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[youtubedl] / youtube_dl / extractor / discovery.py
1 from __future__ import unicode_literals
2
3 import random
4 import re
5 import string
6
7 from .discoverygo import DiscoveryGoBaseIE
8 from ..compat import (
9 compat_str,
10 compat_urllib_parse_unquote,
11 )
12 from ..utils import (
13 ExtractorError,
14 try_get,
15 )
16 from ..compat import compat_HTTPError
17
18
19 class DiscoveryIE(DiscoveryGoBaseIE):
20 _VALID_URL = r'''(?x)https?://(?:www\.)?(?P<site>
21 discovery|
22 investigationdiscovery|
23 discoverylife|
24 animalplanet|
25 ahctv|
26 destinationamerica|
27 sciencechannel|
28 tlc|
29 velocity
30 )\.com(?P<path>/tv-shows/[^/]+/(?:video|full-episode)s/(?P<id>[^./?#]+))'''
31 _TESTS = [{
32 'url': 'https://www.discovery.com/tv-shows/cash-cab/videos/dave-foley',
33 'info_dict': {
34 'id': '5a2d9b4d6b66d17a5026e1fd',
35 'ext': 'mp4',
36 'title': 'Dave Foley',
37 'description': 'md5:4b39bcafccf9167ca42810eb5f28b01f',
38 'duration': 608,
39 },
40 'params': {
41 'skip_download': True, # requires ffmpeg
42 }
43 }, {
44 'url': 'https://www.investigationdiscovery.com/tv-shows/final-vision/full-episodes/final-vision',
45 'only_matching': True,
46 }]
47 _GEO_COUNTRIES = ['US']
48 _GEO_BYPASS = False
49
50 def _real_extract(self, url):
51 site, path, display_id = re.match(self._VALID_URL, url).groups()
52 webpage = self._download_webpage(url, display_id)
53
54 react_data = self._parse_json(self._search_regex(
55 r'window\.__reactTransmitPacket\s*=\s*({.+?});',
56 webpage, 'react data'), display_id)
57 content_blocks = react_data['layout'][path]['contentBlocks']
58 video = next(cb for cb in content_blocks if cb.get('type') == 'video')['content']['items'][0]
59 video_id = video['id']
60
61 access_token = None
62 cookies = self._get_cookies(url)
63
64 # prefer Affiliate Auth Token over Anonymous Auth Token
65 auth_storage_cookie = cookies.get('eosAf') or cookies.get('eosAn')
66 if auth_storage_cookie and auth_storage_cookie.value:
67 auth_storage = self._parse_json(compat_urllib_parse_unquote(
68 compat_urllib_parse_unquote(auth_storage_cookie.value)),
69 video_id, fatal=False) or {}
70 access_token = auth_storage.get('a') or auth_storage.get('access_token')
71
72 if not access_token:
73 access_token = self._download_json(
74 'https://www.%s.com/anonymous' % site, display_id, query={
75 'authRel': 'authorization',
76 'client_id': try_get(
77 react_data, lambda x: x['application']['apiClientId'],
78 compat_str) or '3020a40c2356a645b4b4',
79 'nonce': ''.join([random.choice(string.ascii_letters) for _ in range(32)]),
80 'redirectUri': 'https://fusion.ddmcdn.com/app/mercury-sdk/180/redirectHandler.html?https://www.%s.com' % site,
81 })['access_token']
82
83 try:
84 stream = self._download_json(
85 'https://api.discovery.com/v1/streaming/video/' + video_id,
86 display_id, headers={
87 'Authorization': 'Bearer ' + access_token,
88 })
89 except ExtractorError as e:
90 if isinstance(e.cause, compat_HTTPError) and e.cause.code in (401, 403):
91 e_description = self._parse_json(
92 e.cause.read().decode(), display_id)['description']
93 if 'resource not available for country' in e_description:
94 self.raise_geo_restricted(countries=self._GEO_COUNTRIES)
95 if 'Authorized Networks' in e_description:
96 raise ExtractorError(
97 'This video is only available via cable service provider subscription that'
98 ' is not currently supported. You may want to use --cookies.', expected=True)
99 raise ExtractorError(e_description)
100 raise
101
102 return self._extract_video_info(video, stream, display_id)