ChangeCoreDatabase.java

package servlets.admin.config;

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 org.owasp.esapi.ESAPI;
import org.owasp.esapi.Encoder;

import dbProcs.Setter;
import utils.ShepherdLogManager;
import utils.Validate;

/**
 * This class is responsible for requests to configure the applications core database sign on information.
 * <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 ChangeCoreDatabase extends HttpServlet
{
	private static final long serialVersionUID = 1L;
	private static org.apache.log4j.Logger log = Logger.getLogger(ChangeCoreDatabase.class);
	
	/**
	 * If this method is called by a valid administrator the site.properties file that contains the database information required to make a connection is updated 
	 * @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.Admin.config.ChangeCoreDatabase ***");
		Encoder encoder = ESAPI.encoder();
		PrintWriter out = response.getWriter();  
		out.print(getServletInfo());
		HttpSession ses = request.getSession(true);
		Cookie tokenCookie = Validate.getToken(request.getCookies());
		Object tokenParmeter = request.getParameter("csrfToken");
		if(Validate.validateAdminSession(ses, tokenCookie, tokenParmeter))
		{
			ShepherdLogManager.setRequestIp(request.getRemoteAddr(), request.getHeader("X-Forwarded-For"), ses.getAttribute("userName").toString());
			log.debug("Current User: " + ses.getAttribute("userName").toString());
			if(Validate.validateTokens(tokenCookie, tokenParmeter))
			{
				try
				{
					log.debug("Getting ApplicationRoot");
					String ApplicationRoot = getServletContext().getRealPath("");
					log.debug("Servlet root = " + ApplicationRoot );
					
					log.debug("Getting Parameters");
					String url = Validate.validateParameter(request.getParameter("databaseUrl"), 256);
					log.debug("URL = " + url);
					String userName = Validate.validateParameter(request.getParameter("databaseUsername"), 256);
					log.debug("userName = " + userName);
					String password = Validate.validateParameter(request.getParameter("databasePassword"), 256);
					log.debug("password = NOTSHOWN");
					
					boolean validData = !url.isEmpty() && !userName.isEmpty() && !password.isEmpty();
					if(Setter.setCoreDatabaseInfo(ApplicationRoot, url, userName, password))
					{
						out.write("<h3 class='title'>Core Database Info Updated</h3>" +
								"<p>The Core Database properties have successfully been updated!</p>");
					}
					else
					{
						//Validation Error Responses
						String errorMessage = "An Error Occurred ";
						if(!validData)
						{
							log.error("Invalid Application Address");
							errorMessage += "Invalid Host Address. Please try again";
						}
						else
						{
							log.error("Unexpected Failure");
							errorMessage = "An Error Occurred";
						}
						out.print("<h3 class=\"title\">Core Database Info Update Failure</h3><br>" +
								"<p><font color=\"red\">" +
								encoder.encodeForHTML(errorMessage) +
								"</font><p>");
					}
				}
				catch (Exception e)
				{
					log.error("Core Database Info Update Error: " + e.toString());
					out.print("<h3 class=\"title\">Core Database Info Update Failure</h3><br>" +
							"<p>" +
							"<font color=\"red\">An error Occurred! Please try again.</font>" +
							"<p>");
				}
			}
			else
			{
				log.debug("CSRF tokens did not match");
				out.print("<h3 class=\"title\">Core Database Info Update Failure</h3><br>" +
					"<p>" +
					"<font color=\"red\">An error Occurred! CSRF Tokens did not match.</font>" +
					"<p>");
			}
		}
		else
		{
			out.print("<h3 class=\"title\">Core Database Info Update Failure</h3><br>" +
					"<p>" +
					"<font color=\"red\">An error Occurred! Please log in or try non administrator functions!</font>" +
					"<p>");
		}
		log.debug("*** servlets.Admin.config.ChangeCoreDatabase END ***");
	}
}