[subtitles] Added tests to check correct behavior when no subtitles are
[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     find_xpath_attr,
9     unified_strdate,
10 )
11
12 class ArteTvIE(InfoExtractor):
13     """
14     There are two sources of video in arte.tv: videos.arte.tv and
15     www.arte.tv/guide, the extraction process is different for each one.
16     The videos expire in 7 days, so we can't add tests.
17     """
18     _EMISSION_URL = r'(?:http://)?www\.arte.tv/guide/(?P<lang>fr|de)/(?:(?:sendungen|emissions)/)?(?P<id>.*?)/(?P<name>.*?)(\?.*)?'
19     _VIDEOS_URL = r'(?:http://)?videos.arte.tv/(?P<lang>fr|de)/.*-(?P<id>.*?).html'
20     _LIVE_URL = r'index-[0-9]+\.html$'
21
22     IE_NAME = u'arte.tv'
23
24     @classmethod
25     def suitable(cls, url):
26         return any(re.match(regex, url) for regex in (cls._EMISSION_URL, cls._VIDEOS_URL))
27
28     # TODO implement Live Stream
29     # from ..utils import compat_urllib_parse
30     # def extractLiveStream(self, url):
31     #     video_lang = url.split('/')[-4]
32     #     info = self.grep_webpage(
33     #         url,
34     #         r'src="(.*?/videothek_js.*?\.js)',
35     #         0,
36     #         [
37     #             (1, 'url', u'Invalid URL: %s' % url)
38     #         ]
39     #     )
40     #     http_host = url.split('/')[2]
41     #     next_url = 'http://%s%s' % (http_host, compat_urllib_parse.unquote(info.get('url')))
42     #     info = self.grep_webpage(
43     #         next_url,
44     #         r'(s_artestras_scst_geoFRDE_' + video_lang + '.*?)\'.*?' +
45     #             '(http://.*?\.swf).*?' +
46     #             '(rtmp://.*?)\'',
47     #         re.DOTALL,
48     #         [
49     #             (1, 'path',   u'could not extract video path: %s' % url),
50     #             (2, 'player', u'could not extract video player: %s' % url),
51     #             (3, 'url',    u'could not extract video url: %s' % url)
52     #         ]
53     #     )
54     #     video_url = u'%s/%s' % (info.get('url'), info.get('path'))
55
56     def _real_extract(self, url):
57         mobj = re.match(self._EMISSION_URL, url)
58         if mobj is not None:
59             lang = mobj.group('lang')
60             # This is not a real id, it can be for example AJT for the news
61             # http://www.arte.tv/guide/fr/emissions/AJT/arte-journal
62             video_id = mobj.group('id')
63             return self._extract_emission(url, video_id, lang)
64
65         mobj = re.match(self._VIDEOS_URL, url)
66         if mobj is not None:
67             id = mobj.group('id')
68             lang = mobj.group('lang')
69             return self._extract_video(url, id, lang)
70
71         if re.search(self._LIVE_URL, video_id) is not None:
72             raise ExtractorError(u'Arte live streams are not yet supported, sorry')
73             # self.extractLiveStream(url)
74             # return
75
76     def _extract_emission(self, url, video_id, lang):
77         """Extract from www.arte.tv/guide"""
78         webpage = self._download_webpage(url, video_id)
79         json_url = self._html_search_regex(r'arte_vp_url="(.*?)"', webpage, 'json url')
80
81         json_info = self._download_webpage(json_url, video_id, 'Downloading info json')
82         self.report_extraction(video_id)
83         info = json.loads(json_info)
84         player_info = info['videoJsonPlayer']
85
86         info_dict = {'id': player_info['VID'],
87                      'title': player_info['VTI'],
88                      'description': player_info['VDE'],
89                      'upload_date': unified_strdate(player_info['VDA'].split(' ')[0]),
90                      'thumbnail': player_info['programImage'],
91                      'ext': 'flv',
92                      }
93
94         formats = player_info['VSR'].values()
95         def _match_lang(f):
96             # Return true if that format is in the language of the url
97             if lang == 'fr':
98                 l = 'F'
99             elif lang == 'de':
100                 l = 'A'
101             regexes = [r'VO?%s' % l, r'V%s-ST.' % l]
102             return any(re.match(r, f['versionCode']) for r in regexes)
103         # Some formats may not be in the same language as the url
104         formats = filter(_match_lang, formats)
105         # We order the formats by quality
106         formats = sorted(formats, key=lambda f: int(f['height']))
107         # Pick the best quality
108         format_info = formats[-1]
109         if format_info['mediaType'] == u'rtmp':
110             info_dict['url'] = format_info['streamer']
111             info_dict['play_path'] = 'mp4:' + format_info['url']
112         else:
113             info_dict['url'] = format_info['url']
114
115         return info_dict
116
117     def _extract_video(self, url, video_id, lang):
118         """Extract from videos.arte.tv"""
119         ref_xml_url = url.replace('/videos/', '/do_delegate/videos/')
120         ref_xml_url = ref_xml_url.replace('.html', ',view,asPlayerXml.xml')
121         ref_xml = self._download_webpage(ref_xml_url, video_id, note=u'Downloading metadata')
122         ref_xml_doc = xml.etree.ElementTree.fromstring(ref_xml)
123         config_node = find_xpath_attr(ref_xml_doc, './/video', 'lang', lang)
124         config_xml_url = config_node.attrib['ref']
125         config_xml = self._download_webpage(config_xml_url, video_id, note=u'Downloading configuration')
126
127         video_urls = list(re.finditer(r'<url quality="(?P<quality>.*?)">(?P<url>.*?)</url>', config_xml))
128         def _key(m):
129             quality = m.group('quality')
130             if quality == 'hd':
131                 return 2
132             else:
133                 return 1
134         # We pick the best quality
135         video_urls = sorted(video_urls, key=_key)
136         video_url = list(video_urls)[-1].group('url')
137         
138         title = self._html_search_regex(r'<name>(.*?)</name>', config_xml, 'title')
139         thumbnail = self._html_search_regex(r'<firstThumbnailUrl>(.*?)</firstThumbnailUrl>',
140                                             config_xml, 'thumbnail')
141         return {'id': video_id,
142                 'title': title,
143                 'thumbnail': thumbnail,
144                 'url': video_url,
145                 'ext': 'flv',
146                 }