Router Port Forwarding and HttpContext.Current.Request.Url

Question

Here's the scenario. We have a router that port forwards requests for our different test sites. For example http://www.ourSite.com:8051 forwards from the router to a web server that is on port 80. The test web sites are virtual directories of one web site running on IIS6 (Windows Server 2003).

Part of our application send out e-mails that use a base url to build some links in the application. Here's the base url being built in our on application start:

siteBaseUrl = string.Format("{0}://{1}{2}",
                HttpContext.Current.Request.Url.Scheme,
                HttpContext.Current.Request.Url.Authority,
                HttpContext.Current.Request.ApplicationPath.TrimEnd('/'));

So let's say one of our tests site's looks like this, http://www.ourSite.com:8051/client1. I would expect siteBaseUrl to look like this, http://www.ourSite.com:8051/client1, when in fact it ends up looking like this http://www.ourSite.com/client1 (I tried finding a question like this on StackOverflow but found none. Maybe I wasn't searching with the right keywords, or I need more coffee. Any help on this matter would be greatly appreciated.

Answer 1

If the port number is getting stripped away by your router, you could always use javascript to grab the url and just send it to the server.

Answer 2

The HttpContext.Current.Request.Url is based on the resource requested from IIS, it doesn't represent the Client request Url. You can however use the Host property from the HTTP header.

siteBaseUrl = string.Format("{0}://{1}{2}",
                HttpContext.Current.Request.Url.Scheme,
                HttpContext.Current.Request.Headers["host"],
                HttpContext.Current.Request.ApplicationPath.TrimEnd('/'));