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// Tags: not-a-test
// Copyright (C) 2006 Andrew John Hughes <gnu_andrew@member.fsf.org>
// This file is part of Mauve.
// Mauve is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
// Mauve is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Mauve; see the file COPYING. If not, write to
// the Free Software Foundation, 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
package gnu.testlet.java.lang.management;
import java.lang.management.ManagementPermission;
import java.security.Permission;
import java.security.AccessControlException;
import java.util.PropertyPermission;
/**
* An evil {@link java.lang.SecurityManager} which disallows use
* of the management beans.
*
* @author <a href="mailto:gnu_andrew@member.fsf.org">Andrew John Hughes</a>
*/
public class BadGuy
extends SecurityManager
{
private final Permission propertyPermission = new PropertyPermission("*", "read,write");
private final Permission monitorPermission = new ManagementPermission("monitor");
private final Permission controlPermission = new ManagementPermission("control");
private SecurityManager oldManager;
/**
* Checks permissions and disallows property access or management
* control and monitoring.
*
* @param p the request permission.
* @throws AccessControlException if property access, management control,
* or monitoring is requested.
*/
public void checkPermission(Permission p)
{
if (propertyPermission.implies(p))
throw new AccessControlException("Property access disallowed.", p);
if (controlPermission.implies(p))
throw new AccessControlException("Management control disallowed.", p);
if (monitorPermission.implies(p))
throw new AccessControlException("Monitoring disallowed.", p);
}
/**
* Installs this security manager in place of the current one.
*/
public void install()
{
SecurityManager oldsm = System.getSecurityManager();
if (oldsm == this)
throw new IllegalStateException("already installed");
oldManager = oldsm;
System.setSecurityManager(this);
}
/**
* Reinstates the original security manager.
*/
public void uninstall()
{
System.setSecurityManager(oldManager);
}
}
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