[Gajim-devel] Gajim-svn and problem with SOCKS5 proxy

Marcin Zajączkowski mszpak at wp.pl
Thu Jul 3 21:30:39 CEST 2008

On 03.07.2008 00:35, Marcin Zajączkowski wrote:
> On 2008-07-02 23:20, Yann Leboulanger wrote:
>> Marcin Zajączkowski wrote:
> (...)
>>> Today I was debugging the problem at the privoxy side and it seems that
>>> gajim hangs at the beginning of the conversation, before sending any
>>> "real" data.
>>> At gajim side it looks like (gajim.py -v):
>>> DEBUG: CONNECTproxy start Plugging
>>> <common.xmpp.transports_nb.NBSOCKS5PROXYsocket instance at 0x98015cc>
>>> into <common.xmpp.client_nb.NonBlockingClient instance at 0x904e08c>
>>> DEBUG: CONNECTproxy start Proxy server contacted, performing
>>> authentification
>>> DEBUG: CONNECTproxy sent
>> that's strange that nothing is sent here. re-reading the code, here
>> connector is suppose dto be sent. It's a base64 encoded string, and then
>> we wait for the answer.
>>> tcpdump shows following traffic on lo (szpak is a hostname):
>> [...]
>>> In the communication with pure Tor there is one more packet PSH,ACK from
>>> Tor, which is confirmed by Gajim and next Gajim sends its request.
>>> I'm not a TCP expert, but do you thing the lack of that one PSH packet
>>> can cause that ACK is not push to Gajim and it waits for ACK forever (or
>>> at least until a timeout)?
>>> I have more detailed dump from Wireshark if someone is interested.
>> Maybe full sent/reveiced chars could help
> I sent a message a few days ago, but it got lost in a moderation 
> process. The problem is probably that Privoxy is only a web proxy, not 
> SOCKS5 proxy and doesn't "understand" Gajim.
> Is it a probable reason in your opinion?

With a Yann's help I was also (apart pure Tor) able to use Prixovy as 
"HTTP Connect" proxy type with Gajim.


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