Asp.net mvc 301 redirect from www.domain.com to domain.com

by

I accept that doing this at application level is non-desirable as per the comments to the question.

Installing the HTTP Redirect feature in IIS7 is the best way to do this.

In our case, other constraints force us to do this at application level.

Here is the code that we use in global.asax to perform the redirect:

    private static readonly Regex wwwRegex = 
        new Regex(@"www\.(?<mainDomain>.*)",
                  RegexOptions.Compiled
                      | RegexOptions.IgnoreCase 
                      | RegexOptions.Singleline);

    protected void Application_BeginRequest(Object sender, EventArgs e)
    {
        string hostName = Request.Headers["x-forwarded-host"];
        hostName = string.IsNullOrEmpty(hostName) ? Request.Url.Host : hostName;
        Match match = wwwRegex.Match(hostName);
        if (match.Success)
        {
            string mainDomain = match.Groups["mainDomain"].Value;
            var builder=new UriBuilder(Request.Url)
                            {
                                Host = mainDomain
                            };
            string redirectUrl = builder.Uri.ToString();
            Response.Clear();
            Response.StatusCode = 301;
            Response.StatusDescription = "Moved Permanently";
            Response.AddHeader("Location", redirectUrl);
            Response.End();
        }
    }

More Related Contents:

  1. How do I redirect to the previous action in ASP.NET MVC?
  2. How do I get the referrer URL in an ASP.NET MVC action?
  3. Redirect to external URI from ASP.NET MVC controller
  4. Redirecting to specified controller and action in asp.net mvc action filter
  5. How to redirect HTTP to HTTPS in MVC application (IIS7.5)
  6. Redirect to action and need to pass data
  7. Why LINQ to Entities does not recognize the method ‘System.String ToString()?
  8. Plug-in architecture for ASP.NET MVC
  9. How and where to define an environment variable on Azure
  10. ASP.NET MVC – How exactly to use View Models
  11. Where can I find a list of escape characters required for my JSON ajax return type?
  12. ASP.NET MVC Forms Authentication + Authorize Attribute + Simple Roles
  13. Error Handling in ASP.NET MVC
  14. How to use ASP.NET MVC and AngularJS routing?
  15. ASP.NET MVC – HTTP Authentication Prompt
  16. ASP.NET Core : Synchronous operations are disallowed. Call WriteAsync or set AllowSynchronousIO to true instead
  17. How to add Date Picker Bootstrap 3 on MVC 5 project using the Razor engine?
  18. MVC ViewBag Best Practice [closed]
  19. Fat model / thin controller vs. Service layer [closed]
  20. DataAnnotations dynamically attaching attributes
  21. Why should I use @Url.Content(“~/blah-blah-blah”)?
  22. ASP MVC: When is IController Dispose() called?
  23. Getting the name of the controller and action method in the view in ASP.Net MVC
  24. ASP.NET MVC 3 – redirect to another action
  25. Ajax Pagination in PagedList.MVC using partial Page
  26. How to integrate IoC Membership provider with ASP.NET MVC
  27. Caching ChildActions using cache profiles won’t work?
  28. Asp.net core MVC post parameter always null
  29. MVC 4 how to validate a non-US date with client validation?
  30. Decimal values with thousand separator in Asp.Net MVC

Leave a Comment