How to log HTTP requests coming into IIS

Question

I run IIS 5 on my dev machine. I have an asp.net 3.5 web service running on it which I'm calling from a different web app running on the same server. My service is returning an error 500 Internal Server error and I'm troubleshooting it. My request is being sent via a System.Net.HttpWebRequest object and it looks valid from the client's perspective.

I'd like to see the raw incoming HTTP request from the server's perspective. Since the service is being called on loopback, I can't use Wireshark to see it.

IIS Logging shows me the request header but not the post content.

Any suggestions on how I could see the full raw incoming HTTP request in IIS?

Thanks

Simon West · Accepted Answer · 2013-03-19 10:36:22Z

3

I would think you want to add an HTTPModule for logging. Here's a pretty good article on ASP.NET modules and handlers:

That way, when you want to disable logging, you can just remove/comment it from your web.config file.

edited Mar 19, 2013 at 10:36

Simon West

3,7881 gold badge28 silver badges28 bronze badges

answered Apr 13, 2009 at 16:35

Dave Nichol

1813 silver badges8 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Maxam · Accepted Answer · 2009-04-13 16:41:32Z

3

Have you tried using Fiddler? Just use your machine name instead of localhost.

answered Apr 13, 2009 at 16:41

Maxam

4,0512 gold badges27 silver badges25 bronze badges

2 Comments

srmark Over a year ago

Fiddler works if you're querying from a browser. Webservice calls from within my own apps won't work.

kͩeͣmͮpͥ ͩ Over a year ago

@Mr Greieves, it takes a little bit of extra work, but you can manually configure the proxy settings for your webservice calls.

Adel Mourad · Accepted Answer · 2023-02-26 14:33:25Z

2

I'm able to log request/response with many data (request body included for http post etc...), all http verbs included (ex: get, post) using IIS Failed Request Tracing

The request does not necessarily needs to fail to be logged as you can specify there any http status like 200, 401 etc or just all (enter 100-999).

You can also just log requests with a specific URL

I'll later implement a custom http module for more control.

Thanks

answered Feb 26, 2023 at 14:33

Adel Mourad

1,57317 silver badges16 bronze badges

Comments

AaronS · Accepted Answer · 2009-04-13 16:36:46Z

0

Your best bet is to run each of your web apps on a different port, and then use something like Fiddler to create a proxy for the port you want to watch. This will monitor all traffic to and from your specific application.

answered Apr 13, 2009 at 16:36

AaronS

7,7445 gold badges34 silver badges57 bronze badges

Comments

Dr. · Accepted Answer · 2017-10-31 15:50:05Z

Here is code of custom HTTP module we use to log HTTP POST request data.

using System;
using System.Web;

namespace MySolution.HttpModules
{
    public class HttpPOSTLogger : IHttpModule
    {

        public void Dispose()
        {
        }

        public void Init(HttpApplication context)
        {
            context.BeginRequest += new EventHandler(context_BeginRequest);
        }

        private void context_BeginRequest(object sender, EventArgs e)
        {
            if (sender != null && sender is HttpApplication)
            {
                var request = (sender as HttpApplication).Request;
                var response = (sender as HttpApplication).Response;

                if (request != null && response != null && request.HttpMethod.ToUpper() == "POST")
                {
                    var body = HttpUtility.UrlDecode(request.Form.ToString());
                    if (!string.IsNullOrWhiteSpace(body))
                        response.AppendToLog(body);
                }
            }
        }

    }
}

Do not forget to register it in web.config of you application.

Use system.WebServer section for IIS Integrated Model

<system.webServer>
    <modules>
      <add name="HttpPOSTLogger" type="MySolution.HttpModules.HttpPOSTLogger, MySolution.HttpModules" />
    </modules>
</system.webServer>

Use system.web section for IIS Classic Model

<system.web>
    <httpModules>
        <add name="HttpPOSTLogger" type="MySolution.HttpModules.HttpPOSTLogger, MySolution.HttpModules"/>
    </httpModules>
</system.web>

IIS log Before applying module:

::1, -, 10/31/2017, 10:53:20, W3SVC1, machine-name, ::1, 5, 681, 662, 200, 0, POST, /MySolution/MyService.svc/MyMethod, -,

IIS log After applying module:

::1, -, 10/31/2017, 10:53:20, W3SVC1, machine-name, ::1, 5, 681, 662, 200, 0, POST, /MySolution/MyService.svc/MyMethod, {"model":{"Platform":"Mobile","EntityID":"420003"}},

Full article:

https://www.codeproject.com/Tips/1213108/HttpModule-for-logging-HTTP-POST-data-in-IIS-Log

Collectives™ on Stack Overflow

How to log HTTP requests coming into IIS

5 Answers 5

Comments

2 Comments

Comments

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

5 Answers 5

Comments

2 Comments

Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related