Re: [jabber.el] How to use webproxy to connect jabber.el with xmpp server

[Valery V. V. <val...@gm...>]

> Django <dj...@1a...> wrote:
>
>> I'd like to give jabber.el a try in my office environment.
>>
>> Unfortunately I can't manage, to get the client connected to my account
>> at the jabber server, as I'm sitting behind a web proxy.
>>
>> My jabber server provides me with an access via port 80, which I'd use,
>> as port 5223 is blocked by the firewall anyway. However, direct
>> connection to the jabber server doesn't work.
>>
>> I tried this configuration with JabberEl 0.8.0 (private information XXXed):
>>
>> (custom-set-variables
>> '(jabber-account-list (quote (("django@XXX" (:password . "XXX")
>> (:network-server . "jabberd.XXX.de") (:port . 80) (:connection-type
>> . network))))))
>>
>> Can't get connection this way. It hangs.
>>
>> With my psi client I can specify a connection proxy of type HTTP
>> "Connect". That works fine.
>>
>> Is there some similar setting to use with JabberEl? Any ideas?


Magnus Henoch <mag...@gm...> wrote:

> I'm afraid that's currently impossible, at least with only Emacs.
>
> From your Psi settings I deduce that this is not a straight XMPP connection
> on port 80, but you're using the HTTP CONNECT method. Emacs currently
> doesn't support doing that for arbitrary TCP connections. (I think I filed a
> request for that in the emacs bug tracker, though)
>
> You may be able to use some other program to proxy the connection for you,
> as is often used for SOCKS proxies. I don't know of any such program for
> HTTP proxies, though...


I use corkscrew [*] for this purpose. It lets me connect emacs-jabber
to GTalk through a corporate proxy server with HTTP authentication.

  [*] http://www.agroman.net/corkscrew/

This line of inetd.conf creates "listening" socket at
localhost:12345. Every connection to this port gets proxied through
proxyserver:3128 to talk.google.com:443.

    $ grep -B1 talk\.google /etc/inetd.conf
    #:OTHER: Other services
    12345   stream  tcp     nowait  vvv     /usr/bin/corkscrew
/usr/bin/corkscrew proxyserver 3128 talk.google.com 443
/home/vvv/.proxy-auth

(Note, that grep prints two lines. Those may be wrapped by a mail agent.)

An authentication file:

    $ cat /home/vvv/.proxy-auth
    username:password
    $ ls -l /home/vvv/.proxy-auth
    -rw------- 1 vvv vvv 20 Jul 11  2008 /home/vvv/.proxy-auth

And the corresponding ~/.emacs settings:

    $ sed -n '/jabber-account-list/,/^$/ p' /home/vvv/.emacs
         (setq jabber-account-list
               (list
                (append '("use...@gm..." (:connection-type . ssl))
                        (if (work-lan-p)
                            '((:network-server . "127.0.0.1") (:port . 12345))
                          '((:network-server . "talk.google.com"))))))

Hope this helps.

-- 
vvv