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# -*- coding: utf-8 -*-
from __future__ import unicode_literals
import os
from django.contrib.auth import validators
from django.contrib.auth.models import User
from django.contrib.auth.password_validation import (
CommonPasswordValidator, MinimumLengthValidator, NumericPasswordValidator,
UserAttributeSimilarityValidator, get_default_password_validators,
get_password_validators, password_changed,
password_validators_help_text_html, password_validators_help_texts,
validate_password,
)
from django.core.exceptions import ValidationError
from django.db import models
from django.test import TestCase, override_settings
from django.test.utils import isolate_apps
from django.utils._os import upath
@override_settings(AUTH_PASSWORD_VALIDATORS=[
{'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator'},
{'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator', 'OPTIONS': {
'min_length': 12,
}},
])
class PasswordValidationTest(TestCase):
def test_get_default_password_validators(self):
validators = get_default_password_validators()
self.assertEqual(len(validators), 2)
self.assertEqual(validators[0].__class__.__name__, 'CommonPasswordValidator')
self.assertEqual(validators[1].__class__.__name__, 'MinimumLengthValidator')
self.assertEqual(validators[1].min_length, 12)
def test_get_password_validators_custom(self):
validator_config = [{'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator'}]
validators = get_password_validators(validator_config)
self.assertEqual(len(validators), 1)
self.assertEqual(validators[0].__class__.__name__, 'CommonPasswordValidator')
self.assertEqual(get_password_validators([]), [])
def test_validate_password(self):
self.assertIsNone(validate_password('sufficiently-long'))
msg_too_short = 'This password is too short. It must contain at least 12 characters.'
with self.assertRaises(ValidationError) as cm:
validate_password('django4242')
self.assertEqual(cm.exception.messages, [msg_too_short])
self.assertEqual(cm.exception.error_list[0].code, 'password_too_short')
with self.assertRaises(ValidationError) as cm:
validate_password('password')
self.assertEqual(cm.exception.messages, ['This password is too common.', msg_too_short])
self.assertEqual(cm.exception.error_list[0].code, 'password_too_common')
self.assertIsNone(validate_password('password', password_validators=[]))
def test_password_changed(self):
self.assertIsNone(password_changed('password'))
def test_password_validators_help_texts(self):
help_texts = password_validators_help_texts()
self.assertEqual(len(help_texts), 2)
self.assertIn('12 characters', help_texts[1])
self.assertEqual(password_validators_help_texts(password_validators=[]), [])
def test_password_validators_help_text_html(self):
help_text = password_validators_help_text_html()
self.assertEqual(help_text.count('<li>'), 2)
self.assertIn('12 characters', help_text)
@override_settings(AUTH_PASSWORD_VALIDATORS=[])
def test_empty_password_validator_help_text_html(self):
self.assertEqual(password_validators_help_text_html(), '')
class MinimumLengthValidatorTest(TestCase):
def test_validate(self):
expected_error = "This password is too short. It must contain at least %d characters."
self.assertIsNone(MinimumLengthValidator().validate('12345678'))
self.assertIsNone(MinimumLengthValidator(min_length=3).validate('123'))
with self.assertRaises(ValidationError) as cm:
MinimumLengthValidator().validate('1234567')
self.assertEqual(cm.exception.messages, [expected_error % 8])
self.assertEqual(cm.exception.error_list[0].code, 'password_too_short')
with self.assertRaises(ValidationError) as cm:
MinimumLengthValidator(min_length=3).validate('12')
self.assertEqual(cm.exception.messages, [expected_error % 3])
def test_help_text(self):
self.assertEqual(
MinimumLengthValidator().get_help_text(),
"Your password must contain at least 8 characters."
)
class UserAttributeSimilarityValidatorTest(TestCase):
def test_validate(self):
user = User.objects.create_user(
username='testclient', password='password', email='testclient@example.com',
first_name='Test', last_name='Client',
)
expected_error = "The password is too similar to the %s."
self.assertIsNone(UserAttributeSimilarityValidator().validate('testclient'))
with self.assertRaises(ValidationError) as cm:
UserAttributeSimilarityValidator().validate('testclient', user=user),
self.assertEqual(cm.exception.messages, [expected_error % "username"])
self.assertEqual(cm.exception.error_list[0].code, 'password_too_similar')
with self.assertRaises(ValidationError) as cm:
UserAttributeSimilarityValidator().validate('example.com', user=user),
self.assertEqual(cm.exception.messages, [expected_error % "email address"])
with self.assertRaises(ValidationError) as cm:
UserAttributeSimilarityValidator(
user_attributes=['first_name'],
max_similarity=0.3,
).validate('testclient', user=user)
self.assertEqual(cm.exception.messages, [expected_error % "first name"])
# max_similarity=1 doesn't allow passwords that are identical to the
# attribute's value.
with self.assertRaises(ValidationError) as cm:
UserAttributeSimilarityValidator(
user_attributes=['first_name'],
max_similarity=1,
).validate(user.first_name, user=user)
self.assertEqual(cm.exception.messages, [expected_error % "first name"])
# max_similarity=0 rejects all passwords.
with self.assertRaises(ValidationError) as cm:
UserAttributeSimilarityValidator(
user_attributes=['first_name'],
max_similarity=0,
).validate('XXX', user=user)
self.assertEqual(cm.exception.messages, [expected_error % "first name"])
# Passes validation.
self.assertIsNone(
UserAttributeSimilarityValidator(user_attributes=['first_name']).validate('testclient', user=user)
)
@isolate_apps('auth_tests')
def test_validate_property(self):
class TestUser(models.Model):
pass
@property
def username(self):
return 'foobar'
with self.assertRaises(ValidationError) as cm:
UserAttributeSimilarityValidator().validate('foobar', user=TestUser()),
self.assertEqual(cm.exception.messages, ['The password is too similar to the username.'])
def test_help_text(self):
self.assertEqual(
UserAttributeSimilarityValidator().get_help_text(),
"Your password can't be too similar to your other personal information."
)
class CommonPasswordValidatorTest(TestCase):
def test_validate(self):
expected_error = "This password is too common."
self.assertIsNone(CommonPasswordValidator().validate('a-safe-password'))
with self.assertRaises(ValidationError) as cm:
CommonPasswordValidator().validate('godzilla')
self.assertEqual(cm.exception.messages, [expected_error])
def test_validate_custom_list(self):
path = os.path.join(os.path.dirname(os.path.realpath(upath(__file__))), 'common-passwords-custom.txt')
validator = CommonPasswordValidator(password_list_path=path)
expected_error = "This password is too common."
self.assertIsNone(validator.validate('a-safe-password'))
with self.assertRaises(ValidationError) as cm:
validator.validate('from-my-custom-list')
self.assertEqual(cm.exception.messages, [expected_error])
self.assertEqual(cm.exception.error_list[0].code, 'password_too_common')
def test_help_text(self):
self.assertEqual(
CommonPasswordValidator().get_help_text(),
"Your password can't be a commonly used password."
)
class NumericPasswordValidatorTest(TestCase):
def test_validate(self):
expected_error = "This password is entirely numeric."
self.assertIsNone(NumericPasswordValidator().validate('a-safe-password'))
with self.assertRaises(ValidationError) as cm:
NumericPasswordValidator().validate('42424242')
self.assertEqual(cm.exception.messages, [expected_error])
self.assertEqual(cm.exception.error_list[0].code, 'password_entirely_numeric')
def test_help_text(self):
self.assertEqual(
NumericPasswordValidator().get_help_text(),
"Your password can't be entirely numeric."
)
class UsernameValidatorsTests(TestCase):
def test_unicode_validator(self):
valid_usernames = ['joe', 'René', 'ᴮᴵᴳᴮᴵᴿᴰ', 'أحمد']
invalid_usernames = [
"o'connell", "عبد ال",
"zerowidth\u200Bspace", "nonbreaking\u00A0space",
"en\u2013dash",
]
v = validators.UnicodeUsernameValidator()
for valid in valid_usernames:
v(valid)
for invalid in invalid_usernames:
with self.assertRaises(ValidationError):
v(invalid)
def test_ascii_validator(self):
valid_usernames = ['glenn', 'GLEnN', 'jean-marc']
invalid_usernames = ["o'connell", 'Éric', 'jean marc', "أحمد"]
v = validators.ASCIIUsernameValidator()
for valid in valid_usernames:
v(valid)
for invalid in invalid_usernames:
with self.assertRaises(ValidationError):
v(invalid)
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