[jira] [Updated] (CAMEL-22353) Undertow "null header error" on response if there is an invalid character in the request header name

["Claus Ibsen (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CAMEL-22353?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Claus Ibsen updated CAMEL-22353:
--------------------------------
    Fix Version/s: 4.17.0
                       (was: 4.x)

> Undertow "null header error" on response if there is an invalid character in the request header name
> ----------------------------------------------------------------------------------------------------
>
>                 Key: CAMEL-22353
>                 URL: https://issues.apache.org/jira/browse/CAMEL-22353
>             Project: Camel
>          Issue Type: Improvement
>          Components: camel-undertow
>    Affects Versions: 4.13.0
>            Reporter: Valeriy Ak
>            Priority: Minor
>              Labels: Undertow
>             Fix For: 4.17.0
>
>
> I understand that this is not exactly a Camel component bug, but more of a compatibility issue. However, it seems like it would be nice to support this compatibility.
> In [Undertow|https://github.com/undertow-io/undertow], when forming a response, there is a built-in check for characters ([only codes 0–255 are allowed|https://github.com/undertow-io/undertow/blame/0ea9ca3f1b79389daea2d46aaa33977d5154be15/core/src/main/java/io/undertow/util/HttpString.java#L159]) . If an invalid character appears in a header name, then the name becomes {{null}} and an exception is thrown.
> When responding, {{HttpHeaderFilterStrategy}} checks the header name for {{{}null{}}}, but does not check for RFC validity ([link|https://www.rfc-editor.org/rfc/rfc7230#section-3.2.4]).
> It would be great to add a mode for validating header correctness on input, or perhaps suports Undertow logic for response.
>  
> {code:java}
> java.lang.NullPointerException: UT010052: Header name was nul	
> at io.undertow.servlet.spec.HttpServletResponseImpl.addHeader(HttpServletResponseImpl.java:271) ~[undertow-servlet-2.3.18.Final.jar:2.3.18.Final]
> at io.undertow.servlet.spec.HttpServletResponseImpl.addHeader(HttpServletResponseImpl.java:266) ~[undertow-servlet-2.3.18.Final.jar:2.3.18.Final]
> at org.apache.camel.http.common.DefaultHttpBinding.doWriteResponse(DefaultHttpBinding.java:443) ~[camel-http-common-4.13.0.jar:4.13.0]	
> at org.apache.camel.http.common.DefaultHttpBinding.writeResponse(DefaultHttpBinding.java:373) ~[camel-http-common-4.13.0.jar:4.13.0]	
> at org.apache.camel.http.common.CamelServlet.afterProcess(CamelServlet.java:380) ~[camel-http-common-4.13.0.jar:4.13.0]	
> at org.apache.camel.http.common.CamelServlet.doExecute(CamelServlet.java:321) ~[camel-http-common-4.13.0.jar:4.13.0]	
> at org.apache.camel.http.common.CamelServlet.doService(CamelServlet.java:235) ~[camel-http-common-4.13.0.jar:4.13.0]	
> at org.apache.camel.http.common.CamelServlet.handleService(CamelServlet.java:111) ~[camel-http-common-4.13.0.jar:4.13.0] {code}
>  
> Simle example project of that error (just run test) - [https://github.com/Akvel/camel-header-error-example]



--
This message was sent by Atlassian Jira
(v8.20.10#820010)