Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / wpf / src / Framework / MS / Internal / AppModel / ResourcePart.cs / 1 / ResourcePart.cs
//------------------------------------------------------------------------------ // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: // ResourcePart is an implementation of the abstract PackagePart class. It contains an override for GetStreamCore. // // History: // 10/04/2004: Erichar: Initial creation. // //----------------------------------------------------------------------------- using System; using System.IO.Packaging; using System.Windows; using System.Windows.Resources; using System.IO; using System.Resources; using System.Globalization; using System.Security; using MS.Internal.Resources; using MS.Internal; //In order to avoid generating warnings about unknown message numbers and //unknown pragmas when compiling your C# source code with the actual C# compiler, //you need to disable warnings 1634 and 1691. (Presharp Documentation) #pragma warning disable 1634, 1691 namespace MS.Internal.AppModel { ////// ResourcePart is an implementation of the abstract PackagePart class. It contains an override for GetStreamCore. /// internal class ResourcePart : System.IO.Packaging.PackagePart { //----------------------------------------------------- // // Public Constructors // //----------------------------------------------------- #region Public Constructors ////// Critical - because _rmWrapper, which is being set, is marked SecurityCriticalDataForSet. /// [SecurityCritical] public ResourcePart(Package container, Uri uri, string name, ResourceManagerWrapper rmWrapper) : base(container, uri) { if (rmWrapper == null) { throw new ArgumentNullException("rmWrapper"); } _rmWrapper.Value = rmWrapper; _name = name; } #endregion //------------------------------------------------------ // // Protected Methods // //----------------------------------------------------- #region Protected Methods ////// Critical - because creating a BamlStream is critical as it stores the assembly /// passed in to it the _assembly field, and this field is used by the /// BamlRecordReader to allow legitimate internal types in Partial Trust. /// Safe - because the _rmWrapper from which the assembly is obtained is SecurityCriticalDataForSet, /// and setting that when a ResourcePart is constructed is treated as safe by /// ResourceContainer.GetPartCore(). The _rmWrapper is trated as safe as it guarantees /// that any stream created by it is always from the assembly that it also holds on to. /// So to the BamlRecordReader, this Assembly that it uses is always guaranteed to be /// the one from which the baml stream that it reads, was created from. /// [SecurityCritical, SecurityTreatAsSafe] protected override Stream GetStreamCore(FileMode mode, FileAccess access) { Stream stream = null; stream = EnsureResourceLocationSet(); // in order to find the resource we might have to open a stream. // rather than waste the stream it is returned here and we can use it. if (stream == null) { // Start looking for resources using the current ui culture. // The resource manager will fall back to invariant culture automatically. stream = _rmWrapper.Value.GetStream(_name); if (stream == null) { throw new IOException(SR.Get(SRID.UnableToLocateResource, _name)); } } // // If this is a Baml stream, it will return BamlStream object, which contains // both raw stream and the host assembly. // ContentType curContent = new ContentType(ContentType); if (MimeTypeMapper.BamlMime.AreTypeAndSubTypeEqual(curContent)) { BamlStream bamlStream = new BamlStream(stream, _rmWrapper.Value.Assembly); stream = bamlStream; } return stream; } protected override string GetContentTypeCore() { EnsureResourceLocationSet(); return MS.Internal.MimeTypeMapper.GetMimeTypeFromUri(new Uri(_name,UriKind.RelativeOrAbsolute)).ToString(); } #endregion //------------------------------------------------------ // // Private Methods // //------------------------------------------------------ #region Private Methods private Stream EnsureResourceLocationSet() { Stream stream = null; lock (_globalLock) { // only need to do this once if (_ensureResourceIsCalled) { return null; } _ensureResourceIsCalled = true; try { // We do not allow the use of .baml in any Avalon public APIs. This is the code pass needed to go through for loading baml file. // Throw here we will catch all those cases. if (String.Compare(Path.GetExtension(_name), ResourceContainer.BamlExt, StringComparison.OrdinalIgnoreCase) == 0) { throw new IOException(SR.Get(SRID.UnableToLocateResource, _name)); } if (String.Compare(Path.GetExtension(_name), ResourceContainer.XamlExt, StringComparison.OrdinalIgnoreCase) == 0) { // try baml extension first since it's our most common senario. string newName = Path.ChangeExtension(_name, ResourceContainer.BamlExt); // Get resource from resource manager wrapper. stream = _rmWrapper.Value.GetStream(newName); if (stream != null) { // Remember that we have .baml for next time GetStreamCore is called. _name = newName; return stream; } } } #pragma warning disable 6502 // PRESharp - Catch statements should not have empty bodies catch (System.Resources.MissingManifestResourceException) { // When the main assembly doesn't contain any resource (all the resources must come from satellite assembly) // then above GetStream( ) just throws exception. We should catch this exception here and let the code continue // to try with the original file name. // If the main assembly does contain resource, but the resource with above _name does't exist, the above GetStream( ) // just returns null without exception. } #pragma warning restore 6502 } // Do not attempt to load the original file name here. If the .baml does not exist or if this resource not // .xaml or .baml then we will follow the normal code path to attempt to load the stream using the original name. return null; } #endregion //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Members private SecurityCriticalDataForSet_rmWrapper; private bool _ensureResourceIsCalled = false; private string _name; private Object _globalLock = new Object(); #endregion Private Members } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //------------------------------------------------------------------------------ // // // Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: // ResourcePart is an implementation of the abstract PackagePart class. It contains an override for GetStreamCore. // // History: // 10/04/2004: Erichar: Initial creation. // //----------------------------------------------------------------------------- using System; using System.IO.Packaging; using System.Windows; using System.Windows.Resources; using System.IO; using System.Resources; using System.Globalization; using System.Security; using MS.Internal.Resources; using MS.Internal; //In order to avoid generating warnings about unknown message numbers and //unknown pragmas when compiling your C# source code with the actual C# compiler, //you need to disable warnings 1634 and 1691. (Presharp Documentation) #pragma warning disable 1634, 1691 namespace MS.Internal.AppModel { ////// ResourcePart is an implementation of the abstract PackagePart class. It contains an override for GetStreamCore. /// internal class ResourcePart : System.IO.Packaging.PackagePart { //----------------------------------------------------- // // Public Constructors // //----------------------------------------------------- #region Public Constructors ////// Critical - because _rmWrapper, which is being set, is marked SecurityCriticalDataForSet. /// [SecurityCritical] public ResourcePart(Package container, Uri uri, string name, ResourceManagerWrapper rmWrapper) : base(container, uri) { if (rmWrapper == null) { throw new ArgumentNullException("rmWrapper"); } _rmWrapper.Value = rmWrapper; _name = name; } #endregion //------------------------------------------------------ // // Protected Methods // //----------------------------------------------------- #region Protected Methods ////// Critical - because creating a BamlStream is critical as it stores the assembly /// passed in to it the _assembly field, and this field is used by the /// BamlRecordReader to allow legitimate internal types in Partial Trust. /// Safe - because the _rmWrapper from which the assembly is obtained is SecurityCriticalDataForSet, /// and setting that when a ResourcePart is constructed is treated as safe by /// ResourceContainer.GetPartCore(). The _rmWrapper is trated as safe as it guarantees /// that any stream created by it is always from the assembly that it also holds on to. /// So to the BamlRecordReader, this Assembly that it uses is always guaranteed to be /// the one from which the baml stream that it reads, was created from. /// [SecurityCritical, SecurityTreatAsSafe] protected override Stream GetStreamCore(FileMode mode, FileAccess access) { Stream stream = null; stream = EnsureResourceLocationSet(); // in order to find the resource we might have to open a stream. // rather than waste the stream it is returned here and we can use it. if (stream == null) { // Start looking for resources using the current ui culture. // The resource manager will fall back to invariant culture automatically. stream = _rmWrapper.Value.GetStream(_name); if (stream == null) { throw new IOException(SR.Get(SRID.UnableToLocateResource, _name)); } } // // If this is a Baml stream, it will return BamlStream object, which contains // both raw stream and the host assembly. // ContentType curContent = new ContentType(ContentType); if (MimeTypeMapper.BamlMime.AreTypeAndSubTypeEqual(curContent)) { BamlStream bamlStream = new BamlStream(stream, _rmWrapper.Value.Assembly); stream = bamlStream; } return stream; } protected override string GetContentTypeCore() { EnsureResourceLocationSet(); return MS.Internal.MimeTypeMapper.GetMimeTypeFromUri(new Uri(_name,UriKind.RelativeOrAbsolute)).ToString(); } #endregion //------------------------------------------------------ // // Private Methods // //------------------------------------------------------ #region Private Methods private Stream EnsureResourceLocationSet() { Stream stream = null; lock (_globalLock) { // only need to do this once if (_ensureResourceIsCalled) { return null; } _ensureResourceIsCalled = true; try { // We do not allow the use of .baml in any Avalon public APIs. This is the code pass needed to go through for loading baml file. // Throw here we will catch all those cases. if (String.Compare(Path.GetExtension(_name), ResourceContainer.BamlExt, StringComparison.OrdinalIgnoreCase) == 0) { throw new IOException(SR.Get(SRID.UnableToLocateResource, _name)); } if (String.Compare(Path.GetExtension(_name), ResourceContainer.XamlExt, StringComparison.OrdinalIgnoreCase) == 0) { // try baml extension first since it's our most common senario. string newName = Path.ChangeExtension(_name, ResourceContainer.BamlExt); // Get resource from resource manager wrapper. stream = _rmWrapper.Value.GetStream(newName); if (stream != null) { // Remember that we have .baml for next time GetStreamCore is called. _name = newName; return stream; } } } #pragma warning disable 6502 // PRESharp - Catch statements should not have empty bodies catch (System.Resources.MissingManifestResourceException) { // When the main assembly doesn't contain any resource (all the resources must come from satellite assembly) // then above GetStream( ) just throws exception. We should catch this exception here and let the code continue // to try with the original file name. // If the main assembly does contain resource, but the resource with above _name does't exist, the above GetStream( ) // just returns null without exception. } #pragma warning restore 6502 } // Do not attempt to load the original file name here. If the .baml does not exist or if this resource not // .xaml or .baml then we will follow the normal code path to attempt to load the stream using the original name. return null; } #endregion //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Members private SecurityCriticalDataForSet_rmWrapper; private bool _ensureResourceIsCalled = false; private string _name; private Object _globalLock = new Object(); #endregion Private Members } } // 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
- _ConnectOverlappedAsyncResult.cs
- GraphicsPath.cs
- ValidatingCollection.cs
- Figure.cs
- DurableOperationAttribute.cs
- DataGridViewSelectedCellsAccessibleObject.cs
- CodeSnippetStatement.cs
- ElementNotEnabledException.cs
- TagPrefixAttribute.cs
- PropertyStore.cs
- SQLBinary.cs
- Activity.cs
- SoapAttributeOverrides.cs
- CharEnumerator.cs
- WebPartTransformerCollection.cs
- recordstate.cs
- XmlSchemaGroup.cs
- ValidationSummary.cs
- ExpressionBinding.cs
- TabPanel.cs
- MediaSystem.cs
- VectorCollectionConverter.cs
- BitmapEffectGroup.cs
- MessageSecurityOverMsmqElement.cs
- TextEditorSelection.cs
- SoapServerMethod.cs
- WebAdminConfigurationHelper.cs
- EntityCommand.cs
- DataViewManagerListItemTypeDescriptor.cs
- PropertyChangeTracker.cs
- StateDesigner.cs
- TrustManager.cs
- EncoderReplacementFallback.cs
- LinkArea.cs
- MemberDomainMap.cs
- SafeRsaProviderHandle.cs
- RetrieveVirtualItemEventArgs.cs
- ExpressionBindingCollection.cs
- BitmapFrame.cs
- SpinLock.cs
- TreeNodeBinding.cs
- webclient.cs
- BinaryCommonClasses.cs
- DataGridTextBoxColumn.cs
- DataBindingCollection.cs
- ValuePattern.cs
- WMIGenerator.cs
- ValidationError.cs
- WebDisplayNameAttribute.cs
- CollectionBuilder.cs
- ErrorStyle.cs
- SqlNodeTypeOperators.cs
- GregorianCalendarHelper.cs
- ScrollViewerAutomationPeer.cs
- ITreeGenerator.cs
- Int32.cs
- VBIdentifierTrimConverter.cs
- SynchronizedInputPattern.cs
- Point3D.cs
- QuaternionAnimationBase.cs
- SQLBytesStorage.cs
- StrongTypingException.cs
- ThreadSafeList.cs
- Floater.cs
- FloatSumAggregationOperator.cs
- SqlBulkCopy.cs
- GenericRootAutomationPeer.cs
- SocketException.cs
- IndicFontClient.cs
- HtmlTextArea.cs
- ProfileEventArgs.cs
- XsltArgumentList.cs
- SafeRightsManagementEnvironmentHandle.cs
- Crc32.cs
- DesignerProperties.cs
- ContainerParagraph.cs
- ControlEvent.cs
- ModifyActivitiesPropertyDescriptor.cs
- SecurityAppliedMessage.cs
- XmlILStorageConverter.cs
- ISAPIRuntime.cs
- DataGridTemplateColumn.cs
- MappingMetadataHelper.cs
- _LocalDataStoreMgr.cs
- EntityDataSourceSelectingEventArgs.cs
- DbConnectionOptions.cs
- XamlSerializationHelper.cs
- PassportAuthenticationModule.cs
- SQLGuid.cs
- WorkflowItemPresenter.cs
- MailSettingsSection.cs
- Bezier.cs
- ArrangedElementCollection.cs
- KeyProperty.cs
- Query.cs
- WindowsContainer.cs
- PropertyGroupDescription.cs
- PrePrepareMethodAttribute.cs
- SequenceNumber.cs
- FindResponse.cs