Files
YouTube.js/lib/Innertube.js
2022-05-08 21:51:16 -03:00

945 lines
33 KiB
JavaScript

'use strict';
const Axios = require('axios');
const Stream = require('stream');
const Parser = require('./parser');
const CancelToken = Axios.CancelToken;
const EventEmitter = require('events');
const OAuth = require('./core/OAuth');
const Actions = require('./core/Actions');
const Livechat = require('./core/Livechat');
const SessionBuilder = require('./core/SessionBuilder');
const Utils = require('./utils/Utils');
const Request = require('./utils/Request');
const Constants = require('./utils/Constants');
const Proto = require('./proto');
const NToken = require('./deciphers/NToken');
const Signature = require('./deciphers/Signature');
class Innertube {
#oauth;
#player;
#actions;
#retry_count;
/**
* ```js
* const Innertube = require('youtubei.js');
* const youtube = await new Innertube();
* ```
*
* @param {object} [config]
* @param {string} [config.gl]
* @param {string} [config.cookie]
* @param {boolean} [config.debug]
*
* @returns {Innertube}
* @constructor
*/
constructor(config) {
this.config = config || {};
this.#retry_count = 0;
return this.#init();
}
async #init() {
const session = await new SessionBuilder(this.config).build();
this.key = session.key;
this.version = session.api_version;
this.context = session.context;
this.logged_in = false;
this.player_url = session.player.url;
this.sts = session.player.sts;
this.#player = session.player;
/**
* @fires Innertube#auth - fired when signing in to an account.
* @fires Innertube#update-credentials - fired when the access token is no longer valid.
* @type {EventEmitter}
*/
this.ev = new EventEmitter();
this.#oauth = new OAuth(this.ev);
if (this.config.cookie) {
this.auth_apisid = Utils.getStringBetweenStrings(this.config.cookie, 'PAPISID=', ';');
this.auth_apisid = Utils.generateSidAuth(this.auth_apisid);
}
this.request = new Request(this);
this.actions = new Actions(this);
this.#initMethods();
return this;
}
#initMethods() {
this.account = {
info: () => this.getAccountInfo(),
getTimeWatched: () => { /* TODO: Implement this */ },
settings: {
notifications: {
/**
* Notify about activity from the channels you're subscribed to.
*
* @param {boolean} new_value
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
setSubscriptions: (new_value) => this.#setSetting(Constants.ACCOUNT_SETTINGS.SUBSCRIPTIONS, 'SPaccount_notifications', new_value),
/**
* Recommended content notifications.
*
* @param {boolean} new_value
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
setRecommendedVideos: (new_value) => this.#setSetting(Constants.ACCOUNT_SETTINGS.RECOMMENDED_VIDEOS, 'SPaccount_notifications', new_value),
/**
* Notify about activity on your channel.
*
* @param {boolean} new_value
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
setChannelActivity: (new_value) => this.#setSetting(Constants.ACCOUNT_SETTINGS.CHANNEL_ACTIVITY, 'SPaccount_notifications', new_value),
/**
* Notify about replies to your comments.
*
* @param {boolean} new_value
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
setCommentReplies: (new_value) => this.#setSetting(Constants.ACCOUNT_SETTINGS.COMMENT_REPLIES, 'SPaccount_notifications', new_value),
/**
* Notify when others mention your channel.
*
* @param {boolean} new_value
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
setMentions: (new_value) => this.#setSetting(Constants.ACCOUNT_SETTINGS.USER_MENTION, 'SPaccount_notifications', new_value),
/**
* Notify when others share your content on their channels.
*
* @param {boolean} new_value
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
setSharedContent: (new_value) => this.#setSetting(Constants.ACCOUNT_SETTINGS.SHARED_CONTENT, 'SPaccount_notifications', new_value)
},
privacy: {
/**
* If set to true, your subscriptions won't be visible to others.
*
* @param {boolean} new_value
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
setSubscriptionsPrivate: (new_value) => this.#setSetting(Constants.ACCOUNT_SETTINGS.SUBSCRIPTIONS_PRIVACY, 'SPaccount_privacy', new_value),
/**
* If set to true, saved playlists won't appear on your channel.
*
* @param {boolean} new_value
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
setSavedPlaylistsPrivate: (new_value) => this.#setSetting(Constants.ACCOUNT_SETTINGS.PLAYLISTS_PRIVACY, 'SPaccount_privacy', new_value)
}
}
}
this.interact = {
/**
* Likes a given video.
*
* @param {string} video_id
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
like: (video_id) => this.actions.engage('like/like', { video_id }),
/**
* Diskes a given video.
*
* @param {string} video_id
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
dislike: (video_id) => this.actions.engage('like/dislike', { video_id }),
/**
* Removes a like/dislike.
*
* @param {string} video_id
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
removeLike: (video_id) => this.actions.engage('like/removelike', { video_id }),
/**
* Posts a comment on a given video.
*
* @param {string} video_id
* @param {string} text
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
comment: (video_id, text) => this.actions.engage('comment/create_comment', { video_id, text }),
/**
* Translates a given text using YouTube's comment translate feature.
*
* @param {string} text
* @param {string} target_language
* @param {object} [args] - optional arguments
* @param {string} [args.video_id]
* @param {string} [args.comment_id]
*
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
translate: async (text, target_language, args = {}) => {
const response = await this.actions.engage('comment/perform_comment_action', {
text,
video_id: args.video_id,
comment_id: args.comment_id,
target_language: target_language,
comment_action: 'translate'
});
const translated_content = Utils.findNode(response.data, 'frameworkUpdates', 'content', 7, false);
return {
success: response.success,
status_code: response.status_code,
translated_content: translated_content.content
}
},
/**
* Subscribes to a given channel.
*
* @param {string} channel_id
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
subscribe: (channel_id) => this.actions.engage('subscription/subscribe', { channel_id }),
/**
* Unsubscribes from a given channel.
*
* @param {string} channel_id
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
unsubscribe: (channel_id) => this.actions.engage('subscription/unsubscribe', { channel_id }),
/**
* Changes notification preferences for a given channel.
* Only works with channels you are subscribed to.
*
* @param {string} channel_id
* @param {string} type PERSONALIZED | ALL | NONE
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
setNotificationPreferences: (channel_id, type) => this.actions.notifications('modify_channel_preference', { channel_id, pref: type || 'NONE' }),
};
this.playlist = {
/**
* Creates a playlist.
*
* @param {string} title
* @param {Array.<string>} video_ids
*
* @returns {Promise.<{ success: boolean; status_code: string; playlist_id: string; }>}
*/
create: async (title, video_ids) => {
const response = await this.actions.playlist('playlist/create', { title, ids: video_ids });
if (!response.success) return response;
return {
success: true,
status_code: response.status_code,
playlist_id: response.data.playlistId
}
},
/**
* Deletes a given playlist.
*
* @param {string} playlist_id
* @returns {Promise.<{ success: boolean; status_code: string; playlist_id: string; }>}
*/
delete: async (playlist_id) => {
const response = await this.actions.playlist('playlist/delete', { playlist_id });
if (!response.success) return response;
return {
success: true,
status_code: response.status_code,
playlist_id
}
},
/**
* Adds an array of videos to a given playlist.
*
* @param {string} playlist_id
* @param {Array.<string>} video_ids
* @returns {Promise.<{ success: boolean; status_code: string; playlist_id: string; }>}
*/
addVideos: async (playlist_id, video_ids) => {
const response = await this.actions.playlist('browse/edit_playlist', {
action: 'ACTION_ADD_VIDEO',
playlist_id,
ids: video_ids
});
if (!response.success) return response;
return {
success: true,
status_code: response.status_code,
playlist_id
}
},
/**
* Removes videos from a given playlist.
*
* @param {string} playlist_id
* @param {Array.<string>} video_ids
* @returns {Promise.<{ success: boolean; status_code: string; playlist_id: string; }>}
*/
removeVideos: async (playlist_id, video_ids) => {
const plinfo = await this.actions.browse(`VL${playlist_id}`);
const list = Utils.findNode(plinfo.data, 'contents', 'contents', 13, false);
if (!list.isEditable) throw new Utils.InnertubeError('This playlist cannot be edited.', playlist_id);
const videos = list.contents.filter((item) => video_ids.includes(item.playlistVideoRenderer.videoId));
const set_video_ids = videos.map((video) => video.playlistVideoRenderer.setVideoId);
const response = await this.actions.playlist('browse/edit_playlist', {
action: 'ACTION_REMOVE_VIDEO',
playlist_id,
ids: set_video_ids
});
if (!response.success) return response;
return {
success: true,
status_code: response.status_code,
playlist_id
}
}
};
}
/**
* Internal method to perform changes on an account's settings.
*
* @param {string} setting_id
* @param {string} type
* @param {string} new_value
* @returns {Promise.<{ success: boolean; status_code: string; }>}
*/
async #setSetting(setting_id, type, new_value) {
const response = await this.actions.browse(type);
if (!response.success) return response;
const contents = ({
account_notifications: () => Utils.findNode(response.data, 'contents', 'Your preferences', 13, false).options,
account_privacy: () => Utils.findNode(response.data, 'contents', 'settingsSwitchRenderer', 13, false).options
})[type.trim()]();
const option = contents.find((option) => option.settingsSwitchRenderer.enableServiceEndpoint.setSettingEndpoint.settingItemIdForClient == setting_id);
const setting_item_id = option.settingsSwitchRenderer.enableServiceEndpoint.setSettingEndpoint.settingItemId;
const set_setting = await this.actions.account('account/set_setting', { new_value: type == 'account_privacy' ? !new_value : new_value, setting_item_id });
return {
success: set_setting.success,
status_code: set_setting.status_code,
}
}
/**
* Signs-in to a google account.
*
* @param {object} auth_info
* @param {string} auth_info.access_token - Token used to sign in.
* @param {string} auth_info.refresh_token - Token used to get a new access token.
* @param {Date} auth_info.expires - Access token's expiration date, which is usually 24hrs-ish
* @returns {Promise.<void>}
*/
signIn(auth_info = {}) {
return new Promise(async (resolve) => {
this.#oauth.init(auth_info);
if (this.#oauth.isValidAuthInfo()) {
await this.#oauth.checkTokenValidity();
this.#updateCredentials();
return resolve();
}
this.ev.on('auth', (data) => {
if (data.status === 'SUCCESS') {
this.#updateCredentials();
resolve();
}
});
});
}
#updateCredentials() {
this.access_token = this.#oauth.getAccessToken();
this.refresh_token = this.#oauth.getRefreshToken();
this.logged_in = true;
}
/**
* Signs out of an account.
* @returns {Promise.<{ success: boolean; status_code: number }>}
*/
async signOut() {
if (!this.logged_in) throw new Utils.InnertubeError('You are not signed in');
const response = await this.#oauth.revokeAccessToken();
response.success && (this.logged_in = false);
return response;
}
/**
* Retrieves account details.
* @returns {Promise.<{ name: string; photo: Array<object>; country: string; language: string; }>}
*/
async getAccountInfo() {
const response = await this.actions.account('account/account_menu');
if (!response.success) throw new Utils.InnertubeError('Could not get account info', response);
const menu = Utils.findNode(response, 'actions', 'multiPageMenuRenderer', 6, false);
return {
name: menu.header.activeAccountHeaderRenderer.accountName.simpleText,
photo: menu.header.activeAccountHeaderRenderer.accountPhoto.thumbnails,
country: menu.sections[1].multiPageMenuSectionRenderer.items[2].compactLinkRenderer.subtitle.simpleText,
language: menu.sections[1].multiPageMenuSectionRenderer.items[1].compactLinkRenderer.subtitle.simpleText
}
}
/**
* Searches on YouTube.
*
* @param {string} query - search query.
* @param {object} options - search options.
* @param {string} options.client - client used to perform the search, can be: `YTMUSIC` or `YOUTUBE`.
* @param {string} options.period - filter videos uploaded within a period, can be: any | hour | day | week | month | year
* @param {string} options.order - filter results by order, can be: relevance | rating | age | views
* @param {string} options.duration - filter video results by duration, can be: any | short | long
*
* @returns {Promise.<{ query: string; corrected_query: string; estimated_results: number; videos: [] } |
* { results: { songs: []; videos: []; albums: []; community_playlists: [] } }>}
*/
async search(query, options = { client: 'YOUTUBE', period: 'any', order: 'relevance', duration: 'any' }) {
const response = await this.actions.search({ query, options, is_ytm: options.client == 'YTMUSIC' });
const results = new Parser(this, response.data, {
query,
client: options.client,
data_type: 'SEARCH'
}).parse();
return results;
}
/**
* Retrieves search suggestions.
*
* @param {string} input - the search query.
* @param {object} [options] - search options.
* @param {string} [options.client='YOUTUBE'] - client used to retrieve search suggestions, can be: `YOUTUBE` or `YTMUSIC`.
*
* @returns {Promise.<[{ text: string; bold_text: string }]>}
*/
async getSearchSuggestions(input, options = { client: 'YOUTUBE' }) {
const response = await this.actions.getSearchSuggestions(options.client, input);
if (!response.success) throw new Utils.InnertubeError('Could not get search suggestions', response);
if (options.client === 'YTMUSIC' && !response.data.contents) return [];
const suggestions = new Parser(this, response.data, {
input,
client: options.client,
data_type: 'SEARCH_SUGGESTIONS'
}).parse();
return suggestions;
}
/**
* Retrieves video info.
*
* @param {string} video_id - video id
* @return {Promise.<{ title: string; description: string; thumbnail: []; metadata: object }>}
*/
async getDetails(video_id) {
if (!video_id) throw new Utils.MissingParamError('Video id is missing');
const response = await this.actions.getVideoInfo(video_id);
const continuation = await this.actions.next({ video_id });
continuation.success && (response.continuation = continuation.data);
const details = new Parser(this, response, {
client: 'YOUTUBE',
data_type: 'VIDEO_INFO'
}).parse();
const livechat_ctoken = continuation.data.contents?.twoColumnWatchNextResults
?.conversationBar?.liveChatRenderer?.continuations?.find((continuation) => continuation.reloadContinuationData)
.reloadContinuationData.continuation;
details.like = () => this.actions.engage('like/like', { video_id });
details.dislike = () => this.actions.engage('like/dislike', { video_id });
details.removeLike = () => this.actions.engage('like/removelike', { video_id });
details.subscribe = () => this.actions.engage('subscription/subscribe', { channel_id: details.metadata.channel_id });
details.unsubscribe = () => this.actions.engage('subscription/unsubscribe', { channel_id: details.metadata.channel_id });
details.comment = (text) => this.actions.engage('comment/create_comment', { video_id, text });
details.getComments = (sort_by) => this.getComments(video_id, sort_by);
details.getLivechat = () => new Livechat(this, livechat_ctoken, details.metadata.channel_id, video_id);
details.setNotificationPreferences = (type) => this.actions.notifications('modify_channel_preference', { channel_id: details.metadata.channel_id, pref: type || 'NONE' });
return details;
}
/**
* Retrieves comments for a video.
*
* @param {string} video_id - video id
* @param {string} [sort_by] - can be: `TOP_COMMENTS` or `NEWEST_FIRST`.
* @return {Promise.<{ page_count: number; comment_count: number; items: []; }>}
*/
async getComments(video_id, sort_by) {
const payload = Proto.encodeCommentsSectionParams(video_id, {
sort_by: sort_by || 'TOP_COMMENTS'
});
const response = await this.actions.next({ ctoken: payload });
if (!response.success) throw new Utils.InnertubeError('Could not retrieve comments', response);
const comments = new Parser(this, response.data, {
video_id,
client: 'YOUTUBE',
data_type: 'COMMENTS'
}).parse();
return comments;
}
/**
* Retrieves contents for a given channel. (WIP)
*
* @param {string} id - channel id
* @return {Promise.<{ title: string; description: string; metadata: object; content: object }>}
*/
async getChannel(id) {
const response = await this.actions.browse(id);
if (!response.success) throw new Utils.InnertubeError('Could not retrieve channel info.', response);
const channel_info = new Parser(this, response.data, {
client: 'YOUTUBE',
data_type: 'CHANNEL'
}).parse();
return channel_info;
}
/**
* Retrieves watch history.
* @returns {Promise.<{ items: [{ date: string; videos: [] }] }>}
*/
async getHistory() {
const response = await this.actions.browse('FEhistory');
if (!response.success) throw new Utils.InnertubeError('Could not retrieve watch history', response);
const history = new Parser(this, response, {
client: 'YOUTUBE',
data_type: 'HISTORY'
}).parse();
return history;
}
/**
* Retrieves YouTube's home feed (aka recommendations).
* @returns {Promise.<{ videos: [{ id: string; title: string; description: string; channel: string; metadata: object }] }>}
*/
async getHomeFeed() {
const response = await this.actions.browse('FEwhat_to_watch');
if (!response.success) throw new Utils.InnertubeError('Could not retrieve home feed', response);
const homefeed = new Parser(this, response, {
client: 'YOUTUBE',
data_type: 'HOMEFEED'
}).parse();
return homefeed;
}
/**
* Retrieves trending content.
*
* @returns {Promise.<{ now: { content: [{ title: string; videos: []; }] };
* music: { getVideos: Promise.<Array>; }; gaming: { getVideos: Promise.<Array>; };
* gaming: { getVideos: Promise.<Array>; }; }>}
*/
async getTrending() {
const response = await this.actions.browse('FEtrending');
if (!response.success) throw new Utils.InnertubeError('Could not retrieve trending content', response);
const trending = new Parser(this, response, {
client: 'YOUTUBE',
data_type: 'TRENDING'
}).parse();
return trending;
}
/**
* WIP
*/
async getLibrary() {
const response = await this.actions.browse('FElibrary');
if (!response.success) throw new Utils.InnertubeError('Could not retrieve library', response);
const library = new Parser(this, response.data, {
client: 'YOUTUBE',
data_type: 'LIBRARY'
}).parse();
return library;
}
/**
* Retrieves subscriptions feed.
* @returns {Promise.<{ items: [{ date: string; videos: [] }] }>}
*/
async getSubscriptionsFeed() {
const response = this.actions.browse('FEsubscriptions');
if (!response.success) throw new Utils.InnertubeError('Could not retrieve subscriptions feed', response);
const subsfeed = new Parser(this, response, {
client: 'YOUTUBE',
data_type: 'SUBSFEED'
}).parse();
return subsfeed;
}
/**
* Retrieves your notifications.
* @returns {Promise.<{ items: [{ title: string; sent_time: string; channel_name: string; channel_thumbnail: {}; video_thumbnail: {}; video_url: string; read: boolean; notification_id: string }] }>}
*/
async getNotifications() {
const response = await this.actions.notifications('get_notification_menu');
if (!response.success) throw new Utils.InnertubeError('Could not fetch notifications', response);
const notifications = new Parser(this, response.data, {
client: 'YOUTUBE',
data_type: 'NOTIFICATIONS'
}).parse();
return notifications;
}
/**
* Retrieves unseen notifications count.
* @returns {Promise.<number>}
*/
async getUnseenNotificationsCount() {
const response = await this.actions.notifications('get_unseen_count');
if (!response.success) throw new Utils.InnertubeError('Could not get unseen notifications count', response);
return response.data.unseenCount;
}
/**
* Retrieves lyrics for a given song if available.
*
* @param {string} video_id
* @returns {Promise.<string>}
*/
async getLyrics(video_id) {
const continuation = await this.actions.next({ video_id: video_id, is_ytm: true });
if (!continuation.success) throw new Utils.InnertubeError('Could not retrieve lyrics', continuation);
const lyrics_tab = Utils.findNode(continuation, 'contents', 'Lyrics', 8, false);
const response = await this.actions.browse(lyrics_tab.endpoint?.browseEndpoint.browseId, { is_ytm: true });
if (!response.success || !response.data?.contents?.sectionListRenderer) throw new Utils.UnavailableContentError('Lyrics not available', { video_id });
const lyrics = Utils.findNode(response.data, 'contents', 'runs', 6, false);
return lyrics.runs[0].text;
}
/**
* Retrieves a given playlist.
*
* @param {string} playlist_id - playlist id.
* @param {object} options - { client: YOUTUBE | YTMUSIC }
* @param {string} options.client - client used to parse the playlist, can be: `YTMUSIC` | `YOUTUBE`
* @returns {Promise.<
* { title: string; description: string; total_items: string; last_updated: string; views: string; items: [] } |
* { title: string; description: string; total_items: number; duration: string; year: string; items: [] }>}
*/
async getPlaylist(playlist_id, options = { client: 'YOUTUBE' }) {
const response = await this.actions.browse(`VL${playlist_id}`, { is_ytm: options.client == 'YTMUSIC' });
if (!response.success) throw new Utils.InnertubeError('Could not get playlist', response);
const playlist = new Parser(this, response.data, {
client: options.client,
data_type: 'PLAYLIST'
}).parse();
return playlist;
}
/**
* Internal method to process and filter formats.
*
* @param {object} options
* @param {object} video_data
* @returns {object.<{ selected_format: {}; formats: [] }>}
*/
#chooseFormat(options, video_data) {
let formats = [];
formats = formats
.concat(video_data.streamingData.formats || [])
.concat(video_data.streamingData.adaptiveFormats || []);
formats.forEach((format) => {
format.url = format.url || format.signatureCipher || format.cipher;
if (format.signatureCipher || format.cipher) {
format.url = new Signature(format.url, this.#player.signature_decipher).decipher();
}
const url_components = new URL(format.url);
url_components.searchParams.set('cver', this.context.client.clientVersion);
url_components.searchParams.set('ratebypass', 'yes');
if (url_components.searchParams.get('n')) {
url_components.searchParams.set('n', new NToken(this.#player.ntoken_decipher, url_components.searchParams.get('n')).transform());
}
format.url = url_components.toString();
format.has_audio = !!format.audioBitrate || !!format.audioQuality;
format.has_video = !!format.qualityLabel;
delete format.cipher;
delete format.signatureCipher;
});
let format;
let bitrates;
let filtered_formats;
filtered_formats = ({
'video': formats.filter((format) => format.has_video && !format.has_audio),
'audio': formats.filter((format) => format.has_audio && !format.has_video),
'videoandaudio': formats.filter((format) => format.has_video && format.has_audio)
})[options.type] || formats.filter((format) => format.has_video && format.has_audio);
let streams;
options.type != 'audio' &&
(streams = filtered_formats.filter((format) => format.mimeType.includes(options.format || 'mp4') && format.qualityLabel == options.quality)) ||
(streams = filtered_formats.filter((format) => format.mimeType.includes(options.format || 'mp4')));
!streams || !streams.length &&
(streams = filtered_formats.filter((format) => format.quality == 'medium'));
bitrates = streams.map((format) => format.bitrate);
format = streams.filter((format) => format.bitrate === Math.max(...bitrates))[0];
return { selected_format: format, formats };
}
/**
* An alternative to {@link download}.
* Returns deciphered streaming data.
*
* @param {string} id - video id
* @param {object} options - download options.
* @param {string} options.quality - video quality; 360p, 720p, 1080p, etc...
* @param {string} options.type - download type, can be: video, audio or videoandaudio
* @param {string} options.format - file format
*
* @returns {Promise.<{ selected_format: {}; formats: [] }>}
*/
async getStreamingData(id, options = {}) {
options.quality = options.quality || '360p';
options.type = options.type || 'videoandaudio';
options.format = options.format || 'mp4';
const data = await this.actions.getVideoInfo(id);
const streaming_data = this.#chooseFormat(options, data);
if (!streaming_data.selected_format)
throw new Utils.NoStreamingDataError('Could not find any suitable format.', { id, options });
return streaming_data;
}
/**
* Downloads a given video. If you only need the direct download link take a look at {@link getStreamingData}.
*
* @param {string} id - video id
* @param {object} options - download options.
* @param {string} [options.quality] - video quality; 360p, 720p, 1080p, etc...
* @param {string} [options.type] - download type, can be: video, audio or videoandaudio
* @param {string} [options.format] - file format
*
* @return {Stream.PassThrough}
*/
download(id, options = {}) {
if (!id) throw new Utils.MissingParamError('Video id is missing');
options.quality = options.quality || '360p';
options.type = options.type || 'videoandaudio';
options.format = options.format || 'mp4';
let cancel;
let cancelled = false;
const cpn = Utils.generateRandomString(16);
const stream = new Stream.PassThrough();
this.actions.getVideoInfo(id, cpn).then(async (video_data) => {
if (video_data.playabilityStatus.status === 'LOGIN_REQUIRED')
return stream.emit('error', { message: 'You must login to download age-restricted videos.', error_type: 'LOGIN_REQUIRED', playability_status: video_data.playabilityStatus.status });
if (!video_data.streamingData)
return stream.emit('error', { message: 'Streaming data not available.', error_type: 'NO_STREAMING_DATA', playability_status: video_data.playabilityStatus.status });
const { selected_format: format, formats } = this.#chooseFormat(options, video_data);
if (!format)
return stream.emit('error', { message: 'Could not find any suitable format.', type: 'FORMAT_UNAVAILABLE' });
const video_details = new Parser(this, video_data, { client: 'YOUTUBE', data_type: 'VIDEO_INFO' }).parse();
stream.emit('info', { video_details, selected_format: format, formats });
if (options.type == 'videoandaudio' && !options.range) {
const response = await Axios.get(`${format.url}&cpn=${cpn}`, {
responseType: 'stream',
cancelToken: new CancelToken(function executor(c) { cancel = c; }),
headers: Constants.STREAM_HEADERS
}).catch((error) => error);
if (response instanceof Error) {
stream.emit('error', { message: response.message, type: 'REQUEST_FAILED' });
return stream;
} else {
stream.emit('start');
}
let downloaded_size = 0;
response.data.on('data', (chunk) => {
downloaded_size += chunk.length;
let size = (response.headers['content-length'] / 1024 / 1024).toFixed(2);
let percentage = Math.floor((downloaded_size / response.headers['content-length']) * 100);
stream.emit('progress', {
size,
percentage,
chunk_size: chunk.length,
downloaded_size: (downloaded_size / 1024 / 1024).toFixed(2),
raw_data: {
chunk_size: chunk.length,
downloaded: downloaded_size,
size: response.headers['content-length']
}
});
});
response.data.on('error', (err) => {
cancelled &&
stream.emit('error', { message: 'The download was cancelled.', type: 'DOWNLOAD_CANCELLED' }) ||
stream.emit('error', { message: err.message, type: 'DOWNLOAD_ABORTED' });
});
response.data.pipe(stream, { end: true });
} else {
const chunk_size = 1048576 * 10; // 10MB
let chunk_start = (options.range && options.range.start || 0);
let chunk_end = (options.range && options.range.end || chunk_size);
let downloaded_size = 0;
let must_end = false;
stream.emit('start');
const downloadChunk = async () => {
(chunk_end >= format.contentLength || options.range) && (must_end = true);
options.range && (format.contentLength = options.range.end);
const response = await Axios.get(`${format.url}&cpn=${cpn}&range=${chunk_start}-${chunk_end || ''}`, {
responseType: 'stream',
cancelToken: new CancelToken(function executor(c) { cancel = c; }),
headers: Constants.STREAM_HEADERS
}).catch((error) => error);
if (response instanceof Error) {
stream.emit('error', { message: response.message, type: 'REQUEST_FAILED' });
return stream;
}
response.data.on('data', (chunk) => {
downloaded_size += chunk.length;
let size = (format.contentLength / 1024 / 1024).toFixed(2);
let percentage = Math.floor((downloaded_size / format.contentLength) * 100);
stream.emit('progress', {
size,
percentage,
chunk_size: chunk.length,
downloaded_size: (downloaded_size / 1024 / 1024).toFixed(2),
raw_data: {
chunk_size: chunk.length,
downloaded: downloaded_size,
size: response.headers['content-length']
}
});
});
response.data.on('error', (err) => {
cancelled &&
stream.emit('error', { message: 'The download was cancelled.', type: 'DOWNLOAD_CANCELLED' }) ||
stream.emit('error', { message: err.message, type: 'DOWNLOAD_ABORTED' });
});
response.data.on('end', () => {
if (!must_end && !options.range) {
chunk_start = chunk_end + 1;
chunk_end += chunk_size;
downloadChunk();
}
});
response.data.pipe(stream, { end: must_end });
};
downloadChunk();
}
});
stream.cancel = () => {
cancelled = true;
cancel();
};
return stream;
}
}
module.exports = Innertube;