Query Related To Presence Stanza - Forum

roymanish1982

2011-05-18, 08:10 #1

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Subject: Query Related To Presence Stanza

I have a Query Related to Presence Stanzas.
In http://xmpp.org/rfcs/rfc6121.html#presence-initial-outbound under
Server Processing of Outbound Initial Presence section it shows

<presence from='juliet@example.com/balcony'
to='romeo@example.net'/>

But when i dubug the Stanza in my server i am getting

<presence xmlns="jabber:client">
<show>chat</show>
<status>Available</status>
<priority>10</priority>
</presence>

"From" is Missing . How to assign the " From " in the Stanza . i am using

xmppClient.SendPresence(Matrix.Xmpp.Show.chat, "Available", 10);

to send the Prenence to the Server.

Alex can u pls Guide me.

Alex

2011-05-18, 08:19 #2

Member since Feb 2003 · 4449 posts · Location: Germany
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You don't need the from when you send it from a client.

Alex

roymanish1982

2011-05-18, 08:33 #3

Member since Mar 2011 · 20 posts
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yes ,

so i did

Presence p = new Presence();
      p.From = txtUsername.Text;
      p.Show = Matrix.Xmpp.Show.chat;
      p.Status = "Available";
      p.Priority = 10;

xmppClient.Send(p);

And in Server i did

if((e.Stanza as Presence).From != null)
      {

      // route presences here and handle all subscription stuff

      ProcessPresence(e.Stanza as Presence);

      }

private void ProcessPresence(Presence presence)
      {
      foreach(var item in Form1.collection)
      {
      if(item.Key != presence.From)
      {
      Socket s = item.Value;

      Presence p = new Presence()
      {
      To = item.Key,
      From = presence.From,
      Status = presence.Status,
      Show = presence.Show,
      };

      Send(p.ToString(false), s);
      }
      }
      }

is this the Right Way for Presence.

roymanish1982

2011-05-18, 09:12 #4

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In reply to post #2

You don't need the from when you send it from a client.

then how server is going to identify whose presence has been updated.

Alex

2011-05-18, 11:24 #5

Member since Feb 2003 · 4449 posts · Location: Germany
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the server knows on which stream and socket this stanza was received. Because you authenticated and binded your resource before sending this stanza the server has all required information.