selfpaste/webroot/view/view.inc.php

<?php
/**
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the COMMON DEVELOPMENT AND DISTRIBUTION LICENSE
 *
 * You should have received a copy of the
 * COMMON DEVELOPMENT AND DISTRIBUTION LICENSE (CDDL) Version 1.0
 * along with this program.  If not, see http://www.sun.com/cddl/cddl.html
 *
 * 2019 - 2020 https://://www.bananas-playground.net/projekt/selfpaste
 */
if (file_exists($contentBody)) {
    header('Expires: 0');
    header('Cache-Control: must-revalidate');
    header('Pragma: public');
    readfile($contentBody);
    exit;
}
else {
    echo $contentBody;
}