Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tree: 299aedfaf7
Fetching contributors…

Cannot retrieve contributors at this time

230 lines (207 sloc) 8.826 kb
<?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/>.
require_once('../../config.php');
require_once($CFG->dirroot.'/mod/scorm/locallib.php');
$id = optional_param('id', '', PARAM_INT); // Course Module ID, or
$a = optional_param('a', '', PARAM_INT); // scorm ID
$scoid = required_param('scoid', PARAM_INT); // sco ID
$delayseconds = 2; // Delay time before sco launch, used to give time to browser to define API
if (!empty($id)) {
if (! $cm = get_coursemodule_from_id('scorm', $id)) {
print_error('invalidcoursemodule');
}
if (! $course = $DB->get_record('course', array('id'=>$cm->course))) {
print_error('coursemisconf');
}
if (! $scorm = $DB->get_record('scorm', array('id'=>$cm->instance))) {
print_error('invalidcoursemodule');
}
} else if (!empty($a)) {
if (! $scorm = $DB->get_record('scorm', array('id'=>$a))) {
print_error('coursemisconf');
}
if (! $course = $DB->get_record('course', array('id'=>$scorm->course))) {
print_error('coursemisconf');
}
if (! $cm = get_coursemodule_from_instance('scorm', $scorm->id, $course->id)) {
print_error('invalidcoursemodule');
}
} else {
print_error('missingparameter');
}
$PAGE->set_url('/mod/scorm/loadSCO.php', array('scoid'=>$scoid, 'id'=>$cm->id));
if (!isloggedin()) { // Prevent login page from being shown in iframe.
// Using simple html instead of exceptions here as shown inside iframe/object.
echo html_writer::start_tag('html');
echo html_writer::tag('head', '');
echo html_writer::tag('body', get_string('loggedinnot'));
echo html_writer::end_tag('html');
exit;
}
require_login($course, false, $cm, false); // Call require_login anyway to set up globals correctly.
//check if scorm closed
$timenow = time();
if ($scorm->timeclose !=0) {
if ($scorm->timeopen > $timenow) {
print_error('notopenyet', 'scorm', null, userdate($scorm->timeopen));
} else if ($timenow > $scorm->timeclose) {
print_error('expired', 'scorm', null, userdate($scorm->timeclose));
}
}
$context = context_module::instance($cm->id);
if (!empty($scoid)) {
//
// Direct SCO request
//
if ($sco = scorm_get_sco($scoid)) {
if ($sco->launch == '') {
// Search for the next launchable sco
if ($scoes = $DB->get_records_select('scorm_scoes', "scorm = ? AND '.$DB->sql_isnotempty('scorm_scoes', 'launch', false, true).' AND id > ?", array($scorm->id, $sco->id), 'id ASC')) {
$sco = current($scoes);
}
}
}
}
//
// If no sco was found get the first of SCORM package
//
if (!isset($sco)) {
$scoes = $DB->get_records_select('scorm_scoes', "scorm = ? AND ".$DB->sql_isnotempty('scorm_scoes', 'launch', false, true), array($scorm->id), 'id ASC');
$sco = current($scoes);
}
if ($sco->scormtype == 'asset') {
$attempt = scorm_get_last_attempt($scorm->id, $USER->id);
$element = (scorm_version_check($scorm->version, SCORM_13)) ? 'cmi.completion_status':'cmi.core.lesson_status';
$value = 'completed';
$result = scorm_insert_track($USER->id, $scorm->id, $sco->id, $attempt, $element, $value);
}
//
// Forge SCO URL
//
$connector = '';
$version = substr($scorm->version, 0, 4);
if ((isset($sco->parameters) && (!empty($sco->parameters))) || ($version == 'AICC')) {
if (stripos($sco->launch, '?') !== false) {
$connector = '&';
} else {
$connector = '?';
}
if ((isset($sco->parameters) && (!empty($sco->parameters))) && ($sco->parameters[0] == '?')) {
$sco->parameters = substr($sco->parameters, 1);
}
}
if ($version == 'AICC') {
require_once("$CFG->dirroot/mod/scorm/datamodels/aicclib.php");
$aicc_sid = scorm_aicc_get_hacp_session($scorm->id);
if (empty($aicc_sid)) {
$aicc_sid = sesskey();
}
$sco_params = '';
if (isset($sco->parameters) && (!empty($sco->parameters))) {
$sco_params = '&'. $sco->parameters;
}
$launcher = $sco->launch.$connector.'aicc_sid='.$aicc_sid.'&aicc_url='.$CFG->wwwroot.'/mod/scorm/aicc.php'.$sco_params;
} else {
if (isset($sco->parameters) && (!empty($sco->parameters))) {
$launcher = $sco->launch.$connector.$sco->parameters;
} else {
$launcher = $sco->launch;
}
}
if (scorm_external_link($sco->launch)) {
//TODO: does this happen?
$result = $launcher;
} else if ($scorm->scormtype === SCORM_TYPE_EXTERNAL) {
// Remote learning activity
$result = dirname($scorm->reference).'/'.$launcher;
} else if ($scorm->scormtype === SCORM_TYPE_IMSREPOSITORY) {
// Repository
$result = $CFG->repositorywebroot.substr($scorm->reference, 1).'/'.$sco->launch;
} else if ($scorm->scormtype === SCORM_TYPE_LOCAL or $scorm->scormtype === SCORM_TYPE_LOCALSYNC) {
//note: do not convert this to use get_file_url() or moodle_url()
//SCORM does not work without slasharguments and moodle_url() encodes querystring vars
$result = "$CFG->wwwroot/pluginfile.php/$context->id/mod_scorm/content/$scorm->revision/$launcher";
}
add_to_log($course->id, 'scorm', 'launch', 'view.php?id='.$cm->id, $result, $cm->id);
// which API are we looking for
$LMS_api = (scorm_version_check($scorm->version, SCORM_12) || empty($scorm->version)) ? 'API' : 'API_1484_11';
header('Content-Type: text/html; charset=UTF-8');
?>
<html>
<head>
<title>LoadSCO</title>
<script type="text/javascript">
//<![CDATA[
var myApiHandle = null;
var myFindAPITries = 0;
function myGetAPIHandle() {
myFindAPITries = 0;
if (myApiHandle == null) {
myApiHandle = myGetAPI();
}
return myApiHandle;
}
function myFindAPI(win) {
while ((win.<?php echo $LMS_api; ?> == null) && (win.parent != null) && (win.parent != win)) {
myFindAPITries++;
// Note: 7 is an arbitrary number, but should be more than sufficient
if (myFindAPITries > 7) {
return null;
}
win = win.parent;
}
return win.<?php echo $LMS_api; ?>;
}
// hun for the API - needs to be loaded before we can launch the package
function myGetAPI() {
var theAPI = myFindAPI(window);
if ((theAPI == null) && (window.opener != null) && (typeof(window.opener) != "undefined")) {
theAPI = myFindAPI(window.opener);
}
if (theAPI == null) {
return null;
}
return theAPI;
}
function doredirect() {
if (myGetAPIHandle() != null) {
location = "<?php echo $result ?>";
}
else {
document.body.innerHTML = "<p><?php echo get_string('activityloading', 'scorm');?> <span id='countdown'><?php echo $delayseconds ?></span> <?php echo get_string('numseconds', 'moodle', '');?>. &nbsp; <img src='<?php echo $OUTPUT->pix_url('wait', 'scorm') ?>'><p>";
var e = document.getElementById("countdown");
var cSeconds = parseInt(e.innerHTML);
var timer = setInterval(function() {
if( cSeconds && myGetAPIHandle() == null ) {
e.innerHTML = --cSeconds;
} else {
clearInterval(timer);
document.body.innerHTML = "<p><?php echo get_string('activitypleasewait', 'scorm');?></p>";
location = "<?php echo $result ?>";
}
}, 1000);
}
}
//]]>
</script>
<noscript>
<meta http-equiv="refresh" content="0;url=<?php echo $result ?>" />
</noscript>
</head>
<body onload="doredirect();">
<p><?php echo get_string('activitypleasewait', 'scorm');?></p>
</body>
</html>
Jump to Line
Something went wrong with that request. Please try again.