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