owncloud/core

<?php
/**
 * @author Andreas Fischer <bantu@owncloud.com>
 * @author Bart Visscher <bartv@thisnet.nl>
 * @author Frank Karlitschek <frank@karlitschek.de>
 * @author Joas Schilling <coding@schilljs.com>
 * @author Lukas Reschke <lukas@statuscode.ch>
 * @author Morris Jobke <hey@morrisjobke.de>
 * @author Philipp Kapfer <philipp.kapfer@gmx.at>
 * @author Robin Appelman <icewind@owncloud.com>
 * @author Robin McCorkell <robin@mccorkell.me.uk>
 * @author Thomas Müller <thomas.mueller@tmit.eu>
 * @author Vincent Petry <pvince81@owncloud.com>
 *
 * @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/>
 *
 */

use OCA\Files_External\AppInfo\Application;
use OCP\Files\External\Backend\Backend;

/**
 * Class to configure mount.json globally and for users
 */
class OC_Mount_Config extends \OC\Files\External\LegacyUtil {
    /** @var Application */
    public static $app;

    /**
     * Get backend dependency message
     * TODO: move into AppFramework along with templates
     *
     * @param Backend[] $backends
     * @return string
     */
    public static function dependencyMessage($backends) {
        $l = \OC::$server->getL10N('files_external');
        $message = '';
        $dependencyGroups = [];

        foreach ($backends as $backend) {
            foreach ($backend->checkDependencies() as $dependency) {
                if ($message = $dependency->getMessage()) {
                    $message .= '<br />' . $l->t('<b>Note:</b> ') . $message;
                } else {
                    $dependencyGroups[$dependency->getDependency()][] = $backend;
                }
            }
        }

        foreach ($dependencyGroups as $module => $dependants) {
            $backends = \implode(', ', \array_map(function ($backend) {
                return '<i>' . $backend->getText() . '</i>';
            }, $dependants));
            $message .= '<br />' . OC_Mount_Config::getSingleDependencyMessage($l, $module, $backends);
        }

        return $message;
    }

    /**
     * Returns a dependency missing message
     *
     * @param \OCP\IL10N $l
     * @param string $module
     * @param string $backend
     * @return string
     */
    private static function getSingleDependencyMessage(\OCP\IL10N $l, $module, $backend) {
        switch (\strtolower($module)) {
            case 'curl':
                return (string)$l->t('<b>Note:</b> The cURL support in PHP is not enabled or installed. Mounting of %s is not possible. Please ask your system administrator to install it.', $backend);
            default:
                return (string)$l->t('<b>Note:</b> "%s" is not installed. Mounting of %s is not possible. Please ask your system administrator to install it.', [$module, $backend]);
        }
    }
}