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import { CONSTRAINTS_FIELDS, VIDEO_CATEGORIES, VIDEO_LANGUAGES, VIDEO_LICENCES } from '../../initializers/constants'
import { peertubeTruncate } from '../core-utils'
import { isUrlValid } from '../custom-validators/activitypub/misc'
type YoutubeDLInfo = {
name?: string
description?: string
category?: number
language?: string
licence?: number
nsfw?: boolean
tags?: string[]
thumbnailUrl?: string
ext?: string
originallyPublishedAt?: Date
webpageUrl?: string
urls?: string[]
}
class YoutubeDLInfoBuilder {
private readonly info: any
constructor (info: any) {
this.info = { ...info }
}
getInfo () {
const obj = this.buildVideoInfo(this.normalizeObject(this.info))
if (obj.name && obj.name.length < CONSTRAINTS_FIELDS.VIDEOS.NAME.min) obj.name += ' video'
return obj
}
private 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
}
private buildOriginallyPublishedAt (obj: any) {
let originallyPublishedAt: Date = null
const uploadDateMatcher = /^(\d{4})(\d{2})(\d{2})$/.exec(obj.upload_date)
if (uploadDateMatcher) {
originallyPublishedAt = new Date()
originallyPublishedAt.setHours(0, 0, 0, 0)
const year = parseInt(uploadDateMatcher[1], 10)
// Month starts from 0
const month = parseInt(uploadDateMatcher[2], 10) - 1
const day = parseInt(uploadDateMatcher[3], 10)
originallyPublishedAt.setFullYear(year, month, day)
}
return originallyPublishedAt
}
private buildVideoInfo (obj: any): YoutubeDLInfo {
return {
name: this.titleTruncation(obj.title),
description: this.descriptionTruncation(obj.description),
category: this.getCategory(obj.categories),
licence: this.getLicence(obj.license),
language: this.getLanguage(obj.language),
nsfw: this.isNSFW(obj),
tags: this.getTags(obj.tags),
thumbnailUrl: obj.thumbnail || undefined,
urls: this.buildAvailableUrl(obj),
originallyPublishedAt: this.buildOriginallyPublishedAt(obj),
ext: obj.ext,
webpageUrl: obj.webpage_url
}
}
private buildAvailableUrl (obj: any) {
const urls: string[] = []
if (obj.url) urls.push(obj.url)
if (obj.urls) {
if (Array.isArray(obj.urls)) urls.push(...obj.urls)
else urls.push(obj.urls)
}
const formats = Array.isArray(obj.formats)
? obj.formats
: []
for (const format of formats) {
if (!format.url) continue
urls.push(format.url)
}
const thumbnails = Array.isArray(obj.thumbnails)
? obj.thumbnails
: []
for (const thumbnail of thumbnails) {
if (!thumbnail.url) continue
urls.push(thumbnail.url)
}
if (obj.thumbnail) urls.push(obj.thumbnail)
for (const subtitleKey of Object.keys(obj.subtitles || {})) {
const subtitles = obj.subtitles[subtitleKey]
if (!Array.isArray(subtitles)) continue
for (const subtitle of subtitles) {
if (!subtitle.url) continue
urls.push(subtitle.url)
}
}
return urls.filter(u => u && isUrlValid(u))
}
private titleTruncation (title: string) {
return peertubeTruncate(title, {
length: CONSTRAINTS_FIELDS.VIDEOS.NAME.max,
separator: /,? +/,
omission: ' […]'
})
}
private descriptionTruncation (description: string) {
if (!description || description.length < CONSTRAINTS_FIELDS.VIDEOS.DESCRIPTION.min) return undefined
return peertubeTruncate(description, {
length: CONSTRAINTS_FIELDS.VIDEOS.DESCRIPTION.max,
separator: /,? +/,
omission: ' […]'
})
}
private isNSFW (info: any) {
return info?.age_limit >= 16
}
private getTags (tags: string[]) {
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)
}
private getLicence (licence: string) {
if (!licence) return undefined
if (licence.includes('Creative Commons Attribution')) return 1
for (const key of Object.keys(VIDEO_LICENCES)) {
const peertubeLicence = VIDEO_LICENCES[key]
if (peertubeLicence.toLowerCase() === licence.toLowerCase()) return parseInt(key, 10)
}
return undefined
}
private 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
}
private getLanguage (language: string) {
return VIDEO_LANGUAGES[language] ? language : undefined
}
}
// ---------------------------------------------------------------------------
export {
YoutubeDLInfo,
YoutubeDLInfoBuilder
}
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