_ Git - youtube-dl/blob - youtube_dl/extractor/mtv.py

   1 import re
   2 import xml.etree.ElementTree
   3
   4 from .common import InfoExtractor
   5 from ..utils import (
   6     compat_urllib_parse,
   7     ExtractorError,
   8     fix_xml_ampersands,
   9 )
  10
  11 def _media_xml_tag(tag):
  12     return '{http://search.yahoo.com/mrss/}%s' % tag
  13
  14
  15 class MTVServicesInfoExtractor(InfoExtractor):
  16     @staticmethod
  17     def _id_from_uri(uri):
  18         return uri.split(':')[-1]
  19
  20     # This was originally implemented for ComedyCentral, but it also works here
  21     @staticmethod
  22     def _transform_rtmp_url(rtmp_video_url):
  23         m = re.match(r'^rtmpe?://.*?/(?P<finalid>gsp\..+?/.*)$', rtmp_video_url)
  24         if not m:
  25             return rtmp_video_url
  26         base = 'http://mtvnmobile.vo.llnwd.net/kip0/_pxn=1+_pxI0=Ripod-h264+_pxL0=undefined+_pxM0=+_pxK=18639+_pxE=mp4/44620/mtvnorigin/'
  27         return base + m.group('finalid')
  28
  29     def _get_thumbnail_url(self, uri, itemdoc):
  30         search_path = '%s/%s' % (_media_xml_tag('group'), _media_xml_tag('thumbnail'))
  31         thumb_node = itemdoc.find(search_path)
  32         if thumb_node is None:
  33             return None
  34         else:
  35             return thumb_node.attrib['url']
  36
  37     def _extract_video_formats(self, metadataXml):
  38         if '/error_country_block.swf' in metadataXml:
  39             raise ExtractorError(u'This video is not available from your country.', expected=True)
  40         mdoc = xml.etree.ElementTree.fromstring(metadataXml.encode('utf-8'))
  41
  42         formats = []
  43         for rendition in mdoc.findall('.//rendition'):
  44             try:
  45                 _, _, ext = rendition.attrib['type'].partition('/')
  46                 rtmp_video_url = rendition.find('./src').text
  47                 formats.append({'ext': ext,
  48                                 'url': self._transform_rtmp_url(rtmp_video_url),
  49                                 'format_id': rendition.get('bitrate'),
  50                                 'width': int(rendition.get('width')),
  51                                 'height': int(rendition.get('height')),
  52                                 })
  53             except (KeyError, TypeError):
  54                 raise ExtractorError('Invalid rendition field.')
  55         return formats
  56
  57     def _get_video_info(self, itemdoc):
  58         uri = itemdoc.find('guid').text
  59         video_id = self._id_from_uri(uri)
  60         self.report_extraction(video_id)
  61         mediagen_url = itemdoc.find('%s/%s' % (_media_xml_tag('group'), _media_xml_tag('content'))).attrib['url']
  62         # Remove the templates, like &device={device}
  63         mediagen_url = re.sub(r'&[^=]*?={.*?}(?=(&|$))', u'', mediagen_url)
  64         if 'acceptMethods' not in mediagen_url:
  65             mediagen_url += '&acceptMethods=fms'
  66         mediagen_page = self._download_webpage(mediagen_url, video_id,
  67                                                u'Downloading video urls')
  68
  69         description_node = itemdoc.find('description')
  70         if description_node is not None:
  71             description = description_node.text.strip()
  72         else:
  73             description = None
  74
  75         return {
  76             'title': itemdoc.find('title').text,
  77             'formats': self._extract_video_formats(mediagen_page),
  78             'id': video_id,
  79             'thumbnail': self._get_thumbnail_url(uri, itemdoc),
  80             'description': description,
  81         }
  82
  83     def _get_videos_info(self, uri):
  84         video_id = self._id_from_uri(uri)
  85         data = compat_urllib_parse.urlencode({'uri': uri})
  86
  87         idoc = self._download_xml(
  88             self._FEED_URL + '?' + data, video_id,
  89             u'Downloading info', transform_source=fix_xml_ampersands)
  90         return [self._get_video_info(item) for item in idoc.findall('.//item')]
  91
  92
  93 class MTVIE(MTVServicesInfoExtractor):
  94     _VALID_URL = r'''(?x)^https?://
  95         (?:(?:www\.)?mtv\.com/videos/.+?/(?P<videoid>[0-9]+)/[^/]+$|
  96            m\.mtv\.com/videos/video\.rbml\?.*?id=(?P<mgid>[^&]+))'''
  97
  98     _FEED_URL = 'http://www.mtv.com/player/embed/AS3/rss/'
  99
 100     _TESTS = [
 101         {
 102             u'url': u'http://www.mtv.com/videos/misc/853555/ours-vh1-storytellers.jhtml',
 103             u'file': u'853555.mp4',
 104             u'md5': u'850f3f143316b1e71fa56a4edfd6e0f8',
 105             u'info_dict': {
 106                 u'title': u'Taylor Swift - "Ours (VH1 Storytellers)"',
 107                 u'description': u'Album: Taylor Swift performs "Ours" for VH1 Storytellers at Harvey Mudd College.',
 108             },
 109         },
 110         {
 111             u'add_ie': ['Vevo'],
 112             u'url': u'http://www.mtv.com/videos/taylor-swift/916187/everything-has-changed-ft-ed-sheeran.jhtml',
 113             u'file': u'USCJY1331283.mp4',
 114             u'md5': u'73b4e7fcadd88929292fe52c3ced8caf',
 115             u'info_dict': {
 116                 u'title': u'Everything Has Changed',
 117                 u'upload_date': u'20130606',
 118                 u'uploader': u'Taylor Swift',
 119             },
 120             u'skip': u'VEVO is only available in some countries',
 121         },
 122     ]
 123
 124     def _get_thumbnail_url(self, uri, itemdoc):
 125         return 'http://mtv.mtvnimages.com/uri/' + uri
 126
 127     def _real_extract(self, url):
 128         mobj = re.match(self._VALID_URL, url)
 129         video_id = mobj.group('videoid')
 130         uri = mobj.groupdict().get('mgid')
 131         if uri is None:
 132             webpage = self._download_webpage(url, video_id)
 133
 134             # Some videos come from Vevo.com
 135             m_vevo = re.search(r'isVevoVideo = true;.*?vevoVideoId = "(.*?)";',
 136                                webpage, re.DOTALL)
 137             if m_vevo:
 138                 vevo_id = m_vevo.group(1);
 139                 self.to_screen(u'Vevo video detected: %s' % vevo_id)
 140                 return self.url_result('vevo:%s' % vevo_id, ie='Vevo')
 141
 142             uri = self._html_search_regex(r'/uri/(.*?)\?', webpage, u'uri')
 143         return self._get_videos_info(uri)