Fixed: (AvistaZ) Improve message for failed logins

src/NzbDrone.Core/Indexers/Definitions/Avistaz/AvistazBase.cs

@@ -7,6 +7,7 @@ using NLog;
 using NzbDrone.Common.Http;
 using NzbDrone.Common.Serializer;
 using NzbDrone.Core.Configuration;
+using NzbDrone.Core.Indexers.Exceptions;
 using NzbDrone.Core.Messaging.Events;
 
 namespace NzbDrone.Core.Indexers.Definitions.Avistaz
@@ -53,6 +54,8 @@ namespace NzbDrone.Core.Indexers.Definitions.Avistaz
         protected abstract IndexerCapabilities SetCapabilities();
 
         protected override async Task DoLogin()
+        {
+            try
             {
                 Settings.Token = await GetToken();
 
@@ -63,6 +66,14 @@ namespace NzbDrone.Core.Indexers.Definitions.Avistaz
 
                 _logger.Debug("Avistaz authentication succeeded.");
             }
+            catch (HttpException ex) when (ex.Response.StatusCode == HttpStatusCode.Unauthorized)
+            {
+                _logger.Warn(ex, "Failed to authenticate with Avistaz");
+
+                var jsonResponse = STJson.Deserialize<AvistazErrorResponse>(ex.Response.Content);
+                throw new IndexerAuthException(jsonResponse?.Message ?? "Unauthorized request to indexer");
+            }
+        }
 
         protected override bool CheckIfLoginNeeded(HttpResponse httpResponse)
         {