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//
// BootstrapContext.cs
//
// Author:
// Robert J. van der Boon (rjvdboon@gmail.com)
//
// Copyright (C) 2014 Robert J. van der Boon
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.IO;
using System.Runtime.Serialization;
using System.Text;
using System.Xml;
namespace System.IdentityModel.Tokens {
[Serializable]
public class BootstrapContext : ISerializable {
/// <summary>Gets the string that was used to initialize the context.</summary>
public string Token { get; private set; }
/// <summary>Gets the array that was used to initialize the context.</summary>
public byte [] TokenBytes { get; private set; }
/// <summary>Gets the security token that was used to initialize the context.</summary>
public SecurityToken SecurityToken { get; private set; }
/// <summary>Gets the token handler that was used to initialize the context.</summary>
public SecurityTokenHandler SecurityTokenHandler { get; private set; }
/// <summary>Initializes a new instance of the <see cref="BootstrapContext"/> class by using the specified string.</summary>
public BootstrapContext (string token)
{
if (token == null)
throw new ArgumentNullException ("token");
Token = token;
}
/// <summary>Initializes a new instance of the <see cref="BootstrapContext"/> class by using the specified array.</summary>
public BootstrapContext (byte [] token)
{
if (token == null)
throw new ArgumentNullException ("token");
TokenBytes = token;
}
/// <summary>Initializes a new instance of the <see cref="BootstrapContext"/> class by using the specified security token and token handler.</summary>
public BootstrapContext (SecurityToken token, SecurityTokenHandler tokenHandler)
{
if (token == null)
throw new ArgumentNullException ("token");
if (tokenHandler == null)
throw new ArgumentNullException ("tokenHandler");
SecurityToken = token;
SecurityTokenHandler = tokenHandler;
}
/// <summary>Initializes a new instance of the <see cref="BootstrapContext"/> class from a stream.</summary>
protected BootstrapContext (SerializationInfo info, StreamingContext context)
{
if (info == null)
throw new ArgumentNullException ("info");
char type = info.GetChar ("K");
switch (type) {
case 'S':
Token = info.GetString ("T");
break;
case 'B':
TokenBytes = (byte [])info.GetValue ("T", typeof (byte []));
break;
case 'T':
Token = Encoding.UTF8.GetString (Convert.FromBase64String (info.GetString ("T")));
break;
}
}
/// <summary>Populates the <see cref="SerializationInfo"/> with data needed to serialize the current <see cref="BootstrapContext"/> object.</summary>
public void GetObjectData (SerializationInfo info, StreamingContext context)
{
if (info == null)
throw new ArgumentNullException ("info");
if (Token != null) {
info.AddValue ("K", 'S');
info.AddValue ("T", Token);
} else if (TokenBytes != null) {
info.AddValue ("K", 'B');
info.AddValue ("T", TokenBytes);
} else if (SecurityToken != null && SecurityTokenHandler != null) {
info.AddValue ("K", 'T');
using (var ms = new MemoryStream ())
using (var streamWriter = new StreamWriter (ms, new UTF8Encoding (false)))
using (var writer = XmlWriter.Create (streamWriter, new XmlWriterSettings { OmitXmlDeclaration = true })) {
SecurityTokenHandler.WriteToken (writer, SecurityToken);
writer.Flush ();
info.AddValue ("T", Convert.ToBase64String (ms.ToArray ()));
}
}
}
}
}
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