Better client side errors when there are issues communicating with trakt.

NzbDrone.Api/ErrorManagement/ApiException.cs

@@ -9,7 +9,6 @@ namespace NzbDrone.Api.ErrorManagement
     {
         public object Content { get; private set; }
 
-
         public HttpStatusCode StatusCode { get; private set; }
 
         protected ApiException(HttpStatusCode statusCode, object content = null)

NzbDrone.Api/ErrorManagement/NzbDroneErrorPipeline.cs

@@ -3,6 +3,7 @@ using FluentValidation;
 using NLog;
 using Nancy;
 using NzbDrone.Api.Extensions;
+using NzbDrone.Common.Exceptions;
 using HttpStatusCode = Nancy.HttpStatusCode;
 
 namespace NzbDrone.Api.ErrorManagement
@@ -35,9 +36,20 @@ namespace NzbDrone.Api.ErrorManagement
                 return validationException.Errors.AsResponse(HttpStatusCode.BadRequest);
             }
 
+            var clientException = exception as NzbDroneClientException;
+
+            if (clientException != null)
+            {
+                return new ErrorModel
+                {
+                    Message = exception.Message,
+                    Description = exception.ToString()
+                }.AsResponse((HttpStatusCode)clientException.StatusCode);
+            }
+
             _logger.FatalException("Request Failed", exception);
 
-            return new ErrorModel()
+            return new ErrorModel
                 {
                     Message = exception.Message,
                     Description = exception.ToString()

NzbDrone.Common/Exceptions/NzbDroneClientException.cs

@@ -0,0 +1,20 @@
+using System.Net;
+
+namespace NzbDrone.Common.Exceptions
+{
+    public class NzbDroneClientException : NzbDroneException
+    {
+        public HttpStatusCode StatusCode { get; private set; }
+
+        public NzbDroneClientException(HttpStatusCode statusCode, string message, params object[] args) : base(message, args)
+        {
+            StatusCode = statusCode;
+        }
+
+        public NzbDroneClientException(HttpStatusCode statusCode, string message)
+            : base(message)
+        {
+            StatusCode = statusCode;
+        }
+    }
+}

NzbDrone.Common/Exceptions/NzbDroneException.cs

@@ -2,8 +2,6 @@
 
 namespace NzbDrone.Common.Exceptions
 {
-
-
     public abstract class NzbDroneException : ApplicationException
     {
         protected NzbDroneException(string message, params object[] args)

NzbDrone.Common/NzbDrone.Common.csproj

@@ -88,6 +88,7 @@
     <Compile Include="EnvironmentInfo\StartupArguments.cs" />
     <Compile Include="EnvironmentInfo\RuntimeInfo.cs" />
     <Compile Include="EnvironmentInfo\OsInfo.cs" />
+    <Compile Include="Exceptions\NzbDroneClientException.cs" />
     <Compile Include="Exceptions\NzbDroneException.cs" />
     <Compile Include="IEnumerableExtensions.cs" />
     <Compile Include="Instrumentation\GlobalExceptionHandlers.cs" />

NzbDrone.Core/MetadataSource/Trakt/TraktCommunicationException.cs

@@ -1,14 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-
-namespace NzbDrone.Core.MetadataSource.Trakt
-{
-   public class TraktCommunicationException : Exception
-    {
-       public TraktCommunicationException(string message, Exception innerException) : base(message, innerException)
-       {
-       }
-    }
-}

NzbDrone.Core/MetadataSource/Trakt/TraktException.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Text;
+using NzbDrone.Common.Exceptions;
+
+namespace NzbDrone.Core.MetadataSource.Trakt
+{
+    public class TraktException : NzbDroneClientException
+    {
+        public TraktException(string message) : base(HttpStatusCode.ServiceUnavailable, message)
+        {
+        }
+
+        public TraktException(string message, params object[] args) : base(HttpStatusCode.ServiceUnavailable, message, args)
+        {
+        }
+    }
+}

NzbDrone.Core/MetadataSource/TraktProxy.cs

@@ -2,7 +2,9 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Net;
 using System.Text.RegularExpressions;
+using NLog;
 using NzbDrone.Common;
 using NzbDrone.Core.MediaCover;
 using NzbDrone.Core.MetadataSource.Trakt;
@@ -15,26 +17,33 @@ namespace NzbDrone.Core.MetadataSource
 {
     public class TraktProxy : ISearchForNewSeries, IProvideSeriesInfo
     {
-        public List<Series> SearchForNewSeries(string title)
-        {
-            var client = BuildClient("search", "shows");
-            var restRequest = new RestRequest(GetSearchTerm(title));
-            var response = client.ExecuteAndValidate<List<SearchShow>>(restRequest);
+        private readonly Logger _logger;
+        private static readonly Regex InvalidSearchCharRegex = new Regex(@"[^a-zA-Z0-9\s-\.]", RegexOptions.Compiled);
 
-            return response.Select(MapSearchSeries).ToList();
+        public TraktProxy(Logger logger)
+        {
+            _logger = logger;
         }
 
-
-        private static readonly Regex InvalidSearchCharRegex = new Regex(@"[^a-zA-Z0-9\s-\.]", RegexOptions.Compiled);
-
-        private static string GetSearchTerm(string phrase)
+        public List<Series> SearchForNewSeries(string title)
         {
-            phrase = phrase.RemoveAccent().ToLower();
-            phrase = phrase.Replace("&", "and");
-            phrase = InvalidSearchCharRegex.Replace(phrase, string.Empty);
-            phrase = phrase.CleanSpaces().Replace(" ", "+");
+            try
+            {
+                var client = BuildClient("search", "shows");
+                var restRequest = new RestRequest(GetSearchTerm(title));
+                var response = client.ExecuteAndValidate<List<SearchShow>>(restRequest);
 
-            return phrase;
+                return response.Select(MapSearchSeries).ToList();
+            }
+            catch (WebException ex)
+            {
+                throw new TraktException("Search for '{0}' failed. Unable to communicate with Trakt.", title);
+            }
+            catch (Exception ex)
+            {
+                _logger.WarnException(ex.Message, ex);
+                throw new TraktException("Search for '{0}' failed. Invalid response received from Trakt.", title);
+            }
         }
 
         public Tuple<Series, List<Episode>> GetSeriesInfo(int tvDbSeriesId)
@@ -43,7 +52,6 @@ namespace NzbDrone.Core.MetadataSource
             var restRequest = new RestRequest(tvDbSeriesId.ToString() + "/extended");
             var response = client.ExecuteAndValidate<Show>(restRequest);
 
-
             var episodes = response.seasons.SelectMany(c => c.episodes).Select(MapEpisode).ToList();
             var series = MapSeries(response);
 
@@ -164,6 +172,14 @@ namespace NzbDrone.Core.MetadataSource
             return match.Captures[0].Value;
         }
 
+        private static string GetSearchTerm(string phrase)
+        {
+            phrase = phrase.RemoveAccent().ToLower();
+            phrase = phrase.Replace("&", "and");
+            phrase = InvalidSearchCharRegex.Replace(phrase, string.Empty);
+            phrase = phrase.CleanSpaces().Replace(" ", "+");
 
+            return phrase;
+        }
     }
 }

NzbDrone.Core/NzbDrone.Core.csproj

@@ -223,6 +223,7 @@
     <Compile Include="Instrumentation\Commands\DeleteLogFilesCommand.cs" />
     <Compile Include="Instrumentation\Commands\TrimLogCommand.cs" />
     <Compile Include="Instrumentation\DeleteLogFilesService.cs" />
+    <Compile Include="MetadataSource\Trakt\TraktException.cs" />
     <Compile Include="ProgressMessaging\NewProgressMessageEvent.cs" />
     <Compile Include="ProgressMessaging\ProgressMessage.cs" />
     <Compile Include="ProgressMessaging\ProgressMessageTarget.cs" />
@@ -251,7 +252,6 @@
     <Compile Include="MediaFiles\RenameEpisodeFileService.cs" />
     <Compile Include="MediaFiles\SameFilenameException.cs" />
     <Compile Include="MediaFiles\UpgradeMediaFileService.cs" />
-    <Compile Include="MetadataSource\Trakt\TraktCommunicationException.cs" />
     <Compile Include="Notifications\Email\TestEmailCommand.cs" />
     <Compile Include="Notifications\Growl\GrowlSettings.cs" />
     <Compile Include="Notifications\Growl\TestGrowlCommand.cs" />

UI/Instrumentation/ErrorHandler.js

@@ -73,8 +73,14 @@
             return false;
         }
 
+        else if (xmlHttpRequest.status === 503) {
+            message.message = xmlHttpRequest.responseJSON.message;
+        }
 
-        message.message = '[{0}] {1} : {2}'.format(ajaxOptions.type, xmlHttpRequest.statusText, ajaxOptions.url);
+        else
+        {
+            message.message = '[{0}] {1} : {2}'.format(ajaxOptions.type, xmlHttpRequest.statusText, ajaxOptions.url);
+        }
 
         window.Messenger().post(message);
         return false;