Andrea Cosentino created CAMEL-24419:
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Summary: camel-mail - MimeMultipartDataFormat unmarshal does not
filter the mail.smtp/mail.smtps header namespace
Key: CAMEL-24419
URL: https://issues.apache.org/jira/browse/CAMEL-24419
Project: Camel
Issue Type: Bug
Components: camel-mail
Reporter: Andrea Cosentino
Assignee: Andrea Cosentino
Fix For: 4.23.0
CAMEL-23522 extended MailHeaderFilterStrategy so that the inbound path also
filters the mail.smtp. and mail.smtps. prefixes, not just Camel*/camel*:
String[] inFilter = Arrays.copyOf(CAMEL_FILTER_STARTS_WITH,
CAMEL_FILTER_STARTS_WITH.length + 2);
inFilter[CAMEL_FILTER_STARTS_WITH.length] = "mail.smtp.";
inFilter[CAMEL_FILTER_STARTS_WITH.length + 1] = "mail.smtps.";
setInFilterStartsWith(inFilter);
MimeMultipartDataFormat, which CAMEL-23891 gave a header filter for the Camel*
namespace, still holds a plain DefaultHeaderFilterStrategy:
private final HeaderFilterStrategy headerFilterStrategy = new
DefaultHeaderFilterStrategy();
used by copyNonStandardHeaders() (line 283) when headersInline unmarshal copies
MIME headers onto the exchange. DefaultHeaderFilterStrategy only knows
Camel*/camel*, so the mail.smtp./mail.smtps. namespace that CAMEL-23522
deliberately filters on the consumer path is not filtered here.
Proposal: use MailHeaderFilterStrategy (or a strategy configured with the same
inbound prefixes) in MimeMultipartDataFormat so both entry points agree on the
filtered namespace, with a test covering a mail.smtp.* header on unmarshal.
Backport alongside the CAMEL-23891 backports (4.14.x, 4.18.x).
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