/*
* JBoss, Home of Professional Open Source.
* Copyright (c) 2011, Red Hat, Inc., 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.as.ejb3.security;
import java.security.AccessController;
import java.security.PrivilegedAction;
import javax.ejb.EJBAccessException;
import javax.security.jacc.PolicyContext;
import org.jboss.invocation.Interceptor;
import org.jboss.invocation.InterceptorContext;
import org.jboss.security.SecurityRolesAssociation;
import org.wildfly.security.manager.WildFlySecurityManager;
import static java.security.AccessController.doPrivileged;
/**
* Establish the security context.
*
* @author <a href="mailto:cdewolf@redhat.com">Carlo de Wolf</a>
* @author Anil Saldhana
*/
public class SecurityContextInterceptor implements Interceptor {
private final PrivilegedAction<Void> pushAction;
private final PrivilegedAction<Void> popAction;
private final String policyContextID;
public SecurityContextInterceptor(final SecurityContextInterceptorHolder holder) {
this.pushAction = new PrivilegedAction<Void>() {
@Override
public Void run() {
holder.securityManager.push(holder.securityDomain);
try {
if (holder.skipAuthentication == false) {
holder.securityManager.authenticate(holder.runAs, holder.runAsPrincipal, holder.extraRoles);
}
if (holder.principalVsRolesMap != null) {
SecurityRolesAssociation.setSecurityRoles(holder.principalVsRolesMap);
}
} catch (Throwable t) {
// undo the push actions on failure
if (holder.principalVsRolesMap != null) {
// clear the threadlocal
SecurityRolesAssociation.setSecurityRoles(null);
}
holder.securityManager.pop();
if (t instanceof SecurityException) {
throw new EJBAccessException(t.getMessage());
}
throw t;
}
return null;
}
};
this.popAction = new PrivilegedAction<Void>() {
@Override
public Void run() {
if (holder.principalVsRolesMap != null) {
// Clear the threadlocal
SecurityRolesAssociation.setSecurityRoles(null);
}
holder.securityManager.pop();
return null;
}
};
this.policyContextID = holder.policyContextID;
}
@Override
public Object processInvocation(final InterceptorContext context) throws Exception {
// TODO - special cases need to be handled where SecurityContext not established or minimal unauthenticated principal context instead.
String previousContextID = this.setContextID(this.policyContextID);
if (WildFlySecurityManager.isChecking()) {
doPrivileged(pushAction);
} else {
pushAction.run();
}
try {
return context.proceed();
} finally {
this.setContextID(previousContextID);
if (WildFlySecurityManager.isChecking()) {
doPrivileged(popAction);
} else {
popAction.run();
}
}
}
/**
* <p>
* Sets the JACC contextID using a privileged action and returns the previousID from the {@code PolicyContext}.
* </p>
*
* @param contextID the JACC contextID to be set.
* @return the previous contextID as retrieved from the {@code PolicyContext}.
*/
protected String setContextID(final String contextID) {
if (! WildFlySecurityManager.isChecking()) {
final String previousID = PolicyContext.getContextID();
PolicyContext.setContextID(contextID);
return previousID;
} else {
final PrivilegedAction<String> action = new SetContextIDAction(contextID);
return AccessController.doPrivileged(action);
}
}
/**
* PrivilegedAction that sets the {@code PolicyContext} id.
*/
private static class SetContextIDAction implements PrivilegedAction<String> {
private String contextID;
SetContextIDAction(final String contextID) {
this.contextID = contextID;
}
@Override
public String run() {
final String previousID = PolicyContext.getContextID();
PolicyContext.setContextID(this.contextID);
return previousID;
}
}
}