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1 | from __future__ import unicode_literals | |
2 | ||
3 | import re | |
4 | ||
5 | from .common import InfoExtractor | |
6 | from ..compat import ( | |
7 | compat_HTTPError, | |
8 | compat_str, | |
9 | compat_urlparse, | |
10 | ) | |
11 | from ..utils import ( | |
12 | ExtractorError, | |
13 | js_to_json, | |
14 | parse_duration, | |
15 | parse_iso8601, | |
16 | ) | |
17 | ||
18 | ||
19 | class ViideaIE(InfoExtractor): | |
20 | _VALID_URL = r'''(?x)https?://(?:www\.)?(?: | |
21 | videolectures\.net| | |
22 | flexilearn\.viidea\.net| | |
23 | presentations\.ocwconsortium\.org| | |
24 | video\.travel-zoom\.si| | |
25 | video\.pomp-forum\.si| | |
26 | tv\.nil\.si| | |
27 | video\.hekovnik.com| | |
28 | video\.szko\.si| | |
29 | kpk\.viidea\.com| | |
30 | inside\.viidea\.net| | |
31 | video\.kiberpipa\.org| | |
32 | bvvideo\.si| | |
33 | kongres\.viidea\.net| | |
34 | edemokracija\.viidea\.com | |
35 | )(?:/lecture)?/(?P<id>[^/]+)(?:/video/(?P<part>\d+))?/*(?:[#?].*)?$''' | |
36 | ||
37 | _TESTS = [{ | |
38 | 'url': 'http://videolectures.net/promogram_igor_mekjavic_eng/', | |
39 | 'info_dict': { | |
40 | 'id': '20171', | |
41 | 'display_id': 'promogram_igor_mekjavic_eng', | |
42 | 'ext': 'mp4', | |
43 | 'title': 'Automatics, robotics and biocybernetics', | |
44 | 'description': 'md5:815fc1deb6b3a2bff99de2d5325be482', | |
45 | 'thumbnail': r're:http://.*\.jpg', | |
46 | 'timestamp': 1372349289, | |
47 | 'upload_date': '20130627', | |
48 | 'duration': 565, | |
49 | }, | |
50 | 'params': { | |
51 | # m3u8 download | |
52 | 'skip_download': True, | |
53 | }, | |
54 | }, { | |
55 | # video with invalid direct format links (HTTP 403) | |
56 | 'url': 'http://videolectures.net/russir2010_filippova_nlp/', | |
57 | 'info_dict': { | |
58 | 'id': '14891', | |
59 | 'display_id': 'russir2010_filippova_nlp', | |
60 | 'ext': 'flv', | |
61 | 'title': 'NLP at Google', | |
62 | 'description': 'md5:fc7a6d9bf0302d7cc0e53f7ca23747b3', | |
63 | 'thumbnail': r're:http://.*\.jpg', | |
64 | 'timestamp': 1284375600, | |
65 | 'upload_date': '20100913', | |
66 | 'duration': 5352, | |
67 | }, | |
68 | 'params': { | |
69 | # rtmp download | |
70 | 'skip_download': True, | |
71 | }, | |
72 | }, { | |
73 | # event playlist | |
74 | 'url': 'http://videolectures.net/deeplearning2015_montreal/', | |
75 | 'info_dict': { | |
76 | 'id': '23181', | |
77 | 'title': 'Deep Learning Summer School, Montreal 2015', | |
78 | 'description': 'md5:0533a85e4bd918df52a01f0e1ebe87b7', | |
79 | 'thumbnail': r're:http://.*\.jpg', | |
80 | 'timestamp': 1438560000, | |
81 | }, | |
82 | 'playlist_count': 30, | |
83 | }, { | |
84 | # multi part lecture | |
85 | 'url': 'http://videolectures.net/mlss09uk_bishop_ibi/', | |
86 | 'info_dict': { | |
87 | 'id': '9737', | |
88 | 'display_id': 'mlss09uk_bishop_ibi', | |
89 | 'title': 'Introduction To Bayesian Inference', | |
90 | 'thumbnail': r're:http://.*\.jpg', | |
91 | 'timestamp': 1251622800, | |
92 | }, | |
93 | 'playlist': [{ | |
94 | 'info_dict': { | |
95 | 'id': '9737_part1', | |
96 | 'display_id': 'mlss09uk_bishop_ibi_part1', | |
97 | 'ext': 'wmv', | |
98 | 'title': 'Introduction To Bayesian Inference (Part 1)', | |
99 | 'thumbnail': r're:http://.*\.jpg', | |
100 | 'duration': 4622, | |
101 | 'timestamp': 1251622800, | |
102 | 'upload_date': '20090830', | |
103 | }, | |
104 | }, { | |
105 | 'info_dict': { | |
106 | 'id': '9737_part2', | |
107 | 'display_id': 'mlss09uk_bishop_ibi_part2', | |
108 | 'ext': 'wmv', | |
109 | 'title': 'Introduction To Bayesian Inference (Part 2)', | |
110 | 'thumbnail': r're:http://.*\.jpg', | |
111 | 'duration': 5641, | |
112 | 'timestamp': 1251622800, | |
113 | 'upload_date': '20090830', | |
114 | }, | |
115 | }], | |
116 | 'playlist_count': 2, | |
117 | }] | |
118 | ||
119 | def _real_extract(self, url): | |
120 | lecture_slug, explicit_part_id = re.match(self._VALID_URL, url).groups() | |
121 | ||
122 | webpage = self._download_webpage(url, lecture_slug) | |
123 | ||
124 | cfg = self._parse_json(self._search_regex( | |
125 | [r'cfg\s*:\s*({.+?})\s*,\s*[\da-zA-Z_]+\s*:\s*\(?\s*function', | |
126 | r'cfg\s*:\s*({[^}]+})'], | |
127 | webpage, 'cfg'), lecture_slug, js_to_json) | |
128 | ||
129 | lecture_id = compat_str(cfg['obj_id']) | |
130 | ||
131 | base_url = self._proto_relative_url(cfg['livepipe'], 'http:') | |
132 | ||
133 | try: | |
134 | lecture_data = self._download_json( | |
135 | '%s/site/api/lecture/%s?format=json' % (base_url, lecture_id), | |
136 | lecture_id)['lecture'][0] | |
137 | except ExtractorError as e: | |
138 | if isinstance(e.cause, compat_HTTPError) and e.cause.code == 403: | |
139 | msg = self._parse_json( | |
140 | e.cause.read().decode('utf-8'), lecture_id) | |
141 | raise ExtractorError(msg['detail'], expected=True) | |
142 | raise | |
143 | ||
144 | lecture_info = { | |
145 | 'id': lecture_id, | |
146 | 'display_id': lecture_slug, | |
147 | 'title': lecture_data['title'], | |
148 | 'timestamp': parse_iso8601(lecture_data.get('time')), | |
149 | 'description': lecture_data.get('description_wiki'), | |
150 | 'thumbnail': lecture_data.get('thumb'), | |
151 | } | |
152 | ||
153 | playlist_entries = [] | |
154 | lecture_type = lecture_data.get('type') | |
155 | parts = [compat_str(video) for video in cfg.get('videos', [])] | |
156 | if parts: | |
157 | multipart = len(parts) > 1 | |
158 | ||
159 | def extract_part(part_id): | |
160 | smil_url = '%s/%s/video/%s/smil.xml' % (base_url, lecture_slug, part_id) | |
161 | smil = self._download_smil(smil_url, lecture_id) | |
162 | info = self._parse_smil(smil, smil_url, lecture_id) | |
163 | self._sort_formats(info['formats']) | |
164 | info['id'] = lecture_id if not multipart else '%s_part%s' % (lecture_id, part_id) | |
165 | info['display_id'] = lecture_slug if not multipart else '%s_part%s' % (lecture_slug, part_id) | |
166 | if multipart: | |
167 | info['title'] += ' (Part %s)' % part_id | |
168 | switch = smil.find('.//switch') | |
169 | if switch is not None: | |
170 | info['duration'] = parse_duration(switch.attrib.get('dur')) | |
171 | item_info = lecture_info.copy() | |
172 | item_info.update(info) | |
173 | return item_info | |
174 | ||
175 | if explicit_part_id or not multipart: | |
176 | result = extract_part(explicit_part_id or parts[0]) | |
177 | else: | |
178 | result = { | |
179 | '_type': 'multi_video', | |
180 | 'entries': [extract_part(part) for part in parts], | |
181 | } | |
182 | result.update(lecture_info) | |
183 | ||
184 | # Immediately return explicitly requested part or non event item | |
185 | if explicit_part_id or lecture_type != 'evt': | |
186 | return result | |
187 | ||
188 | playlist_entries.append(result) | |
189 | ||
190 | # It's probably a playlist | |
191 | if not parts or lecture_type == 'evt': | |
192 | playlist_webpage = self._download_webpage( | |
193 | '%s/site/ajax/drilldown/?id=%s' % (base_url, lecture_id), lecture_id) | |
194 | entries = [ | |
195 | self.url_result(compat_urlparse.urljoin(url, video_url), 'Viidea') | |
196 | for _, video_url in re.findall( | |
197 | r'<a[^>]+href=(["\'])(.+?)\1[^>]+id=["\']lec=\d+', playlist_webpage)] | |
198 | playlist_entries.extend(entries) | |
199 | ||
200 | playlist = self.playlist_result(playlist_entries, lecture_id) | |
201 | playlist.update(lecture_info) | |
202 | return playlist |