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See Release Notes

  • Bug fixes for general core bugs in 4.2.x will end 22 April 2024 (12 months).
  • Bug fixes for security issues in 4.2.x will end 7 October 2024 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.1.x is supported too.
<?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/>.

/**
 * Helper class.
 *
 * @package    quizaccess_seb
 * @author     Dmitrii Metelkin <dmitriim@catalyst-au.net>
 * @copyright  2020 Catalyst IT
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

namespace quizaccess_seb;


use CFPropertyList\CFPropertyList;

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

/**
 * Helper class.
 *
 * @copyright  2020 Catalyst IT
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class helper {
    /**
     * Get a filler icon for display in the actions column of a table.
     *
     * @param string $url The URL for the icon.
     * @param string $icon The icon identifier.
     * @param string $alt The alt text for the icon.
     * @param string $iconcomponent The icon component.
     * @param array $options Display options.
     * @return string
     */
< public static function format_icon_link($url, $icon, $alt, $iconcomponent = 'moodle', $options = array()) {
> public static function format_icon_link($url, $icon, $alt, $iconcomponent = 'moodle', $options = []) {
global $OUTPUT; return $OUTPUT->action_icon( $url, new \pix_icon($icon, $alt, $iconcomponent, [ 'title' => $alt, ]), null, $options ); } /** * Validate seb config string. * * @param string $sebconfig * @return bool */ public static function is_valid_seb_config(string $sebconfig) : bool { $result = true; set_error_handler(function($errno, $errstr, $errfile, $errline ){ throw new \ErrorException($errstr, $errno, 0, $errfile, $errline); }); $plist = new CFPropertyList(); try { $plist->parse($sebconfig); } catch (\ErrorException $e) { $result = false; } catch (\Exception $e) { $result = false; } restore_error_handler(); return $result; } /** * A helper function to get a list of seb config file headers. * * @param int|null $expiretime Unix timestamp * @return array */ public static function get_seb_file_headers(int $expiretime = null) : array { if (is_null($expiretime)) { $expiretime = time(); } $headers = []; $headers[] = 'Cache-Control: private, max-age=1, no-transform'; $headers[] = 'Expires: '. gmdate('D, d M Y H:i:s', $expiretime) .' GMT'; $headers[] = 'Pragma: no-cache'; $headers[] = 'Content-Disposition: attachment; filename=config.seb'; $headers[] = 'Content-Type: application/seb'; return $headers; } /** * Get seb config content for a particular quiz. This method checks caps. * * @param string $cmid The course module ID for a quiz with config. * @return string SEB config string. */ public static function get_seb_config_content(string $cmid) : string { // Try and get the course module. $cm = get_coursemodule_from_id('quiz', $cmid, 0, false, MUST_EXIST); // Make sure the user is logged in and has access to the module. require_login($cm->course, false, $cm); // Retrieve the config for quiz.
< $config = quiz_settings::get_config_by_quiz_id($cm->instance);
> $config = seb_quiz_settings::get_config_by_quiz_id($cm->instance);
if (empty($config)) { throw new \moodle_exception('noconfigfound', 'quizaccess_seb', '', $cm->id); } return $config; } /** * Serve a file to browser for download. * * @param string $contents Contents of file. */ public static function send_seb_config_file(string $contents) { // We can now send the file back to the browser. foreach (self::get_seb_file_headers() as $header) { header($header); } echo($contents); } }