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