org.wildfly.security.sasl.util.TLSServerEndPointChannelBindingSaslServerFactory Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2015 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.wildfly.security.sasl.util;
import java.io.IOException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Map;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.UnsupportedCallbackException;
import javax.security.sasl.SaslException;
import javax.security.sasl.SaslServer;
import javax.security.sasl.SaslServerFactory;
import org.wildfly.security.auth.callback.ChannelBindingCallback;
import org.wildfly.security.auth.callback.SSLCallback;
import org.wildfly.security.ssl.TLSServerEndPointChannelBinding;
import org.wildfly.security.x500.X500;
/**
* A SASL server factory which implements the {@code tls-server-end-point} channel binding algorithm. The channel
* binding will not be activated unless this SASL server factory wraps a {@link SSLSaslServerFactory}.
*
* @author David M. Lloyd
*/
public final class TLSServerEndPointChannelBindingSaslServerFactory extends AbstractDelegatingSaslServerFactory {
/**
* Construct a new instance.
*
* @param delegate the delegate server factory
*/
public TLSServerEndPointChannelBindingSaslServerFactory(final SaslServerFactory delegate) {
super(delegate);
}
public SaslServer createSaslServer(final String mechanism, final String protocol, final String serverName, final Map props, final CallbackHandler cbh) throws SaslException {
return super.createSaslServer(mechanism, protocol, serverName, props, new CallbackHandler() {
private X509Certificate[] certs;
public void handle(final Callback[] callbacks) throws IOException, UnsupportedCallbackException {
ArrayList list = new ArrayList<>(Arrays.asList(callbacks));
final Iterator iterator = list.iterator();
while (iterator.hasNext()) {
Callback callback = iterator.next();
if (callback instanceof SSLCallback) {
final SSLCallback sslCallback = (SSLCallback) callback;
certs = X500.asX509CertificateArray(sslCallback.getSslSession().getPeerCertificates());
} else if (callback instanceof ChannelBindingCallback) {
TLSServerEndPointChannelBinding.handleChannelBindingCallback((ChannelBindingCallback) callback, certs);
iterator.remove();
}
}
if (! list.isEmpty()) {
cbh.handle(list.toArray(new Callback[list.size()]));
}
}
});
}
}