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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
using System.Collections.Generic;
using System.IdentityModel;
using System.IdentityModel.Selectors;
using System.IdentityModel.Tokens;
using System.ServiceModel.Security.Tokens;
using System.Xml;
namespace System.ServiceModel.Security
{
class WSKeyInfoSerializer : KeyInfoSerializer
{
static Func<KeyInfoSerializer, IEnumerable<SecurityTokenSerializer.SerializerEntries>> CreateAdditionalEntries(SecurityVersion securityVersion, SecureConversationVersion secureConversationVersion)
{
return (KeyInfoSerializer keyInfoSerializer) =>
{
List<SecurityTokenSerializer.SerializerEntries> serializerEntries = new List<SecurityTokenSerializer.SerializerEntries>();
if (securityVersion == SecurityVersion.WSSecurity10)
{
serializerEntries.Add(new System.IdentityModel.Tokens.WSSecurityJan2004(keyInfoSerializer));
}
else if (securityVersion == SecurityVersion.WSSecurity11)
{
serializerEntries.Add(new System.IdentityModel.Tokens.WSSecurityXXX2005(keyInfoSerializer));
}
else
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("securityVersion", SR.GetString(SR.MessageSecurityVersionOutOfRange)));
}
if (secureConversationVersion == SecureConversationVersion.WSSecureConversationFeb2005)
{
serializerEntries.Add(new WSSecureConversationFeb2005(keyInfoSerializer));
}
else if (secureConversationVersion == SecureConversationVersion.WSSecureConversation13)
{
serializerEntries.Add(new WSSecureConversationDec2005(keyInfoSerializer));
}
else
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
}
return serializerEntries;
};
}
public WSKeyInfoSerializer(bool emitBspRequiredAttributes, DictionaryManager dictionaryManager, System.IdentityModel.TrustDictionary trustDictionary, SecurityTokenSerializer innerSecurityTokenSerializer, SecurityVersion securityVersion, SecureConversationVersion secureConversationVersion)
: base(emitBspRequiredAttributes, dictionaryManager, trustDictionary, innerSecurityTokenSerializer, CreateAdditionalEntries(securityVersion, secureConversationVersion))
{
}
#region WSSecureConversation classes
abstract class WSSecureConversation : SecurityTokenSerializer.SerializerEntries
{
KeyInfoSerializer securityTokenSerializer;
protected WSSecureConversation( KeyInfoSerializer securityTokenSerializer )
{
this.securityTokenSerializer = securityTokenSerializer;
}
public KeyInfoSerializer SecurityTokenSerializer
{
get { return this.securityTokenSerializer; }
}
public abstract System.IdentityModel.SecureConversationDictionary SerializerDictionary
{
get;
}
public virtual string DerivationAlgorithm
{
get { return SecurityAlgorithms.Psha1KeyDerivation; }
}
public override void PopulateTokenEntries( IList<TokenEntry> tokenEntryList )
{
if ( tokenEntryList == null )
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull( "tokenEntryList" );
}
tokenEntryList.Add( new DerivedKeyTokenEntry( this ) );
tokenEntryList.Add( new SecurityContextTokenEntry( this ) );
}
protected abstract class SctStrEntry : StrEntry
{
WSSecureConversation parent;
public SctStrEntry( WSSecureConversation parent )
{
this.parent = parent;
}
protected WSSecureConversation Parent
{
get { return this.parent; }
}
public override Type GetTokenType( SecurityKeyIdentifierClause clause )
{
return null;
}
public override string GetTokenTypeUri()
{
return null;
}
public override bool CanReadClause( XmlDictionaryReader reader, string tokenType )
{
if ( tokenType != null && tokenType != parent.SerializerDictionary.SecurityContextTokenType.Value )
{
return false;
}
if ( reader.IsStartElement(
parent.SecurityTokenSerializer.DictionaryManager.SecurityJan2004Dictionary.Reference,
parent.SecurityTokenSerializer.DictionaryManager.SecurityJan2004Dictionary.Namespace ) )
{
string valueType = reader.GetAttribute( parent.SecurityTokenSerializer.DictionaryManager.SecurityJan2004Dictionary.ValueType, null );
if ( valueType != null && valueType != parent.SerializerDictionary.SecurityContextTokenReferenceValueType.Value )
{
return false;
}
string uri = reader.GetAttribute( parent.SecurityTokenSerializer.DictionaryManager.SecurityJan2004Dictionary.URI, null );
if ( uri != null )
{
if ( uri.Length > 0 && uri[0] != '#' )
{
return true;
}
}
}
return false;
}
public override SecurityKeyIdentifierClause ReadClause( XmlDictionaryReader reader, byte[] derivationNonce, int derivationLength, string tokenType )
{
System.Xml.UniqueId uri = XmlHelper.GetAttributeAsUniqueId( reader, XD.SecurityJan2004Dictionary.URI, null );
System.Xml.UniqueId generation = ReadGeneration( reader );
if ( reader.IsEmptyElement )
{
reader.Read();
}
else
{
reader.ReadStartElement();
while ( reader.IsStartElement() )
{
reader.Skip();
}
reader.ReadEndElement();
}
return new SecurityContextKeyIdentifierClause( uri, generation, derivationNonce, derivationLength );
}
protected abstract System.Xml.UniqueId ReadGeneration( XmlDictionaryReader reader );
public override bool SupportsCore( SecurityKeyIdentifierClause clause )
{
return clause is SecurityContextKeyIdentifierClause;
}
public override void WriteContent( XmlDictionaryWriter writer, SecurityKeyIdentifierClause clause )
{
SecurityContextKeyIdentifierClause sctClause = clause as SecurityContextKeyIdentifierClause;
writer.WriteStartElement( XD.SecurityJan2004Dictionary.Prefix.Value, XD.SecurityJan2004Dictionary.Reference, XD.SecurityJan2004Dictionary.Namespace );
XmlHelper.WriteAttributeStringAsUniqueId( writer, null, XD.SecurityJan2004Dictionary.URI, null, sctClause.ContextId );
WriteGeneration( writer, sctClause );
writer.WriteAttributeString( XD.SecurityJan2004Dictionary.ValueType, null, parent.SerializerDictionary.SecurityContextTokenReferenceValueType.Value );
writer.WriteEndElement();
}
protected abstract void WriteGeneration( XmlDictionaryWriter writer, SecurityContextKeyIdentifierClause clause );
}
protected class SecurityContextTokenEntry : SecurityTokenSerializer.TokenEntry
{
WSSecureConversation parent;
Type[] tokenTypes;
public SecurityContextTokenEntry( WSSecureConversation parent )
{
this.parent = parent;
}
protected WSSecureConversation Parent
{
get { return this.parent; }
}
protected override XmlDictionaryString LocalName { get { return parent.SerializerDictionary.SecurityContextToken; } }
protected override XmlDictionaryString NamespaceUri { get { return parent.SerializerDictionary.Namespace; } }
protected override Type[] GetTokenTypesCore()
{
if ( tokenTypes == null )
this.tokenTypes = new Type[] { typeof( SecurityContextSecurityToken ) };
return this.tokenTypes;
}
public override string TokenTypeUri { get { return parent.SerializerDictionary.SecurityContextTokenType.Value; } }
protected override string ValueTypeUri { get { return null; } }
}
protected class DerivedKeyTokenEntry : SecurityTokenSerializer.TokenEntry
{
public const string DefaultLabel = "WS-SecureConversation";
WSSecureConversation parent;
Type[] tokenTypes;
public DerivedKeyTokenEntry( WSSecureConversation parent )
{
if ( parent == null )
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull( "parent" );
}
this.parent = parent;
}
protected override XmlDictionaryString LocalName { get { return parent.SerializerDictionary.DerivedKeyToken; } }
protected override XmlDictionaryString NamespaceUri { get { return parent.SerializerDictionary.Namespace; } }
protected override Type[] GetTokenTypesCore()
{
if ( tokenTypes == null )
this.tokenTypes = new Type[] { typeof( DerivedKeySecurityToken ) };
return this.tokenTypes;
}
public override string TokenTypeUri { get { return parent.SerializerDictionary.DerivedKeyTokenType.Value; } }
protected override string ValueTypeUri { get { return null; } }
}
}
class WSSecureConversationFeb2005 : WSSecureConversation
{
public WSSecureConversationFeb2005( KeyInfoSerializer securityTokenSerializer )
: base( securityTokenSerializer )
{
}
public override System.IdentityModel.SecureConversationDictionary SerializerDictionary
{
get { return this.SecurityTokenSerializer.DictionaryManager.SecureConversationFeb2005Dictionary; }
}
public override void PopulateStrEntries( IList<StrEntry> strEntries )
{
strEntries.Add( new SctStrEntryFeb2005( this ) );
}
class SctStrEntryFeb2005 : SctStrEntry
{
public SctStrEntryFeb2005( WSSecureConversationFeb2005 parent )
: base( parent )
{
}
protected override System.Xml.UniqueId ReadGeneration( XmlDictionaryReader reader )
{
return XmlHelper.GetAttributeAsUniqueId(
reader,
this.Parent.SecurityTokenSerializer.DictionaryManager.SecureConversationDec2005Dictionary.Instance,
this.Parent.SecurityTokenSerializer.DictionaryManager.SecureConversationFeb2005Dictionary.Namespace );
}
protected override void WriteGeneration( XmlDictionaryWriter writer, SecurityContextKeyIdentifierClause clause )
{
// serialize the generation
if ( clause.Generation != null )
{
XmlHelper.WriteAttributeStringAsUniqueId(
writer,
this.Parent.SecurityTokenSerializer.DictionaryManager.SecureConversationFeb2005Dictionary.Prefix.Value,
this.Parent.SecurityTokenSerializer.DictionaryManager.SecureConversationDec2005Dictionary.Instance,
this.Parent.SecurityTokenSerializer.DictionaryManager.SecureConversationFeb2005Dictionary.Namespace,
clause.Generation );
}
}
}
}
class WSSecureConversationDec2005 : WSSecureConversation
{
public WSSecureConversationDec2005( KeyInfoSerializer securityTokenSerializer )
: base( securityTokenSerializer )
{
}
public override System.IdentityModel.SecureConversationDictionary SerializerDictionary
{
get { return this.SecurityTokenSerializer.DictionaryManager.SecureConversationDec2005Dictionary; }
}
public override void PopulateStrEntries( IList<StrEntry> strEntries )
{
strEntries.Add( new SctStrEntryDec2005( this ) );
}
public override string DerivationAlgorithm
{
get
{
return SecurityAlgorithms.Psha1KeyDerivationDec2005;
}
}
class SctStrEntryDec2005 : SctStrEntry
{
public SctStrEntryDec2005( WSSecureConversationDec2005 parent )
: base( parent )
{
}
protected override System.Xml.UniqueId ReadGeneration( XmlDictionaryReader reader )
{
return XmlHelper.GetAttributeAsUniqueId( reader, this.Parent.SecurityTokenSerializer.DictionaryManager.SecureConversationDec2005Dictionary.Instance,
this.Parent.SecurityTokenSerializer.DictionaryManager.SecureConversationDec2005Dictionary.Namespace );
}
protected override void WriteGeneration( XmlDictionaryWriter writer, SecurityContextKeyIdentifierClause clause )
{
// serialize the generation
if ( clause.Generation != null )
{
XmlHelper.WriteAttributeStringAsUniqueId(
writer,
this.Parent.SecurityTokenSerializer.DictionaryManager.SecureConversationDec2005Dictionary.Prefix.Value,
this.Parent.SecurityTokenSerializer.DictionaryManager.SecureConversationDec2005Dictionary.Instance,
this.Parent.SecurityTokenSerializer.DictionaryManager.SecureConversationDec2005Dictionary.Namespace,
clause.Generation );
}
}
}
}
#endregion
}
}
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