src/gpodder/resolver.py

   1 # -*- coding: utf-8 -*-
   2 #
   3 # gPodder - A media aggregator and podcast client
   4 # Copyright (c) 2005-2008 Thomas Perl and the gPodder Team
   5 #
   6 # gPodder is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # gPodder 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 General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 #
  19 #  resolver.py -- YouTube and related magic
  20 #  Justin Forest <justin.forest@gmail.com> 2008-10-13
  21 #
  22 # TODO:
  23 #
  24 #   * Channel covers.
  25 #   * Support for Vimeo, maybe blip.tv and others.
  26
  27 import re
  28 import urllib2
  29 from gpodder.liblogger import log
  30 from gpodder.util import proxy_request
  31
  32 rr = {}
  33
  34 def get_real_download_url(url, proxy=None):
  35     if 'youtube-episode' not in rr:
  36         rr['youtube-episode'] = re.compile('http://(?:[a-z]+\.)?youtube\.com/v/.*\.swf', re.IGNORECASE)
  37
  38     if rr['youtube-episode'].match(url):
  39         req = proxy_request(url, proxy)
  40
  41         if 'location' in req.msg:
  42             id, tag = (None, None)
  43
  44             for part in req.msg['location'].split('&'):
  45                 if part.startswith('video_id='):
  46                     id = part[9:]
  47                 elif part.startswith('t='):
  48                     tag = part[2:]
  49
  50             if id is not None and tag is not None:
  51                 next = 'http://www.youtube.com/get_video?video_id='+ id +'&t='+ tag +'&fmt=18'
  52                 log('YouTube link resolved: %s => %s', url, next)
  53                 return next
  54
  55     return url
  56
  57 def get_real_channel_url(url):
  58     r = re.compile('http://(?:[a-z]+\.)?youtube\.com/user/([a-z0-9]+)', re.IGNORECASE)
  59     m = r.match(url)
  60
  61     if m is not None:
  62         next = 'http://www.youtube.com/rss/user/'+ m.group(1) +'/videos.rss'
  63         log('YouTube link resolved: %s => %s', url, next)
  64         return next
  65
  66     r = re.compile('http://(?:[a-z]+\.)?youtube\.com/profile?user=([a-z0-9]+)', re.IGNORECASE)
  67     m = r.match(url)
  68
  69     if m is not None:
  70         next = 'http://www.youtube.com/rss/user/'+ m.group(1) +'/videos.rss'
  71         log('YouTube link resolved: %s => %s', url, next)
  72         return next
  73
  74     return url
  75
  76 def get_real_cover(url):
  77     log('Cover: %s', url)
  78
  79     r = re.compile('http://www\.youtube\.com/rss/user/([a-z0-9]+)/videos\.rss', re.IGNORECASE)
  80     m = r.match(url)
  81
  82     if m is not None:
  83         data = urllib2.urlopen('http://www.youtube.com/user/'+ m.group(1)).read()
  84         data = data[data.find('id="user-profile-image"'):]
  85         data = data[data.find('src="') + 5:]
  86
  87         next = data[:data.find('"')]
  88
  89         if next.strip() == '':
  90             return None
  91
  92         log('YouTube userpic for %s is: %s', url, next)
  93         return next
  94
  95     return None