/*
* JBoss, Home of Professional Open Source
* Copyright 2007, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt 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.Principal;
import javax.ejb.EJBAccessException;
import javax.security.auth.Subject;
import org.jboss.aop.advice.Interceptor;
import org.jboss.aop.joinpoint.Invocation;
import org.jboss.aop.joinpoint.MethodInvocation;
import org.jboss.ejb3.Container;
import org.jboss.ejb3.EJBContainer;
import org.jboss.ejb3.annotation.SecurityDomain;
import org.jboss.logging.Logger;
import org.jboss.security.SecurityContext;
import org.jboss.security.SecurityIdentity;
import org.jboss.security.SecurityUtil;
import org.jboss.security.integration.JNDIBasedSecurityManagement;
import org.jboss.security.integration.ejb.EJBAuthenticationHelper;
//$Id$
/**
* Authentication Interceptor
* @author <a href="mailto:bill@jboss.org">Bill Burke</a>
* @author Anil.Saldhana@redhat.com
* @since Aug 16, 2007
* @version $Revision$
*/
public class Ejb3AuthenticationInterceptorv2 implements Interceptor
{
protected Logger log = Logger.getLogger(this.getClass());
private EJBContainer container;
public Ejb3AuthenticationInterceptorv2(Container container)
{
this.container = (EJBContainer) container;
}
public String getName()
{
return getClass().getName();
}
public Object invoke(Invocation invocation) throws Throwable
{
//Check for ejbTimeOutCallback or ejbTimeOut method
SecurityHelper shelper = new SecurityHelper();
MethodInvocation mi = (MethodInvocation) invocation;
Method method = mi.getMethod();
if(shelper.isEJBTimeOutCallback(method) ||
shelper.containsTimeoutAnnotation(container, method) ||
shelper.isMDB(container))
return invocation.invokeNext();
SecurityIdentity si = null;
SecurityContext sc = SecurityActions.getSecurityContext();
SecurityContext invSC = (SecurityContext) invocation.getMetaData("security","context");
SecurityDomain domain = (SecurityDomain)container.resolveAnnotation(SecurityDomain.class);
boolean domainExists = domain != null && domain.value() != null
&& domain.value().length() > 0;
/**
* TODO: Decide if you want to allow zero security based on non-availability
* of a security domain, as per the configuration on the container
*/
if(domainExists)
{
Principal p = null;
Object cred = null;
//There is no security context at all
if(sc == null && invSC == null)
{
sc = SecurityActions.createSecurityContext(domain.value());
SecurityActions.setSecurityContext(sc);
}
if(shelper.isLocalCall(mi))
{
if(sc == null)
throw new IllegalStateException("Security Context null on Local call");
si = sc.getUtil().getSecurityIdentity();
}
else
{
if(invSC == null && sc == null)
throw new IllegalStateException("Security Context is not available");
//If there was a SecurityContext over the invocation, that takes preference
if(invSC != null)
{
sc = invSC;
p = sc.getUtil().getUserPrincipal();
cred = sc.getUtil().getCredential();
String unprefixed = SecurityUtil.unprefixSecurityDomain(domain.value());
sc = SecurityActions.createSecurityContext(p,
cred, null, unprefixed);
//Set the security context
SecurityActions.setSecurityContext(sc);
sc.getUtil().setSecurityIdentity(invSC.getUtil().getSecurityIdentity());
}
}
sc = SecurityActions.getSecurityContext();
//TODO: Need to get the SecurityManagement instance
sc.setSecurityManagement(new JNDIBasedSecurityManagement());
//Check if there is a RunAs configured and can be trusted
EJBAuthenticationHelper helper = new EJBAuthenticationHelper(sc);
boolean trustedCaller = helper.isTrusted();
if(!trustedCaller)
{
Subject subject = new Subject();
//Authenticate the caller now
if(!helper.isValid(subject, method.getName()))
throw new EJBAccessException("Invalid User");
helper.pushSubjectContext(subject);
}
else
{
//Trusted caller. No need for authentication. Straight to authorization
}
}
else
{
//domain == null
/**
* Special Case when a bean with no security domain defined comes with a security
* context attached.
*/
if(invSC != null)
{
SecurityActions.setSecurityContext(invSC);
}
}
try
{
if(sc != null)
SecurityActions.pushCallerRunAsIdentity(sc.getOutgoingRunAs());
return invocation.invokeNext();
}
finally
{
if(shelper.isLocalCall(mi) && si != null)
SecurityActions.getSecurityContext().getUtil().setSecurityIdentity(si);
}
}
}