[jira] [Created] (AURORA-1746) Shiro authorization errors could be friendlier

["Benjamin Staffin (JIRA)" <ji...@apache.org>]

Benjamin Staffin created AURORA-1746:
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             Summary: Shiro authorization errors could be friendlier
                 Key: AURORA-1746
                 URL: https://issues.apache.org/jira/browse/AURORA-1746
             Project: Aurora
          Issue Type: Story
          Components: Scheduler
            Reporter: Benjamin Staffin
            Priority: Minor


When the scheduler is configured to use Kerberos auth with shiro, the error messages it returns to clients are not as informative as they could be.  For example:

{code}
Subject org.apache.shiro.web.subject.support.WebDelegatingSubject@585fe96c is not permitted to JobScopedRpcPermission{rpc=startJobUpdate, permittedJob=IJobKey{role=foo, environment=devel, name=fancyjob}}
{code}

It would be very nice if the message masked the {{org.apache.shiro.web.subject[...]}} class name and either (a) listed the actual subject/principal name of the client ({{username@SOME.REALM}}), or (b) generically referred to "the client".

I would also suggest using the term "authorized" rather than "permitted".  This is probably debatable, and the semantic difference is minimal, but to me the former more directly hints at a thing that can be configured, whereas the current message might be misinterpreted to mean something that cannot be done at all.

For bonus points, also rewrite the {{JobScopedRpcPermission}} part of the message to be friendlier.  That part at least includes enough details that an informed user could figure out what it means after staring at it a bit.



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