
<?
if (session_status() == PHP_SESSION_NONE) {
	session_start();
}
$rootDir = $_SERVER['DOCUMENT_ROOT'];

require_once $rootDir . '/session.php';
require_once $rootDir . '/email/classemail.php';

$session = new WebSession();
$currentUrl = "$_SERVER[REQUEST_URI]";
$currentPage = $_SERVER['PHP_SELF'];
$currentPage = str_replace('.php', '', $currentPage);
$actual_link = str_replace($currentPage, '', $currentUrl);
$actual_link = ltrim($actual_link, "/");
$actual_link = explode("?", $actual_link)[0];
$urlArray = explode("/", $actual_link);

$paperId = isset($urlArray[1]) && $urlArray[1] > 0 ? $urlArray[1] : null;
$paperSlug = isset($urlArray[0]) ? urldecode($urlArray[0]) : null;

if ($session->isLoggedInUserAlive()){
	header("Location: /past-paper-answers-user/$paperSlug/$paperId");
}

if (!is_numeric($paperId) && is_numeric($paperSlug)) {
	if (!isset($paperId)) $newPaperId = $urlArray[0];
	$newPaperSlug = isset($urlArray[1]) ? urldecode($urlArray[1]) : null;

	$email = new EmailClass();
	$email->notifyAdminOfInvalidPastPaperAnswerURL($refUrl, $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'], $newPaperId, $newPaperSlug);
	header("HTTP/1.1 301 Moved Permanently");
	header("Location: /past-papers-answer/$newPaperSlug/$newPaperId");
	exit();
}

include_once $rootDir . '/past-paper-answers-inner.php';
include_once "chatplugin.php";
?>