[
https://issues.apache.org/jira/browse/CAMEL-26470?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Work on CAMEL-26470 started by Adriano Machado.
-----------------------------------------------
> camel-support - PatternHelper: do not compile a regular expression for a
> pattern without metacharacters
> -------------------------------------------------------------------------------------------------------
>
> Key: CAMEL-26470
> URL: https://issues.apache.org/jira/browse/CAMEL-26470
> Project: Camel
> Issue Type: Sub-task
> Reporter: Adriano Machado
> Assignee: Adriano Machado
> Priority: Major
> Fix For: 4.24.0
>
>
> Tier 2 item of CAMEL\-25132. PatternHelper.matchPattern compiles a regular
> expression for every name that is not an exact or wildcard match, so
> removeHeaders\("Camel\*"\), which the security checklist recommends, compiles
> one per remaining header on every exchange. The ticket measured about 930 ns
> and 7.6 KB per exchange with 12 headers.
> A pattern without regex metacharacters cannot match anything beyond the exact
> and wildcard checks, except that a trailing \* also means zero or more of the
> previous character, so Camel\* matches the name Came. Such patterns can skip
> the compile unless the name has exactly that shape. Other patterns still
> compile, and the matching result must not change.
> _Claude Code on behalf of Adriano Machado \(@ammachado\)_
> _This was generated by an AI agent and may contain inaccuracies. Please
> verify before relying on it._
--
This message was sent by Atlassian Jira
(v10.3.26#10030026)
