package org.egjug.hashim.servlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.egjug.hashim.CaptchaServiceSingleton;

import com.octo.captcha.service.CaptchaServiceException;

/****
 * @author Ahmed Hashim (eng.hashim@gmail.com)
 * @since June 2006
 * */
public class Login extends HttpServlet {

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		Boolean isResponseCorrect = Boolean.FALSE;
		//remenber that we need an id to validate!
		String captchaId = request.getSession().getId();
		//retrieve the response
		String turing = request.getParameter("turing");
		// Call the Service method
		try {
			isResponseCorrect = CaptchaServiceSingleton.getInstance()
					.validateResponseForID(captchaId, turing);
		} catch (CaptchaServiceException e) {
			//should not happen, may be thrown if the id is not valid 
			e.printStackTrace();
		}
		if (isResponseCorrect == true) {
			response.setContentType("text/html");
			PrintWriter out = response.getWriter();
			out.write("Congratulation... Login success");
			out.flush();
			out.close();
		}
		else
		{
			RequestDispatcher dis = request.getRequestDispatcher("/jsp/login.jsp");
			dis.forward(request,response);
		}
	}

}