Updated throttle

ECOM-4277

course_discovery/apps/core/tests/test_throttles.py

 from django.core.cache import cache
 from django.core.urlresolvers import reverse
-
 from rest_framework.test import APITestCase
 
 from course_discovery.apps.core.models import UserThrottleRate
@@ -48,7 +47,3 @@ class RateLimitingTest(APITestCase):
         self.user.save()
         response = self._make_requests()
         self.assertEqual(response.status_code, 200)
-
-    def test_anonymous_throttling(self):
-        self.client.logout()
-        self.test_rate_limiting()

course_discovery/apps/core/throttles.py

@@ -9,9 +9,10 @@ class OverridableUserRateThrottle(UserRateThrottle):
 
     def allow_request(self, request, view):
         user = request.user
-        if user.is_superuser:
-            return True
-        if not user.is_anonymous():
+
+        if user and user.is_authenticated():
+            if user.is_superuser:
+                return True
             try:
                 # Override this throttle's rate if applicable
                 user_throttle = UserThrottleRate.objects.get(user=user)
@@ -19,4 +20,5 @@ class OverridableUserRateThrottle(UserRateThrottle):
                 self.num_requests, self.duration = self.parse_rate(self.rate)
             except UserThrottleRate.DoesNotExist:
                 pass
+
         return super(OverridableUserRateThrottle, self).allow_request(request, view)