.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Register
 
Win Surprise Gifts!!!
Congratulations!!!


Top 5 Contributors of the Month
MarieAdela
Imran Ghani
Post New Web Links

Hooking into the IIS pipeline before request content is read

Posted By:      Posted Date: April 10, 2011    Points: 0   Category :ASP.Net
 

In our ASP.NET application, we're having a problem with file uploads.  In our web.config, under system.webServer/security/requestFiltering/requestLimits, we set maxAllowedContentLength to 16777216 (16 MB), and under system.web/httpRuntime, maxRequestLength is set to 16384 (also 16 MB).  IIS seems to do the request filtering just fine unless a really huge file is uploaded.  For example, when I upload a 2.27 GB file, IIS doesn't reject it immediately.  Instead, it allows the browser to upload the entire file before finally erroring out (with an odd 400 Bad Request "ASP.NET detected invalid characters in the URL." error).

This looks to me to be a bug with IIS 7.5.  We've tried to work around it by creating an HttpModule that can inspect the size of the upload before the upload actually takes place, but it seems like the upload is always taking place before the BeginRequest event is triggered.  Is there any way for us to look into the IIS pipeline at an earlier point than what HttpModule gives us so we can bypass the ludicrous upload behavior exhibited by IIS?





View Complete Post


More Related Resource Links

Hooking into the IIS pipeline before request content is read

  

In our ASP.NET application, we're having a problem with file uploads.  In our web.config, under system.webServer/security/requestFiltering/requestLimits, we set maxAllowedContentLength to 16777216 (16 MB), and under system.web/httpRuntime, maxRequestLength is set to 16384 (also 16 MB).  IIS seems to do the request filtering just fine unless a really huge file is uploaded.  For example, when I upload a 2.27 GB file, IIS doesn't reject it immediately.  Instead, it allows the browser to upload the entire file before finally erroring out (with an odd 400 Bad Request "ASP.NET detected invalid characters in the URL." error).

This looks to me to be a bug with IIS 7.5.  We've tried to work around it by creating an HttpModule that can inspect the size of the upload before the upload actually takes place, but it seems like the upload is always taking place before the BeginRequest event is triggered.  Is there any way for us to look into the IIS pipeline at an earlier point than what HttpModule gives us so we can bypass the ludicrous upload behavior exhibited by IIS?



HTTP Pipelines: Securely Implement Request Processing, Filtering, and Content Redirection with HTTP

  

ASP.NET is a flexible and extensible framework for server-side HTTP programming. While most people think of ASP.NET in terms of pages served, there is a lower-level infrastructure sitting beneath this page model. The underlying plumbing is based on a pipeline of app, module, and handler objects. Understanding how this pipeline works is key if you want to get the most out of ASP.NET as an HTTP server platform, while making your process more efficient, and keeping your server secure. This article introduces the architecture of the pipeline and shows how you can use it to add sophisticated functionality to an ASP.NET-based app.

Tim Ewald and Keith Brown

MSDN Magazine September 2002


Request.PathInfo losing Master Page content and CSS link

  

Hi All-

 

I'm using Request.PathInfo to response.redirect as user to a different page ( based on the content after .aspx ).  It redirect just fine however, once redirected, the page loses all content from the master page and the CSS link.  I've searched and can't find an answer. 

Does anyone have a solution for this?


Read an XML file, setting uname/pw, Accept, Content-Type

  
Hi; To read some REST XML data we need to set the username, password, and tell it for the http request Accept: application/xml Content-Type: application/xml Is there a sample anywhere showing how to do this? thanks - daveVery funny video - Reporting as a Metaphor

SharePoint read/recognize a Digital Signature in Word (XML Content Control Mapping)?

  
I am using Content Control Mapping to pull certain fields from a Word Document and include it as columns when a document is uploaded into a Document Library. We're using MOSS 2007 and Word 2007. It is required that the user digitally signs the document before uploading.  Is there a way to get the signature to appear as a column in a similar fashion?  I'm new to this mapping business, and Google hasn't been much help. I realize I could use the Collect Signatures workflow, but that seems cumbersome to 1) have the user submit it, 2) have an admin open each document and start the workflow and 3) have the user THEN sign the document.  That's more steps than simply manually opening and verifying digital signatures. I figure I'm missing something obvious here.  Any help or ideas would be appreciated.

asp.net vs WCF request pipeline in IIS 500 error

  
Using .net 4.0 , IIS 7.4 Windows Server 2008 R2 I have an asp.net application that sits between WCF web services and routes the requests according to some rules. The iis error page setting is set to 'Detailed errors for local requests and custom ....' the asp.net routing service calls the WCF service using HttWebRequest object. I am getting an iis html error response when wcf service throws a fault exception. but i get a proper IIS 500 error with a proper soap response when i call the service directly (without the router) I know i can fix it by changing IIS error page setting, but i dont want to do that since it would expose my non wcf errors. question is is there a difference in how iis treats wcf requests vs asp.net request when it comes to 500 errors also this used to work in IIS 6, how to get this behavior back in iis 7

How to open and read Word content using Open XML SDK 2.0 for Microsoft Office?

  
Hello, I've built a component to read a Word Document and open it in silverlight, so I'm interested in Open XML SDK 2.0 for Microsoft Office, I read the document about this and some several examples, they're just talk about read the Headers, Comment,...and also I want to read the Word content.   Please help me, thank you.

External Content Type - Read List Operation - "Cannot find a collection element of a supported type.

  

I'm trying to define External Content Type Operations for an External Content Type. I can add a Connection, Type "WCF Service" no problem. And I can define a "New Read Item Operation" using that connection.

But I can't define a "Read List Operation". I get the following error message, in the Return Parameter Configuration: "Cannot find a collection element of a supported type..." it goes on to say - see the help documentation for supported types. I can't find any help documentation on this.

I've tried returning different types in the provider web service but keep getting the same error. What are the supported types the web service can return?

The reading I've done suggests that you can connect to a non-MS web service using a connection type of "WCF Service". Is this correct? If it is what's the best soap format the web service provider should use - Doc/Literal?

Thanks,

Glen


Articles/Links on Asp.Net pipeline and internal request processing architecture

  

I am looking details on the internal working of asp.net architecture. The topics need to include the following:

  1. Asp.Net Thread/Application Pools
  2. HttpRuntime
  3. HttpApplication - When and how it is set up
  4. How HttpContext is set up
  5. How objects can passed along the pipeline using HttpContext.Current.Items
  6. Why does modification of static variables requires locks in ASP.NET (advanced)
  7. IIS 7 Integration Mode

I'm looking for a very detailed description of Asp.Net internals and how request processing happens under the hood.

Read Only Documents Content Querry Webpart

  

When we  open a document from the link of a  Content Querry Webpart in the welcome page of the site , it ‘s a read only document,We don't have the edit button in the word document, so the context is lost, we have to go to the Document Library , open it form their to have a normal behavior and the possibility to edit and save the document.

is there any way to open a document from Content Querry Webpart and be able to modify it?


ABT

Sending document to Content Organizer with rule applied generates GET request error

  

When I attempt to send a document to a Content Organizer through a custom send to location configured in Central Admin I am getting the following error.

Updates are currently disallowed on GET requests.  To allow updates on a GET, set the 'AllowUnsafeUpdates' property on SPWeb.

I run into this problem with content types that have rules defined for them. So if there is no rule, it gets sent to the drop off library. If there is a rule, I get the error in the browser.

I am getting these errors in the Event Viewer:

*Error loading and running event receiver Microsoft.Office.DocumentManagement.DocumentSets.DocumentSetEventReceiver in Microsoft.Office.DocumentManagement, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c. Additional information is below.

: Object reference not set to an instance of an object.

*The http://<domain>/site/_vti_bin/OfficialFile.asmx site is not properly configured for this request.

 

Any ideas?


How do I read data sent after a GET request?!

  

Hey guys,

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.

I'm in desperate need of your he

Content deployment job failed.The remote upload Web request failed.

  

now i use Sharepoint 2007 SP2 and i have a issue when i deploy site to destination server.

i have error message follows.

 

"Content deployment job <name> failed.The remote upload Web request failed."

 

don't have any error message in this issue.

 

now i check 3 thing 

1. maxRequestLength="10240000" in "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\TEMPLATE\ADMIN\Content Deployment"

2. <requestLimits maxAllowedContentLength="1258291200" /> and <httpRuntime maxRequestLength="512000" /> in web.config of my sharepoint web addplication

3. same 2 in web.config of Central Admin.

4. now, disk space ok.

5. Maximum upload size: in general setting of each SharePoint Web i set 100mb

 

but i still have this issue.

please help me.


Read The Zip File Content In C#

  

Hi Techies

How to read the zip file content in C# without using Third party component, only i have to use existing C# classes.

For Example,

Test.zip file contain Sample1.txt,Sample2.pdf,Sample3.doc file in it, i want to read the files name within the test.zip file in C#,

Please guide me,

thanks in advance.


Content deployment job failed. The remote upload Web request failed.

  

Error in Content Deployment

Farm Topology

Staging  Envirnment

OS - Windows Server 2008 64 bit Edition
MOSS Stand alone system - 64 bit with SP2

 

Production Farm Environment 

1 Moss WFE Server(64 bit with SP2)
1 Moss App Server(64 bit with SP2),
1 Sql Server
OS - Windows Server 2008 64 bit in all the three servers


Error Scenario

 

Im doing a full content deployment from the staging environment to the production environment. The staging environment and the production environment are in different domains.

I made entries in the host file in the source server(staging) and Iam able to browse the central admin in app server and blank site in webserver via browser by this I assume that the ports are opened and the host names are verified.

In destination server (prod env)
In centraladmin -> operations -> Content Deployment Settings I made, Accept incoming content deployment jobs
I chose app server to be the import server as in the drop down it showed me only the app server name
I chose not to encrypt option
I

_AppStart.cshtml: can't get response/request to write/read cookie?

  

Hi.
currently, I'm setting up an HttpCookie in a "master" page (layout) and check wiehter I need to send the user back to some specific page depending on the value, if it has expired, etc.
Because the master layout page is not the 1st "page" code to process, I can sometime get runtime error because the cookie is already expired.

I thought I would move this part to the _AppStart.cshtml file but I can't get to read/write (Response/Request) the cookie there?

Should I do this in a _PageStart.cshtml in all my folders rather?

Thanks


SharePoint Tutorial - Content Types

  
SharePoint content types provide users with a way to manage and organize content in a more meaningful way. It's a reusable of settings you want to apply to a particular type of document in a library or item in a list.
Categories: 
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend