[Pidgin] #1217: Writing error behing proxy for MSN

[Pidgin]

#1217: Writing error behing proxy for MSN
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 Reporter:  boater     |       Type:  defect
   Status:  new        |   Priority:  minor 
Component:  libpurple  |    Version:  2.0   
 Keywords:             |    Pending:  0     
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 At work I am behind a proxy and after some Adium/GAIM changes last year,
 it works with only some connection errors when sending messages sometimes.
 Now more and more often I cannot connect and receive a "Writing error."
 Usually I can connect if I retry 10-50 times, but it's very hard now to
 make a connection. I thought it was a problem affecting all MSN clients,
 but the official MSN client can connect without a problem.

 Below is the debug output from Pidgin:

 {{{
 account: Connecting to account passport at hotmail.com
 connection: Connecting. gc = 015855E0
 msn: new httpconn (015FCDC8)
 dnsquery: Performing DNS lookup for proxy.work.edu.au
 msn: C: NS 000: VER 1 MSNP9 MSNP8 CVR0
 dnsquery: IP resolved for proxy.work.edu.au
 proxy: Attempting connection to 123.123.123.123
 proxy: Connecting to gateway.messenger.hotmail.com:80 via
 proxy.work.edu.au:8080 using HTTP
 proxy: Connection in progress
 proxy: HTTP proxy connection established
 msn: Connection error from Notification server (messenger.hotmail.com):
 Writing error
 msn: C: NS 000: OUT
 msn: Attempted HTTP write before session is established
 msn: Connection error from Notification server (messenger.hotmail.com):
 Writing error
 msn_session_disconnect: assertion `session->connected' failed
 account: Disconnecting account 0152AB80
 connection: Disconnecting connection 015855E0
 msn: destroy httpconn (015FCDC8)
 connection: Destroying connection 015855E0
 }}}

 I can provide TCP dumps from Pidgin/Adium/official client if needed.

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Ticket URL: <http://developer.pidgin.im/ticket/1217>
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