title: What is the equivalent of HttpContext.GetOwinContext() from a Hub?
body: <p>I made a OWIN SignalR server self-hosted in a console app.</p>
  
  <p>From an example that is hosting SignalR in a ASP.NET MVC application instead (in IIS), I see this line of code:</p>
  
  <pre><code>var authenticateResult = await HttpContext.GetOwinContext().Authentication.AuthenticateAsync("ExternalCookie");
  </code></pre>
  
  <p>I do not have access to <code>HttpContext</code> in my console app (and do not want to reference the System.Web.Mvc assembly if possible). What would be the equivalent of <code>HttpContext.GetOwinContext()</code> in my SignalR hub class?</p>