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Diffstat (limited to 'yt_dlp/extractor/panopto.py')
| -rw-r--r-- | yt_dlp/extractor/panopto.py | 600 |
1 files changed, 600 insertions, 0 deletions
diff --git a/yt_dlp/extractor/panopto.py b/yt_dlp/extractor/panopto.py new file mode 100644 index 0000000..ddea32d --- /dev/null +++ b/yt_dlp/extractor/panopto.py @@ -0,0 +1,600 @@ +import calendar +import json +import functools +from datetime import datetime, timezone +from random import random + +from .common import InfoExtractor +from ..compat import ( + compat_urllib_parse_urlparse, + compat_urlparse +) + +from ..utils import ( + bug_reports_message, + ExtractorError, + get_first, + int_or_none, + OnDemandPagedList, + parse_qs, + srt_subtitles_timecode, + traverse_obj, +) + + +class PanoptoBaseIE(InfoExtractor): + BASE_URL_RE = r'(?P<base_url>https?://[\w.-]+\.panopto.(?:com|eu)/Panopto)' + + # see panopto core.js + _SUB_LANG_MAPPING = { + 0: 'en-US', + 1: 'en-GB', + 2: 'es-MX', + 3: 'es-ES', + 4: 'de-DE', + 5: 'fr-FR', + 6: 'nl-NL', + 7: 'th-TH', + 8: 'zh-CN', + 9: 'zh-TW', + 10: 'ko-KR', + 11: 'ja-JP', + 12: 'ru-RU', + 13: 'pt-PT', + 14: 'pl-PL', + 15: 'en-AU', + 16: 'da-DK', + 17: 'fi-FI', + 18: 'hu-HU', + 19: 'nb-NO', + 20: 'sv-SE', + 21: 'it-IT' + } + + def _call_api(self, base_url, path, video_id, data=None, fatal=True, **kwargs): + response = self._download_json( + base_url + path, video_id, data=json.dumps(data).encode('utf8') if data else None, + fatal=fatal, headers={'accept': 'application/json', 'content-type': 'application/json'}, **kwargs) + if not response: + return + error_code = traverse_obj(response, 'ErrorCode') + if error_code == 2: + self.raise_login_required(method='cookies') + elif error_code is not None: + msg = f'Panopto said: {response.get("ErrorMessage")}' + if fatal: + raise ExtractorError(msg, video_id=video_id, expected=True) + else: + self.report_warning(msg, video_id=video_id) + return response + + @staticmethod + def _parse_fragment(url): + return {k: json.loads(v[0]) for k, v in compat_urlparse.parse_qs(compat_urllib_parse_urlparse(url).fragment).items()} + + +class PanoptoIE(PanoptoBaseIE): + _VALID_URL = PanoptoBaseIE.BASE_URL_RE + r'/Pages/(Viewer|Embed)\.aspx.*(?:\?|&)id=(?P<id>[a-f0-9-]+)' + _EMBED_REGEX = [rf'<iframe[^>]+src=["\'](?P<url>{PanoptoBaseIE.BASE_URL_RE}/Pages/(Viewer|Embed|Sessions/List)\.aspx[^"\']+)'] + _TESTS = [ + { + 'url': 'https://demo.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=26b3ae9e-4a48-4dcc-96ba-0befba08a0fb', + 'info_dict': { + 'id': '26b3ae9e-4a48-4dcc-96ba-0befba08a0fb', + 'title': 'Panopto for Business - Use Cases', + 'timestamp': 1459184200, + 'thumbnail': r're:https://demo\.hosted\.panopto\.com/.+', + 'upload_date': '20160328', + 'ext': 'mp4', + 'cast': [], + 'chapters': [], + 'duration': 88.17099999999999, + 'average_rating': int, + 'uploader_id': '2db6b718-47a0-4b0b-9e17-ab0b00f42b1e', + 'channel_id': 'e4c6a2fc-1214-4ca0-8fb7-aef2e29ff63a', + 'channel': 'Showcase Videos' + }, + }, + { + 'url': 'https://demo.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=ed01b077-c9e5-4c7b-b8ff-15fa306d7a59', + 'info_dict': { + 'id': 'ed01b077-c9e5-4c7b-b8ff-15fa306d7a59', + 'title': 'Overcoming Top 4 Challenges of Enterprise Video', + 'uploader': 'Panopto Support', + 'timestamp': 1449409251, + 'thumbnail': r're:https://demo\.hosted\.panopto\.com/.+', + 'upload_date': '20151206', + 'ext': 'mp4', + 'chapters': 'count:12', + 'cast': ['Panopto Support'], + 'uploader_id': 'a96d1a31-b4de-489b-9eee-b4a5b414372c', + 'average_rating': int, + 'description': 'md5:4391837802b3fc856dadf630c4b375d1', + 'duration': 1088.2659999999998, + 'channel_id': '9f3c1921-43bb-4bda-8b3a-b8d2f05a8546', + 'channel': 'Webcasts', + }, + }, + { + # Extra params in URL + 'url': 'https://howtovideos.hosted.panopto.com/Panopto/Pages/Viewer.aspx?randomparam=thisisnotreal&id=5fa74e93-3d87-4694-b60e-aaa4012214ed&advance=true', + 'info_dict': { + 'id': '5fa74e93-3d87-4694-b60e-aaa4012214ed', + 'ext': 'mp4', + 'duration': 129.513, + 'cast': ['Kathryn Kelly'], + 'uploader_id': '316a0a58-7fa2-4cd9-be1c-64270d284a56', + 'timestamp': 1569845768, + 'tags': ['Viewer', 'Enterprise'], + 'chapters': [], + 'upload_date': '20190930', + 'thumbnail': r're:https://howtovideos\.hosted\.panopto\.com/.+', + 'description': 'md5:2d844aaa1b1a14ad0e2601a0993b431f', + 'title': 'Getting Started: View a Video', + 'average_rating': int, + 'uploader': 'Kathryn Kelly', + 'channel_id': 'fb93bc3c-6750-4b80-a05b-a921013735d3', + 'channel': 'Getting Started', + } + }, + { + # Does not allow normal Viewer.aspx. AUDIO livestream has no url, so should be skipped and only give one stream. + 'url': 'https://unisa.au.panopto.com/Panopto/Pages/Embed.aspx?id=9d9a0fa3-e99a-4ebd-a281-aac2017f4da4', + 'info_dict': { + 'id': '9d9a0fa3-e99a-4ebd-a281-aac2017f4da4', + 'ext': 'mp4', + 'cast': ['LTS CLI Script'], + 'chapters': [], + 'duration': 2178.45, + 'description': 'md5:ee5cf653919f55b72bce2dbcf829c9fa', + 'channel_id': 'b23e673f-c287-4cb1-8344-aae9005a69f8', + 'average_rating': int, + 'uploader_id': '38377323-6a23-41e2-9ff6-a8e8004bf6f7', + 'uploader': 'LTS CLI Script', + 'timestamp': 1572458134, + 'title': 'WW2 Vets Interview 3 Ronald Stanley George', + 'thumbnail': r're:https://unisa\.au\.panopto\.com/.+', + 'channel': 'World War II Veteran Interviews', + 'upload_date': '20191030', + }, + }, + { + # Slides/storyboard + 'url': 'https://demo.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=a7f12f1d-3872-4310-84b0-f8d8ab15326b', + 'info_dict': { + 'id': 'a7f12f1d-3872-4310-84b0-f8d8ab15326b', + 'ext': 'mhtml', + 'timestamp': 1448798857, + 'duration': 4712.681, + 'title': 'Cache Memory - CompSci 15-213, Lecture 12', + 'channel_id': 'e4c6a2fc-1214-4ca0-8fb7-aef2e29ff63a', + 'uploader_id': 'a96d1a31-b4de-489b-9eee-b4a5b414372c', + 'upload_date': '20151129', + 'average_rating': 0, + 'uploader': 'Panopto Support', + 'channel': 'Showcase Videos', + 'description': 'md5:55e51d54233ddb0e6c2ed388ca73822c', + 'cast': ['ISR Videographer', 'Panopto Support'], + 'chapters': 'count:28', + 'thumbnail': r're:https://demo\.hosted\.panopto\.com/.+', + }, + 'params': {'format': 'mhtml', 'skip_download': True} + }, + { + 'url': 'https://na-training-1.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=8285224a-9a2b-4957-84f2-acb0000c4ea9', + 'info_dict': { + 'id': '8285224a-9a2b-4957-84f2-acb0000c4ea9', + 'ext': 'mp4', + 'chapters': [], + 'title': 'Company Policy', + 'average_rating': 0, + 'timestamp': 1615058901, + 'channel': 'Human Resources', + 'tags': ['HumanResources'], + 'duration': 1604.243, + 'thumbnail': r're:https://na-training-1\.hosted\.panopto\.com/.+', + 'uploader_id': '8e8ba0a3-424f-40df-a4f1-ab3a01375103', + 'uploader': 'Cait M.', + 'upload_date': '20210306', + 'cast': ['Cait M.'], + 'subtitles': {'en-US': [{'ext': 'srt', 'data': 'md5:a3f4d25963fdeace838f327097c13265'}], + 'es-ES': [{'ext': 'srt', 'data': 'md5:57e9dad365fd0fbaf0468eac4949f189'}]}, + }, + 'params': {'writesubtitles': True, 'skip_download': True} + }, { + # On Panopto there are two subs: "Default" and en-US. en-US is blank and should be skipped. + 'url': 'https://na-training-1.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=940cbd41-f616-4a45-b13e-aaf1000c915b', + 'info_dict': { + 'id': '940cbd41-f616-4a45-b13e-aaf1000c915b', + 'ext': 'mp4', + 'subtitles': 'count:1', + 'title': 'HR Benefits Review Meeting*', + 'cast': ['Panopto Support'], + 'chapters': [], + 'timestamp': 1575024251, + 'thumbnail': r're:https://na-training-1\.hosted\.panopto\.com/.+', + 'channel': 'Zoom', + 'description': 'md5:04f90a9c2c68b7828144abfb170f0106', + 'uploader': 'Panopto Support', + 'average_rating': 0, + 'duration': 409.34499999999997, + 'uploader_id': 'b6ac04ad-38b8-4724-a004-a851004ea3df', + 'upload_date': '20191129', + + }, + 'params': {'writesubtitles': True, 'skip_download': True} + }, + { + 'url': 'https://ucc.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=0e8484a4-4ceb-4d98-a63f-ac0200b455cb', + 'only_matching': True + }, + { + 'url': 'https://brown.hosted.panopto.com/Panopto/Pages/Embed.aspx?id=0b3ff73b-36a0-46c5-8455-aadf010a3638', + 'only_matching': True + }, + ] + + @classmethod + def suitable(cls, url): + return False if PanoptoPlaylistIE.suitable(url) else super().suitable(url) + + def _mark_watched(self, base_url, video_id, delivery_info): + duration = traverse_obj(delivery_info, ('Delivery', 'Duration'), expected_type=float) + invocation_id = delivery_info.get('InvocationId') + stream_id = traverse_obj(delivery_info, ('Delivery', 'Streams', ..., 'PublicID'), get_all=False, expected_type=str) + if invocation_id and stream_id and duration: + timestamp_str = f'/Date({calendar.timegm(datetime.now(timezone.utc).timetuple())}000)/' + data = { + 'streamRequests': [ + { + 'ClientTimeStamp': timestamp_str, + 'ID': 0, + 'InvocationID': invocation_id, + 'PlaybackSpeed': 1, + 'SecondsListened': duration - 1, + 'SecondsRejected': 0, + 'StartPosition': 0, + 'StartReason': 2, + 'StopReason': None, + 'StreamID': stream_id, + 'TimeStamp': timestamp_str, + 'UpdatesRejected': 0 + }, + ]} + + self._download_webpage( + base_url + '/Services/Analytics.svc/AddStreamRequests', video_id, + fatal=False, data=json.dumps(data).encode('utf8'), headers={'content-type': 'application/json'}, + note='Marking watched', errnote='Unable to mark watched') + + @staticmethod + def _extract_chapters(timestamps): + chapters = [] + for timestamp in timestamps or []: + caption = timestamp.get('Caption') + start, duration = int_or_none(timestamp.get('Time')), int_or_none(timestamp.get('Duration')) + if not caption or start is None or duration is None: + continue + chapters.append({ + 'start_time': start, + 'end_time': start + duration, + 'title': caption + }) + return chapters + + @staticmethod + def _extract_mhtml_formats(base_url, timestamps): + image_frags = {} + for timestamp in timestamps or []: + duration = timestamp.get('Duration') + obj_id, obj_sn = timestamp.get('ObjectIdentifier'), timestamp.get('ObjectSequenceNumber'), + if timestamp.get('EventTargetType') == 'PowerPoint' and obj_id is not None and obj_sn is not None: + image_frags.setdefault('slides', []).append({ + 'url': base_url + f'/Pages/Viewer/Image.aspx?id={obj_id}&number={obj_sn}', + 'duration': duration + }) + + obj_pid, session_id, abs_time = timestamp.get('ObjectPublicIdentifier'), timestamp.get('SessionID'), timestamp.get('AbsoluteTime') + if None not in (obj_pid, session_id, abs_time): + image_frags.setdefault('chapter', []).append({ + 'url': base_url + f'/Pages/Viewer/Thumb.aspx?eventTargetPID={obj_pid}&sessionPID={session_id}&number={obj_sn}&isPrimary=false&absoluteTime={abs_time}', + 'duration': duration, + }) + for name, fragments in image_frags.items(): + yield { + 'format_id': name, + 'ext': 'mhtml', + 'protocol': 'mhtml', + 'acodec': 'none', + 'vcodec': 'none', + 'url': 'about:invalid', + 'fragments': fragments + } + + @staticmethod + def _json2srt(data, delivery): + def _gen_lines(): + for i, line in enumerate(data): + start_time = line['Time'] + duration = line.get('Duration') + if duration: + end_time = start_time + duration + else: + end_time = traverse_obj(data, (i + 1, 'Time')) or delivery['Duration'] + yield f'{i + 1}\n{srt_subtitles_timecode(start_time)} --> {srt_subtitles_timecode(end_time)}\n{line["Caption"]}' + return '\n\n'.join(_gen_lines()) + + def _get_subtitles(self, base_url, video_id, delivery): + subtitles = {} + for lang in delivery.get('AvailableLanguages') or []: + response = self._call_api( + base_url, '/Pages/Viewer/DeliveryInfo.aspx', video_id, fatal=False, + note='Downloading captions JSON metadata', query={ + 'deliveryId': video_id, + 'getCaptions': True, + 'language': str(lang), + 'responseType': 'json' + } + ) + if not isinstance(response, list): + continue + subtitles.setdefault(self._SUB_LANG_MAPPING.get(lang) or 'default', []).append({ + 'ext': 'srt', + 'data': self._json2srt(response, delivery), + }) + return subtitles + + def _extract_streams_formats_and_subtitles(self, video_id, streams, **fmt_kwargs): + formats = [] + subtitles = {} + for stream in streams or []: + stream_formats = [] + http_stream_url = stream.get('StreamHttpUrl') + stream_url = stream.get('StreamUrl') + + if http_stream_url: + stream_formats.append({'url': http_stream_url}) + + if stream_url: + media_type = stream.get('ViewerMediaFileTypeName') + if media_type in ('hls', ): + m3u8_formats, stream_subtitles = self._extract_m3u8_formats_and_subtitles(stream_url, video_id) + stream_formats.extend(m3u8_formats) + subtitles = self._merge_subtitles(subtitles, stream_subtitles) + else: + stream_formats.append({ + 'url': stream_url + }) + for fmt in stream_formats: + fmt.update({ + 'format_note': stream.get('Tag'), + **fmt_kwargs + }) + formats.extend(stream_formats) + + return formats, subtitles + + def _real_extract(self, url): + base_url, video_id = self._match_valid_url(url).group('base_url', 'id') + delivery_info = self._call_api( + base_url, '/Pages/Viewer/DeliveryInfo.aspx', video_id, + query={ + 'deliveryId': video_id, + 'invocationId': '', + 'isLiveNotes': 'false', + 'refreshAuthCookie': 'true', + 'isActiveBroadcast': 'false', + 'isEditing': 'false', + 'isKollectiveAgentInstalled': 'false', + 'isEmbed': 'false', + 'responseType': 'json', + } + ) + + delivery = delivery_info['Delivery'] + session_start_time = int_or_none(delivery.get('SessionStartTime')) + timestamps = delivery.get('Timestamps') + + # Podcast stream is usually the combined streams. We will prefer that by default. + podcast_formats, podcast_subtitles = self._extract_streams_formats_and_subtitles( + video_id, delivery.get('PodcastStreams'), format_note='PODCAST') + + streams_formats, streams_subtitles = self._extract_streams_formats_and_subtitles( + video_id, delivery.get('Streams'), preference=-10) + + formats = podcast_formats + streams_formats + formats.extend(self._extract_mhtml_formats(base_url, timestamps)) + subtitles = self._merge_subtitles( + podcast_subtitles, streams_subtitles, self.extract_subtitles(base_url, video_id, delivery)) + + self.mark_watched(base_url, video_id, delivery_info) + + return { + 'id': video_id, + 'title': delivery.get('SessionName'), + 'cast': traverse_obj(delivery, ('Contributors', ..., 'DisplayName'), expected_type=lambda x: x or None), + 'timestamp': session_start_time - 11640000000 if session_start_time else None, + 'duration': delivery.get('Duration'), + 'thumbnail': base_url + f'/Services/FrameGrabber.svc/FrameRedirect?objectId={video_id}&mode=Delivery&random={random()}', + 'average_rating': delivery.get('AverageRating'), + 'chapters': self._extract_chapters(timestamps), + 'uploader': delivery.get('OwnerDisplayName') or None, + 'uploader_id': delivery.get('OwnerId'), + 'description': delivery.get('SessionAbstract'), + 'tags': traverse_obj(delivery, ('Tags', ..., 'Content')), + 'channel_id': delivery.get('SessionGroupPublicID'), + 'channel': traverse_obj(delivery, 'SessionGroupLongName', 'SessionGroupShortName', get_all=False), + 'formats': formats, + 'subtitles': subtitles + } + + +class PanoptoPlaylistIE(PanoptoBaseIE): + _VALID_URL = PanoptoBaseIE.BASE_URL_RE + r'/Pages/(Viewer|Embed)\.aspx.*(?:\?|&)pid=(?P<id>[a-f0-9-]+)' + _TESTS = [ + { + 'url': 'https://howtovideos.hosted.panopto.com/Panopto/Pages/Viewer.aspx?pid=f3b39fcf-882f-4849-93d6-a9f401236d36&id=5fa74e93-3d87-4694-b60e-aaa4012214ed&advance=true', + 'info_dict': { + 'title': 'Featured Video Tutorials', + 'id': 'f3b39fcf-882f-4849-93d6-a9f401236d36', + 'description': '', + }, + 'playlist_mincount': 36 + }, + { + 'url': 'https://utsa.hosted.panopto.com/Panopto/Pages/Viewer.aspx?pid=e2900555-3ad4-4bdb-854d-ad2401686190', + 'info_dict': { + 'title': 'Library Website Introduction Playlist', + 'id': 'e2900555-3ad4-4bdb-854d-ad2401686190', + 'description': 'md5:f958bca50a1cbda15fdc1e20d32b3ecb', + }, + 'playlist_mincount': 4 + }, + + ] + + def _entries(self, base_url, playlist_id, session_list_id): + session_list_info = self._call_api( + base_url, f'/Api/SessionLists/{session_list_id}?collections[0].maxCount=500&collections[0].name=items', playlist_id) + + items = session_list_info['Items'] + for item in items: + if item.get('TypeName') != 'Session': + self.report_warning('Got an item in the playlist that is not a Session' + bug_reports_message(), only_once=True) + continue + yield { + '_type': 'url', + 'id': item.get('Id'), + 'url': item.get('ViewerUri'), + 'title': item.get('Name'), + 'description': item.get('Description'), + 'duration': item.get('Duration'), + 'channel': traverse_obj(item, ('Parent', 'Name')), + 'channel_id': traverse_obj(item, ('Parent', 'Id')) + } + + def _real_extract(self, url): + base_url, playlist_id = self._match_valid_url(url).group('base_url', 'id') + + video_id = get_first(parse_qs(url), 'id') + if video_id: + if self.get_param('noplaylist'): + self.to_screen('Downloading just video %s because of --no-playlist' % video_id) + return self.url_result(base_url + f'/Pages/Viewer.aspx?id={video_id}', ie_key=PanoptoIE.ie_key(), video_id=video_id) + else: + self.to_screen(f'Downloading playlist {playlist_id}; add --no-playlist to just download video {video_id}') + + playlist_info = self._call_api(base_url, f'/Api/Playlists/{playlist_id}', playlist_id) + return self.playlist_result( + self._entries(base_url, playlist_id, playlist_info['SessionListId']), + playlist_id=playlist_id, playlist_title=playlist_info.get('Name'), + playlist_description=playlist_info.get('Description')) + + +class PanoptoListIE(PanoptoBaseIE): + _VALID_URL = PanoptoBaseIE.BASE_URL_RE + r'/Pages/Sessions/List\.aspx' + _PAGE_SIZE = 250 + _TESTS = [ + { + 'url': 'https://demo.hosted.panopto.com/Panopto/Pages/Sessions/List.aspx#folderID=%22e4c6a2fc-1214-4ca0-8fb7-aef2e29ff63a%22', + 'info_dict': { + 'id': 'e4c6a2fc-1214-4ca0-8fb7-aef2e29ff63a', + 'title': 'Showcase Videos' + }, + 'playlist_mincount': 140 + + }, + { + 'url': 'https://demo.hosted.panopto.com/Panopto/Pages/Sessions/List.aspx#view=2&maxResults=250', + 'info_dict': { + 'id': 'panopto_list', + 'title': 'panopto_list' + }, + 'playlist_mincount': 300 + }, + { + # Folder that contains 8 folders and a playlist + 'url': 'https://howtovideos.hosted.panopto.com/Panopto/Pages/Sessions/List.aspx?noredirect=true#folderID=%224b9de7ae-0080-4158-8496-a9ba01692c2e%22', + 'info_dict': { + 'id': '4b9de7ae-0080-4158-8496-a9ba01692c2e', + 'title': 'Video Tutorials' + }, + 'playlist_mincount': 9 + } + + ] + + def _fetch_page(self, base_url, query_params, display_id, page): + + params = { + 'sortColumn': 1, + 'getFolderData': True, + 'includePlaylists': True, + **query_params, + 'page': page, + 'maxResults': self._PAGE_SIZE, + } + + response = self._call_api( + base_url, '/Services/Data.svc/GetSessions', f'{display_id} page {page + 1}', + data={'queryParameters': params}, fatal=False) + + for result in get_first(response, 'Results', default=[]): + # This could be a video, playlist (or maybe something else) + item_id = result.get('DeliveryID') + yield { + '_type': 'url', + 'id': item_id, + 'title': result.get('SessionName'), + 'url': traverse_obj(result, 'ViewerUrl', 'EmbedUrl', get_all=False) or (base_url + f'/Pages/Viewer.aspx?id={item_id}'), + 'duration': result.get('Duration'), + 'channel': result.get('FolderName'), + 'channel_id': result.get('FolderID'), + } + + for folder in get_first(response, 'Subfolders', default=[]): + folder_id = folder.get('ID') + yield self.url_result( + base_url + f'/Pages/Sessions/List.aspx#folderID="{folder_id}"', + ie_key=PanoptoListIE.ie_key(), video_id=folder_id, title=folder.get('Name')) + + def _extract_folder_metadata(self, base_url, folder_id): + response = self._call_api( + base_url, '/Services/Data.svc/GetFolderInfo', folder_id, + data={'folderID': folder_id}, fatal=False) + return { + 'title': get_first(response, 'Name') + } + + def _real_extract(self, url): + mobj = self._match_valid_url(url) + base_url = mobj.group('base_url') + + query_params = self._parse_fragment(url) + folder_id, display_id = query_params.get('folderID'), 'panopto_list' + + if query_params.get('isSubscriptionsPage'): + display_id = 'subscriptions' + if not query_params.get('subscribableTypes'): + query_params['subscribableTypes'] = [0, 1, 2] + elif query_params.get('isSharedWithMe'): + display_id = 'sharedwithme' + elif folder_id: + display_id = folder_id + + query = query_params.get('query') + if query: + display_id += f': query "{query}"' + + info = { + '_type': 'playlist', + 'id': display_id, + 'title': display_id, + } + if folder_id: + info.update(self._extract_folder_metadata(base_url, folder_id)) + + info['entries'] = OnDemandPagedList( + functools.partial(self._fetch_page, base_url, query_params, display_id), self._PAGE_SIZE) + + return info |