package org.owasp.webgoat.lessons.admin;

import java.util.Iterator;
import org.apache.ecs.Element;
import org.apache.ecs.ElementContainer;
import org.apache.ecs.HtmlColor;
import org.apache.ecs.StringElement;
import org.apache.ecs.html.Center;
import org.apache.ecs.html.H2;
import org.apache.ecs.html.TD;
import org.apache.ecs.html.TH;
import org.apache.ecs.html.TR;
import org.apache.ecs.html.Table;
import org.owasp.webgoat.lessons.AbstractLesson;
import org.owasp.webgoat.lessons.Category;
import org.owasp.webgoat.lessons.LessonAdapter;
import org.owasp.webgoat.session.LessonTracker;
import org.owasp.webgoat.session.Screen;
import org.owasp.webgoat.session.UserTracker;
import org.owasp.webgoat.session.WebSession;


/***************************************************************************************************
 * 
 * 
 * This file is part of WebGoat, an Open Web Application Security Project utility. For details,
 * please see http://www.owasp.org/
 * 
 * Copyright (c) 2002 - 2007 Bruce Mayhew
 * 
 * This program 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 2 of the
 * License, or (at your option) any later version.
 * 
 * This program 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 General Public License along with this program; if
 * not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 * 
 * Getting Source ==============
 * 
 * Source for this application is maintained at code.google.com, a repository for free software
 * projects.
 * 
 * For details, please see http://code.google.com/p/webgoat/
 * 
 * @author Bruce Mayhew <a href="http://code.google.com/p/webgoat">WebGoat</a>
 * @created October 28, 2003
 */
public class ReportCardScreen extends LessonAdapter
{

	/**
	 * Description of the Field
	 */
	protected final static String USERNAME = "Username";

	/**
	 * Description of the Method
	 * 
	 * @param s
	 *            Description of the Parameter
	 * @return Description of the Return Value
	 */
	protected Element createContent(WebSession s)
	{
		ElementContainer ec = new ElementContainer();

		String user = null;

		try
		{
			if (s.getRequest().isUserInRole(WebSession.WEBGOAT_ADMIN))
			{
				user = s.getParser().getRawParameter(USERNAME);
			}
			else
			{
				user = s.getUserName();
			}
		} catch (Exception e)
		{
		}

		if (user == null)
		{
			user = s.getUserName();
		}

		ec.addElement(makeFeedback(s));
		ec.addElement(makeReportCard(s, user));

		return ec;
	}

	private Element makeFeedback(WebSession s)
	{
		ElementContainer ec = new ElementContainer();
		ec.addElement(new StringElement("Comments and suggestions are welcome. "
				+ getWebgoatContext().getFeedbackAddressHTML() + "<br><br>"));

		return ec;
	}

	/**
	 * Gets the category attribute of the UserAdminScreen object
	 * 
	 * @return The category value
	 */
	protected Category getDefaultCategory()
	{
		return Category.ADMIN_FUNCTIONS;
	}

	private final static Integer DEFAULT_RANKING = new Integer(1000);

	protected Integer getDefaultRanking()
	{
		return DEFAULT_RANKING;
	}

	/**
	 * Gets the role attribute of the UserAdminScreen object
	 * 
	 * @return The role value
	 */
	public String getRole()
	{
		return USER_ROLE;
	}

	/**
	 * Gets the title attribute of the UserAdminScreen object
	 * 
	 * @return The title value
	 */
	public String getTitle()
	{
		return ("Report Card");
	}

	/**
	 * Description of the Method
	 * 
	 * @param screen
	 *            Description of the Parameter
	 * @param s
	 *            Description of the Parameter
	 * @param user
	 *            Description of the Parameter
	 * @return Description of the Return Value
	 */
	private TR makeLessonRow(WebSession s, String user, Screen screen)
	{
		LessonTracker lessonTracker = UserTracker.instance().getLessonTracker(s, user, screen);
		TR tr = new TR();
		if (lessonTracker.getCompleted())
		{
			tr.setBgColor(HtmlColor.LIGHTGREEN);
		}
		else if (lessonTracker.getNumVisits() == 0)
		{
			tr.setBgColor(HtmlColor.LIGHTBLUE);
		}
		else if (!lessonTracker.getCompleted() && lessonTracker.getNumVisits() > 10)
		{
			tr.setBgColor(HtmlColor.RED);
		}
		else
		{
			tr.setBgColor(HtmlColor.YELLOW);
		}
		tr.addElement(new TD().addElement(screen.getTitle()));
		tr.addElement(new TD().setAlign("CENTER").addElement(lessonTracker.getCompleted() ? "Y" : "N"));
		tr.addElement(new TD().setAlign("CENTER").addElement(Integer.toString(lessonTracker.getNumVisits())));
		tr.addElement(new TD().setAlign("CENTER").addElement(Integer.toString(lessonTracker.getMaxHintLevel())));
		return tr;
	}

	/**
	 * Description of the Method
	 * 
	 * @param s
	 *            Description of the Parameter
	 * @return Description of the Return Value
	 */
	protected Element makeMessages(WebSession s)
	{
		ElementContainer ec = new ElementContainer();

		return (ec);
	}

	/**
	 * Description of the Method
	 * 
	 * @param s
	 *            Description of the Parameter
	 * @param user
	 *            Description of the Parameter
	 * @return Description of the Return Value
	 */
	public Element makeReportCard(WebSession s, String user)
	{
		ElementContainer ec = new ElementContainer();

		ec.addElement(makeUser(s, user));
		Table t = new Table().setCellSpacing(0).setCellPadding(2).setBorder(1);

		if (s.isColor())
		{
			t.setBorder(1);
		}
		TR tr = new TR();
		t.addElement(makeUserHeaderRow());

		// These are all the user lesson
		tr = new TR();
		tr.addElement(new TD().setAlign("CENTER").setColSpan(9).addElement("Normal user lessons"));
		t.addElement(tr);
		for (Iterator lessonIter = s.getCourse().getLessons(s, AbstractLesson.USER_ROLE).iterator(); lessonIter
				.hasNext();)
		{
			Screen screen = (Screen) lessonIter.next();
			t.addElement(makeLessonRow(s, user, screen));
		}

		// The user figured out there was a hackable admin acocunt
		tr = new TR();
		tr.addElement(new TD().setAlign("CENTER").setColSpan(9).addElement("Hackable Admin Screens"));
		t.addElement(tr);
		for (Iterator lessonIter = s.getCourse().getLessons(s, AbstractLesson.HACKED_ADMIN_ROLE).iterator(); lessonIter
				.hasNext();)
		{
			Screen screen = (Screen) lessonIter.next();
			t.addElement(makeLessonRow(s, user, screen));
		}

		// The user figured out how to actually hack the admin acocunt
		tr = new TR();
		tr.addElement(new TD().setAlign("CENTER").setColSpan(9).addElement("Actual Admin Screens"));
		t.addElement(tr);
		for (Iterator lessonIter = s.getCourse().getLessons(s, AbstractLesson.ADMIN_ROLE).iterator(); lessonIter
				.hasNext();)
		{
			Screen screen = (Screen) lessonIter.next();
			t.addElement(makeLessonRow(s, user, screen));
		}

		ec.addElement(t);
		return (ec);
	}

	/**
	 * Description of the Method
	 * 
	 * @param s
	 *            Description of the Parameter
	 * @param user
	 *            Description of the Parameter
	 * @return Description of the Return Value
	 */
	protected Element makeUser(WebSession s, String user)
	{
		H2 h2 = new H2();
		// FIXME: The session is the current session, not the session of the user we are reporting.
		// String type = s.isAdmin() ? " [Administrative User]" : s.isHackedAdmin() ?
		// " [Normal User - Hacked Admin Access]" : " [Normal User]";
		String type = "";
		h2.addElement(new StringElement("Results for: " + user + type));
		return h2;
	}

	/**
	 * Description of the Method
	 * 
	 * @return Description of the Return Value
	 */
	private TR makeUserHeaderRow()
	{
		TR tr = new TR();

		tr.addElement(new TH("Lesson"));
		tr.addElement(new TH("Complete"));
		tr.addElement(new TH("Visits"));
		tr.addElement(new TH("Hints"));

		return tr;
	}
}