fix websocket upgrade error

Fix "TikTok does not offer a websocket upgrade" error due to missing "Sec-Websocket-Protocol" header in response.

Author: zerodytrash

package.json

@@ -1,6 +1,6 @@
 {
   "name": "tiktok-live-connector",
-  "version": "1.1.3",
+  "version": "1.1.4",
   "description": "Node.js module to receive live stream chat events like comments and gifts from TikTok LIVE",
   "main": "index.js",
   "types": "./dist/index.d.ts",

src/index.js

@@ -405,7 +405,7 @@ class WebcastPushConnection extends EventEmitter {
 
     async #fetchRoomData(isInitial) {
         let webcastResponse = await this.#httpClient.getDeserializedObjectFromWebcastApi('im/fetch/', this.#clientParams, 'WebcastResponse', isInitial);
-        let upgradeToWsOffered = !!webcastResponse.wsUrl && !!webcastResponse.wsParam;
+        let upgradeToWsOffered = !!webcastResponse.wsUrl;
 
         if (!webcastResponse.cursor) {
             if (isInitial) {
@@ -438,7 +438,7 @@ class WebcastPushConnection extends EventEmitter {
         try {
             // Websocket specific params
             let wsParams = {
-                imprp: webcastResponse.wsParam.value,
+                imprp: webcastResponse.wsParam?.value || '',
                 compress: 'gzip',
             };
 

src/lib/webcastConfig.js

@@ -17,7 +17,7 @@ module.exports = {
         device_platform: 'web',
         focus_state: true,
         from_page: 'user',
-        history_len: 4,
+        history_len: 0,
         is_fullscreen: false,
         is_page_visible: true,
         did_rule: 3,
@@ -30,7 +30,8 @@ module.exports = {
         tz_name: 'Europe/Berlin',
         referer: 'https://www.tiktok.com/',
         root_referer: 'https://www.tiktok.com/',
-        version_code: 180800,
+        host: 'https://webcast.tiktok.com',
+        version_code: 270000,
         webcast_sdk_version: '1.3.0',
         update_version_code: '1.3.0',
     },

src/lib/webcastWebsocket.js

@@ -15,7 +15,7 @@ class WebcastWebsocket extends websocket.client {
         };
 
         this.#handleEvents();
-        this.connect(this.wsUrlWithParams, 'echo-protocol', Config.TIKTOK_URL_WEBCAST, this.wsHeaders, websocketOptions);
+        this.connect(this.wsUrlWithParams, '', Config.TIKTOK_URL_WEB, this.wsHeaders, websocketOptions);
     }
 
     #handleEvents() {