ASP.NET: Get *real* raw URL

Question

In ASP.NET, is there any way to get the real raw URL?

For example, if a user browse to "http://example.com/mypage.aspx/%2F", I would like to be able to get "http://example.com/mypage.aspx/%2F" rather than "http://example.com/mypage.aspx//".

I would of course like a clean way to do it, but I can live with a hacky approach using reflection or accessing obscure properties.

At the moment, I try to use the uri in the Authorization-header (which works), but I cannot rely on that always being there.

EDIT:

What I really want to do is to be able to distinguish between "http://example.com/mypage.aspx/%2F" and "http://example.com/mypage.aspx/%2F%2F".

It looks like ASP.NET first converts "%2F%2F" into "//" and then converts the slashes into a single slash.

So just re-encoding it is not going to work.

Answer 1

I wasn't able to test this because it only works in IIS and not the ASP.NET Development Server that is part of Visual Studio, but try:

Request.ServerVariables[ "HTTP_URL" ]

Answer 2

The following code works for me:

IServiceProvider serviceProvider = (IServiceProvider)HttpContext.Current;
HttpWorkerRequest workerRequest = (HttpWorkerRequest)serviceProvider.GetService(typeof(HttpWorkerRequest));
string realUrl = workerRequest.GetServerVariable("HTTP_URL");

Note that this only works when running on the IIS and not under f.x. ASP.NET Development Server!

Thanks to Lucero for the answer in another thread and Zhaph for pointing me to the thread.