server/initializers/constants.ts

   1 import { IConfig } from 'config'
   2 import { dirname, join } from 'path'
   3 import { JobType, VideoRateType, VideoState } from '../../shared/models'
   4 import { ActivityPubActorType } from '../../shared/models/activitypub'
   5 import { FollowState } from '../../shared/models/actors'
   6 import { VideoPrivacy } from '../../shared/models/videos'
   7 // Do not use barrels, remain constants as independent as possible
   8 import { buildPath, isTestInstance, root, sanitizeHost, sanitizeUrl } from '../helpers/core-utils'
   9 import { NSFWPolicyType } from '../../shared/models/videos/nsfw-policy.type'
  10 import { invert } from 'lodash'
  11
  12 // Use a variable to reload the configuration if we need
  13 let config: IConfig = require('config')
  14
  15 // ---------------------------------------------------------------------------
  16
  17 const LAST_MIGRATION_VERSION = 230
  18
  19 // ---------------------------------------------------------------------------
  20
  21 // API version
  22 const API_VERSION = 'v1'
  23
  24 // Number of results by default for the pagination
  25 const PAGINATION_COUNT_DEFAULT = 15
  26
  27 // Sortable columns per schema
  28 const SORTABLE_COLUMNS = {
  29   USERS: [ 'id', 'username', 'createdAt' ],
  30   ACCOUNTS: [ 'createdAt' ],
  31   JOBS: [ 'createdAt' ],
  32   VIDEO_ABUSES: [ 'id', 'createdAt' ],
  33   VIDEO_CHANNELS: [ 'id', 'name', 'updatedAt', 'createdAt' ],
  34   VIDEOS: [ 'name', 'duration', 'createdAt', 'publishedAt', 'views', 'likes' ],
  35   VIDEO_COMMENT_THREADS: [ 'createdAt' ],
  36   BLACKLISTS: [ 'id', 'name', 'duration', 'views', 'likes', 'dislikes', 'uuid', 'createdAt' ],
  37   FOLLOWERS: [ 'createdAt' ],
  38   FOLLOWING: [ 'createdAt' ]
  39 }
  40
  41 const OAUTH_LIFETIME = {
  42   ACCESS_TOKEN: 3600 * 24, // 1 day, for upload
  43   REFRESH_TOKEN: 1209600 // 2 weeks
  44 }
  45
  46 const ROUTE_CACHE_LIFETIME = {
  47   FEEDS: 1000 * 60 * 15, // 15 minutes
  48   ACTIVITY_PUB: {
  49     VIDEOS: 1000 // 1 second, cache concurrent requests after a broadcast for example
  50   }
  51 }
  52
  53 // ---------------------------------------------------------------------------
  54
  55 // Number of points we add/remove after a successful/bad request
  56 const ACTOR_FOLLOW_SCORE = {
  57   PENALTY: -10,
  58   BONUS: 10,
  59   BASE: 1000,
  60   MAX: 10000
  61 }
  62
  63 const FOLLOW_STATES: { [ id: string ]: FollowState } = {
  64   PENDING: 'pending',
  65   ACCEPTED: 'accepted'
  66 }
  67
  68 const REMOTE_SCHEME = {
  69   HTTP: 'https',
  70   WS: 'wss'
  71 }
  72
  73 const JOB_ATTEMPTS: { [ id in JobType ]: number } = {
  74   'activitypub-http-broadcast': 5,
  75   'activitypub-http-unicast': 5,
  76   'activitypub-http-fetcher': 5,
  77   'activitypub-follow': 5,
  78   'video-file-import': 1,
  79   'video-file': 1,
  80   'email': 5
  81 }
  82 const JOB_CONCURRENCY: { [ id in JobType ]: number } = {
  83   'activitypub-http-broadcast': 1,
  84   'activitypub-http-unicast': 5,
  85   'activitypub-http-fetcher': 1,
  86   'activitypub-follow': 3,
  87   'video-file-import': 1,
  88   'video-file': 1,
  89   'email': 5
  90 }
  91 const BROADCAST_CONCURRENCY = 10 // How many requests in parallel we do in activitypub-http-broadcast job
  92 const JOB_REQUEST_TIMEOUT = 3000 // 3 seconds
  93 const JOB_REQUEST_TTL = 60000 * 10 // 10 minutes
  94 const JOB_COMPLETED_LIFETIME = 60000 * 60 * 24 * 2 // 2 days
  95
  96 // 1 hour
  97 let SCHEDULER_INTERVALS_MS = {
  98   badActorFollow: 60000 * 60, // 1 hour
  99   removeOldJobs: 60000 * 60, // 1 hour
 100   updateVideos: 60000 // 1 minute
 101 }
 102
 103 // ---------------------------------------------------------------------------
 104
 105 const CONFIG = {
 106   CUSTOM_FILE: getLocalConfigFilePath(),
 107   LISTEN: {
 108     PORT: config.get<number>('listen.port'),
 109     HOSTNAME: config.get<string>('listen.hostname')
 110   },
 111   DATABASE: {
 112     DBNAME: 'peertube' + config.get<string>('database.suffix'),
 113     HOSTNAME: config.get<string>('database.hostname'),
 114     PORT: config.get<number>('database.port'),
 115     USERNAME: config.get<string>('database.username'),
 116     PASSWORD: config.get<string>('database.password')
 117   },
 118   REDIS: {
 119     HOSTNAME: config.get<string>('redis.hostname'),
 120     PORT: config.get<number>('redis.port'),
 121     AUTH: config.get<string>('redis.auth'),
 122     DB: config.get<number>('redis.db')
 123   },
 124   SMTP: {
 125     HOSTNAME: config.get<string>('smtp.hostname'),
 126     PORT: config.get<number>('smtp.port'),
 127     USERNAME: config.get<string>('smtp.username'),
 128     PASSWORD: config.get<string>('smtp.password'),
 129     TLS: config.get<boolean>('smtp.tls'),
 130     DISABLE_STARTTLS: config.get<boolean>('smtp.disable_starttls'),
 131     CA_FILE: config.get<string>('smtp.ca_file'),
 132     FROM_ADDRESS: config.get<string>('smtp.from_address')
 133   },
 134   STORAGE: {
 135     AVATARS_DIR: buildPath(config.get<string>('storage.avatars')),
 136     LOG_DIR: buildPath(config.get<string>('storage.logs')),
 137     VIDEOS_DIR: buildPath(config.get<string>('storage.videos')),
 138     THUMBNAILS_DIR: buildPath(config.get<string>('storage.thumbnails')),
 139     PREVIEWS_DIR: buildPath(config.get<string>('storage.previews')),
 140     TORRENTS_DIR: buildPath(config.get<string>('storage.torrents')),
 141     CACHE_DIR: buildPath(config.get<string>('storage.cache'))
 142   },
 143   WEBSERVER: {
 144     SCHEME: config.get<boolean>('webserver.https') === true ? 'https' : 'http',
 145     WS: config.get<boolean>('webserver.https') === true ? 'wss' : 'ws',
 146     HOSTNAME: config.get<string>('webserver.hostname'),
 147     PORT: config.get<number>('webserver.port'),
 148     URL: '',
 149     HOST: ''
 150   },
 151   TRUST_PROXY: config.get<string[]>('trust_proxy'),
 152   LOG: {
 153     LEVEL: config.get<string>('log.level')
 154   },
 155   ADMIN: {
 156     get EMAIL () { return config.get<string>('admin.email') }
 157   },
 158   SIGNUP: {
 159     get ENABLED () { return config.get<boolean>('signup.enabled') },
 160     get LIMIT () { return config.get<number>('signup.limit') },
 161     FILTERS: {
 162       CIDR: {
 163         get WHITELIST () { return config.get<string[]>('signup.filters.cidr.whitelist') },
 164         get BLACKLIST () { return config.get<string[]>('signup.filters.cidr.blacklist') }
 165       }
 166     }
 167   },
 168   USER: {
 169     get VIDEO_QUOTA () { return config.get<number>('user.video_quota') }
 170   },
 171   TRANSCODING: {
 172     get ENABLED () { return config.get<boolean>('transcoding.enabled') },
 173     get THREADS () { return config.get<number>('transcoding.threads') },
 174     RESOLUTIONS: {
 175       get '240p' () { return config.get<boolean>('transcoding.resolutions.240p') },
 176       get '360p' () { return config.get<boolean>('transcoding.resolutions.360p') },
 177       get '480p' () { return config.get<boolean>('transcoding.resolutions.480p') },
 178       get '720p' () { return config.get<boolean>('transcoding.resolutions.720p') },
 179       get '1080p' () { return config.get<boolean>('transcoding.resolutions.1080p') }
 180     }
 181   },
 182   CACHE: {
 183     PREVIEWS: {
 184       get SIZE () { return config.get<number>('cache.previews.size') }
 185     }
 186   },
 187   INSTANCE: {
 188     get NAME () { return config.get<string>('instance.name') },
 189     get SHORT_DESCRIPTION () { return config.get<string>('instance.short_description') },
 190     get DESCRIPTION () { return config.get<string>('instance.description') },
 191     get TERMS () { return config.get<string>('instance.terms') },
 192     get DEFAULT_CLIENT_ROUTE () { return config.get<string>('instance.default_client_route') },
 193     get DEFAULT_NSFW_POLICY () { return config.get<NSFWPolicyType>('instance.default_nsfw_policy') },
 194     CUSTOMIZATIONS: {
 195       get JAVASCRIPT () { return config.get<string>('instance.customizations.javascript') },
 196       get CSS () { return config.get<string>('instance.customizations.css') }
 197     },
 198     get ROBOTS () { return config.get<string>('instance.robots') }
 199   },
 200   SERVICES: {
 201     TWITTER: {
 202       get USERNAME () { return config.get<string>('services.twitter.username') },
 203       get WHITELISTED () { return config.get<boolean>('services.twitter.whitelisted') }
 204     }
 205   }
 206 }
 207
 208 // ---------------------------------------------------------------------------
 209
 210 const CONSTRAINTS_FIELDS = {
 211   USERS: {
 212     NAME: { min: 3, max: 120 }, // Length
 213     DESCRIPTION: { min: 3, max: 250 }, // Length
 214     USERNAME: { min: 3, max: 20 }, // Length
 215     PASSWORD: { min: 6, max: 255 }, // Length
 216     VIDEO_QUOTA: { min: -1 }
 217   },
 218   VIDEO_ABUSES: {
 219     REASON: { min: 2, max: 300 } // Length
 220   },
 221   VIDEO_CHANNELS: {
 222     NAME: { min: 3, max: 120 }, // Length
 223     DESCRIPTION: { min: 3, max: 500 }, // Length
 224     SUPPORT: { min: 3, max: 500 }, // Length
 225     URL: { min: 3, max: 2000 } // Length
 226   },
 227   VIDEOS: {
 228     NAME: { min: 3, max: 120 }, // Length
 229     LANGUAGE: { min: 1, max: 10 }, // Length
 230     TRUNCATED_DESCRIPTION: { min: 3, max: 250 }, // Length
 231     DESCRIPTION: { min: 3, max: 10000 }, // Length
 232     SUPPORT: { min: 3, max: 500 }, // Length
 233     IMAGE: {
 234       EXTNAME: [ '.jpg', '.jpeg' ],
 235       FILE_SIZE: {
 236         max: 2 * 1024 * 1024 // 2MB
 237       }
 238     },
 239     EXTNAME: [ '.mp4', '.ogv', '.webm' ],
 240     INFO_HASH: { min: 40, max: 40 }, // Length, info hash is 20 bytes length but we represent it in hexadecimal so 20 * 2
 241     DURATION: { min: 1 }, // Number
 242     TAGS: { min: 0, max: 5 }, // Number of total tags
 243     TAG: { min: 2, max: 30 }, // Length
 244     THUMBNAIL: { min: 2, max: 30 },
 245     THUMBNAIL_DATA: { min: 0, max: 20000 }, // Bytes
 246     VIEWS: { min: 0 },
 247     LIKES: { min: 0 },
 248     DISLIKES: { min: 0 },
 249     FILE_SIZE: { min: 10 },
 250     URL: { min: 3, max: 2000 } // Length
 251   },
 252   ACTORS: {
 253     PUBLIC_KEY: { min: 10, max: 5000 }, // Length
 254     PRIVATE_KEY: { min: 10, max: 5000 }, // Length
 255     URL: { min: 3, max: 2000 }, // Length
 256     AVATAR: {
 257       EXTNAME: [ '.png', '.jpeg', '.jpg' ],
 258       FILE_SIZE: {
 259         max: 2 * 1024 * 1024 // 2MB
 260       }
 261     }
 262   },
 263   VIDEO_EVENTS: {
 264     COUNT: { min: 0 }
 265   },
 266   VIDEO_COMMENTS: {
 267     TEXT: { min: 1, max: 3000 }, // Length
 268     URL: { min: 3, max: 2000 } // Length
 269   },
 270   VIDEO_SHARE: {
 271     URL: { min: 3, max: 2000 } // Length
 272   }
 273 }
 274
 275 const RATES_LIMIT = {
 276   LOGIN: {
 277     WINDOW_MS: 5 * 60 * 1000, // 5 minutes
 278     MAX: 15 // 15 attempts
 279   }
 280 }
 281
 282 let VIDEO_VIEW_LIFETIME = 60000 * 60 // 1 hour
 283 const VIDEO_TRANSCODING_FPS = {
 284   MIN: 10,
 285   AVERAGE: 30,
 286   MAX: 60,
 287   KEEP_ORIGIN_FPS_RESOLUTION_MIN: 720 // We keep the original FPS on high resolutions (720 minimum)
 288 }
 289
 290 const VIDEO_RATE_TYPES: { [ id: string ]: VideoRateType } = {
 291   LIKE: 'like',
 292   DISLIKE: 'dislike'
 293 }
 294
 295 const VIDEO_CATEGORIES = {
 296   1: 'Music',
 297   2: 'Films',
 298   3: 'Vehicles',
 299   4: 'Art',
 300   5: 'Sports',
 301   6: 'Travels',
 302   7: 'Gaming',
 303   8: 'People',
 304   9: 'Comedy',
 305   10: 'Entertainment',
 306   11: 'News',
 307   12: 'How To',
 308   13: 'Education',
 309   14: 'Activism',
 310   15: 'Science & Technology',
 311   16: 'Animals',
 312   17: 'Kids',
 313   18: 'Food'
 314 }
 315
 316 // See https://creativecommons.org/licenses/?lang=en
 317 const VIDEO_LICENCES = {
 318   1: 'Attribution',
 319   2: 'Attribution - Share Alike',
 320   3: 'Attribution - No Derivatives',
 321   4: 'Attribution - Non Commercial',
 322   5: 'Attribution - Non Commercial - Share Alike',
 323   6: 'Attribution - Non Commercial - No Derivatives',
 324   7: 'Public Domain Dedication'
 325 }
 326
 327 const VIDEO_LANGUAGES = buildLanguages()
 328
 329 const VIDEO_PRIVACIES = {
 330   [VideoPrivacy.PUBLIC]: 'Public',
 331   [VideoPrivacy.UNLISTED]: 'Unlisted',
 332   [VideoPrivacy.PRIVATE]: 'Private'
 333 }
 334
 335 const VIDEO_STATES = {
 336   [VideoState.PUBLISHED]: 'Published',
 337   [VideoState.TO_TRANSCODE]: 'To transcode'
 338 }
 339
 340 const VIDEO_MIMETYPE_EXT = {
 341   'video/webm': '.webm',
 342   'video/ogg': '.ogv',
 343   'video/mp4': '.mp4'
 344 }
 345 const VIDEO_EXT_MIMETYPE = invert(VIDEO_MIMETYPE_EXT)
 346
 347 const IMAGE_MIMETYPE_EXT = {
 348   'image/png': '.png',
 349   'image/jpg': '.jpg',
 350   'image/jpeg': '.jpg'
 351 }
 352
 353 // ---------------------------------------------------------------------------
 354
 355 const SERVER_ACTOR_NAME = 'peertube'
 356
 357 const ACTIVITY_PUB = {
 358   POTENTIAL_ACCEPT_HEADERS: [
 359     'application/activity+json',
 360     'application/ld+json',
 361     'application/ld+json; profile="https://www.w3.org/ns/activitystreams"'
 362   ],
 363   ACCEPT_HEADER: 'application/activity+json, application/ld+json',
 364   PUBLIC: 'https://www.w3.org/ns/activitystreams#Public',
 365   COLLECTION_ITEMS_PER_PAGE: 10,
 366   FETCH_PAGE_LIMIT: 100,
 367   URL_MIME_TYPES: {
 368     VIDEO: Object.keys(VIDEO_MIMETYPE_EXT),
 369     TORRENT: [ 'application/x-bittorrent' ],
 370     MAGNET: [ 'application/x-bittorrent;x-scheme-handler/magnet' ]
 371   },
 372   MAX_RECURSION_COMMENTS: 100,
 373   ACTOR_REFRESH_INTERVAL: 3600 * 24 * 1000 // 1 day
 374 }
 375
 376 const ACTIVITY_PUB_ACTOR_TYPES: { [ id: string ]: ActivityPubActorType } = {
 377   GROUP: 'Group',
 378   PERSON: 'Person',
 379   APPLICATION: 'Application'
 380 }
 381
 382 // ---------------------------------------------------------------------------
 383
 384 const PRIVATE_RSA_KEY_SIZE = 2048
 385
 386 // Password encryption
 387 const BCRYPT_SALT_SIZE = 10
 388
 389 const USER_PASSWORD_RESET_LIFETIME = 60000 * 5 // 5 minutes
 390
 391 const NSFW_POLICY_TYPES: { [ id: string]: NSFWPolicyType } = {
 392   DO_NOT_LIST: 'do_not_list',
 393   BLUR: 'blur',
 394   DISPLAY: 'display'
 395 }
 396
 397 // ---------------------------------------------------------------------------
 398
 399 // Express static paths (router)
 400 const STATIC_PATHS = {
 401   PREVIEWS: '/static/previews/',
 402   THUMBNAILS: '/static/thumbnails/',
 403   TORRENTS: '/static/torrents/',
 404   WEBSEED: '/static/webseed/',
 405   AVATARS: '/static/avatars/'
 406 }
 407 const STATIC_DOWNLOAD_PATHS = {
 408   TORRENTS: '/download/torrents/',
 409   VIDEOS: '/download/videos/'
 410 }
 411
 412 // Cache control
 413 let STATIC_MAX_AGE = '30d'
 414
 415 // Videos thumbnail size
 416 const THUMBNAILS_SIZE = {
 417   width: 200,
 418   height: 110
 419 }
 420 const PREVIEWS_SIZE = {
 421   width: 560,
 422   height: 315
 423 }
 424 const AVATARS_SIZE = {
 425   width: 120,
 426   height: 120
 427 }
 428
 429 const EMBED_SIZE = {
 430   width: 560,
 431   height: 315
 432 }
 433
 434 // Sub folders of cache directory
 435 const CACHE = {
 436   DIRECTORIES: {
 437     PREVIEWS: join(CONFIG.STORAGE.CACHE_DIR, 'previews')
 438   }
 439 }
 440
 441 const ACCEPT_HEADERS = [ 'html', 'application/json' ].concat(ACTIVITY_PUB.POTENTIAL_ACCEPT_HEADERS)
 442
 443 // ---------------------------------------------------------------------------
 444
 445 const OPENGRAPH_AND_OEMBED_COMMENT = '<!-- open graph and oembed tags -->'
 446
 447 // ---------------------------------------------------------------------------
 448
 449 const FEEDS = {
 450   COUNT: 20
 451 }
 452
 453 // ---------------------------------------------------------------------------
 454
 455 const TRACKER_RATE_LIMITS = {
 456   INTERVAL: 60000 * 5, // 5 minutes
 457   ANNOUNCES_PER_IP_PER_INFOHASH: 15, // maximum announces per torrent in the interval
 458   ANNOUNCES_PER_IP: 30 // maximum announces for all our torrents in the interval
 459 }
 460
 461 // ---------------------------------------------------------------------------
 462
 463 // Special constants for a test instance
 464 if (isTestInstance() === true) {
 465   ACTOR_FOLLOW_SCORE.BASE = 20
 466
 467   REMOTE_SCHEME.HTTP = 'http'
 468   REMOTE_SCHEME.WS = 'ws'
 469
 470   STATIC_MAX_AGE = '0'
 471
 472   ACTIVITY_PUB.COLLECTION_ITEMS_PER_PAGE = 2
 473   ACTIVITY_PUB.ACTOR_REFRESH_INTERVAL = 10 * 1000 // 10 seconds
 474
 475   CONSTRAINTS_FIELDS.ACTORS.AVATAR.FILE_SIZE.max = 100 * 1024 // 100KB
 476
 477   SCHEDULER_INTERVALS_MS.badActorFollow = 10000
 478   SCHEDULER_INTERVALS_MS.removeOldJobs = 10000
 479   SCHEDULER_INTERVALS_MS.updateVideos = 5000
 480
 481   VIDEO_VIEW_LIFETIME = 1000 // 1 second
 482
 483   JOB_ATTEMPTS['email'] = 1
 484 }
 485
 486 updateWebserverConfig()
 487
 488 // ---------------------------------------------------------------------------
 489
 490 export {
 491   API_VERSION,
 492   AVATARS_SIZE,
 493   ACCEPT_HEADERS,
 494   BCRYPT_SALT_SIZE,
 495   TRACKER_RATE_LIMITS,
 496   CACHE,
 497   CONFIG,
 498   CONSTRAINTS_FIELDS,
 499   EMBED_SIZE,
 500   JOB_CONCURRENCY,
 501   JOB_ATTEMPTS,
 502   LAST_MIGRATION_VERSION,
 503   OAUTH_LIFETIME,
 504   OPENGRAPH_AND_OEMBED_COMMENT,
 505   BROADCAST_CONCURRENCY,
 506   PAGINATION_COUNT_DEFAULT,
 507   ACTOR_FOLLOW_SCORE,
 508   PREVIEWS_SIZE,
 509   REMOTE_SCHEME,
 510   FOLLOW_STATES,
 511   SERVER_ACTOR_NAME,
 512   PRIVATE_RSA_KEY_SIZE,
 513   ROUTE_CACHE_LIFETIME,
 514   SORTABLE_COLUMNS,
 515   FEEDS,
 516   NSFW_POLICY_TYPES,
 517   STATIC_MAX_AGE,
 518   STATIC_PATHS,
 519   ACTIVITY_PUB,
 520   ACTIVITY_PUB_ACTOR_TYPES,
 521   THUMBNAILS_SIZE,
 522   VIDEO_CATEGORIES,
 523   VIDEO_LANGUAGES,
 524   VIDEO_PRIVACIES,
 525   VIDEO_LICENCES,
 526   VIDEO_STATES,
 527   VIDEO_RATE_TYPES,
 528   VIDEO_MIMETYPE_EXT,
 529   VIDEO_TRANSCODING_FPS,
 530   JOB_REQUEST_TIMEOUT,
 531   JOB_REQUEST_TTL,
 532   USER_PASSWORD_RESET_LIFETIME,
 533   IMAGE_MIMETYPE_EXT,
 534   SCHEDULER_INTERVALS_MS,
 535   STATIC_DOWNLOAD_PATHS,
 536   RATES_LIMIT,
 537   VIDEO_EXT_MIMETYPE,
 538   JOB_COMPLETED_LIFETIME,
 539   VIDEO_VIEW_LIFETIME,
 540   buildLanguages
 541 }
 542
 543 // ---------------------------------------------------------------------------
 544
 545 function getLocalConfigFilePath () {
 546   const configSources = config.util.getConfigSources()
 547   if (configSources.length === 0) throw new Error('Invalid config source.')
 548
 549   let filename = 'local'
 550   if (process.env.NODE_ENV) filename += `-${process.env.NODE_ENV}`
 551   if (process.env.NODE_APP_INSTANCE) filename += `-${process.env.NODE_APP_INSTANCE}`
 552
 553   return join(dirname(configSources[ 0 ].name), filename + '.json')
 554 }
 555
 556 function updateWebserverConfig () {
 557   CONFIG.WEBSERVER.URL = sanitizeUrl(CONFIG.WEBSERVER.SCHEME + '://' + CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WEBSERVER.PORT)
 558   CONFIG.WEBSERVER.HOST = sanitizeHost(CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WEBSERVER.PORT, REMOTE_SCHEME.HTTP)
 559 }
 560
 561 function buildLanguages () {
 562   const iso639 = require('iso-639-3')
 563
 564   const languages: { [ id: string ]: string } = {}
 565
 566   const signLanguages = [
 567     'sgn', // Sign languages (macro language)
 568     'ase', // American
 569     'sdl', // Arabian
 570     'bfi', // British
 571     'bzs', // Brazilian
 572     'csl', // Chinese
 573     'cse', // Czech
 574     'dsl', // Danish
 575     'fsl', // French
 576     'gsg', // German
 577     'pks', // Pakistan
 578     'jsl', // Japanese
 579     'sfs', // South African
 580     'swl', // Swedish
 581     'rsl' // Russian
 582   ]
 583
 584   // Only add ISO639-1 languages and some sign languages (ISO639-3)
 585   iso639
 586     .filter(l => {
 587       return (l.iso6391 !== null && l.type === 'living') ||
 588         signLanguages.indexOf(l.iso6393) !== -1
 589     })
 590     .forEach(l => languages[l.iso6391 || l.iso6393] = l.name)
 591
 592   return languages
 593 }
 594
 595 export function reloadConfig () {
 596
 597   function directory () {
 598     if (process.env.NODE_CONFIG_DIR) {
 599       return process.env.NODE_CONFIG_DIR
 600     }
 601
 602     return join(root(), 'config')
 603   }
 604
 605   function purge () {
 606     for (const fileName in require.cache) {
 607       if (-1 === fileName.indexOf(directory())) {
 608         continue
 609       }
 610
 611       delete require.cache[fileName]
 612     }
 613
 614     delete require.cache[require.resolve('config')]
 615   }
 616
 617   purge()
 618
 619   config = require('config')
 620
 621   updateWebserverConfig()
 622 }