share/playlist/soundcloud.lua

   1 -- libquvi-scripts
   2 -- Copyright (C) 2012-2013  Toni Gundogdu <legatvs@gmail.com>
   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 Soundcloud = {} -- Utility functions unique to this script
  22
  23 -- Identify the playlist script.
  24 function ident(qargs)
  25   return {
  26     domains = table.concat({'soundcloud.com'}, ','),
  27     can_parse_url = Soundcloud.can_parse_url(qargs)
  28   }
  29 end
  30
  31 -- Parse playlist properties.
  32 function parse(qargs)
  33
  34   qargs.id, s = qargs.input_url:match('/([%w-_]+)/sets/([%w-_]+)/')
  35   if qargs.id and s then
  36     qargs.id = qargs.id .."_".. s
  37   end
  38
  39   local p = quvi.http.fetch(qargs.input_url).data
  40
  41   qargs.thumb_url = p:match('.+content="(.-)"%s+property="og:image"') or ''
  42   qargs.title = p:match('.+content="(.-)"%s+property="og:title"') or ''
  43
  44   local m = 'class="info">.-href="(.-)"'
  45          .. '.-class="set%-track%-title".->(.-)<'
  46          .. '.-class="time">(.-)<'
  47
  48   qargs.media = {}
  49
  50   for u,t,d in p:gmatch(m) do
  51     local m,s = d:match('(%d+)%.(%d+)')
  52     local r = {
  53       duration_ms = ((tonumber(m or '0')*60) + tonumber(s or '0')) *1000,
  54       url = "http://soundcloud.com" ..u,
  55       title = t
  56     }
  57     table.insert(qargs.media, r)
  58   end
  59
  60   return qargs
  61 end
  62
  63 --
  64 -- Utility functions
  65 --
  66
  67 function Soundcloud.can_parse_url(qargs)
  68   local U = require 'socket.url'
  69   local t = U.parse(qargs.input_url)
  70   if t and t.scheme and t.scheme:lower():match('^https?$')
  71        and t.host   and t.host:lower():match('soundcloud%.com$')
  72        and t.path   and t.path:lower():match('^/.-/sets/[%w-_]+/$')
  73   then
  74     return true
  75   else
  76     return false
  77   end
  78 end
  79
  80 -- vim: set ts=2 sw=2 tw=72 expandtab: