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POASP Classic Request.Form is empty after adding IIS Module
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  1. POASP Classic Request.Form is empty after adding IIS Module
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    copied!<p>This is driving me crazy. I have a web app that is a mixture of ASP.NET MVC 3 and Classic ASP. The Classic ASP code is very old and doesn't really do much to prevent Cross-Site Scripting or any other vulnerability. In an effort to add a bit of security to the Classic ASP pages I created an IIS module that will intercept the HTTP request before it is processed by Classic ASP and triggers the ASP.NET validation of the request. Here it is:</p> <pre><code>public class RequestValidationModule : IHttpModule { public void Dispose() { } public void Init(HttpApplication context) { context.PreRequestHandlerExecute += new EventHandler(context_PreRequestHandlerExecute); } void context_PreRequestHandlerExecute(object sender, EventArgs e) { var context = HttpContext.Current; if (context != null) { var request = context.Request; if (request != null) { string path = request.CurrentExecutionFilePathExtension; if(string.Equals(path, ".asp", StringComparison.OrdinalIgnoreCase)) { //access request collections to trigger request validation var form = request.Form; var qs = request.QueryString; var c = request.Cookies; var h = request.Headers; } } } } } </code></pre> <p>This module works beautifully. However, if a valid request is sent, the object <strong>Request.Form</strong> in the Classic ASP code is always empty! I'm not able to get any of the values submitted in the form (or querystring). As soon as I remove the Module from the web.config the request.form is populated again. </p> <p>This is an ASP.NET MVC 3 app running in IIS 7.5 integrated mode. All the asp pages are in a directory inside the MVC 3 app.</p>
 

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