Product Message + Message Info

src/WAClient/Constants.ts

@@ -33,6 +33,7 @@ export enum MessageType {
     sticker = 'stickerMessage',
     document = 'documentMessage',
     audio = 'audioMessage',
+    product = 'productMessage'
 }
 export enum ChatModification {
     archive='archive',

src/WAClient/Messages.ts

@@ -18,6 +18,11 @@ import { validateJIDForSending, generateThumbnail, getMediaKeys } from './Utils'
 import { proto } from '../../WAMessage/WAMessage'
 
 export default class WhatsAppWebMessages extends WhatsAppWebBase {
+    /** Get the message info, who has read it, who its been delivered to */
+    async messageInfo (jid: string, messageID: string) {
+        const query = ['query', {type: 'message_info', index: messageID, jid: jid, epoch: this.msgCount.toString()}, null]
+        return this.queryExpecting200 (query, [22, WAFlag.ignore])
+    }
     /**
      * Send a read receipt to the given ID for a certain message
      * @param jid the ID of the person/group whose message you want to mark read
@@ -67,6 +72,15 @@ export default class WhatsAppWebMessages extends WhatsAppWebBase {
         response.stamp = strStamp
         return response as {status: number, stamp: string}
     }
+    async loadMessage (jid: string, messageID: string) {
+        const messages = await this.loadConversation (jid, 1, {id: messageID, fromMe: false}, false)
+        var index = null
+        if (messages.length > 0) {
+            index = {id: messages[0].key.id, fromMe: false}
+        }
+        const actual = await this.loadConversation (jid, 1, index)
+        return actual[0]
+    }
     /**
      * Search WhatsApp messages with a given text string
      * @param txt the search string

src/WAClient/Tests.ts

@@ -171,8 +171,8 @@ WAClientTest('Groups', (client) => {
         await client.groupRemove(gid, [testJid])
     })
     it('should leave the group', async () => {
-       // await client.groupLeave(gid)
-        await client.groupCreatorAndParticipants ('919324993767-1593506879@g.us')
+        await client.groupLeave(gid)
+        await client.groupCreatorAndParticipants (gid)
     })
     it('should archive the group', async () => {
         await client.archiveChat(gid)

src/WAClient/Utils.ts

@@ -87,13 +87,10 @@ export async function generateThumbnail(buffer: Buffer, mediaType: MessageType,
     }
 }
 /**
- * Decode a media message (video, image, document, audio) & save it to the given file
+ * Decode a media message (video, image, document, audio) & return decrypted buffer
  * @param message the media message you want to decode
- * @param filename the name of the file where the media will be saved
- * @param attachExtension should the correct extension be applied automatically to the file
  */
-export async function decodeMediaMessage(message: WAMessageContent, filename: string, attachExtension: boolean=true) {
-    const getExtension = (mimetype) => mimetype.split(';')[0].split('/')[1]
+export async function decodeMediaMessageBuffer(message: WAMessageContent) {
     /* 
         One can infer media type from the key in the message
         it is usually written as [mediaType]Message. Eg. imageMessage, audioMessage etc.
@@ -106,15 +103,17 @@ export async function decodeMediaMessage(message: WAMessageContent, filename: st
         throw new Error('cannot decode text message')
     }
     if (type === MessageType.location || type === MessageType.liveLocation) {
-        fs.writeFileSync(filename + '.jpeg', message[type].jpegThumbnail)
-        return { filename: filename + '.jpeg' }
+        return new Buffer(message[type].jpegThumbnail)
     }
-    const messageContent = message[type] as
-        | proto.VideoMessage
-        | proto.ImageMessage
-        | proto.AudioMessage
-        | proto.DocumentMessage
-
+    let messageContent: proto.IVideoMessage | proto.IImageMessage | proto.IAudioMessage | proto.IDocumentMessage
+    if (message.productMessage) {
+        const product = message.productMessage.product?.productImage
+        if (!product) throw new Error ('product has no image')
+        messageContent = product
+    } else {
+        messageContent = message[type]
+    }
+    
     // download the message
     const fetched = await fetch(messageContent.url, { headers: { Origin: 'https://web.whatsapp.com' } })
     const buffer = await fetched.buffer()
@@ -146,13 +145,38 @@ export async function decodeMediaMessage(message: WAMessageContent, filename: st
             const decrypted = decryptedMedia (allTypes[i] as MessageType)
             
             if (i > 0) { console.log (`decryption of ${type} media with HKDF key of ${allTypes[i]}`) }
-            
-            const trueFileName = attachExtension ? (filename + '.' + getExtension(messageContent.mimetype)) : filename
-            fs.writeFileSync(trueFileName, decrypted)
-            return trueFileName
+            return decrypted
         } catch {
             if (i === 0) { console.log (`decryption of ${type} media with original HKDF key failed`) }
         }
     }
     throw new Error('HMAC sign does not match for ' + buffer.length)
 }
+/**
+ * Decode a media message (video, image, document, audio) & save it to the given file
+ * @param message the media message you want to decode
+ * @param filename the name of the file where the media will be saved
+ * @param attachExtension should the correct extension be applied automatically to the file
+ */
+export async function decodeMediaMessage(message: WAMessageContent, filename: string, attachExtension: boolean=true) {
+    const getExtension = (mimetype) => mimetype.split(';')[0].split('/')[1]
+    
+    const buffer = await decodeMediaMessageBuffer (message)
+    const type = Object.keys(message)[0] as MessageType
+    let extension
+    if (type === MessageType.location || type === MessageType.liveLocation) {
+        extension = '.jpeg'
+    } else {
+        const messageContent = message[type] as
+                                | proto.VideoMessage
+                                | proto.ImageMessage
+                                | proto.AudioMessage
+                                | proto.DocumentMessage
+        extension = getExtension (messageContent.mimetype)
+    }
+    
+    const trueFileName = attachExtension ? (filename + '.' + extension) : filename
+    fs.writeFileSync(trueFileName, buffer)
+    return trueFileName
+}
+

src/WAConnection/BrowserMessageDecoding.ts

@@ -40,8 +40,14 @@ const list = wsMessages.map ((item, i) => {
         const [tag, json, binaryTags] = decrypt (buffer)
         return {tag, json: JSON.stringify(json), binaryTags}
     } catch (error) {
-        console.error (`received error in decoding ${i}: ${error}`)
-        return null
+        try {
+            const [tag, json, binaryTags] = decrypt (item.data)
+            return {tag, json: JSON.stringify(json), binaryTags}
+        } catch (error) {
+            console.log ('error in decoding: ' + error)
+            return null
+        }
+        
     }
 })
 const str = JSON.stringify (list, null, '\t')