From 2429dd91c6d08eb2b70b14db2b3c673d320e6a5c Mon Sep 17 00:00:00 2001
From: Elias Benbourenane <eliasbenbourenane@gmail.com>
Date: Thu, 14 Nov 2024 22:27:56 -0500
Subject: [PATCH] Allow `GetFileSize` to follow symlinks

(cherry picked from commit ca0bb14027f3409014e7cf9ffa8e04e577001d77)
---
 src/NzbDrone.Common/Disk/DiskProviderBase.cs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/NzbDrone.Common/Disk/DiskProviderBase.cs b/src/NzbDrone.Common/Disk/DiskProviderBase.cs
index 20a6607ac..8983b9298 100644
--- a/src/NzbDrone.Common/Disk/DiskProviderBase.cs
+++ b/src/NzbDrone.Common/Disk/DiskProviderBase.cs
@@ -189,6 +189,18 @@ namespace NzbDrone.Common.Disk
             }
 
             var fi = new FileInfo(path);
+
+            // If the file is a symlink, resolve the target path and get the size of the target file.
+            if (fi.Attributes.HasFlag(FileAttributes.ReparsePoint))
+            {
+                var targetPath = fi.ResolveLinkTarget(true)?.FullName;
+
+                if (targetPath != null)
+                {
+                    fi = new FileInfo(targetPath);
+                }
+            }
+
             return fi.Length;
         }