From 4f7ec07c3f689219b07e8291877c23b6fbf45fb1 Mon Sep 17 00:00:00 2001
From: LuanRT <luan.lrt4@gmail.com>
Date: Sun, 30 Apr 2023 00:50:08 -0300
Subject: [PATCH] fix(web): slow downloads due to visitor data (#391)

* fix(web): slow downloads due to visitor data

It seems that YouTube will throttle clients if a shared visitor id is used.

* dev: include `params` for `/player` reqs
---
 src/core/Session.ts                  | 8 ++++----
 src/core/endpoints/PlayerEndpoint.ts | 9 ++-------
 2 files changed, 6 insertions(+), 11 deletions(-)

diff --git a/src/core/Session.ts b/src/core/Session.ts
index e94359c61..4718279eb 100644
--- a/src/core/Session.ts
+++ b/src/core/Session.ts
@@ -7,8 +7,8 @@ import Proto from '../proto/index.js';
 import type { ICache } from '../types/Cache.js';
 import type { FetchFunction } from '../types/PlatformShim.js';
 import HTTPClient from '../utils/HTTPClient.js';
-import type { DeviceCategory} from '../utils/Utils.js';
-import { getRandomUserAgent, InnertubeError, Platform, SessionError } from '../utils/Utils.js';
+import type { DeviceCategory } from '../utils/Utils.js';
+import { generateRandomString, getRandomUserAgent, InnertubeError, Platform, SessionError } from '../utils/Utils.js';
 import type { Credentials, OAuthAuthErrorEventHandler, OAuthAuthEventHandler, OAuthAuthPendingEventHandler } from './OAuth.js';
 import OAuth from './OAuth.js';
 
@@ -236,7 +236,7 @@ export default class Session extends EventEmitterLike {
   }, fetch: FetchFunction = Platform.shim.fetch): Promise<SessionData> {
     const url = new URL('/sw.js_data', Constants.URLS.YT_BASE);
 
-    let visitor_id = Constants.CLIENTS.WEB.STATIC_VISITOR_ID;
+    let visitor_id = generateRandomString(11);
 
     if (options.visitor_data) {
       const decoded_visitor_data = Proto.decodeVisitorData(options.visitor_data);
@@ -308,7 +308,7 @@ export default class Session extends EventEmitterLike {
     enable_safety_mode: boolean;
     visitor_data: string;
   }): SessionData {
-    let visitor_id = Constants.CLIENTS.WEB.STATIC_VISITOR_ID;
+    let visitor_id = generateRandomString(11);
 
     if (options.visitor_data) {
       const decoded_visitor_data = Proto.decodeVisitorData(options.visitor_data);
diff --git a/src/core/endpoints/PlayerEndpoint.ts b/src/core/endpoints/PlayerEndpoint.ts
index 7bab7a49a..41560c848 100644
--- a/src/core/endpoints/PlayerEndpoint.ts
+++ b/src/core/endpoints/PlayerEndpoint.ts
@@ -8,11 +8,6 @@ export const PATH = '/player';
  * @returns The payload.
  */
 export function build(opts: PlayerEndpointOptions): IPlayerRequest {
-  const is_android =
-    opts.client === 'ANDROID' ||
-    opts.client === 'YTMUSIC_ANDROID' ||
-    opts.client === 'YTSTUDIO_ANDROID';
-
   return {
     playbackContext: {
       contentPlaybackContext: {
@@ -39,8 +34,8 @@ export function build(opts: PlayerEndpointOptions): IPlayerRequest {
     ...{
       client: opts.client,
       playlistId: opts.playlist_id,
-      // Workaround streaming URLs returning 403 when using Android clients.
-      params: is_android ? '8AEB' : opts.params
+      // Workaround streaming URLs returning 403 when using Android clients and throttling in web clients.
+      params: '8AEB'
     }
   };
 }
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