[Pidgin] #16818: show base64 image

[Pidgin]

#16818: show base64 image
---------------------+--------------------------
 Reporter:  yetist   |      Owner:
     Type:  patch    |     Status:  new
Milestone:           |  Component:  pidgin (gtk)
  Version:  2.10.11  |   Keywords:
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 The current version of pidgin, if receive a chat message, that include
 '''<img/>''', it will show an http link instead, it is not we wanted.

 If we received the image message, there are two different data, one is:
 {{{
 <img src='http://...'/>
 }}}
 the other is:
 {{{
 <img src='data:image/xxx;base64,iVBORw0KGgXVCJiFpFF1UmQ0z...=='/>
 }}}

 In the first way, if to show image, pidgin should visit the url agent to
 get image data.
 In the second way, pidgin have already got the image data, to show the
 image is easy.

 So, I have write a patch to show image, if pidgin got the base64 encoded
 image data.

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Ticket URL: <https://developer.pidgin.im/ticket/16818>
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