[jira] [Created] (GEODE-8782) Add getPrincipal method to FunctionContext interface

["Jens Deppe (Jira)" <ji...@apache.org>]

Jens Deppe created GEODE-8782:
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             Summary: Add getPrincipal method to FunctionContext interface
                 Key: GEODE-8782
                 URL: https://issues.apache.org/jira/browse/GEODE-8782
             Project: Geode
          Issue Type: New Feature
          Components: core
            Reporter: Jens Deppe


In some cases it would be very helpful to have access to the {{Principal}} when executing a function.

It may seem obvious that if one has a reference to the {{cache}} that you could get to the {{SecurityManager}} and extract the {{Subject}} and thus the {{Principal}} from there. However, in some cases, Geode will seamlessly proxy a function call from one server to the other. This will typically happen with {{onRegion}} calls and partitioned regions. In such cases, the security context is lost and thus the principal is not accessible.



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