// ========================================================================
   // Copyright 2004-2010 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 java.io.IOException;
  import java.util.Random;
  
  import javax.servlet.ServletException;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.eclipse.jetty.client.ContentExchange;
  import org.eclipse.jetty.client.HttpClient;
  import org.eclipse.jetty.http.HttpMethods;
  import org.eclipse.jetty.servlet.ServletContextHandler;
  import org.junit.Test;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  /**
   * AbstractNewSessionTest
   */
  public abstract class AbstractNewSessionTest
  {
      public abstract AbstractTestServer createServer(int port, int max, int scavenge);
  
      public void pause(int scavenge)
      {
          try
          {
              Thread.sleep(scavenge * 2500L);
          }
          catch (InterruptedException e)
          {
              e.printStackTrace();
          }
      }
      
      @Test
      public void testNewSession() throws Exception
      {
          String contextPath = "";
          String servletMapping = "/server";
          int scavengePeriod = 3;
          AbstractTestServer server = createServer(0, 1, scavengePeriod);
          ServletContextHandler context = server.addContext(contextPath);
          context.addServlet(TestServlet.class, servletMapping);
          server.start();
          int port=server.getPort();
          try
          {
              HttpClient client = new HttpClient();
              client.setConnectorType(HttpClient.CONNECTOR_SOCKET);
              client.start();
              try
              {
                  ContentExchange exchange = new ContentExchange(true);
                  exchange.setMethod(HttpMethods.GET);
                  exchange.setURL("http://localhost:" + port + contextPath + servletMapping + "?action=create");
                  client.send(exchange);
                  exchange.waitForDone();
                  assertEquals(HttpServletResponse.SC_OK,exchange.getResponseStatus());
                  String sessionCookie = exchange.getResponseFields().getStringField("Set-Cookie");
                  assertTrue(sessionCookie != null);
                  // Mangle the cookie, replacing Path with $Path, etc.
                  sessionCookie = sessionCookie.replaceFirst("(\\W)(P|p)ath=", "$1\\$Path=");
  
                  // Let's wait for the scavenger to run, waiting 2.5 times the scavenger period
                  pause(scavengePeriod);
  
                  // The session is not there anymore, but we present an old cookie
                  // The server creates a new session, we must ensure we released all locks
                  exchange = new ContentExchange(true);
                  exchange.setMethod(HttpMethods.GET);
                  exchange.setURL("http://localhost:" + port + contextPath + servletMapping + "?action=old-create");
                  exchange.getRequestFields().add("Cookie", sessionCookie);
                  client.send(exchange);
                  exchange.waitForDone();
                  assertEquals(HttpServletResponse.SC_OK,exchange.getResponseStatus());
              }
              finally
              {
                  client.stop();
              }
          }
          finally
          {
             server.stop();
         }
 
     }
     public static class TestServlet extends HttpServlet
     {
         @Override
         protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
         {
             String action = request.getParameter("action");
             if ("create".equals(action))
             {
                 request.getSession(true);
             }
             else if ("old-create".equals(action))
             {
                 request.getSession(true);
             }
             else
             {
                 assertTrue(false);
             }
         }
     }
 }