chat presence.

So how do I check this:

<presence xmlns="jabber:client" to="groupchat@chat.example.com/user1"><x xmlns="http://jabber.org/protocol/muc" /></presence>

To see if it contains the <x/> element with a namespace of MUC?

I am thinking that there must be some nice easy way like working with IQs and Query elements within those but haven't been able to find it yet.

Thanks,

Chase
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Alex 2011-08-15, 20:01 #2
Member since Feb 2003 · 2700 posts · Location: Germany
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I would check the to Jid. Group chat presence are always sent to a group chat service.

Alex
Alexander Gnauck
AG-Software
akchase47 2011-08-15, 20:52 #3
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Well, right now I am testing it internally, and I am using either Digsby or Pandion as clients to test with.

The way I set up the clients is pointing directly to an IP address instead of a domain name.

The problem with that is even if the group chat presence is sent to "chat.example.com" that presence still comes in over the stream attached to the main service at "example.com". Should I just check that every presence received on "example.com" is actually to "chat.example.com" and forward it to the group chat service.

Right now I was going to put the main service and the group chat service at the same place, is that bad to do?
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Alex 2011-08-15, 21:21 #4
Member since Feb 2003 · 2700 posts · Location: Germany
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yes of course all packets are coming over the same connection. But normally you check the to attribute, namespaces and other stuff to forward to packets to the internal classes, module or plugins for further processing.

Alex
Alexander Gnauck
AG-Software
akchase47 2011-08-15, 22:37 #5
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I got confused about it "going to a group chat service", made it sound like the information should have gone somewhere else to be processed. I was planning to do it exactly how you have said here, thanks for helping me out.

Thanks,

Chase
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Alex 2011-08-15, 23:40 #6
Member since Feb 2003 · 2700 posts · Location: Germany
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in XMPP the group chat service could run also in a separate process connected over the xmpp component protocol to your server. I this case you would have to forward the packet to this process.
Alexander Gnauck
AG-Software
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