Merge 5e7738a0df into 668332b973

youtube_dl/extractor/extractors.py

@@ -688,6 +688,10 @@ from .metacritic import MetacriticIE
 from .mgoon import MgoonIE
 from .mgtv import MGTVIE
 from .miaopai import MiaoPaiIE
+from .microsoftstream import (
+    MicrosoftStreamIE,
+    MicrosoftStreamChannelIE
+)
 from .microsoftvirtualacademy import (
     MicrosoftVirtualAcademyIE,
     MicrosoftVirtualAcademyCourseIE,

youtube_dl/extractor/microsoftstream.py

@@ -0,0 +1,317 @@
+# coding: utf-8
+from __future__ import unicode_literals
+from .common import InfoExtractor
+from ..utils import (ExtractorError, update_url_query, merge_dicts)
+
+
+class MicrosoftStreamBaseIE(InfoExtractor):
+    _LOGIN_URL = 'https://web.microsoftstream.com/?noSignUpCheck=1'     # expect redirection
+    _ACCESS_TOKEN = None  # A JWT token
+    _API_GATEWAY = None
+
+    def is_logged_in(self, webpage):
+        """
+         This test is based on the fact that Microsoft Stream will redirect unauthenticated users
+        """
+        return '<title>Microsoft Stream</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<AccessToken>.+?)\"", 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<APIGateway>.+?)\"", webpage, 'APIGateway')
+        return self._API_GATEWAY
+
+    """
+     Common getters
+    """
+    @property
+    def api_gateway(self):
+        """
+         Return the start of an API endoint, like "https://aaea-1.api.microsoftstream.com/api/"
+        """
+        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 headers(self):
+        return {'Authorization': 'Bearer %s' % self.access_token}
+
+    """
+     Utils function
+    """
+
+    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
+
+    """
+     Remapper
+
+     Remap data into correct field
+    """
+
+    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, video_id=None):
+        """
+         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=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=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 _remap_subtitle(self, tracks, video_id, 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=video_id, headers=self.headers)
+                subtitle_subset[track_language].append({'data': data, "ext": "vtt"})
+
+        return subtitle_subset
+
+    def _remap_video(self, video):
+        return {
+            'id': video['id'],
+            'title': video['name'],
+            'description': video.get('description'),
+            'uploader': video.get('creator').get('name'),
+            'thumbnails': self._remap_thumbnails(video.get('posterImage') or []),
+            'formats': self._remap_playback(video['playbackUrls'], video_id=video['id']),
+            'is_live': False
+        }
+    """
+    Formatter
+    """
+
+    def _format_texttrack_endpoint(self, video_id):
+        return "%s/videos/%s/texttracks?api-version=1.4-private" % (self.api_gateway, video_id)
+
+    def _request_texttracks(self, video_id):
+        """
+         Make an additional request to Microsoft Stream for the subtitle and auto-caption
+        """
+        self._TEXTTRACKS_RESPONSE = self._download_json(self._format_texttrack_endpoint(video_id), video_id, headers=self.headers).get('value')
+        return self._TEXTTRACKS_RESPONSE
+
+
+class MicrosoftStreamIE(MicrosoftStreamBaseIE):
+    """
+     Extractor for single Microsoft Stream video
+    """
+    IE_NAME = 'microsoftstream'
+    _VALID_URL = r'https?://(?:(?:web|www)\.)?microsoftstream\.com/video/(?P<id>[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'
+    _TEXTTRACKS_RESPONSE = None
+    _VIDEO_ID = None
+
+    _TESTS = [{
+        '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?://.*$'
+        },
+        'skip': 'Requires Microsoft 365 account credentials',
+    }, {
+        'url': 'https://www.microsoftstream.com/video/1541f3f9-7fed-4901-ae70-0f7cb775679f',
+        'only_matching': True,
+    }]
+
+    """
+     Getters
+
+     The following getters include helpful message to prompt developers for potential errors.
+    """
+
+    @property
+    def video_id(self):
+        if self._VIDEO_ID is None:
+            raise('Variable "_VIDEO_ID" is not defined. Did you make the main extraction call?')
+        return self._VIDEO_ID
+
+    @property
+    def media_info_endpoint(self):
+        return "%s/videos/%s?$expand=creator,tokens,status,liveEvent,extensions&api-version=1.4-private" % (self.api_gateway, self.video_id)
+
+    def _get_subtitles(self, tracks=None):                        # Fulfill abstract method
+        tracks = self._TEXTTRACKS_RESPONSE if tracks is None else tracks
+        return self._remap_subtitle(tracks, is_auto_generated=False, video_id=self.video_id)
+
+    def _get_automatic_captions(self, tracks=None):               # Fulfill abstract method
+        tracks = self._TEXTTRACKS_RESPONSE if tracks is None else tracks
+        return self._remap_subtitle(tracks, is_auto_generated=True, video_id=self.video_id)
+
+    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
+        video = self._download_json(self.media_info_endpoint, self.video_id, headers=self.headers)
+        texttracks = self._request_texttracks(self.video_id)
+
+        return merge_dicts(self._remap_video(video), {
+            'subtitles': self._get_subtitles(texttracks),
+            'automatic_captions': self._get_automatic_captions(texttracks),
+        })
+
+
+class MicrosoftStreamChannelIE(MicrosoftStreamBaseIE):
+    """
+     Extractor for single channel of Microsoft Stream video
+    """
+    IE_NAME = 'microsoftstream:channel'
+    _VALID_URL = r'https?://(?:(?:web|www)\.)?microsoftstream\.com/channel/(?P<id>[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'
+    _CHANNEL_ID = None
+
+    _TESTS = [{
+        'url': 'https://web.microsoftstream.com/channel/c883c6a5-9895-4900-9a35-62f4b5d506c9',
+        'only_matching': True,
+    }, {
+        'url': 'https://www.microsoftstream.com/channel/0ceffe58-07b1-4098-8ed9-a15f4e8231f7',
+        'only_matching': True,
+    }]
+
+    def _format_channel_video_endpoint(self, skip=0, top=100):
+        parameters = {
+            '$top': top,
+            '$skip': skip,
+            '$expand': 'creator,events',
+            '$orderby': 'created asc',
+            'api-version': '1.4-private'
+        }
+
+        return update_url_query('%schannels/%s/videos' % (self.api_gateway, self._CHANNEL_ID), parameters)
+
+    def _iterate_video(self, video):
+        subtitle_dict = {}
+
+        if (self._downloader.params.get('writesubtitles', False)
+                or self._downloader.params.get('writeautomaticsub', False)
+                or self._downloader.params.get('listsubtitles')):
+            texttracks = self._request_texttracks(video['id'])
+
+        if (self._downloader.params.get('writesubtitles', False)
+                or self._downloader.params.get('listsubtitles')):
+            subtitle_dict['subtitles'] = self._remap_subtitle(texttracks, video_id=video['id'], is_auto_generated=False)
+
+        if (self._downloader.params.get('writeautomaticsub', False)
+                or self._downloader.params.get('listsubtitles')):
+            subtitle_dict['automatic_captions'] = self._remap_subtitle(texttracks, video_id=video['id'], is_auto_generated=False)
+
+        return merge_dicts(self._remap_video(video), subtitle_dict)
+
+    def _fetch_video(self):
+        found_all_video = False
+        current_skip = 0
+        top = 100
+        all_video = []
+
+        while found_all_video is False:
+            video_info_endpoint = self._format_channel_video_endpoint(current_skip, top)
+            channel_video_subset = self._download_json(video_info_endpoint, self._CHANNEL_ID, headers=self.headers)['value']
+
+            for video in channel_video_subset:
+                all_video.append(self._iterate_video(video))           # Remap the video
+
+            found_all_video = bool(len(channel_video_subset) < top)  # Break out from the iteration if all content is downloaded.
+            current_skip += top                                      # Adjust starting position
+
+        return all_video
+
+    def _real_extract(self, url):
+        self._CHANNEL_ID = self._match_id(url)
+
+        webpage = self._download_webpage(url, self._CHANNEL_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)
+
+        entries = self._fetch_video()
+
+        return {'_type': 'playlist',
+                'entries': entries}