function writeLog($log_array = array(), $filename = 'joomlalms_error_log.txt', $format = 'Date: {DATE} {TIME} {COMMENT}')
{
jimport('joomla.error.log');
$log =& JLog::getInstance($filename, array('format' => $format));
$log_array[] = 'Browser and OS information: ' . $_SERVER['HTTP_USER_AGENT'];
$log_array[] = 'IP address: ' . $_SERVER['REMOTE_ADDR'];
$log_array[] = 'GET:' . "\n" . '--------------------------------' . "\n" . JLMSErrorLog::array_to_str($_GET) . '--------------------------------';
$log_array[] = 'POST:' . "\n" . '--------------------------------' . "\n" . JLMSErrorLog::array_to_str($_POST) . '--------------------------------';
$log_array[] = 'COOKIE:' . "\n" . '--------------------------------' . "\n" . JLMSErrorLog::array_to_str($_COOKIE) . '--------------------------------';
$log_array[] = '###########################################################################';
$log_text = "\n" . implode("\n", $log_array) . "\n";
$status = $log->addEntry(array('COMMENT' => $log_text));
return $status;
}
function JLMS_DatamodelSCORM($option)
{
global $JLMS_DB, $Itemid, $JLMS_CONFIG;
$user = JLMSFactory::getUser();
$user_id = $user->get('id');
if (!$user_id) {
$ssid = strval(mosGetParam($_REQUEST, 'ssid', ''));
if ($ssid) {
$ssid_parts = explode('_', $ssid);
if (count($ssid_parts) == 2) {
$pre_userid = isset($ssid_parts[0]) ? $ssid_parts[0] : 0;
$pre_hash = isset($ssid_parts[1]) ? $ssid_parts[1] : 'xxxxx';
$user_agent = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '';
$hash_check = md5($pre_userid . '_' . $user_agent);
if ($hash_check == $pre_hash) {
$user_id = $pre_userid;
}
}
}
}
if (!$user_id) {
$log_scorm_id = intval(mosGetParam($_REQUEST, 'id', 0)) ? intval(mosGetParam($_REQUEST, 'id', 0)) : intval(mosGetParam($_REQUEST, 'scorm_id', 0));
$log_course_id = $JLMS_CONFIG->get('course_id') ? $JLMS_CONFIG->get('course_id') : intval(mosGetParam($_REQUEST, 'course_id', 0));
JLMSErrorLog::writeSCORMLog('SCORM tracking error - user not logged in (session hash check failed)', $log_course_id, $log_scorm_id);
exit;
}
$id = intval(mosGetParam($_REQUEST, 'id', 0));
$skip_resume = intval(mosGetParam($_REQUEST, 'skip_resume', 0));
if ($id) {
$query = "SELECT * FROM #__lms_n_scorm WHERE id = {$id}";
$JLMS_DB->SetQuery($query);
$scorm = $JLMS_DB->LoadObject();
if (is_object($scorm)) {
$scoid = intval(mosGetParam($_REQUEST, 'scoid', 0));
$attempt = intval(mosGetParam($_REQUEST, 'attempt', 0));
if ($scoid) {
$result = true;
$request = null;
// (DEN)
//if (has_capability('mod/scorm:savetrack', get_context_instance(CONTEXT_MODULE,$cm->id))) {
if (true) {
foreach ($_POST as $element => $val_post) {
$element = str_replace('__', '.', $element);
// (DEN) (i'm insert 'get_magic_quotes_gpc'). 15.03.2007
$value = get_magic_quotes_gpc() ? stripslashes($val_post) : $val_post;
if (substr($element, 0, 3) == 'cmi') {
$element = preg_replace('/N(\\d+)/', ".\$1", $element);
$result = scorm_insert_track($user_id, $scorm->id, $scoid, $attempt, $element, $value) && $result;
}
if (substr($element, 0, 15) == 'adl.nav.request') {
// SCORM 2004 Sequencing Request
require_once _JOOMLMS_FRONT_HOME . '/includes/n_scorm/datamodels/scorm_13lib.php';
$search = array('@continue@', '@previous@', '@\\{target=(\\S+)\\}choice@', '@exit@', '@exitAll@', '@abandon@', '@abandonAll@');
$replace = array('continue_', 'previous_', '\\1', 'exit_', 'exitall_', 'abandon_', 'abandonall');
$action = preg_replace($search, $replace, $value);
if ($action != $value) {
require_once _JOOMLMS_FRONT_HOME . '/includes/n_scorm/datamodels/sequencinglib.php';
// Evaluating navigation request
$valid = scorm_seq_overall($scoid, $user_id, $action);
// Set valid request
$search = array('@continue@', '@previous@', '@\\{target=(\\S+)\\}choice@');
$replace = array('true', 'true', 'true');
$matched = preg_replace($search, $replace, $value);
if ($matched == 'true') {
$request = 'adl.nav.request_valid["' . $action . '"] = "' . $valid . '";';
}
}
}
}
/* 23 November 2007 (DEN) LMS resuming fix (for 'by the best attemp' tracking method */
global $JLMS_CONFIG;
$course_params = $JLMS_CONFIG->get('course_params');
$params = new JLMSParameters($course_params);
if ($params->get('track_type', 0) == 1 && !$skip_resume) {
//by the best attempt + skip_resume (24march2010)
if ($attempt > 1) {
$query = "SELECT * FROM #__lms_n_scorm_scoes_track WHERE userid = '{$user_id}' AND scormid = '{$scorm->id}' AND scoid = '{$scoid}' AND attempt = '" . ($attempt - 1) . "'";
$JLMS_DB->SetQuery($query);
$prev_tracks = $JLMS_DB->LoadObjectList();
foreach ($prev_tracks as $prev_track) {
$query = "SELECT count(*) FROM #__lms_n_scorm_scoes_track WHERE userid = '{$user_id}' AND scormid = '{$scorm->id}' AND scoid = '{$scoid}' AND attempt = '{$attempt}' AND element = '{$prev_track->element}'";
$JLMS_DB->SetQuery($query);
$ssss = $JLMS_DB->LoadResult();
if (!$ssss) {
$track = new stdClass();
$track->userid = $user_id;
$track->scormid = $scorm->id;
$track->scoid = $scoid;
$track->attempt = $attempt;
$track->element = $prev_track->element;
$track->value = $prev_track->value;
$track->timemodified = $prev_track->timemodified;
$JLMS_DB->InsertObject('#__lms_n_scorm_scoes_track', $track, 'id');
}
}
}
//TODO: do not resume SCORM if it is played as LPath step and LPath was restarted !!!
}
/* End of LMS resuming fix */
}
if ($result) {
echo "true\n0";
} else {
echo "false\n101";
}
if ($request != null) {
echo "\n" . $request;
}
}
}
}
exit;
}