e1400500_kotiteht4

package fi.vamk.e1400500;

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

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

/*********************************************************************
*
* 1.  NAME
*     LoginCookie.java
* 2.  DESCRIPTION
*     Basic html login form
* 3.  VERSIONS
*       Original:
*         13.12.2016 / Sami Kärkkäinen
*
*       Version history:
*       $Log$
*
**********************************************************************/


/**
 * Servlet implementation class LoginCookie
 */
@WebServlet("/LoginCookie")
public class LoginCookie extends HttpServlet {
    private static final long serialVersionUID = 1L;

    /**
     * @see HttpServlet#HttpServlet()
     */
    public LoginCookie() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        Cookie[] cookies = request.getCookies();
        PrintWriter out = response.getWriter();
        String username = "";
        String password = "";

        if(cookies!=null){
            for(int i=0;i<cookies.length;i++){
                Cookie c = cookies[i];
                if(c.getName().equals("username")){
                    username = c.getValue();
                }
                if(c.getName().equals("password")){
                    password = c.getValue();
                }
            }
        }
        out.println("<form method=post>Username:<input type=text name=username value='" + username +"'></br>Password:<input type=password name=password></br><input type=submit value=Login></form>");
    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        String username = request.getParameter("username");
        String password = request.getParameter("password");
        Cookie userCookie = new Cookie("username", username);
        Cookie passwordCookie = new Cookie("password", password);

        userCookie.setPath("/");
        passwordCookie.setPath("/");
        userCookie.setMaxAge(7*24*60*60);
        passwordCookie.setMaxAge(7*24*60*60);
        response.addCookie(userCookie);
        response.addCookie(passwordCookie);

        PrintWriter out = response.getWriter();
        out.println("<h2>Tervetuloa " + username + "!</h2><form method=get><input type=submit value=Logout></form>");
    }
}