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.
/**
* Provides the {@link core_form\util} class.
*
* @package core_form
* @copyright 2019 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace core_form;
defined('MOODLE_INTERNAL') || die();
/**
* General utility class for form-related methods.
*
* @copyright 2019 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class util {
/**
* This function should be called if a form submit results in a file download (i.e. with the
* Content-Disposition: attachment header) instead of navigating to a new page, before the
* file download is sent. It will set a cookie which is used to inform page javascript in
* submit.js.
*
* You may call this function in scripts which might not necessarily be called from forms; it
* will only set the cookie if there is a POST request from a form.
*
* This is automatically called from various points in Moodle such as send_file_xx functions
* in filelib.php.
*/
public static function form_download_complete() {
// If this doesn't look like a Moodle QuickForms request, ignore.
$quickform = false;
foreach ($_POST as $name => $value) {
if (preg_match('~^_qf__~', $name)) {
$quickform = true;
break;
}
}
if (!$quickform) {
return;
}
// Set a session cookie.
setcookie('moodledownload_' . sesskey(), time());
}
}