GetJsonScore.java

package servlets;

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 javax.servlet.http.HttpSession;

import org.apache.log4j.Logger;

import servlets.admin.moduleManagement.GetFeedback;
import utils.ScoreboardStatus;
import utils.ShepherdLogManager;
import utils.Validate;
import dbProcs.Getter;

/**
 * This control class returns a JSON array containing Scoreboard data for a class defined in utils.ScoreboardStatus
 * <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 GetJsonScore extends HttpServlet
{
	private static final long serialVersionUID = 1L;
	private static org.apache.log4j.Logger log = Logger.getLogger(GetFeedback.class);
	/**
	 * Used to return an administrator with the current progress of each player in a class.
	 * This will require a complex client page to parse the returned JSON information to make a very pretty score board
	 * @param classId
	 * @param csrfToken
	 */
	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"));
		//log.debug("*** servlets.GetJsonScore ***");
		PrintWriter out = response.getWriter(); 
		out.print(getServletInfo());
		HttpSession ses = request.getSession(true);
		if(Validate.validateSession(ses))
		{
			ShepherdLogManager.setRequestIp(request.getRemoteAddr(), request.getHeader("X-Forwarded-For"), ses.getAttribute("userName").toString());
			log.debug("Scoreboard accessed by " + ses.getAttribute("userName").toString());
			boolean canSeeScoreboard = ScoreboardStatus.canSeeScoreboard((String)ses.getAttribute("userRole"));
			Cookie tokenCookie = Validate.getToken(request.getCookies());
			Object tokenParmeter = request.getParameter("csrfToken");
			String scoreboardClass = new String();
			if(Validate.validateTokens(tokenCookie, tokenParmeter) && canSeeScoreboard)
			{
				//What Class to List?
				if(ScoreboardStatus.getClassSpecificScoreboard())
				{
					if(ses.getAttribute("userRole").toString().compareTo("admin") == 0)
					{
						//Admin should get default class Scoreboard
						scoreboardClass = Register.getDefaultClass();
					}
					else
					{
						//User should get their class scoreboard
						if(ses.getAttribute("userClass") != null)
							scoreboardClass = ses.getAttribute("userClass").toString();
						else
							scoreboardClass = new String();
					}
				}
				else
				{
					scoreboardClass = ScoreboardStatus.getScoreboardClass();
				}
				String applicationRoot = getServletContext().getRealPath("");
				String jsonOutput = Getter.getJsonScore(applicationRoot, scoreboardClass);
				if(jsonOutput.isEmpty())
					jsonOutput = "ERROR: No Scoreboard Data Right Now";
				out.write(jsonOutput);
			}
			else
			{
				if(!canSeeScoreboard)
					out.write("ERROR: Scoreboard is not currently available");
				else
					out.write("ERROR: Please refresh page!");
			}
		}
		else
		{
			log.debug("Unauthenticated Scoreboard Request");
			out.write("ERROR: You are logged out. Please refresh the page");
		}
		//log.debug("*** END servlets.GetJsonScore ***");
	}
	
	public void doGet (HttpServletRequest request, HttpServletResponse response) 
			throws ServletException, IOException
	{
		response.sendRedirect("scoreboard.jsp");
	}
}