[Pidgin] #3730: Implementation for file-sending through proxies

[Pidgin]

#3730: Implementation for file-sending through proxies
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  Reporter:  galt   |       Owner:  nwalp              
      Type:  patch  |      Status:  new                
  Priority:  minor  |   Milestone:                     
 Component:  XMPP   |     Version:  2.2.2              
Resolution:         |    Keywords:  file,transfer,proxy
   Pending:  0      |  
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Comment (by galt):

 Thanks for the feedback! I haven't went over this much since I got it to
 workForMe, but I will definitely look into this over the weekend, right
 after my midterms.

 Also, I have a question about libpurple callbacks. Can a callback be
 called while another one is still running? Or are they queued? I was
 wondering about that when I realized that by the standard, if the other
 side decides to connect directly, they would both connect and send the
 streamhost-used, hence triggering 2 different callbacks.

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Ticket URL: <http://developer.pidgin.im/ticket/3730#comment:3>
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