fix: ensure parent folder exists when writing a file to object storage

Signed-off-by: Robin Appelman <robin@icewind.nl>

diff --git a/lib/private/Files/ObjectStore/ObjectStoreStorage.php b/lib/private/Files/ObjectStore/ObjectStoreStorage.php
index 056776326076090dc00f6e6aee8e984d24c4891d..c9fbe11bbfa475cf8633f0096a0fca7394eaa04a 100644 (file)
--- a/lib/private/Files/ObjectStore/ObjectStoreStorage.php
+++ b/lib/private/Files/ObjectStore/ObjectStoreStorage.php
@@ -514,6 +514,10 @@ 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);
                }