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YoutubeIE: add algo for length 90 (closes #1064)

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Order the cases from higher to lower length.
This commit is contained in:
Jaime Marquínez Ferrándiz 2013-07-18 12:24:16 +02:00
parent 2aea08eda1
commit 444b116597
3 changed files with 18 additions and 8 deletions
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8
youtube_dl/extractor/youtube.py
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@ -179,7 +179,11 @@ class YoutubeIE(InfoExtractor):
def _decrypt_signature(self, s):
"""Turn the encrypted s field into a working signature"""
if len(s) == 88:
if len(s) == 92:
return s[25] + s[3:25] + s[0] + s[26:42] + s[79] + s[43:79] + s[91] + s[80:83]
elif len(s) == 90:
return s[25] + s[3:25] + s[2] + s[26:40] + s[77] + s[41:77] + s[89] + s[78:81]
elif len(s) == 88:
return s[48] + s[81:67:-1] + s[82] + s[66:62:-1] + s[85] + s[61:48:-1] + s[67] + s[47:12:-1] + s[3] + s[11:3:-1] + s[2] + s[12]
elif len(s) == 87:
return s[62] + s[82:62:-1] + s[83] + s[61:52:-1] + s[0] + s[51:2:-1]
@ -195,8 +199,6 @@ class YoutubeIE(InfoExtractor):
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]
elif len(s) == 92:
return s[25] + s[3:25] + s[0] + s[26:42] + s[79] + s[43:79] + s[91] + s[80:83];
else:
raise ExtractorError(u'Unable to decrypt signature, key length %d not supported; retrying might work' % (len(s)))