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https://issues.apache.org/jira/browse/CAMEL-23543?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claus Ibsen updated CAMEL-23543:
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Fix Version/s: 4.21.0
> camel-core - Investigate centralizing Camel* inbound header filtering in
> DefaultHeaderFilterStrategy
> ----------------------------------------------------------------------------------------------------
>
> Key: CAMEL-23543
> URL: https://issues.apache.org/jira/browse/CAMEL-23543
> Project: Camel
> Issue Type: Improvement
> Components: camel-core
> Reporter: Andrea Cosentino
> Assignee: Adriano Machado
> Priority: Major
> Fix For: 4.21.0
>
>
> Follow-up from the CAMEL-23515 (camel-nats) and CAMEL-23516 (camel-xmpp)
> review discussion.
> Many components ship a dedicated {{HeaderFilterStrategy}} subclass purely to
> filter out headers starting with {{Camel}} / {{camel}} /
> {{org.apache.camel.}} in the inbound and outbound directions: camel-kafka,
> camel-mail, camel-coap, camel-google-pubsub, camel-jms, camel-sjms,
> camel-nats, camel-xmpp, plus the HTTP/REST family.
> Proposal: investigate whether
> {{org.apache.camel.support.DefaultHeaderFilterStrategy}} should filter the
> {{Camel}} / {{camel}} / {{org.apache.camel.}} prefixes by default (at least
> on the inbound direction), which would remove the need for most of these
> per-component subclasses going forward.
> Context / constraints:
> * CAMEL-23379 changed the {{lowerCase}} default to {{true}} but deliberately
> did NOT add inbound {{Camel*}} filtering to the base class.
> * Changing the base default is a behavioural change that needs: an assessment
> of the impact on the existing test suite, identification of components/routes
> that legitimately propagate {{Camel*}} headers, an upgrade-guide entry, and
> PMC sign-off.
> * Per the review discussion, the per-component approach is kept for now
> (consistent with what has already been done for many components); this ticket
> tracks the longer-term consolidation for a future release on {{main}}.
> _Raised by Claus Ibsen during PR #23283 review; logged by Claude Code on
> behalf of Andrea Cosentino._
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