SessionSymmetricMessageSecurityProtocolFactory.cs source code in C# .NET

                        Code:
                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Security / SessionSymmetricMessageSecurityProtocolFactory.cs / 1 / SessionSymmetricMessageSecurityProtocolFactory.cs
                        
                        
                            //---------------------------------------------------------- 
// 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(); 
            }
            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()); 
        }
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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SessionSymmetricMessageSecurityProtocolFactory.cs source code in C# .NET

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