138 lines
4.0 KiB
PHP
138 lines
4.0 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle 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 General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Main functions of the plugin.
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*
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* @copyright 2018 "Valentin Popov" <info@valentineus.link>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @package tool_apisiteadmins
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*/
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defined('MOODLE_INTERNAL') || die();
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/**
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* Functions for working with the list of administrators.
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*
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* @copyright 2018 "Valentin Popov" <info@valentineus.link>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @package tool_apisiteadmins
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*/
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class tool_apisiteadmins {
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/**
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* Adds a user to the list of administrators.
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*
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* @param number $userid System user ID
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* @return boolean Result of execution
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*/
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public static function add_user($userid) {
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if (!core_user::is_real_user($userid, true)) {
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print_error("invaliduser", "error", null);
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}
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$userid = (int)$userid;
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$admins = self::get_list();
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$admins[$userid] = $userid;
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self::create_event("administrator_added", $userid);
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return self::save_changes($admins);
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}
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/**
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* Removes a user from the list of administrators.
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*
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* @param number $userid System user ID
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* @return boolean Result of execution
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*/
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public static function remove_user($userid) {
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if (!core_user::is_real_user($userid, true)) {
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print_error("invaliduser", "error", null);
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}
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$userid = (int)$userid;
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$admins = self::get_list();
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unset($admins[$userid]);
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self::create_event("administrator_deleted", $userid);
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return self::save_changes($admins);
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}
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/**
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* Registers the user as the primary administrator.
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*
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* @param number $userid System user ID
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* @return boolean Result of execution
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*/
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public static function set_main($userid) {
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if (!core_user::is_real_user($userid, true)) {
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print_error("invaliduser", "error", null);
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}
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$userid = (int)$userid;
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$admins = self::get_list();
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if (isset($admins[$userid])) {
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unset($admins[$userid]);
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array_unshift($admins, $userid);
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}
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self::create_event("administrator_changed", $userid);
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return self::save_changes($admins);
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}
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/**
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* Creates an entry in the system log.
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*
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* @param string $name Event name
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* @param number $userid System user ID
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*/
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private static function create_event($name, $userid) {
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$function = "tool_apisiteadmins\\event\\$name";
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$function::create(array("relateduserid" => $userid))->trigger();
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}
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/**
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* Applies the changes on the site.
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*
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* @return array List of administrators
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*/
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private static function get_list() {
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$config = get_config("core", "siteadmins");
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$result = array();
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foreach (explode(",", $config) as $id) {
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$id = (int)$id;
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if (!empty($id)) {
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$result[$id] = $id;
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}
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}
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return $result;
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}
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/**
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* Applies the changes on the site.
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*
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* @param array $admins List of administrators
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*/
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private static function save_changes($admins) {
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if (empty($admins)) {
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$admins = self::get_list();
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}
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return set_config("siteadmins", implode(",", $admins));
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}
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}
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