1 /*
   2  * Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.jfr.jmx.security;
  27 
  28 import java.lang.management.ManagementFactory;
  29 import java.util.concurrent.CountDownLatch;
  30 
  31 import javax.management.Notification;
  32 import javax.management.NotificationListener;
  33 import javax.management.ObjectName;
  34 
  35 import jdk.management.jfr.FlightRecorderMXBean;
  36 import jdk.testlibrary.Asserts;
  37 
  38 import jdk.testlibrary.jfr.JmxHelper;
  39 /*
  40  * @test
  41  * @key jfr
  42  * @summary Test with minimal needed permissions. All functions should work.
  43  * @library /lib/testlibrary
  44  * @run main/othervm/secure=java.lang.SecurityManager/java.security.policy=listener.policy jdk.jfr.jmx.security.TestNotificationListenerPermission
  45  */
  46 public class TestNotificationListenerPermission {
  47     private static boolean gotSecurityException;
  48 
  49     static class TestListener implements NotificationListener {
  50         private final CountDownLatch latch = new CountDownLatch(1);
  51 
  52         @Override
  53         public void handleNotification(Notification arg0, Object arg1) {
  54             try {
  55                 System.getProperty("user.name");
  56             } catch (SecurityException se) {
  57                 se.printStackTrace();
  58                 gotSecurityException = true;
  59             }
  60             latch.countDown();
  61         }
  62 
  63         public void awaitNotication() throws InterruptedException {
  64             latch.await();
  65         }
  66     }
  67 
  68     public static void main(String[] args) throws Throwable {
  69         try {
  70             System.getProperty("user.name");
  71             Asserts.fail("Didn't get security exception. Test not configured propertly?");
  72         } catch (SecurityException se) {
  73             // as expected
  74         }
  75         FlightRecorderMXBean bean = JmxHelper.getFlighteRecorderMXBean();
  76         TestListener testListener = new TestListener();
  77         ManagementFactory.getPlatformMBeanServer().addNotificationListener(new ObjectName(FlightRecorderMXBean.MXBEAN_NAME), testListener, null, null);
  78         long id = bean.newRecording();
  79         bean.startRecording(id);
  80         testListener.awaitNotication();
  81         Asserts.assertTrue(gotSecurityException, "Should not get elevated privileges in notification handler!");
  82         bean.stopRecording(id);
  83         bean.closeRecording(id);
  84     }
  85 }