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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 | ||
22a6f150 | 15 | _TESTS = [{ |
3d3538e4 | 16 | 'url': 'http://www.khanacademy.org/video/one-time-pad', |
3d3538e4 PH |
17 | 'md5': '7021db7f2d47d4fff89b13177cb1e8f4', |
18 | 'info_dict': { | |
22a6f150 PH |
19 | 'id': 'one-time-pad', |
20 | 'ext': 'mp4', | |
3d3538e4 PH |
21 | 'title': 'The one-time pad', |
22 | 'description': 'The perfect cipher', | |
23 | 'duration': 176, | |
24 | 'uploader': 'Brit Cruise', | |
25 | 'upload_date': '20120411', | |
26 | } | |
22a6f150 PH |
27 | }, { |
28 | 'url': 'https://www.khanacademy.org/math/applied-math/cryptography', | |
29 | 'info_dict': { | |
30 | 'id': 'cryptography', | |
31 | 'title': 'Journey into cryptography', | |
32 | 'description': 'How have humans protected their secret messages through history? What has changed today?', | |
33 | }, | |
34 | 'playlist_mincount': 3, | |
35 | }] | |
3d3538e4 PH |
36 | |
37 | def _real_extract(self, url): | |
38 | m = re.match(self._VALID_URL, url) | |
39 | video_id = m.group('id') | |
40 | ||
41 | if m.group('key') == 'video': | |
42 | data = self._download_json( | |
43 | 'http://api.khanacademy.org/api/v1/videos/' + video_id, | |
44 | video_id, 'Downloading video info') | |
45 | ||
46 | upload_date = unified_strdate(data['date_added']) | |
47 | uploader = ', '.join(data['author_names']) | |
48 | return { | |
49 | '_type': 'url_transparent', | |
50 | 'url': data['url'], | |
51 | 'id': video_id, | |
52 | 'title': data['title'], | |
53 | 'thumbnail': data['image_url'], | |
54 | 'duration': data['duration'], | |
55 | 'description': data['description'], | |
56 | 'uploader': uploader, | |
57 | 'upload_date': upload_date, | |
58 | } | |
59 | else: | |
60 | # topic | |
61 | data = self._download_json( | |
62 | 'http://api.khanacademy.org/api/v1/topic/' + video_id, | |
63 | video_id, 'Downloading topic info') | |
64 | ||
65 | entries = [ | |
66 | { | |
67 | '_type': 'url', | |
68 | 'url': c['url'], | |
69 | 'id': c['id'], | |
70 | 'title': c['title'], | |
71 | } | |
72 | for c in data['children'] if c['kind'] in ('Video', 'Topic')] | |
73 | ||
74 | return { | |
75 | '_type': 'playlist', | |
76 | 'id': video_id, | |
77 | 'title': data['title'], | |
78 | 'description': data['description'], | |
79 | 'entries': entries, | |
80 | } |