/*
* 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.jndi;
import org.jboss.naming.NamingContextFactory;
import org.jboss.security.SecurityContext;
import org.jboss.security.SimplePrincipal;
import javax.naming.Context;
import javax.naming.NamingException;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.security.Principal;
import java.util.Hashtable;
/** A naming provider InitialContextFactory implementation that combines the
* authentication phase with the InitialContext creation. During the
* getInitialContext callback from the JNDI naming, layer security context
* identity is populated with the username obtained from the
* Context.SECURITY_PRINCIPAL env property and the credentials from the
* Context.SECURITY_CREDENTIALS env property. There is no actual authentication
* of this information. It is merely made available to the jboss transport
* layer for incorporation into subsequent invocations. Authentication and
* authorization will occur on the server.
*
* @see javax.naming.spi.InitialContextFactory
*
* @author Scott.Stark@jboss.org
* @version $Revision: 105902 $
*/
public class JndiLoginInitialContextFactory extends NamingContextFactory
{
// InitialContextFactory implementation --------------------------
/** Take the env Context.SECURITY_PRINCIPAL and Context.SECURITY_CREDENTIALS
* and propagate these to the SecurityAssociation principal and credential.
* If Context.SECURITY_PRINCIPAL is a java.security.Principal then it is
* used as is, otherwise its treated as a name using toString and a
* SimplePrincipal is created. The Context.SECURITY_CREDENTIALS is passed
* as is.
* @param env
* @throws NamingException
*/
public Context getInitialContext(Hashtable env)
throws NamingException
{
// Get the login principal and credentials from the JNDI env
Object credentials = env.get(Context.SECURITY_CREDENTIALS);
Object principal = env.get(Context.SECURITY_PRINCIPAL);
Principal securityPrincipal = null;
/** Flag indicating if the SecurityAssociation existing at login should
be restored on logout.
*/
String flag = (String) env.get("jnp.multi-threaded");
if (Boolean.valueOf(flag).booleanValue() == true)
{
/* Turn on the server mode which uses thread local storage for
the principal information.
*/
SecurityAssociationActions.setServer();
}
boolean restoreLoginIdentity = false;
flag = (String) env.get("jnp.restoreLoginIdentity");
if( flag != null )
restoreLoginIdentity = Boolean.parseBoolean(flag);
SecurityContext initialSC = null;
if (restoreLoginIdentity)
initialSC = SecurityAssociationActions.getSecurityContext();
// See if the principal is a Principal or String
if( principal instanceof Principal )
{
securityPrincipal = (Principal) principal;
}
else
{
// Simply convert this to a name using toString
String username = principal.toString();
securityPrincipal = new SimplePrincipal(username);
}
SecurityContext sc = SecurityAssociationActions.createSecurityContext(securityPrincipal, credentials, null);
SecurityAssociationActions.setSecurityContext(sc);
// Now return the context using the standard jnp naming context factory
Context iniCtx = super.getInitialContext(env);
if( restoreLoginIdentity )
{
// Use a proxy to pop the stack when the context is closed
ClassLoader loader = SecurityAssociationActions.getContextClassLoader();
ContextProxy handler = new ContextProxy(iniCtx, initialSC);
Class[] ifaces = {Context.class};
iniCtx = (Context) Proxy.newProxyInstance(loader, ifaces, handler);
}
return iniCtx;
}
/**
*
*/
public static class ContextProxy implements InvocationHandler
{
private Context delegate;
private SecurityContext sc;
ContextProxy(Context delegate, SecurityContext sc)
{
this.delegate = delegate;
this.sc = sc;
}
public Object invoke(Object proxy, Method method, Object[] args)
throws Throwable
{
boolean close = false;
try
{
close = method.getName().equals("close");
return method.invoke(delegate, args);
}
catch(InvocationTargetException e)
{
throw e.getTargetException();
}
finally
{
if( close )
{
// Pop the security context on close
try
{
SecurityAssociationActions.setSecurityContext(sc);
}
catch(Throwable ignore)
{
}
}
}
}
}
}