share/lua/util/content_type.lua

   1 -- libquvi-scripts
   2 -- Copyright (C) 2012  Toni Gundogdu <legatvs@gmail.com>
   3 --
   4 -- This file is part of libquvi-scripts <http://quvi.sourceforge.net/>.
   5 --
   6 -- This library is free software; you can redistribute it and/or
   7 -- modify it under the terms of the GNU Lesser General Public
   8 -- License as published by the Free Software Foundation; either
   9 -- version 2.1 of the License, or (at your option) any later version.
  10 --
  11 -- This library is distributed in the hope that it will be useful,
  12 -- but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 -- Lesser General Public License for more details.
  15 --
  16 -- You should have received a copy of the GNU Lesser General Public
  17 -- License along with this library; if not, write to the Free Software
  18 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 -- 02110-1301  USA
  20 --
  21
  22 function suffix_from_contenttype(c_type)
  23   -- Hardcoded.
  24   if c_type:match("audio/mpeg") then return "mp3" end
  25
  26   -- Use the media subtype as file extension whenever possible.
  27   -- Return 'flv' if nothing is matched.
  28   local mst = c_type:match("/(.-)$") or "flv"
  29   mst = mst:gsub("^x%-","")
  30
  31   -- Some servers return the following content-types (instead
  32   -- of "video/x-flv") for flash videos:
  33   --   "application/x-shockwave-flash"
  34   --   "text/plain"
  35   for _,v in pairs({"octet", "shockwave","plain"}) do
  36     if mst:match(v) then return "flv" end
  37   end
  38
  39   return mst
  40 end
  41
  42 --[[
  43 local a = {
  44   'video/x-flv',
  45   'video/flv',
  46   'audio/mpeg',
  47   'video/mpeg',
  48   'video/webm',
  49   'audio/mp4',
  50   'video/mp4',
  51   'application/octet-stream',
  52   'application/x-shockwave-flash',
  53   'text/plain',
  54   'invalid content-type',
  55 }
  56 for _,v in pairs(a) do
  57   print(v,to_file_ext({utilscript_dir='.'},v))
  58 end
  59 ]]--
  60
  61 -- vim: set ts=2 sw=2 tw=72 expandtab: