Code:
/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / ComIntegration / ComPlusInstanceProvider.cs / 1 / ComPlusInstanceProvider.cs
//------------------------------------------------------------------------------ // Copyright (c) Microsoft Corporation. All rights reserved. //----------------------------------------------------------------------------- namespace System.ServiceModel.ComIntegration { using System; using System.ServiceModel.Channels; using System.ServiceModel.Dispatcher; using System.Diagnostics; using System.EnterpriseServices; using System.Runtime.InteropServices; using System.IdentityModel.Claims; using System.IdentityModel.Policy; using System.Security.Principal; using System.ServiceModel; using System.ServiceModel.Diagnostics; using SafeCloseHandle = System.IdentityModel.SafeCloseHandle; class ComPlusInstanceProvider : IInstanceProvider { ServiceInfo info; static readonly Guid IID_IUnknown = new Guid("00000000-0000-0000-C000-000000000046"); public ComPlusInstanceProvider(ServiceInfo info) { this.info = info; } public object GetInstance(InstanceContext instanceContext) { throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.ComPlusInstanceProviderRequiresMessage0))); } public object GetInstance(InstanceContext instanceContext, Message message) { object result = null; Guid incomingTransactionID = Guid.Empty; if (ContextUtil.IsInTransaction) incomingTransactionID = ContextUtil.TransactionId; ComPlusInstanceCreationTrace.Trace(TraceEventType.Verbose, TraceCode.ComIntegrationInstanceCreationRequest, SR.TraceCodeComIntegrationInstanceCreationRequest, this.info, message, incomingTransactionID); WindowsIdentity callerIdentity = null; callerIdentity = MessageUtil.GetMessageIdentity(message); WindowsImpersonationContext impersonateContext = null; try { try { if (this.info.HostingMode == HostingMode.WebHostOutOfProcess) { if (SecurityUtils.IsAtleastImpersonationToken(new SafeCloseHandle(callerIdentity.Token, false))) impersonateContext = callerIdentity.Impersonate(); else throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new COMException (SR.GetString(SR.BadImpersonationLevelForOutOfProcWas), HR.ERROR_BAD_IMPERSONATION_LEVEL)); } CLSCTX clsctx = CLSCTX.SERVER; if (PlatformSupportsBitness && (this.info.HostingMode == HostingMode.WebHostOutOfProcess)) { if (this.info.Bitness == Bitness.Bitness32) { clsctx |= CLSCTX.ACTIVATE_32_BIT_SERVER; } else { clsctx |= CLSCTX.ACTIVATE_64_BIT_SERVER; } } result = SafeNativeMethods.CoCreateInstance( info.Clsid, null, clsctx, IID_IUnknown); } finally { if (impersonateContext != null) impersonateContext.Undo(); } } catch (Exception e) { if (DiagnosticUtility.IsFatal(e)) throw; Uri from = null; if (message.Headers.From != null) from = message.Headers.From.Uri; DiagnosticUtility.EventLog.LogEvent(TraceEventType.Error, EventLogCategory.ComPlus, EventLogEventId.ComPlusInstanceCreationError, from == null ? string.Empty : from.ToString(), this.info.AppID.ToString(), this.info.Clsid.ToString(), incomingTransactionID.ToString(), callerIdentity.Name, e.ToString()); throw TraceUtility.ThrowHelperError(e, message); } TransactionProxy proxy = instanceContext.Extensions.Find(); if (proxy != null) { proxy.InstanceID = result.GetHashCode(); } ComPlusInstanceCreationTrace.Trace(TraceEventType.Verbose, TraceCode.ComIntegrationInstanceCreationSuccess, SR.TraceCodeComIntegrationInstanceCreationSuccess, this.info, message, result.GetHashCode(), incomingTransactionID); return result; } public void ReleaseInstance(InstanceContext instanceContext, object instance) { int instanceID = instance.GetHashCode(); IDisposable disposable = instance as IDisposable; if (disposable != null) { disposable.Dispose(); } else { // All ServicedComponents are disposable, so we don't // have to worry about getting a ServicedComponent // here. // Marshal.ReleaseComObject(instance); } ComPlusInstanceCreationTrace.Trace(TraceEventType.Verbose, TraceCode.ComIntegrationInstanceReleased, SR.TraceCodeComIntegrationInstanceReleased, this.info, instanceContext, instanceID); } static bool platformSupportsBitness; static bool platformSupportsBitnessSet; static bool PlatformSupportsBitness { get { if (!platformSupportsBitnessSet) { // Bitness is supported on Windows 2003 Server SP1 or // greater. // if (Environment.OSVersion.Version.Major > 5) platformSupportsBitness = true; else if (Environment.OSVersion.Version.Major == 5) { if (Environment.OSVersion.Version.Minor > 2) platformSupportsBitness = true; else if (Environment.OSVersion.Version.Minor == 2) { if (!string.IsNullOrEmpty(Environment.OSVersion.ServicePack)) platformSupportsBitness = true; } } platformSupportsBitnessSet = true; } return platformSupportsBitness; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- InputGestureCollection.cs
- Interlocked.cs
- Point4D.cs
- GenerateDerivedKeyRequest.cs
- MSG.cs
- CachedPathData.cs
- ItemCheckEvent.cs
- GPPOINT.cs
- ImageDesigner.cs
- WebBrowserContainer.cs
- DesignerTextBoxAdapter.cs
- XmlDataLoader.cs
- Helper.cs
- ICollection.cs
- IPAddress.cs
- SQLSingle.cs
- WebUtility.cs
- ModelItem.cs
- HandoffBehavior.cs
- ToolStripItem.cs
- ValidationHelper.cs
- TimeSpanMinutesConverter.cs
- HyperLinkStyle.cs
- AppDomainManager.cs
- Range.cs
- unitconverter.cs
- CodeDirectiveCollection.cs
- PointCollection.cs
- DefaultAutoFieldGenerator.cs
- AnimationClock.cs
- ControlPaint.cs
- RouteData.cs
- DataGridViewTextBoxEditingControl.cs
- SupportingTokenAuthenticatorSpecification.cs
- DataGridViewSelectedCellsAccessibleObject.cs
- WaveHeader.cs
- RegisteredExpandoAttribute.cs
- NavigationProperty.cs
- GridViewUpdatedEventArgs.cs
- StringFunctions.cs
- sapiproxy.cs
- DrawingContextWalker.cs
- SQLByte.cs
- FixedTextView.cs
- MimeTypeAttribute.cs
- TreeViewEvent.cs
- ComponentChangingEvent.cs
- GlyphRunDrawing.cs
- DataGridViewRowHeightInfoNeededEventArgs.cs
- ChildTable.cs
- AddInAttribute.cs
- MessagePartDescriptionCollection.cs
- assertwrapper.cs
- XslException.cs
- XmlQualifiedName.cs
- ScriptIgnoreAttribute.cs
- SynchronizedMessageSource.cs
- TextModifier.cs
- ExternalDataExchangeService.cs
- Span.cs
- EntityDataSourceQueryBuilder.cs
- CreateParams.cs
- CodeAttributeArgumentCollection.cs
- ChannelManagerService.cs
- XmlSchemaChoice.cs
- ContextConfiguration.cs
- EnumerableRowCollectionExtensions.cs
- ClientUriBehavior.cs
- WebControl.cs
- ListMarkerSourceInfo.cs
- ImageMapEventArgs.cs
- ToolZoneDesigner.cs
- Thickness.cs
- WindowsSolidBrush.cs
- TextReader.cs
- InkCanvas.cs
- PersistChildrenAttribute.cs
- UpdatePanelTriggerCollection.cs
- Int64Animation.cs
- PointValueSerializer.cs
- TextTreeNode.cs
- XsdDataContractImporter.cs
- FacetEnabledSchemaElement.cs
- AudioException.cs
- CommandField.cs
- DataServiceHostWrapper.cs
- ClientConfigPaths.cs
- PassportAuthentication.cs
- XmlDataLoader.cs
- DesignerToolStripControlHost.cs
- COAUTHIDENTITY.cs
- ParentQuery.cs
- TraversalRequest.cs
- TraceData.cs
- NativeConfigurationLoader.cs
- RoutedEventConverter.cs
- DataRowCollection.cs
- Sql8ExpressionRewriter.cs
- ContextProperty.cs
- IgnoreFileBuildProvider.cs