share/lua/util/content_type.lua

   1
   2 -- quvi
   3 -- Copyright (C) 2010  Toni Gundogdu <legatvs@gmail.com>
   4 --
   5 -- This file is part of quvi <http://quvi.sourceforge.net/>.
   6 --
   7 -- This library is free software; you can redistribute it and/or
   8 -- modify it under the terms of the GNU Lesser General Public
   9 -- License as published by the Free Software Foundation; either
  10 -- version 2.1 of the License, or (at your option) any later version.
  11 --
  12 -- This library is distributed in the hope that it will be useful,
  13 -- but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 -- Lesser General Public License for more details.
  16 --
  17 -- You should have received a copy of the GNU Lesser General Public
  18 -- License along with this library; if not, write to the Free Software
  19 -- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  20 -- 02110-1301  USA
  21 --
  22
  23 -- Parse file suffix (extension) from content-type string.
  24 function suffix_from_contenttype (ctype)
  25
  26     -- Ideally, we'd parse these from /etc/mime-types.
  27     -- In reality, we need a more cross-platform solution.
  28
  29     if (ctype:find ("text/html")) then
  30         error (
  31             'content-type cannot be "' ..ctype.. '" for a video. '
  32             .. 'The rule script for this website is either buggy or incomplete.'
  33         )
  34     end
  35
  36     local _,_,s = ctype:find("/(.-)$")
  37     s = s or error ("no match: content type")
  38     s = s:gsub("^x%-","")
  39
  40     if (s:find("octet")
  41         or s:find("swf")
  42         or s:find("flash")
  43         or s:find("plain"))
  44     then
  45         s = "flv"
  46     end
  47
  48     return s
  49 end
  50
  51 -- vim: set ts=4 sw=4 tw=72 expandtab: