/**
* Copyright (c) 2000-present Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library 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 Lesser General Public License for more
* details.
*/
package com.liferay.portal.security.pacl.checker;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.security.pacl.Reflection;
import java.security.Permission;
/**
* @author Brian Wing Shun Chan
*/
public class SecurityChecker extends BaseChecker {
@Override
public void afterPropertiesSet() {
}
@Override
public boolean implies(Permission permission) {
String name = permission.getName();
if (name.equals(SECURITY_PERMISSION_GET_POLICY)) {
if (!hasGetPolicy(permission)) {
logSecurityException(_log, "Attempted to get the policy");
return false;
}
}
else if (name.equals(SECURITY_PERMISSION_SET_POLICY)) {
if (!hasSetPolicy(permission)) {
logSecurityException(_log, "Attempted to set the policy");
return false;
}
}
else {
if (_log.isDebugEnabled()) {
Thread.dumpStack();
}
logSecurityException(
_log,
"Attempted to " + permission.getName() + " on " +
permission.getActions());
return false;
}
return true;
}
protected boolean hasGetPolicy(Permission permission) {
int stackIndex = Reflection.getStackIndex(
new int[] {4, 4}, new int[] {4, 3});
Class<?> callerClass = Reflection.getCallerClass(stackIndex);
if (isTrustedCaller(callerClass, permission)) {
return true;
}
logSecurityException(_log, "Attempted to get the policy");
return false;
}
protected boolean hasSetPolicy(Permission permission) {
int stackIndex = Reflection.getStackIndex(
new int[] {4, 4}, new int[] {4, 3});
Class<?> callerClass = Reflection.getCallerClass(stackIndex);
if (isTrustedCaller(callerClass, permission)) {
return true;
}
logSecurityException(_log, "Attempted to set the policy");
return false;
}
private static final Log _log = LogFactoryUtil.getLog(
SecurityChecker.class);
}