EmailCheck.java

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

package org.cysecurity.cspf.jvl.controller;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.cysecurity.cspf.jvl.model.DBConnect;
import org.json.JSONML;
import org.json.JSONObject;
import org.json.JSONTokener;
import org.json.XMLTokener;

/**
 *
 * @author breakthesec
 */
public class EmailCheck 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("application/json");
        PrintWriter out = response.getWriter();
        try {
               Connection con=new DBConnect().connect(getServletContext().getRealPath("/WEB-INF/config.properties"));
               String email=request.getParameter("email").trim();
               JSONObject json=new JSONObject();
                JSONML jsonml=new JSONML();
                jsonml.toJSONArray("JsonObjects");
                XMLTokener jsont =new XMLTokener("f");
               jsont.nextMeta();
                if(con!=null && !con.isClosed())
                {
                    ResultSet rs=null;
                    Statement stmt = con.createStatement();  
                    rs=stmt.executeQuery("select * from users where email='"+email+"'");
                    if (rs.next()) 
                    {  
                     json.put("available", "1"); 
                    }  
                    else
                    {  
                      json.put("available", new Integer(0));  
                    }  
                }
                out.print(json);
        } 
        catch(Exception e)
        {
            out.print(e);
        }
        finally {
            out.close();
        }
    }

    // <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
     */
    
    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>

}