426 lines
17 KiB
JavaScript
426 lines
17 KiB
JavaScript
const baileys = require('@whiskeysockets/baileys');
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const makeWASocket = baileys.default || baileys.makeWASocket || baileys;
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const { useMultiFileAuthState, DisconnectReason, fetchLatestBaileysVersion, downloadMediaMessage, makeCacheableSignalKeyStore } = baileys;
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const pino = require('pino');
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const NodeCache = require('node-cache');
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const axios = require('axios');
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const fs = require('fs');
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const path = require('path');
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const sessions = new Map(); // Store active sockets in memory
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const retryCounters = new Map(); // Track reconnection attempts per session
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const recentMessages = new Map(); // Cache of recent messages in memory to serve getMessage callback
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// Global retry counter cache — persists across socket reconnects
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// This is CRITICAL for E2EE: tracks message retry attempts so Baileys can
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// re-encrypt messages when a recipient's device requests a retry
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const msgRetryCounterCache = new NodeCache({ stdTTL: 600, checkperiod: 120 });
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const MAX_RETRIES = 5; // Maximum reconnection attempts before giving up
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// Local folder for saving auth keys
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const SESSIONS_DIR = path.join(__dirname, 'sessions');
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if (!fs.existsSync(SESSIONS_DIR)) {
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fs.mkdirSync(SESSIONS_DIR, { recursive: true });
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}
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async function sendWebhook(webhook_url, payload) {
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try {
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console.log(`[Webhook] Sending to ${webhook_url} | state=${payload.state}`);
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const response = await axios.post(webhook_url, payload, {
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headers: {
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'Content-Type': 'application/json',
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'X-Webhook-Secret': process.env.WEBHOOK_SECRET || ''
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},
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timeout: 10000
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});
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console.log(`[Webhook] ✅ Success | HTTP ${response.status}`);
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} catch (err) {
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if (err.response) {
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console.error(`[Webhook] ❌ HTTP ${err.response.status} | ${JSON.stringify(err.response.data)}`);
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} else {
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console.error(`[Webhook] ❌ Network Error: ${err.message}`);
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}
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}
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}
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async function startSession(session_key, webhook_url) {
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// Return existing socket if it's already active
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if (sessions.has(session_key)) {
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console.log(`[Session] ${session_key} already active, reusing`);
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return sessions.get(session_key);
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}
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console.log(`[Session] Starting ${session_key} → webhook: ${webhook_url}`);
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const sessionFolder = path.join(SESSIONS_DIR, session_key);
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const { state, saveCreds } = await useMultiFileAuthState(sessionFolder);
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// Fetch the latest WhatsApp Web version to avoid 405 rejection
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let version;
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try {
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const versionInfo = await fetchLatestBaileysVersion();
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version = versionInfo.version;
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console.log(`[Baileys] Using WA version: ${version}`);
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} catch (e) {
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console.warn(`[Baileys] Could not fetch version, using default`);
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}
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const logger = pino({ level: 'silent' });
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const socketConfig = {
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auth: {
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creds: state.creds,
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// Wrap keys with makeCacheableSignalKeyStore for fast in-memory
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// Signal key access — this prevents E2EE key lookup failures
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// that cause "Waiting for this message" on recipient devices
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keys: makeCacheableSignalKeyStore(state.keys, logger),
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},
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printQRInTerminal: false,
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logger: logger,
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browser: ['Nabeh Gateway', 'Chrome', '120.0.0'],
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// Message retry counter cache — tracks how many times each message
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// retry has been attempted, preventing infinite retry loops
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msgRetryCounterCache,
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getMessage: async (key) => {
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if (recentMessages.has(key.id)) {
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return recentMessages.get(key.id);
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}
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return undefined;
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}
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};
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if (version) socketConfig.version = version;
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const sock = makeWASocket(socketConfig);
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console.log(`[Session] Socket created for ${session_key}`);
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sessions.set(session_key, sock);
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sock.ev.on('creds.update', saveCreds);
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// Listen for incoming messages
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sock.ev.on('messages.upsert', async (m) => {
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console.log(`[Upsert] Event received type=${m.type} messagesCount=${m.messages?.length}`);
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if (m.messages && m.messages.length > 0) {
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console.log(`[Upsert] First message keys:`, Object.keys(m.messages[0]));
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console.log(`[Upsert] First message key:`, JSON.stringify(m.messages[0].key));
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console.log(`[Upsert] First message structure:`, JSON.stringify(m.messages[0].message));
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// Cache all incoming messages to serve E2EE retries
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for (const msg of m.messages) {
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if (msg.key && msg.key.id && msg.message) {
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recentMessages.set(msg.key.id, msg.message);
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if (recentMessages.size > 2000) {
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const firstKey = recentMessages.keys().next().value;
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recentMessages.delete(firstKey);
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}
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}
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}
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}
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if (m.type !== 'notify') return;
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for (const msg of m.messages) {
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// Ignore messages sent by ourselves
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if (msg.key.fromMe) continue;
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const remoteJid = msg.key.remoteJid;
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if (!remoteJid) continue;
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// Only process individual chats (ignore groups and broadcasts)
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const isGroup = remoteJid.endsWith('@g.us');
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const isBroadcast = remoteJid.endsWith('@broadcast');
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if (isGroup || isBroadcast) continue;
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// Extract text body
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const body = msg.message?.conversation ||
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msg.message?.extendedTextMessage?.text ||
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msg.message?.imageMessage?.caption ||
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msg.message?.videoMessage?.caption || '';
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const isAudio = !!msg.message?.audioMessage;
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const isImage = !!msg.message?.imageMessage;
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// Only process messages that have text content OR are audio/image messages
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if (!body && !isAudio && !isImage) continue;
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let audioBase64 = null;
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let audioMimeType = null;
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let imageBase64 = null;
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let imageMimeType = null;
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if (isAudio) {
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try {
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console.log(`[Baileys] Downloading audio message for ${remoteJid}`);
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const buffer = await downloadMediaMessage(
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msg,
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'buffer',
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{},
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{
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logger: pino({ level: 'silent' }),
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rekey: true
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}
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);
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audioBase64 = buffer.toString('base64');
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audioMimeType = msg.message.audioMessage.mimetype || 'audio/ogg';
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} catch (e) {
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console.error('[Baileys] Failed to download audio message:', e.message);
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continue; // Skip if audio download fails to prevent empty processing
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}
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} else if (isImage) {
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try {
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console.log(`[Baileys] Downloading image message for ${remoteJid}`);
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const buffer = await downloadMediaMessage(
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msg,
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'buffer',
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{},
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{
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logger: pino({ level: 'silent' }),
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rekey: true
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}
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);
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imageBase64 = buffer.toString('base64');
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imageMimeType = msg.message.imageMessage.mimetype || 'image/jpeg';
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} catch (e) {
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console.error('[Baileys] Failed to download image message:', e.message);
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continue; // Skip if image download fails
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}
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}
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// Extract sender phone number (handle LID privacy scheme)
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let senderPhone = '';
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if (msg.key.senderPn && msg.key.senderPn.endsWith('@s.whatsapp.net')) {
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senderPhone = msg.key.senderPn.split('@')[0];
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} else if (remoteJid.endsWith('@s.whatsapp.net')) {
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senderPhone = remoteJid.split('@')[0];
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} else if (remoteJid.endsWith('@lid')) {
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senderPhone = remoteJid.split('@')[0];
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senderPhone = remoteJid.split('@')[0];
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}
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if (!senderPhone) continue;
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const senderName = msg.pushName || '';
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if (isAudio) {
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console.log(`[Message] Received audio voice note from ${senderPhone} (JID: ${remoteJid})`);
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} else if (isImage) {
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console.log(`[Message] Received image from ${senderPhone} (JID: ${remoteJid})`);
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} else {
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console.log(`[Message] Received from ${senderPhone} (JID: ${remoteJid}): ${body}`);
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}
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await sendWebhook(webhook_url, {
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session_key,
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state: 'message_received',
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message: {
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id: msg.key.id,
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phone: senderPhone,
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name: senderName,
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body: body,
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audio: audioBase64,
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mimeType: audioMimeType,
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duration: msg.message?.audioMessage?.seconds ? Number(msg.message.audioMessage.seconds) : null,
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image: imageBase64,
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imageMimeType: imageMimeType,
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timestamp: msg.messageTimestamp
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}
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});
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}
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});
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sock.ev.on('connection.update', async (update) => {
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const { connection, lastDisconnect, qr } = update;
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if (qr) {
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console.log(`[QR] Generated for ${session_key}`);
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// Reset retry counter on QR generation (session is alive)
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retryCounters.set(session_key, 0);
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await sendWebhook(webhook_url, {
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session_key,
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state: 'waiting_qr',
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qr_code: qr
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});
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}
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if (connection === 'close') {
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const statusCode = lastDisconnect?.error?.output?.statusCode;
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const shouldReconnect = statusCode !== DisconnectReason.loggedOut;
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if (!shouldReconnect) {
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console.log(`[Connection] ${session_key} permanently closed (logged out). Cleaning up.`);
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sessions.delete(session_key);
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await cleanupSession(session_key);
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await sendWebhook(webhook_url, {
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session_key,
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state: 'disconnected'
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});
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} else {
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const retries = (retryCounters.get(session_key) || 0) + 1;
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retryCounters.set(session_key, retries);
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sessions.delete(session_key);
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let delay;
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if (retries <= MAX_RETRIES) {
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delay = Math.min(retries * 3000, 15000); // 3s, 6s, 9s, 12s, 15s
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console.log(`[Connection] Reconnecting ${session_key} (quick retry ${retries}/${MAX_RETRIES}) in ${delay}ms...`);
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} else {
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delay = 60000; // 60s
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console.log(`[Connection] Reconnecting ${session_key} (long-term retry ${retries}) in 60s...`);
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}
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setTimeout(() => startSession(session_key, webhook_url), delay);
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}
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} else if (connection === 'open') {
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console.log(`[Connection] ✅ ${session_key} connected successfully!`);
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retryCounters.set(session_key, 0); // Reset on successful connection
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// Parse phone number from the JID (e.g. 9665XXXXXXX@s.whatsapp.net)
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const phone = sock.user.id.split(':')[0];
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await sendWebhook(webhook_url, {
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session_key,
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state: 'connected',
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phone: phone
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});
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}
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});
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return sock;
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}
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/**
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* Cleanup session: remove from memory and delete auth files
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*/
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async function cleanupSession(session_key) {
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const sock = sessions.get(session_key);
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if (sock) {
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try { sock.end(); } catch (e) { } // Gracefully close socket without logout
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sessions.delete(session_key);
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}
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retryCounters.delete(session_key);
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// Wipe the auth directory so a fresh session can be created next time
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const sessionFolder = path.join(SESSIONS_DIR, session_key);
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if (fs.existsSync(sessionFolder)) {
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fs.rmSync(sessionFolder, { recursive: true, force: true });
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console.log(`[Cleanup] Deleted session folder for ${session_key}`);
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}
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}
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/**
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* Disconnect session: logout from WhatsApp and cleanup
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*/
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async function disconnectSession(session_key) {
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const sock = sessions.get(session_key);
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if (sock) {
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try { sock.logout(); } catch (e) { } // best effort logout
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sessions.delete(session_key);
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}
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retryCounters.delete(session_key);
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// Completely wipe the auth directory
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const sessionFolder = path.join(SESSIONS_DIR, session_key);
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if (fs.existsSync(sessionFolder)) {
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fs.rmSync(sessionFolder, { recursive: true, force: true });
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console.log(`[Disconnect] Deleted session folder for ${session_key}`);
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}
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}
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const { exec } = require('child_process');
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const os = require('os');
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function convertToOggOpus(base64Audio) {
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return new Promise((resolve, reject) => {
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const timeId = Date.now() + Math.random().toString(36).substring(7);
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const inputPath = path.join(os.tmpdir(), `input_${timeId}.tmp`);
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const outputPath = path.join(os.tmpdir(), `output_${timeId}.ogg`);
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fs.writeFile(inputPath, Buffer.from(base64Audio, 'base64'), (err) => {
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if (err) return reject(err);
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exec(`ffmpeg -i ${inputPath} -c:a libopus -y ${outputPath}`, (execErr) => {
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fs.unlink(inputPath, () => {});
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if (execErr) return reject(execErr);
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fs.readFile(outputPath, (readErr, data) => {
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fs.unlink(outputPath, () => {});
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if (readErr) return reject(readErr);
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resolve(data.toString('base64'));
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});
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});
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});
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});
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}
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/**
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* Send a message using an active session
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*/
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async function sendMessage(session_key, phone, message, mediaUrl = null, audioBase64 = null, mimetype = null) {
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const sock = sessions.get(session_key);
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if (!sock) {
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throw new Error(`Session ${session_key} is not active or connected`);
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}
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let jid = phone.includes('@') ? phone : `${phone}@s.whatsapp.net`;
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let sentMsg;
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if (audioBase64) {
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let finalAudioBase64 = audioBase64;
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let finalMime = mimetype || 'audio/mp4';
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// If it's MP3, convert to OGG Opus to ensure iPhone PTT compatibility
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if (finalMime.includes('mpeg') || finalMime.includes('mp3')) {
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try {
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console.log(`[Baileys] Converting MP3 to OGG Opus for native PTT...`);
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finalAudioBase64 = await convertToOggOpus(audioBase64);
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finalMime = 'audio/ogg; codecs=opus';
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} catch (err) {
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console.error(`[Baileys] FFmpeg conversion failed:`, err.message);
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// Fallback to sending as normal audio if conversion fails
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finalMime = 'audio/mp4';
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}
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}
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const buffer = Buffer.from(finalAudioBase64, 'base64');
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const isMp3 = finalMime.includes('mpeg') || finalMime.includes('mp3');
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sentMsg = await sock.sendMessage(jid, {
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audio: buffer,
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mimetype: finalMime,
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ptt: !isMp3 // PTT enabled for OGG/MP4, disabled for raw MP3
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});
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} else if (mediaUrl) {
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const ext = mediaUrl.split('.').pop().toLowerCase();
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if (['jpg', 'jpeg', 'png', 'webp'].includes(ext)) {
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sentMsg = await sock.sendMessage(jid, { image: { url: mediaUrl }, caption: message });
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} else if (['mp4', 'mkv', 'avi'].includes(ext)) {
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sentMsg = await sock.sendMessage(jid, { video: { url: mediaUrl }, caption: message });
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} else {
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sentMsg = await sock.sendMessage(jid, { document: { url: mediaUrl }, caption: message, fileName: mediaUrl.split('/').pop() });
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}
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} else {
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sentMsg = await sock.sendMessage(jid, { text: message });
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}
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// Cache outbound messages for E2EE decryption retries
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if (sentMsg && sentMsg.key && sentMsg.key.id && sentMsg.message) {
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recentMessages.set(sentMsg.key.id, sentMsg.message);
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if (recentMessages.size > 2000) {
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const firstKey = recentMessages.keys().next().value;
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recentMessages.delete(firstKey);
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}
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}
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return sentMsg;
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}
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function getActiveSessions() {
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return Array.from(sessions.keys());
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}
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module.exports = {
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startSession,
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disconnectSession,
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sendMessage,
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getActiveSessions
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};
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