001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.security.pacl.checker;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    
020    import java.security.Permission;
021    
022    import sun.reflect.Reflection;
023    
024    /**
025     * @author Brian Wing Shun Chan
026     */
027    public class ReflectChecker extends BaseChecker {
028    
029            public void afterPropertiesSet() {
030            }
031    
032            public boolean implies(Permission permission) {
033                    int stackIndex = getStackIndex(10, 9);
034    
035                    Class<?> callerClass = Reflection.getCallerClass(stackIndex);
036    
037                    if (isTrustedCaller(callerClass, permission)) {
038                            return true;
039                    }
040    
041                    logSecurityException(_log, "Attempted to reflect");
042    
043                    return false;
044            }
045    
046            private static Log _log = LogFactoryUtil.getLog(ReflectChecker.class);
047    
048    }