/*
*
* 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.handler;
import javax.security.sasl.SaslClient;
import javax.security.sasl.SaslException;
import org.apache.qpid.AMQException;
import org.apache.qpid.client.protocol.AMQProtocolSession;
import org.apache.qpid.client.state.AMQStateManager;
import org.apache.qpid.client.state.StateAwareMethodListener;
import org.apache.qpid.framing.AMQFrame;
import org.apache.qpid.framing.ConnectionSecureBody;
import org.apache.qpid.framing.ConnectionSecureOkBody;
import org.apache.qpid.protocol.AMQMethodEvent;
public class ConnectionSecureMethodHandler implements StateAwareMethodListener<ConnectionSecureBody>
{
private static final ConnectionSecureMethodHandler _instance = new ConnectionSecureMethodHandler();
public static ConnectionSecureMethodHandler getInstance()
{
return _instance;
}
public void methodReceived(AMQStateManager stateManager, ConnectionSecureBody body, int channelId)
throws AMQException
{
final AMQProtocolSession session = stateManager.getProtocolSession();
SaslClient client = session.getSaslClient();
if (client == null)
{
throw new AMQException("No SASL client set up - cannot proceed with authentication");
}
try
{
// Evaluate server challenge
byte[] response = client.evaluateChallenge(body.getChallenge());
ConnectionSecureOkBody secureOkBody = session.getMethodRegistry().createConnectionSecureOkBody(response);
session.writeFrame(secureOkBody.generateFrame(channelId));
}
catch (SaslException e)
{
throw new AMQException("Error processing SASL challenge: " + e, e);
}
}
}