YoutubeIE: reuse instances of InfoExtractors (closes #998)
[youtube-dl] / youtube_dl / extractor / arte.py
1 import re
2 import json
3 import xml.etree.ElementTree
4
5 from .common import InfoExtractor
6 from ..utils import (
7     ExtractorError,
8     unified_strdate,
9 )
10
11 class ArteTvIE(InfoExtractor):
12     """
13     There are two sources of video in arte.tv: videos.arte.tv and
14     www.arte.tv/guide, the extraction process is different for each one.
15     The videos expire in 7 days, so we can't add tests.
16     """
17     _EMISSION_URL = r'(?:http://)?www\.arte.tv/guide/(?P<lang>fr|de)/(?:(?:sendungen|emissions)/)?(?P<id>.*?)/(?P<name>.*?)(\?.*)?'
18     _VIDEOS_URL = r'(?:http://)?videos.arte.tv/(?P<lang>fr|de)/.*-(?P<id>.*?).html'
19     _LIVE_URL = r'index-[0-9]+\.html$'
20
21     IE_NAME = u'arte.tv'
22
23     @classmethod
24     def suitable(cls, url):
25         return any(re.match(regex, url) for regex in (cls._EMISSION_URL, cls._VIDEOS_URL))
26
27     # TODO implement Live Stream
28     # from ..utils import compat_urllib_parse
29     # def extractLiveStream(self, url):
30     #     video_lang = url.split('/')[-4]
31     #     info = self.grep_webpage(
32     #         url,
33     #         r'src="(.*?/videothek_js.*?\.js)',
34     #         0,
35     #         [
36     #             (1, 'url', u'Invalid URL: %s' % url)
37     #         ]
38     #     )
39     #     http_host = url.split('/')[2]
40     #     next_url = 'http://%s%s' % (http_host, compat_urllib_parse.unquote(info.get('url')))
41     #     info = self.grep_webpage(
42     #         next_url,
43     #         r'(s_artestras_scst_geoFRDE_' + video_lang + '.*?)\'.*?' +
44     #             '(http://.*?\.swf).*?' +
45     #             '(rtmp://.*?)\'',
46     #         re.DOTALL,
47     #         [
48     #             (1, 'path',   u'could not extract video path: %s' % url),
49     #             (2, 'player', u'could not extract video player: %s' % url),
50     #             (3, 'url',    u'could not extract video url: %s' % url)
51     #         ]
52     #     )
53     #     video_url = u'%s/%s' % (info.get('url'), info.get('path'))
54
55     def _real_extract(self, url):
56         mobj = re.match(self._EMISSION_URL, url)
57         if mobj is not None:
58             lang = mobj.group('lang')
59             # This is not a real id, it can be for example AJT for the news
60             # http://www.arte.tv/guide/fr/emissions/AJT/arte-journal
61             video_id = mobj.group('id')
62             return self._extract_emission(url, video_id, lang)
63
64         mobj = re.match(self._VIDEOS_URL, url)
65         if mobj is not None:
66             id = mobj.group('id')
67             lang = mobj.group('lang')
68             return self._extract_video(url, id, lang)
69
70         if re.search(self._LIVE_URL, video_id) is not None:
71             raise ExtractorError(u'Arte live streams are not yet supported, sorry')
72             # self.extractLiveStream(url)
73             # return
74
75     def _extract_emission(self, url, video_id, lang):
76         """Extract from www.arte.tv/guide"""
77         webpage = self._download_webpage(url, video_id)
78         json_url = self._html_search_regex(r'arte_vp_url="(.*?)"', webpage, 'json url')
79
80         json_info = self._download_webpage(json_url, video_id, 'Downloading info json')
81         self.report_extraction(video_id)
82         info = json.loads(json_info)
83         player_info = info['videoJsonPlayer']
84
85         info_dict = {'id': player_info['VID'],
86                      'title': player_info['VTI'],
87                      'description': player_info['VDE'],
88                      'upload_date': unified_strdate(player_info['VDA'].split(' ')[0]),
89                      'thumbnail': player_info['programImage'],
90                      'ext': 'flv',
91                      }
92
93         formats = player_info['VSR'].values()
94         def _match_lang(f):
95             # Return true if that format is in the language of the url
96             if lang == 'fr':
97                 l = 'F'
98             elif lang == 'de':
99                 l = 'A'
100             regexes = [r'VO?%s' % l, r'V%s-ST.' % l]
101             return any(re.match(r, f['versionCode']) for r in regexes)
102         # Some formats may not be in the same language as the url
103         formats = filter(_match_lang, formats)
104         # We order the formats by quality
105         formats = sorted(formats, key=lambda f: int(f['height']))
106         # Pick the best quality
107         format_info = formats[-1]
108         if format_info['mediaType'] == u'rtmp':
109             info_dict['url'] = format_info['streamer']
110             info_dict['play_path'] = 'mp4:' + format_info['url']
111         else:
112             info_dict['url'] = format_info['url']
113
114         return info_dict
115
116     def _extract_video(self, url, video_id, lang):
117         """Extract from videos.arte.tv"""
118         ref_xml_url = url.replace('/videos/', '/do_delegate/videos/')
119         ref_xml_url = ref_xml_url.replace('.html', ',view,asPlayerXml.xml')
120         ref_xml = self._download_webpage(ref_xml_url, video_id, note=u'Downloading metadata')
121         ref_xml_doc = xml.etree.ElementTree.fromstring(ref_xml)
122         config_node = ref_xml_doc.find('.//video[@lang="%s"]' % lang)
123         config_xml_url = config_node.attrib['ref']
124         config_xml = self._download_webpage(config_xml_url, video_id, note=u'Downloading configuration')
125
126         video_urls = list(re.finditer(r'<url quality="(?P<quality>.*?)">(?P<url>.*?)</url>', config_xml))
127         def _key(m):
128             quality = m.group('quality')
129             if quality == 'hd':
130                 return 2
131             else:
132                 return 1
133         # We pick the best quality
134         video_urls = sorted(video_urls, key=_key)
135         video_url = list(video_urls)[-1].group('url')
136         
137         title = self._html_search_regex(r'<name>(.*?)</name>', config_xml, 'title')
138         thumbnail = self._html_search_regex(r'<firstThumbnailUrl>(.*?)</firstThumbnailUrl>',
139                                             config_xml, 'thumbnail')
140         return {'id': video_id,
141                 'title': title,
142                 'thumbnail': thumbnail,
143                 'url': video_url,
144                 'ext': 'flv',
145                 }