/*
* JBoss, Home of Professional Open Source.
* Copyright 2017, 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 static java.security.AccessController.doPrivileged;
import java.lang.reflect.Method;
import java.security.AccessController;
import java.security.Policy;
import java.security.Principal;
import java.security.PrivilegedAction;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import java.security.ProtectionDomain;
import java.util.HashSet;
import java.util.Set;
import java.util.function.Function;
import javax.security.jacc.EJBMethodPermission;
import org.jboss.as.ee.component.Component;
import org.jboss.as.ee.component.ComponentView;
import org.jboss.as.ejb3.component.EJBComponent;
import org.jboss.as.ejb3.component.MethodIntf;
import org.jboss.as.ejb3.logging.EjbLogger;
import org.jboss.invocation.Interceptor;
import org.jboss.invocation.InterceptorContext;
import org.jboss.metadata.ejb.spec.MethodInterfaceType;
import org.wildfly.common.Assert;
import org.wildfly.security.auth.server.SecurityDomain;
import org.wildfly.security.auth.server.SecurityIdentity;
import org.wildfly.security.manager.WildFlySecurityManager;
/**
* @author <a href="mailto:psilva@redhat.com">Pedro Igor</a>
*/
public class JaccInterceptor implements Interceptor {
private final String viewClassName;
private final Method viewMethod;
public JaccInterceptor(String viewClassName, Method viewMethod) {
this.viewClassName = viewClassName;
this.viewMethod = viewMethod;
}
@Override
public Object processInvocation(InterceptorContext context) throws Exception {
Component component = context.getPrivateData(Component.class);
final SecurityDomain securityDomain = context.getPrivateData(SecurityDomain.class);
Assert.checkNotNullParam("securityDomain", securityDomain);
final SecurityIdentity currentIdentity = securityDomain.getCurrentSecurityIdentity();
if (component instanceof EJBComponent == false) {
throw EjbLogger.ROOT_LOGGER.unexpectedComponent(component, EJBComponent.class);
}
Method invokedMethod = context.getMethod();
ComponentView componentView = context.getPrivateData(ComponentView.class);
String viewClassOfInvokedMethod = componentView.getViewClass().getName();
// shouldn't really happen if the interceptor was setup correctly. But let's be safe and do a check
if (!viewClassName.equals(viewClassOfInvokedMethod) || !viewMethod.equals(invokedMethod)) {
throw EjbLogger.ROOT_LOGGER.failProcessInvocation(getClass().getName(), invokedMethod, viewClassOfInvokedMethod, viewMethod, viewClassName);
}
EJBComponent ejbComponent = (EJBComponent) component;
if(WildFlySecurityManager.isChecking()) {
try {
AccessController.doPrivileged((PrivilegedExceptionAction<Object>) () -> {
hasPermission(ejbComponent, componentView, invokedMethod, currentIdentity);
return null;
});
} catch (PrivilegedActionException e) {
throw e.getException();
}
} else {
hasPermission(ejbComponent, componentView, invokedMethod, currentIdentity);
}
// successful authorization, let the invocation proceed
return context.proceed();
}
private EJBMethodPermission createEjbMethodPermission(Method invokedMethod, EJBComponent ejbComponent, MethodInterfaceType methodIntfType) {
return new EJBMethodPermission(ejbComponent.getComponentName(), methodIntfType.name(), invokedMethod);
}
private void hasPermission(EJBComponent ejbComponent, ComponentView componentView, Method method, SecurityIdentity securityIdentity) {
MethodInterfaceType methodIntfType = getMethodInterfaceType(componentView.getPrivateData(MethodIntf.class));
EJBMethodPermission permission = createEjbMethodPermission(method, ejbComponent, methodIntfType);
ProtectionDomain domain = new ProtectionDomain (componentView.getProxyClass().getProtectionDomain().getCodeSource(), null, null, getGrantedRoles(securityIdentity));
Policy policy = WildFlySecurityManager.isChecking() ? doPrivileged((PrivilegedAction<Policy>) Policy::getPolicy) : Policy.getPolicy();
if (!policy.implies(domain, permission)) {
throw EjbLogger.ROOT_LOGGER.invocationOfMethodNotAllowed(method,ejbComponent.getComponentName());
}
}
/**
* <p>
* Gets the {@code MethodInterfaceType} that corresponds to the specified {@code MethodIntf}.
* </p>
*
* @param viewType the {@code MethodIntf} type to be converted.
* @return the converted type or {@code null} if the type cannot be converted.
*/
protected MethodInterfaceType getMethodInterfaceType(MethodIntf viewType) {
switch (viewType) {
case HOME:
return MethodInterfaceType.Home;
case LOCAL_HOME:
return MethodInterfaceType.LocalHome;
case SERVICE_ENDPOINT:
return MethodInterfaceType.ServiceEndpoint;
case LOCAL:
return MethodInterfaceType.Local;
case REMOTE:
return MethodInterfaceType.Remote;
case TIMER:
return MethodInterfaceType.Timer;
case MESSAGE_ENDPOINT:
return MethodInterfaceType.MessageEndpoint;
default:
return null;
}
}
/**
* Returns an array of {@link Principal} representing the roles associated with the identity
* invoking the EJB. This method will check performs checks against run as identities in order to
* resolve the correct set of roles to be granted.
*
* @param securityIdentity the identity invoking the EJB
* @return an array of {@link Principal} representing the roles associated with the identity
*/
public static Principal[] getGrantedRoles(SecurityIdentity securityIdentity) {
Set<String> roles = new HashSet<>();
securityIdentity.getRoles("ejb").forEach(roles::add);
return roles.stream().map((Function<String, Principal>) roleName -> (Principal) () -> roleName).toArray(Principal[]::new);
}
}