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roymanish1982 #1
Member since Mar 2011 · 20 posts
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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.
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Alex #2
Member since Feb 2003 · 4307 posts · Location: Germany
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You don't need the from when you send it from a client.

Alex
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roymanish1982 #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.
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roymanish1982 #4
Member since Mar 2011 · 20 posts
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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.
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Alex #5
Member since Feb 2003 · 4307 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.
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