2 // This file is part of Moodle - http://moodle.org/
4 // Moodle is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
9 // Moodle is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
18 * This file contains the moodle hooks for the feedback file plugin
20 * @package assignfeedback_file
21 * @copyright 2012 NetSpot {@link http://www.netspot.com.au}
22 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
24 defined('MOODLE_INTERNAL') || die();
27 * Serves assignment feedback and other files.
29 * @param mixed $course course or id of the course
30 * @param mixed $cm course module or id of the course module
31 * @param context $context
32 * @param string $filearea
34 * @param bool $forcedownload
35 * @return bool false if file not found, does not return if found - just send the file
37 function assignfeedback_file_pluginfile($course, $cm, context $context, $filearea, $args, $forcedownload) {
40 if ($context->contextlevel != CONTEXT_MODULE) {
44 require_login($course, false, $cm);
45 $itemid = (int)array_shift($args);
46 $record = $DB->get_record('assign_grades', array('id'=>$itemid), 'userid,assignment', MUST_EXIST);
47 $userid = $record->userid;
50 if (!$assign = $DB->get_record('assign', array('id'=>$cm->instance))) {
54 if ($assign->id != $record->assignment) {
59 // check is users feedback or has grading permission
60 if ($USER->id != $userid and !has_capability('mod/assign:grade', $context)) {
64 $relativepath = implode('/', $args);
66 $fullpath = "/{$context->id}/assignfeedback_file/$filearea/$itemid/$relativepath";
68 $fs = get_file_storage();
69 if (!$file = $fs->get_file_by_hash(sha1($fullpath)) or $file->is_directory()) {
72 send_stored_file($file, 0, 0, true); // download MUST be forced - security!