Extend ModelBackend instead of rolling our own

utils/backend.py

@@ -1,26 +1,13 @@
 
 import logging
 
-from membership.models import CustomUser
+from django.contrib.auth.backends import ModelBackend
 logger = logging.getLogger(__name__)
 
 
-class MyLDAPBackend(object):
-    def authenticate(self, email, password):
-        try:
-            user = CustomUser.objects.get(email=email)
-        except CustomUser.DoesNotExist:
-            # User does not exists in Database
-            return None
-        else:
+class MyLDAPBackend(ModelBackend):
+    def authenticate(self, username=None, password=None, **kwargs):
+        user = super().authenticate(username, password, **kwargs)
+        if user:
             user.create_ldap_account(password)
-            if user.check_password(password):
-                return user
-            else:
-                return None
-
-    def get_user(self, user_id):
-        try:
-            return CustomUser.objects.get(pk=user_id)
-        except CustomUser.DoesNotExist:
-            return None
+        return user