mountPoint = $parameters['mountPoint']; parent::__construct($parameters); } public function unlink(string $path): bool { if ($this->trashEnabled) { try { return $this->doDelete($path, 'unlink'); } catch (GenericEncryptionException $e) { // in case of a encryption exception we delete the file right away $this->logger->info( "Can't move file " . $path . ' to the trash bin, therefore it was deleted right away'); return $this->storage->unlink($path); } } else { return $this->storage->unlink($path); } } public function rmdir(string $path): bool { if ($this->trashEnabled) { return $this->doDelete($path, 'rmdir'); } else { return $this->storage->rmdir($path); } } /** * check if it is a file located in data/user/files only files in the * 'files' directory should be moved to the trash */ protected function shouldMoveToTrash(string $path): bool { $normalized = Filesystem::normalizePath($this->mountPoint . '/' . $path); $parts = explode('/', $normalized); if (count($parts) < 4 || strpos($normalized, '/appdata_') === 0) { return false; } // check if there is a app which want to disable the trash bin for this file $fileId = $this->storage->getCache()->getId($path); $owner = $this->storage->getOwner($path); if ($owner === false || $this->storage->instanceOfStorage(\OCA\Files_Sharing\External\Storage::class)) { $nodes = $this->rootFolder->getById($fileId); } else { $nodes = $this->rootFolder->getUserFolder($owner)->getById($fileId); } foreach ($nodes as $node) { $event = $this->createMoveToTrashEvent($node); $this->eventDispatcher->dispatchTyped($event); $this->eventDispatcher->dispatch('OCA\Files_Trashbin::moveToTrash', $event); if ($event->shouldMoveToTrashBin() === false) { return false; } } if ($parts[2] === 'files' && $this->userManager->userExists($parts[1])) { return true; } return false; } /** * get move to trash event * * @param Node $node * @return MoveToTrashEvent */ protected function createMoveToTrashEvent(Node $node): MoveToTrashEvent { return new MoveToTrashEvent($node); } /** * Run the delete operation with the given method * * @param string $path path of file or folder to delete * @param string $method either "unlink" or "rmdir" * * @return bool true if the operation succeeded, false otherwise */ private function doDelete(string $path, string $method): bool { $isTrashbinEnabled = Server::get(IAppManager::class)->isEnabledForUser('files_trashbin'); $isPartFile = pathinfo($path, PATHINFO_EXTENSION) === 'part'; $isSkipTrashHeaderSet = $this->request !== null && $this->request->getHeader('X-NC-Skip-Trashbin') === 'true'; // We keep the shouldMoveToTrash call at the end to prevent emitting unnecessary event. $shouldMoveToTrash = $isTrashbinEnabled && !$isPartFile && !$isSkipTrashHeaderSet && $this->shouldMoveToTrash($path); if ($shouldMoveToTrash) { // check permissions before we continue, this is especially important for // shared files if (!$this->isDeletable($path)) { return false; } $isMovedToTrash = $this->trashManager->moveToTrash($this, $path); if ($isMovedToTrash) { return true; } } return call_user_func([$this->storage, $method], $path); } /** * Setup the storage wrapper callback */ public static function setupStorage(): void { $trashManager = \OC::$server->get(ITrashManager::class); $userManager = \OC::$server->get(IUserManager::class); $logger = \OC::$server->get(LoggerInterface::class); $eventDispatcher = \OC::$server->get(IEventDispatcher::class); $rootFolder = \OC::$server->get(IRootFolder::class); $request = \OC::$server->get(IRequest::class); Filesystem::addStorageWrapper( 'oc_trashbin', function (string $mountPoint, IStorage $storage) use ($trashManager, $userManager, $logger, $eventDispatcher, $rootFolder, $request) { return new Storage( ['storage' => $storage, 'mountPoint' => $mountPoint], $trashManager, $userManager, $logger, $eventDispatcher, $rootFolder, $request, ); }, 1); } public function getMountPoint() { return $this->mountPoint; } public function moveFromStorage(IStorage $sourceStorage, string $sourceInternalPath, string $targetInternalPath): bool { $sourceIsTrashbin = $sourceStorage->instanceOfStorage(Storage::class); try { // the fallback for moving between storage involves a copy+delete // we don't want to trigger the trashbin when doing the delete if ($sourceIsTrashbin) { /** @var Storage $sourceStorage */ $sourceStorage->disableTrash(); } $result = parent::moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath); if ($sourceIsTrashbin) { /** @var Storage $sourceStorage */ $sourceStorage->enableTrash(); } return $result; } catch (\Exception $e) { if ($sourceIsTrashbin) { /** @var Storage $sourceStorage */ $sourceStorage->enableTrash(); } throw $e; } } protected function disableTrash(): void { $this->trashEnabled = false; } protected function enableTrash(): void { $this->trashEnabled = true; } } ow_set_period Nextcloud server, a safe home for all your data: https://github.com/nextcloud/serverwww-data
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