server/helpers/utils.ts

   1 import { ResultList } from '../../shared'
   2 import { CONFIG } from '../initializers'
   3 import { ActorModel } from '../models/activitypub/actor'
   4 import { ApplicationModel } from '../models/application/application'
   5 import { pseudoRandomBytesPromise, sha256 } from './core-utils'
   6 import { logger } from './logger'
   7 import { join } from 'path'
   8 import { Instance as ParseTorrent } from 'parse-torrent'
   9 import { remove } from 'fs-extra'
  10
  11 function deleteFileAsync (path: string) {
  12   remove(path)
  13     .catch(err => logger.error('Cannot delete the file %s asynchronously.', path, { err }))
  14 }
  15
  16 async function generateRandomString (size: number) {
  17   const raw = await pseudoRandomBytesPromise(size)
  18
  19   return raw.toString('hex')
  20 }
  21
  22 interface FormattableToJSON {
  23   toFormattedJSON (args?: any)
  24 }
  25
  26 function getFormattedObjects<U, T extends FormattableToJSON> (objects: T[], objectsTotal: number, formattedArg?: any) {
  27   const formattedObjects: U[] = []
  28
  29   objects.forEach(object => {
  30     formattedObjects.push(object.toFormattedJSON(formattedArg))
  31   })
  32
  33   return {
  34     total: objectsTotal,
  35     data: formattedObjects
  36   } as ResultList<U>
  37 }
  38
  39 async function getServerActor () {
  40   if (getServerActor.serverActor === undefined) {
  41     const application = await ApplicationModel.load()
  42     if (!application) throw Error('Could not load Application from database.')
  43
  44     getServerActor.serverActor = application.Account.Actor
  45   }
  46
  47   if (!getServerActor.serverActor) {
  48     logger.error('Cannot load server actor.')
  49     process.exit(0)
  50   }
  51
  52   return Promise.resolve(getServerActor.serverActor)
  53 }
  54 namespace getServerActor {
  55   export let serverActor: ActorModel
  56 }
  57
  58 function generateVideoTmpPath (target: string | ParseTorrent) {
  59   const id = typeof target === 'string' ? target : target.infoHash
  60
  61   const hash = sha256(id)
  62   return join(CONFIG.STORAGE.VIDEOS_DIR, hash + '-import.mp4')
  63 }
  64
  65 function getSecureTorrentName (originalName: string) {
  66   return sha256(originalName) + '.torrent'
  67 }
  68
  69 // ---------------------------------------------------------------------------
  70
  71 export {
  72   deleteFileAsync,
  73   generateRandomString,
  74   getFormattedObjects,
  75   getSecureTorrentName,
  76   getServerActor,
  77   generateVideoTmpPath
  78 }