elif len(s) == 87:
return s[4:23] + s[86] + s[24:85]
elif len(s) == 86:
- return s[2:63] + s[82] + s[64:82] + s[63]
+ return s[83:85] + s[26] + s[79:46:-1] + s[85] + s[45:36:-1] + s[30] + s[35:30:-1] + s[46] + s[29:26:-1] + s[82] + s[25:1:-1]
elif len(s) == 85:
return s[2:8] + s[0] + s[9:21] + s[65] + s[22:65] + s[84] + s[66:82] + s[21]
elif len(s) == 84:
elif len(s) == 82:
return s[36] + s[79:67:-1] + s[81] + s[66:40:-1] + s[33] + s[39:36:-1] + s[40] + s[35] + s[0] + s[67] + s[32:0:-1] + s[34]
elif len(s) == 81:
- return s[6] + s[3:6] + s[33] + s[7:24] + s[0] + s[25:33] + s[2] + s[34:53] + s[24] + s[54:81]
+ return s[56] + s[79:56:-1] + s[41] + s[55:41:-1] + s[80] + s[40:34:-1] + s[0] + s[33:29:-1] + s[34] + s[28:9:-1] + s[29] + s[8:0:-1] + s[9]
+ elif len(s) == 79:
+ return s[54] + s[77:54:-1] + s[39] + s[53:39:-1] + s[78] + s[38:34:-1] + s[0] + s[33:29:-1] + s[34] + s[28:9:-1] + s[29] + s[8:0:-1] + s[9]
else:
raise ExtractorError(u'Unable to decrypt signature, key length %d not supported; retrying might work' % (len(s)))
+ def _decrypt_signature_age_gate(self, s):
+ # The videos with age protection use another player, so the algorithms
+ # can be different.
+ if len(s) == 86:
+ return s[2:63] + s[82] + s[64:82] + s[63]
+ else:
+ # Fallback to the other algortihms
+ self._decrypt_signature(s)
+
+
def _get_available_subtitles(self, video_id):
self.report_video_subtitles_download(video_id)
request = compat_urllib_request.Request('http://video.google.com/timedtext?hl=en&type=list&v=%s' % video_id)
parts_sizes = u'.'.join(compat_str(len(part)) for part in s.split('.'))
self.to_screen(u'encrypted signature length %d (%s), itag %s, %s' %
(len(s), parts_sizes, url_data['itag'][0], player))
- signature = self._decrypt_signature(url_data['s'][0])
+ encrypted_sig = url_data['s'][0]
+ if age_gate:
+ signature = self._decrypt_signature_age_gate(encrypted_sig)
+ else:
+ signature = self._decrypt_signature(encrypted_sig)
url += '&signature=' + signature
if 'ratebypass' not in url:
url += '&ratebypass=yes'