/**
    * Copyright (c) 2002-2015, JWebUnit team.
    *
    * This file is part of JWebUnit.
    *
    * JWebUnit is free software: you can redistribute it and/or modify
    * it under the terms of the GNU Lesser General Public License as published by
    * the Free Software Foundation, either version 3 of the License, or
    * (at your option) any later version.
   *
   * JWebUnit is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public License
   * along with JWebUnit.  If not, see <http://www.gnu.org/licenses/>.
   */
  package net.sourceforge.jwebunit.tests.util;
  
  import java.io.IOException;
  import java.io.PrintWriter;
  
  import javax.servlet.ServletException;
  import javax.servlet.http.Cookie;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.eclipse.jetty.http.HttpHeader;
  
  public class CookiesServlet extends HttpServlet {
  
  	private static final long serialVersionUID = 1L;
  
  	protected void doGet(HttpServletRequest request,
  			HttpServletResponse response) throws ServletException, IOException {
  		doPost(request, response);
  	}
  
  	protected void doPost(HttpServletRequest request,
  			HttpServletResponse response) throws ServletException, IOException {
  		response.setContentType("text/html");
  		PrintWriter out = response.getWriter();
  		out.write(HtmlHelper.getStart("Submitted cookies"));
  		out.write("<h1>Submitted cookies</h1>\n<p>Cookies are:");
  		/*
  		 * Prints POST and GET cookies as name=value1[,value2...] separated with
  		 * <br/>
  		 */
  
  		Cookie[] cookies = request.getCookies();
  		if (cookies != null) {
  			for (int i = 0; i < cookies.length; i++) {
  				out.write(cookies[i].getName() + "=" + cookies[i].getValue()
  						+ "<br/>");
  			}
  		}
  
  		out.write(" </p>\n");
  		String ref = request.getHeader("Referer");
  		if (ref == null) {
  			if (request.getParameterValues("myReferer") != null) {
  				ref = request.getParameterValues("myReferer")[0];
  			}
  		}
  		out.write(HtmlHelper.getLinkParagraph("return", ref));
  
  		out.write(HtmlHelper.getEnd());
  		
  		// to disable explicitly setting the cookie on each request
  		if (request.getParameter("dont_set") == null) {
  			Cookie cookie = new Cookie("serveurCookie","foo");
  			response.addCookie(cookie);
  		}
  		
  		/*
  		 * To test if several same cookies with same path, domain and name 
  		 * are passed through to the test API. This "should" not be done by a 
  		 * server but there are use cases where it has to be done. One example is 
  		 * the JSESSIONID cookie which is set by Tomcat but has to be modified in a 
  		 * mod_jk - clustered environment in order to let the client jump to another 
  		 * worker (-> Tomcat cluster member). However within the web application the 
  		 * JSESSIONID cookie has already been added to the response and cannot be 
  		 * removed from there via API. Solution is to set another cookie to overwrite this.  
  		 * 
  		 * See http://tools.ietf.org/html/draft-ietf-httpstate-cookie-21#section-5.3, 11
  		 */
  		if(request.getParameter("set_by_headers") != null) {
  			// 1
  			Cookie jsessionIDCookie = new Cookie("JSESSIONID", "07D486AC962DE67F176F70B7C9816AAE.worker1");
  			jsessionIDCookie.setPath("/");
  			// session cookie:
  			jsessionIDCookie.setMaxAge(-2);
  			jsessionIDCookie.setDomain("localhost");
  			response.addCookie(jsessionIDCookie);
  			
  			//With Jetty 6+ we are now forced to access low level API to be able to set 2 same named cookies in the same response
  			org.eclipse.jetty.server.Response responseJetty = (org.eclipse.jetty.server.Response) response;
 			String cookie1 = responseJetty.getHttpFields().getStringField(HttpHeader.SET_COOKIE);
 			// 2
 			String cookie2 = cookie1.replace("worker1", "worker2");
 			response.addHeader(HttpHeader.SET_COOKIE.asString(), cookie2);
 		}
 	}
 
 }