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 import { VideoImportState } from '../../shared/models/videos/video-import-state.enum'
  12
  13 // Use a variable to reload the configuration if we need
  14 let config: IConfig = require('config')
  15
  16 // ---------------------------------------------------------------------------
  17
  18 const LAST_MIGRATION_VERSION = 240
  19
  20 // ---------------------------------------------------------------------------
  21
  22 // API version
  23 const API_VERSION = 'v1'
  24
  25 const PAGINATION = {
  26   COUNT: {
  27     DEFAULT: 15,
  28     MAX: 100
  29   }
  30 }
  31
  32 // Sortable columns per schema
  33 const SORTABLE_COLUMNS = {
  34   USERS: [ 'id', 'username', 'createdAt' ],
  35   ACCOUNTS: [ 'createdAt' ],
  36   JOBS: [ 'createdAt' ],
  37   VIDEO_ABUSES: [ 'id', 'createdAt' ],
  38   VIDEO_CHANNELS: [ 'id', 'name', 'updatedAt', 'createdAt' ],
  39   VIDEOS: [ 'name', 'duration', 'createdAt', 'publishedAt', 'views', 'likes' ],
  40   VIDEO_IMPORTS: [ 'createdAt' ],
  41   VIDEO_COMMENT_THREADS: [ 'createdAt' ],
  42   BLACKLISTS: [ 'id', 'name', 'duration', 'views', 'likes', 'dislikes', 'uuid', 'createdAt' ],
  43   FOLLOWERS: [ 'createdAt' ],
  44   FOLLOWING: [ 'createdAt' ],
  45
  46   VIDEOS_SEARCH: [ 'match', 'name', 'duration', 'createdAt', 'publishedAt', 'views', 'likes' ]
  47 }
  48
  49 const OAUTH_LIFETIME = {
  50   ACCESS_TOKEN: 3600 * 24, // 1 day, for upload
  51   REFRESH_TOKEN: 1209600 // 2 weeks
  52 }
  53
  54 const ROUTE_CACHE_LIFETIME = {
  55   FEEDS: '15 minutes',
  56   ROBOTS: '2 hours',
  57   NODEINFO: '10 minutes',
  58   DNT_POLICY: '1 week',
  59   ACTIVITY_PUB: {
  60     VIDEOS: '1 second' // 1 second, cache concurrent requests after a broadcast for example
  61   }
  62 }
  63
  64 // ---------------------------------------------------------------------------
  65
  66 // Number of points we add/remove after a successful/bad request
  67 const ACTOR_FOLLOW_SCORE = {
  68   PENALTY: -10,
  69   BONUS: 10,
  70   BASE: 1000,
  71   MAX: 10000
  72 }
  73
  74 const FOLLOW_STATES: { [ id: string ]: FollowState } = {
  75   PENDING: 'pending',
  76   ACCEPTED: 'accepted'
  77 }
  78
  79 const REMOTE_SCHEME = {
  80   HTTP: 'https',
  81   WS: 'wss'
  82 }
  83
  84 const JOB_ATTEMPTS: { [ id in JobType ]: number } = {
  85   'activitypub-http-broadcast': 5,
  86   'activitypub-http-unicast': 5,
  87   'activitypub-http-fetcher': 5,
  88   'activitypub-follow': 5,
  89   'video-file-import': 1,
  90   'video-file': 1,
  91   'video-import': 1,
  92   'email': 5
  93 }
  94 const JOB_CONCURRENCY: { [ id in JobType ]: number } = {
  95   'activitypub-http-broadcast': 1,
  96   'activitypub-http-unicast': 5,
  97   'activitypub-http-fetcher': 1,
  98   'activitypub-follow': 3,
  99   'video-file-import': 1,
 100   'video-file': 1,
 101   'video-import': 1,
 102   'email': 5
 103 }
 104 const JOB_TTL: { [ id in JobType ]: number } = {
 105   'activitypub-http-broadcast': 60000 * 10, // 10 minutes
 106   'activitypub-http-unicast': 60000 * 10, // 10 minutes
 107   'activitypub-http-fetcher': 60000 * 10, // 10 minutes
 108   'activitypub-follow': 60000 * 10, // 10 minutes
 109   'video-file-import': 1000 * 3600, // 1 hour
 110   'video-file': 1000 * 3600 * 48, // 2 days, transcoding could be long
 111   'video-import': 1000 * 3600 * 5, // 5 hours
 112   'email': 60000 * 10 // 10 minutes
 113 }
 114 const BROADCAST_CONCURRENCY = 10 // How many requests in parallel we do in activitypub-http-broadcast job
 115 const JOB_REQUEST_TIMEOUT = 3000 // 3 seconds
 116 const JOB_COMPLETED_LIFETIME = 60000 * 60 * 24 * 2 // 2 days
 117
 118 // 1 hour
 119 let SCHEDULER_INTERVALS_MS = {
 120   badActorFollow: 60000 * 60, // 1 hour
 121   removeOldJobs: 60000 * 60, // 1 hour
 122   updateVideos: 60000, // 1 minute
 123   youtubeDLUpdate: 60000 * 60 * 24 // 1 day
 124 }
 125
 126 // ---------------------------------------------------------------------------
 127
 128 const CONFIG = {
 129   CUSTOM_FILE: getLocalConfigFilePath(),
 130   LISTEN: {
 131     PORT: config.get<number>('listen.port'),
 132     HOSTNAME: config.get<string>('listen.hostname')
 133   },
 134   DATABASE: {
 135     DBNAME: 'peertube' + config.get<string>('database.suffix'),
 136     HOSTNAME: config.get<string>('database.hostname'),
 137     PORT: config.get<number>('database.port'),
 138     USERNAME: config.get<string>('database.username'),
 139     PASSWORD: config.get<string>('database.password'),
 140     POOL: {
 141       MAX: config.get<number>('database.pool.max')
 142     }
 143   },
 144   REDIS: {
 145     HOSTNAME: config.has('redis.hostname') ? config.get<string>('redis.hostname') : null,
 146     PORT: config.has('redis.port') ? config.get<number>('redis.port') : null,
 147     SOCKET: config.has('redis.socket') ? config.get<string>('redis.socket') : null,
 148     AUTH: config.has('redis.auth') ? config.get<string>('redis.auth') : null,
 149     DB: config.has('redis.db') ? config.get<number>('redis.db') : null
 150   },
 151   SMTP: {
 152     HOSTNAME: config.get<string>('smtp.hostname'),
 153     PORT: config.get<number>('smtp.port'),
 154     USERNAME: config.get<string>('smtp.username'),
 155     PASSWORD: config.get<string>('smtp.password'),
 156     TLS: config.get<boolean>('smtp.tls'),
 157     DISABLE_STARTTLS: config.get<boolean>('smtp.disable_starttls'),
 158     CA_FILE: config.get<string>('smtp.ca_file'),
 159     FROM_ADDRESS: config.get<string>('smtp.from_address')
 160   },
 161   STORAGE: {
 162     AVATARS_DIR: buildPath(config.get<string>('storage.avatars')),
 163     LOG_DIR: buildPath(config.get<string>('storage.logs')),
 164     VIDEOS_DIR: buildPath(config.get<string>('storage.videos')),
 165     THUMBNAILS_DIR: buildPath(config.get<string>('storage.thumbnails')),
 166     PREVIEWS_DIR: buildPath(config.get<string>('storage.previews')),
 167     CAPTIONS_DIR: buildPath(config.get<string>('storage.captions')),
 168     TORRENTS_DIR: buildPath(config.get<string>('storage.torrents')),
 169     CACHE_DIR: buildPath(config.get<string>('storage.cache'))
 170   },
 171   WEBSERVER: {
 172     SCHEME: config.get<boolean>('webserver.https') === true ? 'https' : 'http',
 173     WS: config.get<boolean>('webserver.https') === true ? 'wss' : 'ws',
 174     HOSTNAME: config.get<string>('webserver.hostname'),
 175     PORT: config.get<number>('webserver.port'),
 176     URL: '',
 177     HOST: ''
 178   },
 179   TRUST_PROXY: config.get<string[]>('trust_proxy'),
 180   LOG: {
 181     LEVEL: config.get<string>('log.level')
 182   },
 183   ADMIN: {
 184     get EMAIL () { return config.get<string>('admin.email') }
 185   },
 186   SIGNUP: {
 187     get ENABLED () { return config.get<boolean>('signup.enabled') },
 188     get LIMIT () { return config.get<number>('signup.limit') },
 189     FILTERS: {
 190       CIDR: {
 191         get WHITELIST () { return config.get<string[]>('signup.filters.cidr.whitelist') },
 192         get BLACKLIST () { return config.get<string[]>('signup.filters.cidr.blacklist') }
 193       }
 194     }
 195   },
 196   USER: {
 197     get VIDEO_QUOTA () { return config.get<number>('user.video_quota') }
 198   },
 199   TRANSCODING: {
 200     get ENABLED () { return config.get<boolean>('transcoding.enabled') },
 201     get THREADS () { return config.get<number>('transcoding.threads') },
 202     RESOLUTIONS: {
 203       get '240p' () { return config.get<boolean>('transcoding.resolutions.240p') },
 204       get '360p' () { return config.get<boolean>('transcoding.resolutions.360p') },
 205       get '480p' () { return config.get<boolean>('transcoding.resolutions.480p') },
 206       get '720p' () { return config.get<boolean>('transcoding.resolutions.720p') },
 207       get '1080p' () { return config.get<boolean>('transcoding.resolutions.1080p') }
 208     }
 209   },
 210   IMPORT: {
 211     VIDEOS: {
 212       HTTP: {
 213         get ENABLED () { return config.get<boolean>('import.videos.http.enabled') }
 214       }
 215     }
 216   },
 217   CACHE: {
 218     PREVIEWS: {
 219       get SIZE () { return config.get<number>('cache.previews.size') }
 220     },
 221     VIDEO_CAPTIONS: {
 222       get SIZE () { return config.get<number>('cache.captions.size') }
 223     }
 224   },
 225   INSTANCE: {
 226     get NAME () { return config.get<string>('instance.name') },
 227     get SHORT_DESCRIPTION () { return config.get<string>('instance.short_description') },
 228     get DESCRIPTION () { return config.get<string>('instance.description') },
 229     get TERMS () { return config.get<string>('instance.terms') },
 230     get DEFAULT_CLIENT_ROUTE () { return config.get<string>('instance.default_client_route') },
 231     get DEFAULT_NSFW_POLICY () { return config.get<NSFWPolicyType>('instance.default_nsfw_policy') },
 232     CUSTOMIZATIONS: {
 233       get JAVASCRIPT () { return config.get<string>('instance.customizations.javascript') },
 234       get CSS () { return config.get<string>('instance.customizations.css') }
 235     },
 236     get ROBOTS () { return config.get<string>('instance.robots') }
 237   },
 238   SERVICES: {
 239     TWITTER: {
 240       get USERNAME () { return config.get<string>('services.twitter.username') },
 241       get WHITELISTED () { return config.get<boolean>('services.twitter.whitelisted') }
 242     }
 243   }
 244 }
 245
 246 // ---------------------------------------------------------------------------
 247
 248 const CONSTRAINTS_FIELDS = {
 249   USERS: {
 250     NAME: { min: 3, max: 120 }, // Length
 251     DESCRIPTION: { min: 3, max: 250 }, // Length
 252     USERNAME: { min: 3, max: 20 }, // Length
 253     PASSWORD: { min: 6, max: 255 }, // Length
 254     VIDEO_QUOTA: { min: -1 }
 255   },
 256   VIDEO_ABUSES: {
 257     REASON: { min: 2, max: 300 } // Length
 258   },
 259   VIDEO_CHANNELS: {
 260     NAME: { min: 3, max: 120 }, // Length
 261     DESCRIPTION: { min: 3, max: 500 }, // Length
 262     SUPPORT: { min: 3, max: 500 }, // Length
 263     URL: { min: 3, max: 2000 } // Length
 264   },
 265   VIDEO_CAPTIONS: {
 266     CAPTION_FILE: {
 267       EXTNAME: [ '.vtt', '.srt' ],
 268       FILE_SIZE: {
 269         max: 2 * 1024 * 1024 // 2MB
 270       }
 271     }
 272   },
 273   VIDEO_IMPORTS: {
 274     URL: { min: 3, max: 2000 } // Length
 275   },
 276   VIDEOS: {
 277     NAME: { min: 3, max: 120 }, // Length
 278     LANGUAGE: { min: 1, max: 10 }, // Length
 279     TRUNCATED_DESCRIPTION: { min: 3, max: 250 }, // Length
 280     DESCRIPTION: { min: 3, max: 10000 }, // Length
 281     SUPPORT: { min: 3, max: 500 }, // Length
 282     IMAGE: {
 283       EXTNAME: [ '.jpg', '.jpeg' ],
 284       FILE_SIZE: {
 285         max: 2 * 1024 * 1024 // 2MB
 286       }
 287     },
 288     EXTNAME: [ '.mp4', '.ogv', '.webm' ],
 289     INFO_HASH: { min: 40, max: 40 }, // Length, info hash is 20 bytes length but we represent it in hexadecimal so 20 * 2
 290     DURATION: { min: 0 }, // Number
 291     TAGS: { min: 0, max: 5 }, // Number of total tags
 292     TAG: { min: 2, max: 30 }, // Length
 293     THUMBNAIL: { min: 2, max: 30 },
 294     THUMBNAIL_DATA: { min: 0, max: 20000 }, // Bytes
 295     VIEWS: { min: 0 },
 296     LIKES: { min: 0 },
 297     DISLIKES: { min: 0 },
 298     FILE_SIZE: { min: 10 },
 299     URL: { min: 3, max: 2000 } // Length
 300   },
 301   ACTORS: {
 302     PUBLIC_KEY: { min: 10, max: 5000 }, // Length
 303     PRIVATE_KEY: { min: 10, max: 5000 }, // Length
 304     URL: { min: 3, max: 2000 }, // Length
 305     AVATAR: {
 306       EXTNAME: [ '.png', '.jpeg', '.jpg' ],
 307       FILE_SIZE: {
 308         max: 2 * 1024 * 1024 // 2MB
 309       }
 310     }
 311   },
 312   VIDEO_EVENTS: {
 313     COUNT: { min: 0 }
 314   },
 315   VIDEO_COMMENTS: {
 316     TEXT: { min: 1, max: 3000 }, // Length
 317     URL: { min: 3, max: 2000 } // Length
 318   },
 319   VIDEO_SHARE: {
 320     URL: { min: 3, max: 2000 } // Length
 321   }
 322 }
 323
 324 const RATES_LIMIT = {
 325   LOGIN: {
 326     WINDOW_MS: 5 * 60 * 1000, // 5 minutes
 327     MAX: 15 // 15 attempts
 328   }
 329 }
 330
 331 let VIDEO_VIEW_LIFETIME = 60000 * 60 // 1 hour
 332 const VIDEO_TRANSCODING_FPS = {
 333   MIN: 10,
 334   AVERAGE: 30,
 335   MAX: 60,
 336   KEEP_ORIGIN_FPS_RESOLUTION_MIN: 720 // We keep the original FPS on high resolutions (720 minimum)
 337 }
 338
 339 const VIDEO_RATE_TYPES: { [ id: string ]: VideoRateType } = {
 340   LIKE: 'like',
 341   DISLIKE: 'dislike'
 342 }
 343
 344 const FFMPEG_NICE: { [ id: string ]: number } = {
 345   THUMBNAIL: 2, // 2 just for don't blocking servers
 346   TRANSCODING: 15
 347 }
 348
 349 const VIDEO_CATEGORIES = {
 350   1: 'Music',
 351   2: 'Films',
 352   3: 'Vehicles',
 353   4: 'Art',
 354   5: 'Sports',
 355   6: 'Travels',
 356   7: 'Gaming',
 357   8: 'People',
 358   9: 'Comedy',
 359   10: 'Entertainment',
 360   11: 'News',
 361   12: 'How To',
 362   13: 'Education',
 363   14: 'Activism',
 364   15: 'Science & Technology',
 365   16: 'Animals',
 366   17: 'Kids',
 367   18: 'Food'
 368 }
 369
 370 // See https://creativecommons.org/licenses/?lang=en
 371 const VIDEO_LICENCES = {
 372   1: 'Attribution',
 373   2: 'Attribution - Share Alike',
 374   3: 'Attribution - No Derivatives',
 375   4: 'Attribution - Non Commercial',
 376   5: 'Attribution - Non Commercial - Share Alike',
 377   6: 'Attribution - Non Commercial - No Derivatives',
 378   7: 'Public Domain Dedication'
 379 }
 380
 381 const VIDEO_LANGUAGES = buildLanguages()
 382
 383 const VIDEO_PRIVACIES = {
 384   [VideoPrivacy.PUBLIC]: 'Public',
 385   [VideoPrivacy.UNLISTED]: 'Unlisted',
 386   [VideoPrivacy.PRIVATE]: 'Private'
 387 }
 388
 389 const VIDEO_STATES = {
 390   [VideoState.PUBLISHED]: 'Published',
 391   [VideoState.TO_TRANSCODE]: 'To transcode',
 392   [VideoState.TO_IMPORT]: 'To import'
 393 }
 394
 395 const VIDEO_IMPORT_STATES = {
 396   [VideoImportState.FAILED]: 'Failed',
 397   [VideoImportState.PENDING]: 'Pending',
 398   [VideoImportState.SUCCESS]: 'Success'
 399 }
 400
 401 const VIDEO_MIMETYPE_EXT = {
 402   'video/webm': '.webm',
 403   'video/ogg': '.ogv',
 404   'video/mp4': '.mp4'
 405 }
 406 const VIDEO_EXT_MIMETYPE = invert(VIDEO_MIMETYPE_EXT)
 407
 408 const IMAGE_MIMETYPE_EXT = {
 409   'image/png': '.png',
 410   'image/jpg': '.jpg',
 411   'image/jpeg': '.jpg'
 412 }
 413
 414 const VIDEO_CAPTIONS_MIMETYPE_EXT = {
 415   'text/vtt': '.vtt',
 416   'application/x-subrip': '.srt'
 417 }
 418
 419 // ---------------------------------------------------------------------------
 420
 421 const SERVER_ACTOR_NAME = 'peertube'
 422
 423 const ACTIVITY_PUB = {
 424   POTENTIAL_ACCEPT_HEADERS: [
 425     'application/activity+json',
 426     'application/ld+json',
 427     'application/ld+json; profile="https://www.w3.org/ns/activitystreams"'
 428   ],
 429   ACCEPT_HEADER: 'application/activity+json, application/ld+json',
 430   PUBLIC: 'https://www.w3.org/ns/activitystreams#Public',
 431   COLLECTION_ITEMS_PER_PAGE: 10,
 432   FETCH_PAGE_LIMIT: 100,
 433   URL_MIME_TYPES: {
 434     VIDEO: Object.keys(VIDEO_MIMETYPE_EXT),
 435     TORRENT: [ 'application/x-bittorrent' ],
 436     MAGNET: [ 'application/x-bittorrent;x-scheme-handler/magnet' ]
 437   },
 438   MAX_RECURSION_COMMENTS: 100,
 439   ACTOR_REFRESH_INTERVAL: 3600 * 24 * 1000 // 1 day
 440 }
 441
 442 const ACTIVITY_PUB_ACTOR_TYPES: { [ id: string ]: ActivityPubActorType } = {
 443   GROUP: 'Group',
 444   PERSON: 'Person',
 445   APPLICATION: 'Application'
 446 }
 447
 448 // ---------------------------------------------------------------------------
 449
 450 const PRIVATE_RSA_KEY_SIZE = 2048
 451
 452 // Password encryption
 453 const BCRYPT_SALT_SIZE = 10
 454
 455 const USER_PASSWORD_RESET_LIFETIME = 60000 * 5 // 5 minutes
 456
 457 const NSFW_POLICY_TYPES: { [ id: string]: NSFWPolicyType } = {
 458   DO_NOT_LIST: 'do_not_list',
 459   BLUR: 'blur',
 460   DISPLAY: 'display'
 461 }
 462
 463 // ---------------------------------------------------------------------------
 464
 465 // Express static paths (router)
 466 const STATIC_PATHS = {
 467   PREVIEWS: '/static/previews/',
 468   THUMBNAILS: '/static/thumbnails/',
 469   TORRENTS: '/static/torrents/',
 470   WEBSEED: '/static/webseed/',
 471   AVATARS: '/static/avatars/',
 472   VIDEO_CAPTIONS: '/static/video-captions/'
 473 }
 474 const STATIC_DOWNLOAD_PATHS = {
 475   TORRENTS: '/download/torrents/',
 476   VIDEOS: '/download/videos/'
 477 }
 478
 479 // Cache control
 480 let STATIC_MAX_AGE = '2h'
 481
 482 // Videos thumbnail size
 483 const THUMBNAILS_SIZE = {
 484   width: 200,
 485   height: 110
 486 }
 487 const PREVIEWS_SIZE = {
 488   width: 560,
 489   height: 315
 490 }
 491 const AVATARS_SIZE = {
 492   width: 120,
 493   height: 120
 494 }
 495
 496 const EMBED_SIZE = {
 497   width: 560,
 498   height: 315
 499 }
 500
 501 // Sub folders of cache directory
 502 const CACHE = {
 503   PREVIEWS: {
 504     DIRECTORY: join(CONFIG.STORAGE.CACHE_DIR, 'previews'),
 505     MAX_AGE: 1000 * 3600 * 3 // 3 hours
 506   },
 507   VIDEO_CAPTIONS: {
 508     DIRECTORY: join(CONFIG.STORAGE.CACHE_DIR, 'video-captions'),
 509     MAX_AGE: 1000 * 3600 * 3 // 3 hours
 510   }
 511 }
 512
 513 const ACCEPT_HEADERS = [ 'html', 'application/json' ].concat(ACTIVITY_PUB.POTENTIAL_ACCEPT_HEADERS)
 514
 515 // ---------------------------------------------------------------------------
 516
 517 const CUSTOM_HTML_TAG_COMMENTS = {
 518   TITLE: '<!-- title tag -->',
 519   DESCRIPTION: '<!-- description tag -->',
 520   CUSTOM_CSS: '<!-- custom css tag -->',
 521   OPENGRAPH_AND_OEMBED: '<!-- open graph and oembed tags -->'
 522 }
 523
 524 // ---------------------------------------------------------------------------
 525
 526 const FEEDS = {
 527   COUNT: 20
 528 }
 529
 530 // ---------------------------------------------------------------------------
 531
 532 const TRACKER_RATE_LIMITS = {
 533   INTERVAL: 60000 * 5, // 5 minutes
 534   ANNOUNCES_PER_IP_PER_INFOHASH: 15, // maximum announces per torrent in the interval
 535   ANNOUNCES_PER_IP: 30 // maximum announces for all our torrents in the interval
 536 }
 537
 538 // ---------------------------------------------------------------------------
 539
 540 // Special constants for a test instance
 541 if (isTestInstance() === true) {
 542   ACTOR_FOLLOW_SCORE.BASE = 20
 543
 544   REMOTE_SCHEME.HTTP = 'http'
 545   REMOTE_SCHEME.WS = 'ws'
 546
 547   STATIC_MAX_AGE = '0'
 548
 549   ACTIVITY_PUB.COLLECTION_ITEMS_PER_PAGE = 2
 550   ACTIVITY_PUB.ACTOR_REFRESH_INTERVAL = 10 * 1000 // 10 seconds
 551
 552   CONSTRAINTS_FIELDS.ACTORS.AVATAR.FILE_SIZE.max = 100 * 1024 // 100KB
 553
 554   SCHEDULER_INTERVALS_MS.badActorFollow = 10000
 555   SCHEDULER_INTERVALS_MS.removeOldJobs = 10000
 556   SCHEDULER_INTERVALS_MS.updateVideos = 5000
 557
 558   VIDEO_VIEW_LIFETIME = 1000 // 1 second
 559
 560   JOB_ATTEMPTS['email'] = 1
 561
 562   CACHE.VIDEO_CAPTIONS.MAX_AGE = 3000
 563 }
 564
 565 updateWebserverConfig()
 566
 567 // ---------------------------------------------------------------------------
 568
 569 export {
 570   API_VERSION,
 571   VIDEO_CAPTIONS_MIMETYPE_EXT,
 572   AVATARS_SIZE,
 573   ACCEPT_HEADERS,
 574   BCRYPT_SALT_SIZE,
 575   TRACKER_RATE_LIMITS,
 576   CACHE,
 577   CONFIG,
 578   CONSTRAINTS_FIELDS,
 579   EMBED_SIZE,
 580   JOB_CONCURRENCY,
 581   JOB_ATTEMPTS,
 582   LAST_MIGRATION_VERSION,
 583   OAUTH_LIFETIME,
 584   CUSTOM_HTML_TAG_COMMENTS,
 585   BROADCAST_CONCURRENCY,
 586   PAGINATION,
 587   ACTOR_FOLLOW_SCORE,
 588   PREVIEWS_SIZE,
 589   REMOTE_SCHEME,
 590   FOLLOW_STATES,
 591   SERVER_ACTOR_NAME,
 592   PRIVATE_RSA_KEY_SIZE,
 593   ROUTE_CACHE_LIFETIME,
 594   SORTABLE_COLUMNS,
 595   FEEDS,
 596   JOB_TTL,
 597   NSFW_POLICY_TYPES,
 598   STATIC_MAX_AGE,
 599   STATIC_PATHS,
 600   ACTIVITY_PUB,
 601   ACTIVITY_PUB_ACTOR_TYPES,
 602   THUMBNAILS_SIZE,
 603   VIDEO_CATEGORIES,
 604   VIDEO_LANGUAGES,
 605   VIDEO_PRIVACIES,
 606   VIDEO_LICENCES,
 607   VIDEO_STATES,
 608   VIDEO_RATE_TYPES,
 609   VIDEO_MIMETYPE_EXT,
 610   VIDEO_TRANSCODING_FPS,
 611   FFMPEG_NICE,
 612   JOB_REQUEST_TIMEOUT,
 613   USER_PASSWORD_RESET_LIFETIME,
 614   IMAGE_MIMETYPE_EXT,
 615   SCHEDULER_INTERVALS_MS,
 616   STATIC_DOWNLOAD_PATHS,
 617   RATES_LIMIT,
 618   VIDEO_EXT_MIMETYPE,
 619   JOB_COMPLETED_LIFETIME,
 620   VIDEO_IMPORT_STATES,
 621   VIDEO_VIEW_LIFETIME,
 622   buildLanguages
 623 }
 624
 625 // ---------------------------------------------------------------------------
 626
 627 function getLocalConfigFilePath () {
 628   const configSources = config.util.getConfigSources()
 629   if (configSources.length === 0) throw new Error('Invalid config source.')
 630
 631   let filename = 'local'
 632   if (process.env.NODE_ENV) filename += `-${process.env.NODE_ENV}`
 633   if (process.env.NODE_APP_INSTANCE) filename += `-${process.env.NODE_APP_INSTANCE}`
 634
 635   return join(dirname(configSources[ 0 ].name), filename + '.json')
 636 }
 637
 638 function updateWebserverConfig () {
 639   CONFIG.WEBSERVER.URL = sanitizeUrl(CONFIG.WEBSERVER.SCHEME + '://' + CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WEBSERVER.PORT)
 640   CONFIG.WEBSERVER.HOST = sanitizeHost(CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WEBSERVER.PORT, REMOTE_SCHEME.HTTP)
 641 }
 642
 643 function buildLanguages () {
 644   const iso639 = require('iso-639-3')
 645
 646   const languages: { [ id: string ]: string } = {}
 647
 648   const additionalLanguages = {
 649     'sgn': true, // Sign languages (macro language)
 650     'ase': true, // American sign language
 651     'sdl': true, // Arabian sign language
 652     'bfi': true, // British sign language
 653     'bzs': true, // Brazilian sign language
 654     'csl': true, // Chinese sign language
 655     'cse': true, // Czech sign language
 656     'dsl': true, // Danish sign language
 657     'fsl': true, // French sign language
 658     'gsg': true, // German sign language
 659     'pks': true, // Pakistan sign language
 660     'jsl': true, // Japanese sign language
 661     'sfs': true, // South African sign language
 662     'swl': true, // Swedish sign language
 663     'rsl': true, // Russian sign language: true
 664
 665     'epo': true, // Esperanto
 666     'tlh': true, // Klingon
 667     'jbo': true, // Lojban
 668     'avk': true // Kotava
 669   }
 670
 671   // Only add ISO639-1 languages and some sign languages (ISO639-3)
 672   iso639
 673     .filter(l => {
 674       return (l.iso6391 !== null && l.type === 'living') ||
 675         additionalLanguages[l.iso6393] === true
 676     })
 677     .forEach(l => languages[l.iso6391 || l.iso6393] = l.name)
 678
 679   return languages
 680 }
 681
 682 export function reloadConfig () {
 683
 684   function directory () {
 685     if (process.env.NODE_CONFIG_DIR) {
 686       return process.env.NODE_CONFIG_DIR
 687     }
 688
 689     return join(root(), 'config')
 690   }
 691
 692   function purge () {
 693     for (const fileName in require.cache) {
 694       if (-1 === fileName.indexOf(directory())) {
 695         continue
 696       }
 697
 698       delete require.cache[fileName]
 699     }
 700
 701     delete require.cache[require.resolve('config')]
 702   }
 703
 704   purge()
 705
 706   config = require('config')
 707
 708   updateWebserverConfig()
 709 }