* @author Thomas Müller * * @copyright Copyright (c) 2015, ownCloud, Inc. * @license AGPL-3.0 * * This code is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License, version 3, * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License, version 3, * along with this program. If not, see * */ namespace OC\Encryption; use OC\Files\Filesystem; use \OC\Files\Mount; use \OC\Files\View; /** * update encrypted files, e.g. because a file was shared */ class Update { /** @var \OC\Files\View */ protected $view; /** @var \OC\Encryption\Util */ protected $util; /** @var \OC\Files\Mount\Manager */ protected $mountManager; /** @var \OC\Encryption\Manager */ protected $encryptionManager; /** @var string */ protected $uid; /** @var \OC\Encryption\File */ protected $file; /** * * @param \OC\Files\View $view * @param \OC\Encryption\Util $util * @param \OC\Files\Mount\Manager $mountManager * @param \OC\Encryption\Manager $encryptionManager * @param \OC\Encryption\File $file * @param string $uid */ public function __construct( View $view, Util $util, Mount\Manager $mountManager, Manager $encryptionManager, File $file, $uid ) { $this->view = $view; $this->util = $util; $this->mountManager = $mountManager; $this->encryptionManager = $encryptionManager; $this->file = $file; $this->uid = $uid; } /** * hook after file was shared * * @param array $params */ public function postShared($params) { if ($params['itemType'] === 'file' || $params['itemType'] === 'folder') { $path = Filesystem::getPath($params['fileSource']); list($owner, $ownerPath) = $this->getOwnerPath($path); $absPath = '/' . $owner . '/files/' . $ownerPath; $this->update($absPath); } } /** * hook after file was unshared * * @param array $params */ public function postUnshared($params) { if ($params['itemType'] === 'file' || $params['itemType'] === 'folder') { $path = Filesystem::getPath($params['fileSource']); list($owner, $ownerPath) = $this->getOwnerPath($path); $absPath = '/' . $owner . '/files/' . $ownerPath; $this->update($absPath); } } /** * get owner and path relative to data//files * * @param string $path path to file for current user * @return array ['owner' => $owner, 'path' => $path] * @throw \InvalidArgumentException */ private function getOwnerPath($path) { $info = Filesystem::getFileInfo($path); $owner = Filesystem::getOwner($path); $view = new View('/' . $owner . '/files'); $path = $view->getPath($info->getId()); if ($path === null) { throw new \InvalidArgumentException('No file found for ' . $info->getId()); } return array($owner, $path); } /** * notify encryption module about added/removed users from a file/folder * * @param string $path relative to data/ * @throws Exceptions\ModuleDoesNotExistsException */ public function update($path) { // if a folder was shared, get a list of all (sub-)folders if ($this->view->is_dir($path)) { $allFiles = $this->util->getAllFiles($path); } else { $allFiles = array($path); } $encryptionModule = $this->encryptionManager->getDefaultEncryptionModule(); foreach ($allFiles as $file) { $usersSharing = $this->file->getAccessList($file); $encryptionModule->update($file, $this->uid, $usersSharing); } } }