hestiacp/web/list/rrd/ajax.php

<?php
use function Hestiacp\quoteshellarg\quoteshellarg;
// Main include
include($_SERVER['DOCUMENT_ROOT']."/inc/main.php");

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

if (empty($_POST['period'])) {
    $period = "daily";
} else {
    if (in_array($_POST['period'] ,array('day', 'week','month','year'))) {
        $period=$_POST['period'];
    } else {
        $period = "daily";
    }
}

if (empty($_POST['service'])) {
    $service = "la";
} else {
    $service = $_POST['service'];
}

// Data
exec(HESTIA_CMD."v-export-rrd ".quoteshellarg($service)." ".quoteshellarg($period), $output, $return_var);
$data = json_decode(implode('', $output), true);
$data['service'] = $service;
echo json_encode($data);