From 0c46004cd921aed337c5b995afe253d65c15eeb4 Mon Sep 17 00:00:00 2001
From: Shadowghost <Ghost_of_Stone@web.de>
Date: Thu, 5 Feb 2026 19:57:03 +0100
Subject: [PATCH] Optimize accessibility checks

---
 MediaBrowser.Controller/Entities/BaseItem.cs | 23 ++++++++++++++++++--
 MediaBrowser.Controller/Entities/Folder.cs   |  5 ++++-
 2 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/MediaBrowser.Controller/Entities/BaseItem.cs b/MediaBrowser.Controller/Entities/BaseItem.cs
index 3f04b1ffae..d366e0288a 100644
--- a/MediaBrowser.Controller/Entities/BaseItem.cs
+++ b/MediaBrowser.Controller/Entities/BaseItem.cs
@@ -1350,8 +1350,27 @@ namespace MediaBrowser.Controller.Entities
 
                 if (itemCollectionFolders.Count > 0)
                 {
-                    var userCollectionFolders = LibraryManager.GetUserRootFolder().GetChildren(user, true).Select(i => i.Id).ToList();
-                    if (!itemCollectionFolders.Any(userCollectionFolders.Contains))
+                    var blockedMediaFolders = user.GetPreferenceValues<Guid>(PreferenceKind.BlockedMediaFolders);
+                    IEnumerable<Guid> userCollectionFolderIds;
+                    if (blockedMediaFolders.Length > 0)
+                    {
+                        // User has blocked folders - get all library folders and exclude blocked ones
+                        userCollectionFolderIds = LibraryManager.GetUserRootFolder().Children
+                            .Select(i => i.Id)
+                            .Where(id => !blockedMediaFolders.Contains(id));
+                    }
+                    else if (user.HasPermission(PermissionKind.EnableAllFolders))
+                    {
+                        // User can access all folders - no need to filter
+                        return true;
+                    }
+                    else
+                    {
+                        // User has specific enabled folders
+                        userCollectionFolderIds = user.GetPreferenceValues<Guid>(PreferenceKind.EnabledFolders);
+                    }
+
+                    if (!itemCollectionFolders.Any(userCollectionFolderIds.Contains))
                     {
                         return false;
                     }
diff --git a/MediaBrowser.Controller/Entities/Folder.cs b/MediaBrowser.Controller/Entities/Folder.cs
index b88572a67f..e1f7d095c3 100644
--- a/MediaBrowser.Controller/Entities/Folder.cs
+++ b/MediaBrowser.Controller/Entities/Folder.cs
@@ -1699,8 +1699,11 @@ namespace MediaBrowser.Controller.Entities
 
             if (SupportsPlayedStatus || (itemDto is not null && fields.ContainsField(ItemFields.RecursiveItemCount)))
             {
+                // Create a minimal query with just the user - skip ConfigureUserAccess to avoid
+                // expensive GetUserViews calls. Since we're counting descendants of a specific
+                // item (this folder) that the user already has access to, TopParentIds filtering
+                // is redundant. The parental rating filter is applied via query.User.
                 var query = new InternalItemsQuery(user);
-                LibraryManager.ConfigureUserAccess(query, user);
 
                 int playedCount;
                 int totalCount;