From dd68f678b20d7a0a286f112dc3bb22f87b8cbb46 Mon Sep 17 00:00:00 2001
From: Robin Appelman <robin@icewind.nl>
Date: Wed, 18 Sep 2024 13:54:21 +0200
Subject: [PATCH] fix: ensure parent folder exists when writing a file to
 object storage

Signed-off-by: Robin Appelman <robin@icewind.nl>
---
 lib/private/Files/ObjectStore/ObjectStoreStorage.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/private/Files/ObjectStore/ObjectStoreStorage.php b/lib/private/Files/ObjectStore/ObjectStoreStorage.php
index faab6e74eb0..b6e571b134e 100644
--- a/lib/private/Files/ObjectStore/ObjectStoreStorage.php
+++ b/lib/private/Files/ObjectStore/ObjectStoreStorage.php
@@ -495,6 +495,10 @@ class ObjectStoreStorage extends \OC\Files\Storage\Common implements IChunkedFil
 		if ($exists) {
 			$fileId = $stat['fileid'];
 		} else {
+			$parent = $this->normalizePath(dirname($path));
+			if (!$this->is_dir($parent)) {
+				throw new \InvalidArgumentException("trying to upload a file ($path) inside a non-directory ($parent)");
+			}
 			$fileId = $this->getCache()->put($uploadPath, $stat);
 		}