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.sasl.SASLMechanism;
022
023/**
024 * Implementation of the SASL ANONYMOUS mechanism.
025 *
026 * @author Jay Kline
027 */
028public class SASLAnonymous extends SASLMechanism {
029
030    public static final String NAME = "ANONYMOUS";
031
032    @Override
033    public String getName() {
034        return NAME;
035    }
036
037    @Override
038    public int getPriority() {
039        return 500;
040    }
041
042    @Override
043    protected void authenticateInternal(CallbackHandler cbh) {
044        // Nothing to do here
045    }
046
047    @Override
048    protected byte[] getAuthenticationText() {
049        // ANONYMOUS has no initial response, return null
050        return null;
051    }
052
053    @Override
054    public SASLAnonymous newInstance() {
055        return new SASLAnonymous();
056    }
057
058    @Override
059    public void checkIfSuccessfulOrThrow() {
060        // SASL Anonymous is always successful :)
061    }
062
063    @Override
064    public boolean requiresPassword() {
065        return false;
066    }
067}