share/media/charlierose.lua

   1 -- libquvi-scripts
   2 -- Copyright (C) 2013  Toni Gundogdu <legatvs@gmail.com>
   3 -- Copyright (C) 2010-2012  quvi project
   4 --
   5 -- This file is part of libquvi-scripts <http://quvi.sourceforge.net/>.
   6 --
   7 -- This program is free software: you can redistribute it and/or
   8 -- modify it under the terms of the GNU Affero General Public
   9 -- License as published by the Free Software Foundation, either
  10 -- version 3 of the License, or (at your option) any later version.
  11 --
  12 -- This program 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
  15 -- GNU Affero General Public License for more details.
  16 --
  17 -- You should have received a copy of the GNU Affero General
  18 -- Public License along with this program.  If not, see
  19 -- <http://www.gnu.org/licenses/>.
  20 --
  21
  22 local CharlieRose = {} -- Utility functions unique to this script.
  23
  24 -- Identify the media script.
  25 function ident(qargs)
  26   return {
  27     can_parse_url = CharlieRose.can_parse_url(qargs),
  28     domains = table.concat({'charlierose.com'}, ',')
  29   }
  30 end
  31
  32 -- Parse media properties.
  33 function parse(qargs)
  34   local p = quvi.http.fetch(qargs.input_url).data
  35
  36   qargs.title = p:match("<title>Charlie Rose%s+-%s+(.-)</title>") or ''
  37
  38   qargs.thumb_url = p:match('rel="image_src" href="(.-)"') or ''
  39
  40   qargs.id = p:match('view%/content%/(.-)"') or ''
  41
  42   qargs.streams = CharlieRose.iter_streams(p)
  43
  44   return qargs
  45 end
  46
  47 --
  48 -- Utility functions
  49 --
  50
  51 function CharlieRose.can_parse_url(qargs)
  52   local U = require 'socket.url'
  53   local t = U.parse(qargs.input_url)
  54   if t and t.scheme and t.scheme:lower():match('^http$')
  55        and t.host   and t.host:lower():match('charlierose%.com$')
  56        and t.path   and t.path:lower():match('^/view/.-/%d+')
  57   then
  58     return true
  59   else
  60     return false
  61   end
  62 end
  63
  64 function CharlieRose.iter_streams(p)
  65   local u = p:match('url":"(.-)"') or error("no match: media stream URL")
  66
  67   local h = p:match('name="video_height" content="(%d+)"') or 0
  68   local w = p:match('name="video_width" content="(%d+)"') or 0
  69
  70   local S = require 'quvi/stream'
  71   local s = S.stream_new(u)
  72
  73   s.video.height = h
  74   s.video.width = w
  75
  76   return {s}
  77 end
  78
  79 -- vim: set ts=2 sw=2 tw=72 expandtab: