add files_external:notify command
This commit is contained in:
Robin Appelman
parent
e1fa314b18
commit
e34ee9099d
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@ -31,6 +31,7 @@ use OCA\Files_External\Command\Delete;
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use OCA\Files_External\Command\Create;
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use OCA\Files_External\Command\Backends;
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use OCA\Files_External\Command\Verify;
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use OCA\Files_External\Command\Notify;
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$userManager = OC::$server->getUserManager();
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$userSession = OC::$server->getUserSession();
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@ -42,6 +43,7 @@ $globalStorageService = $app->getContainer()->query('\OCA\Files_External\Service
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$userStorageService = $app->getContainer()->query('\OCA\Files_External\Service\UserStoragesService');
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$importLegacyStorageService = $app->getContainer()->query('\OCA\Files_External\Service\ImportLegacyStoragesService');
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$backendService = $app->getContainer()->query('OCA\Files_External\Service\BackendService');
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$connection = $app->getContainer()->getServer()->getDatabaseConnection();
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/** @var Symfony\Component\Console\Application $application */
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$application->add(new ListCommand($globalStorageService, $userStorageService, $userSession, $userManager));
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@ -54,3 +56,4 @@ $application->add(new Delete($globalStorageService, $userStorageService, $userSe
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$application->add(new Create($globalStorageService, $userStorageService, $userManager, $userSession, $backendService));
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$application->add(new Backends($backendService));
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$application->add(new Verify($globalStorageService));
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$application->add(new Notify($globalStorageService, $connection));
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@ -0,0 +1,173 @@
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<?php
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/**
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* @copyright Copyright (c) 2016 Robin Appelman <robin@icewind.nl>
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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 OCA\Files_External\Command;
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use OC\Core\Command\Base;
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use OCA\Files_External\Lib\InsufficientDataForMeaningfulAnswerException;
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use OCA\Files_External\Lib\StorageConfig;
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use OCA\Files_External\Service\GlobalStoragesService;
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use OCP\Files\Storage\INotifyStorage;
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use OCP\Files\StorageNotAvailableException;
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use OCP\IDBConnection;
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use Symfony\Component\Console\Input\InputArgument;
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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 Notify extends Base {
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/** @var GlobalStoragesService */
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private $globalService;
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/** @var IDBConnection */
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private $connection;
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/** @var \OCP\DB\QueryBuilder\IQueryBuilder */
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private $updateQuery;
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function __construct(GlobalStoragesService $globalService, IDBConnection $connection) {
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parent::__construct();
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$this->globalService = $globalService;
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$this->connection = $connection;
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// the query builder doesn't really like subqueries with parameters
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$this->updateQuery = $this->connection->prepare(
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'UPDATE *PREFIX*filecache SET size = -1
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WHERE `path` = ?
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AND `storage` IN (SELECT storage_id FROM *PREFIX*mounts WHERE mount_id = ?)'
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);
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}
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protected function configure() {
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$this
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->setName('files_external:notify')
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->setDescription('Listen for active update notifications for a configured external mount')
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->addArgument(
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'mount_id',
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InputArgument::REQUIRED,
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'the mount id of the mount to listen to'
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)->addOption(
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'user',
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'u',
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InputOption::VALUE_REQUIRED,
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'The username for the remote mount (required only for some mount configuration that don\'t store credentials)'
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)->addOption(
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'password',
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'p',
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InputOption::VALUE_REQUIRED,
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'The password for the remote mount (required only for some mount configuration that don\'t store credentials)'
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)->addOption(
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'path',
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null,
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InputOption::VALUE_REQUIRED,
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'The directory in the storage to listen for updates in',
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'/'
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);
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parent::configure();
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}
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protected function execute(InputInterface $input, OutputInterface $output) {
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$mount = $this->globalService->getStorage($input->getArgument('mount_id'));
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if (is_null($mount)) {
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$output->writeln('<error>Mount not found</error>');
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return 1;
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}
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$noAuth = false;
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try {
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$authBackend = $mount->getAuthMechanism();
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$authBackend->manipulateStorageConfig($mount);
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} catch (InsufficientDataForMeaningfulAnswerException $e) {
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$noAuth = true;
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} catch (StorageNotAvailableException $e) {
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$noAuth = true;
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}
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if ($input->getOption('user')) {
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$mount->setBackendOption('user', $input->getOption('user'));
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}
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if ($input->getOption('password')) {
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$mount->setBackendOption('password', $input->getOption('password'));
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}
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try {
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$storage = $this->createStorage($mount);
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} catch (\Exception $e) {
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$output->writeln('<error>Error while trying to create storage</error>');
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if ($noAuth) {
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$output->writeln('<error>Username and/or password required</error>');
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}
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return 1;
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}
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if (!$storage instanceof INotifyStorage) {
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$output->writeln('<error>Mount of type "' . $mount->getBackend()->getText() . '" does not support active update notifications</error>');
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return 1;
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}
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$verbose = $input->getOption('verbose');
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$path = trim($input->getOption('path'), '/');
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$storage->listen($path, function ($type, $path, $renameTarget) use ($mount, $verbose, $output) {
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if ($verbose) {
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$this->logUpdate($type, $path, $renameTarget, $output);
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}
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if ($type == INotifyStorage::NOTIFY_RENAMED) {
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$this->markParentAsOutdated($mount->getId(), $renameTarget);
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}
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$this->markParentAsOutdated($mount->getId(), $path);
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});
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}
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private function createStorage(StorageConfig $mount) {
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$class = $mount->getBackend()->getStorageClass();
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return new $class($mount->getBackendOptions());
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}
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private function markParentAsOutdated($mountId, $path) {
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$parent = dirname($path);
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if ($parent === '.') {
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$parent = '';
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}
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$this->updateQuery->execute([$parent, $mountId]);
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}
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private function logUpdate($type, $path, $renameTarget, OutputInterface $output) {
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switch ($type) {
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case INotifyStorage::NOTIFY_ADDED:
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$text = 'added';
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break;
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case INotifyStorage::NOTIFY_MODIFIED:
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$text = 'modified';
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break;
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case INotifyStorage::NOTIFY_REMOVED:
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$text = 'removed';
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break;
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case INotifyStorage::NOTIFY_RENAMED:
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$text = 'renamed';
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break;
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default:
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return;
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}
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$text .= ' ' . $path;
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if ($type === INotifyStorage::NOTIFY_RENAMED) {
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$text .= ' to ' . $renameTarget;
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}
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$output->writeln($text);
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}
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}
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