[jira] [Commented] (LOG4J2-3478) Base64 lookup doesn't work with system property substitution

["Carter Kozak (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LOG4J2-3478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17530910#comment-17530910 ] 

Carter Kozak commented on LOG4J2-3478:
--------------------------------------

I don't believe we have a base64 lookup in log4j2. If we did, the linked code should decode as expected.

> Base64 lookup doesn't work with system property substitution
> ------------------------------------------------------------
>
>                 Key: LOG4J2-3478
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-3478
>             Project: Log4j 2
>          Issue Type: Bug
>            Reporter: oskarryn
>            Priority: Minor
>
> Base64 encoded system property doesn't work, e.g.
> {code:java}
> property.token = ${base64:${sys:some.encoded.token}}
> {code}
> fails (silently) and is valued literally, without any expansion. The expected behavior is that the _some.encoded.token_ system property would be looked up and then decoded by base64 lookup.
> If this kind of "nesting" should be considered a feature please comment and I'll change the type.



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