| /* |
| * |
| * 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.qpid.client.security.amqplain; |
| |
| import org.apache.qpid.framing.FieldTable; |
| import org.apache.qpid.framing.FieldTableFactory; |
| |
| import javax.security.auth.callback.Callback; |
| import javax.security.auth.callback.CallbackHandler; |
| import javax.security.auth.callback.NameCallback; |
| import javax.security.auth.callback.PasswordCallback; |
| import javax.security.sasl.SaslClient; |
| import javax.security.sasl.SaslException; |
| |
| /** |
| * Implements the "AMQPlain" authentication protocol that uses FieldTables to send username and pwd. |
| * |
| */ |
| public class AmqPlainSaslClient implements SaslClient |
| { |
| /** |
| * The name of this mechanism |
| */ |
| public static final String MECHANISM = "AMQPLAIN"; |
| |
| private CallbackHandler _cbh; |
| |
| public AmqPlainSaslClient(CallbackHandler cbh) |
| { |
| _cbh = cbh; |
| } |
| |
| public String getMechanismName() |
| { |
| return "AMQPLAIN"; |
| } |
| |
| public boolean hasInitialResponse() |
| { |
| return true; |
| } |
| |
| public byte[] evaluateChallenge(byte[] challenge) throws SaslException |
| { |
| // we do not care about the prompt or the default name |
| NameCallback nameCallback = new NameCallback("prompt", "defaultName"); |
| PasswordCallback pwdCallback = new PasswordCallback("prompt", false); |
| Callback[] callbacks = new Callback[]{nameCallback, pwdCallback}; |
| try |
| { |
| _cbh.handle(callbacks); |
| } |
| catch (Exception e) |
| { |
| throw new SaslException("Error handling SASL callbacks: " + e, e); |
| } |
| FieldTable table = FieldTableFactory.newFieldTable(); |
| table.setString("LOGIN", nameCallback.getName()); |
| table.setString("PASSWORD", new String(pwdCallback.getPassword())); |
| return table.getDataAsBytes(); |
| } |
| |
| public boolean isComplete() |
| { |
| return true; |
| } |
| |
| public byte[] unwrap(byte[] incoming, int offset, int len) throws SaslException |
| { |
| throw new SaslException("Not supported"); |
| } |
| |
| public byte[] wrap(byte[] outgoing, int offset, int len) throws SaslException |
| { |
| throw new SaslException("Not supported"); |
| } |
| |
| public Object getNegotiatedProperty(String propName) |
| { |
| return null; |
| } |
| |
| public void dispose() throws SaslException |
| { |
| _cbh = null; |
| } |
| } |