disco#info to the server

Piers Harding piers at ompka.net
Wed Jul 25 12:43:46 UTC 2007


Hi -

I was wondering if others had seen a problem with some clients when
doing service discovery.

I have noticed that when an iq eg:
<iq type='get' id='99' from='piers at gecko.local.net/Gajim'
to='gecko.local.net'><query xmlns='http://jabber.org/protocol/disco#info'/></iq>

is sent from Gajim or Psi and a result comes back:
<iq to='piers at gecko.local.net/Gajim' type='result' id='99'>
<query xmlns='http://jabber.org/protocol/disco#info'>
<identity category='server' type='im' name='djabberd'/>
<feature var='http://jabber.org/protocol/disco#info'/>
<feature var='urn:xmpp:ping'/>
<feature var='vcard-temp'/>
<feature var='jabber:iq:version'/>
</query>
</iq>

The client does not process the return.  If I do the same test with
jabber.org which is running ejabberd, I can see that the result is
stamped with a from jid - eg:
<iq id="30" type="result"  to='piers at ompka.net/Gajim' from='jabber.org'>
<query xmlns='http://jabber.org/protocol/disco#items'>
....


If I modify DJabberd::IQ ->
sub send_reply {
    my DJabberd::IQ $self = shift;
    my ($type, $raw) = @_;

    my $conn = $self->{connection}
        or return;

    $raw ||= "";
    my $id = $self->id;
    my $bj = $conn->bound_jid;
    my $from_jid = $self->to;
    my $to = $bj ? ("to='" .  $bj->as_string_exml . "'") : "";
    my $from = $from_jid ?  ("from='" . $from_jid . "'") : "";
    my $xml = qq{<iq $to $from type='$type' id='$id'>$raw</iq>};
    $conn->xmllog->info($xml);
    $conn->write(\$xml);
}

So that it is stamped with a from address, then djabberd exhibits the
same behaviour.

Is this correct or is it a case of the client being broken?

Thanks,
Piers Harding.


-- 
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xmpp:piers at ompka.net



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