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/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / Routing / UrlRoutingModule.cs / 1305376 / UrlRoutingModule.cs
namespace System.Web.Routing { using System.Diagnostics; using System.Globalization; using System.Runtime.CompilerServices; using System.Web.Security; [TypeForwardedFrom("System.Web.Routing, Version=3.5.0.0, Culture=Neutral, PublicKeyToken=31bf3856ad364e35")] public class UrlRoutingModule : IHttpModule { private static readonly object _contextKey = new Object(); private static readonly object _requestDataKey = new Object(); private RouteCollection _routeCollection; [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly", Justification = "This needs to be settable for unit tests.")] public RouteCollection RouteCollection { get { if (_routeCollection == null) { _routeCollection = RouteTable.Routes; } return _routeCollection; } set { _routeCollection = value; } } protected virtual void Dispose() { } protected virtual void Init(HttpApplication application) { ////////////////////////////////////////////////////////////////// // Check if this module has been already addded if (application.Context.Items[_contextKey] != null) { return; // already added to the pipeline } application.Context.Items[_contextKey] = _contextKey; // Ideally we would use the MapRequestHandler event. However, MapRequestHandler is not available // in II6 or IIS7 ISAPI Mode. Instead, we use PostResolveRequestCache, which is the event immediately // before MapRequestHandler. This allows use to use one common codepath for all versions of IIS. application.PostResolveRequestCache += OnApplicationPostResolveRequestCache; } private void OnApplicationPostResolveRequestCache(object sender, EventArgs e) { HttpContextBase context = new HttpContextWrapper(((HttpApplication)sender).Context); PostResolveRequestCache(context); } [Obsolete("This method is obsolete. Override the Init method to use the PostMapRequestHandler event.")] public virtual void PostMapRequestHandler(HttpContextBase context) { // Backwards compat with 3.5 which used to have code here to Rewrite the URL } public virtual void PostResolveRequestCache(HttpContextBase context) { // Match the incoming URL against the route table RouteData routeData = RouteCollection.GetRouteData(context); // Do nothing if no route found if (routeData == null) { return; } // If a route was found, get an IHttpHandler from the route's RouteHandler IRouteHandler routeHandler = routeData.RouteHandler; if (routeHandler == null) { throw new InvalidOperationException( String.Format( CultureInfo.CurrentUICulture, SR.GetString(SR.UrlRoutingModule_NoRouteHandler))); } // This is a special IRouteHandler that tells the routing module to stop processing // routes and to let the fallback handler handle the request. if (routeHandler is StopRoutingHandler) { return; } RequestContext requestContext = new RequestContext(context, routeData); // Dev10 766875 Adding RouteData to HttpContext context.Request.RequestContext = requestContext; IHttpHandler httpHandler = routeHandler.GetHttpHandler(requestContext); if (httpHandler == null) { throw new InvalidOperationException( String.Format( CultureInfo.CurrentUICulture, SR.GetString(SR.UrlRoutingModule_NoHttpHandler), routeHandler.GetType())); } if (httpHandler is UrlAuthFailureHandler) { if (FormsAuthenticationModule.FormsAuthRequired) { UrlAuthorizationModule.ReportUrlAuthorizationFailure(HttpContext.Current, this); return; } else { throw new HttpException(401, SR.GetString(SR.Assess_Denied_Description3)); } } // Remap IIS7 to our handler context.RemapHandler(httpHandler); } #region IHttpModule Members void IHttpModule.Dispose() { Dispose(); } void IHttpModule.Init(HttpApplication application) { Init(application); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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