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/*
*
* 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.Text;
using System.Globalization;
using System.Security.Cryptography;
namespace Apache.Qpid.Sasl
{
/// <summary>
/// Marker interface for Sasl Callbacks
/// </summary>
public interface ISaslCallback
{
} // interface ISaslCallback
public abstract class TextSaslCallback : ISaslCallback
{
private string _prompt;
private string _text;
private string _defaultText;
public string Prompt
{
get { return _prompt; }
set { _prompt = value; }
}
public string Text
{
get {
if ( _text == null || _text.Length == 0 )
return DefaultText;
else
return _text;
}
set { _text = value; }
}
public string DefaultText
{
get { return _defaultText; }
set { _defaultText = value; }
}
protected TextSaslCallback(string prompt, string text, string defaultText)
{
_prompt = prompt;
_text = text;
_defaultText = defaultText;
}
} // class TextSaslCallback
public class NameCallback : TextSaslCallback
{
public NameCallback()
: this(Environment.UserName)
{
}
public NameCallback(string defaultText)
: base("username:", "", defaultText)
{
}
} // class NameCallback
public class PasswordCallback : TextSaslCallback
{
public PasswordCallback()
: base("password:", "", "")
{
}
public byte[] HashedText
{
get
{
string _text = this.Text;
System.Security.Cryptography.MD5CryptoServiceProvider x = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bs = x.ComputeHash(Encoding.UTF8.GetBytes(_text));
return bs;
}
}
} // class PasswordCallback
public class HashedPasswordCallback : TextSaslCallback
{
public HashedPasswordCallback()
: base("password:", "", "")
{
}
public byte[] HashedText
{
get {
string _text = this.Text;
System.Security.Cryptography.MD5CryptoServiceProvider x = new System.Security.Cryptography.MD5CryptoServiceProvider();
_text = _text.PadRight(16, '\0');
byte[] bs = x.ComputeHash(Encoding.UTF8.GetBytes(_text));
return bs;
}
}
} // class PasswordCallback
public class RealmCallback : TextSaslCallback
{
public RealmCallback()
: this("localhost")
{
}
public RealmCallback(string defaultText)
: base("realm:", "", defaultText)
{
}
} // class RealmCallback
} // namespace Apache.Qpid.Sasl
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