Merge pull request #29476 from nextcloud/backport/29115/stable21

[stable21] Fix permissions when copying from ObjectStorage

Author: CarlSchwan

lib/private/Files/Cache/Cache.php

@@ -1097,7 +1097,7 @@ public function normalize($path) {
 	 * @param ICache $sourceCache
 	 * @param ICacheEntry $sourceEntry
 	 * @param string $targetPath
-	 * @return int fileid of copied entry
+	 * @return int fileId of copied entry
 	 */
 	public function copyFromCache(ICache $sourceCache, ICacheEntry $sourceEntry, string $targetPath): int {
 		if ($sourceEntry->getId() < 0) {

lib/private/Files/ObjectStore/ObjectStoreStorage.php

@@ -540,7 +540,15 @@ public function copyFromStorage(IStorage $sourceStorage, $sourceInternalPath, $t
 		if ($sourceStorage->instanceOfStorage(ObjectStoreStorage::class)) {
 			/** @var ObjectStoreStorage $sourceStorage */
 			if ($sourceStorage->getObjectStore()->getStorageId() === $this->getObjectStore()->getStorageId()) {
+				/** @var CacheEntry $sourceEntry */
 				$sourceEntry = $sourceStorage->getCache()->get($sourceInternalPath);
+				$sourceEntryData = $sourceEntry->getData();
+				// $sourceEntry['permissions'] here is the permissions from the jailed storage for the current
+				// user. Instead we use $sourceEntryData['scan_permissions'] that are the permissions from the
+				// unjailed storage.
+				if (is_array($sourceEntryData) && array_key_exists('scan_permissions', $sourceEntryData)) {
+					$sourceEntry['permissions'] = $sourceEntryData['scan_permissions'];
+				}
 				$this->copyInner($sourceEntry, $targetInternalPath);
 				return true;
 			}