143 lines
3.5 KiB
TypeScript
143 lines
3.5 KiB
TypeScript
import * as youtubeDL from 'youtube-dl'
|
|
import { truncate } from 'lodash'
|
|
import { CONFIG, CONSTRAINTS_FIELDS, VIDEO_CATEGORIES } from '../initializers'
|
|
import { join } from 'path'
|
|
import * as crypto from 'crypto'
|
|
import { logger } from './logger'
|
|
|
|
export type YoutubeDLInfo = {
|
|
name: string
|
|
description: string
|
|
category: number
|
|
licence: number
|
|
nsfw: boolean
|
|
tags: string[]
|
|
thumbnailUrl: string
|
|
}
|
|
|
|
function getYoutubeDLInfo (url: string): Promise<YoutubeDLInfo> {
|
|
return new Promise<YoutubeDLInfo>((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 hash = crypto.createHash('sha256').update(url).digest('hex')
|
|
const path = join(CONFIG.STORAGE.VIDEOS_DIR, hash + '-import.mp4')
|
|
|
|
logger.info('Importing video %s', url)
|
|
|
|
const options = [ '-f', 'bestvideo[ext=mp4]+bestaudio[ext=m4a]/best', '-o', path ]
|
|
|
|
return new Promise<string>((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
|
|
}
|