/
hashers.py
180 lines (155 loc) · 7.84 KB
/
hashers.py
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# -*- coding: utf-8 -*-
from __future__ import unicode_literals
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, identify_hasher, UNUSABLE_PASSWORD)
from django.utils import unittest
from django.utils.unittest import skipUnless
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('lètmein')
self.assertTrue(encoded.startswith('pbkdf2_sha256$'))
self.assertTrue(is_password_usable(encoded))
self.assertTrue(check_password('lètmein', encoded))
self.assertFalse(check_password('lètmeinz', encoded))
def test_pkbdf2(self):
encoded = make_password('lètmein', 'seasalt', 'pbkdf2_sha256')
self.assertEqual(encoded,
'pbkdf2_sha256$10000$seasalt$CWWFdHOWwPnki7HvkcqN9iA2T3KLW1cf2uZ5kvArtVY=')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(check_password('lètmein', encoded))
self.assertFalse(check_password('lètmeinz', encoded))
self.assertEqual(identify_hasher(encoded).algorithm, "pbkdf2_sha256")
def test_sha1(self):
encoded = make_password('lètmein', 'seasalt', 'sha1')
self.assertEqual(encoded,
'sha1$seasalt$cff36ea83f5706ce9aa7454e63e431fc726b2dc8')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(check_password('lètmein', encoded))
self.assertFalse(check_password('lètmeinz', encoded))
self.assertEqual(identify_hasher(encoded).algorithm, "sha1")
def test_md5(self):
encoded = make_password('lètmein', 'seasalt', 'md5')
self.assertEqual(encoded,
'md5$seasalt$3f86d0d3d465b7b458c231bf3555c0e3')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(check_password('lètmein', encoded))
self.assertFalse(check_password('lètmeinz', encoded))
self.assertEqual(identify_hasher(encoded).algorithm, "md5")
def test_unsalted_md5(self):
encoded = make_password('lètmein', '', 'unsalted_md5')
self.assertEqual(encoded, '88a434c88cca4e900f7874cd98123f43')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(check_password('lètmein', encoded))
self.assertFalse(check_password('lètmeinz', encoded))
self.assertEqual(identify_hasher(encoded).algorithm, "unsalted_md5")
# Alternate unsalted syntax
alt_encoded = "md5$$%s" % encoded
self.assertTrue(is_password_usable(alt_encoded))
self.assertTrue(check_password('lètmein', alt_encoded))
self.assertFalse(check_password('lètmeinz', alt_encoded))
def test_unsalted_sha1(self):
encoded = make_password('lètmein', '', 'unsalted_sha1')
self.assertEqual(encoded, 'sha1$$6d138ca3ae545631b3abd71a4f076ce759c5700b')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(check_password('lètmein', encoded))
self.assertFalse(check_password('lètmeinz', encoded))
self.assertEqual(identify_hasher(encoded).algorithm, "unsalted_sha1")
# Raw SHA1 isn't acceptable
alt_encoded = encoded[6:]
self.assertFalse(check_password('lètmein', alt_encoded))
@skipUnless(crypt, "no crypt module to generate password.")
def test_crypt(self):
encoded = make_password('lètmei', 'ab', 'crypt')
self.assertEqual(encoded, 'crypt$$ab1Hv2Lg7ltQo')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(check_password('lètmei', encoded))
self.assertFalse(check_password('lètmeiz', encoded))
self.assertEqual(identify_hasher(encoded).algorithm, "crypt")
@skipUnless(bcrypt, "py-bcrypt not installed")
def test_bcrypt_sha256(self):
encoded = make_password('lètmein', hasher='bcrypt_sha256')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(encoded.startswith('bcrypt_sha256$'))
self.assertTrue(check_password('lètmein', encoded))
self.assertFalse(check_password('lètmeinz', encoded))
self.assertEqual(identify_hasher(encoded).algorithm, "bcrypt_sha256")
# Verify that password truncation no longer works
password = ('VSK0UYV6FFQVZ0KG88DYN9WADAADZO1CTSIVDJUNZSUML6IBX7LN7ZS3R5'
'JGB3RGZ7VI7G7DJQ9NI8BQFSRPTG6UWTTVESA5ZPUN')
encoded = make_password(password, hasher='bcrypt_sha256')
self.assertTrue(check_password(password, encoded))
self.assertFalse(check_password(password[:72], encoded))
@skipUnless(bcrypt, "py-bcrypt not installed")
def test_bcrypt(self):
encoded = make_password('lètmein', hasher='bcrypt')
self.assertTrue(is_password_usable(encoded))
self.assertTrue(encoded.startswith('bcrypt$'))
self.assertTrue(check_password('lètmein', encoded))
self.assertFalse(check_password('lètmeinz', encoded))
self.assertEqual(identify_hasher(encoded).algorithm, "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('lètmein', encoded))
self.assertFalse(check_password('lètmeinz', encoded))
self.assertRaises(ValueError, identify_hasher, encoded)
def test_bad_algorithm(self):
def doit():
make_password('lètmein', hasher='lolcat')
self.assertRaises(ValueError, doit)
self.assertRaises(ValueError, identify_hasher, "lolcat$salt$hash")
def test_bad_encoded(self):
self.assertFalse(is_password_usable('lètmein_badencoded'))
self.assertFalse(is_password_usable(''))
def test_low_level_pkbdf2(self):
hasher = PBKDF2PasswordHasher()
encoded = hasher.encode('lètmein', 'seasalt')
self.assertEqual(encoded,
'pbkdf2_sha256$10000$seasalt$CWWFdHOWwPnki7HvkcqN9iA2T3KLW1cf2uZ5kvArtVY=')
self.assertTrue(hasher.verify('lètmein', encoded))
def test_low_level_pbkdf2_sha1(self):
hasher = PBKDF2SHA1PasswordHasher()
encoded = hasher.encode('lètmein', 'seasalt')
self.assertEqual(encoded,
'pbkdf2_sha1$10000$seasalt$oAfF6vgs95ncksAhGXOWf4Okq7o=')
self.assertTrue(hasher.verify('lètmein', encoded))
def test_upgrade(self):
self.assertEqual('pbkdf2_sha256', get_hasher('default').algorithm)
for algo in ('sha1', 'md5'):
encoded = make_password('lètmein', hasher=algo)
state = {'upgraded': False}
def setter(password):
state['upgraded'] = True
self.assertTrue(check_password('lètmein', encoded, setter))
self.assertTrue(state['upgraded'])
def test_no_upgrade(self):
encoded = make_password('lètmein')
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('lètmein', hasher=algo)
state = {'upgraded': False}
def setter():
state['upgraded'] = True
self.assertFalse(check_password('WRONG', encoded, setter))
self.assertFalse(state['upgraded'])