01 /*
02 *
03 * Licensed to the Apache Software Foundation (ASF) under one
04 * or more contributor license agreements. See the NOTICE file
05 * distributed with this work for additional information
06 * regarding copyright ownership. The ASF licenses this file
07 * to you under the Apache License, Version 2.0 (the
08 * "License"); you may not use this file except in compliance
09 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 */
21 package org.apache.qpid.client.handler;
22
23 import javax.security.sasl.SaslClient;
24 import javax.security.sasl.SaslException;
25
26 import org.apache.qpid.AMQException;
27 import org.apache.qpid.client.protocol.AMQProtocolSession;
28 import org.apache.qpid.client.state.StateAwareMethodListener;
29 import org.apache.qpid.framing.ConnectionSecureBody;
30 import org.apache.qpid.framing.ConnectionSecureOkBody;
31
32 public class ConnectionSecureMethodHandler implements StateAwareMethodListener<ConnectionSecureBody>
33 {
34 private static final ConnectionSecureMethodHandler _instance = new ConnectionSecureMethodHandler();
35
36 public static ConnectionSecureMethodHandler getInstance()
37 {
38 return _instance;
39 }
40
41 public void methodReceived(AMQProtocolSession session, ConnectionSecureBody body, int channelId)
42 throws AMQException
43 {
44 SaslClient client = session.getSaslClient();
45 if (client == null)
46 {
47 throw new AMQException(null, "No SASL client set up - cannot proceed with authentication", null);
48 }
49
50
51
52 try
53 {
54 // Evaluate server challenge
55 byte[] response = client.evaluateChallenge(body.getChallenge());
56
57 ConnectionSecureOkBody secureOkBody = session.getMethodRegistry().createConnectionSecureOkBody(response);
58
59 session.writeFrame(secureOkBody.generateFrame(channelId));
60 }
61 catch (SaslException e)
62 {
63 throw new AMQException(null, "Error processing SASL challenge: " + e, e);
64 }
65
66
67 }
68
69
70 }
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