Account API: enforce Enterprise policy on backend

openedx/features/enterprise_support/api.py

@@ -554,7 +554,7 @@ def get_enterprise_learner_data(user):
 
 
 @enterprise_is_enabled(otherwise={})
-def get_enterprise_customer_for_learner(site, user):
+def get_enterprise_customer_for_learner(user):
     """
     Return enterprise customer to whom given learner belongs.
     """

openedx/features/enterprise_support/utils.py

@@ -260,6 +260,13 @@ def update_account_settings_context_for_enterprise(context, enterprise_customer)
     context.update(enterprise_context)
 
 
+def get_enterprise_readonly_account_fields(user):
+    """
+    Returns a set of account fields that are read-only for enterprise users.
+    """
+    return set(settings.ENTERPRISE_READONLY_ACCOUNT_FIELDS) if is_enterprise_learner(user) else set()
+
+
 def get_enterprise_learner_generic_name(request):
     """
     Get a generic name concatenating the Enterprise Customer name and 'Learner'.