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3d3538e4 PH |
1 | from __future__ import unicode_literals |
2 | ||
3 | import re | |
4 | ||
5 | from .common import InfoExtractor | |
6 | from ..utils import ( | |
7 | unified_strdate, | |
8 | ) | |
9 | ||
10 | ||
11 | class KhanAcademyIE(InfoExtractor): | |
12 | _VALID_URL = r'^https?://(?:www\.)?khanacademy\.org/(?P<key>[^/]+)/(?:[^/]+/){,2}(?P<id>[^?#/]+)(?:$|[?#])' | |
13 | IE_NAME = 'KhanAcademy' | |
14 | ||
15 | _TEST = { | |
16 | 'url': 'http://www.khanacademy.org/video/one-time-pad', | |
17 | 'file': 'one-time-pad.mp4', | |
18 | 'md5': '7021db7f2d47d4fff89b13177cb1e8f4', | |
19 | 'info_dict': { | |
20 | 'title': 'The one-time pad', | |
21 | 'description': 'The perfect cipher', | |
22 | 'duration': 176, | |
23 | 'uploader': 'Brit Cruise', | |
24 | 'upload_date': '20120411', | |
25 | } | |
26 | } | |
27 | ||
28 | def _real_extract(self, url): | |
29 | m = re.match(self._VALID_URL, url) | |
30 | video_id = m.group('id') | |
31 | ||
32 | if m.group('key') == 'video': | |
33 | data = self._download_json( | |
34 | 'http://api.khanacademy.org/api/v1/videos/' + video_id, | |
35 | video_id, 'Downloading video info') | |
36 | ||
37 | upload_date = unified_strdate(data['date_added']) | |
38 | uploader = ', '.join(data['author_names']) | |
39 | return { | |
40 | '_type': 'url_transparent', | |
41 | 'url': data['url'], | |
42 | 'id': video_id, | |
43 | 'title': data['title'], | |
44 | 'thumbnail': data['image_url'], | |
45 | 'duration': data['duration'], | |
46 | 'description': data['description'], | |
47 | 'uploader': uploader, | |
48 | 'upload_date': upload_date, | |
49 | } | |
50 | else: | |
51 | # topic | |
52 | data = self._download_json( | |
53 | 'http://api.khanacademy.org/api/v1/topic/' + video_id, | |
54 | video_id, 'Downloading topic info') | |
55 | ||
56 | entries = [ | |
57 | { | |
58 | '_type': 'url', | |
59 | 'url': c['url'], | |
60 | 'id': c['id'], | |
61 | 'title': c['title'], | |
62 | } | |
63 | for c in data['children'] if c['kind'] in ('Video', 'Topic')] | |
64 | ||
65 | return { | |
66 | '_type': 'playlist', | |
67 | 'id': video_id, | |
68 | 'title': data['title'], | |
69 | 'description': data['description'], | |
70 | 'entries': entries, | |
71 | } |