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[discovery] use API call for video data extraction(#21808)

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This commit is contained in:
Remita Amine 2019-08-01 22:44:38 +01:00
parent 826dcff99c
commit 535111657b
1 changed files with 26 additions and 33 deletions
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59
youtube_dl/extractor/discovery.py
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@ -5,14 +5,8 @@
import string
from .discoverygo import DiscoveryGoBaseIE
from ..compat import (
compat_str,
compat_urllib_parse_unquote,
)
from ..utils import (
ExtractorError,
try_get,
)
from ..compat import compat_urllib_parse_unquote
from ..utils import ExtractorError
from ..compat import compat_HTTPError
@ -40,15 +34,15 @@ class DiscoveryIE(DiscoveryGoBaseIE):
cookingchanneltv|
motortrend
)
)\.com(?P<path>/tv-shows/[^/]+/(?:video|full-episode)s/(?P<id>[^./?#]+))'''
)\.com/tv-shows/[^/]+/(?:video|full-episode)s/(?P<id>[^./?#]+)'''
_TESTS = [{
'url': 'https://www.discovery.com/tv-shows/cash-cab/videos/dave-foley',
'url': 'https://go.discovery.com/tv-shows/cash-cab/videos/riding-with-matthew-perry',
'info_dict': {
'id': '5a2d9b4d6b66d17a5026e1fd',
'id': '5a2f35ce6b66d17a5026e29e',
'ext': 'mp4',
'title': 'Dave Foley',
'description': 'md5:4b39bcafccf9167ca42810eb5f28b01f',
'duration': 608,
'title': 'Riding with Matthew Perry',
'description': 'md5:a34333153e79bc4526019a5129e7f878',
'duration': 84,
},
'params': {
'skip_download': True, # requires ffmpeg
@ -62,17 +56,10 @@ class DiscoveryIE(DiscoveryGoBaseIE):
}]
_GEO_COUNTRIES = ['US']
_GEO_BYPASS = False
_API_BASE_URL = 'https://api.discovery.com/v1/'
def _real_extract(self, url):
site, path, display_id = re.match(self._VALID_URL, url).groups()
webpage = self._download_webpage(url, display_id)
react_data = self._parse_json(self._search_regex(
r'window\.__reactTransmitPacket\s*=\s*({.+?});',
webpage, 'react data'), display_id)
content_blocks = react_data['layout'][path]['contentBlocks']
video = next(cb for cb in content_blocks if cb.get('type') == 'video')['content']['items'][0]
video_id = video['id']
site, display_id = re.match(self._VALID_URL, url).groups()
access_token = None
cookies = self._get_cookies(url)
@ -82,27 +69,33 @@ def _real_extract(self, url):
if auth_storage_cookie and auth_storage_cookie.value:
auth_storage = self._parse_json(compat_urllib_parse_unquote(
compat_urllib_parse_unquote(auth_storage_cookie.value)),
video_id, fatal=False) or {}
display_id, fatal=False) or {}
access_token = auth_storage.get('a') or auth_storage.get('access_token')
if not access_token:
access_token = self._download_json(
'https://%s.com/anonymous' % site, display_id, query={
'https://%s.com/anonymous' % site, display_id,
'Downloading token JSON metadata', query={
'authRel': 'authorization',
'client_id': try_get(
react_data, lambda x: x['application']['apiClientId'],
compat_str) or '3020a40c2356a645b4b4',
'client_id': '3020a40c2356a645b4b4',
'nonce': ''.join([random.choice(string.ascii_letters) for _ in range(32)]),
'redirectUri': 'https://fusion.ddmcdn.com/app/mercury-sdk/180/redirectHandler.html?https://www.%s.com' % site,
})['access_token']
try:
headers = self.geo_verification_headers()
headers['Authorization'] = 'Bearer ' + access_token
headers = self.geo_verification_headers()
headers['Authorization'] = 'Bearer ' + access_token
try:
video = self._download_json(
self._API_BASE_URL + 'content/videos',
display_id, 'Downloading content JSON metadata',
headers=headers, query={
'slug': display_id,
})[0]
video_id = video['id']
stream = self._download_json(
'https://api.discovery.com/v1/streaming/video/' + video_id,
display_id, headers=headers)
self._API_BASE_URL + 'streaming/video/' + video_id,
display_id, 'Downloading streaming JSON metadata', headers=headers)
except ExtractorError as e:
if isinstance(e.cause, compat_HTTPError) and e.cause.code in (401, 403):
e_description = self._parse_json(