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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 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.sasl.anonymous;

import static org.jboss.sasl.anonymous.AbstractAnonymousFactory.ANONYMOUS;

import org.jboss.sasl.util.AbstractSaslClient;
import org.jboss.sasl.util.Charsets;
import org.jboss.sasl.util.SaslState;
import org.jboss.sasl.util.SaslStateContext;

import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.NameCallback;
import javax.security.sasl.SaslException;

/**
 * A client implementation of the RFC 4505 {@code ANONYMOUS} mechanism.
 *
 * @author David M. Lloyd
 */
public final class AnonymousSaslClient extends AbstractSaslClient {

    private final SaslState initial = new SaslState() {
        public byte[] evaluateMessage(final SaslStateContext context, final byte[] message) throws SaslException {
            if (message != null && message.length > 0) {
                throw new SaslException("Invalid challenge received from server");
            }
            NameCallback nameCallback = new NameCallback("Authentication name");
            handleCallbacks(nameCallback);
            String name = nameCallback.getName();
            if (name == null) {
                throw new SaslException("Authentication name is missing");
            }
            if (name.length() > 255) {
                throw new SaslException("Authentication name string is too long");
            }
            if (name.isEmpty()) {
                throw new SaslException("Authentication name is empty");
            }
            context.negotiationComplete();
            return name == null ? NO_BYTES : name.getBytes(Charsets.UTF_8);
        }
    };

    /**
     * Construct a new instance.
     *
     * @param protocol the protocol
     * @param serverName the server name
     * @param callbackHandler the callback handler to use for authentication
     * @param authorizationId the possibly {@code null} protocol-dependent name used for authorization
     */
    protected AnonymousSaslClient(final String protocol, final String serverName, final CallbackHandler callbackHandler, final String authorizationId) {
        super(ANONYMOUS, protocol, serverName, callbackHandler, authorizationId, true);
        getContext().setNegotiationState(initial);
    }
}