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Renew on already authenticated + Misc tests

Browse source 
Renew paramater:
- By default, CAS client will use renew parameter if user already
authenticates via a CAS server. If always False, he can't
reauthenticate on a CAS server due to the single sign-on CAS feature
(except if he logouts of CAS on his own).

Tests:
- patch_cas_reponse now returns a correct CAS client taking into
account the version attribute of the CAS adapter.
- Some moves happens between testcases et al.
- Delete old and now unused fake CAS client classes.
This commit is contained in:
Aurélien Delobelle 2017-07-28 15:31:37 +02:00
parent b1165d39af
commit 049cf22b42
6 changed files with 147 additions and 77 deletions
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64
allauth_cas/test/testcases.py
View file

@ -4,6 +4,7 @@ try:
except ImportError:
from mock import patch
import django
from django.conf import settings
from django.test import TestCase
@ -11,9 +12,35 @@ import cas
from allauth_cas import CAS_PROVIDER_SESSION_KEY
if django.VERSION >= (1, 10):
from django.urls import reverse
else:
from django.core.urlresolvers import reverse
class CASTestCase(TestCase):
def client_cas_login(
self,
client, provider_id='theid',
username=None, attributes={}):
"""
Authenticate client through provider_id.
Returns the response of the callback view.
username and attributes control the CAS server response when ticket is
checked.
"""
self.patch_cas_response(
valid_ticket='__all__',
username=username, attributes=attributes,
)
callback_url = reverse('{id}_callback'.format(id=provider_id))
r = client.get(callback_url, {'ticket': 'fake-ticket'})
self.patch_cas_response_stop()
return r
def patch_cas_response(
self,
valid_ticket,
@ -41,34 +68,53 @@ class CASTestCase(TestCase):
ticket retrieved from GET parameter on request on the callback view).
"""
if hasattr(self, '_patch_cas_client'):
self.patch_cas_client_stop()
self.patch_cas_response_stop()
class MockCASClient(cas.CASClientV2):
class MockCASClient(object):
_username = username
def __init__(self_client, *args, **kwargs):
kwargs.pop('version')
super(MockCASClient, self_client).__init__(*args, **kwargs)
def __new__(self_client, *args, **kwargs):
version = kwargs.pop('version')
if version in (1, '1'):
client_class = cas.CASClientV1
elif version in (2, '2'):
client_class = cas.CASClientV2
elif version in (3, '3'):
client_class = cas.CASClientV3
elif version == 'CAS_2_SAML_1_0':
client_class = cas.CASClientWithSAMLV1
else:
raise ValueError('Unsupported CAS_VERSION %r' % version)
def verify_ticket(self_client, ticket):
client_class._username = self_client._username
def verify_ticket(self, ticket):
if valid_ticket == '__all__' or ticket == valid_ticket:
username = self_client._username or 'username'
username = self._username or 'username'
return username, attributes, None
return None, {}, None
patcher = patch.object(
client_class, 'verify_ticket',
new=verify_ticket,
)
patcher.start()
return client_class(*args, **kwargs)
self._patch_cas_client = patch(
'allauth_cas.views.cas.CASClient',
MockCASClient,
)
self._patch_cas_client.start()
def patch_cas_client_stop(self):
def patch_cas_response_stop(self):
self._patch_cas_client.stop()
del self._patch_cas_client
def tearDown(self):
if hasattr(self, '_patch_cas_client'):
self.patch_cas_client_stop()
self.patch_cas_response_stop()
class CASViewTestCase(CASTestCase):

14
allauth_cas/views.py
View file

@ -28,12 +28,22 @@ class AuthAction(object):
class CASAdapter(object):
# CAS client parameters
renew = False
def __init__(self, request):
self.request = request
@property
def renew(self):
"""
If user is already authenticated on Django, he may already been
connected to CAS, but still may want to use another CAS account.
We set renew to True in this case, as the CAS server won't use the
single sign-on.
To specifically check, if the current user has used a CAS server,
we check if the CAS session key is set.
"""
return CAS_PROVIDER_SESSION_KEY in self.request.session
def get_provider(self):
"""
Returns a provider instance for the current request.

37
tests/cas_clients.py
View file

@ -1,37 +0,0 @@
# -*- coding: utf-8 -*-
import cas
class MockCASClient(cas.CASClientV2):
"""
Base class to mock cas.CASClient
"""
def __init__(self, *args, **kwargs):
kwargs.pop('version')
super(MockCASClient, self).__init__(*args, **kwargs)
class VerifyCASClient(MockCASClient):
"""
CAS client which verifies ticket is '123456'.
"""
def verify_ticket(self, ticket):
if ticket == '123456':
return 'username', {}, None
return None, {}, None
class AcceptCASClient(MockCASClient):
"""
CAS client which accepts all tickets.
"""
def verify_ticket(self, ticket):
return 'username', {}, None
class RejectCASClient(MockCASClient):
"""
CAS client which rejects all tickets.
"""
def verify_ticket(self, ticket):
return None, {}, None

25
tests/test_flows.py
View file

@ -1,33 +1,16 @@
# -*- coding: utf-8 -*-
try:
from unittest.mock import patch
except ImportError:
from mock import patch
from django.contrib import messages
from django.contrib.auth import get_user_model
from django.contrib.messages.api import get_messages
from django.contrib.messages.storage.base import Message
from django.test import TestCase, override_settings
from django.test import override_settings
from .cas_clients import AcceptCASClient
from allauth_cas.test.testcases import CASTestCase
User = get_user_model()
@patch('allauth_cas.views.cas.CASClient', AcceptCASClient)
def client_cas_login(client):
"""
Sign in client through the example CAS provider.
Returns the response of callbacK view.
"""
r = client.get('/accounts/theid/login/callback/', {
'ticket': 'fake-ticket',
})
return r
class LogoutFlowTests(TestCase):
class LogoutFlowTests(CASTestCase):
expected_msg_str = (
"To logout of CAS, please close your browser, or visit this "
"<a href=\"/accounts/theid/logout/?next=%2Faccounts%2Flogout%2F\">"
@ -35,7 +18,7 @@ class LogoutFlowTests(TestCase):
)
def setUp(self):
client_cas_login(self.client)
self.client_cas_login(self.client)
def assertCASLogoutNotInMessages(self, response):
r_messages = get_messages(response.wsgi_request)

51
tests/test_testcases.py
View file

@ -1,11 +1,60 @@
# -*- coding: utf-8 -*-
from django.test import Client
from django.test import Client, RequestFactory
from allauth_cas.test.testcases import CASViewTestCase
from allauth_cas.views import CASView
from .example.views import ExampleCASAdapter
class CASTestCaseTests(CASViewTestCase):
def test_patch_cas_response_client_version(self):
"""
python-cas uses multiple client classes depending on the CAS server
version.
patch_cas_response patch must also returns the correct class.
"""
valid_versions = [
1, '1',
2, '2',
3, '3',
'CAS_2_SAML_1_0',
]
invalid_versions = [
'not_supported',
]
factory = RequestFactory()
request = factory.get('/path/')
request.session = {}
for _version in valid_versions + invalid_versions:
class BasicCASAdapter(ExampleCASAdapter):
version = _version
class BasicCASView(CASView):
def dispatch(self, request, *args, **kwargs):
return self.get_client(request)
view = BasicCASView.adapter_view(BasicCASAdapter)
if _version in valid_versions:
raw_client = view(request)
self.patch_cas_response(valid_ticket='__all__')
mocked_client = view(request)
self.assertEqual(type(raw_client), type(mocked_client))
else:
# This is a sanity check.
self.assertRaises(ValueError, view, request)
self.patch_cas_response(valid_ticket='__all__')
self.assertRaises(ValueError, view, request)
def test_patch_cas_response_verify_success(self):
self.patch_cas_response(valid_ticket='123456')
r = self.client.get('/accounts/theid/login/callback/', {

27
tests/test_views.py
View file

@ -5,10 +5,10 @@ except ImportError:
from mock import patch
import django
from django.test import RequestFactory, TestCase, override_settings
from django.test import RequestFactory, override_settings
from allauth_cas.exceptions import CASAuthenticationError
from allauth_cas.test.testcases import CASViewTestCase
from allauth_cas.test.testcases import CASTestCase, CASViewTestCase
from allauth_cas.views import CASView
from .example.views import ExampleCASAdapter
@ -19,11 +19,12 @@ else:
from django.core.urlresolvers import reverse
class CASAdapterTests(TestCase):
class CASAdapterTests(CASTestCase):
def setUp(self):
factory = RequestFactory()
self.request = factory.get('/path/')
self.request.session = {}
self.adapter = ExampleCASAdapter(self.request)
def test_get_service_url(self):
@ -61,6 +62,23 @@ class CASAdapterTests(TestCase):
})
self.assertEqual(expected, callback_url)
def test_renew(self):
"""
From an anonymous request, renew is False to let using the single
sign-on.
"""
self.assertFalse(self.adapter.renew)
def test_renew_authenticated(self):
"""
If user has been authenticated to the application through CAS, and
tries to reauthenticate, renew is set to True to opt-out the single
sign-on.
"""
r = self.client_cas_login(self.client)
adapter = ExampleCASAdapter(r.wsgi_request)
self.assertTrue(adapter.renew)
class CASViewTests(CASViewTestCase):
@ -70,7 +88,8 @@ class CASViewTests(CASViewTestCase):
def setUp(self):
factory = RequestFactory()
self.request = factory.get('path')
self.request = factory.get('/path/')
self.request.session = {}
self.cas_view = self.BasicCASView.adapter_view(ExampleCASAdapter)