//
   //  ========================================================================
   //  Copyright (c) 1995-2016 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.PrintWriter;
  
  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 org.eclipse.jetty.client.HttpClient;
  import org.eclipse.jetty.client.api.ContentResponse;
  import org.eclipse.jetty.client.api.Request;
  import org.junit.Test;
  
  
  /**
   * AbstractImmortalSessionTest
   */
  public abstract class AbstractImmortalSessionTest
  {
      public abstract AbstractTestServer createServer(int port, int maxInactiveMs, int scavengeMs);
  
      @Test
      public void testImmortalSession() throws Exception
      {
          String contextPath = "";
          String servletMapping = "/server";
          int scavengePeriod = 2;
          //turn off session expiry by setting maxInactiveInterval to -1
          AbstractTestServer server = createServer(0, -1, scavengePeriod);
          server.addContext(contextPath).addServlet(TestServlet.class, servletMapping);
  
          try
          {
              server.start();
              int port=server.getPort();
              HttpClient client = new HttpClient();
              client.start();
              try
              {
                  int value = 42;
                  ContentResponse response = client.GET("http://localhost:" + port + contextPath + servletMapping + "?action=set&value=" + value);
                  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=");
  
                  String resp = response.getContentAsString();
                  assertEquals(resp.trim(),String.valueOf(value));
  
                  // Let's wait for the scavenger to run, waiting 2.5 times the scavenger period
                  Thread.sleep(scavengePeriod * 2500L);
  
                  // Be sure the session is still there
                  Request request = client.newRequest("http://localhost:" + port + contextPath + servletMapping + "?action=get");
                  request.header("Cookie", sessionCookie);
                  response = request.send();
                  assertEquals(HttpServletResponse.SC_OK,response.getStatus());
                  resp = response.getContentAsString();
                  assertEquals(String.valueOf(value),resp.trim());
              }
              finally
              {
                  client.stop();
              }
          }
          finally
          {
              server.stop();
          }
      }
  
      public static class TestServlet extends HttpServlet
      {
          @Override
         protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
         {
             String result = null;
             String action = request.getParameter("action");
             if ("set".equals(action))
             {
                 String value = request.getParameter("value");
                 HttpSession session = request.getSession(true);
                 session.setAttribute("value", value);
                 result = value;
             }
             else if ("get".equals(action))
             {
                 HttpSession session = request.getSession(false);
                 if (session!=null)
                     result = (String)session.getAttribute("value");
             }
             PrintWriter writer = response.getWriter();
             writer.println(result);
             writer.flush();
         }
     }
 }