GNU bug report logs - #18792
multipart/related with "cid:" image not shown

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: 18792 <at> debbugs.gnu.org
Subject: bug#18792: multipart/related with "cid:" image not shown
Date: Wed, 22 Oct 2014 10:01:21 -0400

Package: Emacs,gnus
Version: 24.4.51


[ This also affects trunk, and has probably been going on for a while
  now.  ]

I regularly receive emails that contain "a tiny bit of HTML text around
a picture".  Often these have the following MIME structure:

    multipart/related
      multipart/alternative
        text/plain
        text/html
      image/jpeg

where the HTML refers to the image via a "cid:" URL.

Here's the problem: Gnus seems to only show me the first element of the
multipart/related and does not let me get access to the image.

More specifically, I get a display such as:

   From: "Toto" <toto <at> gnu.ca>
   Subject: blabla
   To: Stefan Monnier <monnier <at> iro.umontreal.ca>
   Date: Wed, 22 Oct 2014 12:59:18 +0000 (47 minutes, 13 seconds ago)
   
   1.  (*) text/plain          ( ) text/html           
   
   Mira esto
   [cid:ED58E6891D72E141A6C22D4BAFEF436F <at> gnu.ca]

Notice the lack of any button to view the image/jpeg subpart.
The same problem shows up if I select the text/html:

   From: "Toto" <toto <at> gnu.ca>
   Subject: blabla
   To: Stefan Monnier <monnier <at> iro.umontreal.ca>
   Date: Wed, 22 Oct 2014 12:59:18 +0000 (47 minutes, 13 seconds ago)
   
   1.  ( ) text/plain          (*) text/html           
   
       Mira esto
       
   *

It looks marginally different because it's rendered by shr.el, but the
problem remains that I have no access to the attached image.


        Stefan

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