Question

I am trying to add some rewrite rules using UrlRewriter.net to my ASP.NET web app. The problem is that I am a Regex newbie, and provided examples are pretty elementary.

My question is: how do I differentiate urls which contain GET query parameters?

I.e., if I add this rule:

<rewrite url="~/([.+])" to="~/$1.aspx" />

It will rewrite www.example.com/products to www.example.com/products.aspx, but it will also rewrite www.example.com/products?id=1 to www.example.com/products?id=1.aspx.

Problem actually only happens when using a login control, since it creates an url similar to www.example.com/login?returnUrl=/members, and I am not sure how to rewrite it.

What I would like is:

• to rewrite www.ex.com/test to www.ex.com/test.aspx, and
• to rewrite www.ex.com/test?page=dummy to www.ex.com/test.aspx?page=dummy.aspx

Thanks a lot!

[edit] And btw I still haven’t figured how to turn on console debugging for UrlRewriter. I have added the “register logger” section to the config file, but VS output windows shows nothing. That would be helpful, also.

Answer 1

Use the following regex for the match:

"~/([^\?]+)(.*)?"

This way you match everything until the question mark – one or more chars that aren’t a question mark.

Then $1 holds the path part, and $2 everything from the “?” until the end of the URL.

Notice the question mark after the second grouping parentheses – this means that you don’t require that part, so www.ex.com/test will also work.