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path: root/server/initializers/checker-after-init.ts
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import { util, has, get } from 'config'
import { uniq } from 'lodash'
import { URL } from 'url'
import { getFFmpegVersion } from '@server/helpers/ffmpeg-utils'
import { VideoRedundancyConfigFilter } from '@shared/models/redundancy/video-redundancy-config-filter.type'
import { RecentlyAddedStrategy } from '../../shared/models/redundancy'
import { isProdInstance, isTestInstance, parseSemVersion } from '../helpers/core-utils'
import { isArray } from '../helpers/custom-validators/misc'
import { logger } from '../helpers/logger'
import { UserModel } from '../models/user/user'
import { ApplicationModel, getServerActor } from '../models/application/application'
import { OAuthClientModel } from '../models/oauth/oauth-client'
import { CONFIG, isEmailEnabled } from './config'
import { WEBSERVER } from './constants'

async function checkActivityPubUrls () {
  const actor = await getServerActor()

  const parsed = new URL(actor.url)
  if (WEBSERVER.HOST !== parsed.host) {
    const NODE_ENV = util.getEnv('NODE_ENV')
    const NODE_CONFIG_DIR = util.getEnv('NODE_CONFIG_DIR')

    logger.warn(
      'It seems PeerTube was started (and created some data) with another domain name. ' +
      'This means you will not be able to federate! ' +
      'Please use %s %s npm run update-host to fix this.',
      NODE_CONFIG_DIR ? `NODE_CONFIG_DIR=${NODE_CONFIG_DIR}` : '',
      NODE_ENV ? `NODE_ENV=${NODE_ENV}` : ''
    )
  }
}

// Some checks on configuration files
// Return an error message, or null if everything is okay
function checkConfig () {

  // Moved configuration keys
  if (has('services.csp-logger')) {
    logger.warn('services.csp-logger configuration has been renamed to csp.report_uri. Please update your configuration file.')
  }

  // Email verification
  if (!isEmailEnabled()) {
    if (CONFIG.SIGNUP.ENABLED && CONFIG.SIGNUP.REQUIRES_EMAIL_VERIFICATION) {
      return 'Emailer is disabled but you require signup email verification.'
    }

    if (CONFIG.CONTACT_FORM.ENABLED) {
      logger.warn('Emailer is disabled so the contact form will not work.')
    }
  }

  // NSFW policy
  const defaultNSFWPolicy = CONFIG.INSTANCE.DEFAULT_NSFW_POLICY
  {
    const available = [ 'do_not_list', 'blur', 'display' ]
    if (available.includes(defaultNSFWPolicy) === false) {
      return 'NSFW policy setting should be ' + available.join(' or ') + ' instead of ' + defaultNSFWPolicy
    }
  }

  // Redundancies
  const redundancyVideos = CONFIG.REDUNDANCY.VIDEOS.STRATEGIES
  if (isArray(redundancyVideos)) {
    const available = [ 'most-views', 'trending', 'recently-added' ]
    for (const r of redundancyVideos) {
      if (available.includes(r.strategy) === false) {
        return 'Videos redundancy should have ' + available.join(' or ') + ' strategy instead of ' + r.strategy
      }

      // Lifetime should not be < 10 hours
      if (!isTestInstance() && r.minLifetime < 1000 * 3600 * 10) {
        return 'Video redundancy minimum lifetime should be >= 10 hours for strategy ' + r.strategy
      }
    }

    const filtered = uniq(redundancyVideos.map(r => r.strategy))
    if (filtered.length !== redundancyVideos.length) {
      return 'Redundancy video entries should have unique strategies'
    }

    const recentlyAddedStrategy = redundancyVideos.find(r => r.strategy === 'recently-added') as RecentlyAddedStrategy
    if (recentlyAddedStrategy && isNaN(recentlyAddedStrategy.minViews)) {
      return 'Min views in recently added strategy is not a number'
    }
  } else {
    return 'Videos redundancy should be an array (you must uncomment lines containing - too)'
  }

  // Remote redundancies
  const acceptFrom = CONFIG.REMOTE_REDUNDANCY.VIDEOS.ACCEPT_FROM
  const acceptFromValues = new Set<VideoRedundancyConfigFilter>([ 'nobody', 'anybody', 'followings' ])
  if (acceptFromValues.has(acceptFrom) === false) {
    return 'remote_redundancy.videos.accept_from has an incorrect value'
  }

  // Check storage directory locations
  if (isProdInstance()) {
    const configStorage = get('storage')
    for (const key of Object.keys(configStorage)) {
      if (configStorage[key].startsWith('storage/')) {
        logger.warn(
          'Directory of %s should not be in the production directory of PeerTube. Please check your production configuration file.',
          key
        )
      }
    }
  }

  if (CONFIG.STORAGE.VIDEOS_DIR === CONFIG.STORAGE.REDUNDANCY_DIR) {
    logger.warn('Redundancy directory should be different than the videos folder.')
  }

  // Transcoding
  if (CONFIG.TRANSCODING.ENABLED) {
    if (CONFIG.TRANSCODING.WEBTORRENT.ENABLED === false && CONFIG.TRANSCODING.HLS.ENABLED === false) {
      return 'You need to enable at least WebTorrent transcoding or HLS transcoding.'
    }

    if (CONFIG.TRANSCODING.CONCURRENCY <= 0) {
      return 'Transcoding concurrency should be > 0'
    }
  }

  if (CONFIG.IMPORT.VIDEOS.HTTP.ENABLED || CONFIG.IMPORT.VIDEOS.TORRENT.ENABLED) {
    if (CONFIG.IMPORT.VIDEOS.CONCURRENCY <= 0) {
      return 'Video import concurrency should be > 0'
    }
  }

  // Broadcast message
  if (CONFIG.BROADCAST_MESSAGE.ENABLED) {
    const currentLevel = CONFIG.BROADCAST_MESSAGE.LEVEL
    const available = [ 'info', 'warning', 'error' ]

    if (available.includes(currentLevel) === false) {
      return 'Broadcast message level should be ' + available.join(' or ') + ' instead of ' + currentLevel
    }
  }

  // Search index
  if (CONFIG.SEARCH.SEARCH_INDEX.ENABLED === true) {
    if (CONFIG.SEARCH.REMOTE_URI.USERS === false) {
      return 'You cannot enable search index without enabling remote URI search for users.'
    }
  }

  // Live
  if (CONFIG.LIVE.ENABLED === true) {
    if (CONFIG.LIVE.ALLOW_REPLAY === true && CONFIG.TRANSCODING.ENABLED === false) {
      return 'Live allow replay cannot be enabled if transcoding is not enabled.'
    }
  }

  // Object storage
  if (CONFIG.OBJECT_STORAGE.ENABLED === true) {

    if (!CONFIG.OBJECT_STORAGE.VIDEOS.BUCKET_NAME) {
      return 'videos_bucket should be set when object storage support is enabled.'
    }

    if (!CONFIG.OBJECT_STORAGE.STREAMING_PLAYLISTS.BUCKET_NAME) {
      return 'streaming_playlists_bucket should be set when object storage support is enabled.'
    }

    if (
      CONFIG.OBJECT_STORAGE.VIDEOS.BUCKET_NAME === CONFIG.OBJECT_STORAGE.STREAMING_PLAYLISTS.BUCKET_NAME &&
      CONFIG.OBJECT_STORAGE.VIDEOS.PREFIX === CONFIG.OBJECT_STORAGE.STREAMING_PLAYLISTS.PREFIX
    ) {
      if (CONFIG.OBJECT_STORAGE.VIDEOS.PREFIX === '') {
        return 'Object storage bucket prefixes should be set when the same bucket is used for both types of video.'
      } else {
        return 'Object storage bucket prefixes should be set to different values when the same bucket is used for both types of video.'
      }
    }
  }

  return null
}

// We get db by param to not import it in this file (import orders)
async function clientsExist () {
  const totalClients = await OAuthClientModel.countTotal()

  return totalClients !== 0
}

// We get db by param to not import it in this file (import orders)
async function usersExist () {
  const totalUsers = await UserModel.countTotal()

  return totalUsers !== 0
}

// We get db by param to not import it in this file (import orders)
async function applicationExist () {
  const totalApplication = await ApplicationModel.countTotal()

  return totalApplication !== 0
}

async function checkFFmpegVersion () {
  const version = await getFFmpegVersion()
  const { major, minor } = parseSemVersion(version)

  if (major < 4 || (major === 4 && minor < 1)) {
    logger.warn('Your ffmpeg version (%s) is outdated. PeerTube supports ffmpeg >= 4.1. Please upgrade.', version)
  }
}

// ---------------------------------------------------------------------------

export {
  checkConfig,
  clientsExist,
  checkFFmpegVersion,
  usersExist,
  applicationExist,
  checkActivityPubUrls
}