[Twisted-Python] XMPP server connection question

[Gabriel Rossetti]

Christopher Zorn wrote:
>
>
> On Tue, Dec 2, 2008 at 8:21 AM, Gabriel Rossetti 
> <gabriel.rossetti at arimaz.com <mailto:gabriel.rossetti at arimaz.com>> wrote:
>
>     Gabriel Rossetti wrote:
>
>         Hello everyone,
>
>         I wrote an XMPP client and I have a question, when it tries to
>         connect and the server is not listening, it doesn't send back
>         an error and tries forever. I see that this function
>         (twisted/names/srvconnect.py):
>
>         def _ebGotServers(self, failure):
>               failure.trap(DNSNameError)
>
>               # Some DNS servers reply with NXDOMAIN when in fact
>         there are
>               # just no SRV records for that domain. Act as if we just
>         got an
>               # empty response and use fallback.
>
>               self.servers = []
>               self.orderedServers = []
>
>         traps the exception so it never propagates to me, so I can't
>         handle it. Any ideas? I using the XMPP client example as a
>         base for my code.
>
>         Thank you,
>         Gabriel
>
>     Ok, the code I showed has nothing to do with the problem I think,
>     what I don't get is the client never returns an error if nobody's
>     listening...
>
>
> It may be better to show a log of what is happening.
>
> It should show something like the following :
>
> 2008-12-02 08:57:01-0500 [-] reactor class: 
> twisted.internet.selectreactor.SelectReactor.
> 2008-12-02 08:57:01-0500 [-] Starting factory 
> <twisted.words.protocols.jabber.xmlstream.XmlStreamFactory object at 
> 0xf6b490>
> 2008-12-02 08:57:02-0500 [-] /etc/resolv.conf changed, reparsing
> 2008-12-02 08:57:02-0500 [-] Resolver added ('192.168.2.1 
> <http://192.168.2.1>', 53) to server list
> 2008-12-02 08:57:02-0500 [-] <class 
> 'twisted.names.dns.DNSDatagramProtocol'> starting on 31847
> 2008-12-02 08:57:02-0500 [-] Starting protocol 
> <twisted.names.dns.DNSDatagramProtocol object at 0xfb9a90>
> 2008-12-02 08:57:02-0500 [-] (Port 31847 Closed)
> 2008-12-02 08:57:02-0500 [-] Stopping protocol 
> <twisted.names.dns.DNSDatagramProtocol object at 0xfb9a90>
> 2008-12-02 08:57:02-0500 [-] <twisted.names.srvconnect.SRVConnector 
> instance at 0xa236c8> will retry in 2 seconds
> 2008-12-02 08:57:02-0500 [-] Stopping factory 
> <twisted.words.protocols.jabber.xmlstream.XmlStreamFactory object at 
> 0xf6b490>
>
> This will keep trying until you quit. You can set a limit on how many 
> times it retries.
>
>  
>
>
>     Best regards,
>
>     Gabriel
>
>     ______________________
>
>
Ok, I finally created a class that wraps the client.XMPPClientFactory 
function and calls callbacks when the connection fails. Thanks
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