IIS 7.5 HttpModule - Setting Response.Filter Results In Chunked Encoding?
Feb 8, 2011
I'm trying to create a HttpModule that changes the Response.Filter like so(for this demonstration just set the filter back to itself):
public class ContentTrafficMonitor : IHttpModule
{
public void Init( HttpApplication context )
{
context.BeginRequest += OnBeginRequest;[code]....
Doing so sets the transfer encoding of the response to chunked, rather than using the Content-Length header.If I remove the line where the Response.Filter is set, the response does have the Content-Length header. Our application depends on the Content-Length header, is there any way to prevent this behavior?
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Oct 7, 2010
I'm running ASP.NET on an IIS6 server. Right now the server is set up to compress dynamically generated content, mainly to reduce the page size of ASPX files that are being retrieved.
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Response.Clear();
Response.Buffer = true;
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The download itself works perfectly. However, the person downloading the file doesn't get a progress bar, which is incredibly annoying.
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Mar 11, 2010
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[code]....
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Jan 23, 2010
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Aug 10, 2010
I'm using Response.Filter in order to implement stream compression in accordance with HTTP Request Header Accept-Encoding
Here's the important stuff:
if (AcceptEncoding.Contains("deflate") || AcceptEncoding == "*")
{
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}
By and large this works as intended. However, I'm in a situation where I'm using an ActionResult on an MVC Controller to serve up files to the user agent:
Response.Clear();
Response.Headers["Content-Type"] = contentType;
Response.Headers["Content-Length"] = contentLength;
if (Request.QueryString["dl"] == "1")
{
Response.Headers["Content-Disposition"] = "attachment; filename=" + fileInfo.Name;
}
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To be more exact, the action method returns new EmptyResult() after the Response.TransmitFile() call. This works exactly as intended without the Response.Filter modification.
In this situation, the response entity reaches the user agent garbled and unintelligible. FireFox's Poster addon shows empty entities or jumbled entities coming back.
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[Code]....
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[Code]....
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[Code]....
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[Code]....
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Apr 16, 2010
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Mar 29, 2010
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Feb 17, 2010
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[Code]....
[Code]....
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Mar 30, 2011
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Jan 28, 2011
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I have a Date parameter, just 1.
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</FilterValues>
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Nov 22, 2010
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<head runat="server">
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<asp:ContentPlaceHolder ID="head" runat="server" />
</head>
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<asp:Content runat="server" ContentPlaceHolderID="content">
<%
MasterPage master = Master as MasterPage;
master.PageName = "Log in";
%>
</asp:Content>
And the property PageName is coded thusly:
private string _pageName;
public string PageName
{
get
{
return _pageName;
}
set
{
_pageName = value;
litTitle.Text = _pageName;
}
}
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Jan 4, 2010
I have written a web mailer that can send and receive emails and display them on a webpage.I have a problem displaying special characters though. Like Russian, and Greek and chinese.I am using openpop.net and I can get the encoding of the incoming email as one of my variables.Thing is, how do I display it? Do I set the content encoding of the whole page to what that specific email encoding is?I've got it UTF-8 at the moment and I get garbage.
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Aug 22, 2010
I have a calendar that can have multiple dates non sequentially selected. I have a gridview on the page with a sqldatasource control bound to it.
Again, I have already built the events calendar with the ability to select multiple dates... now I just want to show those detailed records below the calendar for only the dates selected.
How do I filter the records to only get the records of the SelectedDates of the Calendar control.
This has to be done dynamically in the code behind.
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Jan 5, 2010
Im pulling out a text field from the database which has and 's in it for line breaks. Which I have left there for pupose of being able to edit the fields later on.
So when i try to display the text I need to replace them which I have done with:
[Code]....
Simple enough. Only when I run the page the source code I get for it is:
<br />
So it seems its not encoding the < as a encode but into the form <
Does anyone know how to stop this happen. Or a method around it?
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Dec 27, 2010
In order to support a legacy application that's in the field, I need my ASP.NET MVC app to return an empty response that also has a Content-Type. One of IIS, ASP.NET, or ASP.NET MVC is removing my Content-Type when I send back a null response. Is there any way around this? (While not requiring an empty response with a set Content-Type would obviously be the ideal solution, the clients are already out there, and many of them cannot be upgraded.)
EDIT: Since there was a request for code: I'm proxying the request from the new web application to the one that older clients rely on. To do this, I have a subclass of ActionResult, called LegacyResult, that you can simply return for those methods that need to be handled by the old software. This is the relevant part of its code:
public override void ExecuteResult(ControllerContext context)
{
using (var legacyResponse = GetLegacyResponse(context))
{
var clientResponse = context.HttpContext.Response;
clientResponse.Buffer = false;
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if (legacyResponse.ContentLength >= 0) clientResponse.AddHeader("Content-Length", legacyResponse.ContentLength.ToString());
var legacyInput = legacyResponse.GetResponseStream();
using (var clientOutput = clientResponse.OutputStream)
{
var rgb = new byte[32768];
cb;
while ((cb = legacyInput.Read(rgb, 0, rgb.Length)) > 0)
{
clientOutput.Write(rgb, 0, cb);
}
clientOutput.Flush();
}
}
}
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EDIT 2: Poking around with Reflector reveals that, if headers have not been written at the time that HttpResponse.Flush is called, then Flush writes out the headers itself. The problem is that it only writes out a tiny subset of the headers. One of the missing ones is Content-Type. So it seems that, if I can force headers out to the stream, I can avoid this problem.
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Aug 4, 2010
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If what I'm saying is correct, why is it this way? Shouldn't the cookie be available in the following request? Shouldn't the immediate access to Request.Cookies(... be null?
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