Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / fx / src / xsp / System / Web / DefaultHttpHandler.cs / 3 / DefaultHttpHandler.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Web { using System; using System.Collections; using System.Collections.Specialized; using System.Globalization; using System.Text; using System.Web.Util; using System.Security.Permissions; [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class DefaultHttpHandler : IHttpAsyncHandler { private HttpContext _context; private NameValueCollection _executeUrlHeaders; public DefaultHttpHandler() { } protected HttpContext Context { get { return _context; } } // headers to provide to execute url protected NameValueCollection ExecuteUrlHeaders { get { if (_executeUrlHeaders == null && _context != null) { _executeUrlHeaders = new NameValueCollection(_context.Request.Headers); } return _executeUrlHeaders; } } // called when we know a precondition for calling // execute URL has been violated public virtual void OnExecuteUrlPreconditionFailure() { // do nothing - the derived class might throw } // add a virtual method that provides the request target for the EXECUTE_URL call // if return null, the default calls EXECUTE_URL for the default target public virtual String OverrideExecuteUrlPath() { return null; } internal static bool IsClassicAspRequest(String filePath) { return StringUtil.StringEndsWithIgnoreCase(filePath, ".asp"); } public virtual IAsyncResult BeginProcessRequest(HttpContext context, AsyncCallback callback, Object state) { // DDB 168193: DefaultHttpHandler is obsolate in integrated mode if (HttpRuntime.UseIntegratedPipeline) { throw new PlatformNotSupportedException(SR.GetString(SR.Method_Not_Supported_By_Iis_Integrated_Mode, "DefaultHttpHandler.BeginProcessRequest")); } _context = context; HttpResponse response = _context.Response; if (response.CanExecuteUrlForEntireResponse) { // use ExecuteUrl String path = OverrideExecuteUrlPath(); if (path != null && !HttpRuntime.IsFullTrust) { // validate that an untrusted derived classes (not in GAC) // didn't set the path to a place that CAS wouldn't let it access if (!this.GetType().Assembly.GlobalAssemblyCache) { HttpRuntime.CheckFilePermission(context.Request.MapPath(path)); } } return response.BeginExecuteUrlForEntireResponse(path, _executeUrlHeaders, callback, state); } else { // let the base class throw if it doesn't want static files handler OnExecuteUrlPreconditionFailure(); // use static file handler _context = null; // don't keep request data alive in sync case HttpRequest request = context.Request; // refuse POST requests if (request.HttpVerb == HttpVerb.POST) { throw new HttpException(405, SR.GetString(SR.Method_not_allowed, request.HttpMethod, request.Path)); } // refuse .asp requests if (IsClassicAspRequest(request.FilePath)) { throw new HttpException(403, SR.GetString(SR.Path_forbidden, request.Path)); } // default to static file handler StaticFileHandler.ProcessRequestInternal(context); // return async result indicating completion return new HttpAsyncResult(callback, state, true, null, null); } } public virtual void EndProcessRequest(IAsyncResult result) { if (_context != null) { HttpResponse response = _context.Response; _context = null; response.EndExecuteUrlForEntireResponse(result); } } public virtual void ProcessRequest(HttpContext context) { // this handler should never be called synchronously throw new InvalidOperationException(SR.GetString(SR.Cannot_call_defaulthttphandler_sync)); } public virtual bool IsReusable { get { return false; } } } } // 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
- FormatException.cs
- DataList.cs
- sqlser.cs
- HandleValueEditor.cs
- GlyphElement.cs
- RegexMatch.cs
- CaseExpr.cs
- Ops.cs
- FailedToStartupUIException.cs
- Italic.cs
- CodeDomSerializationProvider.cs
- UIElementAutomationPeer.cs
- ImmutablePropertyDescriptorGridEntry.cs
- ComponentChangedEvent.cs
- RegisteredHiddenField.cs
- HttpStreamFormatter.cs
- Pair.cs
- ParameterCollection.cs
- AssemblyAttributesGoHere.cs
- TransportConfigurationTypeElement.cs
- SymmetricKeyWrap.cs
- ClientBuildManager.cs
- WsiProfilesElement.cs
- IgnoreSectionHandler.cs
- ArgumentException.cs
- HtmlInputPassword.cs
- TcpProcessProtocolHandler.cs
- InputLangChangeEvent.cs
- AssemblyAssociatedContentFileAttribute.cs
- HostingEnvironmentException.cs
- PageBreakRecord.cs
- WindowsFont.cs
- HttpFileCollection.cs
- WebPartDescriptionCollection.cs
- SoapEnumAttribute.cs
- CellParagraph.cs
- PageEventArgs.cs
- Constants.cs
- CodeDesigner.cs
- ConfigurationProviderException.cs
- OdbcConnectionStringbuilder.cs
- BitmapEffectDrawingContextWalker.cs
- ByteAnimationUsingKeyFrames.cs
- EntityDataSourceChangingEventArgs.cs
- HexParser.cs
- PrintDialogException.cs
- ObjectNavigationPropertyMapping.cs
- URLString.cs
- TypeDescriptionProvider.cs
- _HTTPDateParse.cs
- DefaultEvaluationContext.cs
- SByteConverter.cs
- SplineQuaternionKeyFrame.cs
- PageParserFilter.cs
- XmlWellformedWriter.cs
- CodeDelegateCreateExpression.cs
- LoggedException.cs
- FontFamilyIdentifier.cs
- WizardPanelChangingEventArgs.cs
- DataGrid.cs
- Frame.cs
- XamlTypeMapper.cs
- DataGridViewTextBoxColumn.cs
- DBAsyncResult.cs
- ProcessHost.cs
- CollectionViewGroup.cs
- ProfileParameter.cs
- DecoderExceptionFallback.cs
- MetadataItemCollectionFactory.cs
- ObjectStateManager.cs
- CallContext.cs
- KeyConverter.cs
- XmlSchemaDatatype.cs
- PagesSection.cs
- CustomGrammar.cs
- LogRestartAreaEnumerator.cs
- ProtocolsSection.cs
- ChangePasswordDesigner.cs
- TcpProcessProtocolHandler.cs
- CultureInfo.cs
- ExecutionEngineException.cs
- ImageKeyConverter.cs
- BitmapImage.cs
- TypeConverter.cs
- CollectionsUtil.cs
- ProcessManager.cs
- CSharpCodeProvider.cs
- RenderCapability.cs
- Span.cs
- ObjectStateEntryDbDataRecord.cs
- ProfileGroupSettingsCollection.cs
- UIElementPropertyUndoUnit.cs
- CompareValidator.cs
- UpdateTranslator.cs
- Matrix3D.cs
- CodeCatchClauseCollection.cs
- CommandExpr.cs
- GeneralTransformCollection.cs
- EventManager.cs
- ArgumentDesigner.xaml.cs