org.wildfly.security.sasl.util.TLSServerEndPointChannelBindingSaslClientFactory Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * 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.SaslClient;
import javax.security.sasl.SaslClientFactory;
import javax.security.sasl.SaslException;

import org.wildfly.common.math.HashMath;
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 client factory which implements the {@code tls-server-end-point} channel binding algorithm.  The channel
 * binding will not be activated unless this SASL client factory wraps a {@link SSLSaslClientFactory}.
 *
 * @author David M. Lloyd
 */
public final class TLSServerEndPointChannelBindingSaslClientFactory extends AbstractDelegatingSaslClientFactory {

    /**
     * Construct a new instance.
     *
     * @param delegate the delegate server factory
     */
    public TLSServerEndPointChannelBindingSaslClientFactory(final SaslClientFactory delegate) {
        super(delegate);
    }

    public SaslClient createSaslClient(final String[] mechanisms, final String authorizationId, final String protocol, final String serverName, final Map props, final CallbackHandler cbh) throws SaslException {
        return super.createSaslClient(mechanisms, authorizationId, protocol, serverName, props, new CallbackHandler() {
            private X509Certificate[] peerCerts;

            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;
                        peerCerts = X500.asX509CertificateArray(sslCallback.getSslSession().getPeerCertificates());
                    } else if (callback instanceof ChannelBindingCallback) {
                        TLSServerEndPointChannelBinding.handleChannelBindingCallback((ChannelBindingCallback) callback, peerCerts);
                        iterator.remove();
                    }
                }
                if (!list.isEmpty()) {
                    cbh.handle(list.toArray(new Callback[list.size()]));
                }
            }
        });
    }

    @SuppressWarnings("checkstyle:equalshashcode")
    public boolean equals(final Object other) {
        return other instanceof TLSServerEndPointChannelBindingSaslClientFactory && equals((TLSServerEndPointChannelBindingSaslClientFactory) other);
    }

    @SuppressWarnings("checkstyle:equalshashcode")
    public boolean equals(final AbstractDelegatingSaslClientFactory other) {
        return other instanceof TLSServerEndPointChannelBindingSaslClientFactory && equals((TLSServerEndPointChannelBindingSaslClientFactory) other);
    }

    @SuppressWarnings("checkstyle:equalshashcode")
    public boolean equals(final TLSServerEndPointChannelBindingSaslClientFactory other) {
        return super.equals(other);
    }

    protected int calculateHashCode() {
        return HashMath.multiHashOrdered(super.calculateHashCode(), getClass().hashCode());
    }
}