fixes #789 - Security Issue: API allows access to any folder of the PC running MediaBrowser

MediaBrowser.Controller/Net/IAuthorizationContext.cs

@@ -0,0 +1,14 @@
+using ServiceStack.Web;
+
+namespace MediaBrowser.Controller.Net
+{
+    public interface IAuthorizationContext
+    {
+        /// <summary>
+        /// Gets the authorization information.
+        /// </summary>
+        /// <param name="requestContext">The request context.</param>
+        /// <returns>AuthorizationInfo.</returns>
+        AuthorizationInfo GetAuthorizationInfo(IRequest requestContext);
+    }
+}