Fix normal user being able to update domain and his account resource limits

Author: erikbocks

server/src/main/java/com/cloud/resourcelimit/ResourceLimitManagerImpl.java

@@ -903,6 +903,12 @@ protected void addTaggedResourceLimits(List<ResourceLimitVO> limits, ResourceTyp
     public ResourceLimitVO updateResourceLimit(Long accountId, Long domainId, Integer typeId, Long max, String tag) {
         Account caller = CallContext.current().getCallingAccount();
 
+        if (caller.getType().equals(Account.Type.NORMAL)) {
+            logger.info("Throwing exception because only root admins and domain admins are allowed to update resource limits.");
+            throw new PermissionDeniedException("Your account does not have the right access level to update resource limits.");
+        }
+
+
         if (max == null) {
             max = (long)Resource.RESOURCE_UNLIMITED;
         } else if (max < Resource.RESOURCE_UNLIMITED) {