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<?php |
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/** |
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* Copyright (c) 2012 Bart Visscher <[email protected]> |
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* This file is licensed under the Affero General Public License version 3 or |
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* later. |
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* See the COPYING-README file. |
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*/ |
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namespace OCA\Files_Antivirus; |
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use OC\Files\Filesystem; |
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use OCP\IL10N; |
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use OCP\Files\IRootFolder; |
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use OCP\IUser; |
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use OCP\IUserSession; |
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class BackgroundScanner { |
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const BATCH_SIZE = 10; |
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/** @var IRootFolder */ |
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protected $rootFolder; |
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/** @var \OCP\Files\Folder[] */ |
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protected $userFolders; |
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/** |
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* @var ScannerFactory |
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*/ |
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private $scannerFactory; |
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/** |
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* @var IL10N |
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*/ |
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private $l10n; |
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/** @var string */ |
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protected $currentFilesystemUser; |
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/** @var \OCP\IUserSession */ |
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protected $userSession; |
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/** |
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* A constructor |
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* |
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* @param \OCA\Files_Antivirus\ScannerFactory $scannerFactory |
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* @param IL10N $l10n |
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* @param IRootFolder $rootFolder |
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* @param IUserSession $userSession |
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*/ |
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public function __construct(ScannerFactory $scannerFactory, |
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IL10N $l10n, |
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IRootFolder $rootFolder, |
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IUserSession $userSession |
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){ |
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$this->rootFolder = $rootFolder; |
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$this->scannerFactory = $scannerFactory; |
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$this->l10n = $l10n; |
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$this->userSession = $userSession; |
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} |
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/** |
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* Background scanner main job |
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* @return null |
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*/ |
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public function run(){ |
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// locate files that are not checked yet |
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$dirMimeTypeId = \OC::$server->getMimeTypeLoader()->getId('httpd/unix-directory'); |
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try { |
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$qb = \OC::$server->getDatabaseConnection()->getQueryBuilder(); |
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$qb->select(['fc.fileid']) |
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->from('filecache', 'fc') |
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->leftJoin('fc', 'files_antivirus', 'fa', $qb->expr()->eq('fa.fileid', 'fc.fileid')) |
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->innerJoin( |
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'fc', |
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'storages', |
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'ss', |
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$qb->expr()->andX( |
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$qb->expr()->eq('fc.storage', 'ss.numeric_id'), |
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$qb->expr()->orX( |
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$qb->expr()->like('ss.id', $qb->expr()->literal('local::%')), |
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$qb->expr()->like('ss.id', $qb->expr()->literal('home::%')) |
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) |
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) |
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) |
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->where( |
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$qb->expr()->neq('fc.mimetype', $qb->expr()->literal($dirMimeTypeId)) |
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) |
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->andWhere( |
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$qb->expr()->orX( |
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$qb->expr()->isNull('fa.fileid'), |
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$qb->expr()->gt('fc.mtime', 'fa.check_time') |
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) |
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) |
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->andWhere( |
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$qb->expr()->like('fc.path', $qb->expr()->literal('files/%')) |
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) |
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->andWhere( |
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$qb->expr()->neq('fc.size', $qb->expr()->literal('0')) |
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) |
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; |
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$result = $qb->execute(); |
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} catch(\Exception $e) { |
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\OC::$server->getLogger()->error( __METHOD__ . ', exception: ' . $e->getMessage(), ['app' => 'files_antivirus']); |
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return; |
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} |
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$cnt = 0; |
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while ($row = $result->fetch() && $cnt < self::BATCH_SIZE) { |
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try { |
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$fileId = $row['fileid']; |
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$owner = $this->getOwner($fileId); |
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/** @var IUser $owner */ |
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if (!$owner instanceof IUser){ |
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continue; |
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} |
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$this->initFilesystemForUser($owner); |
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$view = Filesystem::getView(); |
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$path = $view->getPath($fileId); |
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if (!is_null($path)) { |
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$item = new Item($this->l10n, $view, $path, $fileId); |
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$scanner = $this->scannerFactory->getScanner(); |
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$status = $scanner->scan($item); |
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$status->dispatch($item, true); |
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} |
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// increased only for successfully scanned files |
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$cnt = $cnt + 1; |
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} catch (\Exception $e){ |
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\OC::$server->getLogger()->error( __METHOD__ . ', exception: ' . $e->getMessage(), ['app' => 'files_antivirus']); |
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} |
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} |
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$this->tearDownFilesystem(); |
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} |
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/** |
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* @param int $fileId |
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* @return IUser|null |
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*/ |
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protected function getOwner($fileId){ |
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$mountProviderCollection = \OC::$server->getMountProviderCollection(); |
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$mountCache = $mountProviderCollection->getMountCache(); |
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$mounts = $mountCache->getMountsForFileId($fileId); |
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if (!empty($mounts)) { |
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$user = $mounts[0]->getUser(); |
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if ($user instanceof IUser) { |
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return $user; |
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} |
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} |
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return null; |
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} |
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/** |
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* @param \OCP\IUser $user |
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* @return \OCP\Files\Folder |
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*/ |
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protected function getUserFolder(IUser $user) { |
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if (!isset($this->userFolders[$user->getUID()])) { |
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$userFolder = $this->rootFolder->getUserFolder($user->getUID()); |
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$this->userFolders[$user->getUID()] = $userFolder; |
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} |
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return $this->userFolders[$user->getUID()]; |
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} |
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/** |
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* @param IUser $user |
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*/ |
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protected function initFilesystemForUser(IUser $user) { |
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if ($this->currentFilesystemUser !== $user->getUID()) { |
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if ($this->currentFilesystemUser !== '') { |
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$this->tearDownFilesystem(); |
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} |
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Filesystem::init($user->getUID(), '/' . $user->getUID() . '/files'); |
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$this->userSession->setUser($user); |
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$this->currentFilesystemUser = $user->getUID(); |
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Filesystem::initMountPoints($user->getUID()); |
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} |
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} |
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/** |
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* |
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*/ |
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protected function tearDownFilesystem(){ |
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$this->userSession->setUser(null); |
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\OC_Util::tearDownFS(); |
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} |
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/** |
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* @deprecated since v8.0.0 |
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*/ |
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public static function check(){ |
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} |
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} |
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owncloud /
files_antivirus
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