<?php

ob_start();
$TAB = 'FIREWALL';

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

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

// Get ipset lists
exec(HESTIA_CMD."v-list-firewall-ipset 'json'", $output, $return_var);
check_return_code($return_var, $output);
$data = json_decode(implode('', $output), true);
unset($output);

$ipset_lists=[];
foreach ($data as $key => $value) {
    if (isset($value['SUSPENDED']) && $value['SUSPENDED'] === 'yes') {
        continue;
    }
    if (isset($value['IP_VERSION']) && $value['IP_VERSION'] !== 'v4') {
        continue;
    }
    array_push($ipset_lists, ['name'=>$key]);
}
$ipset_lists_json=json_encode($ipset_lists);

// Check POST request
if (!empty($_POST['ok'])) {    // Check token
    // Check token
    verify_csrf($_POST);

    // Check empty fields
    if (empty($_POST['v_action'])) {
        $errors[] = _('action');
    }
    if (empty($_POST['v_protocol'])) {
        $errors[] = _('protocol');
    }
    if (empty($_POST['v_port']) && strlen($_POST['v_port']) == 0) {
        $errors[] = _('port');
    }
    if (empty($_POST['v_ip'])) {
        $errors[] = _('ip address');
    }
    if (!empty($errors[0])) {
        foreach ($errors as $i => $error) {
            if ($i == 0) {
                $error_msg = $error;
            } else {
                $error_msg = $error_msg.", ".$error;
            }
        }
        $_SESSION['error_msg'] = sprintf(_('Field "%s" can not be blank.'), $error_msg);
    }

    // Protect input
    $v_action = escapeshellarg($_POST['v_action']);
    $v_protocol = escapeshellarg($_POST['v_protocol']);
    $v_port = str_replace(" ", ",", $_POST['v_port']);
    $v_port = preg_replace('/\,+/', ',', $v_port);
    $v_port = trim($v_port, ",");
    $v_port = escapeshellarg($v_port);
    $v_ip = escapeshellarg($_POST['v_ip']);
    $v_comment = escapeshellarg($_POST['v_comment']);

    // Add firewall rule
    if (empty($_SESSION['error_msg'])) {
        exec(HESTIA_CMD."v-add-firewall-rule ".$v_action." ".$v_ip." ".$v_port." ".$v_protocol." ".$v_comment, $output, $return_var);
        check_return_code($return_var, $output);
        unset($output);
    }

    // Flush field values on success
    if (empty($_SESSION['error_msg'])) {
        $_SESSION['ok_msg'] = _('RULE_CREATED_OK');
        unset($v_port);
        unset($v_ip);
        unset($v_comment);
    }
}

if (empty($v_action)) {
    $v_action = '';
}
if (empty($v_protocol)) {
    $v_protocol = '';
}
if (empty($v_port)) {
    $v_port = '';
}
if (empty($v_ip)) {
    $v_ip = '';
}
if (empty($v_comment)) {
    $v_comment = '';
}

// Render
render_page($user, $TAB, 'add_firewall');

// Flush session messages
unset($_SESSION['error_msg']);
unset($_SESSION['ok_msg']);