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https://issues.apache.org/jira/browse/KNOX-2839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17651597#comment-17651597
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ASF subversion and git services commented on KNOX-2839:
-------------------------------------------------------
Commit 1906185 from Sandor Molnar
[ https://svn.apache.org/r1906185 ]
KNOX-2856 - Document changes in KNOX-2839
> Refactor impersonation from KnoxToken service
> ---------------------------------------------
>
> Key: KNOX-2839
> URL: https://issues.apache.org/jira/browse/KNOX-2839
> Project: Apache Knox
> Issue Type: Task
> Components: Server
> Reporter: Sandor Molnar
> Assignee: Sandor Molnar
> Priority: Blocker
> Fix For: 2.0.0
>
> Time Spent: 5h 50m
> Remaining Estimate: 0h
>
> With KNOX-2714, end-users can create tokens on behalf of other users using
> Hadoop's impersonation mechanism.
> The problem with the current implementation is that the proxyuser
> authorization happens to be on service level, but it should be executed
> sooner.
> As discussed offline with [~lmccay] and [~pzampino] we agreed on the
> following:
> * impersonation support should be done in Knox's identity assertion layer
> and not in the services
> * the proxuyser authorization in HadoopAuth filter should be left as-is.
> When someone configures them in two places (HadoopAuth authentication and in
> identity-assertion), a WARN-level message should indicate that one on the
> identity-assertion level will be ignored.
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