Compatibility with older versions of Node + decodeMedia bug fix

WhatsAppWeb.Query.js

@@ -23,7 +23,7 @@ module.exports = {
      * @return {Promise<[object, object]>}
      */
 	getStatus: function (jid) {
-        jid = jid ?? this.userMetaData.id
+        jid = jid || this.userMetaData.id
 		return this.query(["query","Status",jid])
     },
     /**
@@ -32,7 +32,7 @@ module.exports = {
      * @return {Promise<[object, object]>}
      */
 	getProfilePicture: function (jid) {
-        jid = jid ?? this.userMetaData.id
+        jid = jid || this.userMetaData.id
 		return this.query(["query","ProfilePicThumb",jid])
     },
     /**

WhatsAppWeb.Recv.js

@@ -73,12 +73,12 @@ module.exports = {
                 let callbacks = this.callbacks["function:" + json[0]]
                 var callbacks2
                 var callback
-                for (var key in json[1] ?? {}) {
+                for (var key in json[1] || {}) {
                     callbacks2 = callbacks[key + ":" + json[1][key]]
                     if (callbacks2) { break }
                 }
                 if (!callbacks2) {
-                    for (var key in json[1] ?? {}) {
+                    for (var key in json[1] || {}) {
                         callbacks2 = callbacks[key]
                         if (callbacks2) { break }
                     }
@@ -110,10 +110,15 @@ module.exports = {
      * @return {[string, string]} [type of notification, specific type of message]
      */
     getNotificationType: function (message) {
+        const MessageStubTypes = {
+            20: "addedToGroup",
+            32: "leftGroup",
+            39: "createdGroup"
+        }
         if (message.message) {
             return ["message", Object.keys(message.message)[0]]
         } else if (message.messageStubType) {
-            return [WhatsAppWeb.MessageStubTypes[message.messageStubType] , null]
+            return [MessageStubTypes[message.messageStubType] , null]
         } else {
             return ["unknown", null]
         }
@@ -143,8 +148,8 @@ module.exports = {
             throw "parameters (" + parameters + ") must be a string or array"
         }
         const func = "function:" + parameters[0]
-        const key = parameters[1] ?? ""
+        const key = parameters[1] || ""
-        const key2 = parameters[2] ?? ""
+        const key2 = parameters[2] || ""
         if (!this.callbacks[func]) {
             this.callbacks[func] = {}
         }
@@ -165,8 +170,8 @@ module.exports = {
             throw "parameters (" + parameters + ") must be a string or array"
         }
         const func = "function:" + parameters[0]
-        const key = parameters[1] ?? ""
+        const key = parameters[1] || ""
-        const key2 = parameters[2] ?? ""
+        const key2 = parameters[2] || ""
         if (this.callbacks[func] && this.callbacks[func][key] && this.callbacks[func][key][key2]) {
             delete this.callbacks[func][key][key2]
             return
@@ -211,7 +216,7 @@ module.exports = {
         if (!type) {
             return Promise.reject("unknown message type")
         }
-        if (type === WhatsAppWeb.MessageType.extendedText || type === WhatsAppWeb.MessageType.text) {
+        if (type === "extendedTextMessage" || type === "conversation") {
             return Promise.reject("cannot decode text message")
         }
 

WhatsAppWeb.Send.js

@@ -252,7 +252,7 @@ module.exports = {
 		
 		var buff = Utils.aesEncrypt(binary, this.authInfo.encKey) // encrypt it using AES and our encKey
 		const sign = Utils.hmacSign(buff, this.authInfo.macKey) // sign the message using HMAC and our macKey
-		tag = tag ?? Utils.generateMessageTag()
+		tag = tag || Utils.generateMessageTag()
 		buff = Buffer.concat([ 
 			Buffer.from(tag + ","), // generate & prefix the message tag
 			Buffer.from(tags), // prefix some bytes that tell whatsapp what the message is about
@@ -271,7 +271,7 @@ module.exports = {
 	 */
     sendJSON: function (json, tag) {
 		const str = JSON.stringify(json)
-		tag = tag ?? Utils.generateMessageTag()
+		tag = tag || Utils.generateMessageTag()
 		this.send(tag + "," + str)
 		return tag
 	},

WhatsAppWeb.Session.js

@@ -73,17 +73,21 @@ module.exports = {
 					} else {
 						return this.generateKeysForAuth(json.ref)
 					}
-				case 401: // if the phone was unpaired				
-					throw [json.status, "unpaired from phone", message]
-				case 429: // request to login was denied, don't know why it happens
-					throw [json.status, "request denied, try reconnecting", message]
-				case 304: // request to generate a new key for a QR code was denied
-					throw [json.status, "request for new key denied", message]
 				default:
-					throw [json.status, "unknown error", message]
+					throw [json.status, "unknown error", json]
 			}
 		})
 		.then (([json, q]) => {
+			switch (json.status) {
+				case 401: // if the phone was unpaired				
+					throw [json.status, "unpaired from phone", json]
+				case 429: // request to login was denied, don't know why it happens
+					throw [json.status, "request denied, try reconnecting", json]
+				case 304: // request to generate a new key for a QR code was denied
+					throw [json.status, "request for new key denied", json]
+				default:
+					break
+			}
 			if (json[1] && json[1].challenge) { // if its a challenge request (we get it when logging in)
 				return this.respondToChallenge(json[1].challenge)
 				.then (([json, _]) => { 

example/example.js

@@ -50,7 +50,7 @@ client.connect (authInfo, 30*1000) // connect or timeout in 30 seconds
             // decode, decrypt & save the media. 
             // The extension to the is applied automatically based on the media type
             client.decodeMediaMessage(m.message, "media_in_" + m.key.id)
-            .then (meta => console.log(sender + " sent media, saved at: " + meta.fileName))
+            .then (meta => console.log(sender + " sent media, saved at: " + meta.filename))
             .catch (err => console.log("error in decoding message: " + err))
         }
         // send a reply after 3 seconds