90 lines
2.3 KiB
PHP
90 lines
2.3 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Vincent Petry <pvince81@owncloud.com>
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*
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* @license AGPL-3.0
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*
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* This code 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, version 3,
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* as published by the Free Software Foundation.
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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, version 3,
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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\DAV\Connector\Sabre;
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use OCP\IConfig;
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use Sabre\DAV\Exception\ServiceUnavailable;
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use Sabre\DAV\ServerPlugin;
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class MaintenancePlugin extends ServerPlugin {
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/** @var IConfig */
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private $config;
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/**
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* Reference to main server object
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*
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* @var Server
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*/
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private $server;
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/**
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* @param IConfig $config
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*/
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public function __construct(IConfig $config = null) {
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$this->config = $config;
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if (is_null($config)) {
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$this->config = \OC::$server->getConfig();
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}
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}
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/**
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* This initializes the plugin.
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*
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* This function is called by \Sabre\DAV\Server, after
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* addPlugin is called.
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*
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* This method should set up the required event subscriptions.
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*
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* @param \Sabre\DAV\Server $server
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* @return void
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*/
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public function initialize(\Sabre\DAV\Server $server) {
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$this->server = $server;
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$this->server->on('beforeMethod', array($this, 'checkMaintenanceMode'), 1);
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}
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/**
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* This method is called before any HTTP method and returns http status code 503
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* in case the system is in maintenance mode.
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*
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* @throws ServiceUnavailable
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* @return bool
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*/
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public function checkMaintenanceMode() {
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if ($this->config->getSystemValue('maintenance', false)) {
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throw new ServiceUnavailable('System in maintenance mode.');
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}
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if (\OC::checkUpgrade(false)) {
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throw new ServiceUnavailable('Upgrade needed');
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}
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return true;
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}
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}
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