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[jsinterp] Improve zeroise (#12313)

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Authored by: seproDev
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sepro 2025-02-09 22:37:23 +01:00 committed by GitHub
parent 241ace4f10
commit 4ca8c44a07
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3 changed files with 15 additions and 1 deletions
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10
test/test_jsinterp.py
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@ -93,6 +93,16 @@ class TestJSInterpreter(unittest.TestCase):
self._test('function f(){return 0 ?? 42;}', 0) self._test('function f(){return 0 ?? 42;}', 0)
self._test('function f(){return "life, the universe and everything" < 42;}', False) self._test('function f(){return "life, the universe and everything" < 42;}', False)
self._test('function f(){return 0 - 7 * - 6;}', 42) self._test('function f(){return 0 - 7 * - 6;}', 42)
self._test('function f(){return true << "5";}', 32)
self._test('function f(){return true << true;}', 2)
self._test('function f(){return "19" & "21.9";}', 17)
self._test('function f(){return "19" & false;}', 0)
self._test('function f(){return "11.0" >> "2.1";}', 2)
self._test('function f(){return 5 ^ 9;}', 12)
self._test('function f(){return 0.0 << NaN}', 0)
self._test('function f(){return null << undefined}', 0)
# TODO: Does not work due to number too large
# self._test('function f(){return 21 << 4294967297}', 42)
def test_array_access(self): def test_array_access(self):
self._test('function f(){var x = [1,2,3]; x[0] = 4; x[0] = 5; x[2.0] = 7; return x;}', [5, 2, 7]) self._test('function f(){var x = [1,2,3]; x[0] = 4; x[0] = 5; x[2.0] = 7; return x;}', [5, 2, 7])

4
test/test_youtube_signature.py
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@ -201,6 +201,10 @@ _NSIG_TESTS = [
'https://www.youtube.com/s/player/2f1832d2/player_ias.vflset/en_US/base.js', 'https://www.youtube.com/s/player/2f1832d2/player_ias.vflset/en_US/base.js',
'YWt1qdbe8SAfkoPHW5d', 'RrRjWQOJmBiP', 'YWt1qdbe8SAfkoPHW5d', 'RrRjWQOJmBiP',
), ),
(
'https://www.youtube.com/s/player/9c6dfc4a/player_ias.vflset/en_US/base.js',
'jbu7ylIosQHyJyJV', 'uwI0ESiynAmhNg',
),
] ]

2
yt_dlp/jsinterp.py
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@ -25,7 +25,7 @@ def _js_bit_op(op):
with contextlib.suppress(TypeError): with contextlib.suppress(TypeError):
if math.isnan(x): # NB: NaN cannot be checked by membership if math.isnan(x): # NB: NaN cannot be checked by membership
return 0 return 0
return x return int(float(x))
def wrapped(a, b): def wrapped(a, b):
return op(zeroise(a), zeroise(b)) & 0xffffffff return op(zeroise(a), zeroise(b)) & 0xffffffff