# coding: utf-8
from __future__ import unicode_literals
from .common import InfoExtractor
from ..utils import ExtractorError
class MicrosoftStreamBaseIE(InfoExtractor):
_LOGIN_URL = 'https://web.microsoftstream.com/?noSignUpCheck=1' # expect redirection
_EXPECTED_TITLE = 'Microsoft Stream'
def is_logged_in(self, webpage):
return self._EXPECTED_TITLE in webpage
def _real_initialize(self):
username, password = self._get_login_info()
if username is not None or password is not None:
raise ExtractorError('MicrosoftStream Extractor does not support username/password log-in at the moment. Please use cookies log-in instead. See https://github.com/ytdl-org/youtube-dl/blob/master/README.md#how-do-i-pass-cookies-to-youtube-dl for more information')
"""
Extraction Helper
"""
def _extract_access_token(self, webpage):
"""
Extract the JWT access token with Regex
"""
self._ACCESS_TOKEN = self._html_search_regex(r"\"AccessToken\":\"(?P.+?)\"", webpage, 'AccessToken')
return self._ACCESS_TOKEN
def _extract_api_gateway(self, webpage):
"""
Extract the API gateway with Regex
"""
self._API_GATEWAY = self._html_search_regex(r"\"ApiGatewayUri\":\"(?P.+?)\"", webpage, 'APIGateway')
return self._API_GATEWAY
class MicrosoftStreamIE(MicrosoftStreamBaseIE):
"""
Extract of single Microsoft Stream video
"""
IE_NAME = 'microsoftstream'
_VALID_URL = r'https?://(?:(?:web|www)\.)?microsoftstream\.com/video/(?P[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})' # https://regex101.com/r/K1mlgK/1/
_NETRC_MACHINE = 'microsoftstream'
_ACCESS_TOKEN = None # A JWT token
_API_GATEWAY = None
_TEXTTRACKS_RESPONSE = None
_VIDEO_ID = None
_TEST = {
'url': 'https://web.microsoftstream.com/video/c883c6a5-9895-4900-9a35-62f4b5d506c9',
'info_dict': {
'id': 'c883c6a5-9895-4900-9a35-62f4b5d506c9',
'ext': 'mp4',
'title': 'Webinar for Researchers: Use of GitLab',
'thumbnail': r're:^https?://.*$',
}
}
"""
Getters
The following getters include helpful message to prompt developers for potential errors.
"""
@property
def api_gateway(self):
if self._API_GATEWAY is None:
raise ExtractorError('API gateway is None. Did you forget to call "_extract_api_gateway"?')
return self._API_GATEWAY
@property
def access_token(self):
if self._ACCESS_TOKEN is None:
raise ExtractorError('Access token is None. Did you forget to call "_extract_access_token"?')
return self._ACCESS_TOKEN
@property
def video_id(self):
if self._VIDEO_ID is None:
raise('Variable "_VIDEO_ID" is not defined. Did you make the main extraction call?')
return self._VIDEO_ID
@property
def headers(self):
return {'Authorization': 'Bearer %s' % self.access_token}
@property
def texttrack_info_endpoint(self):
return "%s/videos/%s/texttracks?api-version=1.3-private" % (self.api_gateway, self.video_id)
@property
def media_info_endpoint(self):
return "%s/videos/%s?$expand=creator,tokens,status,liveEvent,extensions&api-version=1.3-private" % (self.api_gateway, self.video_id)
def _request_texttracks(self):
"""
Make an additional request to Microsoft Stream for the subtitle and auto-caption
"""
# Map default variable
self._TEXTTRACKS_RESPONSE = self._download_json(self.texttrack_info_endpoint, self.video_id, headers=self.headers)['value']
return self._TEXTTRACKS_RESPONSE
def _determine_protocol(self, mime):
"""
A switch board for the MIME type provided from the API endpoint.
"""
if mime in ['application/dash+xml']:
return 'http_dash_segments'
elif mime in ['application/vnd.apple.mpegurl']:
return 'm3u8'
else:
return None
def _remap_thumbnails(self, thumbnail_dict_list):
output = []
preference_index = ['extraSmall', 'small', 'medium', 'large']
for _, key in enumerate(thumbnail_dict_list):
output.append({
'preference': preference_index.index(key),
'url': thumbnail_dict_list.get(key).get('url')
})
return output
def _remap_playback(self, master_playlist_urls):
"""
A parser for the HLS and MPD playlists from the API endpoint.
"""
output = []
for master_playlist_url in master_playlist_urls:
protocol = self._determine_protocol(master_playlist_url['mimeType'])
# Handle HLS Master playlist
if protocol == 'm3u8':
varient_playlists = self._extract_m3u8_formats(master_playlist_url['playbackUrl'], video_id=self.video_id, headers=self.headers)
# For MPEG-DASH Master playlists
elif protocol == 'http_dash_segments':
varient_playlists = self._extract_mpd_formats(master_playlist_url['playbackUrl'], video_id=self.video_id, headers=self.headers)
# For other Master playlists (like Microsoft Smooth Streaming)
else:
self.to_screen('Found unresolvable stream with format %s' % master_playlist_url['mimeType'])
continue
# Patching the "Authorization" header
for varient_playlist in varient_playlists:
varient_playlist['http_headers'] = self.headers
output.append(varient_playlist)
return output
def _extract_subtitle(self, tracks, is_auto_generated):
"""
An internal method for filtering and remapping text tracks
"""
if type(is_auto_generated) is not bool:
raise ExtractorError('Unexpected variable "is_auto_generated" type: must be a Boolean')
subtitle_subset = {}
for track in tracks:
track_language = track.get('language') # The track language must have a language code.
if track.get('autoGenerated') is is_auto_generated:
if track_language not in subtitle_subset:
subtitle_subset[track_language] = [] # Scaffold an empty list for the object to insert into
# Since the subtitle is token protected, a get request will fire here.
data = self._download_webpage(url_or_request=track.get('url'), video_id=self.video_id, headers=self.headers)
subtitle_subset[track_language].append({'data': data, "ext": "vtt"})
return subtitle_subset
def _get_subtitles(self, tracks=None): # Fulfill abstract method
tracks = self._TEXTTRACKS_RESPONSE if tracks is None else tracks
return self._extract_subtitle(tracks, False)
def _get_automatic_captions(self, tracks=None): # Fulfill abstract method
tracks = self._TEXTTRACKS_RESPONSE if tracks is None else tracks
return self._extract_subtitle(tracks, True)
def _real_extract(self, url):
self._VIDEO_ID = self._match_id(url)
webpage = self._download_webpage(url, self.video_id)
if not self.is_logged_in(webpage):
return self.raise_login_required()
# Extract access token from webpage
self._extract_access_token(webpage)
self._extract_api_gateway(webpage)
# "GET" api for video information
apiUri = self.media_info_endpoint
apiCall = self._download_json(apiUri, self.video_id, headers=self.headers)
texttracks = self._request_texttracks()
return {
'id': self.video_id,
'title': apiCall['name'],
'description': apiCall.get('description'),
'uploader': apiCall.get('creator').get('name'),
'thumbnails': self._remap_thumbnails(apiCall.get('posterImage')),
'formats': self._remap_playback(apiCall['playbackUrls']),
'subtitles': self._get_subtitles(texttracks),
'automatic_captions': self._get_automatic_captions(texttracks),
'is_live': False,
# 'duration': apiCall['media']['duration'],
}