fix(DAV): Migrate known exceptions to Sabre exceptions when copying

Signed-off-by: Joas Schilling <coding@schilljs.com>

apps/dav/lib/Connector/Sabre/Directory.php

@@ -467,6 +467,7 @@ class Directory extends \OCA\DAV\Connector\Sabre\Node implements \Sabre\DAV\ICol
 
 	public function copyInto($targetName, $sourcePath, INode $sourceNode) {
 		if ($sourceNode instanceof File || $sourceNode instanceof Directory) {
+			try {
 				$destinationPath = $this->getPath() . '/' . $targetName;
 				$sourcePath = $sourceNode->getPath();
 
@@ -481,6 +482,13 @@ class Directory extends \OCA\DAV\Connector\Sabre\Node implements \Sabre\DAV\ICol
 				}
 
 				return $this->fileView->copy($sourcePath, $destinationPath);
+			} catch (StorageNotAvailableException $e) {
+				throw new ServiceUnavailable($e->getMessage());
+			} catch (ForbiddenException $ex) {
+				throw new Forbidden($ex->getMessage(), $ex->getRetry());
+			} catch (LockedException $e) {
+				throw new FileLocked($e->getMessage(), $e->getCode(), $e);
+			}
 		}
 
 		return false;