using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Web;

namespace pipeline.App_Start

{
    /// <summary>
    ///对Httpapplication 中的一系列事件进行注册，叫做Ihttpmodule ，这样就可以管道中进行的一系列事件, 大概有19个事件
    /// httpmodule作用： 日志、性能监控、权限、缓存、页面加东西、请求过滤、
    /// </summary>
    public class CustomHttpModule : IHttpModule
    {
        public void Init(HttpApplication context)
        {
            //  注册beginRequest
            context.BeginRequest += (s, e) =>
            {

                Debug.WriteLine("BeginRequest");
            };
            context.AcquireRequestState += (s, e) =>
            {
                Debug.WriteLine("AcquireRequestState");

            };
            context.Error += (s, e) =>
            {
                Debug.WriteLine("Error");

            };
            context.Disposed += (s, e) =>
            {
                Debug.WriteLine("Disposed");

            };
            context.PostResolveRequestCache += (s, e) =>
            {
                Debug.WriteLine("PostResolveRequestCache 缓存");

            };
            context.PostReleaseRequestState += (s, e) =>
            {
                Debug.WriteLine("PostReleaseRequestState");

            };
            context.PostResolveRequestCache += (s, e) =>
            {
                // System.Web.Routing.UrlRoutingModule   MVC 其实就是一个扩展
                Debug.WriteLine("PostReleaseRequestState");
                //  MVC   就是 httpmodule扩展，通过URLroutemodule 
            };
            context.PreRequestHandlerExecute += (s, e) =>
            {
                Debug.WriteLine("PreRequestHandlerExecute");
            };
            context.MapRequestHandler += (s, e) =>
            {
                Debug.WriteLine("MapRequestHandler");
            };
            context.PostAuthorizeRequest += (s, e) =>
            {
                Debug.WriteLine("PostAuthorizeRequest");
            };
            context.EndRequest += (s, e) =>
            {

                Debug.WriteLine("EndRequest");
            };
        }

        public void Dispose()
        {
            throw new NotImplementedException();
        }
    }
}

	<system.webServer>
		<validation validateIntegratedModeConfiguration="false" />
		 <modules>
			<!--集成模式下httpmodule的配置-->
			<add name="CustomHttpModule" type="pipeline.App_Start.CustomHttpModule"/>
			<!--不用的事件可以移除，提高性能，如下-->
			 <remove name="FormsAuthoriztion"/> 
		 </modules>
	</system.webServer>