From c221e2097a778c3c422f59e10c9c887795717393 Mon Sep 17 00:00:00 2001
From: Bogdan <mynameisbogdan@users.noreply.github.com>
Date: Thu, 5 Oct 2023 02:42:18 +0300
Subject: [PATCH] Prevent NullRef for cases when media covers have nullable
 urls

---
 src/NzbDrone.Core/MediaCover/MediaCoverProxy.cs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/NzbDrone.Core/MediaCover/MediaCoverProxy.cs b/src/NzbDrone.Core/MediaCover/MediaCoverProxy.cs
index b8b0cc3a0..fa489171b 100644
--- a/src/NzbDrone.Core/MediaCover/MediaCoverProxy.cs
+++ b/src/NzbDrone.Core/MediaCover/MediaCoverProxy.cs
@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Threading.Tasks;
 using NzbDrone.Common.Cache;
+using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.Configuration;
 
@@ -31,6 +32,11 @@ namespace NzbDrone.Core.MediaCover
 
         public string RegisterUrl(string url)
         {
+            if (url.IsNullOrWhiteSpace())
+            {
+                return null;
+            }
+
             var hash = url.SHA256Hash();
 
             _cache.Set(hash, url, TimeSpan.FromHours(24));