commit 2f967f41cf78fd50e664d74be33d92e49d98fc03
parent 5798a7fc96da8ec14d5e6c771cfdc95a4196beb7
Author: Amit Dutta <amitdutta4255@gmail.com>
Date: Mon, 16 Feb 2026 17:26:54 +0530
server files
Diffstat:
| A | Dockerfile | | | 20 | ++++++++++++++++++++ |
| A | index.js | | | 175 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | package.json | | | 22 | ++++++++++++++++++++++ |
3 files changed, 217 insertions(+), 0 deletions(-)
diff --git a/Dockerfile b/Dockerfile
@@ -0,0 +1,19 @@
+FROM node:18-slim
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# Install dependencies
+# A wildcard is used to ensure both package.json AND package-lock.json are copied
+COPY package*.json ./
+
+RUN npm install
+
+# Bundle app source
+COPY . .
+
+# Expose the port the app runs on
+EXPOSE 3000
+
+# Start command
+CMD [ "node", "index.js" ]+
\ No newline at end of file
diff --git a/index.js b/index.js
@@ -0,0 +1,174 @@
+const {
+ default: makeWASocket,
+ useMultiFileAuthState,
+ DisconnectReason,
+ fetchLatestBaileysVersion
+} = require('@whiskeysockets/baileys');
+const express = require('express');
+const QRCode = require('qrcode');
+const pino = require('pino');
+const admin = require('firebase-admin');
+const fs = require('fs');
+
+// --- CONFIGURATION ---
+const PORT = process.env.PORT || 3000;
+
+// Initialize Express
+const app = express();
+
+// --- FIREBASE SETUP ---
+// We check for the environment variable 'FIREBASE_SERVICE_ACCOUNT'
+// This should contain the JSON string of your service account key.
+let serviceAccount;
+try {
+ if (process.env.FIREBASE_SERVICE_ACCOUNT) {
+ serviceAccount = JSON.parse(process.env.FIREBASE_SERVICE_ACCOUNT);
+ } else {
+ // Fallback for local testing if file exists
+ serviceAccount = require('./serviceAccountKey.json');
+ }
+
+ admin.initializeApp({
+ credential: admin.credential.cert(serviceAccount)
+ });
+ console.log("System: Firebase Admin initialized successfully.");
+} catch (error) {
+ console.error("System Error: Failed to initialize Firebase. Make sure FIREBASE_SERVICE_ACCOUNT env var is set.");
+ process.exit(1);
+}
+
+const db = admin.firestore();
+
+// --- BAILEYS SETUP ---
+let qrCodeData = null; // Store current QR code
+let sock = null;
+
+async function startWhatsApp() {
+ // Silent logger to prevent leaking data to logs
+ const logger = pino({ level: 'silent' });
+
+ const { state, saveCreds } = await useMultiFileAuthState('auth_info_baileys');
+ const { version } = await fetchLatestBaileysVersion();
+
+ sock = makeWASocket({
+ version,
+ logger,
+ printQRInTerminal: false, // We serve it via HTTP
+ auth: state,
+ browser: ["WhatsApp Logger", "Chrome", "1.0.0"],
+ syncFullHistory: false
+ });
+
+ sock.ev.on('connection.update', (update) => {
+ const { connection, lastDisconnect, qr } = update;
+
+ if (qr) {
+ qrCodeData = qr; // Update the QR to be served
+ }
+
+ if (connection === 'close') {
+ const shouldReconnect = (lastDisconnect.error)?.output?.statusCode !== DisconnectReason.loggedOut;
+ // Only log system status, never data
+ if (shouldReconnect) {
+ startWhatsApp();
+ }
+ } else if (connection === 'open') {
+ qrCodeData = null; // Clear QR code on success
+ }
+ });
+
+ sock.ev.on('creds.update', saveCreds);
+
+ // --- MESSAGE HANDLING ---
+ sock.ev.on('messages.upsert', async ({ messages, type }) => {
+ if (type !== 'notify') return;
+
+ for (const msg of messages) {
+ try {
+ if (!msg.message) continue;
+
+ // Extract Sender ID (phone number)
+ const remoteJid = msg.key.remoteJid;
+
+ // Skip status updates (broadcasts)
+ if (remoteJid === 'status@broadcast') continue;
+
+ // Extract Content
+ // We check multiple fields to support text, replies, and captions
+ const textContent =
+ msg.message.conversation ||
+ msg.message.extendedTextMessage?.text ||
+ msg.message.imageMessage?.caption ||
+ msg.message.videoMessage?.caption ||
+ "";
+
+ if (!textContent) continue; // Skip if no text found
+
+ const timestamp = msg.messageTimestamp
+ ? (typeof msg.messageTimestamp === 'number' ? msg.messageTimestamp : msg.messageTimestamp.low)
+ : Math.floor(Date.now() / 1000);
+
+ // --- SAVE TO FIRESTORE ---
+ // Structure: Chats -> [PhoneNumber] -> Messages -> [AutoID]
+ await db.collection('Chats').doc(remoteJid).collection('Messages').add({
+ text: textContent,
+ senderId: remoteJid,
+ senderName: msg.pushName || "Unknown",
+ timestamp: timestamp,
+ fromMe: msg.key.fromMe || false,
+ id: msg.key.id
+ });
+
+ } catch (err) {
+ // Silently handle errors to keep logs clean
+ }
+ }
+ });
+}
+
+// --- EXPRESS ROUTES ---
+
+// Root: Show QR Code or Status
+app.get('/', async (req, res) => {
+ if (sock?.ws?.isOpen) {
+ return res.send(`
+ <html>
+ <body style="font-family: sans-serif; text-align: center; padding-top: 50px;">
+ <h2 style="color: green;">System Operational</h2>
+ <p>Connected to WhatsApp.</p>
+ </body>
+ </html>
+ `);
+ }
+
+ if (qrCodeData) {
+ try {
+ const qrImage = await QRCode.toDataURL(qrCodeData);
+ return res.send(`
+ <html>
+ <meta http-equiv="refresh" content="5">
+ <body style="font-family: sans-serif; text-align: center; padding-top: 50px;">
+ <h2>Scan to Link</h2>
+ <img src="${qrImage}" alt="QR Code" />
+ <p>Refreshes every 5 seconds...</p>
+ </body>
+ </html>
+ `);
+ } catch (e) {
+ return res.send("Error generating QR.");
+ }
+ }
+
+ return res.send("Initializing... please refresh.");
+});
+
+// Ping endpoint for UptimeRobot
+app.get('/ping', (req, res) => {
+ res.send('Pong');
+});
+
+// Start the server
+app.listen(PORT, () => {
+ startWhatsApp();
+ console.log(`Server running on port ${PORT}`);
+});+
\ No newline at end of file
diff --git a/package.json b/package.json
@@ -0,0 +1,21 @@
+{
+ "name": "whatsapp-logger-backend",
+ "version": "1.0.0",
+ "description": "Backend for WhatsApp Logger using Baileys and Firebase",
+ "main": "index.js",
+ "scripts": {
+ "start": "node index.js"
+ },
+ "dependencies": {
+ "@whiskeysockets/baileys": "^6.6.0",
+ "express": "^4.18.2",
+ "firebase-admin": "^11.11.1",
+ "pino": "^8.17.2",
+ "qrcode": "^1.5.3"
+ },
+ "engines": {
+ "node": ">=16.0.0"
+ },
+ "author": "Amit",
+ "license": "MIT"
+}+
\ No newline at end of file
