Fried Hoeben created CAMEL-6185:
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Summary: http4 component should always filter 'host' header
Key: CAMEL-6185
URL: https://issues.apache.org/jira/browse/CAMEL-6185
Project: Camel
Issue Type: Bug
Components: camel-http
Affects Versions: 2.10.4
Reporter: Fried Hoeben
Exchanges originating from a CXF consumer get an incorrect 'host' http-header
when directed to a http4 producer. The problem is that the cxf consumer copies
the incoming 'host' header to the message, and the http4 producer copies this
to the outgoing message. The http component does not do that.
When sending a http request the HttpProducer copies headers from the incomming
message to the HTTP request. The 'host' header should not be copied since it
(according to the http spec) should always contain the name of the server the
request is sent to.
This has already been addressed for bridge endpoints (CAMEL-5757), but is
always an issue.
The easiest fix seems to be to add the 'host' header to the list of out going
filters in
org.apache.camel.component.http4.HttpHeaderFilterStrategy.initialize() i.e.:
{code}
getOutFilter().add("host");
{code}
Once this is done the special handling (i.e. removal of) of 'host' header in
case of bridgeEndpoint inside HttpProducer can be removed (since the strategy
will remove it):
{code}
// Need to remove the Host key as it should be not used
exchange.getIn().getHeaders().remove("host");
{code}
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