/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.felix.example.jaas.app.internal;
import java.io.IOException;
import java.io.PrintWriter;
import javax.security.auth.Subject;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.login.LoginContext;
import javax.security.auth.login.LoginException;
import javax.servlet.Servlet;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Service;
@Component
@Service(value = Servlet.class)
@Property(name = "alias",value = "/jaas/global")
public class GlobalConfigDemoServlet extends HttpServlet
{
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
{
//Demonstrates the JAAS authentication if the
// 1. Replace Global configuration policy is used
//
//This needs to be enabled via configuration of 'Apache Felix JAAS Configuration SPI'
//In that case client code does not have to provide explicit configuration
PrintWriter pw = resp.getWriter();
CallbackHandler handler = new ServletRequestCallbackHandler(req);
Subject subject = new Subject();
final ClassLoader cl = Thread.currentThread().getContextClassLoader();
try
{
Thread.currentThread().setContextClassLoader(getClass().getClassLoader());
LoginContext lc = new LoginContext("sample", subject, handler);
lc.login();
pw.println("Principal authentication successful");
pw.println(subject);
}
catch (LoginException e)
{
handleAuthenticationFailure(e,pw);
}
finally
{
Thread.currentThread().setContextClassLoader(cl);
}
}
private void handleAuthenticationFailure(LoginException e, PrintWriter pw)
{
pw.println("Authentication Failed");
pw.println(e);
}
}