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[ie/dacast] Fix HLS AES formats extraction

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Authored by: bashonly
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bashonly 2024-11-25 21:34:15 -06:00
parent 4b5eec0aaa
commit bc5fb3b132
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GPG Key ID: 783F096F253D15B0
1 changed files with 21 additions and 2 deletions
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23
yt_dlp/extractor/dacast.py
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@ -1,3 +1,4 @@
import functools
import hashlib
import re
import time
@ -51,6 +52,15 @@ class DacastVODIE(DacastBaseIE):
'thumbnail': 'https://universe-files.dacast.com/26137208-5858-65c1-5e9a-9d6b6bd2b6c2',
},
'params': {'skip_download': 'm3u8'},
}, { # /uspaes/ in hls_url
'url': 'https://iframe.dacast.com/vod/f9823fc6-faba-b98f-0d00-4a7b50a58c5b/348c5c84-b6af-4859-bb9d-1d01009c795b',
'info_dict': {
'id': '348c5c84-b6af-4859-bb9d-1d01009c795b',
'ext': 'mp4',
'title': 'pl1-edyta-rubas-211124.mp4',
'uploader_id': 'f9823fc6-faba-b98f-0d00-4a7b50a58c5b',
'thumbnail': 'https://universe-files.dacast.com/4d0bd042-a536-752d-fc34-ad2fa44bbcbb.png',
},
}]
_WEBPAGE_TESTS = [{
'url': 'https://www.dacast.com/support/knowledgebase/how-can-i-embed-a-video-on-my-website/',
@ -74,6 +84,15 @@ class DacastVODIE(DacastBaseIE):
'params': {'skip_download': 'm3u8'},
}]
@functools.cached_property
def _usp_signing_secret(self):
player_js = self._download_webpage(
'https://player.dacast.com/js/player.js', None, 'Downloading player JS')
# Rotates every so often, but hardcode a fallback in case of JS change/breakage before rotation
return self._search_regex(
r'\bUSP_SIGNING_SECRET\s*=\s*(["\'])(?P<secret>(?:(?!\1).)+)', player_js,
'usp signing secret', group='secret', fatal=False) or 'odnInCGqhvtyRTtIiddxtuRtawYYICZP'
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'}
@ -94,10 +113,10 @@ def _real_extract(self, url):
if 'DRM_EXT' in hls_url:
self.report_drm(video_id)
elif '/uspaes/' in hls_url:
# From https://player.dacast.com/js/player.js
# Ref: https://player.dacast.com/js/player.js
ts = int(time.time())
signature = hashlib.sha1(
f'{10413792000 - ts}{ts}YfaKtquEEpDeusCKbvYszIEZnWmBcSvw').digest().hex()
f'{10413792000 - ts}{ts}{self._usp_signing_secret}'.encode()).digest().hex()
hls_aes['uri'] = f'https://keys.dacast.com/uspaes/{video_id}.key?s={signature}&ts={ts}'
for retry in self.RetryManager():