Revert "Upstream (#148)"

This reverts commit 9f00d4b9aa.

Content.Server/Interaction/InteractionSystem.cs

@@ -7,6 +7,31 @@ using Robust.Shared.Player;
 
 namespace Content.Server.Interaction
 {
-    // TODO Remove Shared prefix
-    public sealed class InteractionSystem : SharedInteractionSystem;
+    /// <summary>
+    /// Governs interactions during clicking on entities
+    /// </summary>
+    [UsedImplicitly]
+    public sealed partial class InteractionSystem : SharedInteractionSystem
+    {
+        [Dependency] private readonly SharedContainerSystem _container = default!;
+        [Dependency] private readonly UserInterfaceSystem _uiSystem = default!;
+
+        public override bool CanAccessViaStorage(EntityUid user, EntityUid target)
+        {
+            if (Deleted(target))
+                return false;
+
+            if (!_container.TryGetContainingContainer(target, out var container))
+                return false;
+
+            if (!TryComp(container.Owner, out StorageComponent? storage))
+                return false;
+
+            if (storage.Container?.ID != container.ID)
+                return false;
+
+            // we don't check if the user can access the storage entity itself. This should be handed by the UI system.
+            return _uiSystem.IsUiOpen(container.Owner, StorageComponent.StorageUiKey.Key, user);
+        }
+    }
 }