Hi,

As part of migrating and application from JBoss 7.1.1 to Wildfly 10.1, I'm converting a Valve to a HttpHandler.  The handler needs to check if an HttpSession attribute is null, and if so it needs to delete a cookie.

I've got a custom HttpHandler deploying in Wildfly and getting executed, but I'm having trouble getting the ServletRequestContext object.  It's always coming back null.  Do I need to do something else to my undertow configuration?  Is there a better was to access the HttpSession and modified cookies on the HttpResponse?

Thanks!

Nate

Here is the custom handler:

package com.example.handlers;

import io.undertow.server.ExchangeCompletionListener;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
import io.undertow.server.session.Session;
import io.undertow.servlet.handlers.ServletRequestContext;
import io.undertow.servlet.spec.HttpServletRequestImpl;
import io.undertow.servlet.spec.HttpServletResponseImpl;
import io.undertow.util.Sessions;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpSession;
import org.apache.log4j.Logger;

public class TestHandler implements HttpHandler {
    private static final Logger logger = Logger.getLogger(TestHandler.class);

    private HttpHandler next;

    public TestHandler(HttpHandler next) {
        this.next = next;
    }

    @Override
    public void handleRequest(HttpServerExchange exchange) throws Exception {
        logger.info("Handling request...");

        ServletRequestContext src = exchange.getAttachment(ServletRequestContext.ATTACHMENT_KEY);
        // src is always null
        
        if(src != null) {

            HttpServletRequestImpl request = src.getOriginalRequest();
            HttpServletResponseImpl response = src.getOriginalResponse();
            final HttpSession session = request.getSession(false);

            if(session != null) {
                logger.info("Session is not null!");
                final Object attr = session.getAttribute("attr");
                if (attr == null) {
                    logger.info("attr is not null " + attr);
                    for (Cookie c : request.getCookies()) {
                        if (c.getName().equals("the-cookie")) {
                            logger.info("Found cookie...deleting...");
                            c.setMaxAge(0);
                            c.setValue("");
                            c.setPath("/");
                            response.addCookie(c);
                            break;
                        }
                    }
                
                } else {
                    logger.info("attr is null");
                }
            } else {
                logger.info("session is null");
            }
        } else {
            logger.info("src is null");
        }
        next.handleRequest(exchange);
    }
}

Here is the module xml file:

<module name="com.example.handlers" xmlns="urn:jboss:module:1.3">
    <dependencies>
        <module name="javax.api"/>
        <module name="io.undertow.core"/>
        <module name="io.undertow.servlet"/>
        <module name="org.apache.log4j"/>
    </dependencies>


    <resources>
        <resource-root path="."/>
    </resources>
</module>

Here is the undertow subsystem configuration standalone.xml:

<subsystem xmlns="urn:jboss:domain:undertow:3.1">
    <buffer-cache name="default"/>
    <server name="default-server">
        <http-listener name="default" socket-binding="http" redirect-socket="https" enable-http2="true" record-request-start-time="true"/>
        <https-listener name="https" socket-binding="https" security-realm="ManagementRealm" enable-http2="true" record-request-start-time="true"/>
        <host name="default-host" alias="localhost">
            <access-log prefix="access." rotate="true" pattern="%h %l %u %t &quot;%r&quot; %s %b %D &quot;%{i,Referer}&quot; &quot;%{i,User-Agent}&quot; &quot;%I&quot;"/>
            <filter-ref name="test"/>
        </host>
    </server>
    <servlet-container name="default">
        <jsp-config/>
        <websockets/>
    </servlet-container>
    <filters>
        <filter name="test" class-name="com.example.handlers.TestHandler" module="com.example.handlers"/>        
    </filters>
</subsystem>