files: remove destination file before copying new content (WORM)

nextcloud · Mar 7, 2022 · 5e6ac2b · 5e6ac2b
1 parent 44e2a7d
commit 5e6ac2b
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/lib/private/Files/Storage/Local.php b/lib/private/Files/Storage/Local.php
@@ -354,6 +354,8 @@ public function copy($path1, $path2) {
 			return parent::copy($path1, $path2);
 		} else {
 			$oldMask = umask(022);
+			// support Write-Once-Read-Many filesystems
+			$this->unlink($path2);
 			$result = copy($this->getSourcePath($path1), $this->getSourcePath($path2));
 			umask($oldMask);
 			return $result;