1 # coding: utf-8
2
3 from __future__ import unicode_literals
4
5 import base64
6
7 from ..compat import compat_urllib_parse_unquote
8 from ..utils import determine_ext
9 from .bokecc import BokeCCBaseIE
10
11
12 class InfoQIE(BokeCCBaseIE):
13 _VALID_URL = r'https?://(?:www\.)?infoq\.com/(?:[^/]+/)+(?P<id>[^/]+)'
14
15 _TESTS = [{
16 'url': 'http://www.infoq.com/presentations/A-Few-of-My-Favorite-Python-Things',
17 'md5': 'b5ca0e0a8c1fed93b0e65e48e462f9a2',
18 'info_dict': {
19 'id': 'A-Few-of-My-Favorite-Python-Things',
20 'ext': 'mp4',
21 'description': 'Mike Pirnat presents some tips and tricks, standard libraries and third party packages that make programming in Python a richer experience.',
22 'title': 'A Few of My Favorite [Python] Things',
23 },
24 }, {
25 'url': 'http://www.infoq.com/fr/presentations/changez-avis-sur-javascript',
26 'only_matching': True,
27 }, {
28 'url': 'http://www.infoq.com/cn/presentations/openstack-continued-delivery',
29 'md5': '4918d0cca1497f2244572caf626687ef',
30 'info_dict': {
31 'id': 'openstack-continued-delivery',
32 'title': 'OpenStack持续交付之路',
33 'ext': 'flv',
34 'description': 'md5:308d981fb28fa42f49f9568322c683ff',
35 },
36 }]
37
38 def _extract_rtmp_videos(self, webpage):
39 # The server URL is hardcoded
40 video_url = 'rtmpe://video.infoq.com/cfx/st/'
41
42 # Extract video URL
43 encoded_id = self._search_regex(
44 r"jsclassref\s*=\s*'([^']*)'", webpage, 'encoded id', default=None)
45
46 real_id = compat_urllib_parse_unquote(base64.b64decode(encoded_id.encode('ascii')).decode('utf-8'))
47 playpath = 'mp4:' + real_id
48
49 return [{
50 'format_id': 'rtmp',
51 'url': video_url,
52 'ext': determine_ext(playpath),
53 'play_path': playpath,
54 }]
55
56 def _extract_http_videos(self, webpage):
57 http_video_url = self._search_regex(r'P\.s\s*=\s*\'([^\']+)\'', webpage, 'video URL')
58
59 policy = self._search_regex(r'InfoQConstants.scp\s*=\s*\'([^\']+)\'', webpage, 'policy')
60 signature = self._search_regex(r'InfoQConstants.scs\s*=\s*\'([^\']+)\'', webpage, 'signature')
61 key_pair_id = self._search_regex(r'InfoQConstants.sck\s*=\s*\'([^\']+)\'', webpage, 'key-pair-id')
62
63 return [{
64 'format_id': 'http',
65 'url': http_video_url,
66 'http_headers': {
67 'Cookie': 'CloudFront-Policy=%s; CloudFront-Signature=%s; CloudFront-Key-Pair-Id=%s' % (
68 policy, signature, key_pair_id),
69 },
70 }]
71
72 def _real_extract(self, url):
73 video_id = self._match_id(url)
74 webpage = self._download_webpage(url, video_id)
75
76 video_title = self._html_search_regex(r'<title>(.*?)</title>', webpage, 'title')
77 video_description = self._html_search_meta('description', webpage, 'description')
78
79 if '/cn/' in url:
80 # for China videos, HTTP video URL exists but always fails with 403
81 formats = self._extract_bokecc_formats(webpage, video_id)
82 else:
83 formats = self._extract_rtmp_videos(webpage) + self._extract_http_videos(webpage)
84
85 self._sort_formats(formats)
86
87 return {
88 'id': video_id,
89 'title': video_title,
90 'description': video_description,
91 'formats': formats,
92 }
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