[Pidgin] #2910: NTLM proxy authorization broken

[Pidgin]

#2910: NTLM proxy authorization broken
------------------------+---------------------------------------------------
  Reporter:  thecrux    |       Owner:  datallah                   
      Type:  patch      |      Status:  assigned                   
  Priority:  minor      |   Milestone:  Patches Needing Improvement
 Component:  libpurple  |     Version:  2.1.1                      
Resolution:             |    Keywords:  ntlm                       
   Pending:  0          |  
------------------------+---------------------------------------------------
Changes (by datallah):

  * milestone:  => Patches Needing Improvement

Comment:

 There are two issues here:
  1. (some?) proxy servers don't like multiple `Proxy-Authorization`
 headers
  1. libpurple doesn't support using the current kerberos ticket to
 authenticate to the proxy server.

 I'd like to get the current patch updated to deal with only the second
 issue to avoid complicating the situation.  I'd like the win32-only code
 to be put in a new file in the win32 subdirectory and namespaced
 accordingly to avoid cluttering the core ntlm stuff.

 IRT the first issue, we need to detect what the server supports and only
 send that, a GUI option isn't going to be an acceptable thing to do.
 Presumably most clients aren't sending multiple headers and we probably
 shouldn't either.

-- 
Ticket URL: <http://developer.pidgin.im/ticket/2910#comment:11>
Pidgin <http://pidgin.im>
Pidgin