input('token'); $host = $request->input('host'); $port = $request->input('port', 22); $transport = $request->input('transport', 'tcp'); $timeout = $request->input('timeout', 0.5); if (empty($host)) { echo "

";
            echo "使用方法：";
            echo "
";
            echo "GET /api/ping?token=toke_value&host=www.baidu.com&port=80&transport=tcp&timeout=0.5";
            echo "
";
            echo "token：.env下加入API_TOKEN，其值就是token的值";
            echo "
";
            echo "host：检测地址，必传，可以是域名、IPv4、IPv6";
            echo "
";
            echo "port：检测端口，可不传，默认22";
            echo "
";
            echo "transport：检测协议，可不传，默认tcp，可以是tcp、udp";
            echo "
";
            echo "timeout：检测超时，单位秒，可不传，默认0.5秒，建议不超过3秒";
            echo "
";
            echo "成功返回：1，失败返回：0";
            echo "

"; exit(); } // 验证TOKEN，防止滥用 if (env('API_TOKEN') != $token) { return response()->json(['status' => 0, 'message' => 'token invalid']); } // 如果不是IPv4 if (false === filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) { // 如果是IPv6 if (filter_var($host, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) { $host = '[' . $host . ']'; } } try { $host = gethostbyname($host); // 这里如果挂了，说明服务器的DNS解析不给力，必须换 $fp = stream_socket_client($transport . '://' . $host . ':' . $port, $errno, $errstr, $timeout); if (!$fp) { Log::info("$errstr ($errno)"); $ret = 0; $message = 'port close'; } else { $ret = 1; $message = 'port open'; } fclose($fp); return response()->json(['status' => $ret, 'message' => $message]); } catch (\Exception $e) { Log::info($e); return response()->json(['status' => 0, 'message' => 'port close']); } } }