/*
* 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.security.auth.spi;
import java.util.Map;
import java.util.HashSet;
import javax.security.auth.Subject;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.spi.LoginModule;
import org.jboss.security.SecurityAssociation;
import org.jboss.security.SimplePrincipal;
import org.jboss.security.RunAsIdentity;
/** A login module that establishes a run-as role for the duration of the login
* phase of authentication. It can be used to allow another login module
* interact with a secured EJB that provides authentication services.
*
* @author Scott.Stark@jboss.org
* @version $Revision: 57203 $
*/
public class RunAsLoginModule implements LoginModule
{
private String roleName;
private String principalName;
private boolean pushedRole;
/** Look for the roleName option that specifies the role to use as the
* run-as role. If not specified a default role name of nobody is used.
*/
public void initialize(Subject subject, CallbackHandler handler,
Map sharedState, Map options)
{
roleName = (String) options.get("roleName");
if( roleName == null )
roleName = "nobody";
principalName = (String) options.get("principalName");
if( principalName == null )
principalName = "nobody";
}
/** Push the run as role using the SecurityAssociation.pushRunAsIdentity method
*@see SecurityAssociation#pushRunAsIdentity(RunAsIdentity)
*/
public boolean login()
{
RunAsIdentity runAsRole = new RunAsIdentity(roleName, principalName);
SecurityAssociation.pushRunAsIdentity(runAsRole);
pushedRole = true;
return true;
}
/** Calls abort to pop the run-as role
*/
public boolean commit()
{
return abort();
}
/** Pop the run as role using the SecurityAssociation.popRunAsIdentity method
*@see SecurityAssociation#popRunAsIdentity()
*/
public boolean abort()
{
if( pushedRole == false )
return false;
SecurityAssociation.popRunAsIdentity();
return true;
}
public boolean logout()
{
return true;
}
}