owncloud/core

<?php
/**
 * @author Lukas Reschke <lukas@statuscode.ch>
 * @author Thomas Müller <thomas.mueller@tmit.eu>
 *
 * @copyright Copyright (c) 2018, ownCloud GmbH
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * 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, version 3,
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */

namespace OCA\UpdateNotification;

use OC\Updater\VersionCheck;

class UpdateChecker {
    /** @var VersionCheck */
    private $updater;

    /**
     * @param VersionCheck $updater
     */
    public function __construct(VersionCheck $updater) {
        $this->updater = $updater;
    }

    /**
     * @return array
     */
    public function getUpdateState() {
        $data = $this->updater->check();
        $result = [];

        if (isset($data['version']) && $data['version'] !== '' && $data['version'] !== []) {
            $result['updateAvailable'] = true;
            $result['updateVersion'] = $data['versionstring'];
            if (\substr($data['web'], 0, 8) === 'https://') {
                $result['updateLink'] = $data['web'];
            }

            return $result;
        }

        return [];
    }

    /**
     * @param array $data
     */
    public function getJavaScript(array $data) {
        $data['array']['oc_updateState'] =  \json_encode([
            'updateAvailable' => true,
            'updateVersion' => $this->getUpdateState()['updateVersion'],
            'updateLink' => isset($this->getUpdateState()['updateLink']) ? $this->getUpdateState()['updateLink'] : '',
        ]);
    }
}