d8tltanc commented on a change in pull request #9485:
URL: https://github.com/apache/kafka/pull/9485#discussion_r545577772
##########
File path:
clients/src/main/java/org/apache/kafka/server/authorizer/Authorizer.java
##########
@@ -139,4 +152,133 @@
* @return Iterator for ACL bindings, which may be populated lazily.
*/
Iterable<AclBinding> acls(AclBindingFilter filter);
+
+ /**
+ * Check if the caller is authorized to perform the given ACL operation on
at least one
+ * resource of the given type.
+ *
+ * It is important to override this interface default in implementations
because
+ * 1. The interface default iterates all AclBindings multiple times,
without any indexing,
+ * which is a CPU intense work.
+ * 2. The interface default rebuild several sets of strings, which is a
memory intense work.
+ * 3. The interface default cannot perform the audit logging properly
+ *
+ * @param requestContext Request context including request resourceType,
security protocol, and listener name
+ * @param op The ACL operation to check
+ * @param resourceType The resource type to check
+ * @return Return {@link AuthorizationResult#ALLOWED} if the
caller is authorized to perform the
+ * given ACL operation on at least one resource of
the given type.
+ * Return {@link AuthorizationResult#DENIED}
otherwise.
+ */
+ default AuthorizationResult
authorizeByResourceType(AuthorizableRequestContext requestContext, AclOperation
op, ResourceType resourceType) {
+ SecurityUtils.authorizeByResourceTypeCheckArgs(op, resourceType);
+
+ if (authorize(requestContext, Collections.singletonList(new Action(
Review comment:
// Check a hard-coded name to ensure that super users are granted
// access regardless of DENY ACLs.
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