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bpo-27397: Make email module properly handle invalid-length base64 strings (#7583)

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When attempting to base64-decode a payload of invalid length (1 mod 4),
properly recognize and handle it.  The given data will be returned as-is,
i.e. not decoded, along with a new defect, InvalidBase64LengthDefect.
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Tal Einat 2018-06-12 15:46:22 +03:00 • committed by GitHub
parent 5a98209180
commit c3f55be7dd
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7 changed files with 70 additions and 18 deletions
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9
Lib/test/test_email/test__header_value_parser.py
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@ -347,6 +347,15 @@ class TestParser(TestParserMixin, TestEmailBase):
errors.InvalidBase64PaddingDefect],
'')
def test_get_unstructured_invalid_base64_length(self):
# bpo-27397: Return the encoded string since there's no way to decode.
self._test_get_x(self._get_unst,
'=?utf-8?b?abcde?=',
'abcde',
'abcde',
[errors.InvalidBase64LengthDefect],
'')
def test_get_unstructured_no_whitespace_between_ews(self):
self._test_get_x(self._get_unst,
'=?utf-8?q?foo?==?utf-8?q?bar?=',