[jira] [Created] (KAFKA-18754) Allow PlainSaslServer to pass client info through the negotiated properties.

["Nelson B. (Jira)" <ji...@apache.org>]

Nelson B. created KAFKA-18754:
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             Summary: Allow PlainSaslServer to pass client info through the negotiated properties.
                 Key: KAFKA-18754
                 URL: https://issues.apache.org/jira/browse/KAFKA-18754
             Project: Kafka
          Issue Type: Improvement
            Reporter: Nelson B.
            Assignee: Nelson B.


In our organization, we use a custom Kafka authorizer that makes decisions based on client roles assigned by our IAM server. We've also implemented a custom {{PlainServerCallbackHandler}} that authenticates clients using their username and password through the IAM server. The IAM server also returns client info, such as assigned roles, but we're facing an issue—{{{}PlainSaslServer{}}} can only pass the {{authorizationID}} to the authorizer, meaning the client info is lost. To solve this, we want to extend {{PlainSaslServer}} so it can pass client info through the negotiated properties.



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