NegotiationTokenProvider.cs source code in C# .NET

                        Code:
                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Security / NegotiationTokenProvider.cs / 1 / NegotiationTokenProvider.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------
namespace System.ServiceModel.Security
{ 
    using System.IdentityModel.Claims;
    using System.ServiceModel; 
    using System.ServiceModel.Description; 
    using System.ServiceModel.Dispatcher;
    using System.IdentityModel.Policy; 
    using System.ServiceModel.Security.Tokens;
    using System.Security.Principal;
    using System.Security.Cryptography.X509Certificates;
    using System.Collections.Generic; 
    using System.ServiceModel.Channels;
    using System.Net; 
    using System.Globalization; 
    using System.Diagnostics;
    using System.Runtime.InteropServices; 
    using System.Runtime.Serialization;
    using System.ServiceModel.Diagnostics;
    using System.Xml;
 

    /* 
     * This is the base class for all token providers that negotiate an SCT from 
     * the target service.
     */ 
    abstract class NegotiationTokenProvider : IssuanceTokenProviderBase
        where T : IssuanceTokenProviderState
    {
        IChannelFactory rstChannelFactory; 
        bool requiresManualReplyAddressing;
        BindingContext issuanceBindingContext; 
        MessageVersion messageVersion; 

        protected NegotiationTokenProvider() 
            : base()
        {
        }
 
        public BindingContext IssuerBindingContext
        { 
            get { return this.issuanceBindingContext; } 
            set
            { 
                this.CommunicationObject.ThrowIfDisposedOrImmutable();
                if (value == null)
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("value"); 
                }
                this.issuanceBindingContext = value.Clone(); 
            } 
        }
 
        public override XmlDictionaryString RequestSecurityTokenAction
        {
            get
            { 
                return this.StandardsManager.TrustDriver.RequestSecurityTokenAction;
            } 
        } 

        public override XmlDictionaryString RequestSecurityTokenResponseAction 
        {
            get
            {
                return this.StandardsManager.TrustDriver.RequestSecurityTokenResponseAction; 
            }
        } 
 
        protected override MessageVersion MessageVersion
        { 
            get
            {
                return this.messageVersion;
            } 
        }
 
        protected override bool RequiresManualReplyAddressing 
        {
            get 
            {
                ThrowIfCreated();
                return this.requiresManualReplyAddressing;
            } 
        }
 
        public override void OnClose(TimeSpan timeout) 
        {
            TimeoutHelper timeoutHelper = new TimeoutHelper(timeout); 
            if (this.rstChannelFactory != null)
            {
                this.rstChannelFactory.Close(timeout);
                this.rstChannelFactory = null; 
            }
            base.OnClose(timeoutHelper.RemainingTime()); 
        } 

        public override void OnAbort() 
        {
            if (this.rstChannelFactory != null)
            {
                this.rstChannelFactory.Abort(); 
                this.rstChannelFactory = null;
            } 
            base.OnAbort(); 
        }
 
        public override void OnOpen(TimeSpan timeout)
        {
            if (this.IssuerBindingContext == null)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.IssuerBuildContextNotSet, this.GetType())));
            } 
            TimeoutHelper timeoutHelper = new TimeoutHelper(timeout); 
            this.SetupRstChannelFactory();
            this.rstChannelFactory.Open(timeout); 
            base.OnOpen(timeoutHelper.RemainingTime());
        }

        protected abstract IChannelFactory GetNegotiationChannelFactory(IChannelFactory transportChannelFactory, ChannelBuilder channelBuilder); 

        void SetupRstChannelFactory() 
        { 
            IChannelFactory innerChannelFactory = null;
            ChannelBuilder channelBuilder = new ChannelBuilder(this.IssuerBindingContext.Clone(), true); 
            // if the underlying transport does not support request/reply, wrap it inside
            // a service channel factory.
            if (channelBuilder.CanBuildChannelFactory())
            { 
                innerChannelFactory = channelBuilder.BuildChannelFactory();
                this.requiresManualReplyAddressing = true; 
            } 
            else
            { 
                ClientRuntime clientRuntime = new ClientRuntime("RequestSecurityTokenContract", NamingHelper.DefaultNamespace);
                clientRuntime.ValidateMustUnderstand = false;
                ServiceChannelFactory serviceChannelFactory = ServiceChannelFactory.BuildChannelFactory(channelBuilder, clientRuntime);
 
                serviceChannelFactory.ClientRuntime.UseSynchronizationContext = false;
                serviceChannelFactory.ClientRuntime.AddTransactionFlowProperties = false; 
                ClientOperation rstOperation = new ClientOperation(serviceChannelFactory.ClientRuntime, "RequestSecurityToken", this.RequestSecurityTokenAction.Value); 
                rstOperation.Formatter = MessageOperationFormatter.Instance;
                serviceChannelFactory.ClientRuntime.Operations.Add(rstOperation); 

                if (this.IsMultiLegNegotiation)
                {
                    ClientOperation rstrOperation = new ClientOperation(serviceChannelFactory.ClientRuntime, "RequestSecurityTokenResponse", this.RequestSecurityTokenResponseAction.Value); 
                    rstrOperation.Formatter = MessageOperationFormatter.Instance;
                    serviceChannelFactory.ClientRuntime.Operations.Add(rstrOperation); 
                } 
                // service channel automatically adds reply headers
                this.requiresManualReplyAddressing = false; 
                innerChannelFactory = new SecuritySessionSecurityTokenProvider.RequestChannelFactory(serviceChannelFactory);
            }

            this.rstChannelFactory = GetNegotiationChannelFactory(innerChannelFactory, channelBuilder); 
            this.messageVersion = channelBuilder.Binding.MessageVersion;
        } 
 
        // negotiation message processing overrides
        protected override bool WillInitializeChannelFactoriesCompleteSynchronously(EndpointAddress target) 
        {
            return true;
        }
 
        protected override void InitializeChannelFactories(EndpointAddress target, TimeSpan timeout)
        { 
        } 

        protected override IAsyncResult BeginInitializeChannelFactories(EndpointAddress target, TimeSpan timeout, AsyncCallback callback, object state) 
        {
            return new CompletedAsyncResult(callback, state);
        }
 
        protected override void EndInitializeChannelFactories(IAsyncResult result)
        { 
            CompletedAsyncResult.End(result); 
        }
 
        protected override IRequestChannel CreateClientChannel(EndpointAddress target, Uri via)
        {
            if (via != null)
            { 
                return this.rstChannelFactory.CreateChannel(target, via);
            } 
            else 
            {
                return this.rstChannelFactory.CreateChannel(target); 
            }
        }
    }
} 

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

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