mirror of
https://github.com/django/django.git
synced 2025-10-31 01:25:32 +00:00
360 lines
16 KiB
Python
360 lines
16 KiB
Python
# -*- coding: utf-8 -*-
|
|
from __future__ import unicode_literals
|
|
|
|
from unittest import skipUnless
|
|
|
|
from django.conf.global_settings import PASSWORD_HASHERS
|
|
from django.contrib.auth.hashers import (
|
|
UNUSABLE_PASSWORD_PREFIX, UNUSABLE_PASSWORD_SUFFIX_LENGTH,
|
|
BasePasswordHasher, PBKDF2PasswordHasher, PBKDF2SHA1PasswordHasher,
|
|
check_password, get_hasher, identify_hasher, is_password_usable,
|
|
make_password,
|
|
)
|
|
from django.test import SimpleTestCase
|
|
from django.test.utils import override_settings
|
|
from django.utils import six
|
|
|
|
try:
|
|
import crypt
|
|
except ImportError:
|
|
crypt = None
|
|
|
|
try:
|
|
import bcrypt
|
|
except ImportError:
|
|
bcrypt = None
|
|
|
|
|
|
class PBKDF2SingleIterationHasher(PBKDF2PasswordHasher):
|
|
iterations = 1
|
|
|
|
|
|
@override_settings(PASSWORD_HASHERS=PASSWORD_HASHERS)
|
|
class TestUtilsHashPass(SimpleTestCase):
|
|
|
|
def test_simple(self):
|
|
encoded = make_password('lètmein')
|
|
self.assertTrue(encoded.startswith('pbkdf2_sha256$'))
|
|
self.assertTrue(is_password_usable(encoded))
|
|
self.assertTrue(check_password('lètmein', encoded))
|
|
self.assertFalse(check_password('lètmeinz', encoded))
|
|
# Blank passwords
|
|
blank_encoded = make_password('')
|
|
self.assertTrue(blank_encoded.startswith('pbkdf2_sha256$'))
|
|
self.assertTrue(is_password_usable(blank_encoded))
|
|
self.assertTrue(check_password('', blank_encoded))
|
|
self.assertFalse(check_password(' ', blank_encoded))
|
|
|
|
def test_pbkdf2(self):
|
|
encoded = make_password('lètmein', 'seasalt', 'pbkdf2_sha256')
|
|
self.assertEqual(encoded,
|
|
'pbkdf2_sha256$30000$seasalt$VrX+V8drCGo68wlvy6rfu8i1d1pfkdeXA4LJkRGJodY=')
|
|
self.assertTrue(is_password_usable(encoded))
|
|
self.assertTrue(check_password('lètmein', encoded))
|
|
self.assertFalse(check_password('lètmeinz', encoded))
|
|
self.assertEqual(identify_hasher(encoded).algorithm, "pbkdf2_sha256")
|
|
# Blank passwords
|
|
blank_encoded = make_password('', 'seasalt', 'pbkdf2_sha256')
|
|
self.assertTrue(blank_encoded.startswith('pbkdf2_sha256$'))
|
|
self.assertTrue(is_password_usable(blank_encoded))
|
|
self.assertTrue(check_password('', blank_encoded))
|
|
self.assertFalse(check_password(' ', blank_encoded))
|
|
|
|
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")
|
|
# Blank passwords
|
|
blank_encoded = make_password('', 'seasalt', 'sha1')
|
|
self.assertTrue(blank_encoded.startswith('sha1$'))
|
|
self.assertTrue(is_password_usable(blank_encoded))
|
|
self.assertTrue(check_password('', blank_encoded))
|
|
self.assertFalse(check_password(' ', blank_encoded))
|
|
|
|
def test_md5(self):
|
|
encoded = make_password('lètmein', 'seasalt', 'md5')
|
|
self.assertEqual(encoded,
|
|
'md5$seasalt$3f86d0d3d465b7b458c231bf3555c0e3')
|
|
self.assertTrue(is_password_usable(encoded))
|
|
self.assertTrue(check_password('lètmein', encoded))
|
|
self.assertFalse(check_password('lètmeinz', encoded))
|
|
self.assertEqual(identify_hasher(encoded).algorithm, "md5")
|
|
# Blank passwords
|
|
blank_encoded = make_password('', 'seasalt', 'md5')
|
|
self.assertTrue(blank_encoded.startswith('md5$'))
|
|
self.assertTrue(is_password_usable(blank_encoded))
|
|
self.assertTrue(check_password('', blank_encoded))
|
|
self.assertFalse(check_password(' ', blank_encoded))
|
|
|
|
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$$%s" % encoded
|
|
self.assertTrue(is_password_usable(alt_encoded))
|
|
self.assertTrue(check_password('lètmein', alt_encoded))
|
|
self.assertFalse(check_password('lètmeinz', alt_encoded))
|
|
# Blank passwords
|
|
blank_encoded = make_password('', '', 'unsalted_md5')
|
|
self.assertTrue(is_password_usable(blank_encoded))
|
|
self.assertTrue(check_password('', blank_encoded))
|
|
self.assertFalse(check_password(' ', blank_encoded))
|
|
|
|
def test_unsalted_sha1(self):
|
|
encoded = make_password('lètmein', '', 'unsalted_sha1')
|
|
self.assertEqual(encoded, 'sha1$$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))
|
|
# Blank passwords
|
|
blank_encoded = make_password('', '', 'unsalted_sha1')
|
|
self.assertTrue(blank_encoded.startswith('sha1$'))
|
|
self.assertTrue(is_password_usable(blank_encoded))
|
|
self.assertTrue(check_password('', blank_encoded))
|
|
self.assertFalse(check_password(' ', blank_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")
|
|
# Blank passwords
|
|
blank_encoded = make_password('', 'ab', 'crypt')
|
|
self.assertTrue(blank_encoded.startswith('crypt$'))
|
|
self.assertTrue(is_password_usable(blank_encoded))
|
|
self.assertTrue(check_password('', blank_encoded))
|
|
self.assertFalse(check_password(' ', blank_encoded))
|
|
|
|
@skipUnless(bcrypt, "bcrypt not installed")
|
|
def test_bcrypt_sha256(self):
|
|
encoded = make_password('lètmein', hasher='bcrypt_sha256')
|
|
self.assertTrue(is_password_usable(encoded))
|
|
self.assertTrue(encoded.startswith('bcrypt_sha256$'))
|
|
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))
|
|
# Blank passwords
|
|
blank_encoded = make_password('', hasher='bcrypt_sha256')
|
|
self.assertTrue(blank_encoded.startswith('bcrypt_sha256$'))
|
|
self.assertTrue(is_password_usable(blank_encoded))
|
|
self.assertTrue(check_password('', blank_encoded))
|
|
self.assertFalse(check_password(' ', blank_encoded))
|
|
|
|
@skipUnless(bcrypt, "bcrypt not installed")
|
|
def test_bcrypt(self):
|
|
encoded = make_password('lètmein', hasher='bcrypt')
|
|
self.assertTrue(is_password_usable(encoded))
|
|
self.assertTrue(encoded.startswith('bcrypt$'))
|
|
self.assertTrue(check_password('lètmein', encoded))
|
|
self.assertFalse(check_password('lètmeinz', encoded))
|
|
self.assertEqual(identify_hasher(encoded).algorithm, "bcrypt")
|
|
# Blank passwords
|
|
blank_encoded = make_password('', hasher='bcrypt')
|
|
self.assertTrue(blank_encoded.startswith('bcrypt$'))
|
|
self.assertTrue(is_password_usable(blank_encoded))
|
|
self.assertTrue(check_password('', blank_encoded))
|
|
self.assertFalse(check_password(' ', blank_encoded))
|
|
|
|
@skipUnless(bcrypt, "bcrypt not installed")
|
|
def test_bcrypt_upgrade(self):
|
|
hasher = get_hasher('bcrypt')
|
|
self.assertEqual('bcrypt', hasher.algorithm)
|
|
self.assertNotEqual(hasher.rounds, 4)
|
|
|
|
old_rounds = hasher.rounds
|
|
try:
|
|
# Generate a password with 4 rounds.
|
|
hasher.rounds = 4
|
|
encoded = make_password('letmein', hasher='bcrypt')
|
|
rounds = hasher.safe_summary(encoded)['work factor']
|
|
self.assertEqual(rounds, '04')
|
|
|
|
state = {'upgraded': False}
|
|
|
|
def setter(password):
|
|
state['upgraded'] = True
|
|
|
|
# Check that no upgrade is triggered.
|
|
self.assertTrue(check_password('letmein', encoded, setter, 'bcrypt'))
|
|
self.assertFalse(state['upgraded'])
|
|
|
|
# Revert to the old rounds count and ...
|
|
hasher.rounds = old_rounds
|
|
|
|
# ... check if the password would get updated to the new count.
|
|
self.assertTrue(check_password('letmein', encoded, setter, 'bcrypt'))
|
|
self.assertTrue(state['upgraded'])
|
|
finally:
|
|
hasher.rounds = old_rounds
|
|
|
|
def test_unusable(self):
|
|
encoded = make_password(None)
|
|
self.assertEqual(len(encoded), len(UNUSABLE_PASSWORD_PREFIX) + UNUSABLE_PASSWORD_SUFFIX_LENGTH)
|
|
self.assertFalse(is_password_usable(encoded))
|
|
self.assertFalse(check_password(None, encoded))
|
|
self.assertFalse(check_password(encoded, encoded))
|
|
self.assertFalse(check_password(UNUSABLE_PASSWORD_PREFIX, encoded))
|
|
self.assertFalse(check_password('', encoded))
|
|
self.assertFalse(check_password('lètmein', encoded))
|
|
self.assertFalse(check_password('lètmeinz', encoded))
|
|
self.assertRaises(ValueError, identify_hasher, encoded)
|
|
# Assert that the unusable passwords actually contain a random part.
|
|
# This might fail one day due to a hash collision.
|
|
self.assertNotEqual(encoded, make_password(None), "Random password collision?")
|
|
|
|
def test_unspecified_password(self):
|
|
"""
|
|
Makes sure specifying no plain password with a valid encoded password
|
|
returns `False`.
|
|
"""
|
|
self.assertFalse(check_password(None, make_password('lètmein')))
|
|
|
|
def test_bad_algorithm(self):
|
|
with self.assertRaises(ValueError):
|
|
make_password('lètmein', hasher='lolcat')
|
|
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_pbkdf2(self):
|
|
hasher = PBKDF2PasswordHasher()
|
|
encoded = hasher.encode('lètmein', 'seasalt2')
|
|
self.assertEqual(encoded,
|
|
'pbkdf2_sha256$30000$seasalt2$a75qzbogeVhNFeMqhdgyyoqGKpIzYUo651sq57RERew=')
|
|
self.assertTrue(hasher.verify('lètmein', encoded))
|
|
|
|
def test_low_level_pbkdf2_sha1(self):
|
|
hasher = PBKDF2SHA1PasswordHasher()
|
|
encoded = hasher.encode('lètmein', 'seasalt2')
|
|
self.assertEqual(encoded,
|
|
'pbkdf2_sha1$30000$seasalt2$pMzU1zNPcydf6wjnJFbiVKwgULc=')
|
|
self.assertTrue(hasher.verify('lètmein', encoded))
|
|
|
|
def test_upgrade(self):
|
|
self.assertEqual('pbkdf2_sha256', get_hasher('default').algorithm)
|
|
for algo in ('sha1', 'md5'):
|
|
encoded = make_password('lètmein', hasher=algo)
|
|
state = {'upgraded': False}
|
|
|
|
def setter(password):
|
|
state['upgraded'] = True
|
|
self.assertTrue(check_password('lètmein', encoded, setter))
|
|
self.assertTrue(state['upgraded'])
|
|
|
|
def test_no_upgrade(self):
|
|
encoded = make_password('lètmein')
|
|
state = {'upgraded': False}
|
|
|
|
def setter():
|
|
state['upgraded'] = True
|
|
self.assertFalse(check_password('WRONG', encoded, setter))
|
|
self.assertFalse(state['upgraded'])
|
|
|
|
def test_no_upgrade_on_incorrect_pass(self):
|
|
self.assertEqual('pbkdf2_sha256', get_hasher('default').algorithm)
|
|
for algo in ('sha1', 'md5'):
|
|
encoded = make_password('lètmein', hasher=algo)
|
|
state = {'upgraded': False}
|
|
|
|
def setter():
|
|
state['upgraded'] = True
|
|
self.assertFalse(check_password('WRONG', encoded, setter))
|
|
self.assertFalse(state['upgraded'])
|
|
|
|
def test_pbkdf2_upgrade(self):
|
|
hasher = get_hasher('default')
|
|
self.assertEqual('pbkdf2_sha256', hasher.algorithm)
|
|
self.assertNotEqual(hasher.iterations, 1)
|
|
|
|
old_iterations = hasher.iterations
|
|
try:
|
|
# Generate a password with 1 iteration.
|
|
hasher.iterations = 1
|
|
encoded = make_password('letmein')
|
|
algo, iterations, salt, hash = encoded.split('$', 3)
|
|
self.assertEqual(iterations, '1')
|
|
|
|
state = {'upgraded': False}
|
|
|
|
def setter(password):
|
|
state['upgraded'] = True
|
|
|
|
# Check that no upgrade is triggered
|
|
self.assertTrue(check_password('letmein', encoded, setter))
|
|
self.assertFalse(state['upgraded'])
|
|
|
|
# Revert to the old iteration count and ...
|
|
hasher.iterations = old_iterations
|
|
|
|
# ... check if the password would get updated to the new iteration count.
|
|
self.assertTrue(check_password('letmein', encoded, setter))
|
|
self.assertTrue(state['upgraded'])
|
|
finally:
|
|
hasher.iterations = old_iterations
|
|
|
|
def test_pbkdf2_upgrade_new_hasher(self):
|
|
hasher = get_hasher('default')
|
|
self.assertEqual('pbkdf2_sha256', hasher.algorithm)
|
|
self.assertNotEqual(hasher.iterations, 1)
|
|
|
|
state = {'upgraded': False}
|
|
|
|
def setter(password):
|
|
state['upgraded'] = True
|
|
|
|
with self.settings(PASSWORD_HASHERS=[
|
|
'auth_tests.test_hashers.PBKDF2SingleIterationHasher']):
|
|
encoded = make_password('letmein')
|
|
algo, iterations, salt, hash = encoded.split('$', 3)
|
|
self.assertEqual(iterations, '1')
|
|
|
|
# Check that no upgrade is triggered
|
|
self.assertTrue(check_password('letmein', encoded, setter))
|
|
self.assertFalse(state['upgraded'])
|
|
|
|
# Revert to the old iteration count and check if the password would get
|
|
# updated to the new iteration count.
|
|
with self.settings(PASSWORD_HASHERS=[
|
|
'django.contrib.auth.hashers.PBKDF2PasswordHasher',
|
|
'auth_tests.test_hashers.PBKDF2SingleIterationHasher']):
|
|
self.assertTrue(check_password('letmein', encoded, setter))
|
|
self.assertTrue(state['upgraded'])
|
|
|
|
def test_load_library_no_algorithm(self):
|
|
with self.assertRaises(ValueError) as e:
|
|
BasePasswordHasher()._load_library()
|
|
self.assertEqual("Hasher 'BasePasswordHasher' doesn't specify a "
|
|
"library attribute", str(e.exception))
|
|
|
|
def test_load_library_importerror(self):
|
|
PlainHasher = type(str('PlainHasher'), (BasePasswordHasher,),
|
|
{'algorithm': 'plain', 'library': 'plain'})
|
|
# Python 3 adds quotes around module name
|
|
with six.assertRaisesRegex(self, ValueError,
|
|
"Couldn't load 'PlainHasher' algorithm library: No module named '?plain'?"):
|
|
PlainHasher()._load_library()
|