<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Check API manager
 *
 * @package    core
 * @category   check
 * @copyright  2020 Brendan Heywood <brendan@catalyst-au.net>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

namespace core\check;

defined('MOODLE_INTERNAL') || die();

/**
 * Check API manager
 *
 * @package    core
 * @category   check
 * @copyright  2020 Brendan Heywood <brendan@catalyst-au.net>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class manager {

    /**
     * The list of valid check types
     */
    public const TYPES = ['status', 'security', 'performance'];

    /**
     * Return all status checks
     *
     * @param string $type of checks to fetch
     * @return array of check objects
     */
    public static function get_checks(string $type): array {
        if (!in_array($type, self::TYPES)) {
            throw new \moodle_exception("Invalid check type '$type'");
        }
        $method = 'get_' . $type . '_checks';
        $checks = self::$method();
        return $checks;
    }

    /**
     * Return all performance checks
     *
     * @return array of check objects
     */
    static public function get_performance_checks() : array {
        $checks = [
            new performance\designermode(),
            new performance\cachejs(),
            new performance\debugging(),
            new performance\backups(),
            new performance\stats(),

>             new performance\dbschema(),


        ];

        // Any plugin can add status checks to this report by implementing a callback
        // <component>_status_checks() which returns a check object.
        $morechecks = get_plugins_with_function('performance_checks', 'lib.php');
        foreach ($morechecks as $plugintype => $plugins) {
            foreach ($plugins as $plugin => $pluginfunction) {
                $result = $pluginfunction();
                foreach ($result as $check) {
                    $check->set_component($plugintype . '_' . $plugin);
                    $checks[] = $check;
                }
            }
        }
        return $checks;
    }

    /**
     * Return all status checks
     *
     * @return array of check objects
     */
    public static function get_status_checks(): array {
        $checks = [
            new environment\environment(),
            new environment\upgradecheck(),

>             new environment\antivirus(),


        ];

        // Any plugin can add status checks to this report by implementing a callback
        // <component>_status_checks() which returns a check object.
        $morechecks = get_plugins_with_function('status_checks', 'lib.php');
        foreach ($morechecks as $plugintype => $plugins) {
            foreach ($plugins as $plugin => $pluginfunction) {
                $result = $pluginfunction();
                foreach ($result as $check) {
                    $check->set_component($plugintype . '_' . $plugin);
                    $checks[] = $check;
                }
            }
        }
        return $checks;
    }

    /**
     * Return all security checks
     *
     * @return array of check objects
     */
    public static function get_security_checks(): array {
        $checks = [
            new environment\displayerrors(),
            new environment\unsecuredataroot(),
            new environment\publicpaths(),
            new environment\configrw(),
            new environment\preventexecpath(),

<             new security\mediafilterswf(),


            new security\embed(),
            new security\openprofiles(),
            new security\crawlers(),
            new security\passwordpolicy(),
            new security\emailchangeconfirmation(),
            new security\webcron(),
            new http\cookiesecure(),
            new access\riskadmin(),
            new access\riskxss(),
            new access\riskbackup(),
            new access\defaultuserrole(),
            new access\guestrole(),
            new access\frontpagerole(),
        ];
        // Any plugin can add security checks to this report by implementing a callback
        // <component>_security_checks() which returns a check object.
        $morechecks = get_plugins_with_function('security_checks', 'lib.php');
        foreach ($morechecks as $plugintype => $plugins) {
            foreach ($plugins as $plugin => $pluginfunction) {
                $result = $pluginfunction();
                foreach ($result as $check) {
                    $check->set_component($plugintype . '_' . $plugin);
                    $checks[] = $check;
                }
            }
        }
        return $checks;
    }
}

<