//
// ========================================================================
// Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.server.session;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.io.Serializable;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpSessionActivationListener;
import javax.servlet.http.HttpSessionBindingEvent;
import javax.servlet.http.HttpSessionBindingListener;
import javax.servlet.http.HttpSessionEvent;
import org.eclipse.jetty.client.HttpClient;
import org.eclipse.jetty.client.api.ContentResponse;
import org.eclipse.jetty.client.api.Request;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.junit.Test;
/**
* DirtyAttributeTest
*
* Check that repeated calls to setAttribute with the same value do not cause writes to the
* database - this is inferred via calls to passivate and activate listeners.
*
*
*/
public class DirtyAttributeTest
{
public static TestValue A_VALUE = new TestValue();
public static TestValue B_VALUE = new TestValue();
public static String THE_NAME = "__theName";
public static int INACTIVE = 4;
public static int SCAVENGE = 1;
@Test
public void testDirtyWrite() throws Exception
{
AbstractTestServer server = new JdbcTestServer(0,INACTIVE,SCAVENGE);
ServletContextHandler ctxA = server.addContext("/mod");
ctxA.addServlet(TestDirtyServlet.class, "/test");
server.start();
int port=server.getPort();
try
{
HttpClient client = new HttpClient();
client.start();
try
{
// Perform a request to create a session
ContentResponse response = client.GET("http://localhost:" + port + "/mod/test?action=create");
assertEquals(HttpServletResponse.SC_OK,response.getStatus());
String sessionCookie = response.getHeaders().get("Set-Cookie");
assertTrue(sessionCookie != null);
// Mangle the cookie, replacing Path with $Path, etc.
sessionCookie = sessionCookie.replaceFirst("(\\W)(P|p)ath=", "$1\\$Path=");
//do another request to change the session attribute
Request request = client.newRequest("http://localhost:" + port + "/mod/test?action=setA");
request.header("Cookie", sessionCookie);
response = request.send();
assertEquals(HttpServletResponse.SC_OK,response.getStatus());
A_VALUE.assertPassivatesEquals(1);
A_VALUE.assertActivatesEquals(1);
A_VALUE.assertBindsEquals(1);
A_VALUE.assertUnbindsEquals(0);
//do another request using the cookie to try changing the session attribute to the same value again
request= client.newRequest("http://localhost:" + port + "/mod/test?action=setA");
request.header("Cookie", sessionCookie);
response = request.send();
assertEquals(HttpServletResponse.SC_OK,response.getStatus());
A_VALUE.assertPassivatesEquals(2);
A_VALUE.assertActivatesEquals(2);
A_VALUE.assertBindsEquals(1);
A_VALUE.assertUnbindsEquals(0);
//do another request using the cookie and change to a different value
request= client.newRequest("http://localhost:" + port + "/mod/test?action=setB");
request.header("Cookie", sessionCookie);
response = request.send();
assertEquals(HttpServletResponse.SC_OK,response.getStatus());
B_VALUE.assertPassivatesEquals(1);
B_VALUE.assertActivatesEquals(1);
B_VALUE.assertBindsEquals(1);
B_VALUE.assertUnbindsEquals(0);
A_VALUE.assertBindsEquals(1);
A_VALUE.assertUnbindsEquals(1);
}
finally
{
client.stop();
}
}
finally
{
server.stop();
}
}
public static class TestValue implements HttpSessionActivationListener, HttpSessionBindingListener, Serializable
{
int passivates = 0;
int activates = 0;
int binds = 0;
int unbinds = 0;
/**
* @see javax.servlet.http.HttpSessionActivationListener#sessionWillPassivate(javax.servlet.http.HttpSessionEvent)
*/
public void sessionWillPassivate(HttpSessionEvent se)
{
++passivates;
}
/**
* @see javax.servlet.http.HttpSessionActivationListener#sessionDidActivate(javax.servlet.http.HttpSessionEvent)
*/
public void sessionDidActivate(HttpSessionEvent se)
{
++activates;
}
public void assertPassivatesEquals (int expected)
{
assertEquals(expected, passivates);
}
public void assertActivatesEquals (int expected)
{
assertEquals(expected, activates);
}
public void assertBindsEquals (int expected)
{
assertEquals(expected, binds);
}
public void assertUnbindsEquals (int expected)
{
assertEquals(expected, unbinds);
}
/**
* @see javax.servlet.http.HttpSessionBindingListener#valueBound(javax.servlet.http.HttpSessionBindingEvent)
*/
public void valueBound(HttpSessionBindingEvent event)
{
++binds;
}
/**
* @see javax.servlet.http.HttpSessionBindingListener#valueUnbound(javax.servlet.http.HttpSessionBindingEvent)
*/
public void valueUnbound(HttpSessionBindingEvent event)
{
++unbinds;
}
}
public static class TestDirtyServlet extends HttpServlet
{
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
String action = request.getParameter("action");
if ("create".equals(action))
{
HttpSession session = request.getSession(true);
return;
}
if ("setA".equals(action))
{
HttpSession session = request.getSession(false);
if (session == null)
throw new ServletException("Session is null for action=change");
session.setAttribute(THE_NAME, A_VALUE);
return;
}
if ("setB".equals(action))
{
HttpSession session = request.getSession(false);
if (session == null)
throw new ServletException("Session does not exist");
session.setAttribute(THE_NAME, B_VALUE);
return;
}
}
}
}