1<?php
2// This file is part of Moodle - http://moodle.org/
3//
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.
8//
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.
13//
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/>.
16
17// This page is called via AJAX to repopulte the TOC when LMSFinish() is called.
18
19require_once('../../config.php');
20require_once($CFG->dirroot.'/mod/scorm/locallib.php');
21
22$id = optional_param('id', '', PARAM_INT);                  // Course Module ID, or
23$a = optional_param('a', '', PARAM_INT);                    // scorm ID
24$scoid = required_param('scoid', PARAM_INT);                // sco ID
25$attempt = required_param('attempt', PARAM_INT);            // attempt number
26$mode = optional_param('mode', 'normal', PARAM_ALPHA);      // navigation mode
27$currentorg = optional_param('currentorg', '', PARAM_RAW);  // selected organization.
28
29if (!empty($id)) {
30    if (! $cm = get_coursemodule_from_id('scorm', $id)) {
31        print_error('invalidcoursemodule');
32    }
33    if (! $course = $DB->get_record("course", array("id" => $cm->course))) {
34        print_error('coursemisconf');
35    }
36    if (! $scorm = $DB->get_record("scorm", array("id" => $cm->instance))) {
37        print_error('invalidcoursemodule');
38    }
39} else if (!empty($a)) {
40    if (! $scorm = $DB->get_record("scorm", array("id" => $a))) {
41        print_error('invalidcoursemodule');
42    }
43    if (! $course = $DB->get_record("course", array("id" => $scorm->course))) {
44        print_error('coursemisconf');
45    }
46    if (! $cm = get_coursemodule_from_instance("scorm", $scorm->id, $course->id)) {
47        print_error('invalidcoursemodule');
48    }
49} else {
50    print_error('missingparameter');
51}
52
53// PARAM_RAW is used for $currentorg, validate it against records stored in the table.
54if (!empty($currentorg)) {
55    if (!$DB->record_exists('scorm_scoes', array('scorm' => $scorm->id, 'identifier' => $currentorg))) {
56        $currentorg = '';
57    }
58}
59
60$PAGE->set_url('/mod/scorm/prereqs.php', array('scoid' => $scoid, 'attempt' => $attempt, 'id' => $cm->id));
61
62require_login($course, false, $cm);
63
64$scorm->version = strtolower(clean_param($scorm->version, PARAM_SAFEDIR));   // Just to be safe.
65if (!file_exists($CFG->dirroot.'/mod/scorm/datamodels/'.$scorm->version.'lib.php')) {
66    $scorm->version = 'scorm_12';
67}
68require_once($CFG->dirroot.'/mod/scorm/datamodels/'.$scorm->version.'lib.php');
69
70
71if (confirm_sesskey() && (!empty($scoid))) {
72    $result = true;
73    $request = null;
74    if (has_capability('mod/scorm:savetrack', context_module::instance($cm->id))) {
75        $result = scorm_get_toc($USER, $scorm, $cm->id, TOCJSLINK, $currentorg, $scoid, $mode, $attempt, true, false);
76        echo $result->toc;
77    }
78}
79