Add missing file

Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>

apps/user_ldap/lib/Command/ResetGroup.php

@@ -0,0 +1,111 @@
+<?php
+/**
+ * @copyright Copyright (c) 2021 Arthur Schiwon <blizzz@arthur-schiwon.de>
+ *
+ * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
+ * @author Côme Chilliet <come.chilliet@nextcloud.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * 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
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OCA\User_LDAP\Command;
+
+use OCA\User_LDAP\Group_Proxy;
+use OCA\User_LDAP\GroupPluginManager;
+use OCP\IGroup;
+use OCP\IGroupManager;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Helper\QuestionHelper;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\Question;
+
+class ResetGroup extends Command {
+	private IGroupManager $groupManager;
+	private GroupPluginManager $pluginManager;
+	private Group_Proxy $backend;
+
+	public function __construct(
+		IGroupManager $groupManager,
+		GroupPluginManager $pluginManager,
+		Group_Proxy $backend
+	) {
+		$this->groupManager = $groupManager;
+		$this->pluginManager = $pluginManager;
+		$this->backend = $backend;
+		parent::__construct();
+	}
+
+	protected function configure(): void {
+		$this
+			->setName('ldap:reset-group')
+			->setDescription('deletes an LDAP group independent of the group state in the LDAP')
+			->addArgument(
+				'gid',
+				InputArgument::REQUIRED,
+				'the group name as used in Nextcloud'
+			)
+			->addOption(
+				'yes',
+				'y',
+				InputOption::VALUE_NONE,
+				'do not ask for confirmation'
+			);
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output): int {
+		try {
+			$gid = $input->getArgument('gid');
+			$group = $this->groupManager->get($gid);
+			if (!$group instanceof IGroup) {
+				throw new \Exception('Group not found');
+			}
+			$backends = $group->getBackendNames();
+			if (!in_array('LDAP', $backends)) {
+				throw new \Exception('The given group is not a recognized LDAP group.');
+			}
+			if ($input->getOption('yes') === false) {
+				/** @var QuestionHelper $helper */
+				$helper = $this->getHelper('question');
+				$q = new Question('Delete all local data of this group (y|N)? ');
+				$input->setOption('yes', $helper->ask($input, $output, $q) === 'y');
+			}
+			if ($input->getOption('yes') !== true) {
+				throw new \Exception('Reset cancelled by operator');
+			}
+
+			// Disable real deletion if a plugin supports it
+			$pluginManagerSuppressed = $this->pluginManager->setSuppressDeletion(true);
+			// Bypass groupExists test to force mapping deletion
+			$this->backend->getLDAPAccess($gid)->connection->writeToCache('groupExists' . $gid, false);
+			echo "calling delete $gid\n";
+			if ($group->delete()) {
+				$this->pluginManager->setSuppressDeletion($pluginManagerSuppressed);
+				return 0;
+			}
+		} catch (\Throwable $e) {
+			if (isset($pluginManagerSuppressed)) {
+				$this->pluginManager->setSuppressDeletion($pluginManagerSuppressed);
+			}
+			$output->writeln('<error>' . $e->getMessage() . '</error>');
+			return 1;
+		}
+		$output->writeln('<error>Error while resetting group</error>');
+		return 2;
+	}
+}