ServletLogin_Marcell

/*
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 * and open the template in the editor.
 */
package Servlet;

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

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author almeidamarcell
 */
@WebServlet(name = "ServletLogin", urlPatterns = {"/ServletLogin"})
public class ServletLogin extends HttpServlet {


    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();

           String account = request.getParameter("account");
    String password = request.getParameter("password");
    String pin = request.getParameter("pin");

    // MUDEI AQUI PRA ELE ENTRAR NO IF!!!
        if (allowUser(account, password, pin)) {
      out.println("<HTML><HEAD><TITLE>Access Denied</TITLE></HEAD>");
      out.println("<BODY>Your login and password are invalid.<BR>");
      out.println("You may want to <A HREF=\"./ServletLogin\">try again</A>");
      out.println("</BODY></HTML>");
    } else {
      // login
      HttpSession session = request.getSession();
      session.setAttribute("logon.isDone", account);
      //


        try {
        String target = (String) session.getAttribute("login.target");
        if (target != null) {
          response.sendRedirect(target);
          return;
        }
      } catch (Exception ignored) {
      }


      response.sendRedirect("/ServletLogin");
    }
  }

  protected boolean allowUser(String account, String password, String pin) {
    return true; // trust everyone
  }

  // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}