/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, 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.ejb.plugins;
import java.security.Principal;
import javax.ejb.EJBContext;
import javax.naming.InitialContext;
import org.jboss.ejb.Container;
import org.jboss.ejb.EJBProxyFactoryContainer;
import org.jboss.ejb.EnterpriseContext;
import org.jboss.invocation.Invocation;
import org.jboss.logging.Logger;
import org.jboss.security.AuthenticationManager;
import org.jboss.security.SecurityProxy;
import org.jboss.security.SecurityProxyFactory;
/**
* The SecurityProxyInterceptor is where the EJB custom security proxy
* integration is performed. This interceptor is dynamically added to container
* interceptors when the deployment descriptors specifies a security
* proxy. It is added just before the container interceptor so that the
* interceptor has access to the EJB instance and context.
*
* @author <a href="mailto:Scott.Stark@jboss.org">Scott Stark</a>.
* @version $Revision: 81030 $
*/
public class SecurityProxyInterceptor
extends AbstractInterceptor
{
/**
* The JNDI name of the SecurityProxyFactory used to wrap security
* proxy objects that do not implement the SecurityProxy interface
*/
public final String SECURITY_PROXY_FACTORY_NAME =
"java:/SecurityProxyFactory";
/** Instance logger. */
protected Logger log = Logger.getLogger(this.getClass());
protected AuthenticationManager securityManager;
/**
* @supplierCardinality 0..1
* @clientCardinality 1
* @supplierQualifier custom security
*/
protected SecurityProxy securityProxy;
public SecurityProxyInterceptor()
{
super();
}
public void setContainer(Container container)
{
super.setContainer(container);
if( container != null )
{
securityManager = container.getSecurityManager();
Object secProxy = container.getSecurityProxy();
if( secProxy != null )
{
// If this is not a SecurityProxy instance then use the default
// SecurityProxy implementation
if( (secProxy instanceof SecurityProxy) == false )
{
try
{
// Get default SecurityProxyFactory from JNDI at
InitialContext iniCtx = new InitialContext();
SecurityProxyFactory proxyFactory =
(SecurityProxyFactory)iniCtx.lookup(SECURITY_PROXY_FACTORY_NAME);
securityProxy = proxyFactory.create(secProxy);
}
catch (Exception e)
{
log.error("Failed to initialze DefaultSecurityProxy", e);
}
}
else
{
securityProxy = (SecurityProxy) secProxy;
}
// Initialize the securityProxy
try
{
EJBProxyFactoryContainer ic =
(EJBProxyFactoryContainer)container;
Class beanHome = ic.getHomeClass();
Class beanRemote = ic.getRemoteClass();
Class beanLocalHome = ic.getLocalHomeClass();
Class beanLocal = ic.getLocalClass();
if( beanLocal == null )
{
securityProxy.init(beanHome, beanRemote, securityManager);
}
else
{
securityProxy.init(beanHome, beanRemote, beanLocalHome,
beanLocal, securityManager);
}
}
catch(Exception e)
{
log.error("Failed to initialze SecurityProxy", e);
}
log.info("Initialized SecurityProxy=" + securityProxy);
}
}
}
// Container implementation --------------------------------------
public void start() throws Exception
{
super.start();
}
public Object invokeHome(Invocation mi) throws Exception
{
// Apply any custom security checks
if( securityProxy != null )
{
EJBContext ctx = null;
EnterpriseContext ectx = (EnterpriseContext)mi.getEnterpriseContext();
if( ectx != null )
ctx = ectx.getEJBContext();
Object[] args = mi.getArguments();
securityProxy.setEJBContext(ctx);
try
{
securityProxy.invokeHome(mi.getMethod(), args);
}
catch(SecurityException e)
{
Principal principal = mi.getPrincipal();
String msg = "SecurityProxy.invokeHome exception, principal=" + principal;
log.error(msg, e);
throw e;
}
}
return getNext().invokeHome(mi);
}
public Object invoke(Invocation mi) throws Exception
{
// Apply any custom security checks
if( securityProxy != null )
{
EnterpriseContext ectx = (EnterpriseContext)mi.getEnterpriseContext();
Object bean = ectx.getInstance();
EJBContext ctx = ectx.getEJBContext();
Object[] args = mi.getArguments();
securityProxy.setEJBContext(ctx);
try
{
securityProxy.invoke(mi.getMethod(), args, bean);
}
catch(SecurityException e)
{
Principal principal = mi.getPrincipal();
String msg = "SecurityProxy.invoke exception, principal="+principal;
log.error(msg, e);
throw e;
}
}
return getNext().invoke(mi);
}
}