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from datetime import datetime
from django.conf import settings
from django.contrib.auth.backends import RemoteUserBackend
from django.contrib.auth.models import User
from django.test import TestCase
class RemoteUserTest(TestCase):
urls = 'django.contrib.auth.tests.urls'
middleware = 'django.contrib.auth.middleware.RemoteUserMiddleware'
backend = 'django.contrib.auth.backends.RemoteUserBackend'
# Usernames to be passed in REMOTE_USER for the test_known_user test case.
known_user = 'knownuser'
known_user2 = 'knownuser2'
def setUp(self):
self.curr_middleware = settings.MIDDLEWARE_CLASSES
self.curr_auth = settings.AUTHENTICATION_BACKENDS
settings.MIDDLEWARE_CLASSES += (self.middleware,)
settings.AUTHENTICATION_BACKENDS = (self.backend,)
def test_no_remote_user(self):
"""
Tests requests where no remote user is specified and insures that no
users get created.
"""
num_users = User.objects.count()
response = self.client.get('/remote_user/')
self.assert_(response.context['user'].is_anonymous())
self.assertEqual(User.objects.count(), num_users)
response = self.client.get('/remote_user/', REMOTE_USER=None)
self.assert_(response.context['user'].is_anonymous())
self.assertEqual(User.objects.count(), num_users)
response = self.client.get('/remote_user/', REMOTE_USER='')
self.assert_(response.context['user'].is_anonymous())
self.assertEqual(User.objects.count(), num_users)
def test_unknown_user(self):
"""
Tests the case where the username passed in the header does not exist
as a User.
"""
num_users = User.objects.count()
response = self.client.get('/remote_user/', REMOTE_USER='newuser')
self.assertEqual(response.context['user'].username, 'newuser')
self.assertEqual(User.objects.count(), num_users + 1)
User.objects.get(username='newuser')
# Another request with same user should not create any new users.
response = self.client.get('/remote_user/', REMOTE_USER='newuser')
self.assertEqual(User.objects.count(), num_users + 1)
def test_known_user(self):
"""
Tests the case where the username passed in the header is a valid User.
"""
User.objects.create(username='knownuser')
User.objects.create(username='knownuser2')
num_users = User.objects.count()
response = self.client.get('/remote_user/', REMOTE_USER=self.known_user)
self.assertEqual(response.context['user'].username, 'knownuser')
self.assertEqual(User.objects.count(), num_users)
# Test that a different user passed in the headers causes the new user
# to be logged in.
response = self.client.get('/remote_user/', REMOTE_USER=self.known_user2)
self.assertEqual(response.context['user'].username, 'knownuser2')
self.assertEqual(User.objects.count(), num_users)
def test_last_login(self):
"""
Tests that a user's last_login is set the first time they make a
request but not updated in subsequent requests with the same session.
"""
user = User.objects.create(username='knownuser')
# Set last_login to something so we can determine if it changes.
default_login = datetime(2000, 1, 1)
user.last_login = default_login
user.save()
response = self.client.get('/remote_user/', REMOTE_USER=self.known_user)
self.assertNotEqual(default_login, response.context['user'].last_login)
user = User.objects.get(username='knownuser')
user.last_login = default_login
user.save()
response = self.client.get('/remote_user/', REMOTE_USER=self.known_user)
self.assertEqual(default_login, response.context['user'].last_login)
def tearDown(self):
"""Restores settings to avoid breaking other tests."""
settings.MIDDLEWARE_CLASSES = self.curr_middleware
settings.AUTHENTICATION_BACKENDS = self.curr_auth
class RemoteUserNoCreateBackend(RemoteUserBackend):
"""Backend that doesn't create unknown users."""
create_unknown_user = False
class RemoteUserNoCreateTest(RemoteUserTest):
"""
Contains the same tests as RemoteUserTest, but using a custom auth backend
class that doesn't create unknown users.
"""
backend =\
'django.contrib.auth.tests.remote_user.RemoteUserNoCreateBackend'
def test_unknown_user(self):
num_users = User.objects.count()
response = self.client.get('/remote_user/', REMOTE_USER='newuser')
self.assert_(response.context['user'].is_anonymous())
self.assertEqual(User.objects.count(), num_users)
class CustomRemoteUserBackend(RemoteUserBackend):
"""
Backend that overrides RemoteUserBackend methods.
"""
def clean_username(self, username):
"""
Grabs username before the @ character.
"""
return username.split('@')[0]
def configure_user(self, user):
"""
Sets user's email address.
"""
user.email = 'user@example.com'
user.save()
return user
class RemoteUserCustomTest(RemoteUserTest):
"""
Tests a custom RemoteUserBackend subclass that overrides the clean_username
and configure_user methods.
"""
backend =\
'django.contrib.auth.tests.remote_user.CustomRemoteUserBackend'
# REMOTE_USER strings with e-mail addresses for the custom backend to
# clean.
known_user = 'knownuser@example.com'
known_user2 = 'knownuser2@example.com'
def test_known_user(self):
"""
The strings passed in REMOTE_USER should be cleaned and the known users
should not have been configured with an email address.
"""
super(RemoteUserCustomTest, self).test_known_user()
self.assertEqual(User.objects.get(username='knownuser').email, '')
self.assertEqual(User.objects.get(username='knownuser2').email, '')
def test_unknown_user(self):
"""
The unknown user created should be configured with an email address.
"""
super(RemoteUserCustomTest, self).test_unknown_user()
newuser = User.objects.get(username='newuser')
self.assertEqual(newuser.email, 'user@example.com')
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