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/*
*
* Copyright (c) 2006 The Apache Software Foundation
*
* Licensed 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.server.handler;
import org.apache.log4j.Logger;
import org.apache.commons.configuration.Configuration;
import org.apache.qpid.AMQException;
import org.apache.qpid.framing.AMQFrame;
import org.apache.qpid.framing.ConnectionSecureBody;
import org.apache.qpid.framing.ConnectionStartOkBody;
import org.apache.qpid.framing.ConnectionTuneBody;
import org.apache.qpid.server.exchange.ExchangeRegistry;
import org.apache.qpid.server.protocol.AMQMethodEvent;
import org.apache.qpid.server.protocol.AMQProtocolSession;
import org.apache.qpid.server.protocol.HeartbeatConfig;
import org.apache.qpid.server.queue.QueueRegistry;
import org.apache.qpid.server.registry.ApplicationRegistry;
import org.apache.qpid.server.security.auth.AuthenticationManager;
import org.apache.qpid.server.security.auth.AuthenticationResult;
import org.apache.qpid.server.state.AMQState;
import org.apache.qpid.server.state.AMQStateManager;
import org.apache.qpid.server.state.StateAwareMethodListener;
import javax.security.sasl.SaslException;
import javax.security.sasl.SaslServer;
public class ConnectionStartOkMethodHandler implements StateAwareMethodListener<ConnectionStartOkBody>
{
private static final Logger _logger = Logger.getLogger(ConnectionStartOkMethodHandler.class);
private static ConnectionStartOkMethodHandler _instance = new ConnectionStartOkMethodHandler();
private static final int DEFAULT_FRAME_SIZE = 65536;
public static StateAwareMethodListener<ConnectionStartOkBody> getInstance()
{
return _instance;
}
private ConnectionStartOkMethodHandler()
{
}
public void methodReceived(AMQStateManager stateManager, QueueRegistry queueRegistry,
ExchangeRegistry exchangeRegistry, AMQProtocolSession protocolSession,
AMQMethodEvent<ConnectionStartOkBody> evt) throws AMQException
{
final ConnectionStartOkBody body = evt.getMethod();
_logger.info("SASL Mechanism selected: " + body.mechanism);
_logger.info("Locale selected: " + body.locale);
AuthenticationManager authMgr = ApplicationRegistry.getInstance().getAuthenticationManager();
SaslServer ss = null;
try
{
ss = authMgr.createSaslServer(body.mechanism, protocolSession.getLocalFQDN());
protocolSession.setSaslServer(ss);
AuthenticationResult authResult = authMgr.authenticate(ss, body.response);
switch (authResult.status)
{
case ERROR:
throw new AMQException("Authentication failed");
case SUCCESS:
_logger.info("Connected as: " + ss.getAuthorizationID());
stateManager.changeState(AMQState.CONNECTION_NOT_TUNED);
AMQFrame tune = ConnectionTuneBody.createAMQFrame(0, Integer.MAX_VALUE, getConfiguredFrameSize(),
HeartbeatConfig.getInstance().getDelay());
protocolSession.writeFrame(tune);
break;
case CONTINUE:
stateManager.changeState(AMQState.CONNECTION_NOT_AUTH);
AMQFrame challenge = ConnectionSecureBody.createAMQFrame(0, authResult.challenge);
protocolSession.writeFrame(challenge);
}
}
catch (SaslException e)
{
disposeSaslServer(protocolSession);
throw new AMQException("SASL error: " + e, e);
}
}
private void disposeSaslServer(AMQProtocolSession ps)
{
SaslServer ss = ps.getSaslServer();
if (ss != null)
{
ps.setSaslServer(null);
try
{
ss.dispose();
}
catch (SaslException e)
{
_logger.error("Error disposing of Sasl server: " + e);
}
}
}
static int getConfiguredFrameSize()
{
final Configuration config = ApplicationRegistry.getInstance().getConfiguration();
final int framesize = config.getInt("advanced.framesize", DEFAULT_FRAME_SIZE);
_logger.info("Framesize set to " + framesize);
return framesize;
}
}
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