Merge branch 'wip-MDL-60241-34' of git://github.com/marinaglancy/moodle into MOODLE_3...
[moodle.git] / draftfile.php
blobce61d199e0cd5526ece6cfbf741855da221c8336
1 <?php
3 // This file is part of Moodle - http://moodle.org/
4 //
5 // Moodle is free software: you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation, either version 3 of the License, or
8 // (at your option) any later version.
9 //
10 // Moodle is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU General Public License for more details.
15 // You should have received a copy of the GNU General Public License
16 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
18 /**
19 * This script serves draft files of current user
21 * @package core
22 * @subpackage file
23 * @copyright 2008 Petr Skoda (http://skodak.org)
24 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
27 // disable moodle specific debug messages and any errors in output
28 define('NO_DEBUG_DISPLAY', true);
30 require_once('config.php');
31 require_once('lib/filelib.php');
33 require_login();
34 if (isguestuser()) {
35 print_error('noguest');
38 $relativepath = get_file_argument();
39 $preview = optional_param('preview', null, PARAM_ALPHANUM);
41 // relative path must start with '/'
42 if (!$relativepath) {
43 print_error('invalidargorconf');
44 } else if ($relativepath{0} != '/') {
45 print_error('pathdoesnotstartslash');
48 // extract relative path components
49 $args = explode('/', ltrim($relativepath, '/'));
51 if (count($args) == 0) { // always at least user id
52 print_error('invalidarguments');
55 $contextid = (int)array_shift($args);
56 $component = array_shift($args);
57 $filearea = array_shift($args);
58 $draftid = (int)array_shift($args);
60 if ($component !== 'user' or $filearea !== 'draft') {
61 send_file_not_found();
64 $context = context::instance_by_id($contextid);
65 if ($context->contextlevel != CONTEXT_USER) {
66 send_file_not_found();
69 $userid = $context->instanceid;
70 if ($USER->id != $userid) {
71 print_error('invaliduserid');
75 $fs = get_file_storage();
77 $relativepath = implode('/', $args);
78 $fullpath = "/$context->id/user/draft/$draftid/$relativepath";
80 if (!$file = $fs->get_file_by_hash(sha1($fullpath)) or $file->get_filename() == '.') {
81 send_file_not_found();
84 // ========================================
85 // finally send the file
86 // ========================================
87 \core\session\manager::write_close(); // Unlock session during file serving.
88 send_stored_file($file, 0, false, true, array('preview' => $preview)); // force download - security first!