mirror of
https://github.com/catalyst/moodle-auth_outage.git
synced 2026-05-16 21:41:31 +02:00
89 lines
2.9 KiB
PHP
89 lines
2.9 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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* This page is used to fetch files while in maintenance mode.
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*
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* It should avoid as much as possible using code Moodle API.
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*
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* @package auth_outage
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* @author Daniel Thee Roperto <daniel.roperto@catalyst-au.net>
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* @copyright 2016 Catalyst IT
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*
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* @var stdClass $CFG
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*/
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// This file does not use Moodle initialization as a requirement. Supress Warning.
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define('MOODLE_INTERNAL', true);
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defined('MOODLE_INTERNAL') || die();
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// File should have at least 3 characters as we will check the extension below.
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if (!isset($_GET['file'])) {
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http_response_code(400);
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die('Missing file parameter.');
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}
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$parts = explode('.', $_GET['file']);
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if (count($parts) != 2) {
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http_response_code(400);
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die('Invalid file requested.');
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}
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$mime = base64_decode($parts[1]);
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// Detect type, we only support css or PNG images.
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header('Content-Type: ' . $mime);
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// Use cache.
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$lifetime = 60 * 60 * 24; // 1 day.
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header('Expires: ' . gmdate('D, d M Y H:i:s', time() + $lifetime) . ' GMT');
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header('Pragma: ');
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header('Cache-Control: public, max-age=' . $lifetime);
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header('Accept-Ranges: none');
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/**
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* Callback used in bootstrap.
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*/
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function auth_outage_bootstrap_callback() {
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// Not using classes as classloader has not been initialized yet. Keep it minimalist.
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require_once(__DIR__ . '/lib.php');
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$file = auth_outage_get_climaintenance_resource_file($_GET['file']);
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if (is_null($file)) {
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// @codingStandardsIgnoreStart
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error_log('Invalid file: '.$_GET['file']);
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// @codingStandardsIgnoreEnd
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http_response_code(404);
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die('File not found.');
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}
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// Ensure there is nothing in the output buffer.
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// otherwise the file will not be read correctly.
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ob_clean();
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readfile($file);
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exit(0);
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}
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// @codingStandardsIgnoreStart
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require_once(__DIR__.'/../../config.php');
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// @codingStandardsIgnoreEnd
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// We should never reach here if config.php and auth/outage/bootstrap.php intercepted it correctly.
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// If config.php did not execute the callback function we can use the debugging function here.
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debugging('Your config.php is not properly configured for auth/outage plugin. ' .
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'Please check the plugin settings for information.');
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