On Tue, Dec 2, 2008 at 8:21 AM, Gabriel Rossetti < gabriel.rossetti@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 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', 53) to server list 2008-12-02 08:57:02-0500 [-] starting on 31847 2008-12-02 08:57:02-0500 [-] Starting protocol 2008-12-02 08:57:02-0500 [-] (Port 31847 Closed) 2008-12-02 08:57:02-0500 [-] Stopping protocol 2008-12-02 08:57:02-0500 [-] will retry in 2 seconds 2008-12-02 08:57:02-0500 [-] Stopping factory This will keep trying until you quit. You can set a limit on how many times it retries.

Best regards,

Gabriel

_______________________________________________ Twisted-Python mailing list Twisted-Python@twistedmatrix.com http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python

Phil Mayers wrote:

Christopher Zorn wrote:

...

On Tue, Dec 2, 2008 at 8:21 AM, Gabriel Rossetti mailto:gabriel.rossetti@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.

Yeah, the t.w.p.j.xmlstream.XmlStreamFactory inherits from ReconnectingClientFactory, which is IMHO wrong.

See also:

http://twistedmatrix.com/trac/ticket/3492

Yes, so do I.

Christopher Zorn wrote:

On Tue, Dec 2, 2008 at 8:21 AM, Gabriel Rossetti mailto:gabriel.rossetti@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 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 [-] starting on 31847 2008-12-02 08:57:02-0500 [-] Starting protocol 2008-12-02 08:57:02-0500 [-] (Port 31847 Closed) 2008-12-02 08:57:02-0500 [-] Stopping protocol 2008-12-02 08:57:02-0500 [-] will retry in 2 seconds 2008-12-02 08:57:02-0500 [-] Stopping factory

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