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yt-dlp/yt_dlp/extractor/dacast.py

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import hashlib
import re
import time
from .common import InfoExtractor
from ..networking.exceptions import HTTPError
from ..utils import (
ExtractorError,
classproperty,
float_or_none,
traverse_obj,
url_or_none,
)
class DacastBaseIE(InfoExtractor):
_URL_TYPE = None
@classproperty
def _VALID_URL(cls):
return fr'https?://iframe\.dacast\.com/{cls._URL_TYPE}/(?P<user_id>[\w-]+)/(?P<id>[\w-]+)'
@classproperty
def _EMBED_REGEX(cls):
return [rf'<iframe[^>]+\bsrc=["\'](?P<url>{cls._VALID_URL})']
_API_INFO_URL = 'https://playback.dacast.com/content/info'
@classmethod
def _get_url_from_id(cls, content_id):
user_id, media_id = content_id.split(f'-{cls._URL_TYPE}-')
return f'https://iframe.dacast.com/{cls._URL_TYPE}/{user_id}/{media_id}'
@classmethod
def _extract_embed_urls(cls, url, webpage):
yield from super()._extract_embed_urls(url, webpage)
for content_id in re.findall(
rf'<script[^>]+\bsrc=["\']https://player\.dacast\.com/js/player\.js\?contentId=([\w-]+-{cls._URL_TYPE}-[\w-]+)["\']', webpage):
yield cls._get_url_from_id(content_id)
class DacastVODIE(DacastBaseIE):
_URL_TYPE = 'vod'
_TESTS = [{
'url': 'https://iframe.dacast.com/vod/acae82153ef4d7a7344ae4eaa86af534/1c6143e3-5a06-371d-8695-19b96ea49090',
'info_dict': {
'id': '1c6143e3-5a06-371d-8695-19b96ea49090',
'ext': 'mp4',
'uploader_id': 'acae82153ef4d7a7344ae4eaa86af534',
'title': '2_4||Adnexal mass characterisation: O-RADS US and MRI||N. Bharwani, London/UK',
'thumbnail': 'https://universe-files.dacast.com/26137208-5858-65c1-5e9a-9d6b6bd2b6c2',
},
'params': {'skip_download': 'm3u8'},
}]
_WEBPAGE_TESTS = [{
'url': 'https://www.dacast.com/support/knowledgebase/how-can-i-embed-a-video-on-my-website/',
'info_dict': {
'id': 'b6674869-f08a-23c5-1d7b-81f5309e1a90',
'ext': 'mp4',
'title': '4-HowToEmbedVideo.mp4',
'uploader_id': '3b67c4a9-3886-4eb1-d0eb-39b23b14bef3',
'thumbnail': 'https://universe-files.dacast.com/d26ab48f-a52a-8783-c42e-a90290ba06b6.png',
},
'params': {'skip_download': 'm3u8'},
}, {
'url': 'https://gist.githubusercontent.com/bashonly/4ad249ef2910346fbdf3809b220f11ee/raw/87349778d4af1a80b1fcc3beb9c88108de5858f5/dacast_embeds.html',
'info_dict': {
'id': 'e7df418e-a83b-7a7f-7b5e-1a667981e8fa',
'ext': 'mp4',
'title': 'Evening Service 2-5-23',
'uploader_id': '943bb1ab3c03695ba85330d92d6d226e',
'thumbnail': 'https://universe-files.dacast.com/337472b3-e92c-2ea4-7eb7-5700da477f67',
},
'params': {'skip_download': 'm3u8'},
}]
def _real_extract(self, url):
user_id, video_id = self._match_valid_url(url).group('user_id', 'id')
query = {'contentId': f'{user_id}-vod-{video_id}', 'provider': 'universe'}
info = self._download_json(self._API_INFO_URL, video_id, query=query, fatal=False)
access = self._download_json(
'https://playback.dacast.com/content/access', video_id,
note='Downloading access JSON', query=query, expected_status=403)
error = access.get('error')
if error in ('Broadcaster has been blocked', 'Content is offline'):
raise ExtractorError(error, expected=True)
elif error:
raise ExtractorError(f'Dacast API says "{error}"')
hls_url = access['hls']
hls_aes = {}
if 'DRM_EXT' in hls_url:
self.report_drm(video_id)
elif '/uspaes/' in hls_url:
# From https://player.dacast.com/js/player.js
ts = int(time.time())
signature = hashlib.sha1(
f'{10413792000 - ts}{ts}YfaKtquEEpDeusCKbvYszIEZnWmBcSvw').digest().hex()
hls_aes['uri'] = f'https://keys.dacast.com/uspaes/{video_id}.key?s={signature}&ts={ts}'
for retry in self.RetryManager():
try:
formats = self._extract_m3u8_formats(hls_url, video_id, 'mp4', m3u8_id='hls')
except ExtractorError as e:
# CDN will randomly respond with 403
if isinstance(e.cause, HTTPError) and e.cause.status == 403:
retry.error = e
continue
raise
return {
'id': video_id,
'uploader_id': user_id,
'formats': formats,
'hls_aes': hls_aes or None,
**traverse_obj(info, ('contentInfo', {
'title': 'title',
'duration': ('duration', {float_or_none}),
'thumbnail': ('thumbnailUrl', {url_or_none}),
})),
}
class DacastPlaylistIE(DacastBaseIE):
_URL_TYPE = 'playlist'
_TESTS = [{
'url': 'https://iframe.dacast.com/playlist/943bb1ab3c03695ba85330d92d6d226e/b632eb053cac17a9c9a02bcfc827f2d8',
'playlist_mincount': 28,
'info_dict': {
'id': 'b632eb053cac17a9c9a02bcfc827f2d8',
'title': 'Archive Sermons',
},
}]
_WEBPAGE_TESTS = [{
'url': 'https://gist.githubusercontent.com/bashonly/7efb606f49f3c6e07ea0327de5a661d1/raw/05a16eac830245ea301fb0a585023bec71e6093c/dacast_playlist_embed.html',
'playlist_mincount': 28,
'info_dict': {
'id': 'b632eb053cac17a9c9a02bcfc827f2d8',
'title': 'Archive Sermons',
},
}]
def _real_extract(self, url):
user_id, playlist_id = self._match_valid_url(url).group('user_id', 'id')
info = self._download_json(
self._API_INFO_URL, playlist_id, note='Downloading playlist JSON', query={
'contentId': f'{user_id}-playlist-{playlist_id}',
'provider': 'universe',
})['contentInfo']
def entries(info):
for video in traverse_obj(info, ('features', 'playlist', 'contents', lambda _, v: v['id'])):
yield self.url_result(
DacastVODIE._get_url_from_id(video['id']), DacastVODIE, video['id'], video.get('title'))
return self.playlist_result(entries(info), playlist_id, info.get('title'))