server/helpers/utils.ts

   1 import { ResultList } from '../../shared'
   2 import { CONFIG } from '../initializers'
   3 import { ApplicationModel } from '../models/application/application'
   4 import { pseudoRandomBytesPromise, sha256 } from './core-utils'
   5 import { logger } from './logger'
   6 import { join } from 'path'
   7 import { Instance as ParseTorrent } from 'parse-torrent'
   8 import { remove } from 'fs-extra'
   9 import * as memoizee from 'memoizee'
  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 const getServerActor = memoizee(async function () {
  40   const application = await ApplicationModel.load()
  41   if (!application) throw Error('Could not load Application from database.')
  42
  43   return application.Account.Actor
  44 })
  45
  46 function generateVideoTmpPath (target: string | ParseTorrent) {
  47   const id = typeof target === 'string' ? target : target.infoHash
  48
  49   const hash = sha256(id)
  50   return join(CONFIG.STORAGE.VIDEOS_DIR, hash + '-import.mp4')
  51 }
  52
  53 function getSecureTorrentName (originalName: string) {
  54   return sha256(originalName) + '.torrent'
  55 }
  56
  57 // ---------------------------------------------------------------------------
  58
  59 export {
  60   deleteFileAsync,
  61   generateRandomString,
  62   getFormattedObjects,
  63   getSecureTorrentName,
  64   getServerActor,
  65   generateVideoTmpPath
  66 }