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[jsinterp] Fix division (#7279)
* Fixes nsig decryption for Youtube JS player `8c7583ff` Authored by: bashonly
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@ -28,6 +28,13 @@ def test_basic(self):
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def test_calc(self):
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def test_calc(self):
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self._test('function f(a){return 2*a+1;}', 7, args=[3])
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self._test('function f(a){return 2*a+1;}', 7, args=[3])
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def test_div(self):
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jsi = JSInterpreter('function f(a, b){return a / b;}')
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self.assertTrue(math.isnan(jsi.call_function('f', 0, 0)))
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self.assertTrue(math.isnan(jsi.call_function('f', JS_Undefined, 1)))
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self.assertTrue(math.isinf(jsi.call_function('f', 2, 0)))
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self.assertEqual(jsi.call_function('f', 0, 3), 0)
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def test_empty_return(self):
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def test_empty_return(self):
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self._test('function f(){return; y()}', None)
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self._test('function f(){return; y()}', None)
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@ -150,6 +150,10 @@
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'https://www.youtube.com/s/player/cfa9e7cb/player_ias.vflset/en_US/base.js',
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'https://www.youtube.com/s/player/cfa9e7cb/player_ias.vflset/en_US/base.js',
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'aCi3iElgd2kq0bxVbQ', 'QX1y8jGb2IbZ0w',
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'aCi3iElgd2kq0bxVbQ', 'QX1y8jGb2IbZ0w',
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),
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),
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(
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'https://www.youtube.com/s/player/8c7583ff/player_ias.vflset/en_US/base.js',
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'1wWCVpRR96eAmMI87L', 'KSkWAVv1ZQxC3A',
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),
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]
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]
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@ -44,7 +44,7 @@ def wrapped(a, b):
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def _js_div(a, b):
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def _js_div(a, b):
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if JS_Undefined in (a, b) or not (a and b):
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if JS_Undefined in (a, b) or not (a or b):
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return float('nan')
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return float('nan')
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return (a or 0) / b if b else float('inf')
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return (a or 0) / b if b else float('inf')
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