289 lines
11 KiB
PHP
289 lines
11 KiB
PHP
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<?php
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/**
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* 二次风控（byApiRisk）处理，供 f_check.php 与模拟测试复用
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*/
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require_once dirname(__DIR__) . '/DbHelper.php';
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require_once __DIR__ . '/FpUrlHelper.php';
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require_once __DIR__ . '/VisitorApiAudit.php';
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require_once __DIR__ . '/RiskSecondaryGate.php';
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require_once __DIR__ . '/RiskSecondaryCache.php';
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require_once __DIR__ . '/VisitorLogSchema.php';
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require_once __DIR__ . '/ClientIpResolver.php';
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class FCheckHandler
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{
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/**
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* @param string $hdata base64(JSON)
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* @return array{ok:bool,status?:int,result?:bool,reason?:string,link?:string,message?:string,fingerprint_info?:array,api_request?:array,api_response?:array,cached?:bool}
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*/
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public static function processFromHdata($hdata)
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{
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$decodedString = base64_decode((string) $hdata, true);
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$fingerprint_info = is_string($decodedString) ? json_decode($decodedString, true) : null;
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if (!is_array($fingerprint_info) || empty($fingerprint_info['domain'])) {
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return [
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'ok' => false,
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'status' => 400,
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'message' => '无效的指纹数据',
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];
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}
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return self::process($fingerprint_info, (string) $hdata);
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}
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/**
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* @param array $fingerprint_info
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* @param string|null $hdata base64 payload sent to API；为空时自动生成
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* @return array{ok:bool,status?:int,result?:bool,reason?:string,link?:string,message?:string,fingerprint_info?:array,api_request?:array,api_response?:array,cached?:bool}
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*/
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public static function process(array $fingerprint_info, $hdata = null)
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{
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$fp_host = parse_url($fingerprint_info['domain'], PHP_URL_HOST);
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if (empty($fp_host)) {
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$fp_host = $_SERVER['HTTP_HOST'] ?? '';
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}
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if (!class_exists('ConfigLoader', false)) {
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require_once dirname(__DIR__, 2) . '/config/ConfigLoader.php';
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}
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$config_name = ConfigLoader::loadByHost($fp_host);
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$log_id = (int) ($fingerprint_info['log_id'] ?? 0);
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if (!RiskSecondaryGate::isEnabled()) {
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$_SESSION['visit_to_3'] = 3;
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$_SESSION['check_result'] = 'true';
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$resolved = FpUrlHelper::resolve($config_name, true);
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$fp_url = $resolved['url'];
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$response = [
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'reason' => '',
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'result' => true,
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'link' => $fp_url !== '' ? $fp_url : FpUrlHelper::fallbackUrl(),
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];
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if ($log_id > 0) {
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self::updateLog($log_id, [
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'result' => 'true',
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'reason' => '二次风控已关闭',
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'fp_url' => $response['link'],
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], $fingerprint_info, null, null);
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}
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return array_merge(['ok' => true, 'status' => 200, 'fingerprint_info' => $fingerprint_info], $response);
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}
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$clientIp = ClientIpResolver::resolve();
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$cached = RiskSecondaryCache::get($clientIp);
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if ($cached !== null) {
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return self::finishFromCache($cached, $config_name, $log_id, $fingerprint_info);
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}
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if ($hdata === null || $hdata === '') {
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$json = json_encode($fingerprint_info, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
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$hdata = base64_encode($json !== false ? $json : '{}');
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}
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$jsonData = [
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'id' => COSTM_IP_SCORE,
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'hdata' => $hdata,
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'referer' => $fingerprint_info['referer'] ?? '',
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'domain' => $fingerprint_info['domain'],
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'ip' => $fingerprint_info['ip'] ?? '',
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'risk_enhanced' => defined('CLOAK_RISK_ENHANCED') && strtoupper(CLOAK_RISK_ENHANCED) === 'ON' ? 1 : 0,
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'risk_number' => CLOAK_RISK_NUMBER,
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];
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$ch = curl_init('www.tiktokba.com/cloak/byApiRisk');
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
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curl_setopt($ch, CURLOPT_USERAGENT, get_SERVER_value('HTTP_USER_AGENT'));
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curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
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curl_setopt($ch, CURLOPT_ENCODING, '');
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curl_setopt($ch, CURLOPT_HTTPHEADER, [
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'Content-type: application/x-www-form-urlencoded',
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'escloak-key: ' . CHECK_KEY,
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]);
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curl_setopt($ch, CURLOPT_POST, true);
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curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($jsonData));
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if (function_exists('forward_response_cookies')) {
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curl_setopt($ch, CURLOPT_HEADERFUNCTION, 'forward_response_cookies');
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}
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if (!empty($_COOKIE) && function_exists('encode_visitor_cookies')) {
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curl_setopt($ch, CURLOPT_COOKIE, encode_visitor_cookies());
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}
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$returnRaw = curl_exec($ch);
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if ($returnRaw === false) {
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$err = curl_error($ch);
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curl_close($ch);
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return [
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'ok' => false,
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'status' => 502,
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'message' => 'Curl error: ' . $err,
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];
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}
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curl_close($ch);
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$return = json_decode($returnRaw, true);
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if (!is_array($return)) {
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return [
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'ok' => false,
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'status' => 502,
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'message' => '风控 API 返回无效',
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];
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}
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return self::finishFromApi($return, $config_name, $log_id, $fingerprint_info, $jsonData, $clientIp);
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}
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/**
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* @param array $return byApiRisk 原始响应
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* @param array $jsonData 请求体
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*/
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private static function finishFromApi(array $return, $config_name, $log_id, array $fingerprint_info, array $jsonData, $clientIp)
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{
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$_SESSION['visit_to_3'] = 3;
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$response = [];
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$response['reason'] = $return['reason'] ?? '';
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$response['result'] = !empty($return['result']);
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if ($response['result']) {
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$_SESSION['check_result'] = 'true';
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$resolved = FpUrlHelper::resolve($config_name, true);
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$response['link'] = $resolved['url'];
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} else {
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$_SESSION['check_result'] = 'false';
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if (CLOAK_REDIRECT_METHOD == 'curl') {
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$response['link'] = '';
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} else {
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$response['link'] = DB_ZP;
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}
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}
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$update_log = self::buildUpdateLog($response);
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self::persistCache($update_log, $clientIp);
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if ($log_id > 0) {
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self::updateLog($log_id, $update_log, $fingerprint_info, $jsonData, $return);
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}
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return array_merge([
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'ok' => true,
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'status' => 200,
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'fingerprint_info' => $fingerprint_info,
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'api_request' => $jsonData,
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'api_response' => $return,
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'cached' => false,
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], $response);
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}
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/**
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* @param array $cached RiskSecondaryCache::get()
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*/
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private static function finishFromCache(array $cached, $config_name, $log_id, array $fingerprint_info)
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{
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RiskSecondaryCache::applyToSession($cached);
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$response = RiskSecondaryCache::toApiResponse($cached);
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$update_log = [
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'result' => $response['result'] ? 'true' : 'false',
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'reason' => $response['reason'],
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'fp_url' => trim((string) ($response['link'] ?? '')),
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];
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if ($update_log['fp_url'] === '') {
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$update_log['fp_url'] = $update_log['result'] === 'true'
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? FpUrlHelper::fallbackUrl()
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: (defined('DB_ZP') ? (string) DB_ZP : '');
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}
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if ($log_id > 0) {
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$cacheMarker = [
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'cached' => true,
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'result' => $update_log['result'],
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'reason' => $cached['reason'] ?? '',
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'api_reason' => $cached['reason'] ?? '',
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'cached_at' => $cached['cached_at'] ?? null,
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];
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self::updateLog($log_id, $update_log, $fingerprint_info, null, $cacheMarker);
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}
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return array_merge([
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'ok' => true,
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'status' => 200,
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'fingerprint_info' => $fingerprint_info,
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'cached' => true,
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], $response);
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}
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/**
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* @param array{result:bool,reason?:string,link?:string} $response
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* @return array{result:string,reason:string,fp_url:string}
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*/
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private static function buildUpdateLog(array $response)
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{
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$update_log = [];
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$update_log['result'] = !empty($response['result']) ? 'true' : 'false';
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$update_log['reason'] = $response['reason'] ?? '';
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$update_log['fp_url'] = trim((string) ($response['link'] ?? ''));
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if ($update_log['fp_url'] === '') {
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$update_log['fp_url'] = $update_log['result'] === 'true'
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? FpUrlHelper::fallbackUrl()
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: (defined('DB_ZP') ? (string) DB_ZP : '');
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}
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return $update_log;
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}
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/**
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* @param array{result:string,reason:string,fp_url:string} $update_log
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* @param string $clientIp
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*/
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private static function persistCache(array $update_log, $clientIp)
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{
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RiskSecondaryCache::store([
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'ip' => $clientIp,
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'result' => $update_log['result'],
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'reason' => $update_log['reason'],
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'fp_url' => $update_log['fp_url'],
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]);
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}
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/**
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* @param int $log_id
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* @param array $update_log result, reason, fp_url
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* @param array $fingerprint_info
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* @param array|null $apiRequest
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* @param array|null $apiResponse
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*/
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public static function updateLog($log_id, array $update_log, array $fingerprint_info, $apiRequest, $apiResponse)
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{
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$conn = @new mysqli('localhost', DB_USERNAME, DB_PASSWORD, DB_NAME);
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if (!$conn || $conn->connect_error) {
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return false;
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}
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VisitorLogSchema::ensureColumns($conn);
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$resultEsc = cloak_db_escape($conn, $update_log['result'] ?? '');
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$reasonEsc = cloak_db_escape($conn, strip_tags(cloak_db_string($update_log['reason'] ?? '')));
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$fpUrlEsc = cloak_db_escape($conn, strip_tags(cloak_db_string($update_log['fp_url'] ?? '')));
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$fpHdataJson = json_encode($fingerprint_info, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
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if ($fpHdataJson === false) {
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$fpHdataJson = '';
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}
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$fpHdataEsc = cloak_db_escape($conn, $fpHdataJson);
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$apiRiskReqEsc = cloak_db_escape($conn, $apiRequest !== null ? VisitorApiAudit::encode($apiRequest) : '');
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$apiRiskRespEsc = cloak_db_escape($conn, $apiResponse !== null ? VisitorApiAudit::encode($apiResponse) : '');
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$sql = "UPDATE `visitor_logs` SET `result`='{$resultEsc}',`reason`='{$reasonEsc}',`fp_url`='{$fpUrlEsc}',`fp_hdata`='{$fpHdataEsc}',`api_risk_request`='{$apiRiskReqEsc}',`api_risk_response`='{$apiRiskRespEsc}' WHERE `id`='" . (int) $log_id . "'";
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$ok = $conn->query($sql) === true;
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if (!$ok) {
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$handle = @fopen(dirname(__DIR__, 2) . '/err.txt', 'a+');
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if ($handle) {
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fwrite($handle, date('Y-m-d H:i:s') . ' | FCheckHandler update: ' . $conn->error . "\n");
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fclose($handle);
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}
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}
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$conn->close();
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return $ok;
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}
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}
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