share/media/ina.lua

   1 -- libquvi-scripts
   2 -- Copyright (C) 2013  Mohamed El Morabity <melmorabity@fedoraproject.org>
   3 --
   4 -- This file is part of libquvi-scripts <http://quvi.sourceforge.net/>.
   5 --
   6 -- This program is free software: you can redistribute it and/or
   7 -- modify it under the terms of the GNU Affero General Public
   8 -- License as published by the Free Software Foundation, either
   9 -- version 3 of the License, or (at your option) any later version.
  10 --
  11 -- This program 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
  14 -- GNU Affero General Public License for more details.
  15 --
  16 -- You should have received a copy of the GNU Affero General
  17 -- Public License along with this program.  If not, see
  18 -- <http://www.gnu.org/licenses/>.
  19 --
  20
  21 local Ina = {} -- Utility functions unique to this script
  22
  23 -- Identify the media script.
  24 function ident(qargs)
  25   return {
  26     can_parse_url = Ina.can_parse_url(qargs),
  27     domains = table.concat({'ina.fr'}, ',')
  28   }
  29 end
  30
  31 -- Parse the media properties.
  32 function parse(qargs)
  33   -- Make mandatory: needed to fetch the video data XML.
  34   qargs.id = qargs.input_url:match('/video/(%w+)')
  35                or qargs.input_url:match('/audio/(%w+)')
  36                or error('no match: media ID')
  37
  38   -- Fetch the video data XML
  39   local u = string.format('http://player.ina.fr/notices/%s.mrss?site=visio',
  40               qargs.id)
  41   local c = quvi.http.fetch(u).data
  42   local P = require 'lxp.lom'
  43   local x = P.parse(c)
  44
  45   qargs.streams = Ina.iter_streams(x)
  46
  47   qargs.title = qargs.streams[1].nostd.title
  48
  49   qargs.thumb_url = qargs.streams[1].nostd.thumb_url
  50
  51   qargs.duration_ms = qargs.streams[1].nostd.duration_ms
  52
  53   return qargs
  54 end
  55
  56 --
  57 -- Utility functions
  58 --
  59
  60 function Ina.can_parse_url(qargs)
  61   local U = require 'socket.url'
  62   local t = U.parse(qargs.input_url)
  63   if t and t.scheme and t.scheme:lower():match('^https?$')
  64        and t.host   and t.host:lower():match('ina%.fr$')
  65        and t.path   and (t.path:lower():match('^/video/%w+')
  66                          or t.path:lower():match('^/audio/%w+'))
  67   then
  68     return true
  69   else
  70     return false
  71   end
  72 end
  73
  74 function Ina.iter_streams(x)
  75   local S = require 'quvi/stream'
  76   local L = require 'quvi/lxph'
  77
  78   local c = L.find_first_tag(x, 'channel')
  79   local m = L.find_first_tag(L.find_first_tag(c, 'item'),
  80               'media:content')
  81   local t = L.find_first_tag(m, 'media:thumbnail')
  82
  83   local u = m.attr.url or error('no match: media stream URL')
  84
  85   local s = S.stream_new(u)
  86   s.nostd = {
  87     title = L.find_first_tag(c, 'title')[1] or '',
  88     thumb_url = t.attr.url,
  89     duration_ms = tonumber(m.attr.duration) * 1000
  90   }
  91
  92   return {s}
  93 end
  94
  95 -- vim: set ts=2 sw=2 tw=72 expandtab: