/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2014, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This 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 software 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.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.jboss.as.testsuite.integration.secman.module;

import java.security.AccessController;
import java.security.PrivilegedAction;

/**
 * Utility class which will be placed in a custom module deployed to the AS. It has only limited set of permissions granted in
 * its module.xml descriptor.
 *
 * @author Josef Cacek
 */
public class CheckJSMUtils {

    public static String getSystemProperty(final String propName) throws IllegalStateException {
        SecurityManager sm = System.getSecurityManager();
        if (sm != null) {
            return AccessController.doPrivileged(new PrivilegedAction<String>() {
                @Override
                public String run() {
                    return System.getProperty(propName);
                }
            });
        }
        throw new IllegalStateException("Java Security Manager is not initialized");
    }

    public static void checkRuntimePermission(final String permissionName) throws IllegalStateException {
        final SecurityManager sm = System.getSecurityManager();
        if (sm != null) {
            AccessController.doPrivileged(new PrivilegedAction<Void>() {
                @Override
                public Void run() {
                    sm.checkPermission(new RuntimePermission(permissionName));
                    return null;
                }
            });
        } else {
            throw new IllegalStateException("Java Security Manager is not initialized");
        }
    }

}
