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			116 lines
		
	
	
		
			4.7 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			116 lines
		
	
	
		
			4.7 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
import random
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import string
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from .discoverygo import DiscoveryGoBaseIE
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from ..compat import compat_urllib_parse_unquote
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from ..networking.exceptions import HTTPError
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from ..utils import ExtractorError
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class DiscoveryIE(DiscoveryGoBaseIE):
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    _VALID_URL = r'''(?x)https?://
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        (?P<site>
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            go\.discovery|
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            www\.
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                (?:
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                    investigationdiscovery|
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                    discoverylife|
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                    animalplanet|
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                    ahctv|
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                    destinationamerica|
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                    sciencechannel|
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                    tlc
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                )|
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            watch\.
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                (?:
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                    hgtv|
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                    foodnetwork|
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                    travelchannel|
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                    diynetwork|
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                    cookingchanneltv|
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                    motortrend
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                )
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        )\.com/tv-shows/(?P<show_slug>[^/]+)/(?:video|full-episode)s/(?P<id>[^./?#]+)'''
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    _TESTS = [{
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        'url': 'https://go.discovery.com/tv-shows/cash-cab/videos/riding-with-matthew-perry',
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        'info_dict': {
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            'id': '5a2f35ce6b66d17a5026e29e',
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            'ext': 'mp4',
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            'title': 'Riding with Matthew Perry',
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            'description': 'md5:a34333153e79bc4526019a5129e7f878',
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            'duration': 84,
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        },
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        'params': {
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            'skip_download': True,  # requires ffmpeg
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        }
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    }, {
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        'url': 'https://www.investigationdiscovery.com/tv-shows/final-vision/full-episodes/final-vision',
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        'only_matching': True,
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    }, {
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        'url': 'https://go.discovery.com/tv-shows/alaskan-bush-people/videos/follow-your-own-road',
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        'only_matching': True,
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    }, {
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        # using `show_slug` is important to get the correct video data
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        'url': 'https://www.sciencechannel.com/tv-shows/mythbusters-on-science/full-episodes/christmas-special',
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        'only_matching': True,
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    }]
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    _GEO_COUNTRIES = ['US']
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    _GEO_BYPASS = False
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    _API_BASE_URL = 'https://api.discovery.com/v1/'
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    def _real_extract(self, url):
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        site, show_slug, display_id = self._match_valid_url(url).groups()
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        access_token = None
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        cookies = self._get_cookies(url)
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        # prefer Affiliate Auth Token over Anonymous Auth Token
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        auth_storage_cookie = cookies.get('eosAf') or cookies.get('eosAn')
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        if auth_storage_cookie and auth_storage_cookie.value:
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            auth_storage = self._parse_json(compat_urllib_parse_unquote(
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                compat_urllib_parse_unquote(auth_storage_cookie.value)),
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                display_id, fatal=False) or {}
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            access_token = auth_storage.get('a') or auth_storage.get('access_token')
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        if not access_token:
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            access_token = self._download_json(
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                'https://%s.com/anonymous' % site, display_id,
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                'Downloading token JSON metadata', query={
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                    'authRel': 'authorization',
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                    'client_id': '3020a40c2356a645b4b4',
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                    'nonce': ''.join(random.choices(string.ascii_letters, k=32)),
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                    'redirectUri': 'https://www.discovery.com/',
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                })['access_token']
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        headers = self.geo_verification_headers()
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        headers['Authorization'] = 'Bearer ' + access_token
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        try:
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            video = self._download_json(
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                self._API_BASE_URL + 'content/videos',
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                display_id, 'Downloading content JSON metadata',
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                headers=headers, query={
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                    'embed': 'show.name',
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                    'fields': 'authenticated,description.detailed,duration,episodeNumber,id,name,parental.rating,season.number,show,tags',
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                    'slug': display_id,
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                    'show_slug': show_slug,
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                })[0]
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            video_id = video['id']
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            stream = self._download_json(
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                self._API_BASE_URL + 'streaming/video/' + video_id,
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                display_id, 'Downloading streaming JSON metadata', headers=headers)
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        except ExtractorError as e:
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            if isinstance(e.cause, HTTPError) and e.cause.status in (401, 403):
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                e_description = self._parse_json(
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                    e.cause.response.read().decode(), display_id)['description']
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                if 'resource not available for country' in e_description:
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                    self.raise_geo_restricted(countries=self._GEO_COUNTRIES)
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                if 'Authorized Networks' in e_description:
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                    raise ExtractorError(
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                        'This video is only available via cable service provider subscription that'
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                        ' is not currently supported. You may want to use --cookies.', expected=True)
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                raise ExtractorError(e_description)
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            raise
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        return self._extract_video_info(video, stream, display_id)
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