Last post Nov 10, 2010 10:34 AM by rakesh.choudhary
Jul 25, 2006 05:59 PM|askramm|LINK
Jul 26, 2006 04:13 AM|lostlander|LINK
First , the way asp.net handles each request is just like in a pipeline. HTTPModule and HTTPHandler are the two processing point of this pipeline.
It's just like a filter. The Modules are called before and after the handler executes.
For example: BeginRequest, AuthenticationRequest event, EndRequest event etc. You may intercept , participate and modify each request.
Modules implement the IHttpMudule interface located in the System.Web.System.
You may think it as a program.(or handler, or module), it execute some code when the user send some request. An .aspx page can be thought as a HTTPHandler too, which implements more functions.
For may Information, Pls refer to:
HTTP Handlers and HTTP Modules in ASP.NET
How To Create an ASP.NET HTTP Handler by Using Visual C# .NET
Jul 26, 2006 06:21 PM|RamSVel|LINK
Jul 28, 2006 06:01 AM|lostlander|LINK
Thanks landlost. but my question is even inside the BeginRequest or AuthenticationRequest in global.asax we can write the code we want so what is point of intercepting? Pls forgive if i am wrong.
Here are some resouces maybe you need. Hope it helps.
HttpHandlers and HttpModules
Sep 21, 2009 07:35 AM|sandy060583|LINK
An ASP.NET HTTP handler is the process (frequently referred to as the "endpoint") that runs in response to a request made to an ASP.NET Web application. The most common handler is an ASP.NET page handler that processes .aspx files. When users request an
.aspx file, the request is processed by the page through the page handler. You can create your own HTTP handlers that render custom output to the browser.
An HTTP module is an assembly that is called on every request that is made to your application. HTTP modules are called as part of the ASP.NET request pipeline and have access to life-cycle events throughout the request. HTTP modules let you examine incoming
and outgoing requests and take action based on the request.
Typical uses for custom HTTP handlers include the following:
RSS feeds To create an RSS feed for a Web site, you can create a handler that emits RSS-formatted XML. You can then bind a file name extension such as .rss to the custom handler. When users send a request to your site that ends in .rss, ASP.NET
calls your handler to process the request.
Image server If you want a Web application to serve images in a variety of sizes, you can write a custom handler to resize images and then send them to the user as the handler's response.
Typical uses for HTTP modules include the following:
Security Because you can examine incoming requests, an HTTP module can perform custom authentication or other security checks before the requested page, XML Web service, or handler is called. In Internet Information Services (IIS) 7.0 running
in Integrated mode, you can extend forms authentication to all content types in an application.
Statistics and logging Because HTTP modules are called on every request, you can gather request statistics and log information in a centralized module, instead of in individual pages.
Custom headers or footers Because you can modify the outgoing response, you can insert content such as custom header information into every page or XML Web service response.
HTTPModule and HttpHandler
Sep 28, 2009 09:41 AM|maujiram|LINK
i'm new in website development field. i hav found an error which indicates in subject field.
any body help me.
i'm using these tools.
iis5.1,vs2008,vb3.5 and host on godaddy with iis7.0
please help me.
Jun 28, 2010 07:18 AM|sunilsingh|LINK
You are not specifying the correct url to access the page.
Nov 10, 2010 10:34 AM|rakesh.choudhary|LINK