Enable dispatch of Authorization endpoint.

* Created URL route
* Expanded test code to confirm expected behavior

MA-2124

lms/djangoapps/oauth_dispatch/tests/constants.py

@@ -2,4 +2,4 @@
 Constants for testing purposes
 """
 
-DUMMY_REDIRECT_URL = u'https://example.edx/redirect'
+DUMMY_REDIRECT_URL = u'https://example.com/edx/redirect'

lms/djangoapps/oauth_dispatch/tests/test_views.py

@@ -8,6 +8,7 @@ import ddt
 from django.test import RequestFactory, TestCase
 from django.core.urlresolvers import reverse
 import httpretty
+from provider import constants
 
 from student.tests.factories import UserFactory
 from third_party_auth.tests.utils import ThirdPartyOAuthTestMixin, ThirdPartyOAuthTestMixinGoogle
@@ -37,7 +38,7 @@ class _DispatchingViewTestCase(TestCase):
             redirect_uri=DUMMY_REDIRECT_URL,
             client_id='dot-app-client-id',
         )
-        self.dop_client = self.dop_adapter.create_public_client(
+        self.dop_app = self.dop_adapter.create_public_client(
             name='test dop client',
             user=self.user,
             redirect_uri=DUMMY_REDIRECT_URL,
@@ -83,7 +84,7 @@ class TestAccessTokenView(mixins.AccessTokenMixin, _DispatchingViewTestCase):
 
         return body
 
-    @ddt.data('dop_client', 'dot_app')
+    @ddt.data('dop_app', 'dot_app')
     def test_access_token_fields(self, client_attr):
         client = getattr(self, client_attr)
         response = self._post_request(self.user, client)
@@ -94,7 +95,7 @@ class TestAccessTokenView(mixins.AccessTokenMixin, _DispatchingViewTestCase):
         self.assertIn('scope', data)
         self.assertIn('token_type', data)
 
-    @ddt.data('dop_client', 'dot_app')
+    @ddt.data('dop_app', 'dot_app')
     def test_jwt_access_token(self, client_attr):
         client = getattr(self, client_attr)
         response = self._post_request(self.user, client, token_type='jwt')
@@ -111,7 +112,7 @@ class TestAccessTokenView(mixins.AccessTokenMixin, _DispatchingViewTestCase):
         self.assertIn('refresh_token', data)
 
     def test_dop_public_client_access_token(self):
-        response = self._post_request(self.user, self.dop_client)
+        response = self._post_request(self.user, self.dop_app)
         self.assertEqual(response.status_code, 200)
         data = json.loads(response.content)
         self.assertNotIn('refresh_token', data)
@@ -133,7 +134,7 @@ class TestAccessTokenExchangeView(ThirdPartyOAuthTestMixinGoogle, ThirdPartyOAut
             'access_token': self.access_token,
         }
 
-    @ddt.data('dop_client', 'dot_app')
+    @ddt.data('dop_app', 'dot_app')
     def test_access_token_exchange_calls_dispatched_view(self, client_attr):
         client = getattr(self, client_attr)
         self.oauth_client = client
@@ -143,7 +144,7 @@ class TestAccessTokenExchangeView(ThirdPartyOAuthTestMixinGoogle, ThirdPartyOAut
 
 
 @ddt.ddt
-class TestAuthorizationView(TestCase):
+class TestAuthorizationView(_DispatchingViewTestCase):
     """
     Test class for AuthorizationView
     """
@@ -153,43 +154,81 @@ class TestAuthorizationView(TestCase):
     def setUp(self):
         super(TestAuthorizationView, self).setUp()
         self.user = UserFactory()
-        self.dop_client = self._create_confidential_client(user=self.user, client_id='dop-app-client-id')
-
-    def _create_confidential_client(self, user, client_id):
-        """
-        Create a confidential client suitable for testing purposes.
-        """
-        return self.dop_adapter.create_confidential_client(
-            name='test_app',
-            user=user,
-            client_id=client_id,
-            redirect_uri=DUMMY_REDIRECT_URL
+        self.dot_app = self.dot_adapter.create_confidential_client(
+            name='test dot application',
+            user=self.user,
+            redirect_uri=DUMMY_REDIRECT_URL,
+            client_id='confidential-dot-app-client-id',
+        )
+        self.dop_app = self.dop_adapter.create_confidential_client(
+            name='test dop client',
+            user=self.user,
+            redirect_uri=DUMMY_REDIRECT_URL,
+            client_id='confidential-dop-app-client-id',
         )
 
-    def test_authorization_view(self):
+    @ddt.data(
+        ('dop', 'authorize'),
+        ('dot', 'allow')
+    )
+    @ddt.unpack
+    def test_post_authorization_view(self, client_type, allow_field):
+        oauth_application = getattr(self, '{}_app'.format(client_type))
         self.client.login(username=self.user.username, password='test')
         response = self.client.post(
             '/oauth2/authorize/',
             {
-                'client_id': self.dop_client.client_id,  # TODO: DOT is not yet supported (MA-2124)
+                'client_id': oauth_application.client_id,
                 'response_type': 'code',
                 'state': 'random_state_string',
                 'redirect_uri': DUMMY_REDIRECT_URL,
+                'scope': 'profile email',
+                allow_field: True,
             },
             follow=True,
         )
 
-        self.assertEqual(response.status_code, 200)
+        check_response = getattr(self, '_check_{}_response'.format(client_type))
+        check_response(response)
+
+    def _check_dot_response(self, response):
+        """
+        Check that django-oauth-toolkit gives an appropriate authorization response.
+        """
+        # django-oauth-toolkit tries to redirect to the user's redirect URL
+        self.assertEqual(response.status_code, 404)  # We used a non-existent redirect url.
+        expected_redirect_prefix = u'{}?'.format(DUMMY_REDIRECT_URL)
+        self._assert_startswith(self._redirect_destination(response), expected_redirect_prefix)
 
-        # check form is in context and form params are valid
-        context = response.context_data  # pylint: disable=no-member
-        self.assertIn('form', context)
-        self.assertIsNone(context['form']['authorize'].value())
+    def _check_dop_response(self, response):
+        """
+        Check that django-oauth2-provider gives an appropriate authorization response.
+        """
+        # django-oauth-provider redirects to a confirmation page
+        self.assertRedirects(response, u'http://testserver/oauth2/authorize/confirm', target_status_code=200)
+
+        context = response.context_data
+        form = context['form']
+        self.assertIsNone(form['authorize'].value())
 
-        self.assertIn('oauth_data', context)
         oauth_data = context['oauth_data']
         self.assertEqual(oauth_data['redirect_uri'], DUMMY_REDIRECT_URL)
         self.assertEqual(oauth_data['state'], 'random_state_string')
+        # TODO: figure out why it chooses this scope.
+        self.assertEqual(oauth_data['scope'], constants.READ_WRITE)
+
+    def _assert_startswith(self, string, prefix):
+        """
+        Assert that the string starts with the specified prefix.
+        """
+        self.assertTrue(string.startswith(prefix), u'{} does not start with {}'.format(string, prefix))
+
+    @staticmethod
+    def _redirect_destination(response):
+        """
+        Return the final destination of the redirect chain in the response object
+        """
+        return response.redirect_chain[-1][0]
 
 
 class TestViewDispatch(TestCase):
@@ -232,26 +271,40 @@ class TestViewDispatch(TestCase):
         self.assertTrue(args, msg_no_request)
         self.assertEqual(args[0], 'request')
 
-    def _get_request(self, client_id):
+    def _post_request(self, client_id):
         """
         Return a request with the specified client_id in the body
         """
         return RequestFactory().post('/', {'client_id': client_id})
 
-    def test_dispatching_to_dot(self):
+    def _get_request(self, client_id):
+        """
+        Return a request with the specified client_id in the get parameters
+        """
+        return RequestFactory().get('/?client_id={}'.format(client_id))
+
+    def test_dispatching_post_to_dot(self):
+        request = self._post_request('dot-id')
+        self.assertEqual(self.view.select_backend(request), self.dot_adapter.backend)
+
+    def test_dispatching_post_to_dop(self):
+        request = self._post_request('dop-id')
+        self.assertEqual(self.view.select_backend(request), self.dop_adapter.backend)
+
+    def test_dispatching_get_to_dot(self):
         request = self._get_request('dot-id')
         self.assertEqual(self.view.select_backend(request), self.dot_adapter.backend)
 
-    def test_dispatching_to_dop(self):
+    def test_dispatching_get_to_dop(self):
         request = self._get_request('dop-id')
         self.assertEqual(self.view.select_backend(request), self.dop_adapter.backend)
 
     def test_dispatching_with_no_client(self):
-        request = self._get_request(None)
+        request = self._post_request(None)
         self.assertEqual(self.view.select_backend(request), self.dop_adapter.backend)
 
     def test_dispatching_with_invalid_client(self):
-        request = self._get_request('abcesdfljh')
+        request = self._post_request('abcesdfljh')
         self.assertEqual(self.view.select_backend(request), self.dop_adapter.backend)
 
     def test_get_view_for_dot(self):

lms/djangoapps/oauth_dispatch/urls.py

@@ -11,7 +11,7 @@ from . import views
 
 urlpatterns = patterns(
     '',
-    # TODO: authorize/ URL not yet supported for DOT (MA-2124)
+    url(r'^authorize/?$', csrf_exempt(views.AuthorizationView.as_view()), name='authorize'),
     url(r'^access_token/?$', csrf_exempt(views.AccessTokenView.as_view()), name='access_token'),
 )
 

lms/djangoapps/oauth_dispatch/views.py

@@ -74,7 +74,10 @@ class _DispatchingView(View):
         """
         Return the client_id from the provided request
         """
-        return request.POST.get('client_id')
+        if request.method == u'GET':
+            return request.GET.get('client_id')
+        else:
+            return request.POST.get('client_id')
 
 
 class AccessTokenView(_DispatchingView):