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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 OCA\Files_Antivirus\Scanner\ScannerFactory; |
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use OCP\Files\File; |
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use OCP\Files\IMimeTypeLoader; |
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use OCP\IDBConnection; |
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use OCP\IL10N; |
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use OCP\Files\IRootFolder; |
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use OCP\ILogger; |
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use OCP\IUser; |
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use OCP\IUserManager; |
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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 ScannerFactory */ |
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private $scannerFactory; |
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/** @var IL10N */ |
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private $l10n; |
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/** @var AppConfig */ |
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private $appConfig; |
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/** @var ILogger */ |
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protected $logger; |
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/** @var IUserManager */ |
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protected $userManager; |
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/** @var IDBConnection */ |
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protected $db; |
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/** @var IMimeTypeLoader */ |
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protected $mimeTypeLoader; |
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/** |
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* A constructor |
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* |
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* @param ScannerFactory $scannerFactory |
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* @param IL10N $l10n |
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* @param AppConfig $appConfig |
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* @param IRootFolder $rootFolder |
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* @param ILogger $logger |
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* @param IUserManager $userManager |
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* @param IDBConnection $db |
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* @param IMimeTypeLoader $mimeTypeLoader |
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*/ |
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public function __construct(ScannerFactory $scannerFactory, |
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IL10N $l10n, |
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AppConfig $appConfig, |
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IRootFolder $rootFolder, |
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ILogger $logger, |
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IUserManager $userManager, |
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IDBConnection $db, |
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IMimeTypeLoader $mimeTypeLoader |
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){ |
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$this->rootFolder = $rootFolder; |
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$this->scannerFactory = $scannerFactory; |
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$this->l10n = $l10n; |
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$this->appConfig = $appConfig; |
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$this->logger = $logger; |
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$this->userManager = $userManager; |
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$this->db = $db; |
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$this->mimeTypeLoader = $mimeTypeLoader; |
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} |
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/** |
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* Background scanner main job |
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*/ |
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public function run(){ |
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// locate files that are not checked yet |
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try { |
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$result = $this->getFilesForScan(); |
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} catch(\Exception $e) { |
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$this->logger->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 = $row['fileid']; |
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$userId = $row['user_id']; |
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/** @var IUser $owner */ |
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$owner = $this->userManager->get($userId); |
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if (!$owner instanceof IUser){ |
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continue; |
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} |
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$this->scanOneFile($owner, $fileId); |
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// increased only for successfully scanned files |
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$cnt = $cnt + 1; |
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} catch (\Exception $e) { |
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$this->logger->error( __METHOD__ . ', exception: ' . $e->getMessage(), ['app' => 'files_antivirus']); |
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} |
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} |
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} |
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protected function getFilesForScan(){ |
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$dirMimeTypeId = $this->mimeTypeLoader->getId('httpd/unix-directory'); |
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$qb = $this->db->getQueryBuilder(); |
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$sizeLimit = (int)$this->appConfig->getAvMaxFileSize(); |
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if ( $sizeLimit === -1 ){ |
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$sizeLimitExpr = $qb->expr()->neq('fc.size', $qb->expr()->literal('0')); |
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} else { |
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$sizeLimitExpr = $qb->expr()->andX( |
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$qb->expr()->neq('fc.size', $qb->expr()->literal('0')), |
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$qb->expr()->lt('fc.size', $qb->createNamedParameter($sizeLimit)) |
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); |
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} |
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$qb->select(['fc.fileid', 'mnt.user_id']) |
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->from('filecache', 'fc') |
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->leftJoin('fc', 'files_antivirus', 'fa', $qb->expr()->eq('fa.fileid', 'fc.fileid')) |
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->innerJoin( |
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'fc', |
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'mounts', |
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'mnt', |
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$qb->expr()->andX( |
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$qb->expr()->eq('fc.storage', 'mnt.storage_id') |
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) |
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) |
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->where( |
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$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( $sizeLimitExpr ) |
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; |
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return $qb->execute(); |
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} |
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/** |
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* @param IUser $owner |
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* @param int $fileId |
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*/ |
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protected function scanOneFile(IUser $owner, $fileId){ |
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$userFolder = $this->rootFolder->getUserFolder($owner->getUID()); |
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$files = $userFolder->getById($fileId); |
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if (count($files) === 0) { |
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return; |
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} |
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/** @var File $file */ |
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$file = array_pop($files); |
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if (!($file instanceof File)) { |
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return; |
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} |
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$item = new Item($this->l10n, $file); |
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$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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} |
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nextcloud /
files_antivirus
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This error could be the result of:
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