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import itertools
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import json
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import time
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import urllib
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from ..utils import (
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ExtractorError,
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parse_iso8601,
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try_get,
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)
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from .common import InfoExtractor
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class NebulaBaseIE(InfoExtractor):
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_NETRC_MACHINE = 'watchnebula'
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_nebula_api_token = None
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_nebula_bearer_token = None
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_zype_access_token = None
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def _perform_nebula_auth(self, username, password):
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if not username or not password:
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self.raise_login_required()
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data = json.dumps({'email': username, 'password': password}).encode('utf8')
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response = self._download_json(
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'https://api.watchnebula.com/api/v1/auth/login/',
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data=data, fatal=False, video_id=None,
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headers={
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'content-type': 'application/json',
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# Submitting the 'sessionid' cookie always causes a 403 on auth endpoint
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'cookie': ''
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},
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note='Logging in to Nebula with supplied credentials',
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errnote='Authentication failed or rejected')
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if not response or not response.get('key'):
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self.raise_login_required()
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# save nebula token as cookie
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self._set_cookie(
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'nebula.app', 'nebula-auth',
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urllib.parse.quote(
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json.dumps({
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"apiToken": response["key"],
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"isLoggingIn": False,
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"isLoggingOut": False,
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}, separators=(",", ":"))),
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expire_time=int(time.time()) + 86400 * 365,
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)
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return response['key']
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def _retrieve_nebula_api_token(self, username=None, password=None):
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"""
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Check cookie jar for valid token. Try to authenticate using credentials if no valid token
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can be found in the cookie jar.
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"""
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nebula_cookies = self._get_cookies('https://nebula.app')
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nebula_cookie = nebula_cookies.get('nebula-auth')
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if nebula_cookie:
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self.to_screen('Authenticating to Nebula with token from cookie jar')
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nebula_cookie_value = urllib.parse.unquote(nebula_cookie.value)
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nebula_api_token = self._parse_json(nebula_cookie_value, None).get('apiToken')
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if nebula_api_token:
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return nebula_api_token
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return self._perform_nebula_auth(username, password)
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def _call_nebula_api(self, url, video_id=None, method='GET', auth_type='api', note=''):
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assert method in ('GET', 'POST',)
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assert auth_type in ('api', 'bearer',)
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def inner_call():
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authorization = f'Token {self._nebula_api_token}' if auth_type == 'api' else f'Bearer {self._nebula_bearer_token}'
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return self._download_json(
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url, video_id, note=note, headers={'Authorization': authorization},
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data=b'' if method == 'POST' else None)
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try:
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return inner_call()
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except ExtractorError as exc:
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# if 401 or 403, attempt credential re-auth and retry
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if exc.cause and isinstance(exc.cause, urllib.error.HTTPError) and exc.cause.code in (401, 403):
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self.to_screen(f'Reauthenticating to Nebula and retrying, because last {auth_type} call resulted in error {exc.cause.code}')
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self._perform_login()
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return inner_call()
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else:
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raise
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def _fetch_nebula_bearer_token(self):
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"""
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Get a Bearer token for the Nebula API. This will be required to fetch video meta data.
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"""
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response = self._call_nebula_api('https://api.watchnebula.com/api/v1/authorization/',
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method='POST',
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note='Authorizing to Nebula')
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return response['token']
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def _fetch_zype_access_token(self):
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"""
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Get a Zype access token, which is required to access video streams -- in our case: to
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generate video URLs.
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"""
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user_object = self._call_nebula_api('https://api.watchnebula.com/api/v1/auth/user/', note='Retrieving Zype access token')
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access_token = try_get(user_object, lambda x: x['zype_auth_info']['access_token'], str)
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if not access_token:
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if try_get(user_object, lambda x: x['is_subscribed'], bool):
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# TODO: Reimplement the same Zype token polling the Nebula frontend implements
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# see https://github.com/ytdl-org/youtube-dl/pull/24805#issuecomment-749231532
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raise ExtractorError(
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'Unable to extract Zype access token from Nebula API authentication endpoint. '
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'Open an arbitrary video in a browser with this account to generate a token',
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expected=True)
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raise ExtractorError('Unable to extract Zype access token from Nebula API authentication endpoint')
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return access_token
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def _build_video_info(self, episode):
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zype_id = episode['zype_id']
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zype_video_url = f'https://player.zype.com/embed/{zype_id}.html?access_token={self._zype_access_token}'
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channel_slug = episode['channel_slug']
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return {
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'id': episode['zype_id'],
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'display_id': episode['slug'],
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'_type': 'url_transparent',
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'ie_key': 'Zype',
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'url': zype_video_url,
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'title': episode['title'],
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'description': episode['description'],
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'timestamp': parse_iso8601(episode['published_at']),
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'thumbnails': [{
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# 'id': tn.get('name'), # this appears to be null
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'url': tn['original'],
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'height': key,
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} for key, tn in episode['assets']['thumbnail'].items()],
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'duration': episode['duration'],
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'channel': episode['channel_title'],
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'channel_id': channel_slug,
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'channel_url': f'https://nebula.app/{channel_slug}',
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'uploader': episode['channel_title'],
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'uploader_id': channel_slug,
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'uploader_url': f'https://nebula.app/{channel_slug}',
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'series': episode['channel_title'],
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'creator': episode['channel_title'],
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}
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def _perform_login(self, username=None, password=None):
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self._nebula_api_token = self._retrieve_nebula_api_token(username, password)
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self._nebula_bearer_token = self._fetch_nebula_bearer_token()
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self._zype_access_token = self._fetch_zype_access_token()
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class NebulaIE(NebulaBaseIE):
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_VALID_URL = r'https?://(?:www\.)?(?:watchnebula\.com|nebula\.app)/videos/(?P<id>[-\w]+)'
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_TESTS = [
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{
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'url': 'https://nebula.app/videos/that-time-disney-remade-beauty-and-the-beast',
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'md5': '14944cfee8c7beeea106320c47560efc',
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'info_dict': {
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'id': '5c271b40b13fd613090034fd',
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'ext': 'mp4',
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'title': 'That Time Disney Remade Beauty and the Beast',
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'description': 'Note: this video was originally posted on YouTube with the sponsor read included. We weren’t able to remove it without reducing video quality, so it’s presented here in its original context.',
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'upload_date': '20180731',
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'timestamp': 1533009600,
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'channel': 'Lindsay Ellis',
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'channel_id': 'lindsayellis',
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'uploader': 'Lindsay Ellis',
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'uploader_id': 'lindsayellis',
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'timestamp': 1533009600,
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'uploader_url': 'https://nebula.app/lindsayellis',
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'series': 'Lindsay Ellis',
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'average_rating': int,
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'display_id': 'that-time-disney-remade-beauty-and-the-beast',
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'channel_url': 'https://nebula.app/lindsayellis',
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'creator': 'Lindsay Ellis',
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'duration': 2212,
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'view_count': int,
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'thumbnail': r're:https://\w+\.cloudfront\.net/[\w-]+\.jpeg?.*',
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},
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},
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{
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'url': 'https://nebula.app/videos/the-logistics-of-d-day-landing-craft-how-the-allies-got-ashore',
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'md5': 'd05739cf6c38c09322422f696b569c23',
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'info_dict': {
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'id': '5e7e78171aaf320001fbd6be',
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'ext': 'mp4',
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'title': 'Landing Craft - How The Allies Got Ashore',
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'description': r're:^In this episode we explore the unsung heroes of D-Day, the landing craft.',
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'upload_date': '20200327',
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'timestamp': 1585348140,
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'channel': 'Real Engineering',
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'channel_id': 'realengineering',
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'uploader': 'Real Engineering',
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'uploader_id': 'realengineering',
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'view_count': int,
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'series': 'Real Engineering',
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'average_rating': int,
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'display_id': 'the-logistics-of-d-day-landing-craft-how-the-allies-got-ashore',
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'creator': 'Real Engineering',
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'duration': 841,
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'channel_url': 'https://nebula.app/realengineering',
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'uploader_url': 'https://nebula.app/realengineering',
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'thumbnail': r're:https://\w+\.cloudfront\.net/[\w-]+\.jpeg?.*',
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},
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},
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{
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'url': 'https://nebula.app/videos/money-episode-1-the-draw',
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'md5': 'ebe28a7ad822b9ee172387d860487868',
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'info_dict': {
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'id': '5e779ebdd157bc0001d1c75a',
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'ext': 'mp4',
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'title': 'Episode 1: The Draw',
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'description': r'contains:There’s free money on offer… if the players can all work together.',
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'upload_date': '20200323',
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'timestamp': 1584980400,
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'channel': 'Tom Scott Presents: Money',
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'channel_id': 'tom-scott-presents-money',
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'uploader': 'Tom Scott Presents: Money',
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'uploader_id': 'tom-scott-presents-money',
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'uploader_url': 'https://nebula.app/tom-scott-presents-money',
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'duration': 825,
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'channel_url': 'https://nebula.app/tom-scott-presents-money',
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'view_count': int,
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'series': 'Tom Scott Presents: Money',
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'display_id': 'money-episode-1-the-draw',
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'thumbnail': r're:https://\w+\.cloudfront\.net/[\w-]+\.jpeg?.*',
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'average_rating': int,
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'creator': 'Tom Scott Presents: Money',
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},
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},
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{
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'url': 'https://watchnebula.com/videos/money-episode-1-the-draw',
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'only_matching': True,
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},
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]
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def _fetch_video_metadata(self, slug):
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return self._call_nebula_api(f'https://content.watchnebula.com/video/{slug}/',
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video_id=slug,
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auth_type='bearer',
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note='Fetching video meta data')
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def _real_extract(self, url):
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slug = self._match_id(url)
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video = self._fetch_video_metadata(slug)
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return self._build_video_info(video)
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class NebulaSubscriptionsIE(NebulaBaseIE):
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IE_NAME = 'nebula:subscriptions'
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_VALID_URL = r'https?://(?:www\.)?(?:watchnebula\.com|nebula\.app)/myshows'
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_TESTS = [
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{
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'url': 'https://nebula.app/myshows',
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'playlist_mincount': 1,
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'info_dict': {
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'id': 'myshows',
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},
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},
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]
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def _generate_playlist_entries(self):
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next_url = 'https://content.watchnebula.com/library/video/?page_size=100'
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page_num = 1
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while next_url:
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channel = self._call_nebula_api(next_url, 'myshows', auth_type='bearer',
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note=f'Retrieving subscriptions page {page_num}')
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for episode in channel['results']:
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yield self._build_video_info(episode)
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next_url = channel['next']
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page_num += 1
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def _real_extract(self, url):
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return self.playlist_result(self._generate_playlist_entries(), 'myshows')
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class NebulaChannelIE(NebulaBaseIE):
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IE_NAME = 'nebula:channel'
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_VALID_URL = r'https?://(?:www\.)?(?:watchnebula\.com|nebula\.app)/(?!myshows|videos/)(?P<id>[-\w]+)'
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_TESTS = [
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{
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'url': 'https://nebula.app/tom-scott-presents-money',
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'info_dict': {
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'id': 'tom-scott-presents-money',
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'title': 'Tom Scott Presents: Money',
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'description': 'Tom Scott hosts a series all about trust, negotiation and money.',
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},
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'playlist_count': 5,
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}, {
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'url': 'https://nebula.app/lindsayellis',
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'info_dict': {
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'id': 'lindsayellis',
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'title': 'Lindsay Ellis',
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'description': 'Enjoy these hottest of takes on Disney, Transformers, and Musicals.',
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},
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'playlist_mincount': 100,
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},
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]
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def _generate_playlist_entries(self, collection_id, channel):
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episodes = channel['episodes']['results']
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for page_num in itertools.count(2):
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for episode in episodes:
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yield self._build_video_info(episode)
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next_url = channel['episodes']['next']
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if not next_url:
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break
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channel = self._call_nebula_api(next_url, collection_id, auth_type='bearer',
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note=f'Retrieving channel page {page_num}')
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episodes = channel['episodes']['results']
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def _real_extract(self, url):
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collection_id = self._match_id(url)
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channel_url = f'https://content.watchnebula.com/video/channels/{collection_id}/'
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channel = self._call_nebula_api(channel_url, collection_id, auth_type='bearer', note='Retrieving channel')
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channel_details = channel['details']
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return self.playlist_result(
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entries=self._generate_playlist_entries(collection_id, channel),
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playlist_id=collection_id,
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playlist_title=channel_details['title'],
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playlist_description=channel_details['description']
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)
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