remove 'WWW' in ASP.NET MVC 1.0

Question

I am attempting to force the domain name to not use the \'www\'. I want to redirect the user if attempted. I have seen very little on an MVC solution. Is there anyway to harness

Answer 1

Implemented as an ActionFilter as that is MVC-like, and more explicit.

public class RemoveWwwFilterAttribute : ActionFilterAttribute
{
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        var req = filterContext.HttpContext.Request;
        var res = filterContext.HttpContext.Response;


        var host = req.Uri.Host.ToLower();
        if (host.StartsWith("www.")) {
            var builder = new UriBuilder(req.Url) {
                Host = host.Substring(4);
            };
            res.Redirect(builder.Uri.ToString());
        }
        base.OnActionExecuting(filterContext);
    }
}

Apply the ActionFilter to your controllers, or your base controller class if you have one.

For an introduction to Action Filters, see Understanding Action Filters on MSDN.

[RemoveWwwFilterAttribute]
public class MyBaseController : Controller