/* | |
* | |
* 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, | |
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(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(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 | |