Fix issue #11: Allow null e-mail addresses

Author: Stan Hu

rest_framework_jwt/authentication.py

@@ -65,7 +65,7 @@ def authenticate_credentials(self, payload):
             user_id = payload.get('user_id')
             email = payload.get('email')
 
-            if user_id and email:
+            if user_id:
                 user = User.objects.get(pk=user_id, email=email, is_active=True)
             else:
                 msg = 'Invalid payload'

rest_framework_jwt/tests/test_authentication.py

@@ -208,7 +208,7 @@ def test_post_form_passing_jwt_invalid_payload(self):
         """
         Ensure POSTing json over JWT auth with invalid payload fails
         """
-        payload = dict(user_id=1, email=None)
+        payload = dict(email=None)
         token = utils.jwt_encode_handler(payload)
 
         auth = 'JWT {0}'.format(token)