blog/How_to_find_a_browser_plugin_supporting_a_given_MIME_type.html

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   6     <title>Petter Reinholdtsen: How to find a browser plugin supporting a given MIME type</title>
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  14  <h1>
  15      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  16
  17  </h1>
  18
  19 </div>
  20
  21
  22     <div class="entry">
  23       <div class="title">How to find a browser plugin supporting a given MIME type</div>
  24       <div class="date">18th January 2013</div>
  25       <div class="body"><p>Some times I try to figure out which Iceweasel browser plugin to
  26 install to get support for a given MIME type.  Thanks to
  27 <a href="https://wiki.ubuntu.com/MozillaTeam/Plugins">specifications
  28 done by Ubuntu</a> and Mozilla, it is possible to do this in Debian.
  29 Unfortunately, not very many packages provide the needed meta
  30 information, Anyway, here is a small script to look up all browser
  31 plugin packages announcing ther MIME support using this specification:</p>
  32
  33 <pre>
  34 #!/usr/bin/python
  35 import sys
  36 import apt
  37 def pkgs_handling_mimetype(mimetype):
  38     cache = apt.Cache()
  39     cache.open(None)
  40     thepkgs = []
  41     for pkg in cache:
  42         version = pkg.candidate
  43         if version is None:
  44             version = pkg.installed
  45         if version is None:
  46             continue
  47         record = version.record
  48         if not record.has_key('Npp-MimeType'):
  49             continue
  50         mime_types = record['Npp-MimeType'].split(',')
  51         for t in mime_types:
  52             t = t.rstrip().strip()
  53             if t == mimetype:
  54                 thepkgs.append(pkg.name)
  55     return thepkgs
  56 mimetype = "audio/ogg"
  57 if 1 < len(sys.argv):
  58     mimetype = sys.argv[1]
  59 print "Browser plugin packages supporting %s:" % mimetype
  60 for pkg in pkgs_handling_mimetype(mimetype):
  61     print "  %s" %pkg
  62 </pre>
  63
  64 <p>It can be used like this to look up a given MIME type:</p>
  65
  66 <pre>
  67 % ./apt-find-browserplug-for-mimetype
  68 Browser plugin packages supporting audio/ogg:
  69   gecko-mediaplayer
  70 % ./apt-find-browserplug-for-mimetype application/x-shockwave-flash
  71 Browser plugin packages supporting application/x-shockwave-flash:
  72   browser-plugin-gnash
  73 %
  74 </pre>
  75
  76 <p>In Ubuntu this mechanism is combined with support in the browser
  77 itself to query for plugins and propose to install the needed
  78 packages.  It would be great if Debian supported such feature too.  Is
  79 anyone working on adding it?</p>
  80
  81 <p><strong>Update 2013-01-18 14:20</strong>: The Debian BTS
  82 request for icweasel support for this feature is
  83 <a href="http://bugs.debian.org/484010">#484010</a> from 2008 (and
  84 <a href="http://bugs.debian.org/698426">#698426</a> from today).  Lack
  85 of manpower and wish for a different design is the reason thus feature
  86 is not yet in iceweasel from Debian.</p>
  87 </div>
  88
  89       <div class="tags">Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.</div>
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