import re from .common import InfoExtractor from ..utils import ( determine_ext, float_or_none, int_or_none, parse_filesize, ) class LibraryOfCongressIE(InfoExtractor): IE_NAME = 'loc' IE_DESC = 'Library of Congress' _VALID_URL = r'https?://(?:www\.)?loc\.gov/(?:item/|today/cyberlc/feature_wdesc\.php\?.*\brec=)(?P[0-9a-z_.]+)' _TESTS = [{ # embedded via
.+?)\1', r']+id=(["\'])uuid-(?P.+?)\1', r']+data-uuid=(["\'])(?P.+?)\1', r'mediaObjectId\s*:\s*(["\'])(?P.+?)\1', r'data-tab="share-media-(?P[0-9A-F]{32})"'), webpage, 'media id', group='id') data = self._download_json( f'https://media.loc.gov/services/v1/media?id={media_id}&context=json', media_id)['mediaObject'] derivative = data['derivatives'][0] media_url = derivative['derivativeUrl'] title = derivative.get('shortName') or data.get('shortName') or self._og_search_title( webpage) # Following algorithm was extracted from setAVSource js function # found in webpage media_url = media_url.replace('rtmp', 'https') is_video = data.get('mediaType', 'v').lower() == 'v' ext = determine_ext(media_url) if ext not in ('mp4', 'mp3'): media_url += '.mp4' if is_video else '.mp3' formats = [] if '/vod/mp4:' in media_url: formats.append({ 'url': media_url.replace('/vod/mp4:', '/hls-vod/media/') + '.m3u8', 'format_id': 'hls', 'ext': 'mp4', 'protocol': 'm3u8_native', 'quality': 1, }) http_format = { 'url': re.sub(r'(://[^/]+/)(?:[^/]+/)*(?:mp4|mp3):', r'\1', media_url), 'format_id': 'http', 'quality': 1, } if not is_video: http_format['vcodec'] = 'none' formats.append(http_format) download_urls = set() for m in re.finditer( r']+value=(["\'])(?P.+?)\1[^>]+data-file-download=[^>]+>\s*(?P.+?)(?:(?: |\s+)\((?P.+?)\))?\s*<', webpage): format_id = m.group('id').lower() if format_id in ('gif', 'jpeg'): continue download_url = m.group('url') if download_url in download_urls: continue download_urls.add(download_url) formats.append({ 'url': download_url, 'format_id': format_id, 'filesize_approx': parse_filesize(m.group('size')), }) duration = float_or_none(data.get('duration')) view_count = int_or_none(data.get('viewCount')) subtitles = {} cc_url = data.get('ccUrl') if cc_url: subtitles.setdefault('en', []).append({ 'url': cc_url, 'ext': 'ttml', }) return { 'id': video_id, 'title': title, 'thumbnail': self._og_search_thumbnail(webpage, default=None), 'duration': duration, 'view_count': view_count, 'formats': formats, 'subtitles': subtitles, }