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https://issues.apache.org/jira/browse/WW-4094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13676738#comment-13676738
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Lukasz Lenart commented on WW-4094:
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I thought about that and 99,99% of requests should match the regexp - the rest
means something is wrong (hacker, broken request, etc) - on production you
don't use debug level though ;-)
> struts.allowed.action.names inconsistency
> -----------------------------------------
>
> Key: WW-4094
> URL: https://issues.apache.org/jira/browse/WW-4094
> Project: Struts 2
> Issue Type: Bug
> Affects Versions: 2.3.14.3
> Reporter: Andreas Sachs
> Assignee: Lukasz Lenart
> Priority: Minor
> Fix For: 2.3.15
>
>
> I think there is a inconsistency in DefaultActionMapper.cleanupActionName
> According to http://struts.apache.org/development/2.x/docs/s2-015.html
> struts.allowed.action.names defines a regex the action name must match.
> The default regex is: {noformat}[a-z]*[A-Z]*[0-9]*[.\-_!/]*{noformat}
> I have an action with the name "core_blz"
> This action name does not match the regex (underscore is not at the
> end)(maybe the default value should be changed).
> {noformat}DefaultActionMapper reports Action [#0] do not match allowed action
> names pattern [#1], cleaning it up!{noformat}
> But the cleaned action name is still core_blz.
> If this function is only to remove suspicious characters, then the warning
> should not be displayed.
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