jirayu_sri/YouTube.js
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chore: add comments and format code

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LuanRT
2021-10-25 18:02:28 -03:00
parent 389b0f362f
commit b2117f11b9
6 changed files with 33 additions and 41 deletions
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15
lib/Actions.js
View File

@@ -1,9 +1,9 @@
'use strict';
const Uuid = require('uuid');
const Axios = require('axios');
const Utils = require('./Utils');
const Constants = require('./Constants');
const Uuid = require('uuid');
async function engage(session, engagement_type, args = {}) {
if (!session.logged_in) throw new Error('You are not logged in');
@@ -56,7 +56,7 @@ async function browse(session, action_type) {
break;
default:
}
const response = await Axios.post(`${Constants.urls.YT_BASE_URL}/youtubei/v1/browse${session.logged_in && session.cookie.length < 1 ? '' : `?key=${session.key}`}`, JSON.stringify(data), Constants.innertube_request_opts({ session })).catch((error) => error);
if (response instanceof Error) return { success: false, status_code: response.response.status, message: response.message };
return {
@@ -104,11 +104,11 @@ async function notifications(session, action_type, args = {}) {
async function livechat(session, action_type, args = {}) {
let data;
switch (action_type) {
case 'live_chat/send_message':
case 'live_chat/send_message':
data = {
context: session.context,
params: Utils.generateMessageParams(args.channel_id, args.video_id),
clientMessageId: `INntLiB${Uuid.v4()}`,
clientMessageId: `ytjs-${Uuid.v4()}`,
richMessage: {
textSegments: [{ text: args.text }]
}
@@ -127,7 +127,7 @@ async function livechat(session, action_type, args = {}) {
break;
default:
}
const response = await Axios.post(`${Constants.urls.YT_BASE_URL}/youtubei/v1/${action_type}${session.logged_in && session.cookie.length < 1 ? '' : `?key=${session.key}`}`, JSON.stringify(data), Constants.innertube_request_opts({ session, params: args.params })).catch((error) => error);
if (response instanceof Error) return { success: false, status_code: response.response.status, message: response.message };
return {
@@ -139,10 +139,7 @@ async function livechat(session, action_type, args = {}) {
async function getContinuation(session, info = {}) {
let data = { context: session.context };
if (info.continuation_token) {
data.continuation = info.continuation_token;
}
info.continuation_token && (data.continuation = info.continuation_token);
if (info.video_id) {
data.videoId = info.video_id;

18
lib/Constants.js
View File

@@ -20,7 +20,6 @@ const oauth_reqopts = {
'origin': urls.YT_BASE_URL,
'user-agent': 'Mozilla/5.0 (ChromiumStylePlatform) Cobalt/Version',
'content-type': 'application/json',
'x-requested-with': 'mark.via.gp',
'referer': `${urls.YT_BASE_URL}/tv`,
'accept-language': 'en-US'
}
@@ -41,7 +40,7 @@ const default_headers = (session) => {
};
const innertube_request_opts = (info) => {
if (info.desktop === undefined) info.desktop = true;
info.desktop === undefined && (info.desktop = true);
let req_opts = {
params: info.params || {},
headers: {
@@ -58,16 +57,14 @@ const innertube_request_opts = (info) => {
'origin': info.desktop ? urls.YT_BASE_URL : urls.YT_MOBILE_URL,
}
};
info.id && (req_opts.headers.referer = (info.desktop ? urls.YT_BASE_URL : urls.YT_MOBILE_URL) + '/watch?v=' + info.id);
if (info.session.logged_in && info.desktop) {
req_opts.headers.Cookie = info.session.cookie;
req_opts.headers.authorization = info.session.cookie.length < 1 ? `Bearer ${info.session.access_token}` : info.session.auth_apisid;
}
if (info.id) {
req_opts.headers.referer = (info.desktop ? urls.YT_BASE_URL : urls.YT_MOBILE_URL) + '/watch?v=' + info.id;
}
return req_opts;
};
@@ -100,9 +97,7 @@ const stream_headers = (range) => {
'Referer': urls.YT_BASE_URL,
'DNT': '?1'
};
if (range) {
headers.Range = range;
}
range && (headers.Range = range);
return headers;
};
@@ -175,14 +170,13 @@ const formatVideoData = (data, context, desktop) => {
return video_details;
};
const base64_alphabet = {
normal: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_'.split(''),
reverse: '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_'.split('')
};
const filters = (order) => {
// TODO: Refactor this with protobuf encoding
const filters = (order) => {
// It seems like all of these are just proto buffers, so I think it'll be easy to refactor
switch (order) {
case 'any,any,relevance':
return 'EgIQAQ%3D%3D';

18
lib/NToken.js
View File

@@ -7,14 +7,14 @@ class NToken {
constructor(raw_code) {
this.raw_code = raw_code;
this.null_placeholder_regex = /c\[(.*?)\]=c/g;
this.transformation_args_regex = /c\[(.*?)\]\((.+?)\)/g;
this.transformations_calls_rege = /c\[(.*?)\]\((.+?)\)/g;
}
transform(n) {
let n_token = n.split('');
let transformations = this.getTransformationData(this.raw_code);
// Identifies the necessary transformation functions and emulates them accordingly.
// Identifies the necessary transformation data and emulates them accordingly.
transformations = transformations.map((el) => {
if (el != null && typeof el != 'number') {
const is_reverse_base64 = el.includes('case 65:');
@@ -48,8 +48,8 @@ class NToken {
null_placeholder_positions.forEach((pos) => transformations[pos] = transformations);
// Parses and emulates calls to functions of the transformations array.
let transformation_args = [...Utils.getStringBetweenStrings(this.raw_code.replace(/\n/g, ''), 'try{', '}catch').matchAll(this.transformation_args_regex)].map((params) => ({ index: params[1], params: params[2] }));
transformation_args.forEach((data) => {
let transformation_calls = [...Utils.getStringBetweenStrings(this.raw_code.replace(/\n/g, ''), 'try{', '}catch').matchAll(this.transformations_calls_rege)].map((params) => ({ index: params[1], params: params[2] }));
transformation_calls.forEach((data) => {
const index = data.index;
const param_index = data.params.split(',').map((param) => param.match(/c\[(.*?)\]/)[1]);
transformations[index](transformations[param_index[0]], transformations[param_index[1]]);
@@ -59,7 +59,7 @@ class NToken {
}
getTransformationData() {
let transformation_data = '[' + Utils.getStringBetweenStrings(this.raw_code, 'c=[', '];c') + ']';
let transformation_data = `[${Utils.getStringBetweenStrings(this.raw_code, 'c=[', '];c')}]`;
transformation_data = transformation_data
.replace(/function\(d,e\)/g, '"function(d,e)')
.replace(/function\(d\)/g, '"function(d)')
@@ -74,11 +74,11 @@ class NToken {
return JSON.parse(transformation_data);
}
translateAB(arr, e, is_reverse_base64) {
translateAB(arr, index, is_reverse_base64) {
let characters = is_reverse_base64 && Constants.base64_alphabet.reverse || Constants.base64_alphabet.normal;
arr.forEach(function(char, index, loc) {
this.push(loc[index] = characters[(characters.indexOf(char) - characters.indexOf(this[index]) + 64) % characters.length]);
}, e.split(''));
}, index.split(''));
}
unshiftPop(arr, index) {
@@ -97,9 +97,7 @@ class NToken {
spliceReverseUnshift(arr, index) {
index = (index % arr.length + arr.length) % arr.length;
arr.splice(-index).reverse().forEach(function(f) {
arr.unshift(f);
});
arr.splice(-index).reverse().forEach((f) => arr.unshift(f));
}
spliceOnce(arr, index) {

6
lib/OAuth.js
View File

@@ -119,13 +119,13 @@ class OAuth extends EventEmitter {
async getClientIdentity() {
// The first request is made to get the auth script url, hard-coding it isn't viable as it changes overtime.
const yttv_response = await Axios.get(`${Constants.urls.YT_BASE_URL}/tv`, Constants.oauth_reqopts).catch((error) => error);
if (yttv_response instanceof Error) throw new Error(`Could not get identify: ${yttv_response.message}`);
if (yttv_response instanceof Error) throw new Error(`Could not extract client identify: ${yttv_response.message}`);
// Here we get the script and extract the necessary data to proceed with the auth flow.
const url_body = this.auth_script_regex.exec(yttv_response.data)[1];
const script_url = `${Constants.urls.YT_BASE_URL}/${url_body}`;
const response = await Axios.get(script_url, Constants.default_headers).catch((error) => error);
if (response instanceof Error) throw new Error(`Could not fetch data from auth script: ${response.message}`);
if (response instanceof Error) throw new Error(`Could not extract client identify: ${response.message}`);
const identity_function = Utils.getStringBetweenStrings(response.data, '=function(){var a=window.environment', '(function()');
const client_identity = identity_function.match(this.identity_regex).groups;
@@ -145,7 +145,7 @@ class OAuth extends EventEmitter {
const response = await Axios.post(this.oauth_token_url, JSON.stringify(data), Constants.oauth_reqopts).catch((error) => error);
if (response instanceof Error)
return this.emit('refresh-token', {
error: 'Could not refresh token.',
error: 'Could not refresh access token.',
status: 'FAILED'
});

11
lib/Player.js
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@@ -19,10 +19,13 @@ class Player {
this.getNEncoder(player_data);
} else {
const response = await Axios.get(`${Constants.urls.YT_BASE_URL}${this.session.player_url}`, { path: this.session.playerUrl, headers: { 'content-type': 'text/javascript', 'user-agent': Utils.getRandomUserAgent('desktop').userAgent } }).catch((error) => error);
if (response instanceof Error) throw new Error('Could not get player data: ' + response.message);
if (response instanceof Error) throw new Error('Could not download player script: ' + response.message);
fs.mkdirSync(this.tmp_cache_dir, { recursive: true });
fs.writeFileSync(`${this.tmp_cache_dir}/${this.player_name}.js`, response.data);
try {
// Caches the current player so we don't have to download it all the time
fs.mkdirSync(this.tmp_cache_dir, { recursive: true });
fs.writeFileSync(`${this.tmp_cache_dir}/${this.player_name}.js`, response.data);
} catch (err) {}
this.getSigDecipherCode(response.data);
this.getNEncoder(response.data);
@@ -36,7 +39,7 @@ class Player {
}
getNEncoder(data) {
this.ntoken_sc = 'var b=a.split("")' + Utils.getStringBetweenStrings(data, 'b=a.split("")', '}return b.join("")}') + '} return b.join("");';
this.ntoken_sc = `var b=a.split("")${Utils.getStringBetweenStrings(data, 'b=a.split("")', '}return b.join("")}')}} return b.join("");`;
}
}

6
lib/SigDecipher.js
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@@ -20,10 +20,10 @@ class SigDecipher {
arr.splice(0, end);
}
function swap(arr, position) {
function swap(arr, index) {
let origArrI = arr[0];
arr[0] = arr[position % arr.length];
arr[position % arr.length] = origArrI;
arr[0] = arr[index % arr.length];
arr[index % arr.length] = origArrI;
}
function reverse(arr) {