[Pidgin] #11475: Pidgin 2.6.6 proxy unfriendly

[Pidgin]

#11475: Pidgin 2.6.6 proxy unfriendly
----------------------+-----------------------------------------------------
Reporter:  ethnopunk  |        Type:  defect      
  Status:  new        |   Component:  pidgin (gtk)
 Version:  2.6.6      |    Keywords:  proxy       
----------------------+-----------------------------------------------------
 There I was thinking it was my proxy service on the blink since I haven’t
 paid my bill for months. Turns out the latest Pidgin update is decidedly
 proxy unfriendly:

 Pidgin 2.6.4 Changes Proxy Behavior Filed under: Miscellaneous, Tools —
 Julian @ 10:11 pm I use Pidgin for all of my IM functions including
 Facebook and Skype and I love the application. I especially like the OTR
 plug-in that allows me to have “private” conversations with my buddies
 regardless of the underlying protocol being used. I also use the Portable
 Apps version so that I can “take” my contacts, history, and other settings
 with me. I recently updated to the 2.6.4 version and after the update
 completed and I started Pidgin, I was unable to connect to any of my
 accounts. I use a remote HTTP proxy server to relay my IM connection so
 that restrictive corporate firewalls don’t block my IM accounts. I opened
 the debug window and after seeing the “Access Denied” message, I thought
 that it might be the proxy server itself. After verifying that nothing in
 the server configuration has changed recently, I started to look at other
 possibilities. I was able to configure Firefox to use the proxy server
 successfully, so I started to look at the Pidgin client as the culprit… I
 did a quick Google search and I found the reason. In the change-log for
 version 2.6.4 is a line in the libpurple component:

 * Don’t send Proxy-Authorization headers to HTTP proxy servers until we’ve
 received a “407 Proxy Authentication Required” response from the server.
 (thecrux)

 For some reason, the Squid Proxy Server that I use does not send this 407
 response back and Pidgin never sends the credentials. So of course the
 Proxy Server replies with Access Denied since it does not allow
 unauthenticated users to use it. I’m sure that the developers fix the
 problem for a good reason, but it is still frustrating that existing
 working behavior in one version stops working in the next version. Until I
 can upgrade the Squid server or figure out how to make it send the 407
 response, I’ll stay at version 2.6.3…

 See:

 https://julianscorner.com/

-- 
Ticket URL: <http://developer.pidgin.im/ticket/11475>
Pidgin <http://pidgin.im>
Pidgin