/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.activemq.transport.amqp.client.sasl;
/**
* Implements the SASL PLAIN authentication Mechanism.
*
* User name and Password values are sent without being encrypted.
*/
public class PlainMechanism extends AbstractMechanism {
public static final String MECH_NAME = "PLAIN";
@Override
public int getPriority() {
return PRIORITY.MEDIUM.getValue();
}
@Override
public String getName() {
return MECH_NAME;
}
@Override
public byte[] getInitialResponse() {
String authzid = getAuthzid();
String username = getUsername();
String password = getPassword();
if (authzid == null) {
authzid = "";
}
if (username == null) {
username = "";
}
if (password == null) {
password = "";
}
byte[] authzidBytes = authzid.getBytes();
byte[] usernameBytes = username.getBytes();
byte[] passwordBytes = password.getBytes();
byte[] data = new byte[authzidBytes.length + 1 + usernameBytes.length + 1 + passwordBytes.length];
System.arraycopy(authzidBytes, 0, data, 0, authzidBytes.length);
System.arraycopy(usernameBytes, 0, data, 1 + authzidBytes.length, usernameBytes.length);
System.arraycopy(passwordBytes, 0, data, 2 + authzidBytes.length + usernameBytes.length, passwordBytes.length);
return data;
}
@Override
public byte[] getChallengeResponse(byte[] challenge) {
return EMPTY;
}
@Override
public boolean isApplicable(String username, String password) {
return username != null && username.length() > 0 && password != null && password.length() > 0;
}
}