✨feat: Caching Group Metadata

wai-server/core/baileys/index.js

@@ -4,6 +4,7 @@ const {
   DisconnectReason,
   makeCacheableSignalKeyStore,
   makeInMemoryStore,
+  getMessageFromStore,
   useMultiFileAuthState,
   downloadMediaMessage,
   isJidNewsletter, isJidGroup, isJidBroadcast, isJidStatusBroadcast
@@ -25,8 +26,8 @@ const createWhatsApp = async phone => {
   const whatsAppNo = phone;
   // 缓存 msgId-externalId，过期时间为 5 分钟
   const externalIdCache = new NodeCache({ stdTTL: 60*5 });
-  // 缓存群信息，过期时间为 24 小时
-  const groupSubjectCache = new NodeCache({ stdTTL: 60*60*24 });
+ // 缓存群信息，过期时间为 5 分钟
+  const groupCache = new NodeCache({stdTTL: 5 * 60, useClones: false})
   const logger = P({ timestamp: () => `,"time":"${new Date().toJSON()}"` }, P.destination('./logs/wa-logs-' + phone + '.txt'));
   logger.level = 'warn';
   const msgRetryCounterCache = new NodeCache();
@@ -76,6 +77,8 @@ const createWhatsApp = async phone => {
           creds: state.creds,
           keys: makeCacheableSignalKeyStore(state.keys, logger),
         },
+        cachedGroupMetadata: async (jid) => groupCache.get(jid),
+        getMessage: async (key) => await getMessageFromStore(key),
         // https://github.com/WhiskeySockets/Baileys/blob/master/src/Utils/generics.ts
         // https://github.com/WhiskeySockets/Baileys/blob/master/WAProto/WAProto.proto
         // Browsers.macOS('SAFARI'), Browsers.ubuntu('IOS_PHONE'), Browsers.baileys('WEAR_OS'),
@@ -88,6 +91,17 @@ const createWhatsApp = async phone => {
 
     store?.bind(waSocket.ev);
 
+    const getGroupSubject = async jid => {
+      const cachedMatadata = groupCache.get(jid);
+
+      if (cachedMatadata === undefined) {
+        const groupMetadata = await waSocket.groupMetadata(jid);
+        groupCache.set(jid, groupMetadata);
+        return groupMetadata.subject;
+      } else {
+        return cachedMatadata.subject;
+      }
+    };
     const buildStandardMessage = async msg => {
       // 如果是群发(xxx@broadcast)，participant 是发送人，不然则是 remoteJid
       const remoteNo = isJidBroadcast(msg.key.remoteJid) ? decodeJid(msg.key.participant) : decodeJid(msg.key.remoteJid);
@@ -95,12 +109,7 @@ const createWhatsApp = async phone => {
       const isPersonal = isJidPersonal(msg.key.remoteJid);
       const conversationType = isPersonal ? 'individual' : 'group';
       const isGroup = isJidGroup(msg.key.remoteJid);
-      let groupSubject = groupSubjectCache.get(msg.key.remoteJid);
-      if (isGroup && groupSubject === undefined) {
-        const groupMetadata = await waSocket.groupMetadata(msg.key.remoteJid);
-        groupSubject = groupMetadata.subject;
-        groupSubjectCache.set(msg.key.remoteJid, groupMetadata.subject)
-      }
+      const groupSubject = isGroup ? await getGroupSubject(msg.key.remoteJid) : '';
 
       const msgDirection = msg.key.fromMe ? 'outbound' : 'inbound';
       const msgFrom = msg.key.fromMe ? whatsAppNo : remoteNo;
@@ -351,6 +360,7 @@ const createWhatsApp = async phone => {
       ).then(msg => {
         externalIdCache.set(msg.key.id, externalId)
       }).catch(ex => {
+        console.info('sendMessageHandler.catch: ', ex)
         waEmitter.emit('message:updated', {
           id: generateId(),
           externalId,
@@ -398,19 +408,17 @@ const createWhatsApp = async phone => {
           });
         }
       } else if (connection === 'open') {
+        waEmitter.on('request.' + whatsAppNo + '.send.message', sendMessageHandler);
+        waEmitter.on('request.' + whatsAppNo + '.stop', stopHandler);
         waEmitter.emit('connection:open', {
           status: 'open', whatsAppNo, channelId,
           eventSource: serverConfig.name + '.connection.update.open',
         });
-
-        waEmitter.on('request.' + whatsAppNo + '.send.message', sendMessageHandler);
-        waEmitter.on('request.' + whatsAppNo + '.stop', stopHandler);
       } else if (qr !== undefined) {
         // WebSocket 创建成功等待扫码，如果没有扫码会更新 qr
         // 第一次一分钟，后面是 20 秒更新一次
         if (qrCode === null) {
           qrCode = qr;
-          console.info('qrCode:', qrCode)
           waEmitter.emit('creds:update', {
             id: generateId(),
             qr, whatsAppNo,
@@ -428,6 +436,14 @@ const createWhatsApp = async phone => {
     waSocket.ev.on('creds.update', handleCredsUpdate);
     waSocket.ev.on('messages.upsert', handleMessagesUpsert);
     waSocket.ev.on('messages.update', handleMessagesUpdate);
+    waSocket.ev.on('groups.update', async ([event]) => {
+      const metadata = await waSocket.groupMetadata(event.id);
+      groupCache.set(event.id, metadata);
+    })
+    waSocket.ev.on('group-participants.update', async (event) => {
+      const metadata = await waSocket.groupMetadata(event.id)
+      groupCache.set(event.id, metadata);
+    })
   };
 
   return {

wai-server/local.js

@@ -1,8 +1,14 @@
 const { createWhatsApp } = require('./core/baileys');
 
+const waEmitter = require('./core/emitter');
 const go = async () => {
   const whatsApp = await createWhatsApp('8618777396951');
   whatsApp.start();
+
+  setTimeout(() => {
+    console.log('sending message...');
+    waEmitter.emit('request.8618777396951.send.message', { to: '8613317835586', externalId: new Date().getTime(), text: 'Hello World: ' + new Date().toUTCString() });
+  }, 5000);
 }
 
 go();