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//----------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Security
{
using System.IdentityModel.Tokens;
using System.ServiceModel.Channels;
using System.ServiceModel;
using System.IdentityModel.Selectors;
using System.ServiceModel.Security.Tokens;
class SessionSymmetricMessageSecurityProtocolFactory : MessageSecurityProtocolFactory
{
SecurityTokenParameters securityTokenParameters;
SessionDerivedKeySecurityTokenParameters derivedKeyTokenParameters;
public SessionSymmetricMessageSecurityProtocolFactory()
: base()
{
}
public SecurityTokenParameters SecurityTokenParameters
{
get
{
return this.securityTokenParameters;
}
set
{
ThrowIfImmutable();
this.securityTokenParameters = value;
}
}
public override EndpointIdentity GetIdentityOfSelf()
{
if (this.SecurityTokenManager is IEndpointIdentityProvider)
{
SecurityTokenRequirement requirement = CreateRecipientSecurityTokenRequirement();
this.SecurityTokenParameters.InitializeSecurityTokenRequirement(requirement);
return ((IEndpointIdentityProvider)this.SecurityTokenManager).GetIdentityOfSelf(requirement);
}
else
{
return base.GetIdentityOfSelf();
}
}
protected override SecurityProtocol OnCreateSecurityProtocol(EndpointAddress target, Uri via, object listenerSecurityState, TimeSpan timeout)
{
if (this.ActAsInitiator)
{
return new InitiatorSessionSymmetricMessageSecurityProtocol(this, target, via);
}
else
{
return new AcceptorSessionSymmetricMessageSecurityProtocol(this, null);
}
}
public override void OnOpen(TimeSpan timeout)
{
if (this.SecurityTokenParameters == null)
{
OnPropertySettingsError("SecurityTokenParameters", true);
}
if (this.SecurityTokenParameters.RequireDerivedKeys)
{
this.ExpectKeyDerivation = true;
this.derivedKeyTokenParameters = new SessionDerivedKeySecurityTokenParameters(this.ActAsInitiator);
}
base.OnOpen(timeout);
}
internal SecurityTokenParameters GetTokenParameters()
{
if (this.derivedKeyTokenParameters != null)
{
return this.derivedKeyTokenParameters;
}
else
{
return this.securityTokenParameters;
}
}
}
internal class SessionDerivedKeySecurityTokenParameters : SecurityTokenParameters
{
bool actAsInitiator;
protected SessionDerivedKeySecurityTokenParameters(SessionDerivedKeySecurityTokenParameters other)
: base(other)
{
this.actAsInitiator = other.actAsInitiator;
}
public SessionDerivedKeySecurityTokenParameters(bool actAsInitiator)
: base()
{
this.actAsInitiator = actAsInitiator;
this.InclusionMode = actAsInitiator ? SecurityTokenInclusionMode.AlwaysToRecipient : SecurityTokenInclusionMode.AlwaysToInitiator;
base.RequireDerivedKeys = false;
}
internal protected override bool SupportsClientAuthentication { get { return false; } }
internal protected override bool SupportsServerAuthentication { get { return false; } }
internal protected override bool SupportsClientWindowsIdentity { get { return false; } }
internal protected override bool HasAsymmetricKey { get { return false; } }
protected override SecurityTokenParameters CloneCore()
{
return new SessionDerivedKeySecurityTokenParameters(this);
}
internal protected override SecurityKeyIdentifierClause CreateKeyIdentifierClause(SecurityToken token, SecurityTokenReferenceStyle referenceStyle)
{
if (referenceStyle == SecurityTokenReferenceStyle.Internal)
{
return token.CreateKeyIdentifierClause<LocalIdKeyIdentifierClause>();
}
else
{
return null;
}
}
internal protected override bool MatchesKeyIdentifierClause(SecurityToken token, SecurityKeyIdentifierClause keyIdentifierClause, SecurityTokenReferenceStyle referenceStyle)
{
if (referenceStyle == SecurityTokenReferenceStyle.Internal)
{
LocalIdKeyIdentifierClause localClause = keyIdentifierClause as LocalIdKeyIdentifierClause;
if (localClause == null)
{
return false;
}
else
{
return (localClause.LocalId == token.Id);
}
}
else
{
return false;
}
}
protected internal override void InitializeSecurityTokenRequirement(SecurityTokenRequirement requirement)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException());
}
}
}
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