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[youtube] Extract SAPISID only once

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pukkandan 2021-08-02 08:00:08 +05:30
parent 1bd3639f69
commit cf87314d4e
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1 changed files with 21 additions and 14 deletions
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23
yt_dlp/extractor/youtube.py
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@ -536,24 +536,31 @@ def _extract_context(self, ytcfg=None, default_client='web'):
context['client']['visitorData'] = visitor_data context['client']['visitorData'] = visitor_data
return context return context
_SAPISID = None
def _generate_sapisidhash_header(self, origin='https://www.youtube.com'): def _generate_sapisidhash_header(self, origin='https://www.youtube.com'):
time_now = round(time.time())
if self._SAPISID is None:
yt_cookies = self._get_cookies('https://www.youtube.com')
# Sometimes SAPISID cookie isn't present but __Secure-3PAPISID is. # Sometimes SAPISID cookie isn't present but __Secure-3PAPISID is.
# See: https://github.com/yt-dlp/yt-dlp/issues/393 # See: https://github.com/yt-dlp/yt-dlp/issues/393
yt_cookies = self._get_cookies('https://www.youtube.com')
sapisid_cookie = dict_get( sapisid_cookie = dict_get(
yt_cookies, ('__Secure-3PAPISID', 'SAPISID')) yt_cookies, ('__Secure-3PAPISID', 'SAPISID'))
if sapisid_cookie is None or not sapisid_cookie.value: if sapisid_cookie and sapisid_cookie.value:
return self._SAPISID = sapisid_cookie.value
time_now = round(time.time()) self.write_debug('Extracted SAPISID cookie')
# SAPISID cookie is required if not already present # SAPISID cookie is required if not already present
if not yt_cookies.get('SAPISID'): if not yt_cookies.get('SAPISID'):
self.write_debug('Copying __Secure-3PAPISID cookie to SAPISID cookie', only_once=True) self.write_debug('Copying __Secure-3PAPISID cookie to SAPISID cookie')
self._set_cookie( self._set_cookie(
'.youtube.com', 'SAPISID', sapisid_cookie.value, secure=True, expire_time=time_now + 3600) '.youtube.com', 'SAPISID', self._SAPISID, secure=True, expire_time=time_now + 3600)
self.write_debug('Extracted SAPISID cookie', only_once=True) else:
self._SAPISID = False
if not self._SAPISID:
return None
# SAPISIDHASH algorithm from https://stackoverflow.com/a/32065323 # SAPISIDHASH algorithm from https://stackoverflow.com/a/32065323
sapisidhash = hashlib.sha1( sapisidhash = hashlib.sha1(
f'{time_now} {sapisid_cookie.value} {origin}'.encode('utf-8')).hexdigest() f'{time_now} {self._SAPISID} {origin}'.encode('utf-8')).hexdigest()
return f'SAPISIDHASH {time_now}_{sapisidhash}' return f'SAPISIDHASH {time_now}_{sapisidhash}'
def _call_api(self, ep, query, video_id, fatal=True, headers=None, def _call_api(self, ep, query, video_id, fatal=True, headers=None,