I have been in situations where I need to generate an absolute URL to a specific action in an ASP.NET MVC application. The main problem mostly lies in getting the “domain” part of the URL. The only way to do this is to examine the request URL. I came across a very nice method of doing this during an encounter with the dotnetopenid.
public static Uri GetBaseUrl(this UrlHelper url)
{
Uri contextUri = new Uri(url.RequestContext.HttpContext.Request.Url, url.RequestContext.HttpContext.Request.RawUrl);
UriBuilder realmUri = new UriBuilder(contextUri) { Path = url.RequestContext.HttpContext.Request.ApplicationPath, Query = null, Fragment = null };
return realmUri.Uri;
}
{
Uri contextUri = new Uri(url.RequestContext.HttpContext.Request.Url, url.RequestContext.HttpContext.Request.RawUrl);
UriBuilder realmUri = new UriBuilder(contextUri) { Path = url.RequestContext.HttpContext.Request.ApplicationPath, Query = null, Fragment = null };
return realmUri.Uri;
}
public static string ActionAbsolute(this UrlHelper url, string actionName, string controllerName)
{
return new Uri(GetBaseUrl(url), url.Action(actionName, controllerName)).AbsoluteUri;
}
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