UrlAccess2.java

package servlets.module.challenge;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Locale;
import java.util.ResourceBundle;

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.apache.log4j.Logger;

import utils.ShepherdLogManager;
import utils.Validate;

/**
 * Failure to Restrict URL Access Challenge 2
 * <br/><br/>
 * This class is a red herring, displaying guest type functionality for the challenge.
 * The information required to find the admin version of this function is 
 * contained in the javascript of the JSP page associated with the level
 * <br/><br/>
 * This file is part of the Security Shepherd Project.
 * 
 * The Security Shepherd project is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.<br/>
 * 
 * The Security Shepherd project 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.<br/>
 * 
 * You should have received a copy of the GNU General Public License
 * along with the Security Shepherd project.  If not, see <http://www.gnu.org/licenses/>. 
 * @author Mark Denihan
 *
 */
public class UrlAccess2 extends HttpServlet
{
	//URL Access 2
	private static final long serialVersionUID = 1L;
	private static org.apache.log4j.Logger log = Logger.getLogger(UrlAccess2.class);
	private static String levelName = "URL Access 2 (Guest)";
	/**
	 * This class is the User Level Function Call that works correctly from the level's view without manipulation
	 * This is not the correct function to target to retrieve the Result Key
	 */
	public void doPost (HttpServletRequest request, HttpServletResponse response) 
	throws ServletException, IOException
	{
		//Setting IpAddress To Log and taking header for original IP if forwarded from proxy
		ShepherdLogManager.setRequestIp(request.getRemoteAddr(), request.getHeader("X-Forwarded-For"));
		HttpSession ses = request.getSession(true);
		
		//Translation Stuff
		Locale locale = new Locale(Validate.validateLanguage(request.getSession()));
		ResourceBundle errors = ResourceBundle.getBundle("i18n.servlets.errors", locale);
		ResourceBundle bundle = ResourceBundle.getBundle("i18n.servlets.challenges.urlAccess.urlAccess2", locale);
		
		if(Validate.validateSession(ses))
		{
			ShepherdLogManager.setRequestIp(request.getRemoteAddr(), request.getHeader("X-Forwarded-For"), ses.getAttribute("userName").toString());
			log.debug(levelName + " servlet accessed by: " + ses.getAttribute("userName").toString());
			PrintWriter out = response.getWriter();  
			out.print(getServletInfo());
			String htmlOutput = new String();
			try
			{
				String userData = request.getParameter("guestData");
				boolean tamperedRequest = !userData.equalsIgnoreCase("ismcoa98sUD8j21dmdoasmcoISOdjh3189");
				if(!tamperedRequest)
					log.debug("No request tampering detected");
				else
					log.debug("User Submitted - " + userData);
				
				if(!tamperedRequest)
					htmlOutput = "<h2 class='title'>" + bundle.getString("request.normal") + "</h2>"
						+ "<p>" + bundle.getString("message.boring") + "</p>";
				else
					htmlOutput = "<h2 class='title'>" + bundle.getString("request.notNormal") + "</h2>"
							+ "<p>" + bundle.getString("message.different") + "</p>";
			}
			catch(Exception e)
			{
				out.write(errors.getString("error.funky"));
				log.fatal(levelName + " - " + e.toString());
			}
			log.debug("Outputting HTML");
			out.write(htmlOutput);
		}
		else
		{
			log.error(levelName + " servlet accessed with no session");
		}
	}
}