Merge branch 'w04_MDL-25855_20_filerequire' of git://github.com/skodak/moodle
[moodle.git] / draftfile.php
CommitLineData
d92e7c4d 1<?php
2
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.
14//
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/>.
17
18/**
19a2b80f 19 * This script serves draft files of current user
d92e7c4d 20 *
64f93798 21 * @package core
d92e7c4d 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
25 */
26
2e9b772f
PS
27// disable moodle specific debug messages and any errors in output
28define('NO_DEBUG_DISPLAY', true);
29
d92e7c4d 30require_once('config.php');
31require_once('lib/filelib.php');
32
33require_login();
34if (isguestuser()) {
35 print_error('noguest');
36}
37
d92e7c4d 38$relativepath = get_file_argument();
39
40// relative path must start with '/'
41if (!$relativepath) {
42 print_error('invalidargorconf');
43} else if ($relativepath{0} != '/') {
44 print_error('pathdoesnotstartslash');
45}
46
47// extract relative path components
48$args = explode('/', ltrim($relativepath, '/'));
49
50if (count($args) == 0) { // always at least user id
51 print_error('invalidarguments');
52}
53
54$contextid = (int)array_shift($args);
64f93798
PS
55$component = array_shift($args);
56$filearea = array_shift($args);
57$draftid = (int)array_shift($args);
58
59if ($component !== 'user' or $filearea !== 'draft') {
60 send_file_not_found();
61}
d92e7c4d 62
63$context = get_context_instance_by_id($contextid);
64if ($context->contextlevel != CONTEXT_USER) {
64f93798 65 send_file_not_found();
d92e7c4d 66}
67
68$userid = $context->instanceid;
69if ($USER->id != $userid) {
70 print_error('invaliduserid');
71}
72
4149edbd 73
d92e7c4d 74$fs = get_file_storage();
7070268e 75
64f93798
PS
76$relativepath = implode('/', $args);
77$fullpath = "/$context->id/user/draft/$draftid/$relativepath";
7070268e 78
d92e7c4d 79if (!$file = $fs->get_file_by_hash(sha1($fullpath)) or $file->get_filename() == '.') {
80 send_file_not_found();
81}
7070268e 82
d92e7c4d 83// ========================================
84// finally send the file
85// ========================================
86session_get_instance()->write_close(); // unlock session during fileserving
87send_stored_file($file, 0, false, true); // force download - security first!