1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/*
*
* 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.server.security.auth.sasl.amqplain;
import java.io.IOException;
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.auth.callback.UnsupportedCallbackException;
import javax.security.sasl.AuthorizeCallback;
import javax.security.sasl.SaslException;
import javax.security.sasl.SaslServer;
import org.apache.mina.common.ByteBuffer;
import org.apache.qpid.framing.AMQFrameDecodingException;
import org.apache.qpid.framing.FieldTable;
import org.apache.qpid.framing.FieldTableFactory;
public class AmqPlainSaslServer implements SaslServer
{
public static final String MECHANISM = "AMQPLAIN";
private CallbackHandler _cbh;
private String _authorizationId;
private boolean _complete = false;
public AmqPlainSaslServer(CallbackHandler cbh)
{
_cbh = cbh;
}
public String getMechanismName()
{
return MECHANISM;
}
public byte[] evaluateResponse(byte[] response) throws SaslException
{
try
{
final FieldTable ft = FieldTableFactory.newFieldTable(ByteBuffer.wrap(response), response.length);
String username = (String) ft.getString("LOGIN");
// we do not care about the prompt but it throws if null
NameCallback nameCb = new NameCallback("prompt", username);
// we do not care about the prompt but it throws if null
PasswordCallback passwordCb = new PasswordCallback("prompt", false);
// TODO: should not get pwd as a String but as a char array...
String pwd = (String) ft.getString("PASSWORD");
passwordCb.setPassword(pwd.toCharArray());
AuthorizeCallback authzCb = new AuthorizeCallback(username, username);
Callback[] callbacks = new Callback[]{nameCb, passwordCb, authzCb};
_cbh.handle(callbacks);
_complete = true;
if (authzCb.isAuthorized())
{
_authorizationId = authzCb.getAuthenticationID();
return null;
}
else
{
throw new SaslException("Authentication failed");
}
}
catch (AMQFrameDecodingException e)
{
throw new SaslException("Unable to decode response: " + e, e);
}
catch (IOException e)
{
throw new SaslException("Error processing data: " + e, e);
}
catch (UnsupportedCallbackException e)
{
throw new SaslException("Unable to obtain data from callback handler: " + e, e);
}
}
public boolean isComplete()
{
return _complete;
}
public String getAuthorizationID()
{
return _authorizationId;
}
public byte[] unwrap(byte[] incoming, int offset, int len) throws SaslException
{
throw new SaslException("Unsupported operation");
}
public byte[] wrap(byte[] outgoing, int offset, int len) throws SaslException
{
throw new SaslException("Unsupported operation");
}
public Object getNegotiatedProperty(String propName)
{
return null;
}
public void dispose() throws SaslException
{
_cbh = null;
}
}
|
