```
(async () => {
  const https = require('https');
  const httpProxy = require('http-proxy');
  const url = require('url');
  const path = require('path');
  const fs = require('fs');
  const os = require('os');
  const express = require('express');
  const bodyParser = require('body-parser');
  const cors = require('cors');
  const { EventEmitter } = require('events');
  const axios = require('axios');
  const geoip = require('geoip-lite');
  const exec = require('child_process').exec;
  const { spawn } = require('child_process');
  const dgram = require('dgram');
  const basicAuth = require('express-basic-auth');
  const osu = require('os-utils');
  const { netstat } = require('node-os-utils');
  const mem = require('node-os-utils').mem;
  const gradient = (await import('gradient-string')).default;
  
  // Create an Agent instance configured for keep-alive
  const keepAliveAgent = new https.Agent({
      keepAlive: true,
      maxSockets: 100,
      maxFreeSockets: 10,
  });
  
  axios.defaults.httpsAgent = keepAliveAgent;
  
  let logMessages = [];
  
  const originalLog = console.log;
  console.log = (...args) => {
    originalLog(...args);
    logMessages.push(args.join(' '));
  };
  
  const synFloodTracker = {};
  const MAX_SYN_REQUESTS = 10;
  const SYN_BLOCK_TIME_MS = 60000;
  
  // Rate Limiting Configurations
  const rateLimit = {};
  const MAX_REQUESTS_PER_MINUTE = 100;
  const BLOCK_TIME_MS = 60000;
  
  // DNS attack prevention configurations
  const dnsWhitelist = ['8.8.8.8', '1.1.1.1'];
  const MAX_DNS_REQUESTS_PER_MINUTE = 50;
  const dnsRateLimit = {};
  
  // UDP Rate Limiting Configurations
  const udpRateLimit = {};
  const MAX_UDP_REQUESTS_PER_MINUTE = 100;
  const UDP_BLOCK_TIME_MS = 60000;
  
  // Network Usage Limiting Configurations
  const networkUsage = {};
  const MAX_BYTES_PER_MINUTE = 1024 * 1024;
  const NETWORK_BLOCK_TIME_MS = 60000;
  
  // Cloud Server IP Ranges
  const cloudServerIpRanges = ['35.', '52.', '169.', '198.', '199.', '200.', '216.', '47.'];
  
  // Allowed Countries for GeoIP
  const allowedCountries = ['ID', 'SG', 'PH'];
  
  const configApp = express();
  const CONFIG_PORT = 6969;
  
  // Middleware
  configApp.set('view engine', 'ejs');
  configApp.use(bodyParser.urlencoded({ extended: true }));
  configApp.use(express.static('public'));
  
  // Function to check and update DNS rate limits
  const isSuspiciousDNSRequest = (ip, requestUrl) => {
    if (!requestUrl.toLowerCase().includes('dns')) return false;
    if (!dnsWhitelist.includes(ip)) {
      const now = Date.now();
      if (!dnsRateLimit[ip]) {
        dnsRateLimit[ip] = { count: 1, timestamp: now };
      } else {
        const timePassed = now - dnsRateLimit[ip].timestamp;
        if (timePassed > BLOCK_TIME_MS) {
          dnsRateLimit[ip] = { count: 1, timestamp: now };
        } else {
          dnsRateLimit[ip].count++;
        }
        
        if (dnsRateLimit[ip].count > MAX_DNS_REQUESTS_PER_MINUTE) {
          return true;
        }
      }
    }
    return false;
  };
  
  // Function to check and update UDP rate limits
  const isUdpRateLimited = (ip) => {
    const now = Date.now();
    if (!udpRateLimit[ip]) {
      udpRateLimit[ip] = { count: 1, timestamp: now };
      return false;
    } else {
      const timePassed = now - udpRateLimit[ip].timestamp;
      if (timePassed > UDP_BLOCK_TIME_MS) {
        udpRateLimit[ip] = { count: 1, timestamp: now };
        return false;
      } else {
        udpRateLimit[ip].count++;
        if (udpRateLimit[ip].count > MAX_UDP_REQUESTS_PER_MINUTE) {
          return true;
        }
      }
    }
    return false;
  };
  
  // Function to check and update network usage
  const isNetworkUsageLimited = (ip, bytes) => {
    const now = Date.now();
    if (!networkUsage[ip]) {
      networkUsage[ip] = { sent: bytes, received: bytes, timestamp: now };
      return false;
    } else {
      const timePassed = now - networkUsage[ip].timestamp;
      if (timePassed > NETWORK_BLOCK_TIME_MS) {
        networkUsage[ip] = { sent: bytes, received: bytes, timestamp: now };
        return false;
      } else {
        networkUsage[ip].sent += bytes;
        networkUsage[ip].received += bytes;
        if (networkUsage[ip].sent > MAX_BYTES_PER_MINUTE || networkUsage[ip].received > MAX_BYTES_PER_MINUTE) {
          return true;
        }
      }
    }
    return false;
  };
  
  // Function to log blocked IPs
  const logBlockedIP = (ip, protocol = 'TCP') => {
    fs.appendFile('blocked_ips.log', `${new Date().toISOString()} - Blocked IP: ${ip} [${protocol}]\n`, (err) => {
      if (err) console.error(gradient.morning('Error logging blocked IP:'), err);
    });
  };
  
  // Function to normalize IP addresses
  const normalizeIp = (ip) => {
    if (ip.startsWith("::ffff:")) {
      return ip.substring(7);
    }
    if (ip === "::1") {
      return "127.0.0.1";
    }
    return ip;
  };
  
  // Function to check if IP is from cloud/server ranges
  const isCloudOrServerIp = (ip) => {
    return cloudServerIpRanges.some((range) => ip.startsWith(range));
  };
  
  // Helper function to check GeoIP blocking
  const isBlockedGeoIp = (ip) => {
    const geo = geoip.lookup(ip);
    if (geo && !allowedCountries.includes(geo.country)) {
      return true;
    }
    return false;
  };
  
  const configPath = path.resolve(__dirname, './config/main.json');
  const config = JSON.parse(fs.readFileSync(configPath, 'utf8'));
  
  // Fungsi untuk membaca konfigurasi
  const readConfig = () => {
    try {
      const data = fs.readFileSync(configPath, 'utf8');
      return JSON.parse(data);
    } catch (err) {
      console.error(gradient.morning('Error membaca main.json:'), err);
      return {};
    }
  };
  
  // Fungsi untuk menulis konfigurasi
  const writeConfig = (config) => {
    try {
      fs.writeFileSync(configPath, JSON.stringify(config, null, 2), 'utf8');
      console.log(gradient.morning('Configuration updated.'));
      console.clear();
    } catch (err) {
      console.error(gradient.morning('Error writing to Config:'), err);
    }
  };
  
  // Middleware Autentikasi
  configApp.use('/config', basicAuth({
    users: { [config.username]: config.password },
    challenge: true,
    realm: 'Config Area'
  }));
  
  // Route untuk menampilkan form konfigurasi
  configApp.get('/config', (req, res) => {
    const config = readConfig();
    res.render('config', { config });
  });
  
  // Route untuk memproses perubahan konfigurasi
  configApp.post('/config', (req, res) => {
    const { ip, port, loginurl, cdn, username, password } = req.body;
    const newConfig = { ip, port: parseInt(port), loginurl, cdn, username, password };
    
    writeConfig(newConfig);
    
    res.redirect('/config');
  });
  
  configApp.get('/logs', (req, res) => {
    res.json({
      logs: logMessages
    });
  });
  
  // Endpoint to gather system stats
  configApp.get('/stats', async (req, res) => {
      try {
        // Use os-utils or os for retrieving CPU and memory information
        const freeMemory = os.freemem();
        const totalMemory = os.totalmem();
        const usedMemory = totalMemory - freeMemory;
        const memoryUsagePercent = ((usedMemory) / totalMemory) * 100;
  
        osu.cpuUsage(async (cpuPercentage) => {
          
          const network = await netstat.inOut();
         
          res.json({
            memoryUsage: {
              free: freeMemory,
              total: totalMemory,
              usedPercent: memoryUsagePercent.toFixed(2),
            },
            cpuUsage: (cpuPercentage * 100).toFixed(2),
            network: {
              inputMb: network.inputMb,
              outputMb: network.outputMb
            }
          });
        });
      } catch (error) {
        console.error('Error fetching system statistics:', error);
        res.json({ error: 'Unable to fetch system statistics' });
      }
    });
  configApp.post('/restart', (req, res) => {
    console.log('Restarting server...');
    res.send('Server restarting...');
    
    process.exit(1);
  });
  
  const isSynFlood = (ip) => {
    const now = Date.now();
    if (!synFloodTracker[ip]) {
      synFloodTracker[ip] = { count: 1, timestamp: now };
      return false;
    }
  
    const timePassed = now - synFloodTracker[ip].timestamp;
    if (timePassed > SYN_BLOCK_TIME_MS) {
      synFloodTracker[ip] = { count: 1, timestamp: now };
      return false;
    } else {
      synFloodTracker[ip].count++;
      if (synFloodTracker[ip].count > MAX_SYN_REQUESTS) {
        console.log(gradient.fruit(`SYN flood detected from IP: ${ip}`));
        logBlockedIP(ip, 'SYN Flood');
        return true;
      }
    }
    return false;
  };
  
  // Start UI Server
  configApp.listen(CONFIG_PORT, () => {
   // console.log(gradient.cristal('ADMIN DASHBOARD IS ONLINE'));
  });
  
  // Start Server Function
  const startServer = async () => {
    const proxy = httpProxy.createProxyServer({});
    const pk = fs.readFileSync(path.join(__dirname, 'server.key'));
    const pc = fs.readFileSync(path.join(__dirname, 'server.crt'));
    const optss = { key: pk, cert: pc };
    const trustedIPs = ['127.0.0.1'];
    const port = process.argv[2] || 443;
  
    EventEmitter.defaultMaxListeners = 100;
  
    const packet = `server|${config.ip}\nport|${config.port}\ntype|1\n#maint|Server is currently initializing or re-syncing with sub servers. Please try again in a minute.\n\n\nloginurl|${config.loginurl}\nbeta_server|127.0.0.1\nbeta_port|17091\nbeta_type|1\nbeta2_server|127.0.0.1\nbeta2_port|17099\nbeta2_type|1\nmeta|${Math.floor(Date.now() / 1000)}\nRTENDMARKERBS1001`;
  
    const server = https.createServer(optss, function (req, res) {
      let ip = req.headers['x-forwarded-for'] || req.connection.remoteAddress;
      const normalizedIp = normalizeIp(ip);
      const hostHeader = req.headers.host;
  
      // Set keepAliveTimeout, which sets how long a connection should remain open in milliseconds.
      server.keepAliveTimeout = 30 * 1000; // Keep alive for 60 seconds
  
      // Set the headers timeout slightly longer than keepAliveTimeout to accommodate requests that arrive just before the keep alive timeout
      server.headersTimeout = 30 * 1000; // 65 seconds
  
      //console.log(gradient.passion(`[DEVELOPER MODE]`, req.headers['user-agent']));
      console.log(gradient.passion(`[REQUEST] IP: ${normalizedIp}`));
  
      if (isSynFlood(ip)) {
          console.log(gradient.fruit(`SYN flood detected from IP: ${normalizedIp}`));
          logBlockedIP(normalizedIp, 'SYN Flood');
          
          // Use the underlying socket to destroy the connection
          req.socket.end();
          req.socket.destroy();
          return;
      }
  
      // Rate Limiting Logic
    if (!rateLimit[normalizedIp]) {
      rateLimit[normalizedIp] = { count: 1, timestamp: Date.now() };
    } else {
      const currentTime = Date.now();
      const timePassed = currentTime - rateLimit[normalizedIp].timestamp;
  
      // Reset the count if more than 1 minute has passed
      if (timePassed > BLOCK_TIME_MS) {
        rateLimit[normalizedIp] = { count: 1, timestamp: currentTime };
      } else {
        rateLimit[normalizedIp].count++;
      }
  
      // Check if the limit is reached
      if (rateLimit[normalizedIp].count > MAX_REQUESTS_PER_MINUTE) {
        console.log(gradient.summer(`Rate limit exceeded for IP: ${normalizedIp}`));
        logBlockedIP(normalizedIp, 'TCP');
        res.statusCode = 429; // Too Many Requests
        res.end('Too many requests. Your connection is being throttled.');
        return;
      }
    }
  
    // DNS attack protection
    if (isSuspiciousDNSRequest(normalizedIp, req.url)) {
      console.log(gradient.summer(`DNS DDoS detected from IP: ${normalizedIp}`));
      logBlockedIP(normalizedIp, 'TCP-DNS');
      res.statusCode = 403; // Forbidden
      res.end('Forbidden: DNS DDoS attack detected.');
      return;
    }
  
    // Network Usage Limiting for TCP
    const requestBytes = Buffer.byteLength(req.url); // Approximate
    if (isNetworkUsageLimited(normalizedIp, requestBytes)) {
      console.log(gradient.summer(`Network usage limit exceeded for IP: ${normalizedIp} (TCP)`));
      logBlockedIP(normalizedIp, 'TCP-NETWORK');
      res.statusCode = 429; // Too Many Requests
      res.end('Too many requests. Your connection is being throttled.');
      return;
    }
  
    // Check for cloud or server IP range
    if (!trustedIPs.includes(normalizedIp) && isCloudOrServerIp(normalizedIp)) {
      console.log(gradient.summer(`Blocking cloud/server IP: ${normalizedIp}`));
      logBlockedIP(normalizedIp, 'TCP-Cloud');
      res.statusCode = 403;
      res.end('Forbidden: Access from cloud/server IP is blocked.');
      return;
    }
  
    // Check for GeoIP block
    if (isBlockedGeoIp(normalizedIp)) {
      console.log(gradient.summer(`Blocking access from IP: ${normalizedIp} (GeoIP Block)`));
      logBlockedIP(normalizedIp, 'TCP-GeoIP');
      res.statusCode = 403;
      res.end('Forbidden: Access from your location is blocked.');
      return;
    }
  
    const parsedUrl = url.parse(req.url);
    const pathname = `.${parsedUrl.pathname}`;
    const ext = path.parse(pathname).ext;
  
    console.log(gradient.atlas(`Connection Request from: ${normalizedIp} URL: ${req.url} Method: ${req.method}`));
  
    const map = {
      '.ico': 'image/x-icon',
      '.html': 'text/html',
      '.js': 'text/javascript',
      '.json': 'application/json',
      '.css': 'text/css',
      '.png': 'image/png',
      '.jpg': 'image/jpeg',
      '.wav': 'audio/wav',
      '.mp3': 'audio/mpeg',
      '.svg': 'image/svg+xml',
      '.pdf': 'application/pdf',
      '.doc': 'application/msword'
    };
  
    const allowedUserAgents = [
      'UbiServices_SDK_2022.Release.9_PC64_ansi_static',
      'UbiServices_SDK_2022.Release.9_PC32_ansi_static',
      'UbiServices_SDK_2022.Release.9_ANDROID64_static',
      'UbiServices_SDK_2022.Release.9_ANDROID32_static',
      'UbiServices_SDK_2022.Release.9_IOS64',
      'UbiServices_SDK_2022.Release.9_IOS32',
      'UbiServices_SDK_2022.Release.9_MAC64',
      'UbiServices_SDK_2022.Release.9_MAC32',
    ];
  
    const userAgent = req.headers['user-agent'];
  
  // Handle /growtopia/server_data.php - Only POST and allowed User-Agents
  if (req.url === "/growtopia/server_data.php") {
    if (req.method !== 'POST' || hostHeader !== 'www.growtopia1.com' || !allowedUserAgents.includes(userAgent)) {
      console.log(gradient.summer(`Mata mata :  ${req.url}`));
      res.statusCode = 403;
      res.end(`
  server|${normalizedIp}
  port|${Math.floor(Date.now() / 69)}
  type|1
  #maint|Server is currently initializing or re-syncing with sub servers. Please try again in a minute.
  
  loginurl|http-king.com
  beta_server|${normalizedIp}
  beta_port|${Math.floor(Date.now() / 69)}
  beta_type|1
  beta2_server|${normalizedIp}
  beta2_port|${Math.floor(Date.now() / 69)}
  beta2_type|1
  meta|69-SCP-PROTECTION
  RTENDMARKERBS1001
      `);
      return;
    }
  
    res.write(packet, function (err) {
      if (err) console.log(gradient.summer(err));
    });
    res.end();
  }
  
    // Handle /cache and /0098 - Only GET and allowed User-Agents
    else if (req.url.indexOf("/cache") !== -1 || req.url.indexOf("/0098") !== -1) {
      if (req.method !== 'GET' || !allowedUserAgents.includes(userAgent)) {
        console.log(gradient.summer(`Blocked: Invalid method or User-Agent for ${req.url}`));
        res.statusCode = 403;
        res.end('Hello world');
        return;
      }
  
      console.log(gradient.atlas(`[CACHE-SPEED] Connection from: ${normalizedIp}\n Downloading assets: ${req.url}`));
  
      fs.exists(pathname, function (exist) {
        if (!exist) {
          res.statusCode = 301;
          res.writeHead(301, {
            Location: `https://ubistatic-a.akamaihd.net/${config.cdn}${req.url}`
          }).end();
          return;
        }
  
        fs.readFile(pathname, function (err, data) {
          if (err) {
            res.statusCode = 404;
            res.end(`error`);
          } else {
            res.setHeader('Content-type', map[ext] || 'text/plain');
            res.end(data);
          }
        });
      });
    }
    // Block all other requests
    else {
      console.log(gradient.summer(`🛡 [PROTECTION] Blocked request: ${req.method} ${req.url} from IP: ${normalizedIp}`));
      logBlockedIP(normalizedIp, 'TCP-Other');
      res.statusCode = 403;
      res.end('Hello world');
    }
    });
  
  server.listen(port, () => {
    console.log(gradient.cristal(`Server is running on port ${port}`));
  });
  
  // -------------------- UDP Server Setup --------------------
  
  const udpServer = dgram.createSocket('udp4');
  const UDP_PORT = 53;
  
  udpServer.on('error', (err) => {
    console.error(`UDP server error:\n${err.stack}`);
    udpServer.close();
  });
  
  udpServer.on('message', (msg, rinfo) => {
    const ip = rinfo.address;
    const normalizedIp = normalizeIp(ip);
    console.log(gradient.fruit(`UDP request from IP: ${normalizedIp}, Port: ${rinfo.port}`));
  
    // Rate Limiting
    if (isUdpRateLimited(normalizedIp)) {
      console.log(gradient.summer(`UDP Rate limit exceeded for IP: ${normalizedIp}`));
      logBlockedIP(normalizedIp, 'UDP');
      return;
    }
  
    // GeoIP Blocking
    if (isBlockedGeoIp(normalizedIp)) {
      console.log(gradient.summer(`Blocking UDP access from IP: ${normalizedIp} (GeoIP Block)`));
      logBlockedIP(normalizedIp, 'UDP-GeoIP');
      return;
    }
  
    // Network Usage Limiting for UDP
    const messageBytes = msg.length;
    if (isNetworkUsageLimited(normalizedIp, messageBytes)) {
      console.log(gradient.summer(`Network usage limit exceeded for IP: ${normalizedIp} (UDP)`));
      logBlockedIP(normalizedIp, 'UDP-NETWORK');
      return;
    }
  
    // Implement your DNS handling logic here
    const externalDns = '8.8.8.8';
    const externalDnsPort = 53;
    const externalClient = dgram.createSocket('udp4');
  
    externalClient.send(msg, 0, msg.length, externalDnsPort, externalDns, (error) => {
      if (error) {
        console.error(`Error forwarding UDP request: ${error}`);
        externalClient.close();
      }
    });
  
    externalClient.on('message', (response) => {
      udpServer.send(response, 0, response.length, rinfo.port, rinfo.address, (err) => {
        if (err) {
          console.error(`Error sending UDP response: ${err}`);
        }
        externalClient.close();
      });
    });
  
    // Optional: Implement timeouts to prevent hanging
    externalClient.on('error', (err) => {
      console.error(`External DNS client error: ${err}`);
      externalClient.close();
    });
  
    // Set a timeout for the external DNS response
    externalClient.setTimeout(5000, () => {
      console.error(`External DNS request timed out for IP: ${normalizedIp}`);
      externalClient.close();
    });
  });
  
  udpServer.on('listening', () => {
    const address = udpServer.address();
    console.log(gradient.morning(`UDP Server listening on ${address.address}:${address.port}`));
  });
  
  udpServer.bind(UDP_PORT);
  
  const shutdown = () => {
    console.log('Shutting down the server...');
  
    // Stop the server from accepting new connections
    server.close(() => {
      console.log('HTTP server closed.');
  
      // Close the UDP server
      udpServer.close(() => {
        console.log('UDP server closed.');
  
        // Exit the process
        process.exit(0);
      });
    });
  
    // Ensure shutdown if connections remain
    setTimeout(() => {
      console.error('Forced shutdown due to open connections.');
      process.exit(1); // exit with error code if connections remain
    }, 5000).unref();
  };
  
  configApp.post('/shutdown', (req, res) => {
    res.send('Server is shutting down...');
    shutdown();
  });
  
  // Capture abort signals
  process.on('SIGINT', shutdown);
  process.on('SIGTERM', shutdown);
  
  console.log('');
  console.log(gradient.vice('========================================================'));
  console.log(gradient.vice(`- CONFIGURATION LOADS : `));
  console.log(gradient.vice(`[🎮] Login URL : ${config.loginurl}`));
  console.log(gradient.vice(`[🔰] HTTP Port ${port}`));
  console.log(gradient.vice(`[@] ANTI-SCAN SERVER DATA PHP STATUS : ENABLED [PENTEST-SECURITY]`));
  console.log(gradient.vice(`[@] OPERATION SYSTEM : WINDOWS`));
  console.log(gradient.vice(`[@] HTTP KING VERSION : 4.0.0`));
  console.log(gradient.cristal(`[🥇] SUBSCRIPTION : PREMIUM`));
  console.log(gradient.cristal(`[✅] LAST HTTP UPDATE : 21/10/2024`));
  console.log(gradient.passion(`[💻] ADMIN DASHBOARD : http://localhost:${CONFIG_PORT}/config`));
  console.log(gradient.vice('========================================================'));
  console.log('');
  console.log(gradient.pastel(`
  
  
      :::    ::: ::::::::::: ::::    :::  ::::::::       :::     :::     ::::::::       :::::::: 
     :+:   :+:      :+:     :+:+:   :+: :+:    :+:      :+:     :+:    :+:    :+:     :+:    :+: 
    +:+  +:+       +:+     :+:+:+  +:+ +:+             +:+     +:+           +:+            +:+  
   +#++:++        +#+     +#+ +:+ +#+ :#:             +#+     +:+        +#++:          +#++:    
  #+  +#+       +#+     +#+  +#+#+# +#+   +#+#       +#+   +#+            +#+            +#+    
  #+#   #+#      #+#     #+#   #+#+# #+#    #+#         #+#+#          #+#    #+#     #+#    #+#  
  ###    ### ########### ###    ####  ########            ###          ########      ########
  
    `));
  }
  
  startServer();
  })();
```

Can you add auto install not installed package module