[Bugs] #2289 UNSP: sugar freezes when register widget is clicked (if Server is unresponsive)

[Sugar Labs Bugs]

#2289: sugar freezes when register widget is clicked (if Server is unresponsive)
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    Reporter:  lfaraone                   |          Owner:  tomeu                      
        Type:  defect                     |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  sugar                      |        Version:  Unspecified                
    Severity:  Major                      |       Keywords:                             
Distribution:  Ubuntu                     |   Status_field:  Unconfirmed                
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 Adapted from https://launchpad.net/bugs/617813:

 To reproduce the bug follow these steps-
 1. Run sugar emulator.
 2. set the Jabber server to localhost
 3. start "nc -l 8080" in a terminal. (assuming your computer is not
 running services on 8080)
 4. Right click and click on register widget.


 This issue occurs when a Jabber server exists but is frozen. That state is
 reproduced above.

 Patch attached.

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Ticket URL: <http://bugs.sugarlabs.org/ticket/2289>
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