XbmcProvider will use HttpProvider.

Added DownloadString for HttpProvider that allows for authenticaion (required for XBMC with username/password).

NzbDrone.Core/Providers/HttpProvider.cs

@@ -1,12 +1,43 @@
-using System.Net;
+using System;
+using System.Net;
+using NLog;
 
 namespace NzbDrone.Core.Providers
 {
     internal class HttpProvider : IHttpProvider
     {
+        private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
+
         public string DownloadString(string request)
+        {
+            try
             {
                 return new WebClient().DownloadString(request);
             }
+            catch (Exception ex)
+            {
+                Logger.Warn("Failed to get response from: {0}", request);
+                Logger.TraceException(ex.Message, ex);
+            }
+
+            return String.Empty;
+        }
+
+        public string DownloadString(string request, string username, string password)
+        {
+            try
+            {
+                var webClient = new WebClient();
+                webClient.Credentials = new NetworkCredential(username, password);
+                return webClient.DownloadString(request);
+            }
+            catch (Exception ex)
+            {
+                Logger.Warn("Failed to get response from: {0}", request);
+                Logger.TraceException(ex.Message, ex);
+            }
+
+            return String.Empty;
+        }
     }
 }

NzbDrone.Core/Providers/IHttpProvider.cs

@@ -3,5 +3,6 @@
     public interface IHttpProvider
     {
         string DownloadString(string request);
+        string DownloadString(string request, string username, string password);
     }
 }

NzbDrone.Core/Providers/PostProcessingProvider.cs

@@ -39,7 +39,7 @@ namespace NzbDrone.Core.Providers
 
             foreach (var file in fileList)
             {
-                //Todo: Where should we handle XBMC notifying/library updating etc? RenameProvider seems like a likely place, since we want to update XBMC after renaming (might as well)
+                //Notifications will be sent from the Renamer, depending on the bool NewDownload (which will be set to true from here), a normal rename will be treated as such.
                 _renameProvider.RenameEpisodeFile(file.EpisodeFileId, true);
             }
         }

NzbDrone.Core/Providers/XbmcProvider.cs

@@ -13,14 +13,16 @@ namespace NzbDrone.Core.Providers
     public class XbmcProvider : IXbmcProvider
     {
         private readonly IConfigProvider _configProvider;
+        private readonly IHttpProvider _httpProvider;
 
         private WebClient _webClient;
         private static readonly Logger Logger = LogManager.GetCurrentClassLogger();
 
-        public XbmcProvider(IConfigProvider configProvider)
+        public XbmcProvider(IConfigProvider configProvider, IHttpProvider httpProvider)
         {
             _webClient = new WebClient();
             _configProvider = configProvider;
+            _httpProvider = httpProvider;
         }
 
         #region IXbmcProvider Members
@@ -84,25 +86,14 @@ namespace NzbDrone.Core.Providers
         {
             var username = _configProvider.GetValue("XbmcUsername", String.Empty, true);
             var password = _configProvider.GetValue("XbmcPassword", String.Empty, true);
+            var url = String.Format("http://{0}/xbmcCmds/xbmcHttp?command={1}", host, command);
 
             if (!String.IsNullOrEmpty(username))
             {
-                _webClient.Credentials = new NetworkCredential(username, password);
+                return _httpProvider.DownloadString(url, username, password);
             }
             
-            var url = String.Format("http://{0}/xbmcCmds/xbmcHttp?command={1}", host, command);
-
-            try
-            {
-                return _webClient.DownloadString(url);
-            }
-            catch (Exception ex)
-            {
-                Logger.Warn("Unable to Connect to XBMC Host: {0}", host);
-                Logger.DebugException(ex.Message, ex);
-            }
-
-            return string.Empty;
+            return _httpProvider.DownloadString(url);
         }
 
         private string GetXbmcSeriesPath(string host, int seriesId)