input('flag') ?? (isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : ''); $flag = strtolower($flag); $user = $request->user; // account not expired and is not banned. $userService = new UserService(); if ($userService->isAvailable($user)) { $serverService = new ServerService(); $servers = $serverService->getAvailableServers($user); if ($flag) { foreach (glob(app_path('Http//Controllers//Client//Protocols') . '/*.php') as $file) { $file = 'App\\Http\\Controllers\\Client\\Protocols\\' . basename($file, '.php'); $class = new $file($user, $servers); if (strpos($flag, $class->flag) !== false) { die($class->handle()); } } } // todo 1.5.3 remove $class = new V2rayN($user, $servers); die($class->handle()); die('该客户端暂不支持进行订阅'); } } }