share/lua/website/metacafe.lua

   1
   2 -- quvi
   3 -- Copyright (C) 2011  Lionel Elie Mamane <lionel@mamane.lu>
   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 local Metacafe = {} -- Utility functions unique to this script.
  24
  25 -- Identify the script.
  26 function ident(self)
  27     package.path = self.script_dir .. '/?.lua'
  28     local C      = require 'quvi/const'
  29     local r      = {}
  30     r.domain     = "metacafe.com"
  31     r.formats    = "default"
  32     r.categories = C.proto_http
  33     local U      = require 'quvi/util'
  34     r.handles    = U.handles(self.page_url, {r.domain},
  35                      {"/watch/%d+/", "/watch/yt-[^/]+/"})
  36     return r
  37 end
  38
  39 -- Query available formats.
  40 function query_formats(self)
  41     if not Metacafe.redirectp(self) then
  42         self.formats = 'default'
  43     end
  44     return self
  45 end
  46
  47 -- Parse media URL.
  48 function parse(self)
  49     self.host_id = "metacafe"
  50
  51     if Metacafe.redirectp(self) then
  52         return self
  53     end
  54
  55     local U    = require 'quvi/util'
  56     local page = Metacafe.fetch_page(self, U)
  57
  58     local _,_,s = page:find('"title":"(.-)"')
  59     self.title  = U.unescape(s or error("no match: media title"))
  60
  61     local _,_,s = page:find('"itemID":"(.-)"')
  62     self.id     = s or error("no match: media id")
  63
  64     local _,_,s = page:find('<link rel="image_src" href="(.-)"')
  65     self.thumbnail_url = s or ''
  66
  67     local _,_,s = page:find('"mediaData":"(.-)"')
  68     local media_data = U.unescape(s or error("no match: media data"))
  69     local _,_,s = media_data:find('"mediaURL":"(.-)"')
  70     self.url    = U.slash_unescape(s or error("no match: media url"))
  71     local _,_,s = media_data:find('"key":"(.-)"')
  72     self.url    = { self.url .. "?__gda__=" .. s or error("no match: gda key") }
  73
  74     return self
  75 end
  76
  77 --
  78 -- Utility functions
  79 --
  80
  81 function Metacafe.redirectp(self)
  82     local _,_,s = self.page_url:find('/watch/yt%-([^/]+)/')
  83     if s then
  84         -- Hand over to youtube.lua
  85         self.redirect_url = 'http://youtube.com/watch?v=' .. s
  86         return true
  87     end
  88     return false
  89 end
  90
  91 function Metacafe.fetch_page(self, U)
  92     self.page_url = Metacafe.normalize(self.page_url)
  93
  94     return quvi.fetch(self.page_url)
  95 end
  96
  97 function Metacafe.normalize(page_url) -- "Normalize" embedded URLs
  98     return page_url
  99 end
 100
 101 -- vim: set ts=4 sw=4 tw=72 expandtab: