server/initializers/checker-before-init.ts

   1 import * as config from 'config'
   2 import { promisify0 } from '../helpers/core-utils'
   3
   4 // ONLY USE CORE MODULES IN THIS FILE!
   5
   6 // Check the config files
   7 function checkMissedConfig () {
   8   const required = [ 'listen.port', 'listen.hostname',
   9     'webserver.https', 'webserver.hostname', 'webserver.port',
  10     'trust_proxy',
  11     'database.hostname', 'database.port', 'database.suffix', 'database.username', 'database.password', 'database.pool.max',
  12     'smtp.hostname', 'smtp.port', 'smtp.username', 'smtp.password', 'smtp.tls', 'smtp.from_address',
  13     'storage.avatars', 'storage.videos', 'storage.logs', 'storage.previews', 'storage.thumbnails', 'storage.torrents', 'storage.cache',
  14     'storage.redundancy', 'storage.tmp', 'storage.streaming_playlists',
  15     'log.level',
  16     'user.video_quota', 'user.video_quota_daily',
  17     'csp.enabled', 'csp.report_only', 'csp.report_uri',
  18     'cache.previews.size', 'admin.email', 'contact_form.enabled',
  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', 'transcoding.allow_additional_extensions',
  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.is_nsfw', '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
  45   if (Array.isArray(redundancyVideos)) {
  46     for (const r of redundancyVideos) {
  47       if (!r.size) miss.push('redundancy.videos.strategies.size')
  48       if (!r.min_lifetime) miss.push('redundancy.videos.strategies.min_lifetime')
  49     }
  50   }
  51
  52   const missingAlternatives = requiredAlternatives.filter(
  53     set => !set.find(alternative => !alternative.find(key => !config.has(key)))
  54   )
  55
  56   missingAlternatives
  57     .forEach(set => set[0].forEach(key => miss.push(key)))
  58
  59   return miss
  60 }
  61
  62 // Check the available codecs
  63 // We get CONFIG by param to not import it in this file (import orders)
  64 async function checkFFmpeg (CONFIG: { TRANSCODING: { ENABLED: boolean } }) {
  65   const Ffmpeg = require('fluent-ffmpeg')
  66   const getAvailableCodecsPromise = promisify0(Ffmpeg.getAvailableCodecs)
  67   const codecs = await getAvailableCodecsPromise()
  68   const canEncode = [ 'libx264' ]
  69
  70   if (CONFIG.TRANSCODING.ENABLED === false) return undefined
  71
  72   for (const codec of canEncode) {
  73     if (codecs[codec] === undefined) {
  74       throw new Error('Unknown codec ' + codec + ' in FFmpeg.')
  75     }
  76
  77     if (codecs[codec].canEncode !== true) {
  78       throw new Error('Unavailable encode codec ' + codec + ' in FFmpeg')
  79     }
  80   }
  81
  82   return checkFFmpegEncoders()
  83 }
  84
  85 // Optional encoders, if present, can be used to improve transcoding
  86 // Here we ask ffmpeg if it detects their presence on the system, so that we can later use them
  87 let supportedOptionalEncoders: Map<string, boolean>
  88 async function checkFFmpegEncoders (): Promise<Map<string, boolean>> {
  89   if (supportedOptionalEncoders !== undefined) {
  90     return supportedOptionalEncoders
  91   }
  92
  93   const Ffmpeg = require('fluent-ffmpeg')
  94   const getAvailableEncodersPromise = promisify0(Ffmpeg.getAvailableEncoders)
  95   const encoders = await getAvailableEncodersPromise()
  96   const optionalEncoders = [ 'libfdk_aac' ]
  97   supportedOptionalEncoders = new Map<string, boolean>()
  98
  99   for (const encoder of optionalEncoders) {
 100     supportedOptionalEncoders.set(encoder, encoders[encoder] !== undefined)
 101   }
 102
 103   return supportedOptionalEncoders
 104 }
 105
 106 // ---------------------------------------------------------------------------
 107
 108 export {
 109   checkFFmpeg,
 110   checkFFmpegEncoders,
 111   checkMissedConfig
 112 }