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https://issues.apache.org/jira/browse/SYNAPSE-525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12707938#action_12707938
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Andreas Veithen commented on SYNAPSE-525:
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I think that neither the preserve-by-default nor the remove-by-default approach
are appropriate and consistent, but that the most reasonable default behavior
would be as follows:
- If the SOAP header has been processed by a module engaged on the proxy
service, remove it when forwarding the message.
- If the SOAP header has not been processed by a module engaged on the proxy
service, preserve it and forward it to the target service.
This would even extend to WS-Security: if Rampart is engaged on a proxy service
(I don't know if that is possible for the moment), it means that the security
headers are for Synapse and in general it would be wrong to forward them. On
the other hand, if Rampart is not engaged on the proxy, in most cases this
means that they are for the target service and we should forward them.
Since currently only addressing is engaged by default on proxy services, the
old behavior (remove addressing headers, but preserve security and RM headers)
was actually consistent! On the other hand, I agree with you that hardcoding
this decision in the core is not a good idea. I think that Axis2 keeps track of
the headers that have been processed (for the must understand check). Therefore
my counterproposal would be:
- For 1.3, revert to the old behavior (remove addressing information by
default).
- For the next release after 1.3, implement a proper mechanism that preserves
or removes headers based on the rules above.
> Option to preserve addressing headers should be available
> ---------------------------------------------------------
>
> Key: SYNAPSE-525
> URL: https://issues.apache.org/jira/browse/SYNAPSE-525
> Project: Synapse
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.2
> Environment: all env
> Reporter: Ruwan Linton
> Assignee: Ruwan Linton
> Fix For: 1.3
>
>
> For the moment Synapse replaces all the addressing headers when sending the
> message out to the routed service, but there can be case where the mediation
> configuration should preserve the addressing headers. For example like
> wsa:Reply-To
> So this requires a switch to configure the send mediator to not to alter
> addressing headers.
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