/*
* 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.web.tomcat.security;
import java.security.PrivilegedActionException;
import org.apache.catalina.InstanceEvent;
import org.apache.catalina.InstanceListener;
import org.apache.catalina.Wrapper;
import org.jboss.logging.Logger;
import org.jboss.metadata.javaee.jboss.RunAsIdentityMetaData;
import org.jboss.metadata.web.jboss.JBossWebMetaData;
import org.jboss.security.RunAsIdentity;
import org.jboss.security.SecurityConstants;
import org.jboss.security.SecurityContext;
import org.jboss.security.SecurityUtil;
/**
* An InstanceListener used to push/pop the servlet run-as identity for the
* init/destroy lifecycle events.
*
* @author Scott.Stark@jboss.org
* @version $Revision: 81037 $
*/
public class RunAsListener implements InstanceListener
{
/** There is no api to install an initialized listener so the
* WebMetaData had to be passed via a thread local.
*/
public static ThreadLocal<JBossWebMetaData> metaDataLocal = new ThreadLocal<JBossWebMetaData>();
private static Logger log = Logger.getLogger(RunAsListener.class);
private JBossWebMetaData metaData;
public RunAsListener()
{
this.metaData = metaDataLocal.get();
}
/**
* Push the run-as identity on the before init/destroy, pop it on the
* after init/destroy events.
*
* @param event - the type of instance event
*/
public void instanceEvent(InstanceEvent event)
{
Wrapper servlet = event.getWrapper();
String type = event.getType();
if (servlet != null && metaData != null)
{
boolean trace = log.isTraceEnabled();
String name = servlet.getName();
RunAsIdentityMetaData identity = metaData.getRunAsIdentity(name);
RunAsIdentity runAsIdentity = null;
if(identity != null)
{
runAsIdentity = new RunAsIdentity(identity.getRoleName(),
identity.getPrincipalName(), identity.getRunAsRoles());
}
if (trace)
log.trace(name + ", runAs: " + identity);
// Push the identity on the before init/destroy
if( type.equals(InstanceEvent.BEFORE_INIT_EVENT)
|| type.equals(InstanceEvent.BEFORE_DESTROY_EVENT)
|| type.equals(InstanceEvent.BEFORE_SERVICE_EVENT) )
{
ensureSecurityContext();
SecurityAssociationActions.pushRunAsIdentity(runAsIdentity);
}
// Pop the identity on the after init/destroy
else if( type.equals(InstanceEvent.AFTER_INIT_EVENT)
|| type.equals(InstanceEvent.AFTER_DESTROY_EVENT)
|| type.equals(InstanceEvent.AFTER_SERVICE_EVENT))
{
ensureSecurityContext();
SecurityAssociationActions.popRunAsIdentity();
}
}
}
/**
* Ensure that a security context is present
*/
private void ensureSecurityContext()
{
String securityDomain = metaData.getSecurityDomain();
if(securityDomain == null)
securityDomain = SecurityConstants.DEFAULT_APPLICATION_POLICY;
else
securityDomain = SecurityUtil.unprefixSecurityDomain(securityDomain);
if(SecurityAssociationActions.getSecurityContext() == null)
{
SecurityContext sc = null;
try
{
sc = SecurityAssociationActions.createSecurityContext(securityDomain);
}
catch (PrivilegedActionException e)
{
throw new RuntimeException(e);
}
SecurityAssociationActions.setSecurityContext(sc);
}
}
}