MsmqVerifier.cs source code in C# .NET

                        Code:
                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Channels / MsmqVerifier.cs / 1 / MsmqVerifier.cs
                        
                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------
namespace System.ServiceModel.Channels
{ 
    using System;
    using System.Runtime.CompilerServices; 
    using System.Net.Security; 
    using System.ServiceModel;
 
    internal static class MsmqVerifier
    {
        internal static void VerifySender(MsmqChannelFactoryBase factory)
        { 
            // no assurances if messages are volatile
            if (!factory.Durable && factory.ExactlyOnce) 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqNoAssurancesForVolatile))); 

            MsmqChannelFactory transportFactory = factory as MsmqChannelFactory; 
            if (null != transportFactory && transportFactory.UseActiveDirectory && QueueTransferProtocol.Native != transportFactory.QueueTransferProtocol)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqActiveDirectoryRequiresNativeTransfer)));

            bool? useActiveDirectory = null; 
            if (null != transportFactory)
                useActiveDirectory = transportFactory.UseActiveDirectory; 
            VerifySecurity(factory.MsmqTransportSecurity, useActiveDirectory); 

            if (null != factory.CustomDeadLetterQueue) 
            {
                if (DeadLetterQueue.Custom != factory.DeadLetterQueue)
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqPerAppDLQRequiresCustom))); 
                }
 
                if (! Msmq.IsPerAppDeadLetterQueueSupported) 
                {
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqPerAppDLQRequiresMsmq4))); 
                }

                if (! factory.ExactlyOnce)
                { 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqPerAppDLQRequiresExactlyOnce)));
                } 
 
                string dlqFormatName = MsmqUri.NetMsmqAddressTranslator.UriToFormatName(factory.CustomDeadLetterQueue);
 
                if (! MsmqQueue.IsWriteable(dlqFormatName))
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqDLQNotWriteable)));

                bool isQueueTx; 
                if (! MsmqQueue.TryGetIsTransactional(dlqFormatName, out isQueueTx) || ! isQueueTx)
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqTransactedDLQExpected))); 
            } 

            if (null == factory.CustomDeadLetterQueue && DeadLetterQueue.Custom == factory.DeadLetterQueue) 
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqCustomRequiresPerAppDLQ)));
            }
 
            // token provider needed if Certificate mode requested
            if (MsmqAuthenticationMode.Certificate == factory.MsmqTransportSecurity.MsmqAuthenticationMode) 
                EnsureSecurityTokenManagerPresent(factory); 
        }
 
        internal static void VerifyReceiver(MsmqReceiveParameters receiveParameters, Uri listenUri)
        {
            if (!receiveParameters.Durable && receiveParameters.ExactlyOnce)
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqNoAssurancesForVolatile)));
            } 
 
            VerifySecurity(receiveParameters.TransportSecurity, null);
 
            string formatName = receiveParameters.AddressTranslator.UriToFormatName(listenUri);

            // check if can open the queue for read
            MsmqException msmqException; 
            if (! MsmqQueue.IsReadable(formatName, out msmqException))
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqQueueNotReadable), msmqException)); 
            }
 
            // check if the queue is transactional
            bool knownTxStatus = false;
            bool isQueueTx;
            knownTxStatus = MsmqQueue.TryGetIsTransactional(formatName, out isQueueTx); 
            try
            { 
                if (!knownTxStatus && (receiveParameters is MsmqTransportReceiveParameters)) 
                    knownTxStatus = MsmqQueue.TryGetIsTransactional(MsmqUri.ActiveDirectoryAddressTranslator.UriToFormatName(listenUri), out isQueueTx);
            } 
            catch (MsmqException ex) // active directory lookup may cause exceptions for certain scenarios
            {
                MsmqDiagnostics.ExpectedException(ex);
            } 
            if (knownTxStatus)
            { 
                if (!receiveParameters.ExactlyOnce && isQueueTx) 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqNonTransactionalQueueNeeded)));
                if (receiveParameters.ExactlyOnce && !isQueueTx) 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqTransactionalQueueNeeded)));
            }

            // check poison handling settings 
            if (receiveParameters.ExactlyOnce)
            { 
                if (Msmq.IsAdvancedPoisonHandlingSupported) // msmq 4 
                {
                    if (formatName.Contains(";")) 
                    {
                        // no retry queues for subqueues
                        if (ReceiveErrorHandling.Move == receiveParameters.ReceiveErrorHandling)
                            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqNoMoveForSubqueues))); 
                    }
                    else 
                    { 
                        // should be able to open the retry queue for move
                        if (! MsmqQueue.IsMoveable(formatName + ";retry")) 
                            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqDirectFormatNameRequiredForPoison)));
                    }
                }
                else 
                {
                    if (ReceiveErrorHandling.Reject == receiveParameters.ReceiveErrorHandling || ReceiveErrorHandling.Move == receiveParameters.ReceiveErrorHandling) 
                    { 
                        throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqAdvancedPoisonHandlingRequired)));
                    } 
                }
            }
        }
 
        static void VerifySecurity(MsmqTransportSecurity security, bool? useActiveDirectory)
        { 
            if (security.MsmqAuthenticationMode == MsmqAuthenticationMode.WindowsDomain && ! Msmq.ActiveDirectoryEnabled) 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqWindowsAuthnRequiresAD)));
 
            // MsmqAuthenticationMode.None implies MsmqProtectionLevel.None
            if (security.MsmqAuthenticationMode == MsmqAuthenticationMode.None && security.MsmqProtectionLevel != ProtectionLevel.None)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqAuthNoneRequiresProtectionNone)));
 
            // MsmqAuthenticationMode.Certificate implies MsmqProtectionLevel.Sign or MsmqProtectionLevel.SignAndEncrypt
            if (security.MsmqAuthenticationMode == MsmqAuthenticationMode.Certificate && security.MsmqProtectionLevel == ProtectionLevel.None) 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqAuthCertificateRequiresProtectionSign))); 

            // MsmqAuthenticationMode.WindowsDomain doesn't allow MsmqProtectionLevel.None 
            if (security.MsmqAuthenticationMode == MsmqAuthenticationMode.WindowsDomain)
            {
                if (security.MsmqProtectionLevel == ProtectionLevel.None)
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqAuthWindowsRequiresProtectionNotNone))); 
            }
 
            // public queues (thus: AD) needed for encryption 
            if (security.MsmqProtectionLevel == ProtectionLevel.EncryptAndSign && useActiveDirectory.HasValue && !useActiveDirectory.Value)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqEncryptRequiresUseAD))); 
        }

        [MethodImpl(MethodImplOptions.NoInlining)]
        static void EnsureSecurityTokenManagerPresent(MsmqChannelFactoryBase factory) 
        {
            if (null == factory.SecurityTokenManager) 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.MsmqTokenProviderNeededForCertificates))); 
        }
    } 
}

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

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