import * as youtubeDL from 'youtube-dl' import { truncate } from 'lodash' import { CONSTRAINTS_FIELDS, VIDEO_CATEGORIES } from '../initializers' import { logger } from './logger' import { generateVideoTmpPath } from './utils' export type YoutubeDLInfo = { name?: string description?: string category?: number licence?: number nsfw?: boolean tags?: string[] thumbnailUrl?: string } function getYoutubeDLInfo (url: string): Promise { return new Promise((res, rej) => { const options = [ '-j', '--flat-playlist' ] youtubeDL.getInfo(url, options, (err, info) => { if (err) return rej(err) const obj = normalizeObject(info) return res(buildVideoInfo(obj)) }) }) } function downloadYoutubeDLVideo (url: string) { const path = generateVideoTmpPath(url) logger.info('Importing youtubeDL video %s', url) const options = [ '-f', 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/best', '-o', path ] return new Promise((res, rej) => { youtubeDL.exec(url, options, async (err, output) => { if (err) return rej(err) return res(path) }) }) } // --------------------------------------------------------------------------- export { downloadYoutubeDLVideo, getYoutubeDLInfo } // --------------------------------------------------------------------------- function normalizeObject (obj: any) { const newObj: any = {} for (const key of Object.keys(obj)) { // Deprecated key if (key === 'resolution') continue const value = obj[key] if (typeof value === 'string') { newObj[key] = value.normalize() } else { newObj[key] = value } } return newObj } function buildVideoInfo (obj: any) { return { name: titleTruncation(obj.title), description: descriptionTruncation(obj.description), category: getCategory(obj.categories), licence: getLicence(obj.license), nsfw: isNSFW(obj), tags: getTags(obj.tags), thumbnailUrl: obj.thumbnail || undefined } } function titleTruncation (title: string) { return truncate(title, { 'length': CONSTRAINTS_FIELDS.VIDEOS.NAME.max, 'separator': /,? +/, 'omission': ' […]' }) } function descriptionTruncation (description: string) { if (!description || description.length < CONSTRAINTS_FIELDS.VIDEOS.DESCRIPTION.min) return undefined return truncate(description, { 'length': CONSTRAINTS_FIELDS.VIDEOS.DESCRIPTION.max, 'separator': /,? +/, 'omission': ' […]' }) } function isNSFW (info: any) { return info.age_limit && info.age_limit >= 16 } function getTags (tags: any) { if (Array.isArray(tags) === false) return [] return tags .filter(t => t.length < CONSTRAINTS_FIELDS.VIDEOS.TAG.max && t.length > CONSTRAINTS_FIELDS.VIDEOS.TAG.min) .map(t => t.normalize()) .slice(0, 5) } function getLicence (licence: string) { if (!licence) return undefined if (licence.indexOf('Creative Commons Attribution') !== -1) return 1 return undefined } function getCategory (categories: string[]) { if (!categories) return undefined const categoryString = categories[0] if (!categoryString || typeof categoryString !== 'string') return undefined if (categoryString === 'News & Politics') return 11 for (const key of Object.keys(VIDEO_CATEGORIES)) { const category = VIDEO_CATEGORIES[key] if (categoryString.toLowerCase() === category.toLowerCase()) return parseInt(key, 10) } return undefined }