HttpHandlers / Modules :: Changes In Page Object In HttpModule Is Not Working

Feb 15, 2010

I am trying to access the page object in module and change the hyper links urls. Page object is being access properly, but changes I am making are not effecting the output. I mean here I am changing the url to TestURL.aspx, but this is not comming. could

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HttpHandlers / Modules :: HttpModule Is Not Working

Jan 24, 2010

I have written simple http module just to print Hello. but it is not working.

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HttpHandlers / Modules :: Disabling ValidateRequest In HttpModule?

May 12, 2010

I just updated my project to ASP.NET 4. All of a sudden, some of my HttpHandlers are giving ValidateRequest errors. This is because the user HAS to be able to put an XML string in the querystring.I know how to disable ValidateRequest on a page, but how do I do it on an HTTPHandler?

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HttpHandlers / Modules :: How To Read Response Headers Inside An Httpmodule

Jan 23, 2010

as subject, how can i read Response Headers inside an httpmodule?

i need the "Content-encoding" header value.

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HttpHandlers / Modules :: HttpModule Broken After Migration To IIS7 (integrated Mode)?

Jul 27, 2010

In IIS6 the scenario below is working perfectly.I have an HttpModule called URLRedirect which examines URLS and by using RegEx rewrites of applicable. An example is a URL "/doc47.pdf" gets redirected to docpdf.ashx?id=47 Then the docpdf.ashx used the id value and, using a database builds an application/pdf document and returns it. Since I need to validate that the user has access to the data, the first line of the ProcessRequest(HttpContext context) function is:if (context.User.Identity.IsAuthenticated) ..... This is where the problem occurs, but more details first.

On a webpage, access to which is restricted to lgged on users who meet certain criteria there is a link which allows the user to present the page as a PDF document. This is achieved by using javascript to open a popup window using the window.open("/doc47.pdf", ... ) function.This all works fine under IIS6 and under IIS7 if I change the mode to Classic. But, under IIS7 in integrated mode, the following happens.The line in doc.ashx described above raises an exception because context.User == null. But, and this is interesting, if instead of using the link that opens the popup window I instead type /doc.pdf?id=47 into the address bar, the PDF document displays correctly.So this indicates to me that the URLRedirect Module is somehow losing the logged on user information.

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HttpHandlers / Modules :: Getting Exception Info From Catch Block To Application_Error Event Of HttpModule?

Oct 7, 2010

regarding one issue I am facing. I created a httpmodule for hadling the unhandled errors and I need to log those errors using log 4 net in database.Everting working fine but I am not getting any error information once the error was hadled and I need that info too. I want to make it as a centralize module which can trap all errors and log those errors.How call application_error event of httpmodule from catch block...so that I can log that info there and I no need log in every catch block..

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HttpHandlers / Modules :: Trying To Write An HttpModule That Will Work In IIS7 With Integrated Pipeline Mode AppPool?

Jan 2, 2011

am trying to write an HttpModule that will work in IIS7 with integrated pipeline mode AppPool. Within this module I need to access Session variables and to be able to capture the Session Start and End events. I have found a couple of articles on this topic that indicate the need to modify the behavior of the HttpHandler in PostAcquireRequestState to force the Session for the context to be initialized. The article I am using as a template is posted here:[URL]In my case I am getting the following error:

[NullReferenceException: Object reference not set to an instance of an object.] System.Web.PipelineModuleStepContainer.GetEventCount(RequestNotification notification, Boolean isPostEvent) +30 System.Web.PipelineStepManager.ResumeSteps(Exception error) +1112
System.Web.HttpApplication.BeginProcessRequestNotification(HttpContext context, AsyncCallback cb) +113 System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +616

I believe that this error implies a problem with attempting to attach an event handler multiple times. I am aware that the modules Init function can be called more than once and have set a static initialization flag which ensures that I will only ever attach the event handler once.In the most condensed form my code is as follows:

public class HttpModule : IHttpModule, IRequiresSessionState

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HttpHandlers / Modules :: HttpModule That Alters Request.QueryString And Request.Form?

Jan 27, 2011

We're trying to implement functionality that intercepts, inspects, and alters if needed data in the Request.QueryString and Request.Form collections.

Since Request.QueryString and Request.Form are readonly, is it possible to use a HttpModule to do this without Reflection or Response.Redirect?

We're thinking that we can construct a new HttpRequest, and replace the original one. Would there be any implications in doing this?

I know mocking this object is impossible without using HttpRequestWrapper, but wasn't sure whether ASP.NET sets other things beyond the constructor.

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HttpHandlers / Modules :: Search Engine Friendly URLs HttpHandler, HttpModule, IIS 6.0 / Get A 404 Error For The Friendly URL?

Mar 31, 2010

I've tried to implement two different solutions that use either and HttpModule or and HttpHandler to do URLRewriting for me. These work great on IIS 7 within my local development environment in Integrated and Classic modes. Currently the production server is running IIS 6.0 on a shared hosting environment. It appears that the request at least hits both the Module and Handler as the URL above redirect to the particular friendly url, but it doesn't redirect and hit hte Module or Handler again. Instead I get a 404 error for the friendly URL.

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HttpHandlers / Modules :: URLHandler Code / Getting "Object Reference Not Set To An Instance Of An Object." Error

Feb 8, 2010

Everything works fine on my dev machine which is running Windows 7. However, when I deploy my app to my production server at MaximumASP running 64 bit Windows 2008 R2 Standard, I just can't access those pages that are handled by my URL Routing logic. I'm getting the infamous "Object reference not set to an instance of an object." error.

The code below is my URL handler for Mailbox module in my application. I've defined mail folders in my database. All this does is if user is looking for /mailbox/Inbox, it looks up the folderID and sends the user the mailbox.aspx page which is expecting a folderID

[Code]....

And this is the part in Global.asax

[Code]....

And finally, the code in the mailbox page:

[Code]....

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HttpHandlers / Modules :: URL Rewrite Not Working On Hosting Server?

Mar 19, 2010

I have using code provided by this article :

[URL]

It works fine with IIS 7.0 on localhost but when i upload my site and try to access the rules written for url rewrite it gives me error message of 404 ..

here is my web.config file the require changes for Windows server 2003 IIS 6.0

[Code]....

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HttpHandlers / Modules :: .ashx File Is Not Working In Iis7

Jan 16, 2011

.ashx file is working perfectly in visual studio iis but when hosted it is not working

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HttpHandlers / Modules :: Downloading File Not Working With URL Rewriting?

Mar 21, 2011

I have implemented URL rewritting in my application. I did it in Application_BeginRequest located in Global.asax. My url rewritting in working fine. Now in order to maintain rewritting during post back.

I have added code line this.Form.Action = Request.RawUrl; in page load event in order to maintain rewritten URL during post back. When I am adding below code on image button click to download file it doesn't work. It says "Internet explorer cannot display webpage". When I am removing line this.Form.Action = Request.RawUrl; from page load then downloading file will start working but URL rewritting will not work on postback.

FileInfo objFi = new FileInfo(Server.MapPath(filepath));
this.Form.Action = Request.RawUrl;
HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment; filename=" + objFi.Name);
HttpContext.Current.Response.Charset = "";
HttpContext.Current.Response.AddHeader("Content-Length", objFi.Length.ToString());
HttpContext.Current.Response.ContentType = "application/octet-stream";
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HttpContext.Current.Response.Flush();
HttpContext.Current.Response.End();

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HttpHandlers / Modules :: Regarding Url Rewriting Not Working On The Dedicated Virtual Server?

Jan 25, 2011

I want the rewrite url to work on the virtual dedicated server. so when someone enters the url without extension like http://megafastline.com/feedback , it shud display the contents of the page feedback.aspx

The code work perfectly fine in the localhost, but when i uploaded this on the godaddy dedicated virtual server and hit http://megafastline.com/feedback , i m getting

page cannot be found!

This is my code below

in webconfig file

<httpModules>
<add name="UrlRewrite" type="UrlRewrite" />
</httpModules>

and a class in app_code called UrlRewrite.cs;

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;

[Code]....

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HttpHandlers / Modules :: URL Rewrting Is Not Working Shift The Site From Windows 2003 To 2008 Server?

Jan 17, 2011

URL rewrting is not working when I shift the site from windows 2003 to 2008 server i.e from IIS6 to IIS7.I added the aspnet_isapi.dll to Handler Mapping. still it is not working.
showing me page not found 404 error.

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HttpHandlers / Modules :: ASP Page Traffic Test?

Jan 20, 2010

I'm going to test the performance of my page in 2 situation.

1. Using update panel to perform partial page render to display the result.

2. Implement "ICallbackEventHandler" interface to return and display the result.

May I know how to prove that 2nd situation will perform better than the 1st situation?

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HttpHandlers / Modules :: Entry Type Of IIS Custom Modules?

Jan 26, 2010

After adding a custom module, Module list is showing MyModule "Entry Type" as "Local".

and Entry Type of all other modules is "Inherited".

what is Entry Type and difference between "Local" and "Inherited"?

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HttpHandlers / Modules :: Redirect To Login Page From Generic Handler

Sep 8, 2010

I have created a asp.net generic handler to use it in auto-complete text box. Here is my code to it

/// <summary>

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HttpHandlers / Modules :: Response.TransmitFile Stops Rest Of Page Execution?

Nov 12, 2010

i am trying to have a download on my page. I have implemented the code below but code execution stops after the download message pops up, even if i press save or cancel, nothing happens after that.

[Code]....

I have tried it a few times without Response.Clear() and Response.End() but it didn't make any difference to take these off. Is there anyway I can achieve this without having to using an IFrame?

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HttpHandlers / Modules :: Regarding Http Modules Execution?

Jun 8, 2010

is httpmodules executed each and every time in request and response cycle ?? if Yes is it possible to disable a specific http module ??

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HttpHandlers / Modules :: Cache Images - Page Takes To Long Due To Images Not Caching?

Mar 31, 2010

I've been trying to get image caching working for the last 8 hours and I keep the same problem time and time again, I'm trying to cache Images at the moment and then when thats succesful, apply this to cache my js and css files. I have at the moment Sql Dependancy caching working on my dynamic pages but the page still takes to long due to images not caching.

What I have tried is going to IIS7 Management and adding HTTP Response Header for the images folder and setting various things for the cache control.i dont care how long it caches it on the client or on the proxy servers i just would like it to check when the file was modified and compare it with the one in the client or proxy cache and if they are different then fetch the new image which has been ftp up. i could solve this by changing the image name but the thing is the image name is generated when they are ftp'd to the site by an application and the name is a direct reference to the product so i cant change the name each time, as it would mean making a lot of otherpages accross the board.

so What i would like, is to set and expiry date of lets say 32 days or more on the images and then check to see if they have changed by date modified or some other way of checking(Etags maybe) I'm not sure, if they have changed on the server then redownload and recache them, I tried using post-check and pre-check together but that just permantly cached them, so when i change the image the only way it would display the new image is to just hit F5.

In Brief, how can i Cache images, on the client machine/ proxy cache and recache them when the modified date of the file has changed.

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HttpHandlers / Modules :: Redirect Shareware Download URL From A File To A Download Page?

Oct 13, 2010

I'm about to submit my pad file to multiple sharware sites but the pad file has to have a direct link to the download file and can't link to a download page which is what I would like to do, so I can track the traffic and get the downloader's email before allowing the download. I am running an ASP.NET site in VB. Is there a way to tell the web app to redirect to a specific aspx page when it receives a request for a specific file?

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HttpHandlers / Modules :: Redirect A Page From Http To Https Using Http Module Begin Request Handler?

Jul 15, 2010

i redirect a page from http to https using http module begin request handler .i am calling webservice using ajax but it is saying webserice not defined .which otherwise works fineits work fine when rediect page in page_load instead .but i need to add function for https to http in every page. i still not know why ajax is not working when i use http module for redirect

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HttpHandlers / Modules :: Generic Handler / Prevent Data From Being Written To Live Table Via The Live.aspx Page?

Jun 28, 2010

I am using a generic handler (indicator.ashx) to create a graphic that is overlayed from information from a table (called LIVE) from our SQL database. This is working very well and I am very happy with the results.

However I am having an undesirable issue where the query string that is used for this is also being accessed by another page (called ReceiveLive.aspx) which is populating our LIVE table with data when we don't want this. I have been able to track this issue down to our generic handler that seems to populate this table with data whenever the handler is accessed.

The query string that is used to access our graphic through our generic handler is
http://mydomain.com/indicator.ashx?ID=ABC001.

Our other page that writes data to our LIVE database used the query string
http://mydomain.com/live.aspx?ID=ABC001 which is normally only accessed by a small piece of software that sits on the users PC and sends the data when necessary.

My question is this: How do I prevent data from being written to our LIVE table via the Live.aspx page everytime a query string is processed by my indicator.ashx is accessed?

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Httphandlers And Http Modules?

Feb 7, 2011

How do we findout the whether the application is using any HTTPModules and httphandler in the applicaion?Is there anyway to findout from the url without checking the web.config file?

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