refactor: get visitor data from the API [skip ci]

src/core/Session.ts

@@ -1,12 +1,11 @@
 import Player from './Player';
-import Proto from '../proto/index';
 import Actions from './Actions';
 import Constants from '../utils/Constants';
 import UniversalCache from '../utils/Cache';
 import EventEmitterLike from '../utils/EventEmitterLike';
 
 import HTTPClient, { FetchFunction } from '../utils/HTTPClient';
-import { DeviceCategory, generateRandomString, getRandomUserAgent, InnertubeError, SessionError } from '../utils/Utils';
+import { DeviceCategory, getRandomUserAgent, InnertubeError, SessionError } from '../utils/Utils';
 import OAuth, { Credentials, OAuthAuthErrorEventHandler, OAuthAuthEventHandler, OAuthAuthPendingEventHandler } from './OAuth';
 
 export enum ClientType {
@@ -140,16 +139,12 @@ export default class Session extends EventEmitterLike {
 
     const [ [ device_info ], api_key ] = ytcfg;
 
-    const id = generateRandomString(11);
-    const timestamp = Math.floor(Date.now() / 1000);
-    const visitor_data = Proto.encodeVisitorData(id, timestamp);
-
     const context: Context = {
       client: {
         hl: device_info[0],
         gl: device_info[2],
         remoteHost: device_info[3],
-        visitorData: visitor_data,
+        visitorData: data[3],
         userAgent: device_info[14],
         clientName: client_name,
         clientVersion: device_info[16],

src/proto/index.ts

@@ -1,17 +1,9 @@
 import { CLIENTS } from '../utils/Constants';
 import { u8ToBase64 } from '../utils/Utils';
 import { VideoMetadata } from '../core/Studio';
-import { ChannelAnalytics, CreateCommentParams, CreateCommentReplyParams, GetCommentsSectionParams, InnertubePayload, LiveMessageParams, MusicSearchFilter, NotificationPreferences, PeformCommentActionParams, SearchFilter, SoundInfoParams, VisitorData } from './youtube';
+import { ChannelAnalytics, CreateCommentParams, CreateCommentReplyParams, GetCommentsSectionParams, InnertubePayload, LiveMessageParams, MusicSearchFilter, NotificationPreferences, PeformCommentActionParams, SearchFilter, SoundInfoParams } from './youtube';
 
 class Proto {
-  static encodeVisitorData(id: string, timestamp: number) {
-    const buf = VisitorData.toBinary({
-      id,
-      timestamp
-    });
-    return encodeURIComponent(u8ToBase64(buf).replace(/\/|\+/g, '_'));
-  }
-
   static encodeChannelAnalyticsParams(channel_id: string) {
     const buf = ChannelAnalytics.toBinary({
       params: {

src/proto/youtube.proto

@@ -3,11 +3,6 @@
 syntax = "proto2";
 package youtube;
 
-message VisitorData {
-  required string id = 1;
-  required int32 timestamp = 5;
-}
-
 message ChannelAnalytics {
   message Params {
     required string channel_id = 1001;