server/initializers/checker-before-init.ts

   1 import * as config from 'config'
   2 import { promisify0 } from '../helpers/core-utils'
   3 import { isArray } from '../helpers/custom-validators/misc'
   4
   5 // ONLY USE CORE MODULES IN THIS FILE!
   6
   7 // Check the config files
   8 function checkMissedConfig () {
   9   const required = [ 'listen.port', 'listen.hostname',
  10     'webserver.https', 'webserver.hostname', 'webserver.port',
  11     'trust_proxy',
  12     'database.hostname', 'database.port', 'database.suffix', 'database.username', 'database.password', 'database.pool.max',
  13     'smtp.hostname', 'smtp.port', 'smtp.username', 'smtp.password', 'smtp.tls', 'smtp.from_address',
  14     'storage.avatars', 'storage.videos', 'storage.logs', 'storage.previews', 'storage.thumbnails', 'storage.torrents', 'storage.cache',
  15     'storage.redundancy', 'storage.tmp',
  16     'log.level',
  17     'user.video_quota', 'user.video_quota_daily',
  18     'cache.previews.size', 'admin.email',
  19     'signup.enabled', 'signup.limit', 'signup.requires_email_verification',
  20     'signup.filters.cidr.whitelist', 'signup.filters.cidr.blacklist',
  21     'redundancy.videos.strategies', 'redundancy.videos.check_interval',
  22     'transcoding.enabled', 'transcoding.threads',
  23     'import.videos.http.enabled', 'import.videos.torrent.enabled',
  24     'trending.videos.interval_days',
  25     'instance.name', 'instance.short_description', 'instance.description', 'instance.terms', 'instance.default_client_route',
  26     'instance.default_nsfw_policy', 'instance.robots', 'instance.securitytxt',
  27     'services.twitter.username', 'services.twitter.whitelisted'
  28   ]
  29   const requiredAlternatives = [
  30     [ // set
  31       ['redis.hostname', 'redis.port'], // alternative
  32       ['redis.socket']
  33     ]
  34   ]
  35   const miss: string[] = []
  36
  37   for (const key of required) {
  38     if (!config.has(key)) {
  39       miss.push(key)
  40     }
  41   }
  42
  43   const redundancyVideos = config.get<any>('redundancy.videos.strategies')
  44   if (isArray(redundancyVideos)) {
  45     for (const r of redundancyVideos) {
  46       if (!r.size) miss.push('redundancy.videos.strategies.size')
  47       if (!r.min_lifetime) miss.push('redundancy.videos.strategies.min_lifetime')
  48     }
  49   }
  50
  51   const missingAlternatives = requiredAlternatives.filter(
  52     set => !set.find(alternative => !alternative.find(key => !config.has(key)))
  53   )
  54
  55   missingAlternatives
  56     .forEach(set => set[0].forEach(key => miss.push(key)))
  57
  58   return miss
  59 }
  60
  61 // Check the available codecs
  62 // We get CONFIG by param to not import it in this file (import orders)
  63 async function checkFFmpeg (CONFIG: { TRANSCODING: { ENABLED: boolean } }) {
  64   const Ffmpeg = require('fluent-ffmpeg')
  65   const getAvailableCodecsPromise = promisify0(Ffmpeg.getAvailableCodecs)
  66   const codecs = await getAvailableCodecsPromise()
  67   const canEncode = [ 'libx264' ]
  68
  69   if (CONFIG.TRANSCODING.ENABLED === false) return undefined
  70
  71   for (const codec of canEncode) {
  72     if (codecs[codec] === undefined) {
  73       throw new Error('Unknown codec ' + codec + ' in FFmpeg.')
  74     }
  75
  76     if (codecs[codec].canEncode !== true) {
  77       throw new Error('Unavailable encode codec ' + codec + ' in FFmpeg')
  78     }
  79   }
  80
  81   return checkFFmpegEncoders()
  82 }
  83
  84 // Optional encoders, if present, can be used to improve transcoding
  85 // Here we ask ffmpeg if it detects their presence on the system, so that we can later use them
  86 let supportedOptionalEncoders: Map<string, boolean>
  87 async function checkFFmpegEncoders (): Promise<Map<string, boolean>> {
  88   if (supportedOptionalEncoders !== undefined) {
  89     return supportedOptionalEncoders
  90   }
  91
  92   const Ffmpeg = require('fluent-ffmpeg')
  93   const getAvailableEncodersPromise = promisify0(Ffmpeg.getAvailableEncoders)
  94   const encoders = await getAvailableEncodersPromise()
  95   const optionalEncoders = [ 'libfdk_aac' ]
  96   supportedOptionalEncoders = new Map<string, boolean>()
  97
  98   for (const encoder of optionalEncoders) {
  99     supportedOptionalEncoders.set(encoder, encoders[encoder] !== undefined)
 100   }
 101
 102   return supportedOptionalEncoders
 103 }
 104
 105 // ---------------------------------------------------------------------------
 106
 107 export {
 108   checkFFmpeg,
 109   checkFFmpegEncoders,
 110   checkMissedConfig
 111 }