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296 lines
11 KiB
Python
296 lines
11 KiB
Python
import os
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from django.contrib.auth import validators
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from django.contrib.auth.models import User
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from django.contrib.auth.password_validation import (
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CommonPasswordValidator,
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MinimumLengthValidator,
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NumericPasswordValidator,
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UserAttributeSimilarityValidator,
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get_default_password_validators,
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get_password_validators,
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password_changed,
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password_validators_help_text_html,
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password_validators_help_texts,
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validate_password,
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)
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from django.core.exceptions import ValidationError
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from django.db import models
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from django.test import SimpleTestCase, TestCase, override_settings
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from django.test.utils import isolate_apps
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from django.utils.html import conditional_escape
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@override_settings(
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AUTH_PASSWORD_VALIDATORS=[
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{"NAME": "django.contrib.auth.password_validation.CommonPasswordValidator"},
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{
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"NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",
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"OPTIONS": {
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"min_length": 12,
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},
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},
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]
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)
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class PasswordValidationTest(SimpleTestCase):
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def test_get_default_password_validators(self):
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validators = get_default_password_validators()
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self.assertEqual(len(validators), 2)
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self.assertEqual(validators[0].__class__.__name__, "CommonPasswordValidator")
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self.assertEqual(validators[1].__class__.__name__, "MinimumLengthValidator")
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self.assertEqual(validators[1].min_length, 12)
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def test_get_password_validators_custom(self):
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validator_config = [
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{"NAME": "django.contrib.auth.password_validation.CommonPasswordValidator"}
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]
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validators = get_password_validators(validator_config)
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self.assertEqual(len(validators), 1)
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self.assertEqual(validators[0].__class__.__name__, "CommonPasswordValidator")
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self.assertEqual(get_password_validators([]), [])
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def test_validate_password(self):
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self.assertIsNone(validate_password("sufficiently-long"))
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msg_too_short = (
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"This password is too short. It must contain at least 12 characters."
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)
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with self.assertRaises(ValidationError) as cm:
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validate_password("django4242")
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self.assertEqual(cm.exception.messages, [msg_too_short])
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self.assertEqual(cm.exception.error_list[0].code, "password_too_short")
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with self.assertRaises(ValidationError) as cm:
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validate_password("password")
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self.assertEqual(
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cm.exception.messages, ["This password is too common.", msg_too_short]
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)
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self.assertEqual(cm.exception.error_list[0].code, "password_too_common")
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self.assertIsNone(validate_password("password", password_validators=[]))
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def test_password_changed(self):
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self.assertIsNone(password_changed("password"))
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def test_password_changed_with_custom_validator(self):
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class Validator:
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def password_changed(self, password, user):
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self.password = password
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self.user = user
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user = object()
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validator = Validator()
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password_changed("password", user=user, password_validators=(validator,))
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self.assertIs(validator.user, user)
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self.assertEqual(validator.password, "password")
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def test_password_validators_help_texts(self):
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help_texts = password_validators_help_texts()
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self.assertEqual(len(help_texts), 2)
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self.assertIn("12 characters", help_texts[1])
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self.assertEqual(password_validators_help_texts(password_validators=[]), [])
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def test_password_validators_help_text_html(self):
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help_text = password_validators_help_text_html()
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self.assertEqual(help_text.count("<li>"), 2)
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self.assertIn("12 characters", help_text)
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def test_password_validators_help_text_html_escaping(self):
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class AmpersandValidator:
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def get_help_text(self):
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return "Must contain &"
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help_text = password_validators_help_text_html([AmpersandValidator()])
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self.assertEqual(help_text, "<ul><li>Must contain &</li></ul>")
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# help_text is marked safe and therefore unchanged by conditional_escape().
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self.assertEqual(help_text, conditional_escape(help_text))
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@override_settings(AUTH_PASSWORD_VALIDATORS=[])
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def test_empty_password_validator_help_text_html(self):
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self.assertEqual(password_validators_help_text_html(), "")
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class MinimumLengthValidatorTest(SimpleTestCase):
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def test_validate(self):
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expected_error = (
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"This password is too short. It must contain at least %d characters."
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)
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self.assertIsNone(MinimumLengthValidator().validate("12345678"))
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self.assertIsNone(MinimumLengthValidator(min_length=3).validate("123"))
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with self.assertRaises(ValidationError) as cm:
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MinimumLengthValidator().validate("1234567")
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self.assertEqual(cm.exception.messages, [expected_error % 8])
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self.assertEqual(cm.exception.error_list[0].code, "password_too_short")
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with self.assertRaises(ValidationError) as cm:
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MinimumLengthValidator(min_length=3).validate("12")
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self.assertEqual(cm.exception.messages, [expected_error % 3])
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def test_help_text(self):
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self.assertEqual(
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MinimumLengthValidator().get_help_text(),
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"Your password must contain at least 8 characters.",
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)
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class UserAttributeSimilarityValidatorTest(TestCase):
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def test_validate(self):
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user = User.objects.create_user(
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username="testclient",
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password="password",
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email="testclient@example.com",
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first_name="Test",
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last_name="Client",
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)
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expected_error = "The password is too similar to the %s."
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self.assertIsNone(UserAttributeSimilarityValidator().validate("testclient"))
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with self.assertRaises(ValidationError) as cm:
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UserAttributeSimilarityValidator().validate("testclient", user=user)
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self.assertEqual(cm.exception.messages, [expected_error % "username"])
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self.assertEqual(cm.exception.error_list[0].code, "password_too_similar")
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with self.assertRaises(ValidationError) as cm:
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UserAttributeSimilarityValidator().validate("example.com", user=user)
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self.assertEqual(cm.exception.messages, [expected_error % "email address"])
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with self.assertRaises(ValidationError) as cm:
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UserAttributeSimilarityValidator(
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user_attributes=["first_name"],
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max_similarity=0.3,
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).validate("testclient", user=user)
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self.assertEqual(cm.exception.messages, [expected_error % "first name"])
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# max_similarity=1 doesn't allow passwords that are identical to the
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# attribute's value.
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with self.assertRaises(ValidationError) as cm:
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UserAttributeSimilarityValidator(
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user_attributes=["first_name"],
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max_similarity=1,
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).validate(user.first_name, user=user)
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self.assertEqual(cm.exception.messages, [expected_error % "first name"])
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# Very low max_similarity is rejected.
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msg = "max_similarity must be at least 0.1"
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with self.assertRaisesMessage(ValueError, msg):
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UserAttributeSimilarityValidator(max_similarity=0.09)
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# Passes validation.
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self.assertIsNone(
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UserAttributeSimilarityValidator(user_attributes=["first_name"]).validate(
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"testclient", user=user
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)
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)
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@isolate_apps("auth_tests")
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def test_validate_property(self):
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class TestUser(models.Model):
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pass
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@property
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def username(self):
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return "foobar"
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with self.assertRaises(ValidationError) as cm:
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UserAttributeSimilarityValidator().validate("foobar", user=TestUser())
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self.assertEqual(
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cm.exception.messages, ["The password is too similar to the username."]
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)
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def test_help_text(self):
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self.assertEqual(
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UserAttributeSimilarityValidator().get_help_text(),
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"Your password can’t be too similar to your other personal information.",
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)
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class CommonPasswordValidatorTest(SimpleTestCase):
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def test_validate(self):
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expected_error = "This password is too common."
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self.assertIsNone(CommonPasswordValidator().validate("a-safe-password"))
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with self.assertRaises(ValidationError) as cm:
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CommonPasswordValidator().validate("godzilla")
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self.assertEqual(cm.exception.messages, [expected_error])
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def test_validate_custom_list(self):
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path = os.path.join(
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os.path.dirname(os.path.realpath(__file__)), "common-passwords-custom.txt"
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)
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validator = CommonPasswordValidator(password_list_path=path)
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expected_error = "This password is too common."
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self.assertIsNone(validator.validate("a-safe-password"))
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with self.assertRaises(ValidationError) as cm:
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validator.validate("from-my-custom-list")
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self.assertEqual(cm.exception.messages, [expected_error])
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self.assertEqual(cm.exception.error_list[0].code, "password_too_common")
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def test_validate_django_supplied_file(self):
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validator = CommonPasswordValidator()
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for password in validator.passwords:
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self.assertEqual(password, password.lower())
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def test_help_text(self):
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self.assertEqual(
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CommonPasswordValidator().get_help_text(),
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"Your password can’t be a commonly used password.",
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)
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class NumericPasswordValidatorTest(SimpleTestCase):
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def test_validate(self):
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expected_error = "This password is entirely numeric."
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self.assertIsNone(NumericPasswordValidator().validate("a-safe-password"))
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with self.assertRaises(ValidationError) as cm:
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NumericPasswordValidator().validate("42424242")
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self.assertEqual(cm.exception.messages, [expected_error])
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self.assertEqual(cm.exception.error_list[0].code, "password_entirely_numeric")
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def test_help_text(self):
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self.assertEqual(
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NumericPasswordValidator().get_help_text(),
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"Your password can’t be entirely numeric.",
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)
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class UsernameValidatorsTests(SimpleTestCase):
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def test_unicode_validator(self):
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valid_usernames = ["joe", "René", "ᴮᴵᴳᴮᴵᴿᴰ", "أحمد"]
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invalid_usernames = [
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"o'connell",
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"عبد ال",
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"zerowidth\u200Bspace",
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"nonbreaking\u00A0space",
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"en\u2013dash",
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"trailingnewline\u000A",
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]
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v = validators.UnicodeUsernameValidator()
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for valid in valid_usernames:
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with self.subTest(valid=valid):
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v(valid)
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for invalid in invalid_usernames:
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with self.subTest(invalid=invalid):
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with self.assertRaises(ValidationError):
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v(invalid)
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def test_ascii_validator(self):
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valid_usernames = ["glenn", "GLEnN", "jean-marc"]
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invalid_usernames = [
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"o'connell",
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"Éric",
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"jean marc",
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"أحمد",
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"trailingnewline\n",
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]
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v = validators.ASCIIUsernameValidator()
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for valid in valid_usernames:
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with self.subTest(valid=valid):
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v(valid)
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for invalid in invalid_usernames:
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with self.subTest(invalid=invalid):
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with self.assertRaises(ValidationError):
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v(invalid)
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