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misuperproyecto
Commit ab9d7927 by Emanuel Lugo
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LogginHandler y RecursoProtegido - Estructura anhadida

parent 0dfb87a5
Showing with 79 additions and 0 deletions
src/main/java/com/roshka/proyectofinal/LoginHandler.java 0 → 100644
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class LoginHandler extends HttpServlet {
public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/html");
PrintWriter out = res.getWriter();
// Get the user's name and password
String name = req.getParameter("name");
String passwd = req.getParameter("passwd");
// Check the name and password for validity
if (!allowUser(name, passwd)) {
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=\"/login.html\">try again</A>");
out.println("</BODY></HTML>");
}
else {
// Valid login. Make a note in the session object.
HttpSession session = req.getSession(true);
session.putValue("logon.isDone", name); // just a marker object
// Try redirecting the client to the page he first tried to access
try {
String target = (String) session.getValue("login.target");
if (target != null)
res.sendRedirect(target);
return;
}
catch (Exception ignored) { }
// Couldn't redirect to the target. Redirect to the site's home page.
res.sendRedirect(req.getScheme() + "://" +
req.getServerName() + ":" + req.getServerPort());
}
}
protected boolean allowUser(String user, String passwd) {
return true; // trust everyone
}
}
\ No newline at end of file
src/main/java/com/roshka/proyectofinal/ProtectedResource.java 0 → 100644
package com.roshka.proyectofinal;
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class ProtectedResource extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
res.setContentType("text/plain");
PrintWriter out = res.getWriter();
// Get the session
HttpSession session = req.getSession(true);
// Does the session indicate this user already logged in?
Object done = session.getValue("logon.isDone");
// marker object
if (done == null) {
// No logon.isDone means he hasn't logged in. // Save the request URL as the true target and redirect to the login page
session.putValue("login.target",
HttpUtils.getRequestURL(req).toString()); res.sendRedirect(req.getScheme() + "://" + req.getServerName() + ":"
+ req.getServerPort() + "/login.html");
return;
}
// If we get here, the user has logged in and can see the goods
out.println("Unpublished O'Reilly book manuscripts await you!");
}
}
\ No newline at end of file
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