echo "<message>Incomplete arguments</message>";
echo "</xml>";
}
} else {
echo "<xml>";
echo "<status>error</status>";
echo "<message>Invalid token</message>";
echo "</xml>";
}
break;
case 'lesson_info':
if (isset($_GET['token']) && checkToken($_GET['token'])) {
if (isset($_GET['lesson'])) {
try {
$lesson = new EfrontLesson($_GET['lesson']);
$info = $lesson->getStatisticInformation();
echo "<xml>";
echo "<general_info>";
echo "<name>" . $lesson->lesson['name'] . "</name>";
echo "<direction>" . $info['direction'] . "</direction>";
echo "<price>" . $info['price_string'] . "</price>";
echo "<language>" . $info['language'] . "</language>";
echo "</general_info>";
echo "</xml>";
} catch (Exception $e) {
echo "<xml>";
echo "<status>error</status>";
echo "<message>Lesson doesn't exist</message>";
echo "</xml>";
}
} else {
