[GitHub] [pulsar] rdhabalia commented on pull request #6782: [pulsar-storm] Fix: Authentication is failing with storm adapter

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rdhabalia commented on pull request #6782:
URL: https://github.com/apache/pulsar/pull/6782#issuecomment-619296983


   @shiv4289 
   > If authentication is non-transient, the auth token would get stored which has 2 implications:
   
   Umm.. If we serialize `AuthenticationToken` then it won't serialize token and store it instead it tries to serialize tokenSupplier and if supplier fetches token dynamically then there shouldn't be the issue. But in `AuthenticationToken` class it can be the issue as it keeps token in memory.
   
   [AuthenticationToken.java](https://github.com/apache/pulsar/blob/master/pulsar-client/src/main/java/org/apache/pulsar/client/impl/auth/AuthenticationToken.java#L41) is not serializble because `supplierToken` is not serializble. To address security issue and serialiable issue, can't we just mark `supplierToken` as a transient field and #4284  is anyway builds `Authentication` from auth-plugin classname and param. So, we can still have `Authentication` serializable and if any Auth-impl class has non-serializable variable then it can be transient and auth can be build using params.
   
   > I see the current patch keeps Authentication transient . Is this the final decision then?
   
   No, I was waiting for the reply with auth-classname which is not serializable. #4284 completely broke storm-adapter because user sets auths using ClientBuilder which doesn't set authPlugin/param into `ClientConfigurationData` and storm internally passes `ClientConfigurationData` to PulsarClient so, it always sees authentication null. I have added another commit to fix that issue: https://github.com/apache/pulsar/pull/6782/commits/92510e166ecbc17e78dd89ccae46049910c87c0c 


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