hestiacp/web/copy/package/index.php

<?php
use function Hestiacp\quoteshellarg\quoteshellarg;

ob_start();
include($_SERVER['DOCUMENT_ROOT']."/inc/main.php");

// Check token
verify_csrf($_GET);

// Check user
if ($_SESSION['userContext'] != 'admin') {
    header("Location: /list/user");
    exit;
}

// Check package argument
if (empty($_GET['package'])) {
    header("Location: /list/package/");
    exit;
}

if ($_SESSION['userContext'] === 'admin') {
    if (!empty($_GET['package'])) {
        $v_package = quoteshellarg($_GET['package']);
        exec(HESTIA_CMD."v-copy-user-package ".$v_package." ".$v_package."-copy", $output, $return_var);
    }

    if ($return_var != 0) {
        $error = implode('<br>', $output);
        if (empty($error)) {
            $error = 'Error: unable to copy package.';
        }
        $_SESSION['error_msg'] = $error;
    }
    unset($output);
}

header("Location: /list/package/");
exit;