From 272adfcef75b8e06f67c16d56371511a37cb3ea5 Mon Sep 17 00:00:00 2001
From: Qstick <qstick@gmail.com>
Date: Sat, 28 Oct 2017 23:58:16 -0400
Subject: [PATCH] Fixed: Better error message for DNS exceptions on mono.

---
 .../Http/Dispatchers/ManagedHttpDispatcher.cs    | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/NzbDrone.Common/Http/Dispatchers/ManagedHttpDispatcher.cs b/src/NzbDrone.Common/Http/Dispatchers/ManagedHttpDispatcher.cs
index 6024d4395..5492f3882 100644
--- a/src/NzbDrone.Common/Http/Dispatchers/ManagedHttpDispatcher.cs
+++ b/src/NzbDrone.Common/Http/Dispatchers/ManagedHttpDispatcher.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Net;
 using NzbDrone.Common.EnvironmentInfo;
 using NzbDrone.Common.Extensions;
@@ -73,7 +73,19 @@ namespace NzbDrone.Common.Http.Dispatchers
 
                 if (httpWebResponse == null)
                 {
-                    throw;
+                    // The default messages for WebException on mono are pretty horrible.
+                    if (e.Status == WebExceptionStatus.NameResolutionFailure)
+                    {
+                        throw new WebException($"DNS Name Resolution Failure: '{webRequest.RequestUri.Host}'", e.Status);
+                    }
+                    else if (OsInfo.IsNotWindows)
+                    {
+                        throw new WebException($"{e.Message}: '{webRequest.RequestUri}'", e.Status);
+                    }
+                    else
+                    {
+                        throw;
+                    };
                 }
             }