import mongoose from "mongoose"; import async from "async"; import config from "config"; import * as rax from "retry-axios"; import axios from "axios"; import CoreClass from "../core"; class RateLimitter { /** * Constructor * * @param {number} timeBetween - The time between each allowed YouTube request */ constructor(timeBetween) { this.dateStarted = Date.now(); this.timeBetween = timeBetween; } /** * Returns a promise that resolves whenever the ratelimit of a YouTube request is done * * @returns {Promise} - promise that gets resolved when the rate limit allows it */ continue() { return new Promise(resolve => { if (Date.now() - this.dateStarted >= this.timeBetween) resolve(); else setTimeout(resolve, this.dateStarted + this.timeBetween - Date.now()); }); } /** * Restart the rate limit timer */ restart() { this.dateStarted = Date.now(); } } let YouTubeModule; let CacheModule; let DBModule; let MediaModule; let SongsModule; let StationsModule; let PlaylistsModule; let WSModule; const isQuotaExceeded = apiCalls => { const reversedApiCalls = apiCalls.slice().reverse(); const quotas = config.get("apis.youtube.quotas").slice(); const sortedQuotas = quotas.sort((a, b) => a.limit > b.limit); let quotaExceeded = false; sortedQuotas.forEach(quota => { let quotaUsed = 0; let dateCutoff = null; if (quota.type === "QUERIES_PER_MINUTE") dateCutoff = new Date() - 1000 * 60; else if (quota.type === "QUERIES_PER_100_SECONDS") dateCutoff = new Date() - 1000 * 100; else if (quota.type === "QUERIES_PER_DAY") { // Quota resets at midnight PT, this is my best guess to convert the current date to the last midnight PT dateCutoff = new Date(); dateCutoff.setUTCMilliseconds(0); dateCutoff.setUTCSeconds(0); dateCutoff.setUTCMinutes(0); dateCutoff.setUTCHours(dateCutoff.getUTCHours() - 7); dateCutoff.setUTCHours(0); } reversedApiCalls.forEach(apiCall => { if (apiCall.date >= dateCutoff) quotaUsed += apiCall.quotaCost; }); if (quotaUsed >= quota.limit) { quotaExceeded = true; } }); return quotaExceeded; }; class _YouTubeModule extends CoreClass { // eslint-disable-next-line require-jsdoc constructor() { super("youtube", { concurrency: 10, priorities: { GET_PLAYLIST: 11 } }); YouTubeModule = this; } /** * Initialises the activities module * * @returns {Promise} - returns promise (reject, resolve) */ async initialize() { CacheModule = this.moduleManager.modules.cache; DBModule = this.moduleManager.modules.db; MediaModule = this.moduleManager.modules.media; SongsModule = this.moduleManager.modules.songs; StationsModule = this.moduleManager.modules.stations; PlaylistsModule = this.moduleManager.modules.playlists; WSModule = this.moduleManager.modules.ws; this.youtubeApiRequestModel = this.YoutubeApiRequestModel = await DBModule.runJob("GET_MODEL", { modelName: "youtubeApiRequest" }); this.youtubeVideoModel = this.YoutubeVideoModel = await DBModule.runJob("GET_MODEL", { modelName: "youtubeVideo" }); return new Promise(resolve => { CacheModule.runJob("SUB", { channel: "youtube.removeYoutubeApiRequest", cb: requestId => { WSModule.runJob("EMIT_TO_ROOM", { room: `view-api-request.${requestId}`, args: ["event:youtubeApiRequest.removed"] }); WSModule.runJob("EMIT_TO_ROOM", { room: "admin.youtube", args: ["event:admin.youtubeApiRequest.removed", { data: { requestId } }] }); } }); CacheModule.runJob("SUB", { channel: "youtube.removeVideos", cb: videoIds => { const videos = Array.isArray(videoIds) ? videoIds : [videoIds]; videos.forEach(videoId => { WSModule.runJob("EMIT_TO_ROOM", { room: `view-youtube-video.${videoId}`, args: ["event:youtubeVideo.removed"] }); WSModule.runJob("EMIT_TO_ROOM", { room: "admin.youtubeVideos", args: ["event:admin.youtubeVideo.removed", { data: { videoId } }] }); WSModule.runJob("EMIT_TO_ROOMS", { rooms: ["import-album", "edit-songs"], args: ["event:admin.youtubeVideo.removed", { videoId }] }); }); } }); this.rateLimiter = new RateLimitter(config.get("apis.youtube.rateLimit")); this.requestTimeout = config.get("apis.youtube.requestTimeout"); this.axios = axios.create(); this.axios.defaults.raxConfig = { instance: this.axios, retry: config.get("apis.youtube.retryAmount"), noResponseRetries: config.get("apis.youtube.retryAmount") }; rax.attach(this.axios); this.youtubeApiRequestModel .find( { date: { $gte: new Date() - 2 * 24 * 60 * 60 * 1000 } }, { date: true, quotaCost: true, _id: false } ) .sort({ date: 1 }) .exec((err, youtubeApiRequests) => { if (err) console.log("Couldn't load YouTube API requests."); else { this.apiCalls = youtubeApiRequests; resolve(); } }); }); } /** * Fetches a list of songs from Youtube's API * * @param {object} payload - object that contains the payload * @param {string} payload.query - the query we'll pass to youtubes api * @param {string} payload.pageToken - (optional) if this exists, will search search youtube for a specific page reference * @returns {Promise} - returns promise (reject, resolve) */ SEARCH(payload) { const params = { part: "snippet", q: payload.query, type: "video", maxResults: 10 }; if (payload.pageToken) params.pageToken = payload.pageToken; return new Promise((resolve, reject) => { YouTubeModule.runJob( "API_SEARCH", { params }, this ) .then(({ response }) => { const { data } = response; return resolve(data); }) .catch(err => { YouTubeModule.log("ERROR", "SEARCH", `${err.message}`); return reject(new Error("An error has occured. Please try again later.")); }); }); } /** * Returns details about the YouTube quota usage * * @param {object} payload - object that contains the payload * @param {string} payload.fromDate - date to select requests up to * @returns {Promise} - returns promise (reject, resolve) */ GET_QUOTA_STATUS(payload) { return new Promise((resolve, reject) => { const fromDate = payload.fromDate ? new Date(payload.fromDate) : new Date(); YouTubeModule.youtubeApiRequestModel .find( { date: { $gte: fromDate - 2 * 24 * 60 * 60 * 1000, $lte: fromDate } }, { date: true, quotaCost: true, _id: false } ) .sort({ date: 1 }) .exec((err, youtubeApiRequests) => { if (err) reject(new Error("Couldn't load YouTube API requests.")); else { const reversedApiCalls = youtubeApiRequests.slice().reverse(); const quotas = config.get("apis.youtube.quotas").slice(); const sortedQuotas = quotas.sort((a, b) => a.limit > b.limit); const status = {}; sortedQuotas.forEach(quota => { status[quota.type] = { title: quota.title, quotaUsed: 0, limit: quota.limit, quotaExceeded: false }; let dateCutoff = null; if (quota.type === "QUERIES_PER_MINUTE") dateCutoff = new Date(fromDate) - 1000 * 60; else if (quota.type === "QUERIES_PER_100_SECONDS") dateCutoff = new Date(fromDate) - 1000 * 100; else if (quota.type === "QUERIES_PER_DAY") { // Quota resets at midnight PT, this is my best guess to convert the current date to the last midnight PT dateCutoff = new Date(fromDate); dateCutoff.setUTCMilliseconds(0); dateCutoff.setUTCSeconds(0); dateCutoff.setUTCMinutes(0); dateCutoff.setUTCHours(dateCutoff.getUTCHours() - 7); dateCutoff.setUTCHours(0); } reversedApiCalls.forEach(apiCall => { if (apiCall.date >= dateCutoff) status[quota.type].quotaUsed += apiCall.quotaCost; }); if (status[quota.type].quotaUsed >= quota.limit && !status[quota.type].quotaExceeded) status[quota.type].quotaExceeded = true; }); resolve({ status }); } }); }); } /** * Returns YouTube quota chart data * * @param {object} payload - object that contains the payload * @param {string} payload.timePeriod - either hours or days * @param {string} payload.startDate - beginning date * @param {string} payload.endDate - end date * @param {string} payload.dataType - either usage or count * @returns {Promise} - returns promise (reject, resolve) */ GET_QUOTA_CHART_DATA(payload) { return new Promise((resolve, reject) => { const { timePeriod, startDate, endDate, dataType } = payload; // const timePeriod = "hours"; // const startDate = new Date("2022-05-20 00:00:00"); // const endDate = new Date("2022-05-21 00:00:00"); // const timePeriod = "days"; // const startDate = new Date("2022-05-15 00:00:00"); // const endDate = new Date("2022-05-21 00:00:00"); // const endDate = new Date("2022-05-30 00:00:00"); // const dataType = "usage"; // const dataType = "count"; async.waterfall( [ next => { let timeRanges = []; if (timePeriod === "hours") { startDate.setMinutes(0, 0, 0); endDate.setMinutes(0, 0, 0); const lastDate = new Date(startDate); do { const newDate = new Date(lastDate.getTime() + 1000 * 60 * 60); timeRanges.push({ startDate: new Date(lastDate), endDate: newDate }); lastDate.setTime(newDate.getTime()); } while (lastDate.getTime() < endDate.getTime()); if (timeRanges.length === 0 || timeRanges.length > 24) return next("No valid time ranges specified."); timeRanges = timeRanges.map(timeRange => ({ ...timeRange, label: `${timeRange.startDate.getHours().toString().padStart(2, "0")}:00` })); } else if (timePeriod === "days") { startDate.setHours(0, 0, 0, 0); endDate.setHours(0, 0, 0, 0); const lastDate = new Date(startDate); do { const newDate = new Date(lastDate.getTime() + 1000 * 60 * 60 * 24); timeRanges.push({ startDate: new Date(lastDate), endDate: newDate }); lastDate.setTime(newDate.getTime()); } while (lastDate.getTime() < endDate.getTime()); if (timeRanges.length === 0 || timeRanges.length > 31) return next("No valid time ranges specified."); const days = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"]; if (timeRanges.length <= 7) timeRanges = timeRanges.map(timeRange => ({ ...timeRange, label: days[timeRange.startDate.getDay()] })); else timeRanges = timeRanges.map(timeRange => ({ ...timeRange, label: `${timeRange.startDate.getDate().toString().padStart(2, "0")}-${( timeRange.startDate.getMonth() + 1 ) .toString() .padStart(2, "0")}` })); } return next(null, timeRanges); }, (timeRanges, next) => { YouTubeModule.youtubeApiRequestModel .find({ date: { $gte: startDate, $lte: endDate } }) .sort({ date: 1 }) .exec((err, youtubeApiRequests) => { next(err, timeRanges, youtubeApiRequests); }); }, (timeRanges, youtubeApiRequests, next) => { const regex = /https:\/\/www\.googleapis\.com\/youtube\/v3\/(.+)/; const requestTypes = Object.fromEntries( youtubeApiRequests .map(youtubeApiRequest => regex.exec(youtubeApiRequest.url)[1]) .filter((requestType, index, array) => array.indexOf(requestType) === index) .map(requestType => [requestType, 0]) ); timeRanges = timeRanges.map(timeRange => ({ ...timeRange, data: { total: 0, ...requestTypes } })); youtubeApiRequests.forEach(youtubeApiRequest => { timeRanges.forEach(timeRange => { if ( timeRange.startDate <= youtubeApiRequest.date && timeRange.endDate >= youtubeApiRequest.date ) { const requestType = regex.exec(youtubeApiRequest.url)[1]; if (!timeRange.data[requestType]) timeRange.data[requestType] = 0; if (dataType === "usage") { timeRange.data[requestType] += youtubeApiRequest.quotaCost; timeRange.data.total += youtubeApiRequest.quotaCost; } else if (dataType === "count") { timeRange.data[requestType] += 1; timeRange.data.total += 1; } } }); }); next(null, timeRanges); }, (timeRanges, next) => { const chartData = {}; chartData.labels = timeRanges.map(timeRange => timeRange.label); const datasetTypes = Object.keys(timeRanges[0].data); const colors = { total: "rgb(2, 166, 242)", videos: "rgb(166, 2, 242)", search: "rgb(242, 2, 166)", channels: "rgb(2, 242, 166)", playlistItems: "rgb(242, 166, 2)" }; chartData.datasets = datasetTypes.map(datasetType => { let label; switch (datasetType) { case "total": label = "Total"; break; case "videos": label = "Videos"; break; case "search": label = "Search"; break; case "playlistItems": label = "Playlist Items"; break; default: label = datasetType; } return { label, borderColor: colors[datasetType], backgroundColor: colors[datasetType], data: timeRanges.map(timeRange => timeRange.data[datasetType]) }; }); next(null, chartData); } ], (err, chartData) => { if (err) reject(err); else resolve(chartData); } ); }); } /** * Gets the id of the channel upload playlist * * @param {object} payload - object that contains the payload * @param {string} payload.id - the id of the YouTube channel. Optional: can be left out if specifying a username. * @param {string} payload.username - the username of the YouTube channel. Only gets used if no id is specified. * @returns {Promise} - returns promise (reject, resolve) */ GET_CHANNEL_UPLOADS_PLAYLIST_ID(payload) { return new Promise((resolve, reject) => { const params = { part: "id,contentDetails" }; if (payload.id) params.id = payload.id; else params.forUsername = payload.username; YouTubeModule.runJob( "API_GET_CHANNELS", { params }, this ) .then(({ response }) => { const { data } = response; if (data.pageInfo.totalResults === 0) return reject(new Error("Channel not found.")); const playlistId = data.items[0].contentDetails.relatedPlaylists.uploads; return resolve({ playlistId }); }) .catch(err => { YouTubeModule.log("ERROR", "GET_CHANNEL_UPLOADS_PLAYLIST_ID", `${err.message}`); if (err.message === "Request failed with status code 404") { return reject(new Error("Channel not found. Is the channel public/unlisted?")); } return reject(new Error("An error has occured. Please try again later.")); }); }); } /** * Gets the id of the channel from the custom URL * * @param {object} payload - object that contains the payload * @param {string} payload.customUrl - the customUrl of the YouTube channel * @returns {Promise} - returns promise (reject, resolve) */ GET_CHANNEL_ID_FROM_CUSTOM_URL(payload) { return new Promise((resolve, reject) => { async.waterfall( [ next => { const params = { part: "snippet", type: "channel", maxResults: 50 }; params.q = payload.customUrl; YouTubeModule.runJob( "API_SEARCH", { params }, this ) .then(({ response }) => { const { data } = response; if (data.pageInfo.totalResults === 0) return next("Channel not found."); const channelIds = data.items.map(item => item.id.channelId); return next(null, channelIds); }) .catch(err => { next(err); }); }, (channelIds, next) => { const params = { part: "snippet", id: channelIds.join(","), maxResults: 50 }; YouTubeModule.runJob( "API_GET_CHANNELS", { params }, this ) .then(({ response }) => { const { data } = response; if (data.pageInfo.totalResults === 0) return next("Channel not found."); let channelId = null; data.items.forEach(item => { if ( item.snippet.customUrl && item.snippet.customUrl.toLowerCase() === payload.customUrl.toLowerCase() ) { channelId = item.id; } }); if (!channelId) return next("Channel not found."); return next(null, channelId); }) .catch(err => { next(err); }); } ], (err, channelId) => { if (err) { YouTubeModule.log("ERROR", "GET_CHANNEL_ID_FROM_CUSTOM_URL", `${err.message || err}`); if (err.message === "Request failed with status code 404") { return reject(new Error("Channel not found. Is the channel public/unlisted?")); } return reject(new Error("An error has occured. Please try again later.")); } return resolve({ channelId }); } ); }); } /** * Returns an array of songs taken from a YouTube playlist * * @param {object} payload - object that contains the payload * @param {boolean} payload.musicOnly - whether to return music videos or all videos in the playlist * @param {string} payload.url - the url of the YouTube playlist * @returns {Promise} - returns promise (reject, resolve) */ GET_PLAYLIST(payload) { return new Promise((resolve, reject) => { const regex = /[\\?&]list=([^&#]*)/; const splitQuery = regex.exec(payload.url); if (!splitQuery) { YouTubeModule.log("ERROR", "GET_PLAYLIST", "Invalid YouTube playlist URL query."); reject(new Error("Invalid playlist URL.")); return; } const playlistId = splitQuery[1]; async.waterfall( [ next => { let songs = []; let nextPageToken = ""; async.whilst( next => { YouTubeModule.log( "INFO", `Getting playlist progress for job (${this.toString()}): ${ songs.length } songs gotten so far. Is there a next page: ${nextPageToken !== undefined}.` ); next(null, nextPageToken !== undefined); }, next => { // Add 250ms delay between each job request setTimeout(() => { YouTubeModule.runJob("GET_PLAYLIST_PAGE", { playlistId, nextPageToken }, this) .then(response => { songs = songs.concat(response.songs); nextPageToken = response.nextPageToken; next(); }) .catch(err => next(err)); }, 250); }, err => next(err, songs) ); }, (songs, next) => next( null, songs.map(song => song.contentDetails.videoId) ), (songs, next) => { if (!payload.musicOnly) return next(true, { songs }); return YouTubeModule.runJob("FILTER_MUSIC_VIDEOS", { videoIds: songs.slice() }, this) .then(filteredSongs => next(null, { filteredSongs, songs })) .catch(next); } ], (err, response) => { if (err && err !== true) { YouTubeModule.log("ERROR", "GET_PLAYLIST", "Some error has occurred.", err.message); reject(new Error(err.message)); } else { resolve({ songs: response.filteredSongs ? response.filteredSongs.videoIds : response.songs }); } } ); }); } /** * Returns a a page from a YouTube playlist. Is used internally by GET_PLAYLIST and GET_CHANNEL. * * @param {object} payload - object that contains the payload * @param {boolean} payload.playlistId - the playlist id to get videos from * @param {boolean} payload.nextPageToken - the nextPageToken to use * @param {string} payload.url - the url of the YouTube playlist * @returns {Promise} - returns promise (reject, resolve) */ GET_PLAYLIST_PAGE(payload) { return new Promise((resolve, reject) => { const params = { part: "contentDetails", playlistId: payload.playlistId, maxResults: 50 }; if (payload.nextPageToken) params.pageToken = payload.nextPageToken; YouTubeModule.runJob( "API_GET_PLAYLIST_ITEMS", { params }, this ) .then(({ response }) => { const { data } = response; const songs = data.items; if (data.nextPageToken) return resolve({ nextPageToken: data.nextPageToken, songs }); return resolve({ songs }); }) .catch(err => { YouTubeModule.log("ERROR", "GET_PLAYLIST_PAGE", `${err.message}`); if (err.message === "Request failed with status code 404") { return reject(new Error("Playlist not found. Is the playlist public/unlisted?")); } return reject(new Error("An error has occured. Please try again later.")); }); }); } /** * Filters a list of YouTube videos so that they only contains videos with music. Is used internally by GET_PLAYLIST * * @param {object} payload - object that contains the payload * @param {Array} payload.videoIds - an array of YouTube videoIds to filter through * @param {Array} payload.page - the current page/set of video's to get, starting at 0. If left null, 0 is assumed. Will recurse. * @returns {Promise} - returns promise (reject, resolve) */ FILTER_MUSIC_VIDEOS(payload) { return new Promise((resolve, reject) => { const page = payload.page ? payload.page : 0; const videosPerPage = 50; const localVideoIds = payload.videoIds.splice(page * 50, videosPerPage); if (localVideoIds.length === 0) { resolve({ videoIds: [] }); return; } const params = { part: "topicDetails", id: localVideoIds.join(","), maxResults: videosPerPage }; YouTubeModule.runJob("API_GET_VIDEOS", { params }, this) .then(({ response }) => { const { data } = response; const videoIds = []; data.items.forEach(item => { const videoId = item.id; if (!item.topicDetails) return; if (item.topicDetails.topicCategories.indexOf("https://en.wikipedia.org/wiki/Music") !== -1) videoIds.push(videoId); }); return YouTubeModule.runJob( "FILTER_MUSIC_VIDEOS", { videoIds: payload.videoIds, page: page + 1 }, this ) .then(result => resolve({ videoIds: videoIds.concat(result.videoIds) })) .catch(err => reject(err)); }) .catch(err => { YouTubeModule.log("ERROR", "FILTER_MUSIC_VIDEOS", `${err.message}`); return reject(new Error("Failed to find playlist from YouTube")); }); }); } /** * Returns an array of songs taken from a YouTube channel * * @param {object} payload - object that contains the payload * @param {boolean} payload.musicOnly - whether to return music videos or all videos in the channel * @param {boolean} payload.disableSearch - whether to allow searching for custom url/username * @param {string} payload.url - the url of the YouTube channel * @returns {Promise} - returns promise (reject, resolve) */ GET_CHANNEL(payload) { return new Promise((resolve, reject) => { const regex = /\.[\w]+\/(?:(?:channel\/(UC[0-9A-Za-z_-]{21}[AQgw]))|(?:user\/?([\w-]+))|(?:c\/?([\w-]+))|(?:\/?([\w-]+)))/; const splitQuery = regex.exec(payload.url); if (!splitQuery) { YouTubeModule.log("ERROR", "GET_CHANNEL", "Invalid YouTube channel URL query."); reject(new Error("Invalid playlist URL.")); return; } const channelId = splitQuery[1]; const channelUsername = splitQuery[2]; const channelCustomUrl = splitQuery[3]; const channelUsernameOrCustomUrl = splitQuery[4]; console.log(`Channel id: ${channelId}`); console.log(`Channel username: ${channelUsername}`); console.log(`Channel custom URL: ${channelCustomUrl}`); console.log(`Channel username or custom URL: ${channelUsernameOrCustomUrl}`); const disableSearch = payload.disableSearch || false; async.waterfall( [ next => { const payload = {}; if (channelId) payload.id = channelId; else if (channelUsername) payload.username = channelUsername; else return next(null, true, null); return YouTubeModule.runJob("GET_CHANNEL_UPLOADS_PLAYLIST_ID", payload, this) .then(({ playlistId }) => { next(null, false, playlistId); }) .catch(err => { if (err.message === "Channel not found. Is the channel public/unlisted?") next(null, true, null); else next(err); }); }, (getUsernameFromCustomUrl, playlistId, next) => { if (!getUsernameFromCustomUrl) return next(null, playlistId); if (disableSearch) return next( "Importing with this type of URL is disabled. Please provide a channel URL with the channel ID." ); const payload = {}; if (channelCustomUrl) payload.customUrl = channelCustomUrl; else if (channelUsernameOrCustomUrl) payload.customUrl = channelUsernameOrCustomUrl; else return next("No proper URL provided."); return YouTubeModule.runJob("GET_CHANNEL_ID_FROM_CUSTOM_URL", payload, this) .then(({ channelId }) => { YouTubeModule.runJob("GET_CHANNEL_UPLOADS_PLAYLIST_ID", { id: channelId }, this) .then(({ playlistId }) => { next(null, playlistId); }) .catch(err => next(err)); }) .catch(err => next(err)); }, (playlistId, next) => { let songs = []; let nextPageToken = ""; async.whilst( next => { YouTubeModule.log( "INFO", `Getting channel progress for job (${this.toString()}): ${ songs.length } songs gotten so far. Is there a next page: ${nextPageToken !== undefined}.` ); next(null, nextPageToken !== undefined); }, next => { // Add 250ms delay between each job request setTimeout(() => { YouTubeModule.runJob("GET_PLAYLIST_PAGE", { playlistId, nextPageToken }, this) .then(response => { songs = songs.concat(response.songs); nextPageToken = response.nextPageToken; next(); }) .catch(err => next(err)); }, 250); }, err => next(err, songs) ); }, (songs, next) => next( null, songs.map(song => song.contentDetails.videoId) ), (songs, next) => { if (!payload.musicOnly) return next(true, { songs }); return YouTubeModule.runJob("FILTER_MUSIC_VIDEOS", { videoIds: songs.slice() }, this) .then(filteredSongs => next(null, { filteredSongs, songs })) .catch(next); } ], (err, response) => { if (err && err !== true) { YouTubeModule.log("ERROR", "GET_CHANNEL", "Some error has occurred.", err.message || err); reject(new Error(err.message || err)); } else { resolve({ songs: response.filteredSongs ? response.filteredSongs.videoIds : response.songs }); } } ); }); } /** * Perform YouTube API get videos request * * @param {object} payload - object that contains the payload * @param {object} payload.params - request parameters * @returns {Promise} - returns promise (reject, resolve) */ API_GET_VIDEOS(payload) { return new Promise((resolve, reject) => { const { params } = payload; YouTubeModule.runJob( "API_CALL", { url: "https://www.googleapis.com/youtube/v3/videos", params: { key: config.get("apis.youtube.key"), ...params }, quotaCost: 1 }, this ) .then(response => { resolve(response); }) .catch(err => { reject(err); }); }); } /** * Perform YouTube API get playlist items request * * @param {object} payload - object that contains the payload * @param {object} payload.params - request parameters * @returns {Promise} - returns promise (reject, resolve) */ API_GET_PLAYLIST_ITEMS(payload) { return new Promise((resolve, reject) => { const { params } = payload; YouTubeModule.runJob( "API_CALL", { url: "https://www.googleapis.com/youtube/v3/playlistItems", params: { key: config.get("apis.youtube.key"), ...params }, quotaCost: 1 }, this ) .then(response => { resolve(response); }) .catch(err => { reject(err); }); }); } /** * Perform YouTube API get channels request * * @param {object} payload - object that contains the payload * @param {object} payload.params - request parameters * @returns {Promise} - returns promise (reject, resolve) */ API_GET_CHANNELS(payload) { return new Promise((resolve, reject) => { const { params } = payload; YouTubeModule.runJob( "API_CALL", { url: "https://www.googleapis.com/youtube/v3/channels", params: { key: config.get("apis.youtube.key"), ...params }, quotaCost: 1 }, this ) .then(response => { resolve(response); }) .catch(err => { reject(err); }); }); } /** * Perform YouTube API search request * * @param {object} payload - object that contains the payload * @param {object} payload.params - request parameters * @returns {Promise} - returns promise (reject, resolve) */ API_SEARCH(payload) { return new Promise((resolve, reject) => { const { params } = payload; YouTubeModule.runJob( "API_CALL", { url: "https://www.googleapis.com/youtube/v3/search", params: { key: config.get("apis.youtube.key"), ...params }, quotaCost: 100 }, this ) .then(response => { resolve(response); }) .catch(err => { reject(err); }); }); } /** * Perform YouTube API call * * @param {object} payload - object that contains the payload * @param {object} payload.url - request url * @param {object} payload.params - request parameters * @param {object} payload.quotaCost - request quotaCost * @returns {Promise} - returns promise (reject, resolve) */ API_CALL(payload) { return new Promise((resolve, reject) => { const { url, params, quotaCost } = payload; const quotaExceeded = isQuotaExceeded(YouTubeModule.apiCalls); if (quotaExceeded) reject(new Error("Quota has been exceeded. Please wait a while.")); else { const youtubeApiRequest = new YouTubeModule.YoutubeApiRequestModel({ url, date: Date.now(), quotaCost }); youtubeApiRequest.save(); const { ...keylessParams } = payload.params; CacheModule.runJob( "HSET", { table: "youtubeApiRequestParams", key: youtubeApiRequest._id.toString(), value: JSON.stringify(keylessParams) }, this ).then(); YouTubeModule.apiCalls.push({ date: youtubeApiRequest.date, quotaCost }); YouTubeModule.axios .get(url, { params, timeout: YouTubeModule.requestTimeout }) .then(response => { if (response.data.error) { reject(new Error(response.data.error)); } else { CacheModule.runJob( "HSET", { table: "youtubeApiRequestResults", key: youtubeApiRequest._id.toString(), value: JSON.stringify(response.data) }, this ).then(); resolve({ response }); } }) .catch(err => { reject(err); }); } }); } /** * Fetch all api requests * * @param {object} payload - object that contains the payload * @param {object} payload.fromDate - data to fetch requests up to * @returns {Promise} - returns promise (reject, resolve) */ GET_API_REQUESTS(payload) { return new Promise((resolve, reject) => { const fromDate = payload.fromDate ? new Date(payload.fromDate) : new Date(); YouTubeModule.youtubeApiRequestModel .find({ date: { $lte: fromDate } }) .sort({ date: -1 }) .exec((err, youtubeApiRequests) => { if (err) reject(new Error("Couldn't load YouTube API requests.")); else { resolve({ apiRequests: youtubeApiRequests }); } }); }); } /** * Fetch an api request * * @param {object} payload - object that contains the payload * @param {object} payload.apiRequestId - the api request id * @returns {Promise} - returns promise (reject, resolve) */ GET_API_REQUEST(payload) { return new Promise((resolve, reject) => { const { apiRequestId } = payload; async.waterfall( [ next => { YouTubeModule.youtubeApiRequestModel.findOne({ _id: apiRequestId }).exec(next); }, (apiRequest, next) => { CacheModule.runJob( "HGET", { table: "youtubeApiRequestParams", key: apiRequestId.toString() }, this ) .then(apiRequestParams => { next(null, { ...apiRequest._doc, params: apiRequestParams }); }) .catch(err => next(err)); }, (apiRequest, next) => { CacheModule.runJob( "HGET", { table: "youtubeApiRequestResults", key: apiRequestId.toString() }, this ) .then(apiRequestResults => { next(null, { ...apiRequest, results: apiRequestResults }); }) .catch(err => next(err)); } ], (err, apiRequest) => { if (err) reject(new Error(err)); else resolve({ apiRequest }); } ); }); } /** * Removed all stored api requests from mongo and redis * * @returns {Promise} - returns promise (reject, resolve) */ RESET_STORED_API_REQUESTS() { return new Promise((resolve, reject) => { async.waterfall( [ next => { this.publishProgress({ status: "update", message: `Resetting stored API requests (stage 1)` }); YouTubeModule.youtubeApiRequestModel.find({}, next); }, (apiRequests, next) => { this.publishProgress({ status: "update", message: `Resetting stored API requests (stage 2)` }); YouTubeModule.youtubeApiRequestModel.deleteMany({}, err => { if (err) next("Couldn't reset stored YouTube API requests."); else { next(null, apiRequests); } }); }, (apiRequests, next) => { this.publishProgress({ status: "update", message: `Resetting stored API requests (stage 3)` }); CacheModule.runJob("DEL", { key: "youtubeApiRequestParams" }, this) .then(() => next(null, apiRequests)) .catch(err => next(err)); }, (apiRequests, next) => { this.publishProgress({ status: "update", message: `Resetting stored API requests (stage 4)` }); CacheModule.runJob("DEL", { key: "youtubeApiRequestResults" }, this) .then(() => next(null, apiRequests)) .catch(err => next(err)); }, (apiRequests, next) => { this.publishProgress({ status: "update", message: `Resetting stored API requests (stage 5)` }); async.eachLimit( apiRequests.map(apiRequest => apiRequest._id), 1, (requestId, next) => { CacheModule.runJob( "PUB", { channel: "youtube.removeYoutubeApiRequest", value: requestId }, this ) .then(() => { next(); }) .catch(err => { next(err); }); }, err => { if (err) next(err); else next(); } ); } ], err => { if (err) reject(new Error(err)); else resolve(); } ); }); } /** * Remove a stored api request * * @param {object} payload - object that contains the payload * @param {object} payload.requestId - the api request id * @returns {Promise} - returns promise (reject, resolve) */ REMOVE_STORED_API_REQUEST(payload) { return new Promise((resolve, reject) => { async.waterfall( [ next => { YouTubeModule.youtubeApiRequestModel.deleteOne({ _id: payload.requestId }, err => { if (err) next("Couldn't remove stored YouTube API request."); else { next(); } }); }, next => { CacheModule.runJob( "HDEL", { table: "youtubeApiRequestParams", key: payload.requestId.toString() }, this ) .then(next) .catch(err => next(err)); }, next => { CacheModule.runJob( "HDEL", { table: "youtubeApiRequestResults", key: payload.requestId.toString() }, this ) .then(next) .catch(err => next(err)); }, next => { CacheModule.runJob("PUB", { channel: "youtube.removeYoutubeApiRequest", value: payload.requestId.toString() }) .then(next) .catch(err => next(err)); } ], err => { if (err) reject(new Error(err)); else resolve(); } ); }); } /** * Create YouTube videos * * @param {object} payload - an object containing the payload * @param {string} payload.youtubeVideos - the youtubeVideo object or array of * @returns {Promise} - returns a promise (resolve, reject) */ CREATE_VIDEOS(payload) { return new Promise((resolve, reject) => { async.waterfall( [ next => { let { youtubeVideos } = payload; if (typeof youtubeVideos !== "object") next("Invalid youtubeVideos type"); else { if (!Array.isArray(youtubeVideos)) youtubeVideos = [youtubeVideos]; YouTubeModule.youtubeVideoModel.insertMany(youtubeVideos, next); } }, (youtubeVideos, next) => { const youtubeIds = youtubeVideos.map(video => video.youtubeId); async.eachLimit( youtubeIds, 2, (youtubeId, next) => { MediaModule.runJob("RECALCULATE_RATINGS", { youtubeId }, this) .then(() => next()) .catch(next); }, err => { if (err) next(err); else next(null, youtubeVideos); } ); } ], (err, youtubeVideos) => { if (err) reject(new Error(err)); else resolve({ youtubeVideos }); } ); }); } /** * Get YouTube video * * @param {object} payload - an object containing the payload * @param {string} payload.identifier - the youtube video ObjectId or YouTube ID * @param {string} payload.createMissing - attempt to fetch and create video if not in db * @returns {Promise} - returns a promise (resolve, reject) */ GET_VIDEO(payload) { return new Promise((resolve, reject) => { async.waterfall( [ next => { const query = mongoose.Types.ObjectId.isValid(payload.identifier) ? { _id: payload.identifier } : { youtubeId: payload.identifier }; return YouTubeModule.youtubeVideoModel.findOne(query, next); }, (video, next) => { if (video) return next(null, video, false); if (mongoose.Types.ObjectId.isValid(payload.identifier) || !payload.createMissing) return next("YouTube video not found."); const params = { part: "snippet,contentDetails,statistics,status", id: payload.identifier }; return YouTubeModule.runJob("API_GET_VIDEOS", { params }, this) .then(({ response }) => { const { data } = response; if (data.items[0] === undefined) return next("The specified video does not exist or cannot be publicly accessed."); // TODO Clean up duration converter let dur = data.items[0].contentDetails.duration; dur = dur.replace("PT", ""); let duration = 0; dur = dur.replace(/([\d]*)H/, (v, v2) => { v2 = Number(v2); duration = v2 * 60 * 60; return ""; }); dur = dur.replace(/([\d]*)M/, (v, v2) => { v2 = Number(v2); duration += v2 * 60; return ""; }); dur.replace(/([\d]*)S/, (v, v2) => { v2 = Number(v2); duration += v2; return ""; }); const youtubeVideo = { youtubeId: data.items[0].id, title: data.items[0].snippet.title, author: data.items[0].snippet.channelTitle, thumbnail: data.items[0].snippet.thumbnails.default.url, duration, uploadedAt: new Date(data.items[0].snippet.publishedAt) }; return next(null, false, youtubeVideo); }) .catch(next); }, (video, youtubeVideo, next) => { if (video) return next(null, video, true); return YouTubeModule.runJob("CREATE_VIDEOS", { youtubeVideos: youtubeVideo }, this) .then(res => { if (res.youtubeVideos.length === 1) next(null, res.youtubeVideos[0], false); else next("YouTube video not found."); }) .catch(next); } ], (err, video, existing) => { if (err) reject(new Error(err)); else resolve({ video, existing }); } ); }); } /** * Remove YouTube videos * * @param {object} payload - an object containing the payload * @param {string} payload.videoIds - Array of youtubeVideo ObjectIds * @returns {Promise} - returns a promise (resolve, reject) */ REMOVE_VIDEOS(payload) { return new Promise((resolve, reject) => { let { videoIds } = payload; if (!Array.isArray(videoIds)) videoIds = [videoIds]; async.waterfall( [ next => { if (!videoIds.every(videoId => mongoose.Types.ObjectId.isValid(videoId))) next("One or more videoIds are not a valid ObjectId."); else { this.publishProgress({ status: "update", message: `Removing video (stage 1)` }); YouTubeModule.youtubeVideoModel.find({ _id: { $in: videoIds } }, (err, videos) => { if (err) next(err); else next( null, videos.map(video => video.youtubeId) ); }); } }, (youtubeIds, next) => { this.publishProgress({ status: "update", message: `Removing video (stage 2)` }); SongsModule.SongModel.find({ youtubeId: { $in: youtubeIds } }, (err, songs) => { if (err) next(err); else { const filteredIds = youtubeIds.filter( youtubeId => !songs.find(song => song.youtubeId === youtubeId) ); if (filteredIds.length < youtubeIds.length) next("One or more videos are attached to songs."); else next(null, filteredIds); } }); }, (youtubeIds, next) => { this.publishProgress({ status: "update", message: `Removing video (stage 3)` }); MediaModule.runJob("REMOVE_RATINGS", { youtubeIds }, this) .then(() => next(null, youtubeIds)) .catch(next); }, (youtubeIds, next) => { this.publishProgress({ status: "update", message: `Removing video (stage 4)` }); async.eachLimit( youtubeIds, 2, (youtubeId, next) => { async.waterfall( [ next => { PlaylistsModule.playlistModel.find( { "songs.youtubeId": youtubeId }, (err, playlists) => { if (err) next(err); else { async.eachLimit( playlists, 1, (playlist, next) => { PlaylistsModule.runJob( "REMOVE_FROM_PLAYLIST", { playlistId: playlist._id, youtubeId }, this ) .then(() => next()) .catch(next); }, next ); } } ); }, next => { StationsModule.stationModel.find( { "queue.youtubeId": youtubeId }, (err, stations) => { if (err) next(err); else { async.eachLimit( stations, 1, (station, next) => { StationsModule.runJob( "REMOVE_FROM_QUEUE", { stationId: station._id, youtubeId }, this ) .then(() => next()) .catch(err => { if ( err === "Station not found" || err === "Song is not currently in the queue." ) next(); else next(err); }); }, next ); } } ); }, next => { StationsModule.stationModel.find( { "currentSong.youtubeId": youtubeId }, (err, stations) => { if (err) next(err); else { async.eachLimit( stations, 1, (station, next) => { StationsModule.runJob( "SKIP_STATION", { stationId: station._id, natural: false }, this ) .then(() => { next(); }) .catch(err => { if (err.message === "Station not found.") next(); else next(err); }); }, next ); } } ); } ], next ); }, next ); }, next => { this.publishProgress({ status: "update", message: `Removing video (stage 5)` }); YouTubeModule.youtubeVideoModel.deleteMany({ _id: { $in: videoIds } }, next); }, (res, next) => { this.publishProgress({ status: "update", message: `Removing video (stage 6)` }); CacheModule.runJob("PUB", { channel: "youtube.removeVideos", value: videoIds }) .then(next) .catch(err => next(err)); } ], err => { if (err) reject(new Error(err)); else resolve(); } ); }); } /** * Request a set of YouTube videos * * @param {object} payload - an object containing the payload * @param {string} payload.url - the url of the the YouTube playlist or channel * @param {boolean} payload.musicOnly - whether to only get music from the playlist/channel * @param {boolean} payload.returnVideos - whether to return videos * @returns {Promise} - returns a promise (resolve, reject) */ REQUEST_SET(payload) { return new Promise((resolve, reject) => { async.waterfall( [ next => { const playlistRegex = /[\\?&]list=([^&#]*)/; const channelRegex = /\.[\w]+\/(?:(?:channel\/(UC[0-9A-Za-z_-]{21}[AQgw]))|(?:user\/?([\w-]+))|(?:c\/?([\w-]+))|(?:\/?([\w-]+)))/; if (playlistRegex.exec(payload.url) || channelRegex.exec(payload.url)) YouTubeModule.runJob( playlistRegex.exec(payload.url) ? "GET_PLAYLIST" : "GET_CHANNEL", { url: payload.url, musicOnly: payload.musicOnly }, this ) .then(res => { next(null, res.songs); }) .catch(next); else next("Invalid YouTube URL."); }, (youtubeIds, next) => { let successful = 0; let failed = 0; let alreadyInDatabase = 0; let videos = {}; const successfulVideoIds = []; const failedVideoIds = []; if (youtubeIds.length === 0) next(); async.eachOfLimit( youtubeIds, 1, (youtubeId, index, next2) => { YouTubeModule.runJob("GET_VIDEO", { identifier: youtubeId, createMissing: true }, this) .then(res => { successful += 1; successfulVideoIds.push(youtubeId); if (res.existing) alreadyInDatabase += 1; if (res.video) videos[index] = res.video; }) .catch(() => { failed += 1; failedVideoIds.push(youtubeId); }) .finally(() => { next2(); }); }, () => { if (payload.returnVideos) videos = Object.keys(videos) .sort() .map(key => videos[key]); next(null, { successful, failed, alreadyInDatabase, videos, successfulVideoIds, failedVideoIds }); } ); } ], (err, response) => { if (err) reject(new Error(err)); else resolve(response); } ); }); } } export default new _YouTubeModule();