Fixed: Now shows UI notification if downloading nzb from indexer fails.

src/NzbDrone.Core/Download/UsenetClientBase.cs

@@ -0,0 +1,72 @@
+using System;
+using System.IO;
+using System.Linq;
+using System.Collections.Generic;
+using System.Net;
+using NzbDrone.Common;
+using NzbDrone.Common.Disk;
+using NzbDrone.Common.Extensions;
+using NzbDrone.Common.Http;
+using NzbDrone.Core.Exceptions;
+using NzbDrone.Core.Indexers;
+using NzbDrone.Core.Organizer;
+using NzbDrone.Core.Parser;
+using NzbDrone.Core.Parser.Model;
+using NzbDrone.Core.ThingiProvider;
+using NzbDrone.Core.Configuration;
+using NLog;
+
+namespace NzbDrone.Core.Download
+{
+    public abstract class UsenetClientBase<TSettings> : DownloadClientBase<TSettings>
+        where TSettings : IProviderConfig, new()
+    {
+        protected readonly IHttpClient _httpClient;
+
+        protected UsenetClientBase(IHttpClient httpClient,
+                                    IConfigService configService,
+                                    IDiskProvider diskProvider,
+                                    IParsingService parsingService,
+                                    Logger logger)
+            : base(configService, diskProvider, parsingService, logger)
+        {
+            _httpClient = httpClient;
+        }
+        
+        public override DownloadProtocol Protocol
+        {
+            get
+            {
+                return DownloadProtocol.Usenet;
+            }
+        }
+
+        protected abstract String AddFromNzbFile(RemoteEpisode remoteEpisode, String filename, Byte[] fileContent);
+
+        public override String Download(RemoteEpisode remoteEpisode)
+        {
+            var url = remoteEpisode.Release.DownloadUrl;
+            var filename =  FileNameBuilder.CleanFileName(remoteEpisode.Release.Title) + ".nzb";
+
+            Byte[] nzbData;
+
+            try
+            {
+                using (var nzb = _httpClient.Get(new HttpRequest(url)).GetStream())
+                {
+                    nzbData = nzb.ToBytes();
+                }
+            }
+            catch (WebException ex)
+            {
+                _logger.ErrorException(String.Format("Downloading nzb for episode '{0}' failed ({1})",
+                    remoteEpisode.Release.Title, url), ex);
+
+                throw new ReleaseDownloadException(remoteEpisode.Release, "Downloading nzb failed", ex);
+            }
+
+            _logger.Info("Adding report [{0}] to the queue.", remoteEpisode.Release.Title);
+            return AddFromNzbFile(remoteEpisode, filename, nzbData);
+        }
+    }
+}