Solved

IHttpModule not getting called

Posted on 2009-07-09
6
566 Views
Last Modified: 2013-11-30
Put simply, is there any reason why an IHttpModule would not get called for requests for script files?  My module is set to gzip compress all JSON responses, and also all script files.  It works perfectly locally, but when I deploy it to my shared hosting account, it **only works for the JSON responses**.

Is there some IIS setting that they might have to cause requests for these files to bypass my HttpModule somehow?

Thanks!
0
Comment
Question by:ARACK04
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
6 Comments
 

Author Comment

by:ARACK04
ID: 24813775
Also, here's the complete code for my module:
using System;
using System.IO;
using System.IO.Compression;
using System.Globalization;
using System.Web;
 
 
public class JsonCompressionModule : IHttpModule {
    public JsonCompressionModule() {
    }
 
    public void Dispose() {
    }
 
    public void Init(HttpApplication app) {
        app.PreRequestHandlerExecute += new EventHandler(Compress);
    }
 
    private void Compress(object sender, EventArgs e) {
        HttpApplication app = (HttpApplication)sender;
        HttpRequest request = app.Request;
        HttpResponse response = app.Response;
 
        if (request.ContentType.ToLower(CultureInfo.InvariantCulture).StartsWith("application/json") ||
            request.Url.ToString().Contains(".js")) {
 
            if (!((request.Browser.IsBrowser("IE")) && (request.Browser.MajorVersion <= 6))) {
                string acceptEncoding = request.Headers["Accept-Encoding"];
 
                if (!string.IsNullOrEmpty(acceptEncoding)) {
                    acceptEncoding = acceptEncoding.ToLower(CultureInfo.InvariantCulture);
 
                    if (acceptEncoding.Contains("gzip")) {
                        response.Filter = new GZipStream(response.Filter, CompressionMode.Compress);
                        response.AddHeader("Content-encoding", "gzip");
                    } else if (acceptEncoding.Contains("deflate")) {
                        response.Filter = new DeflateStream(response.Filter, CompressionMode.Compress);
                        response.AddHeader("Content-encoding", "deflate");
                    }
                }
            }
        }
    }
}

Open in new window

0
 
LVL 13

Accepted Solution

by:
crazyman earned 500 total points
ID: 24814294
Script files are static content, and wont be mapped in iis to the asp.net runtime, therefore the request will never hit asp.net let alone your HttpModule.

You may append .js.aspx and they will come through asp.net but you will need to work your handler into mapping that to the correct phyical file...
0
 
LVL 13

Expert Comment

by:crazyman
ID: 24814332
This window in IIS controls what file extensions map to what, you can add to these as you wish.
IIS.gif
0
PeopleSoft Has Never Been Easier

PeopleSoft Adoption Made Smooth & Simple!

On-The-Job Training Is made Intuitive & Easy With WalkMe's On-Screen Guidance Tool.  Claim Your Free WalkMe Account Now

 

Author Comment

by:ARACK04
ID: 24814412
Genius, thanks!

Why did it work in localhost though?  Are requests through localhost not capable of knowing what's static, and just send everything through the ASP.NET runtime?
0
 

Author Comment

by:ARACK04
ID: 24814522
Instead of .js.aspx, couldn't I just add .js to the extensions handled by .NET directly?  Also, if I did that, would it still work for requests with a querystring added on, like

foo.js?ver=1.6    

I would assume so since requests like that still work for .aspx files.

Thanks for putting up with this simple (probably stupid) question!
0
 
LVL 13

Expert Comment

by:crazyman
ID: 24815051
It works on localhost because the development server in visual studio routes all traffic through the runtime.

You could indeed map .js to asp.net and handle them there.
0

Featured Post

Secure Your WordPress Site: 5 Essential Approaches

WordPress is the web's most popular CMS, but its dominance also makes it a target for attackers. Our eBook will show you how to:

Prevent costly exploits of core and plugin vulnerabilities
Repel automated attacks
Lock down your dashboard, secure your code, and protect your users

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
asp.net mvc5 6 33
Web Site Administration Tool - Security Questions 2 35
Move WSUS to Server 2016 3 37
Javascript function 3 12
For many of us, the  holiday season kindles the natural urge to give back to our friends, family members and communities. While it's easy for friends to notice the impact of such deeds, understanding the contributions of businesses and enterprises i…
I had an issue with InstallShield not being able to use Computer Browser service on Windows Server 2012. Here is the solution I found.
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

732 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question