Add a method to refresh the id_token.

Author: akatsoulas

mozilla_django_oidc/contrib/__init__.py

@@ -0,0 +1,18 @@
+import requests
+
+from mozilla_django_oidc.utils import import_from_settings
+
+
+def refresh_id_token(id_token):
+    """Renews the id_token from the delegation endpoint in Auth0."""
+    delegation_url = 'https://{0}/delegation'.format(import_from_settings('OIDC_OP_DOMAIN'))
+    data = {
+        'client_id': import_from_settings('OIDC_RP_CLIENT_ID'),
+        'grant_type': 'urn:ietf:params:oauth:grant-type:jwt-bearer',
+        'id_token': id_token,
+        'api_type': 'app'
+    }
+
+    response = requests.post(delegation_url, data=data)
+    response.raise_for_status()
+    return response.json().get('id_token')

mozilla_django_oidc/contrib/auth0/__init__.py

@@ -109,6 +109,7 @@ class OIDCLogoutView(View):
 
     @property
     def redirect_url(self):
+        """Return the logout url defined in settings."""
         return import_from_settings('LOGOUT_REDIRECT_URL', '/')
 
     def get(self, request):

mozilla_django_oidc/contrib/auth0/utils.py

@@ -0,0 +1,34 @@
+import requests
+from mock import Mock, patch
+
+from django.test import TestCase, override_settings
+
+from mozilla_django_oidc.contrib.auth0.utils import refresh_id_token
+
+
+class Auth0UtilsTestCase(TestCase):
+    """Tests for the Auth0 utils."""
+
+    @override_settings(OIDC_RP_CLIENT_ID='client_id')
+    @override_settings(OIDC_OP_DOMAIN='op_domain')
+    @patch('mozilla_django_oidc.contrib.auth0.utils.requests.post')
+    def test_successful_refresh_token(self, mock_post):
+        """Test a successful attempt for a refresh id_token."""
+        mock_response = Mock()
+        mock_response.json.return_value = {
+            'id_token': 'foobar'
+        }
+        mock_post.return_value = mock_response
+        self.assertEqual(refresh_id_token('token'), 'foobar')
+
+    @override_settings(OIDC_RP_CLIENT_ID='client_id')
+    @override_settings(OIDC_OP_DOMAIN='op_domain')
+    @patch('mozilla_django_oidc.contrib.auth0.utils.requests.post')
+    def test_unsuccessful_attempt(self, mock_post):
+        """Test an attempt to get a refresh token that raises an error."""
+        mock_response = Mock()
+        http_error = requests.exceptions.HTTPError()
+        mock_response.raise_for_status.side_effect = http_error
+        mock_post.return_value = mock_response
+        with self.assertRaises(Exception):
+            self.assertEqual(refresh_id_token('token'), None)