From 5d4a358cc44aa31ba98d0861c4d79914df53c2f5 Mon Sep 17 00:00:00 2001
From: provokateurin <kate@provokateurin.de>
Date: Thu, 26 Sep 2024 09:41:49 +0200
Subject: [PATCH] refactor(files_sharing): Make permissions prop checks less
 error prone

Signed-off-by: provokateurin <kate@provokateurin.de>
---
 apps/files_sharing/lib/External/Storage.php | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/apps/files_sharing/lib/External/Storage.php b/apps/files_sharing/lib/External/Storage.php
index 53d25b6b1bc..38b7a29e366 100644
--- a/apps/files_sharing/lib/External/Storage.php
+++ b/apps/files_sharing/lib/External/Storage.php
@@ -345,14 +345,17 @@ class Storage extends DAV implements ISharedStorage, IDisableEncryptionStorage,
 
 	public function getPermissions($path): int {
 		$response = $this->propfind($path);
+		$ocsPermissions = $response['{http://open-collaboration-services.org/ns}share-permissions'] ?? null;
+		$ocmPermissions = $response['{http://open-cloud-mesh.org/ns}share-permissions'] ?? null;
+		$ocPermissions = $response['{http://owncloud.org/ns}permissions'] ?? null;
 		// old federated sharing permissions
-		if (isset($response['{http://open-collaboration-services.org/ns}share-permissions'])) {
-			$permissions = (int)$response['{http://open-collaboration-services.org/ns}share-permissions'];
-		} elseif (isset($response['{http://open-cloud-mesh.org/ns}share-permissions'])) {
+		if ($ocsPermissions !== null) {
+			$permissions = (int)$ocsPermissions;
+		} elseif ($ocmPermissions !== null) {
 			// permissions provided by the OCM API
-			$permissions = $this->ocmPermissions2ncPermissions($response['{http://open-cloud-mesh.org/ns}share-permissions'], $path);
-		} elseif (isset($response['{http://owncloud.org/ns}permissions'])) {
-			return $this->parsePermissions($response['{http://owncloud.org/ns}permissions']);
+			$permissions = $this->ocmPermissions2ncPermissions($ocmPermissions, $path);
+		} elseif ($ocPermissions !== null) {
+			return $this->parsePermissions($ocPermissions);
 		} else {
 			// use default permission if remote server doesn't provide the share permissions
 			$permissions = $this->getDefaultPermissions($path);