TB2X Firewall

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Embed Code

WordPress plugin

<?php
/*
Plugin Name: TB2X Firewall
Description: WordPress firewall die verbindt met TB2X cloud (tb2x.com) voor IP/country blocking.
Version: 1.1
Author: TB2X
*/
if (!defined('ABSPATH')) { exit; }

add_action('init', 'tb2x_firewall_check', 0);

function tb2x_firewall_check() {
    static $checked = false;
    if ($checked) return;
    $checked = true;

    if (is_user_logged_in()) return;
    if (get_option('firewall_enabled', '1') !== '1') return;

    $agent       = $_SERVER['HTTP_USER_AGENT'] ?? '';
    $ipToCheck   = $_SERVER['REMOTE_ADDR'] ?? '';
    $countryCode = $_SERVER['HTTP_GEOIP_COUNTRY_CODE'] ?? ($_SERVER['GEOIP_COUNTRY_CODE'] ?? 'N/A');

    $scheme  = (empty($_SERVER['HTTPS']) || $_SERVER['HTTPS'] === 'off') ? 'http' : 'https';
    $host    = $_SERVER['HTTP_HOST'] ?? '';
    $uri     = $_SERVER['REQUEST_URI'] ?? '/';
    $website = $scheme . '://' . $host . $uri;

    if ($ipToCheck === '' || $host === '') return;

    $url = 'https://www.tb2x.com/admin/firewall.php?' . http_build_query([
        'ip'      => $ipToCheck,
        'country' => $countryCode,
        'website' => $website,
        'agent'   => $agent,
    ]);

    $response = tb2x_make_curl_request($url, 8);

    // fail-open if TB2X unreachable
    if (!$response || !is_array($response)) return;

    if (!empty($response['blocked'])) {
        wp_redirect('https://www.google.com', 302);
        exit;
    }
}

function tb2x_make_curl_request($url, $timeout = 10) {
    if (!function_exists('curl_init')) return null;

    $ch = curl_init($url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_TIMEOUT, (int)$timeout);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 4);

    $response = curl_exec($ch);
    if (curl_errno($ch)) { curl_close($ch); return null; }

    $httpCode = (int)curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);

    if ($httpCode !== 200 || !$response) return null;

    $data = json_decode($response, true);
    if (json_last_error() !== JSON_ERROR_NONE) return null;

    return $data;
}

Non-WordPress snippet

<?php
// TB2X Firewall Snippet (non-WordPress PHP)
// Plaats zo hoog mogelijk (bovenaan index.php / bootstrap / init)

$ip = $_SERVER['REMOTE_ADDR'] ?? '';
$agent = $_SERVER['HTTP_USER_AGENT'] ?? '';
$country = $_SERVER['HTTP_GEOIP_COUNTRY_CODE'] ?? ($_SERVER['GEOIP_COUNTRY_CODE'] ?? 'N/A');
$scheme = (empty($_SERVER['HTTPS']) || $_SERVER['HTTPS']==='off') ? 'http' : 'https';
$website = $scheme.'://'.($_SERVER['HTTP_HOST'] ?? '').($_SERVER['REQUEST_URI'] ?? '/');

$url = 'https://www.tb2x.com/admin/firewall.php?' . http_build_query([
  'ip'=>$ip,'country'=>$country,'website'=>$website,'agent'=>$agent
]);

if (function_exists('curl_init')) {
  $ch = curl_init($url);
  curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_TIMEOUT => 8,
    CURLOPT_CONNECTTIMEOUT => 4,
  ]);
  $resp = curl_exec($ch);
  $code = (int)curl_getinfo($ch, CURLINFO_HTTP_CODE);
  curl_close($ch);

  if ($code === 200 && $resp) {
    $data = json_decode($resp, true);
    if (!empty($data['blocked'])) {
      header('Location: https://www.google.com', true, 302);
      exit;
    }
  }
}

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