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