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33 lines
1.2 KiB
Python
33 lines
1.2 KiB
Python
import json
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from zerver.lib.json_encoder_for_html import JSONEncoderForHTML
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from zerver.lib.test_classes import ZulipTestCase
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class TestJSONEncoder(ZulipTestCase):
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# Test EncoderForHTML
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# Taken from
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# https://github.com/simplejson/simplejson/blob/8edc82afcf6f7512b05fba32baa536fe756bd273/simplejson/tests/test_encode_for_html.py
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# License: MIT
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decoder = json.JSONDecoder()
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encoder = JSONEncoderForHTML()
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def test_basic_encode(self) -> None:
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self.assertEqual(r'"\u0026"', self.encoder.encode('&'))
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self.assertEqual(r'"\u003c"', self.encoder.encode('<'))
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self.assertEqual(r'"\u003e"', self.encoder.encode('>'))
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def test_basic_roundtrip(self) -> None:
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for char in '&<>':
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self.assertEqual(
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char, self.decoder.decode(
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self.encoder.encode(char)))
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def test_prevent_script_breakout(self) -> None:
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bad_string = '</script><script>alert("gotcha")</script>'
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self.assertEqual(
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r'"\u003c/script\u003e\u003cscript\u003e'
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r'alert(\"gotcha\")\u003c/script\u003e"',
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self.encoder.encode(bad_string))
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self.assertEqual(
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bad_string, self.decoder.decode(
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self.encoder.encode(bad_string)))
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