share/lua/website/academicearth.lua

   1
   2 -- quvi
   3 -- Copyright (C) 2010,2011  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 -- academicearth.org hosts videos at either blip.tv or youtube.com
  24 -- This webscript uses the "redirect_url" to point to the source.
  25
  26 local AcademicEarth = {} -- Utility functions specific to this script
  27
  28 -- Identify the script.
  29 function ident(self)
  30     package.path = self.script_dir .. '/?.lua'
  31     local C      = require 'quvi/const'
  32     local r      = {}
  33     r.domain     = "academicearth.org"
  34     r.formats    = "default"
  35     r.categories = C.proto_http
  36     local U      = require 'quvi/util'
  37     r.handles    = U.handles(self.page_url, {r.domain}, {"/lectures/"})
  38     return r
  39 end
  40
  41 -- Query available formats.
  42 function query_formats(self)
  43     return AcademicEarth.get_redirect_url(self)
  44 end
  45
  46 -- Parse media URL.
  47 function parse(self)
  48     return AcademicEarth.get_redirect_url(self)
  49 end
  50
  51 --
  52 -- Utility functions
  53 --
  54
  55 function AcademicEarth.get_redirect_url(self)
  56     local page = quvi.fetch(self.page_url)
  57
  58     local _,_,s = page:find('ytID = "(.-)"')
  59     if s then
  60         self.redirect_url = 'http://youtube.com/e/' .. s
  61     else
  62         local _,_,s = page:find('embed src="(.-)"') -- blip
  63         if s then
  64             self.redirect_url = s
  65         else
  66             error('no match: blip or youtube pattern')
  67         end
  68     end
  69     return self
  70 end
  71
  72 -- vim: set ts=4 sw=4 tw=72 expandtab: