SupportingTokenSecurityTokenResolver.cs source code in C# .NET

                        Code:
                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / TransactionBridge / Microsoft / Transactions / Wsat / Messaging / SupportingTokenSecurityTokenResolver.cs / 1 / SupportingTokenSecurityTokenResolver.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

// Defines an implementation of SecurityTokenResolver that provides per-message resolution 
// of SCTs for incoming supporting tokens
 
using System; 
using System.Collections.ObjectModel;
using System.Diagnostics; 
using System.IdentityModel.Selectors;
using System.IdentityModel.Tokens;
using System.ServiceModel;
using System.ServiceModel.Channels; 
using System.ServiceModel.Security.Tokens;
using System.ServiceModel.Transactions; 
using System.Xml; 

namespace Microsoft.Transactions.Wsat.Messaging 
{
    class SupportingTokenSecurityTokenResolver : SecurityTokenResolver, ISecurityContextSecurityTokenCache
    {
        // Note - this works because we understand our fixed binding set and we know we 
        // won't switch threads between the following two steps in receiving a message:
        // - Our SupportingTokenXXXChannel element being called 
        // - The SecurityChannel calling ISecurityContextSecurityTokenCache.GetContext 
        [ThreadStatic]
        static SecurityContextSecurityToken currentSct; 

        public bool FaultInSupportingToken(Message message)
        {
            DebugTrace.TraceEnter(this, "FaultInSupportingToken"); 

            bool found = false; 
 
            WsatRegistrationHeader header = ReadRegistrationHeader(message);
            if (header == null || 
                header.TransactionId == Guid.Empty ||
                string.IsNullOrEmpty(header.TokenId))
            {
                if (DebugTrace.Warning) 
                    DebugTrace.Trace(TraceLevel.Warning,
                                     "Invalid or absent RegisterInfo in register message"); 
            } 
            else
            { 
                currentSct = DeriveToken(header.TransactionId, header.TokenId);
                found = true;

                if (DebugTrace.Verbose) 
                    DebugTrace.Trace(TraceLevel.Verbose,
                                     "Created SCT with id {0} for transaction {1}", 
                                     header.TokenId, 
                                     header.TransactionId);
            } 

            DebugTrace.TraceLeave(this, "FaultInSupportingToken");

            return found; 
        }
 
        WsatRegistrationHeader ReadRegistrationHeader(Message message) 
        {
            WsatRegistrationHeader header = null; 
            try
            {
                header = WsatRegistrationHeader.ReadFrom(message);
            } 
            catch (InvalidEnlistmentHeaderException e)
            { 
                DiagnosticUtility.ExceptionUtility.TraceHandledException(e, TraceEventType.Error); 

                if (DebugTrace.Error) 
                    DebugTrace.Trace(TraceLevel.Error,
                                     "Invalid RegisterInfo header found in register message: {0}",
                                     e.Message);
            } 

            return header; 
        } 

        SecurityContextSecurityToken DeriveToken(Guid transactionId, string tokenId) 
        {
            byte[] derivedKey = CoordinationServiceSecurity.DeriveIssuedTokenKey(transactionId, tokenId);
            DateTime now = DateTime.UtcNow;
            return new SecurityContextSecurityToken(new UniqueId(tokenId), 
                                                    derivedKey,
                                                    now, 
                                                    now + TimeSpan.FromMinutes(5)); 
        }
 
        //
        // SecurityTokenResolver overrides
        //
 
        protected override bool TryResolveTokenCore(SecurityKeyIdentifier keyIdentifier,
                                                    out SecurityToken token) 
        { 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException());
        } 

        protected override bool TryResolveTokenCore(SecurityKeyIdentifierClause keyIdentifierClause,
                                                    out SecurityToken token)
        { 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException());
        } 
 
        protected override bool TryResolveSecurityKeyCore(SecurityKeyIdentifierClause keyIdentifierClause,
                                                          out SecurityKey key) 
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException());
        }
 
        //
        // ISecurityContextSecurityTokenCache implementation 
 
        public void AddContext(SecurityContextSecurityToken token)
        { 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException());
        }

        public void ClearContexts() 
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException()); 
        } 

        public Collection GetAllContexts(UniqueId contextId) 
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException());
        }
 
        public SecurityContextSecurityToken GetContext(UniqueId contextId, UniqueId generation)
        { 
            DebugTrace.TraceEnter(this, "GetContext"); 

            SecurityContextSecurityToken sct = null; 

            if (currentSct != null &&
                currentSct.ContextId == contextId &&
                currentSct.KeyGeneration == generation) 
            {
                if (DebugTrace.Verbose) 
                    DebugTrace.Trace(TraceLevel.Verbose, 
                                     "Found SCT with matching id {0}",
                                     contextId); 

                sct = currentSct;
                currentSct = null;
            } 

            DebugTrace.TraceLeave(this, "GetContext"); 
 
            return sct;
        } 

        public void RemoveAllContexts(UniqueId contextId)
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException()); 
        }
 
        public void RemoveContext(UniqueId contextId, UniqueId generation) 
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException()); 
        }

        public bool TryAddContext(SecurityContextSecurityToken token)
        { 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException());
        } 
 
        public void UpdateContextCachingTime(SecurityContextSecurityToken context, DateTime expirationTime)
        { 
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotImplementedException());
        }
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu

Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
SupportingTokenSecurityTokenResolver.cs source code in C# .NET

Source code for the .NET framework in C#

Code:

Link Menu
