Trouble accessing HttpSession and setting cookies in custom HttpHandler
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 "%r" %s %b %D "%{i,Referer}" "%{i,User-Agent}" "%I""/>
<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>
