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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.IdentityModel
{
using System.IdentityModel.Diagnostics;
using System.IdentityModel.Selectors;
using System.IdentityModel.Tokens;
using System.Xml;
internal class KeyInfo
{
SecurityTokenSerializer _keyInfoSerializer;
SecurityKeyIdentifier _ski;
string _retrieval;
public KeyInfo( SecurityTokenSerializer keyInfoSerializer )
{
_keyInfoSerializer = keyInfoSerializer;
_ski = new SecurityKeyIdentifier();
}
public string RetrievalMethod
{
get { return _retrieval; }
}
public SecurityKeyIdentifier KeyIdentifier
{
get { return _ski; }
set
{
if ( value == null )
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull( "value" );
}
_ski = value;
}
}
public virtual void ReadXml( XmlDictionaryReader reader )
{
if ( reader == null )
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull( "reader" );
}
reader.MoveToContent();
if ( reader.IsStartElement( XD.XmlSignatureDictionary.KeyInfo.Value, XD.XmlSignatureDictionary.Namespace.Value ) )
{
// <KeyInfo>
reader.ReadStartElement();
while ( reader.IsStartElement() )
{
// <RetrievalMethod>
if ( reader.IsStartElement( XmlSignatureConstants.Elements.RetrievalMethod, XD.XmlSignatureDictionary.Namespace.Value ) )
{
string method = reader.GetAttribute( XD.XmlSignatureDictionary.URI.Value );
if ( !string.IsNullOrEmpty( method ) )
{
_retrieval = method;
}
reader.Skip();
}
// check if internal serializer can handle clause
else if ( _keyInfoSerializer.CanReadKeyIdentifierClause( reader ) )
{
_ski.Add( _keyInfoSerializer.ReadKeyIdentifierClause( reader ) );
}
// trace we skipped over an element
else if ( reader.IsStartElement() )
{
string xml = reader.ReadOuterXml();
if ( DiagnosticUtility.ShouldTraceWarning )
{
TraceUtility.TraceString( System.Diagnostics.TraceEventType.Warning, SR.GetString( SR.ID8023, reader.Name, reader.NamespaceURI, xml ) );
}
}
reader.MoveToContent();
}
reader.MoveToContent();
reader.ReadEndElement();
}
}
}
}
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