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[YouTube] Fix KeyError QV in signature extraction failed

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* temporarily force missing global definition into sig JS
* improve test: thanks https://github.com/yt-dlp/yt-dlp/issues/7327#issuecomment-1595274615
* resolves #32314
This commit is contained in:
dirkf 2023-06-17 15:36:39 +01:00
parent d6433cbb2c
commit ae8ba2c319
2 changed files with 11 additions and 2 deletions
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7
test/test_youtube_signature.py
View file

@ -63,6 +63,11 @@ _SIG_TESTS = [
'https://s.ytimg.com/yts/jsbin/html5player-en_US-vflKjOTVq/html5player.js', 'https://s.ytimg.com/yts/jsbin/html5player-en_US-vflKjOTVq/html5player.js',
'312AA52209E3623129A412D56A40F11CB0AF14AE.3EE09501CB14E3BCDC3B2AE808BF3F1D14E7FBF12', '312AA52209E3623129A412D56A40F11CB0AF14AE.3EE09501CB14E3BCDC3B2AE808BF3F1D14E7FBF12',
'112AA5220913623229A412D56A40F11CB0AF14AE.3EE0950FCB14EEBCDC3B2AE808BF331D14E7FBF3', '112AA5220913623229A412D56A40F11CB0AF14AE.3EE0950FCB14EEBCDC3B2AE808BF331D14E7FBF3',
),
(
'https://www.youtube.com/s/player/6ed0d907/player_ias.vflset/en_US/base.js',
'2aq0aqSyOoJXtK73m-uME_jv7-pT15gOFC02RFkGMqWpzEICs69VdbwQ0LDp1v7j8xx92efCJlYFYb1sUkkBSPOlPmXgIARw8JQ0qOAOAA',
'AOq0QJ8wRAIgXmPlOPSBkkUs1bYFYlJCfe29xx8j7v1pDL2QwbdV96sCIEzpWqMGkFR20CFOg51Tp-7vj_EMu-m37KtXJoOySqa0',
) )
] ]
@ -231,7 +236,7 @@ def n_sig(jscode, sig_input):
make_sig_test = t_factory( make_sig_test = t_factory(
'signature', signature, re.compile(r'.*-(?P<id>[a-zA-Z0-9_-]+)(?:/watch_as3|/html5player)?\.[a-z]+$')) 'signature', signature, re.compile(r'(?s).*(?:-|/player/)(?P<id>[a-zA-Z0-9_-]+)(?:/.+\.js|(?:/watch_as3|/html5player)?\.[a-z]+)$'))
for test_spec in _SIG_TESTS: for test_spec in _SIG_TESTS:
make_sig_test(*test_spec) make_sig_test(*test_spec)

6
youtube_dl/extractor/youtube.py
View file

@ -1569,8 +1569,12 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
r'\bc\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*\([^)]*\)\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\('), r'\bc\s*&&\s*[a-zA-Z0-9]+\.set\([^,]+\s*,\s*\([^)]*\)\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\('),
jscode, 'Initial JS player signature function name', group='sig') jscode, 'Initial JS player signature function name', group='sig')
jsi = JSInterpreter(jscode) # temporary (please) hack for player 6ed0d907 #32314
ah = 'var AH={LR:function(a,b){var c=a[0];a[0]=a[b%a.length];a[b%a.length]=c},QV:function(a){a.reverse()},pO:function(a,b){a.splice(0,b)}};'
jsi = JSInterpreter(ah + jscode)
initial_function = jsi.extract_function(funcname) initial_function = jsi.extract_function(funcname)
return lambda s: initial_function([s]) return lambda s: initial_function([s])
def _decrypt_signature(self, s, video_id, player_url): def _decrypt_signature(self, s, video_id, player_url):