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 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 :: 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 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 :: Server Cannot Append Header After HTTP Headers Have Been Sent

Sep 3, 2010

Server cannot append header after HTTP headers have been sent

[Code]....

[Code]....

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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 :: Read Data Sent After A GET Request?

Oct 31, 2010

I'm in a situation where a GET request is made of my server without any content-length header. After the GET request is sent the client then sends a small chunk of data (8 bytes to be exact). It's imperative to note that this data is not meant to be treated as a request body. For this reason asp.net/iis ignores it. I cannot read it and the input stream says it has a length of 0. This is the correct behaviour!

What I need to do is somehow hook into the request processing pipeline early enough to read this data and somehow append it to the request (Items?) I don't know how to do this 'correctly'. I figure I should probably create an IHttpModule to check if the request is of the type that will have this data, then somehow read it.

How would I go about this? How would I be able to read this information in from the stream? I've tried adding an event handler to HttpApplication.BeginRequest but everything I try to read the stream fails. I've read that I could potentially add a custom header using reflection (this would allow me to add a content-length header) but this feels nasty and hacky - I presume there's just a place where I can hook in and handle the reading of the stream before passing it on for further processing.

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HttpHandlers / Modules :: Asynchronous Read From Handler?

Jan 16, 2010

I have found very strange problem with using asynchronous request. I wrote ASP.NET handler like follows.

[Code]....

Next, i write C# client application as follows.

[Code]....

This works very fine, s == "Test1".Now i want to make nonblocking call as follows.

[Code]....

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HttpHandlers / Modules :: Response.Cache.SetExpires Doesn't Work?

Mar 15, 2010

According to MSDN documentation, this is supposed to set the Cache header "Expires" to a certian value. A check of fiddler for the response from my handler indicates the Expires is being ignored. Is this a known bug? I see other posts where people have just given up with out an answer.

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HttpHandlers / Modules :: How To Read The Custom Http Header

Jul 23, 2010

I have a very simple query. I have added custom header to my website. Now I want to read the custom header. I am using IIS 6.0 on windows XP. I have already tried using using the Request.ServerVariables and and Request.header method. But none of them give me the custom header added to website.

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HttpHandlers / Modules :: Write The Response Stream Content To A File On Disk

Jan 20, 2011

I have an httpmodule and it has a handler for OnEndRequest. I am trying to write the HttpContext.Response.OutputStream to a file. I am trying to use the Read method of it. But when it is called the exception message i get is "Specified method is not supported". So i am not able to do what i want that is, write the response to a file on the disk. I am able to write the HttpContext.Request.InputStream to a file using its Read method which i do in a handler for OnBeginRequest.

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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 :: Context.Response.Output Vs Context.Response.Write()?

Jan 24, 2010

I have written simple HttpModule. context.Response.Output.Write is working fine. but not context.Response.Write().

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Web Forms :: Concept Of Request.Headers And Response.Headers In .NET?

May 27, 2010

explain to me the concept of Request.Headers and Response.Headers in ASP.NET? Under what scenarios you use Request.Headers and Response.Headers?

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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 :: 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 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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HttpHandlers / Modules :: Url To A Subdomain Is That Possible

Jul 2, 2010

I got a website [URL] and I want to redirect http://www.example.com/folder to http://folder.example.com so if
folder has a page called example1.aspx [URL]

It should be called in this way:

http://folder.example.com/example1.aspx Is that possible that using IIS 7 and asp.net 4.

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HttpHandlers / Modules :: What Is Httphandler In .net

Mar 3, 2010

what is httphandler?what is the use ?

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HttpHandlers / Modules :: URL Rewriting On IIS 7.0?

Apr 1, 2010

I have a HttpModule that rewrites the url:

eg: Folder/StaticPage.aspx?PageName=TestPage is re-written as

Folder/TestPage

This works fine on my local dev. machine on the Cassini server. But when its hosted in IIS (5.1 & 7.0) it fails to work, with the error as 404 Page Not Found.

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C# - HttpModule To Write Out JavaScript Script References To The Response

Mar 11, 2010

On my page in the Page_Load event I add a collection of strings to the Context object. I have an HttpModule that will fire EndRequest and retrieve the collection of strings. What I then do is write out a script reference tag (based on the collection of strings) to the response. The problem is that the page reads the script reference but doesn't retrieve the contents of the file (I imagine because this is occurring in the EndRequest event). I can't fire the BeginRequest event because I won't have access to the Context Items collection.

I tried to also registering an HttpHandler which Processes the request of the script reference but I can't access the collection of strings in the Context.Items from there.

[code]....

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