org.ow2.easybeans.security.jacc.PolicyProvider Maven / Gradle / Ivy
/**
* EasyBeans
* Copyright (C) 2006 Bull S.A.S.
* Contact: [email protected]
*
* 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 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* --------------------------------------------------------------------------
* $Id: PolicyProvider.java 5369 2010-02-24 14:58:19Z benoitf $
* --------------------------------------------------------------------------
*/
package org.ow2.easybeans.security.jacc;
import java.security.Policy;
import org.ow2.easybeans.security.jacc.provider.JPolicy;
import org.ow2.easybeans.security.jacc.provider.JPolicyConfigurationFactory;
import org.ow2.util.log.Log;
import org.ow2.util.log.LogFactory;
/**
* Helper class for initializing the JACC provider.
* @author Florent Benoit
*/
public final class PolicyProvider {
/**
* JACC Policy Provider property.
*/
private static final String JACC_POLICY_PROVIDER = "javax.security.jacc.policy.provider";
/**
* JACC Policy Configuration Factory Provider property.
*/
private static final String JACC_POLICY_CONFIG_FACTORY_PROVIDER = "javax.security.jacc.PolicyConfigurationFactory.provider";
/**
* Only internal constructor, as it is an utility class.
*/
private PolicyProvider() {
}
/**
* Initial policy.
*/
private static Policy initialPolicy = null;
/**
* Logger.
*/
private static Log logger = LogFactory.getLog(PolicyProvider.class);
/**
* Init the JACC configuration.
* Defines in JACC chapter 2
* @throws SecurityException if JACC policy provider can not be set
*/
public static void init() throws SecurityException {
// Check if we have to use an existing policy provider
// Section 2.7
String javaPolicy = System.getProperty(JACC_POLICY_PROVIDER);
if (javaPolicy != null) {
try {
java.security.Policy.setPolicy((java.security.Policy) Class.forName(javaPolicy).newInstance());
} catch (ClassNotFoundException cnfe) {
// problem with property value of classpath
throw new SecurityException(cnfe.getMessage());
} catch (IllegalAccessException iae) {
// problem with policy class definition
throw new SecurityException(iae.getMessage());
} catch (InstantiationException ie) {
// problem with policy instantiation
throw new SecurityException(ie.getMessage());
} catch (ClassCastException cce) {
// Not instance of java.security.policy
throw new SecurityException(cce.getMessage());
}
logger.info("Using policy provider ''{0}''", javaPolicy);
} else {
// keep the previous policy
initialPolicy = Policy.getPolicy();
// Sets the EasyBeans delegating policy provider
logger.debug("Using EasyBeans policy provider ''{0}''.", JPolicy.class.getName());
java.security.Policy.setPolicy(JPolicy.getInstance());
}
// Defines the EasyBeans JACC provider if no provider is already defined
// Section 2.3
String jaccFactoryProvider = System.getProperty("JACC_POLICY_CONFIG_FACTORY_PROVIDER");
if (jaccFactoryProvider == null) {
// Set JACC provider
logger.debug("Using EasyBeans PolicyConfigurationFactory provider and EasyBeans Policy provider");
System.setProperty(JACC_POLICY_CONFIG_FACTORY_PROVIDER, JPolicyConfigurationFactory.class.getName());
} else {
logger.info("Using factory ''{0}'' as PolicyConfigurationFactory provider.", jaccFactoryProvider);
}
}
/**
* Stop the JACC configuration.
* @throws SecurityException if JACC policy provider cannot be stop
*/
public static void stop() throws SecurityException {
if (initialPolicy != null) {
Policy.setPolicy(initialPolicy);
}
}
}