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109 lines
4 KiB
Python
109 lines
4 KiB
Python
import sys
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import unittest
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try:
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import crypt
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IMPORT_ERROR = None
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except ImportError as ex:
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if sys.platform != 'win32':
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raise unittest.SkipTest(str(ex))
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crypt = None
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IMPORT_ERROR = str(ex)
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@unittest.skipUnless(sys.platform == 'win32', 'This should only run on windows')
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@unittest.skipIf(crypt, 'import succeeded')
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class TestWhyCryptDidNotImport(unittest.TestCase):
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def test_import_failure_message(self):
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self.assertIn('not supported', IMPORT_ERROR)
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@unittest.skipUnless(crypt, 'crypt module is required')
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class CryptTestCase(unittest.TestCase):
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def test_crypt(self):
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cr = crypt.crypt('mypassword')
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cr2 = crypt.crypt('mypassword', cr)
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self.assertEqual(cr2, cr)
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cr = crypt.crypt('mypassword', 'ab')
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if cr is not None:
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cr2 = crypt.crypt('mypassword', cr)
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self.assertEqual(cr2, cr)
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def test_salt(self):
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self.assertEqual(len(crypt._saltchars), 64)
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for method in crypt.methods:
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salt = crypt.mksalt(method)
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self.assertIn(len(salt) - method.salt_chars, {0, 1, 3, 4, 6, 7})
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if method.ident:
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self.assertIn(method.ident, salt[:len(salt)-method.salt_chars])
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def test_saltedcrypt(self):
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for method in crypt.methods:
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cr = crypt.crypt('assword', method)
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self.assertEqual(len(cr), method.total_size)
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cr2 = crypt.crypt('assword', cr)
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self.assertEqual(cr2, cr)
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cr = crypt.crypt('assword', crypt.mksalt(method))
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self.assertEqual(len(cr), method.total_size)
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def test_methods(self):
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self.assertTrue(len(crypt.methods) >= 1)
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if sys.platform.startswith('openbsd'):
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self.assertEqual(crypt.methods, [crypt.METHOD_BLOWFISH])
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else:
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self.assertEqual(crypt.methods[-1], crypt.METHOD_CRYPT)
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@unittest.skipUnless(
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crypt
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and (
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crypt.METHOD_SHA256 in crypt.methods or crypt.METHOD_SHA512 in crypt.methods
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),
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'requires support of SHA-2',
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)
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def test_sha2_rounds(self):
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for method in (crypt.METHOD_SHA256, crypt.METHOD_SHA512):
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for rounds in 1000, 10_000, 100_000:
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salt = crypt.mksalt(method, rounds=rounds)
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self.assertIn('$rounds=%d$' % rounds, salt)
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self.assertEqual(len(salt) - method.salt_chars,
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11 + len(str(rounds)))
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cr = crypt.crypt('mypassword', salt)
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self.assertTrue(cr)
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cr2 = crypt.crypt('mypassword', cr)
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self.assertEqual(cr2, cr)
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@unittest.skipUnless(
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crypt and crypt.METHOD_BLOWFISH in crypt.methods, 'requires support of Blowfish'
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)
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def test_blowfish_rounds(self):
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for log_rounds in range(4, 11):
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salt = crypt.mksalt(crypt.METHOD_BLOWFISH, rounds=1 << log_rounds)
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self.assertIn('$%02d$' % log_rounds, salt)
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self.assertIn(len(salt) - crypt.METHOD_BLOWFISH.salt_chars, {6, 7})
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cr = crypt.crypt('mypassword', salt)
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self.assertTrue(cr)
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cr2 = crypt.crypt('mypassword', cr)
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self.assertEqual(cr2, cr)
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def test_invalid_rounds(self):
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for method in (crypt.METHOD_SHA256, crypt.METHOD_SHA512,
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crypt.METHOD_BLOWFISH):
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with self.assertRaises(TypeError):
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crypt.mksalt(method, rounds='4096')
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with self.assertRaises(TypeError):
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crypt.mksalt(method, rounds=4096.0)
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for rounds in (0, 1, -1, 1<<999):
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with self.assertRaises(ValueError):
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crypt.mksalt(method, rounds=rounds)
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with self.assertRaises(ValueError):
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crypt.mksalt(crypt.METHOD_BLOWFISH, rounds=1000)
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for method in (crypt.METHOD_CRYPT, crypt.METHOD_MD5):
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with self.assertRaisesRegex(ValueError, 'support'):
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crypt.mksalt(method, rounds=4096)
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if __name__ == "__main__":
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unittest.main()
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