/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, 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.ejb3.security;
import java.lang.reflect.Method;
import java.security.CodeSource;
import javax.security.jacc.EJBMethodPermission;
import org.jboss.aop.advice.Interceptor;
import org.jboss.aop.joinpoint.Invocation;
import org.jboss.aop.joinpoint.MethodInvocation;
import org.jboss.aspects.remoting.InvokeRemoteInterceptor;
import org.jboss.remoting.InvokerLocator;
import org.jboss.security.RealmMapping;
/**
* This interceptor is where the JACC authorization is performed.
*
* @author <a href="mailto:Scott.Stark@jboss.org">Scott Stark</a>.
* @version $Revision$
*/
public class JaccAuthorizationInterceptor implements Interceptor
{
public static final String JACC = "JACC";
public static final String CTX = "ctx";
private String ejbName;
private CodeSource ejbCS;
private RealmMapping realmMapping;
public JaccAuthorizationInterceptor(String ejbName, CodeSource cs)
{
this.ejbName = ejbName;
this.ejbCS = cs;
}
public String getName()
{
return "JaccAuthorizationInterceptor";
}
public void setRealmMapping(RealmMapping ssm)
{
this.realmMapping = ssm;
}
public Object invoke(Invocation inv) throws Throwable
{
try
{
checkSecurityAssociation((MethodInvocation) inv);
return inv.invokeNext();
}
catch (ClassCastException e)
{
throw new RuntimeException("Jacc authorization is only available for method invocations", e);
}
}
/**
* Authorize the caller's access to the method invocation
*/
private void checkSecurityAssociation(MethodInvocation mi) throws Throwable
{
String contextID = (String) mi.getMetaData(JACC, CTX);
SecurityActions.setContextID(contextID);
//EJBArgsPolicyContextHandler.setArgs(mi.getArguments());
//Set custom JACC policy handlers - Following used in EJB 2, but just seems to be ignored
//BeanMetaDataPolicyContextHandler.setMetaData(null);
Method m = mi.getMethod();
InvokerLocator locator = (InvokerLocator) mi.getMetaData(InvokeRemoteInterceptor.REMOTING, InvokeRemoteInterceptor.INVOKER_LOCATOR);
String iface = (locator != null) ? "Remote" : "Local";
EJBMethodPermission methodPerm = new EJBMethodPermission(ejbName, iface, m);
if(realmMapping != null)
{
JaccHelper.checkPermission(ejbCS, methodPerm,realmMapping);
}
/*// Get the caller
Subject caller = SecurityActions.getContextSubject();
Principal[] principals = null;
if( caller != null )
{
// Get the caller principals
Set principalsSet = caller.getPrincipals();
principals = new Principal[principalsSet.size()];
principalsSet.toArray(principals);
}
ProtectionDomain pd = new ProtectionDomain (ejbCS, null, null, principals);
if( policy.implies(pd, methodPerm) == false )
{
String msg = "Denied: "+methodPerm+", caller=" + caller;
SecurityException e = new SecurityException(msg);
throw e;
}*/
}
}
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