I inject this service into my controllers.
public class LinkFactory : ILinkFactory
{
private readonly HttpRequestMessage _requestMessage;
private readonly string _virtualPathRoot;
public LinkFactory(HttpRequestMessage requestMessage)
{
_requestMessage = requestMessage;
var configuration = _requestMessage.Properties[HttpPropertyKeys.HttpConfigurationKey] as HttpConfiguration;
_virtualPathRoot = configuration.VirtualPathRoot;
if (!_virtualPathRoot.EndsWith("/"))
{
_virtualPathRoot += "/";
}
}
public Uri ResolveApplicationUri(Uri relativeUri)
{
return new Uri(new Uri(new Uri(_requestMessage.RequestUri.GetLeftPart(UriPartial.Authority)), _virtualPathRoot), relativeUri);
}
}