oscerd opened a new pull request, #24406: URL: https://github.com/apache/camel/pull/24406
This aligns `MimeMultipartDataFormat` unmarshalling (`headersInline=true`) with the camel-mail consumer: internal Camel headers (`Camel*`, matched case-insensitively) present in the external MIME headers are no longer copied verbatim onto the Camel message. ### Background Previously `copyNonStandardHeaders()` copied every MIME header (except `Message-ID`, `MIME-Version`, `Content-Type`) straight into the message header map with no `HeaderFilterStrategy`. This is inconsistent with: - the camel-mail **consumer**, which applies `MailHeaderFilterStrategy` (extends `DefaultHeaderFilterStrategy`) and filters the `Camel*` namespace case-insensitively on the inbound direction; - the data format's own **marshal** path, where inline headers are only copied when they match an explicit `includeHeaders` pattern. ### Change `copyNonStandardHeaders()` now delegates to `DefaultHeaderFilterStrategy.applyFilterToExternalHeaders(...)`, so `Camel*` headers arriving in MIME content are filtered on the inbound path. Ordinary application headers (e.g. `X-...`) continue to pass through unchanged. - Added a unit test covering prefix + case-insensitive filtering and application-header passthrough. - Added a 4.22 upgrade-guide entry (potential behavior change). JIRA: https://issues.apache.org/jira/browse/CAMEL-23891 --- 🤖 Generated with [Claude Code](https://claude.com/claude-code) on behalf of Andrea Cosentino -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
