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See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 3.9.x will end* 10 May 2021 (12 months).
  • Bug fixes for security issues in 3.9.x will end* 8 May 2023 (36 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
/ -> draftfile.php (source)
<?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/>.

/**
 * This script serves draft files of current user
 *
 * @package    core
 * @subpackage file
 * @copyright  2008 Petr Skoda (http://skodak.org)
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

// disable moodle specific debug messages and any errors in output
define('NO_DEBUG_DISPLAY', true);

require_once('config.php');
require_once('lib/filelib.php');

require_login();
if (isguestuser()) {
< print_error('noguest');
> throw new \moodle_exception('noguest');
} $relativepath = get_file_argument(); $preview = optional_param('preview', null, PARAM_ALPHANUM); // relative path must start with '/' if (!$relativepath) {
< print_error('invalidargorconf');
> throw new \moodle_exception('invalidargorconf');
} else if ($relativepath[0] != '/') {
< print_error('pathdoesnotstartslash');
> throw new \moodle_exception('pathdoesnotstartslash');
} // extract relative path components $args = explode('/', ltrim($relativepath, '/')); if (count($args) == 0) { // always at least user id
< print_error('invalidarguments');
> throw new \moodle_exception('invalidarguments');
} $contextid = (int)array_shift($args); $component = array_shift($args); $filearea = array_shift($args); $draftid = (int)array_shift($args); if ($component !== 'user' or $filearea !== 'draft') { send_file_not_found(); } $context = context::instance_by_id($contextid); if ($context->contextlevel != CONTEXT_USER) { send_file_not_found(); } $userid = $context->instanceid; if ($USER->id != $userid) {
< print_error('invaliduserid');
> throw new \moodle_exception('invaliduserid');
} $fs = get_file_storage(); $relativepath = implode('/', $args); $fullpath = "/$context->id/user/draft/$draftid/$relativepath"; if (!$file = $fs->get_file_by_hash(sha1($fullpath)) or $file->get_filename() == '.') { send_file_not_found(); } // ======================================== // finally send the file // ======================================== \core\session\manager::write_close(); // Unlock session during file serving. send_stored_file($file, 0, false, true, array('preview' => $preview)); // force download - security first!