YoutubeScript.js

const URL_BASE = "https://www.youtube.com";
const URL_BASE_M = "https://m.youtube.com";
const URL_HOME = "https://www.youtube.com";
const URL_TRENDING = "https://www.youtube.com/feed/trending";
const URL_CONTEXT = "https://www.youtube.com";
const URL_CONTEXT_M = "https://m.youtube.com";

const URL_CHANNEL_VIDEOS = "/videos";
const URL_CHANNEL_STREAMS = "/streams";
const URL_CHANNEL_PLAYLISTS = "/playlists";
const URL_SEARCH_SUGGESTIONS = "https://suggestqueries-clients6.youtube.com/complete/search?client=youtube&gs_ri=youtube&ds=yt&q=";
const URL_SEARCH = "https://www.youtube.com/youtubei/v1/search";
const URL_BROWSE = "https://www.youtube.com/youtubei/v1/browse";
const URL_BROWSE_MOBILE = "https://m.youtube.com/youtubei/v1/browse";
const URL_NEXT = "https://www.youtube.com/youtubei/v1/next";
const URL_NEXT_MOBILE = "https://m.youtube.com/youtubei/v1/next";
const URL_GUIDE = "https://www.youtube.com/youtubei/v1/guide";
const URL_SUB_CHANNELS_M = "https://m.youtube.com/feed/channels";
const URL_SUBSCRIPTIONS_M = "https://m.youtube.com/feed/subscriptions";
const URL_PLAYLIST = "https://youtube.com/playlist?list=";
const URL_PLAYLISTS_M = "https://m.youtube.com/feed/library";

const URL_CHANNEL_BASE = URL_BASE + "/channel/";

const URL_LIVE_CHAT_HTML = "https://www.youtube.com/live_chat";
const URL_LIVE_CHAT = "https://www.youtube.com/youtubei/v1/live_chat/get_live_chat";

const URL_WATCHTIME = "https://www.youtube.com/api/stats/watchtime";

const URL_PLAYER = "https://youtubei.googleapis.com/youtubei/v1/player";

const URL_YOUTUBE_DISLIKES = "https://returnyoutubedislikeapi.com/votes?videoId=";
const URL_YOUTUBE_SPONSORBLOCK = "https://sponsor.ajay.app/api/skipSegments?videoID=";

const URL_YOUTUBE_RSS = "https://www.youtube.com/feeds/videos.xml?channel_id=";

//Newest to oldest
const CIPHER_TEST_HASHES = ["3400486c", "b22ef6e7", "a960a0cb", "178de1f2", "4eae42b1", "f98908d1", "0e6aaa83", "d0936ad4", "8e83803a", "30857836", "4cc5d082", "f2f137c6", "1dda5629", "23604418", "71547d26", "b7910ca8"];
const CIPHER_TEST_PREFIX = "/s/player/";
const CIPHER_TEST_SUFFIX = "/player_ias.vflset/en_US/base.js";

const PLATFORM = "YouTube";
const PLATFORM_CLAIMTYPE = 2;

const BROWSE_TRENDING = "FEtrending";
const BROWSE_WHAT_TO_WATCH = "FEwhat_to_watch";
const BROWSE_SUBSCRIPTIONS = "FEsubscriptions";

const SEARCH_CHANNELS_PARAM = "EgIQAg%3D%3D";
const SEARCH_PLAYLISTS_PARAM = "EgIQAw%3D%3D";

const REGEX_VIDEO_URL_DESKTOP = new RegExp("https://(.*\\.)?youtube\\.com/watch.*?v=(.*)");
const REGEX_VIDEO_URL_SHARE = new RegExp("https://youtu\\.be/(.*)");
const REGEX_VIDEO_URL_SHARE_LIVE = new RegExp("https://(.*\\.)?youtube\\.com/live/(.*)");
const REGEX_VIDEO_URL_SHORT = new RegExp("https://(.*\\.)?youtube\\.com/shorts/(.*)");
const REGEX_VIDEO_URL_CLIP = new RegExp("https://(.*\\.)?youtube\\.com/clip/(.*)[?]?");
const REGEX_VIDEO_URL_EMBED = new RegExp("https://(.*\\.)?youtube\\.com/embed/([^?]+)");

const REGEX_VIDEO_CHANNEL_URL = new RegExp("https://(.*\\.)?youtube\\.com/channel/(.*)");
const REGEX_VIDEO_CHANNEL_URL2 = new RegExp("https://(.*\\.)?youtube\\.com/user/.*");
const REGEX_VIDEO_CHANNEL_URL3 =  new RegExp("https://(.*\\.)?youtube\\.com/@.*");
const REGEX_VIDEO_CHANNEL_URL4 =  new RegExp("https://(.*\\.)?youtube\\.com/c/*");

const REGEX_VIDEO_PLAYLIST_URL = new RegExp("https://(.*\\.)?youtube\\.com/playlist\\?list=.*");

const REGEX_INITIAL_DATA = new RegExp("<script.*?var ytInitialData = (.*?);<\/script>");
const REGEX_INITIAL_PLAYER_DATA = new RegExp("<script.*?var ytInitialPlayerResponse = (.*?});");

//TODO: Make this one more flexible/reliable. For now used as fallback if initial fails.
const REGEX_INITIAL_PLAYER_DATA_FALLBACK = new RegExp("<script.*?var ytInitialPlayerResponse = (.*});var meta = document\.createElement");

const REGEX_HUMAN_NUMBER = new RegExp("([0-9\\.,]*)([a-zA-Z]*)");
const REGEX_HUMAN_AGO = new RegExp("([0-9]*) ([a-zA-Z]*) ago");

const REGEX_DATE_HUMAN = new RegExp("([A-Za-z]*) ([0-9]*), ([1-9][0-9][0-9][0-9])");
const REGEX_DATE_ISO = new RegExp("([1-9][0-9][0-9][0-9])-([0-9][0-9])-([0-9][0-9])");
const REGEX_DATE_EU = new RegExp("([0-9][0-9])-([0-9][0-9])-([1-9][0-9][0-9][0-9])");
const REGEX_DATE_US = new RegExp("([0-9][0-9])/([0-9][0-9])/([1-9][0-9][0-9][0-9])");

const REGEX_CONTINUATION = new RegExp("\"continuation\":\"(.*?)\"");

const REGEX_INNERTUBE_KEY = new RegExp("\"INNERTUBE_API_KEY\":\"(.*?)\"");

const REGEX_YTCFG = new RegExp(/ytcfg\.set\((.*?)\);/g);

const REGEX_URL_KIND = new RegExp(/.*?\?kind=([^&]*)/g);
const REGEX_ASR = new RegExp(/<text .*?start="(.*?)" .*?dur="(.*?)".*?>(.*?)<\/text>/gms);

const USER_AGENT_WINDOWS = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36";
const USER_AGENT_PHONE = "Mozilla/5.0 (Linux; Android 10) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.5481.153 Mobile Safari/537.36";
const USER_AGENT_TABLET = "Mozilla/5.0 (iPad; CPU OS 13_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/87.0.4280.77 Mobile/15E148 Safari/604.1";

const IOS_APP_VERSION = "19.14.3"
const IOS_DEVICE_VERSION = "iPhone15,4"
const IOS_OS_VERSION = "17_4_1"
const IOS_OS_VERSION_DETAILED = "17.4.1.21E237"
const USER_AGENT_IOS = "com.google.ios.youtube/" + IOS_APP_VERSION + "(" + IOS_DEVICE_VERSION + "; U; CPU iOS " + IOS_OS_VERSION + " like Mac OS X; US)";

const USER_AGENT_ANDROID = "com.google.android.youtube/17.31.35 (Linux; U; Android 12; US) gzip";
const USER_AGENT_TVHTML5_EMBED = "Mozilla/5.0 (CrKey armv7l 1.5.16041) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.0 Safari/537.36";

const USE_MOBILE_PAGES = true;
const USE_ANDROID_FALLBACK = false;
const USE_IOS_FALLBACK = true;
const USE_IOS_VIDEOS_FALLBACK = true;

let USE_ABR_VIDEOS = false;

const SORT_VIEWS_STRING = "Views";
const SORT_RATING_STRING = "Rating";

var config = {};
var _settings = {};
var _clientContext = {};
var _clientContextAuth = {};
var visitorId = "";
var langDisplayRegion = "en-US";
var langDisplay = "en";
var langRegion = "US";

var _prefetchHome = null;
var _prefetchHomeAuth = null;
var _prefetchHomeUsed = false;


function getClientContext(isAuth = false) {
	return (isAuth) ? _clientContextAuth : _clientContext;
}

//#region Source Methods
source.setSettings = function(settings) {
	_settings = settings;
}
source.enable = (conf, settings, saveStateStr) => {
	config = conf ?? {};
	_settings = settings ?? {};
	
	USE_ABR_VIDEOS = !!_settings.useUMP && (bridge.buildSpecVersion ?? 1) > 1;
	log("ABR Enabled: " + USE_ABR_VIDEOS);

	//log("Settings:\n" + JSON.stringify(settings, null, "   "));

	let didSaveState = false;
	try {
	    if(saveStateStr) {
	        const saveState = JSON.parse(saveStateStr);
	        if(saveState &&
	            saveState.clientContext &&
	            saveState.clientContextAuth) {
                _clientContext = saveState.clientContext;
                _clientContextAuth = saveState.clientContextAuth;
                _prefetchHomeUsed = true;
                _prefetchHome = undefined;
                _prefetchHomeAuth = undefined;
                didSaveState = true;
                log("Using save state");
	        }
	    }
	}
    catch(ex) {
        log("Failed to parse saveState:" + ex);
        didSaveState = false;
    }
    if(!didSaveState) {
	    log(config);

        const isLoggedIn = bridge.isLoggedIn();
        let batchReq = http.batch()
            .GET(URL_CONTEXT, {"Accept-Language": "en-US" }, false);
        if(isLoggedIn)
            batchReq = batchReq.GET(URL_CONTEXT_M, { "User-Agent": USER_AGENT_TABLET, "Accept-Language": "en-US" }, true);
        const batchResp = batchReq.execute();

		console.log("batchResp", batchResp);
		throwIfCaptcha(batchResp[0])
		if (!batchResp[0].isOk)
			throw new ScriptException("Failed to request context enable !batchResp[0].isOk");

        if(isLoggedIn && !batchResp[1].isOk) throw new ScriptException("Failed to request context enable isLoggedIn && !batchResp[1].isOk");

        _clientContext = getClientConfig(batchResp[0].body)//requestClientConfig(false);
        if(isLoggedIn) {
            log("Logged in, fetching auth context");
            _clientContextAuth = getClientConfig(batchResp[1].body)//requestClientConfig(USE_MOBILE_PAGES, true);

            _prefetchHomeAuth = getInitialData(batchResp[1].body, true);
        }
        else {
            _clientContextAuth = _clientContext;
            _prefetchHomeAuth = null;
        }
        _prefetchHome = getInitialData(batchResp[0].body, false);
        _prefetchHomeAuth = _prefetchHomeAuth ?? _prefetchHome;
        _prefetchHomeUsed = false;
    }


	let innerContext = _clientContext.INNERTUBE_CONTEXT;
	let innerContextAuth = _clientContextAuth.INNERTUBE_CONTEXT;