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- import random
- import string
- import time
- from django.test import TestCase
- from django.test.utils import override_settings
- from django.contrib.auth.models import User
- from django.core.urlresolvers import NoReverseMatch
- from django.core.urlresolvers import reverse
- from axes.decorators import COOLOFF_TIME
- from axes.decorators import FAILURE_LIMIT
- from axes.models import AccessLog
- from axes.signals import user_locked_out
- from axes.utils import reset
- class AccessAttemptTest(TestCase):
- """Test case using custom settings for testing
- """
- VALID_USERNAME = 'valid-username'
- VALID_PASSWORD = 'valid-password'
- LOCKED_MESSAGE = 'Account locked: too many login attempts.'
- LOGIN_FORM_KEY = '<input type="submit" value="Log in" />'
- def _login(self, is_valid_username=False, is_valid_password=False, user_agent='test-browser'):
- """Login a user. A valid credential is used when is_valid_username is True,
- otherwise it will use a random string to make a failed login.
- """
- try:
- admin_login = reverse('admin:login')
- except NoReverseMatch:
- admin_login = reverse('admin:index')
- if is_valid_username:
- # Use a valid username
- username = self.VALID_USERNAME
- else:
- # Generate a wrong random username
- chars = string.ascii_uppercase + string.digits
- username = ''.join(random.choice(chars) for x in range(10))
- if is_valid_password:
- password = self.VALID_PASSWORD
- else:
- password = 'invalid-password'
- response = self.client.post(admin_login, {
- 'username': username,
- 'password': password,
- 'this_is_the_login_form': 1,
- }, HTTP_USER_AGENT=user_agent)
- return response
- def setUp(self):
- """Create a valid user for login
- """
- self.user = User.objects.create_superuser(
- username=self.VALID_USERNAME,
- email='test@example.com',
- password=self.VALID_PASSWORD,
- )
- def test_failure_limit_once(self):
- """Tests the login lock trying to login one more time
- than failure limit
- """
- for i in range(1, FAILURE_LIMIT): # test until one try before the limit
- response = self._login()
- # Check if we are in the same login page
- self.assertContains(response, self.LOGIN_FORM_KEY)
- # So, we shouldn't have gotten a lock-out yet.
- # But we should get one now
- response = self._login()
- self.assertContains(response, self.LOCKED_MESSAGE)
- def test_failure_limit_many(self):
- """Tests the login lock trying to login a lot of times more
- than failure limit
- """
- for i in range(1, FAILURE_LIMIT):
- response = self._login()
- # Check if we are in the same login page
- self.assertContains(response, self.LOGIN_FORM_KEY)
- # So, we shouldn't have gotten a lock-out yet.
- # We should get a locked message each time we try again
- for i in range(0, random.randrange(1, FAILURE_LIMIT)):
- response = self._login()
- self.assertContains(response, self.LOCKED_MESSAGE)
- def test_valid_login(self):
- """Tests a valid login for a real username
- """
- response = self._login(is_valid_username=True, is_valid_password=True)
- self.assertNotContains(response, self.LOGIN_FORM_KEY, status_code=302)
- def test_valid_logout(self):
- """Tests a valid logout and make sure the logout_time is updated
- """
- response = self._login(is_valid_username=True, is_valid_password=True)
- self.assertEquals(AccessLog.objects.latest('id').logout_time, None)
- response = self.client.get(reverse('admin:logout'))
- self.assertNotEquals(AccessLog.objects.latest('id').logout_time, None)
- self.assertContains(response, 'Logged out')
- def test_cooling_off(self):
- """Tests if the cooling time allows a user to login
- """
- self.test_failure_limit_once()
- # Wait for the cooling off period
- time.sleep(COOLOFF_TIME.total_seconds())
- # It should be possible to login again, make sure it is.
- self.test_valid_login()
- def test_cooling_off_for_trusted_user(self):
- """Test the cooling time for a trusted user
- """
- # Test successful login-logout, this makes the user trusted.
- self.test_valid_logout()
- # Try the cooling off time
- self.test_cooling_off()
- def test_long_user_agent_valid(self):
- """Tests if can handle a long user agent
- """
- long_user_agent = 'ie6' * 1024
- response = self._login(is_valid_username=True, is_valid_password=True, user_agent=long_user_agent)
- self.assertNotContains(response, self.LOGIN_FORM_KEY, status_code=302)
- def test_long_user_agent_not_valid(self):
- """Tests if can handle a long user agent with failure
- """
- long_user_agent = 'ie6' * 1024
- for i in range(0, FAILURE_LIMIT + 1):
- response = self._login(user_agent=long_user_agent)
- self.assertContains(response, self.LOCKED_MESSAGE)
- def test_reset_ip(self):
- """Tests if can reset an ip address
- """
- # Make a lockout
- self.test_failure_limit_once()
- # Reset the ip so we can try again
- reset(ip='127.0.0.1')
- # Make a login attempt again
- self.test_valid_login()
- def test_reset_all(self):
- """Tests if can reset all attempts
- """
- # Make a lockout
- self.test_failure_limit_once()
- # Reset all attempts so we can try again
- reset()
- # Make a login attempt again
- self.test_valid_login()
- def test_send_lockout_signal(self):
- """Test if the lockout signal is emitted
- """
- class Scope(object): pass # this "hack" is needed so we don't have to use global variables or python3 features
- scope = Scope()
- scope.signal_received = 0
- def signal_handler(request, username, ip_address, *args, **kwargs):
- scope.signal_received += 1
- self.assertIsNotNone(request)
- # Connect signal handler
- user_locked_out.connect(signal_handler)
- # Make a lockout
- self.test_failure_limit_once()
- self.assertEquals(scope.signal_received, 1)
- reset()
- # Make another lockout
- self.test_failure_limit_once()
- self.assertEquals(scope.signal_received, 2)
- @override_settings(AXES_LOCK_OUT_BY_COMBINATION_USER_AND_IP=True)
- def test_lockout_by_combination_user_and_ip(self):
- """Tests the login lock with a valid username and invalid password
- when AXES_LOCK_OUT_BY_COMBINATION_USER_AND_IP is True
- """
- for i in range(1, FAILURE_LIMIT): # test until one try before the limit
- response = self._login(is_valid_username=True, is_valid_password=False)
- # Check if we are in the same login page
- self.assertContains(response, self.LOGIN_FORM_KEY)
- # So, we shouldn't have gotten a lock-out yet.
- # But we should get one now
- response = self._login(is_valid_username=True, is_valid_password=False)
- self.assertContains(response, self.LOCKED_MESSAGE)
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