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from django.conf.global_settings import PASSWORD_HASHERS as default_hashers
from django.contrib.auth.hashers import (is_password_usable,
check_password, make_password, PBKDF2PasswordHasher, load_hashers,
PBKDF2SHA1PasswordHasher, get_hasher, UNUSABLE_PASSWORD,
MAXIMUM_PASSWORD_LENGTH, password_max_length)
from django.utils import unittest
from django.utils.unittest import skipUnless
from django.test.utils import override_settings
try:
import crypt
except ImportError:
crypt = None
try:
import bcrypt
except ImportError:
bcrypt = None
class TestUtilsHashPass(unittest.TestCase):
def setUp(self):
load_hashers(password_hashers=default_hashers)
def test_simple(self):
encoded = make_password('letmein')
self.assertTrue(encoded.startswith('pbkdf2_sha256$'))
self.assertTrue(is_password_usable(encoded))
self.assertTrue(check_password(u'letmein', encoded))
self.assertFalse(check_password('letmeinz', encoded))
# Long password
self.assertRaises(
ValueError,
make_password,
b"1" * (MAXIMUM_PASSWORD_LENGTH + 1),
)
def test_pkbdf2(self):
encoded = make_password('letmein', 'seasalt', 'pbkdf2_sha256')
self.assertEqual(encoded,
'pbkdf2_sha256$10000$seasalt$FQCNpiZpTb0zub+HBsH6TOwyRxJ19FwvjbweatNmK/Y=')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(check_password(u'letmein', encoded))
self.assertFalse(check_password('letmeinz', encoded))
# Long password
self.assertRaises(
ValueError,
make_password,
b"1" * (MAXIMUM_PASSWORD_LENGTH + 1),
"seasalt",
"pbkdf2_sha256",
)
def test_sha1(self):
encoded = make_password('letmein', 'seasalt', 'sha1')
self.assertEqual(encoded,
'sha1$seasalt$fec3530984afba6bade3347b7140d1a7da7da8c7')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(check_password(u'letmein', encoded))
self.assertFalse(check_password('letmeinz', encoded))
# Long password
self.assertRaises(
ValueError,
make_password,
b"1" * (MAXIMUM_PASSWORD_LENGTH + 1),
"seasalt",
"sha1",
)
def test_md5(self):
encoded = make_password('letmein', 'seasalt', 'md5')
self.assertEqual(encoded,
'md5$seasalt$f5531bef9f3687d0ccf0f617f0e25573')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(check_password(u'letmein', encoded))
self.assertFalse(check_password('letmeinz', encoded))
# Long password
self.assertRaises(
ValueError,
make_password,
b"1" * (MAXIMUM_PASSWORD_LENGTH + 1),
"seasalt",
"md5",
)
def test_unsalted_md5(self):
encoded = make_password('letmein', '', 'unsalted_md5')
self.assertEqual(encoded, '0d107d09f5bbe40cade3de5c71e9e9b7')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(check_password(u'letmein', encoded))
self.assertFalse(check_password('letmeinz', encoded))
# Alternate unsalted syntax
alt_encoded = "md5$$%s" % encoded
self.assertTrue(is_password_usable(alt_encoded))
self.assertTrue(check_password(u'letmein', alt_encoded))
self.assertFalse(check_password('letmeinz', alt_encoded))
# Long password
self.assertRaises(
ValueError,
make_password,
b"1" * (MAXIMUM_PASSWORD_LENGTH + 1),
"",
"unsalted_md5",
)
def test_unsalted_sha1(self):
encoded = make_password('letmein', '', 'unsalted_sha1')
self.assertEqual(encoded, 'sha1$$b7a875fc1ea228b9061041b7cec4bd3c52ab3ce3')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(check_password('letmein', encoded))
self.assertFalse(check_password('letmeinz', encoded))
# Raw SHA1 isn't acceptable
alt_encoded = encoded[6:]
self.assertRaises(ValueError, check_password, 'letmein', alt_encoded)
# Long password
self.assertRaises(
ValueError,
make_password,
b"1" * (MAXIMUM_PASSWORD_LENGTH + 1),
"",
"unslated_sha1",
)
@skipUnless(crypt, "no crypt module to generate password.")
def test_crypt(self):
encoded = make_password('letmein', 'ab', 'crypt')
self.assertEqual(encoded, 'crypt$$abN/qM.L/H8EQ')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(check_password(u'letmein', encoded))
self.assertFalse(check_password('letmeinz', encoded))
# Long password
self.assertRaises(
ValueError,
make_password,
b"1" * (MAXIMUM_PASSWORD_LENGTH + 1),
"seasalt",
"crypt",
)
@skipUnless(bcrypt, "py-bcrypt not installed")
def test_bcrypt(self):
encoded = make_password('letmein', hasher='bcrypt')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(encoded.startswith('bcrypt$'))
self.assertTrue(check_password(u'letmein', encoded))
self.assertFalse(check_password('letmeinz', encoded))
# Long password
self.assertRaises(
ValueError,
make_password,
b"1" * (MAXIMUM_PASSWORD_LENGTH + 1),
hasher="bcrypt",
)
def test_unusable(self):
encoded = make_password(None)
self.assertFalse(is_password_usable(encoded))
self.assertFalse(check_password(None, encoded))
self.assertFalse(check_password(UNUSABLE_PASSWORD, encoded))
self.assertFalse(check_password('', encoded))
self.assertFalse(check_password(u'letmein', encoded))
self.assertFalse(check_password('letmeinz', encoded))
def test_bad_algorithm(self):
def doit():
make_password('letmein', hasher='lolcat')
self.assertRaises(ValueError, doit)
def test_max_password_length_decorator(self):
@password_max_length(10)
def encode(s, password, salt):
return True
self.assertTrue(encode(None, b"1234", b"1234"))
self.assertRaises(ValueError, encode, None, b"1234567890A", b"1234")
def test_low_level_pkbdf2(self):
hasher = PBKDF2PasswordHasher()
encoded = hasher.encode('letmein', 'seasalt')
self.assertEqual(encoded,
'pbkdf2_sha256$10000$seasalt$FQCNpiZpTb0zub+HBsH6TOwyRxJ19FwvjbweatNmK/Y=')
self.assertTrue(hasher.verify('letmein', encoded))
def test_low_level_pbkdf2_sha1(self):
hasher = PBKDF2SHA1PasswordHasher()
encoded = hasher.encode('letmein', 'seasalt')
self.assertEqual(encoded,
'pbkdf2_sha1$10000$seasalt$91JiNKgwADC8j2j86Ije/cc4vfQ=')
self.assertTrue(hasher.verify('letmein', encoded))
def test_upgrade(self):
self.assertEqual('pbkdf2_sha256', get_hasher('default').algorithm)
for algo in ('sha1', 'md5'):
encoded = make_password('letmein', hasher=algo)
state = {'upgraded': False}
def setter(password):
state['upgraded'] = True
self.assertTrue(check_password('letmein', encoded, setter))
self.assertTrue(state['upgraded'])
def test_no_upgrade(self):
encoded = make_password('letmein')
state = {'upgraded': False}
def setter():
state['upgraded'] = True
self.assertFalse(check_password('WRONG', encoded, setter))
self.assertFalse(state['upgraded'])
def test_no_upgrade_on_incorrect_pass(self):
self.assertEqual('pbkdf2_sha256', get_hasher('default').algorithm)
for algo in ('sha1', 'md5'):
encoded = make_password('letmein', hasher=algo)
state = {'upgraded': False}
def setter():
state['upgraded'] = True
self.assertFalse(check_password('WRONG', encoded, setter))
self.assertFalse(state['upgraded'])
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