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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.IdentityModel.Tokens
{
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Security.Cryptography.X509Certificates;
public class X509SecurityToken : SecurityToken, IDisposable
{
string id;
X509Certificate2 certificate;
ReadOnlyCollection<SecurityKey> securityKeys;
DateTime effectiveTime = SecurityUtils.MaxUtcDateTime;
DateTime expirationTime = SecurityUtils.MinUtcDateTime;
bool disposed = false;
bool disposable;
public X509SecurityToken(X509Certificate2 certificate)
: this(certificate, SecurityUniqueId.Create().Value)
{
}
public X509SecurityToken(X509Certificate2 certificate, string id)
: this(certificate, id, true)
{
}
internal X509SecurityToken(X509Certificate2 certificate, bool clone)
: this(certificate, SecurityUniqueId.Create().Value, clone)
{
}
internal X509SecurityToken(X509Certificate2 certificate, bool clone, bool disposable)
: this(certificate, SecurityUniqueId.Create().Value, clone, disposable)
{
}
internal X509SecurityToken(X509Certificate2 certificate, string id, bool clone)
: this(certificate, id, clone, true)
{
}
internal X509SecurityToken(X509Certificate2 certificate, string id, bool clone, bool disposable)
{
if (certificate == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("certificate");
if (id == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("id");
this.id = id;
this.certificate = clone ? new X509Certificate2(certificate) : certificate;
// if the cert needs to be cloned then the token owns the clone and should dispose it
this.disposable = clone || disposable;
}
public override string Id
{
get { return this.id; }
}
public override ReadOnlyCollection<SecurityKey> SecurityKeys
{
get
{
ThrowIfDisposed();
if (this.securityKeys == null)
{
List<SecurityKey> temp = new List<SecurityKey>(1);
temp.Add(new X509AsymmetricSecurityKey(this.certificate));
this.securityKeys = temp.AsReadOnly();
}
return this.securityKeys;
}
}
public override DateTime ValidFrom
{
get
{
ThrowIfDisposed();
if (this.effectiveTime == SecurityUtils.MaxUtcDateTime)
this.effectiveTime = this.certificate.NotBefore.ToUniversalTime();
return this.effectiveTime;
}
}
public override DateTime ValidTo
{
get
{
ThrowIfDisposed();
if (this.expirationTime == SecurityUtils.MinUtcDateTime)
this.expirationTime = this.certificate.NotAfter.ToUniversalTime();
return this.expirationTime;
}
}
public X509Certificate2 Certificate
{
get
{
ThrowIfDisposed();
return this.certificate;
}
}
public override bool CanCreateKeyIdentifierClause<T>()
{
ThrowIfDisposed();
if (typeof(T) == typeof(X509SubjectKeyIdentifierClause))
return X509SubjectKeyIdentifierClause.CanCreateFrom(certificate);
return typeof(T) == typeof(X509ThumbprintKeyIdentifierClause) ||
typeof(T) == typeof(X509IssuerSerialKeyIdentifierClause) ||
typeof(T) == typeof(X509RawDataKeyIdentifierClause) ||
base.CanCreateKeyIdentifierClause<T>();
}
public override T CreateKeyIdentifierClause<T>()
{
ThrowIfDisposed();
if (typeof(T) == typeof(X509SubjectKeyIdentifierClause))
{
X509SubjectKeyIdentifierClause x509KeyIdentifierClause;
if (X509SubjectKeyIdentifierClause.TryCreateFrom(certificate, out x509KeyIdentifierClause))
return x509KeyIdentifierClause as T;
}
else if (typeof(T) == typeof(X509ThumbprintKeyIdentifierClause))
{
return new X509ThumbprintKeyIdentifierClause(certificate) as T;
}
else if (typeof(T) == typeof(X509IssuerSerialKeyIdentifierClause))
{
return new X509IssuerSerialKeyIdentifierClause(certificate) as T;
}
else if (typeof(T) == typeof(X509RawDataKeyIdentifierClause))
{
return new X509RawDataKeyIdentifierClause(certificate) as T;
}
return base.CreateKeyIdentifierClause<T>();
}
public override bool MatchesKeyIdentifierClause(SecurityKeyIdentifierClause keyIdentifierClause)
{
ThrowIfDisposed();
X509SubjectKeyIdentifierClause subjectKeyIdentifierClause = keyIdentifierClause as X509SubjectKeyIdentifierClause;
if (subjectKeyIdentifierClause != null)
return subjectKeyIdentifierClause.Matches(certificate);
X509ThumbprintKeyIdentifierClause thumbprintKeyIdentifierClause = keyIdentifierClause as X509ThumbprintKeyIdentifierClause;
if (thumbprintKeyIdentifierClause != null)
return thumbprintKeyIdentifierClause.Matches(certificate);
X509IssuerSerialKeyIdentifierClause issuerKeyIdentifierClause = keyIdentifierClause as X509IssuerSerialKeyIdentifierClause;
if (issuerKeyIdentifierClause != null)
return issuerKeyIdentifierClause.Matches(certificate);
X509RawDataKeyIdentifierClause rawCertKeyIdentifierClause = keyIdentifierClause as X509RawDataKeyIdentifierClause;
if (rawCertKeyIdentifierClause != null)
return rawCertKeyIdentifierClause.Matches(certificate);
return base.MatchesKeyIdentifierClause(keyIdentifierClause);
}
public virtual void Dispose()
{
if (this.disposable && !this.disposed)
{
this.disposed = true;
this.certificate.Reset();
}
}
protected void ThrowIfDisposed()
{
if (this.disposed)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ObjectDisposedException(this.GetType().FullName));
}
}
}
}
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