1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
import { truncate } from 'lodash'
import { CONSTRAINTS_FIELDS, VIDEO_CATEGORIES } from '../initializers'
import { logger } from './logger'
import { generateVideoTmpPath } from './utils'
import { YoutubeDlUpdateScheduler } from '../lib/schedulers/youtube-dl-update-scheduler'
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>(async (res, rej) => {
const options = [ '-j', '--flat-playlist' ]
const youtubeDL = await safeGetYoutubeDL()
youtubeDL.getInfo(url, options, (err, info) => {
if (err) return rej(err)
if (info.is_live === true) return rej(new Error('Cannot download a live streaming.'))
const obj = buildVideoInfo(normalizeObject(info))
if (obj.name && obj.name.length < CONSTRAINTS_FIELDS.VIDEOS.NAME.min) obj.name += ' video'
return res(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<string>(async (res, rej) => {
const youtubeDL = await safeGetYoutubeDL()
youtubeDL.exec(url, options, async (err, output) => {
if (err) return rej(err)
return res(path)
})
})
}
// ---------------------------------------------------------------------------
export {
downloadYoutubeDLVideo,
getYoutubeDLInfo
}
// ---------------------------------------------------------------------------
async function safeGetYoutubeDL () {
let youtubeDL
try {
youtubeDL = require('youtube-dl')
} catch (e) {
// Download binary
await YoutubeDlUpdateScheduler.Instance.execute()
youtubeDL = require('youtube-dl')
}
return youtubeDL
}
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
}
|
