Getting Absolute URL fron an ASP.NET MVC Action

Question

This probably is a dummy question but I cannot find a clear indication. I have a POCO class in a MVC3 web application whose only purpose is managing the backup of some files

Answer 1

I wrote a helper class for this, for MVC 5... It's pretty flexible, and is particularly useful if you need this functionality when you aren't inside a controller. You should be able to drop it right into a project and go.

As Meligy pointed out, the key is to include the protocol. Here I have it hard coded as http, so if you want to use SSL that might need to become a bit more flexible.

public class AbsoluteUrlHelper
{
    /// 

    /// Creates an absolute "fully qualified" url from an action, and assumes the current controller.
    /// 
    /// 
    public static string GetAbsoluteUrl(string action, object routeValues = null)
    {
        var urlHelper = new UrlHelper(HttpContext.Current.Request.RequestContext);
        var values = urlHelper.RequestContext.RouteData.Values;
        var controller = values["controller"].ToString();

        return GetAbsoluteUrl(action, controller, urlHelper, routeValues);
    }

    /// 

    /// Creates an absolute "fully qualified" url from an action and controller.
    /// 
    public static string GetAbsoluteUrl(string action, string controller, object routeValues = null)
    {
        var urlHelper = new UrlHelper(HttpContext.Current.Request.RequestContext);

        return GetAbsoluteUrl(action, controller, urlHelper, routeValues);
    }

    /// 

    /// Creates an absolute "fully qualified" url from an action and controller.
    /// 
    public static string GetAbsoluteUrl(string action, string controller, UrlHelper urlHelper, object routeValues = null)
    {
        var uri = urlHelper.Action(action, controller, routeValues, "http");

        return uri;
    }
}