Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / Configuration / HandlerFactoryCache.cs / 1305376 / HandlerFactoryCache.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * Config related classes for HttpApplication */ namespace System.Web.Configuration { using System; using System.Configuration; using System.Web.Compilation; using System.Security; using System.Security.Permissions; /* * An object to cache a factory */ internal class HandlerFactoryCache { private IHttpHandlerFactory _factory; internal HandlerFactoryCache(string type) { Object instance = Create(type); // make sure it is either handler or handler factory if (instance is IHttpHandler) { // create bogus factory around it _factory = new HandlerFactoryWrapper((IHttpHandler)instance, GetHandlerType(type)); } else if (instance is IHttpHandlerFactory) { _factory = (IHttpHandlerFactory)instance; } else { throw new HttpException(SR.GetString(SR.Type_not_factory_or_handler, instance.GetType().FullName)); } } internal HandlerFactoryCache(HttpHandlerAction mapping) { Object instance = mapping.Create(); // make sure it is either handler or handler factory if (instance is IHttpHandler) { // create bogus factory around it _factory = new HandlerFactoryWrapper((IHttpHandler)instance, GetHandlerType(mapping)); } else if (instance is IHttpHandlerFactory) { _factory = (IHttpHandlerFactory)instance; } else { throw new HttpException(SR.GetString(SR.Type_not_factory_or_handler, instance.GetType().FullName)); } } internal IHttpHandlerFactory Factory { get { return _factory; } } // Dev10 732000: In a homogenous AppDomain, it is necessary to assert FileIoPermission to load types outside // the AppDomain's grant set. [FileIOPermission(SecurityAction.Assert, AllFiles = FileIOPermissionAccess.Read | FileIOPermissionAccess.PathDiscovery)] private Type GetTypeWithAssert(string type) { return BuildManager.GetType(type, throwOnError: true, ignoreCase: false); } internal Type GetHandlerType( HttpHandlerAction handlerAction ) { // HACKHACK: for now, let uncreatable types through and error later (for .soap factory) // This design should change - developers will want to know immediately // when they misspell a type Type t = GetTypeWithAssert(handlerAction.Type); // throw for bad types in deferred case if (!ConfigUtil.IsTypeHandlerOrFactory(t)) throw new ConfigurationErrorsException(SR.GetString(SR.Type_not_factory_or_handler, handlerAction.Type), handlerAction.ElementInformation.Source, handlerAction.ElementInformation.LineNumber); return t; } internal Type GetHandlerType(string type) { // HACKHACK: for now, let uncreatable types through and error later (for .soap factory) // This design should change - developers will want to know immediately // when they misspell a type Type t = GetTypeWithAssert(type); HttpRuntime.FailIfNoAPTCABit(t, null, null); // throw for bad types in deferred case if (!ConfigUtil.IsTypeHandlerOrFactory(t)) throw new ConfigurationErrorsException(SR.GetString(SR.Type_not_factory_or_handler, type)); return t; } internal object Create(string type) { // HACKHACK: for now, let uncreatable types through and error later (for .soap factory) // This design should change - developers will want to know immediately // when they misspell a type return HttpRuntime.CreateNonPublicInstance(GetHandlerType(type)); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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