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 = 235
  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   VIDEOS_SEARCH: [ 'match', 'name', 'duration', 'createdAt', 'publishedAt', 'views', 'likes' ]
  41 }
  42
  43 const OAUTH_LIFETIME = {
  44   ACCESS_TOKEN: 3600 * 24, // 1 day, for upload
  45   REFRESH_TOKEN: 1209600 // 2 weeks
  46 }
  47
  48 const ROUTE_CACHE_LIFETIME = {
  49   FEEDS: 1000 * 60 * 15, // 15 minutes
  50   ACTIVITY_PUB: {
  51     VIDEOS: 1000 // 1 second, cache concurrent requests after a broadcast for example
  52   }
  53 }
  54
  55 // ---------------------------------------------------------------------------
  56
  57 // Number of points we add/remove after a successful/bad request
  58 const ACTOR_FOLLOW_SCORE = {
  59   PENALTY: -10,
  60   BONUS: 10,
  61   BASE: 1000,
  62   MAX: 10000
  63 }
  64
  65 const FOLLOW_STATES: { [ id: string ]: FollowState } = {
  66   PENDING: 'pending',
  67   ACCEPTED: 'accepted'
  68 }
  69
  70 const REMOTE_SCHEME = {
  71   HTTP: 'https',
  72   WS: 'wss'
  73 }
  74
  75 const JOB_ATTEMPTS: { [ id in JobType ]: number } = {
  76   'activitypub-http-broadcast': 5,
  77   'activitypub-http-unicast': 5,
  78   'activitypub-http-fetcher': 5,
  79   'activitypub-follow': 5,
  80   'video-file-import': 1,
  81   'video-file': 1,
  82   'email': 5
  83 }
  84 const JOB_CONCURRENCY: { [ id in JobType ]: number } = {
  85   'activitypub-http-broadcast': 1,
  86   'activitypub-http-unicast': 5,
  87   'activitypub-http-fetcher': 1,
  88   'activitypub-follow': 3,
  89   'video-file-import': 1,
  90   'video-file': 1,
  91   'email': 5
  92 }
  93 const BROADCAST_CONCURRENCY = 10 // How many requests in parallel we do in activitypub-http-broadcast job
  94 const JOB_REQUEST_TIMEOUT = 3000 // 3 seconds
  95 const JOB_REQUEST_TTL = 60000 * 10 // 10 minutes
  96 const JOB_COMPLETED_LIFETIME = 60000 * 60 * 24 * 2 // 2 days
  97
  98 // 1 hour
  99 let SCHEDULER_INTERVALS_MS = {
 100   badActorFollow: 60000 * 60, // 1 hour
 101   removeOldJobs: 60000 * 60, // 1 hour
 102   updateVideos: 60000 // 1 minute
 103 }
 104
 105 // ---------------------------------------------------------------------------
 106
 107 const CONFIG = {
 108   CUSTOM_FILE: getLocalConfigFilePath(),
 109   LISTEN: {
 110     PORT: config.get<number>('listen.port'),
 111     HOSTNAME: config.get<string>('listen.hostname')
 112   },
 113   DATABASE: {
 114     DBNAME: 'peertube' + config.get<string>('database.suffix'),
 115     HOSTNAME: config.get<string>('database.hostname'),
 116     PORT: config.get<number>('database.port'),
 117     USERNAME: config.get<string>('database.username'),
 118     PASSWORD: config.get<string>('database.password')
 119   },
 120   REDIS: {
 121     HOSTNAME: config.has('redis.hostname') ? config.get<string>('redis.hostname') : null,
 122     PORT: config.has('redis.port') ? config.get<number>('redis.port') : null,
 123     SOCKET: config.has('redis.socket') ? config.get<string>('redis.socket') : null,
 124     AUTH: config.has('redis.auth') ? config.get<string>('redis.auth') : null,
 125     DB: config.has('redis.db') ? config.get<number>('redis.db') : null
 126   },
 127   SMTP: {
 128     HOSTNAME: config.get<string>('smtp.hostname'),
 129     PORT: config.get<number>('smtp.port'),
 130     USERNAME: config.get<string>('smtp.username'),
 131     PASSWORD: config.get<string>('smtp.password'),
 132     TLS: config.get<boolean>('smtp.tls'),
 133     DISABLE_STARTTLS: config.get<boolean>('smtp.disable_starttls'),
 134     CA_FILE: config.get<string>('smtp.ca_file'),
 135     FROM_ADDRESS: config.get<string>('smtp.from_address')
 136   },
 137   STORAGE: {
 138     AVATARS_DIR: buildPath(config.get<string>('storage.avatars')),
 139     LOG_DIR: buildPath(config.get<string>('storage.logs')),
 140     VIDEOS_DIR: buildPath(config.get<string>('storage.videos')),
 141     THUMBNAILS_DIR: buildPath(config.get<string>('storage.thumbnails')),
 142     PREVIEWS_DIR: buildPath(config.get<string>('storage.previews')),
 143     CAPTIONS_DIR: buildPath(config.get<string>('storage.captions')),
 144     TORRENTS_DIR: buildPath(config.get<string>('storage.torrents')),
 145     CACHE_DIR: buildPath(config.get<string>('storage.cache'))
 146   },
 147   WEBSERVER: {
 148     SCHEME: config.get<boolean>('webserver.https') === true ? 'https' : 'http',
 149     WS: config.get<boolean>('webserver.https') === true ? 'wss' : 'ws',
 150     HOSTNAME: config.get<string>('webserver.hostname'),
 151     PORT: config.get<number>('webserver.port'),
 152     URL: '',
 153     HOST: ''
 154   },
 155   TRUST_PROXY: config.get<string[]>('trust_proxy'),
 156   LOG: {
 157     LEVEL: config.get<string>('log.level')
 158   },
 159   ADMIN: {
 160     get EMAIL () { return config.get<string>('admin.email') }
 161   },
 162   SIGNUP: {
 163     get ENABLED () { return config.get<boolean>('signup.enabled') },
 164     get LIMIT () { return config.get<number>('signup.limit') },
 165     FILTERS: {
 166       CIDR: {
 167         get WHITELIST () { return config.get<string[]>('signup.filters.cidr.whitelist') },
 168         get BLACKLIST () { return config.get<string[]>('signup.filters.cidr.blacklist') }
 169       }
 170     }
 171   },
 172   USER: {
 173     get VIDEO_QUOTA () { return config.get<number>('user.video_quota') }
 174   },
 175   TRANSCODING: {
 176     get ENABLED () { return config.get<boolean>('transcoding.enabled') },
 177     get THREADS () { return config.get<number>('transcoding.threads') },
 178     RESOLUTIONS: {
 179       get '240p' () { return config.get<boolean>('transcoding.resolutions.240p') },
 180       get '360p' () { return config.get<boolean>('transcoding.resolutions.360p') },
 181       get '480p' () { return config.get<boolean>('transcoding.resolutions.480p') },
 182       get '720p' () { return config.get<boolean>('transcoding.resolutions.720p') },
 183       get '1080p' () { return config.get<boolean>('transcoding.resolutions.1080p') }
 184     }
 185   },
 186   CACHE: {
 187     PREVIEWS: {
 188       get SIZE () { return config.get<number>('cache.previews.size') }
 189     },
 190     VIDEO_CAPTIONS: {
 191       get SIZE () { return config.get<number>('cache.captions.size') }
 192     }
 193   },
 194   INSTANCE: {
 195     get NAME () { return config.get<string>('instance.name') },
 196     get SHORT_DESCRIPTION () { return config.get<string>('instance.short_description') },
 197     get DESCRIPTION () { return config.get<string>('instance.description') },
 198     get TERMS () { return config.get<string>('instance.terms') },
 199     get DEFAULT_CLIENT_ROUTE () { return config.get<string>('instance.default_client_route') },
 200     get DEFAULT_NSFW_POLICY () { return config.get<NSFWPolicyType>('instance.default_nsfw_policy') },
 201     CUSTOMIZATIONS: {
 202       get JAVASCRIPT () { return config.get<string>('instance.customizations.javascript') },
 203       get CSS () { return config.get<string>('instance.customizations.css') }
 204     },
 205     get ROBOTS () { return config.get<string>('instance.robots') }
 206   },
 207   SERVICES: {
 208     TWITTER: {
 209       get USERNAME () { return config.get<string>('services.twitter.username') },
 210       get WHITELISTED () { return config.get<boolean>('services.twitter.whitelisted') }
 211     }
 212   }
 213 }
 214
 215 // ---------------------------------------------------------------------------
 216
 217 const CONSTRAINTS_FIELDS = {
 218   USERS: {
 219     NAME: { min: 3, max: 120 }, // Length
 220     DESCRIPTION: { min: 3, max: 250 }, // Length
 221     USERNAME: { min: 3, max: 20 }, // Length
 222     PASSWORD: { min: 6, max: 255 }, // Length
 223     VIDEO_QUOTA: { min: -1 }
 224   },
 225   VIDEO_ABUSES: {
 226     REASON: { min: 2, max: 300 } // Length
 227   },
 228   VIDEO_CHANNELS: {
 229     NAME: { min: 3, max: 120 }, // Length
 230     DESCRIPTION: { min: 3, max: 500 }, // Length
 231     SUPPORT: { min: 3, max: 500 }, // Length
 232     URL: { min: 3, max: 2000 } // Length
 233   },
 234   VIDEO_CAPTIONS: {
 235     CAPTION_FILE: {
 236       EXTNAME: [ '.vtt', '.srt' ],
 237       FILE_SIZE: {
 238         max: 2 * 1024 * 1024 // 2MB
 239       }
 240     }
 241   },
 242   VIDEOS: {
 243     NAME: { min: 3, max: 120 }, // Length
 244     LANGUAGE: { min: 1, max: 10 }, // Length
 245     TRUNCATED_DESCRIPTION: { min: 3, max: 250 }, // Length
 246     DESCRIPTION: { min: 3, max: 10000 }, // Length
 247     SUPPORT: { min: 3, max: 500 }, // Length
 248     IMAGE: {
 249       EXTNAME: [ '.jpg', '.jpeg' ],
 250       FILE_SIZE: {
 251         max: 2 * 1024 * 1024 // 2MB
 252       }
 253     },
 254     EXTNAME: [ '.mp4', '.ogv', '.webm' ],
 255     INFO_HASH: { min: 40, max: 40 }, // Length, info hash is 20 bytes length but we represent it in hexadecimal so 20 * 2
 256     DURATION: { min: 1 }, // Number
 257     TAGS: { min: 0, max: 5 }, // Number of total tags
 258     TAG: { min: 2, max: 30 }, // Length
 259     THUMBNAIL: { min: 2, max: 30 },
 260     THUMBNAIL_DATA: { min: 0, max: 20000 }, // Bytes
 261     VIEWS: { min: 0 },
 262     LIKES: { min: 0 },
 263     DISLIKES: { min: 0 },
 264     FILE_SIZE: { min: 10 },
 265     URL: { min: 3, max: 2000 } // Length
 266   },
 267   ACTORS: {
 268     PUBLIC_KEY: { min: 10, max: 5000 }, // Length
 269     PRIVATE_KEY: { min: 10, max: 5000 }, // Length
 270     URL: { min: 3, max: 2000 }, // Length
 271     AVATAR: {
 272       EXTNAME: [ '.png', '.jpeg', '.jpg' ],
 273       FILE_SIZE: {
 274         max: 2 * 1024 * 1024 // 2MB
 275       }
 276     }
 277   },
 278   VIDEO_EVENTS: {
 279     COUNT: { min: 0 }
 280   },
 281   VIDEO_COMMENTS: {
 282     TEXT: { min: 1, max: 3000 }, // Length
 283     URL: { min: 3, max: 2000 } // Length
 284   },
 285   VIDEO_SHARE: {
 286     URL: { min: 3, max: 2000 } // Length
 287   }
 288 }
 289
 290 const RATES_LIMIT = {
 291   LOGIN: {
 292     WINDOW_MS: 5 * 60 * 1000, // 5 minutes
 293     MAX: 15 // 15 attempts
 294   }
 295 }
 296
 297 let VIDEO_VIEW_LIFETIME = 60000 * 60 // 1 hour
 298 const VIDEO_TRANSCODING_FPS = {
 299   MIN: 10,
 300   AVERAGE: 30,
 301   MAX: 60,
 302   KEEP_ORIGIN_FPS_RESOLUTION_MIN: 720 // We keep the original FPS on high resolutions (720 minimum)
 303 }
 304
 305 const VIDEO_RATE_TYPES: { [ id: string ]: VideoRateType } = {
 306   LIKE: 'like',
 307   DISLIKE: 'dislike'
 308 }
 309
 310 const VIDEO_CATEGORIES = {
 311   1: 'Music',
 312   2: 'Films',
 313   3: 'Vehicles',
 314   4: 'Art',
 315   5: 'Sports',
 316   6: 'Travels',
 317   7: 'Gaming',
 318   8: 'People',
 319   9: 'Comedy',
 320   10: 'Entertainment',
 321   11: 'News',
 322   12: 'How To',
 323   13: 'Education',
 324   14: 'Activism',
 325   15: 'Science & Technology',
 326   16: 'Animals',
 327   17: 'Kids',
 328   18: 'Food'
 329 }
 330
 331 // See https://creativecommons.org/licenses/?lang=en
 332 const VIDEO_LICENCES = {
 333   1: 'Attribution',
 334   2: 'Attribution - Share Alike',
 335   3: 'Attribution - No Derivatives',
 336   4: 'Attribution - Non Commercial',
 337   5: 'Attribution - Non Commercial - Share Alike',
 338   6: 'Attribution - Non Commercial - No Derivatives',
 339   7: 'Public Domain Dedication'
 340 }
 341
 342 const VIDEO_LANGUAGES = buildLanguages()
 343
 344 const VIDEO_PRIVACIES = {
 345   [VideoPrivacy.PUBLIC]: 'Public',
 346   [VideoPrivacy.UNLISTED]: 'Unlisted',
 347   [VideoPrivacy.PRIVATE]: 'Private'
 348 }
 349
 350 const VIDEO_STATES = {
 351   [VideoState.PUBLISHED]: 'Published',
 352   [VideoState.TO_TRANSCODE]: 'To transcode'
 353 }
 354
 355 const VIDEO_MIMETYPE_EXT = {
 356   'video/webm': '.webm',
 357   'video/ogg': '.ogv',
 358   'video/mp4': '.mp4'
 359 }
 360 const VIDEO_EXT_MIMETYPE = invert(VIDEO_MIMETYPE_EXT)
 361
 362 const IMAGE_MIMETYPE_EXT = {
 363   'image/png': '.png',
 364   'image/jpg': '.jpg',
 365   'image/jpeg': '.jpg'
 366 }
 367
 368 const VIDEO_CAPTIONS_MIMETYPE_EXT = {
 369   'text/vtt': '.vtt',
 370   'application/x-subrip': '.srt'
 371 }
 372
 373 // ---------------------------------------------------------------------------
 374
 375 const SERVER_ACTOR_NAME = 'peertube'
 376
 377 const ACTIVITY_PUB = {
 378   POTENTIAL_ACCEPT_HEADERS: [
 379     'application/activity+json',
 380     'application/ld+json',
 381     'application/ld+json; profile="https://www.w3.org/ns/activitystreams"'
 382   ],
 383   ACCEPT_HEADER: 'application/activity+json, application/ld+json',
 384   PUBLIC: 'https://www.w3.org/ns/activitystreams#Public',
 385   COLLECTION_ITEMS_PER_PAGE: 10,
 386   FETCH_PAGE_LIMIT: 100,
 387   URL_MIME_TYPES: {
 388     VIDEO: Object.keys(VIDEO_MIMETYPE_EXT),
 389     TORRENT: [ 'application/x-bittorrent' ],
 390     MAGNET: [ 'application/x-bittorrent;x-scheme-handler/magnet' ]
 391   },
 392   MAX_RECURSION_COMMENTS: 100,
 393   ACTOR_REFRESH_INTERVAL: 3600 * 24 * 1000 // 1 day
 394 }
 395
 396 const ACTIVITY_PUB_ACTOR_TYPES: { [ id: string ]: ActivityPubActorType } = {
 397   GROUP: 'Group',
 398   PERSON: 'Person',
 399   APPLICATION: 'Application'
 400 }
 401
 402 // ---------------------------------------------------------------------------
 403
 404 const PRIVATE_RSA_KEY_SIZE = 2048
 405
 406 // Password encryption
 407 const BCRYPT_SALT_SIZE = 10
 408
 409 const USER_PASSWORD_RESET_LIFETIME = 60000 * 5 // 5 minutes
 410
 411 const NSFW_POLICY_TYPES: { [ id: string]: NSFWPolicyType } = {
 412   DO_NOT_LIST: 'do_not_list',
 413   BLUR: 'blur',
 414   DISPLAY: 'display'
 415 }
 416
 417 // ---------------------------------------------------------------------------
 418
 419 // Express static paths (router)
 420 const STATIC_PATHS = {
 421   PREVIEWS: '/static/previews/',
 422   THUMBNAILS: '/static/thumbnails/',
 423   TORRENTS: '/static/torrents/',
 424   WEBSEED: '/static/webseed/',
 425   AVATARS: '/static/avatars/',
 426   VIDEO_CAPTIONS: '/static/video-captions/'
 427 }
 428 const STATIC_DOWNLOAD_PATHS = {
 429   TORRENTS: '/download/torrents/',
 430   VIDEOS: '/download/videos/'
 431 }
 432
 433 // Cache control
 434 let STATIC_MAX_AGE = '2h'
 435
 436 // Videos thumbnail size
 437 const THUMBNAILS_SIZE = {
 438   width: 200,
 439   height: 110
 440 }
 441 const PREVIEWS_SIZE = {
 442   width: 560,
 443   height: 315
 444 }
 445 const AVATARS_SIZE = {
 446   width: 120,
 447   height: 120
 448 }
 449
 450 const EMBED_SIZE = {
 451   width: 560,
 452   height: 315
 453 }
 454
 455 // Sub folders of cache directory
 456 const CACHE = {
 457   PREVIEWS: {
 458     DIRECTORY: join(CONFIG.STORAGE.CACHE_DIR, 'previews'),
 459     MAX_AGE: 1000 * 3600 * 3 // 3 hours
 460   },
 461   VIDEO_CAPTIONS: {
 462     DIRECTORY: join(CONFIG.STORAGE.CACHE_DIR, 'video-captions'),
 463     MAX_AGE: 1000 * 3600 * 3 // 3 hours
 464   }
 465 }
 466
 467 const ACCEPT_HEADERS = [ 'html', 'application/json' ].concat(ACTIVITY_PUB.POTENTIAL_ACCEPT_HEADERS)
 468
 469 // ---------------------------------------------------------------------------
 470
 471 const CUSTOM_HTML_TAG_COMMENTS = {
 472   TITLE: '<!-- title tag -->',
 473   DESCRIPTION: '<!-- description tag -->',
 474   CUSTOM_CSS: '<!-- custom css tag -->',
 475   OPENGRAPH_AND_OEMBED: '<!-- open graph and oembed tags -->'
 476 }
 477
 478 // ---------------------------------------------------------------------------
 479
 480 const FEEDS = {
 481   COUNT: 20
 482 }
 483
 484 // ---------------------------------------------------------------------------
 485
 486 const TRACKER_RATE_LIMITS = {
 487   INTERVAL: 60000 * 5, // 5 minutes
 488   ANNOUNCES_PER_IP_PER_INFOHASH: 15, // maximum announces per torrent in the interval
 489   ANNOUNCES_PER_IP: 30 // maximum announces for all our torrents in the interval
 490 }
 491
 492 // ---------------------------------------------------------------------------
 493
 494 // Special constants for a test instance
 495 if (isTestInstance() === true) {
 496   ACTOR_FOLLOW_SCORE.BASE = 20
 497
 498   REMOTE_SCHEME.HTTP = 'http'
 499   REMOTE_SCHEME.WS = 'ws'
 500
 501   STATIC_MAX_AGE = '0'
 502
 503   ACTIVITY_PUB.COLLECTION_ITEMS_PER_PAGE = 2
 504   ACTIVITY_PUB.ACTOR_REFRESH_INTERVAL = 10 * 1000 // 10 seconds
 505
 506   CONSTRAINTS_FIELDS.ACTORS.AVATAR.FILE_SIZE.max = 100 * 1024 // 100KB
 507
 508   SCHEDULER_INTERVALS_MS.badActorFollow = 10000
 509   SCHEDULER_INTERVALS_MS.removeOldJobs = 10000
 510   SCHEDULER_INTERVALS_MS.updateVideos = 5000
 511
 512   VIDEO_VIEW_LIFETIME = 1000 // 1 second
 513
 514   JOB_ATTEMPTS['email'] = 1
 515
 516   CACHE.VIDEO_CAPTIONS.MAX_AGE = 3000
 517 }
 518
 519 updateWebserverConfig()
 520
 521 // ---------------------------------------------------------------------------
 522
 523 export {
 524   API_VERSION,
 525   VIDEO_CAPTIONS_MIMETYPE_EXT,
 526   AVATARS_SIZE,
 527   ACCEPT_HEADERS,
 528   BCRYPT_SALT_SIZE,
 529   TRACKER_RATE_LIMITS,
 530   CACHE,
 531   CONFIG,
 532   CONSTRAINTS_FIELDS,
 533   EMBED_SIZE,
 534   JOB_CONCURRENCY,
 535   JOB_ATTEMPTS,
 536   LAST_MIGRATION_VERSION,
 537   OAUTH_LIFETIME,
 538   CUSTOM_HTML_TAG_COMMENTS,
 539   BROADCAST_CONCURRENCY,
 540   PAGINATION_COUNT_DEFAULT,
 541   ACTOR_FOLLOW_SCORE,
 542   PREVIEWS_SIZE,
 543   REMOTE_SCHEME,
 544   FOLLOW_STATES,
 545   SERVER_ACTOR_NAME,
 546   PRIVATE_RSA_KEY_SIZE,
 547   ROUTE_CACHE_LIFETIME,
 548   SORTABLE_COLUMNS,
 549   FEEDS,
 550   NSFW_POLICY_TYPES,
 551   STATIC_MAX_AGE,
 552   STATIC_PATHS,
 553   ACTIVITY_PUB,
 554   ACTIVITY_PUB_ACTOR_TYPES,
 555   THUMBNAILS_SIZE,
 556   VIDEO_CATEGORIES,
 557   VIDEO_LANGUAGES,
 558   VIDEO_PRIVACIES,
 559   VIDEO_LICENCES,
 560   VIDEO_STATES,
 561   VIDEO_RATE_TYPES,
 562   VIDEO_MIMETYPE_EXT,
 563   VIDEO_TRANSCODING_FPS,
 564   JOB_REQUEST_TIMEOUT,
 565   JOB_REQUEST_TTL,
 566   USER_PASSWORD_RESET_LIFETIME,
 567   IMAGE_MIMETYPE_EXT,
 568   SCHEDULER_INTERVALS_MS,
 569   STATIC_DOWNLOAD_PATHS,
 570   RATES_LIMIT,
 571   VIDEO_EXT_MIMETYPE,
 572   JOB_COMPLETED_LIFETIME,
 573   VIDEO_VIEW_LIFETIME,
 574   buildLanguages
 575 }
 576
 577 // ---------------------------------------------------------------------------
 578
 579 function getLocalConfigFilePath () {
 580   const configSources = config.util.getConfigSources()
 581   if (configSources.length === 0) throw new Error('Invalid config source.')
 582
 583   let filename = 'local'
 584   if (process.env.NODE_ENV) filename += `-${process.env.NODE_ENV}`
 585   if (process.env.NODE_APP_INSTANCE) filename += `-${process.env.NODE_APP_INSTANCE}`
 586
 587   return join(dirname(configSources[ 0 ].name), filename + '.json')
 588 }
 589
 590 function updateWebserverConfig () {
 591   CONFIG.WEBSERVER.URL = sanitizeUrl(CONFIG.WEBSERVER.SCHEME + '://' + CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WEBSERVER.PORT)
 592   CONFIG.WEBSERVER.HOST = sanitizeHost(CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WEBSERVER.PORT, REMOTE_SCHEME.HTTP)
 593 }
 594
 595 function buildLanguages () {
 596   const iso639 = require('iso-639-3')
 597
 598   const languages: { [ id: string ]: string } = {}
 599
 600   const additionalLanguages = {
 601     'sgn': true, // Sign languages (macro language)
 602     'ase': true, // American sign language
 603     'sdl': true, // Arabian sign language
 604     'bfi': true, // British sign language
 605     'bzs': true, // Brazilian sign language
 606     'csl': true, // Chinese sign language
 607     'cse': true, // Czech sign language
 608     'dsl': true, // Danish sign language
 609     'fsl': true, // French sign language
 610     'gsg': true, // German sign language
 611     'pks': true, // Pakistan sign language
 612     'jsl': true, // Japanese sign language
 613     'sfs': true, // South African sign language
 614     'swl': true, // Swedish sign language
 615     'rsl': true, // Russian sign language: true
 616
 617     'epo': true, // Esperanto
 618     'tlh': true, // Klingon
 619     'jbo': true, // Lojban
 620     'avk': true // Kotava
 621   }
 622
 623   // Only add ISO639-1 languages and some sign languages (ISO639-3)
 624   iso639
 625     .filter(l => {
 626       return (l.iso6391 !== null && l.type === 'living') ||
 627         additionalLanguages[l.iso6393] === true
 628     })
 629     .forEach(l => languages[l.iso6391 || l.iso6393] = l.name)
 630
 631   return languages
 632 }
 633
 634 export function reloadConfig () {
 635
 636   function directory () {
 637     if (process.env.NODE_CONFIG_DIR) {
 638       return process.env.NODE_CONFIG_DIR
 639     }
 640
 641     return join(root(), 'config')
 642   }
 643
 644   function purge () {
 645     for (const fileName in require.cache) {
 646       if (-1 === fileName.indexOf(directory())) {
 647         continue
 648       }
 649
 650       delete require.cache[fileName]
 651     }
 652
 653     delete require.cache[require.resolve('config')]
 654   }
 655
 656   purge()
 657
 658   config = require('config')
 659
 660   updateWebserverConfig()
 661 }