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
- DatatypeImplementation.cs
- XmlTextWriter.cs
- HtmlToClrEventProxy.cs
- XpsViewerException.cs
- ControlHelper.cs
- XmlDocumentSurrogate.cs
- ListDesigner.cs
- DataBindingCollection.cs
- BufferedResponseStream.cs
- TableDetailsCollection.cs
- OdbcUtils.cs
- TitleStyle.cs
- SchemaContext.cs
- X509InitiatorCertificateClientElement.cs
- PropertyHelper.cs
- MatrixAnimationUsingKeyFrames.cs
- WebProxyScriptElement.cs
- RowToParametersTransformer.cs
- SynchronizationContext.cs
- MILUtilities.cs
- Script.cs
- DrawingCollection.cs
- ItemCollection.cs
- IdentitySection.cs
- EditorPart.cs
- ChannelReliableSession.cs
- PropertyGridCommands.cs
- UInt16.cs
- PkcsUtils.cs
- TickBar.cs
- WpfKnownTypeInvoker.cs
- ClientSideProviderDescription.cs
- SystemIPInterfaceStatistics.cs
- Transform3DGroup.cs
- SimplePropertyEntry.cs
- ProgramPublisher.cs
- DoubleAnimation.cs
- ProcessModelInfo.cs
- EnterpriseServicesHelper.cs
- ValueExpressions.cs
- GestureRecognizer.cs
- MetabaseServerConfig.cs
- IdentityHolder.cs
- SessionPageStatePersister.cs
- DbDataReader.cs
- SecurityTokenSerializer.cs
- CodeSubDirectoriesCollection.cs
- CompilationUnit.cs
- ItemsPresenter.cs
- StringBuilder.cs
- base64Transforms.cs
- WebPartEditorOkVerb.cs
- Stack.cs
- ThemeInfoAttribute.cs
- XamlToRtfWriter.cs
- RegistryDataKey.cs
- WebPartDisplayMode.cs
- Point3DCollection.cs
- VectorValueSerializer.cs
- AttributeProviderAttribute.cs
- GotoExpression.cs
- WeakEventManager.cs
- ObjectStateManager.cs
- DetailsViewUpdatedEventArgs.cs
- Point3DIndependentAnimationStorage.cs
- ResolveResponseInfo.cs
- CodeBinaryOperatorExpression.cs
- DictionarySectionHandler.cs
- Converter.cs
- WebContentFormatHelper.cs
- ObjectResult.cs
- ComponentResourceKeyConverter.cs
- CodeTypeMemberCollection.cs
- SerializationSectionGroup.cs
- XmlChildNodes.cs
- SafeTimerHandle.cs
- Application.cs
- GridViewDeletedEventArgs.cs
- XmlCharacterData.cs
- FormViewCommandEventArgs.cs
- DataGridHeaderBorder.cs
- DataSourceExpression.cs
- Latin1Encoding.cs
- QueryStringConverter.cs
- PackageProperties.cs
- ValidationErrorInfo.cs
- TriggerBase.cs
- SafeHGlobalHandleCritical.cs
- ISAPIWorkerRequest.cs
- Config.cs
- PropertyIDSet.cs
- Comparer.cs
- ConfigurationCollectionAttribute.cs
- CommandManager.cs
- TextEditorCharacters.cs
- SubpageParaClient.cs
- Section.cs
- PeerInputChannelListener.cs
- SystemIPv4InterfaceProperties.cs
- MethodBuilder.cs