ASP.NET MVC URL generation extensibility points

Question

What are extensibility points of URL generation in ASP.NET MVC?

1. Routes - virtual path depends on it
2. ???

Addendum 1
Particularily, I need to control not only path part of URL but the host also. And I'd like to embed my generation logics into MVC Framework so that any call to standard Html.ActionLink method would involve my logics. It would be perfect. However, investigating MVC sources I'm desperate to achieve my goal with an easy way.

Answer 1

Routes is pretty much where it's at. Remember, though, that you can subclass Route and provide your own implementation that does not use key/value URI templates.

There's nothing stopping you from writing your own solution from the ground up, but there's not much point since there's already an extensible foundation for you to work with.

Answer 2

Routing extensibility points

• Routes
• Route constraints
• Route handlers

In your particular case, you will have to write your own route that will populate additional RouteData items related to host. Parsing your URL will be totally on you.

"{host}/{controller}/{action}"

Maybe also create your custom route handler that will make host parameter mandatory. But that already depends on your particular needs.

Edit

I guess that this article about domain routing may be of some help to you. It looks preety straight forward and uncompicated.