Opencart kurulumdaki çıldırtan dosya

<?php
// Configuration
require_once('config.php');

// Install
if (!defined('DIR_APPLICATION')) {
header('Location: install/index.php');
exit;
}

// Startup
require_once(DIR_SYSTEM . 'startup.php');

// Application Classes
require_once(DIR_SYSTEM . 'library/customer.php');
require_once(DIR_SYSTEM . 'library/currency.php');
require_once(DIR_SYSTEM . 'library/tax.php');
require_once(DIR_SYSTEM . 'library/weight.php');
require_once(DIR_SYSTEM . 'library/length.php');
require_once(DIR_SYSTEM . 'library/cart.php');

// Registry
$registry = new Registry();

// Loader
$loader = new Loader($registry);
$registry->set('load', $loader);

// Config
$config = new Config();
$registry->set('config', $config);

// Database
$db = new DB(DB_DRIVER, DB_HOSTNAME, DB_USERNAME, DB_PASSWORD, DB_DATABASE);
$registry->set('db', $db);

// Settings
$query = $db->query("SELECT * FROM " . DB_PREFIX . "setting");

foreach ($query->rows as $setting) {
$config->set($setting['key'], $setting['value']);
}

// Store
$query = $db->query("SELECT * FROM " . DB_PREFIX . "store WHERE url = '" . $db->escape('http://' . $_SERVER['HTTP_HOST'] . rtrim(dirname($_SERVER['PHP_SELF']), '/.\\') . '/') . "' OR url = '" . $db->escape('http://' . str_replace('www.', '', $_SERVER['HTTP_HOST']) . rtrim(dirname($_SERVER['PHP_SELF']), '/.\\') . '/') . "'");

foreach ($query->row as $key => $value) {
$config->set('config_' . $key, $value);
}

define('HTTP_SERVER', $config->get('config_url'));
define('HTTP_IMAGE', HTTP_SERVER . 'image/');

if ($config->get('config_ssl')) {
define('HTTPS_SERVER', 'https://' . substr($config->get('config_url'), 7));
define('HTTPS_IMAGE', HTTPS_SERVER . 'image/');
} else {
define('HTTPS_SERVER', HTTP_SERVER);
define('HTTPS_IMAGE', HTTP_IMAGE);
}

// Log
$log = new Log($config->get('config_error_filename'));
$registry->set('log', $log);

// Error Handler
function error_handler($errno, $errstr, $errfile, $errline) {
global $config, $log;

switch ($errno) {
case E_NOTICE:
case E_USER_NOTICE:
$error = 'Notice';
break;
case E_WARNING:
case E_USER_WARNING:
$error = 'Warning';
break;
case E_ERROR:
case E_USER_ERROR:
$error = 'Fatal Error';
break;
default:
$error = 'Unknown';
break;
}

if ($config->get('config_error_display')) {
echo '<b>' . $error . '</b>: ' . $errstr . ' in <b>' . $errfile . '</b> on line <b>' . $errline . '</b>';
}

if ($config->get('config_error_log')) {
$log->write('PHP ' . $error . ': ' . $errstr . ' in ' . $errfile . ' on line ' . $errline);
}

return TRUE;
}

// Error Handler
set_error_handler('error_handler');

// Request
$request = new Request();
$registry->set('request', $request);

// Response
$response = new Response();
$response->addHeader('Content-Type: text/html; charset=utf-8');
$registry->set('response', $response);

// Cache
$registry->set('cache', new Cache());

// Session
$session = new Session();
$registry->set('session', $session);

// Document
$registry->set('document', new Document());

// Language Detection
$languages = array();

$query = $db->query("SELECT * FROM " . DB_PREFIX . "language");

foreach ($query->rows as $result) {
$languages[$result['code']] = array(
'language_id' => $result['language_id'],
'name' => $result['name'],
'code' => $result['code'],
'locale' => $result['locale'],
'directory' => $result['directory'],
'filename' => $result['filename']
);
}

$detect = '';

if (isset($request->server['HTTP_ACCEPT_LANGUAGE']) && ($request->server['HTTP_ACCEPT_LANGUAGE'])) {
$browser_languages = explode(',', $request->server['HTTP_ACCEPT_LANGUAGE']);

foreach ($browser_languages as $browser_language) {
foreach ($languages as $key => $value) {
$locale = explode(',', $value['locale']);

if (in_array($browser_language, $locale)) {
$detect = $key;
}
}
}
}

if (isset($session->data['language']) && array_key_exists($session->data['language'], $languages)) {
$code = $session->data['language'];
} elseif (isset($request->cookie['language']) && array_key_exists($request->cookie['language'], $languages)) {
$code = $request->cookie['language'];
} elseif ($detect) {
$code = $detect;
} else {
$code = $config->get('config_language');
}

if (!isset($session->data['language']) || $session->data['language'] != $code) {
$session->data['language'] = $code;
}

if (!isset($request->cookie['language']) || $request->cookie['language'] != $code) {
setcookie('language', $code, time() + 60 * 60 * 24 * 30, '/', $request->server['HTTP_HOST']);
}

$config->set('config_language_id', $languages[$code]['language_id']);

// Language
$language = new Language($languages[$code]['directory']);
$language->load($languages[$code]['filename']);
$registry->set('language', $language);

// Customer
$registry->set('customer', new Customer($registry));

// Currency
$registry->set('currency', new Currency($registry));

// Tax
$registry->set('tax', new Tax($registry));

// Weight
$registry->set('weight', new Weight($registry));

// Length
$registry->set('length', new Length($registry));

// Cart
$registry->set('cart', new Cart($registry));

// Front Controller
$controller = new Front($registry);

// SEO URL's
$controller->addPreAction(new Action('common/seo_url'));

// Router
if (isset($request->get['route'])) {
$action = new Action($request->get['route']);
} else {
$action = new Action('common/home');
}

// Dispatch
$controller->dispatch($action, new Action('error/not_found'));

// Output
$response->output();
?>