/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source 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 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.security;
import com.caucho.loader.EnvironmentClassLoader;
import com.caucho.util.L10N;
import java.security.*;
import java.util.ArrayList;
import java.util.logging.Logger;
/**
* Defines the policy for the current security context.
*/
public class PolicyImpl extends Policy {
private static Logger _log;
private static L10N _L;
private static final PolicyImpl _policy = new PolicyImpl();
private ClassLoader _systemClassLoader;
private Policy _parent;
private PolicyImpl()
{
_parent = Policy.getPolicy();
_systemClassLoader = ClassLoader.getSystemClassLoader();
}
public static PolicyImpl getPolicy()
{
return _policy;
}
public static void init()
{
Policy.setPolicy(_policy);
}
public PermissionCollection getPermissions(CodeSource codesource)
{
PermissionCollection perms = new Permissions();
perms.add(new AllPermission());
return perms;
}
public PermissionCollection getPermissions(ProtectionDomain domain)
{
PermissionCollection perms = new Permissions();
perms.add(new AllPermission());
return perms;
}
public boolean implies(ProtectionDomain domain, Permission permission)
{
/*
if (domain == null)
return true; // handle null value passed from RMI
*/
ClassLoader loader = domain.getClassLoader();
if (loader == _systemClassLoader)
return true;
// XXX: temporary to restore default security-manager
if (true)
return true;
if (true && _parent != null)
return _parent.implies(domain, permission);
else if (true)
return true;
for (; loader != null; loader = loader.getParent()) {
if (loader instanceof EnvironmentClassLoader) {
EnvironmentClassLoader envLoader;
envLoader = (EnvironmentClassLoader) loader;
ArrayList<Permission> perms = envLoader.getPermissions();
if (perms == null)
return _parent.implies(domain, permission);
for (int i = perms.size() - 1; i >= 0; i--) {
Permission perm = perms.get(i);
if (permission.implies(perm))
return true;
}
return _parent.implies(domain, permission);
}
}
if (loader == null)
return true;
return true;
}
public void refresh()
{
}
private Logger log()
{
if (_log == null)
_log = Logger.getLogger(PolicyImpl.class.getName());
return _log;
}
private L10N L()
{
if (_L == null)
_L = new L10N(PolicyImpl.class);
return _L;
}
public String toString()
{
return "PolicyImpl[]";
}
}