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From "Sergey Beryozkin (JIRA)" <>
Subject [jira] [Commented] (CXF-7160) Can not configure CXF http-jetty transport to handle X-Fowarded-for headers with Jetty 9
Date Wed, 14 Dec 2016 09:42:59 GMT


Sergey Beryozkin commented on CXF-7160:

While this CXF-7160 issue can be addressed via the reflective coding for 3.1.x (and 3.2.0),
I wonder if a dev discussion should be started on how to support Jetty9 better

> Can not configure CXF http-jetty transport to handle X-Fowarded-for headers with Jetty
> ----------------------------------------------------------------------------------------
>                 Key: CXF-7160
>                 URL:
>             Project: CXF
>          Issue Type: Bug
>          Components: Transports
>    Affects Versions: 3.1.5
>            Reporter: Joe Luo
>            Assignee: Freeman Fang
> With Jetty 8, we can configure CXF http-jetty transport to handle reverse proxy headers
by simply setting "forwarded" to "true" to Jetty8 NIO SelectChannelConnector:
> {code}
> <httpj:engine-factory bus="cxf">
>     <httpj:engine port="${}">
> 	    <httpj:connector>
> 		    <bean id="connector" class="org.eclipse.jetty.server.nio.SelectChannelConnector">
> 			    <property name="port" value="${}" />                    
> 				<property name="forwarded" value="true" />                
> 			</bean>            
> 		</httpj:connector>          
> 	</httpj:engine> 
> </httpj:engine-factory>
> {code}
> However, with Jetty 9, it is not possible to do so. Because in Jetty 9, the SelectChannelConnector
was replaced by more generic purpose ServerConnector. And we can't configure ServerConnector
since the old no-args constructor does not exist anymore in ServerConnector class and all
new constructors require the org.eclipse.jetty.server.Server as an input parameter.
> Jetty 9 documentation here talked about "X-Forward-for Configuration":
> We should configure HttpConfiguration with ForwardedRequestCustomizer in order to handle
reverse proxy headers:
> {code}
> <New id="httpConfig" class="org.eclipse.jetty.server.HttpConfiguration">
>     <Set name="outputBufferSize">32768</Set>
>     <Set name="requestHeaderSize">8192</Set>
>     <Set name="responseHeaderSize">8192</Set>
>     <Call name="addCustomizer">
>         <Arg>
>             <New class="org.eclipse.jetty.server.ForwardedRequestCustomizer"/>
>         </Arg>
>     </Call>
> </New>
> {code}
> However, CXF http-jetty transport schema is not in-sync with API changes in Jetty 9.
There is no way to configure above with CXF http-jetty transport schema.
> I can think of two solutions:
> # Just like what we did in another JIRA:
> for servlet, we should also fix CXF http-jetty
transport so we can optionally react to X-Forwarded headers;
> # Change CXF http-jetty transport schema
> and related java code to allow configuring HttpConfiguration along with ForwardedRequestCustomizer
in order to handle X-Fowarded-for headers.

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