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<?php |
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declare(strict_types=1); |
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/** |
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* @copyright Copyright (c) 2021, Daniel Calviño Sánchez <[email protected]> |
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* |
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* @author Daniel Calviño Sánchez <[email protected]> |
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* |
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* @license GNU AGPL version 3 or any later version |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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namespace OC\Core\Command\Preview; |
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use OC\Preview\Storage\Root; |
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use OCP\DB\QueryBuilder\IQueryBuilder; |
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use OCP\Files\IMimeTypeLoader; |
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use OCP\Files\NotFoundException; |
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use OCP\Files\NotPermittedException; |
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use OCP\IAvatarManager; |
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use OCP\IDBConnection; |
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use OCP\IUserManager; |
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use Symfony\Component\Console\Command\Command; |
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use Symfony\Component\Console\Input\InputInterface; |
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use Symfony\Component\Console\Input\InputOption; |
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use Symfony\Component\Console\Output\OutputInterface; |
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class ResetRenderedTexts extends Command { |
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/** @var IDBConnection */ |
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protected $connection; |
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/** @var IUserManager */ |
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protected $userManager; |
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/** @var IAvatarManager */ |
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protected $avatarManager; |
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/** @var Root */ |
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private $previewFolder; |
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/** @var IMimeTypeLoader */ |
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private $mimeTypeLoader; |
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public function __construct(IDBConnection $connection, |
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IUserManager $userManager, |
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IAvatarManager $avatarManager, |
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Root $previewFolder, |
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IMimeTypeLoader $mimeTypeLoader) { |
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parent::__construct(); |
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$this->connection = $connection; |
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$this->userManager = $userManager; |
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$this->avatarManager = $avatarManager; |
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$this->previewFolder = $previewFolder; |
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$this->mimeTypeLoader = $mimeTypeLoader; |
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} |
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protected function configure() { |
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$this |
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->setName('preview:reset-rendered-texts') |
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->setDescription('Deletes all generated avatars and previews of text and md files') |
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->addOption('dry', 'd', InputOption::VALUE_NONE, 'Dry mode - will not delete any files - in combination with the verbose mode one could check the operations.'); |
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} |
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protected function execute(InputInterface $input, OutputInterface $output): int { |
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$dryMode = $input->getOption('dry'); |
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if ($dryMode) { |
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$output->writeln('INFO: The command is run in dry mode and will not modify anything.'); |
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$output->writeln(''); |
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} |
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$this->deleteAvatars($output, $dryMode); |
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$this->deletePreviews($output, $dryMode); |
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return 0; |
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} |
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private function deleteAvatars(OutputInterface $output, bool $dryMode): void { |
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$avatarsToDeleteCount = 0; |
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foreach ($this->getAvatarsToDelete() as [$userId, $avatar]) { |
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$output->writeln('Deleting avatar for ' . $userId, OutputInterface::VERBOSITY_VERBOSE); |
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$avatarsToDeleteCount++; |
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if ($dryMode) { |
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continue; |
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} |
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try { |
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$avatar->remove(); |
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} catch (NotFoundException $e) { |
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// continue |
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} catch (NotPermittedException $e) { |
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// continue |
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} |
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} |
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$output->writeln('Deleted ' . $avatarsToDeleteCount . ' avatars'); |
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$output->writeln(''); |
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} |
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private function getAvatarsToDelete(): \Iterator { |
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foreach ($this->userManager->search('') as $user) { |
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$avatar = $this->avatarManager->getAvatar($user->getUID()); |
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if (!$avatar->isCustomAvatar()) { |
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yield [$user->getUID(), $avatar]; |
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} |
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} |
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} |
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private function deletePreviews(OutputInterface $output, bool $dryMode): void { |
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$previewsToDeleteCount = 0; |
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foreach ($this->getPreviewsToDelete() as ['name' => $previewFileId, 'path' => $filePath]) { |
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$output->writeln('Deleting previews for ' . $filePath, OutputInterface::VERBOSITY_VERBOSE); |
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$previewsToDeleteCount++; |
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if ($dryMode) { |
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continue; |
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} |
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try { |
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$preview = $this->previewFolder->getFolder((string)$previewFileId); |
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$preview->delete(); |
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} catch (NotFoundException $e) { |
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// continue |
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} catch (NotPermittedException $e) { |
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// continue |
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} |
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} |
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$output->writeln('Deleted ' . $previewsToDeleteCount . ' previews'); |
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} |
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// Copy pasted and adjusted from |
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// "lib/private/Preview/BackgroundCleanupJob.php". |
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private function getPreviewsToDelete(): \Iterator { |
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$qb = $this->connection->getQueryBuilder(); |
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$qb->select('path', 'mimetype') |
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->from('filecache') |
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->where($qb->expr()->eq('fileid', $qb->createNamedParameter($this->previewFolder->getId()))); |
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$cursor = $qb->execute(); |
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$data = $cursor->fetch(); |
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$cursor->closeCursor(); |
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if ($data === null) { |
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return []; |
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} |
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/* |
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* This lovely like is the result of the way the new previews are stored |
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* We take the md5 of the name (fileid) and split the first 7 chars. That way |
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* there are not a gazillion files in the root of the preview appdata. |
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*/ |
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$like = $this->connection->escapeLikeParameter($data['path']) . '/_/_/_/_/_/_/_/%'; |
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$qb = $this->connection->getQueryBuilder(); |
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$qb->select('a.name', 'b.path') |
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->from('filecache', 'a') |
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->leftJoin('a', 'filecache', 'b', $qb->expr()->eq( |
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$qb->expr()->castColumn('a.name', IQueryBuilder::PARAM_INT), 'b.fileid' |
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)) |
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->where( |
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$qb->expr()->andX( |
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$qb->expr()->like('a.path', $qb->createNamedParameter($like)), |
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$qb->expr()->eq('a.mimetype', $qb->createNamedParameter($this->mimeTypeLoader->getId('httpd/unix-directory'))), |
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$qb->expr()->orX( |
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$qb->expr()->eq('b.mimetype', $qb->createNamedParameter($this->mimeTypeLoader->getId('text/plain'))), |
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$qb->expr()->eq('b.mimetype', $qb->createNamedParameter($this->mimeTypeLoader->getId('text/markdown'))), |
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$qb->expr()->eq('b.mimetype', $qb->createNamedParameter($this->mimeTypeLoader->getId('text/x-markdown'))) |
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) |
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) |
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); |
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$cursor = $qb->execute(); |
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while ($row = $cursor->fetch()) { |
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yield $row; |
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} |
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$cursor->closeCursor(); |
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} |
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} |
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nextcloud /
server
