/Visual Studio 2008/CSASPNETCustomHttpHandlerandModule/CustomHandlerandModuleProject/CustomHttpModule.cs

/****************************** Module Header ******************************\

* Module Name:  CustomHttpModule

* Project:      CustomHandlerandModuleProject

* Copyright (c) Microsoft Corporation.

* 

* 

* This module implements IHttpModule interface to write custom Http Module

* to send response for the extension with .aspx resource.

*

*  

* This source is subject to the Microsoft Public License.

* See http://www.microsoft.com/opensource/licenses.mspx#Ms-PL.

* All other rights reserved.

* 

* History:

* 11/27/2009 11:16 AM Thomas Sun Created

\***************************************************************************/

#region Using directives

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

#endregion Using directives



namespace CustomHandlerandModuleProject

{

    /// <summary>

    /// Inherit IHttpModule 

    /// </summary>

    public  class CustomHttpModule : IHttpModule

    {

        /// <summary>

        /// Implement the Init method

        /// </summary>

        /// <param name="application">Current HttpApplication object</param>

        public void Init(HttpApplication application)

        {

            // Register BeginRequest event

            application.BeginRequest += (new EventHandler(this.Application_BeginRequest));

            // Register EndRequest event

            application.EndRequest += (new EventHandler(this.Application_EndRequest));

        }



        /// <summary>

        /// Write content to Response object in BeginRequest event

        /// </summary>

        /// <param name="source">Current HttpApplication object</param>

        /// <param name="e"></param>

        private void Application_BeginRequest(Object source, EventArgs e)

        {

            // Get current HttpApplication object

            HttpApplication application = (HttpApplication)source;

            // Get current Context object

            HttpContext context = application.Context;

            // Get request file path

            string filePath = context.Request.FilePath;

            // Get request file's extension

            string fileExtension = VirtualPathUtility.GetExtension(filePath);



            // Write content if extension is .aspx

            if (fileExtension.Equals(".aspx"))

            {

                context.Response.Write("<h1><font color=red>Beginning of Request: added by Custom Module</font></h1><hr>");

            }

        }



        /// <summary>

        /// Write content to Response object in EndRequest event

        /// </summary>

        /// <param name="source">Current HttpApplication object</param>

        /// <param name="e"></param>

        private void Application_EndRequest(Object source, EventArgs e)

        {

            // Get current HttpApplication object

            HttpApplication application = (HttpApplication)source;

            // Get current Context object

            HttpContext context = application.Context;

            // Get request file path

            string filePath = context.Request.FilePath;

            // Get request file's extension

            string fileExtension = VirtualPathUtility.GetExtension(filePath);



            // Write content if extension is .aspx

            if (fileExtension.Equals(".aspx"))

            {

                context.Response.Write("<hr><h1><font color=red>End of Request: added by Custom Module</font></h1>");

            }

        }



        public void Dispose() { }



    }

}