001/**
002 *
003 * Copyright the original author or authors
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.jivesoftware.smack.sasl.core;
018
019import javax.security.auth.callback.CallbackHandler;
020
021import org.jivesoftware.smack.SmackException;
022import org.jivesoftware.smack.sasl.SASLMechanism;
023
024/**
025 * Implementation of the SASL ANONYMOUS mechanism.
026 *
027 * @author Jay Kline
028 */
029public class SASLAnonymous extends SASLMechanism {
030
031    public static final String NAME = "ANONYMOUS";
032
033    @Override
034    public String getName() {
035        return NAME;
036    }
037
038    @Override
039    public int getPriority() {
040        return 500;
041    }
042
043    @Override
044    protected void authenticateInternal(CallbackHandler cbh)
045                    throws SmackException {
046        // Nothing to do here
047    }
048
049    @Override
050    protected byte[] getAuthenticationText() throws SmackException {
051        // ANONYMOUS has no initial response, return null
052        return null;
053    }
054
055    @Override
056    public SASLAnonymous newInstance() {
057        return new SASLAnonymous();
058    }
059
060    @Override
061    public void checkIfSuccessfulOrThrow() throws SmackException {
062        // SASL Anonymous is always successful :)
063    }
064
065}