[kopete-bugs] [Bug 181481] New: Kopete cannot login to gmx-Jabber servers (and probably many other servers)

[Robert Wohlrab]

http://bugs.kde.org/show_bug.cgi?id=181481

           Summary: Kopete cannot login to gmx-Jabber servers (and probably
                    many other servers)
           Product: kopete
           Version: unspecified
          Platform: Compiled Sources
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Jabber Plugin
        AssignedTo: kopete-bugs at kde.org
        ReportedBy: robert.wohlrab at gmx.de


Version:            (using Devel)
OS:                Linux
Installed from:    Compiled sources

I tried to connect to GMX's jabber server and got the information that this is
a unknown host. A quick check with PSI showed me that the server works fine and
only kopete isn't able to connect.
My current version of kopete is Version 0.60.82

Further investigations showed that the first packet send to the server differs
between kopete and PSI

PSI:
<?xml version="1.0"?>
<stream:stream xmlns:stream="http://etherx.jabber.org/streams" version="1.0"
xmlns="jabber:client" to="gmx.de" xml:lang="en"
xmlns:xml="http://www.w3.org/XML/1998/namespace" >

Kopete:
<?xml version="1.0"?>
<stream:stream xmlns:stream="http://etherx.jabber.org/streams"
xmlns="jabber:client" to="gmx.de" >

I tested it with `cat bad|nc jabber.gmx.net 5222` but both versions showed the
same behavior and the server send only

<?xml version='1.0'?><stream:stream xmlns='jabber:client'
xmlns:stream='http://etherx.jabber.org/streams' id='1839397057'
from='dummyhost' xml:lang='en'><stream:error><host-unknown
xmlns='urn:ietf:params:xml:ns:xmpp-streams'/></stream:error></stream:stream>

The next one was to check which server I connect to... and this seems to be the
problem. Kopete connects to gmx.de (213.165.65.50) and PSI to xmpp-gmx.gmx.net

A quick check which DNS packets were send showed the really difference. Kopete
asks for the ip of gmx.de and PSI asks about `host -t SRV -c IN
_xmpp-client._tcp.gmx.de` (and maybe falls back if to kopetes behaviour when it
fails).

See http://xmpp.org/rfcs/rfc3920.html#rfc.section.14.3 for more information
about that.


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