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
|
/*
*
* 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.
*
*/
using System;
using System.Collections;
using Apache.Qpid.Sasl.Mechanisms;
namespace Apache.Qpid.Sasl
{
public class DefaultClientFactory : ISaslClientFactory
{
private static readonly string[] SUPPORTED = new string[] {
DigestSaslClient.Mechanism,
CramMD5SaslClient.Mechanism,
CramMD5HexSaslClient.Mechanism,
PlainSaslClient.Mechanism,
AnonymousSaslClient.Mechanism,
ExternalSaslClient.Mechanism,
};
public string[] GetSupportedMechanisms(IDictionary props)
{
if ( props == null )
throw new ArgumentNullException("props");
ArrayList vetoed = new ArrayList();
if ( props.Contains(SaslProperties.PolicyNoPlainText) ||
props.Contains(SaslProperties.PolicyNoDictionary) ||
props.Contains(SaslProperties.PolicyNoActive) ||
props.Contains(SaslProperties.PolicyForwardSecrecy) ||
props.Contains(SaslProperties.PolicyPassCredentials) )
{
vetoed.Add(CramMD5SaslClient.Mechanism);
vetoed.Add(CramMD5HexSaslClient.Mechanism);
vetoed.Add(PlainSaslClient.Mechanism);
vetoed.Add(AnonymousSaslClient.Mechanism);
vetoed.Add(ExternalSaslClient.Mechanism);
}
if ( props.Contains(SaslProperties.PolicyNoAnonymous) )
{
vetoed.Add(AnonymousSaslClient.Mechanism);
}
ArrayList available = new ArrayList();
foreach ( string mech in SUPPORTED )
{
if ( !vetoed.Contains(mech) )
available.Add(mech);
}
return (string[])available.ToArray(typeof(string));
}
public ISaslClient CreateClient(
string[] mechanisms, string authorizationId,
string protocol, string serverName,
IDictionary props, ISaslCallbackHandler handler
)
{
IList mechs = mechanisms;
if ( mechs.Contains(ExternalSaslClient.Mechanism) )
return new ExternalSaslClient(authorizationId, props, handler);
if ( mechs.Contains(DigestSaslClient.Mechanism) )
return new DigestSaslClient(authorizationId, serverName, protocol, props, handler);
if ( mechs.Contains(CramMD5SaslClient.Mechanism) )
return new CramMD5SaslClient(authorizationId, props, handler);
if ( mechs.Contains(CramMD5HexSaslClient.Mechanism) )
return new CramMD5HexSaslClient(authorizationId, props, handler);
if ( mechs.Contains(PlainSaslClient.Mechanism) )
return new PlainSaslClient(authorizationId, props, handler);
if ( mechs.Contains(AnonymousSaslClient.Mechanism) )
return new AnonymousSaslClient(authorizationId, props, handler);
// unknown mechanism
return null;
}
} // class DefaultClientFactory
} // namespace Apache.Qpid.Sasl
|
