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