Add ability to generate HLS in CLI

[oweals/peertube.git] / server / helpers / utils.ts

diff --git a/server/helpers/utils.ts b/server/helpers/utils.ts
index b74442ab0b1dae708ea96bc3fb2317cce1832fee..ba07eaaf342c450410f323982b48c5c217729aa1 100644 (file)
--- a/server/helpers/utils.ts
+++ b/server/helpers/utils.ts
@@ -1,83 +1,104 @@
-import * as express from 'express'
-import * as Promise from 'bluebird'
-
-import { pseudoRandomBytesPromise } from './core-utils'
-import { CONFIG, database as db } from '../initializers'
 import { ResultList } from '../../shared'
-import { VideoResolution } from '../../shared/models/videos/video-resolution.enum'
-
-function badRequest (req: express.Request, res: express.Response, next: express.NextFunction) {
-  res.type('json').status(400).end()
+import { ApplicationModel } from '../models/application/application'
+import { execPromise, execPromise2, pseudoRandomBytesPromise, sha256 } from './core-utils'
+import { logger } from './logger'
+import { join } from 'path'
+import { Instance as ParseTorrent } from 'parse-torrent'
+import { remove } from 'fs-extra'
+import * as memoizee from 'memoizee'
+import { CONFIG } from '../initializers/config'
+
+function deleteFileAsync (path: string) {
+  remove(path)
+    .catch(err => logger.error('Cannot delete the file %s asynchronously.', path, { err }))
 }
 
-function generateRandomString (size: number) {
-  return pseudoRandomBytesPromise(size).then(raw => raw.toString('hex'))
-}
+async function generateRandomString (size: number) {
+  const raw = await pseudoRandomBytesPromise(size)
 
-interface FormattableToJSON {
-  toFormattedJSON ()
+  return raw.toString('hex')
 }
 
-function getFormattedObjects<U, T extends FormattableToJSON> (objects: T[], objectsTotal: number) {
-  const formattedObjects: U[] = []
+interface FormattableToJSON<U, V> {
+  toFormattedJSON (args?: U): V
+}
 
-  objects.forEach(object => {
-    formattedObjects.push(object.toFormattedJSON())
-  })
+function getFormattedObjects<U, V, T extends FormattableToJSON<U, V>> (objects: T[], objectsTotal: number, formattedArg?: U) {
+  const formattedObjects = objects.map(o => o.toFormattedJSON(formattedArg))
 
-  const res: ResultList<U> = {
+  return {
     total: objectsTotal,
     data: formattedObjects
-  }
+  } as ResultList<V>
+}
+
+const getServerActor = memoizee(async function () {
+  const application = await ApplicationModel.load()
+  if (!application) throw Error('Could not load Application from database.')
+
+  const actor = application.Account.Actor
+  actor.Account = application.Account
+
+  return actor
+})
 
-  return res
+function generateVideoImportTmpPath (target: string | ParseTorrent) {
+  const id = typeof target === 'string' ? target : target.infoHash
+
+  const hash = sha256(id)
+  return join(CONFIG.STORAGE.TMP_DIR, hash + '-import.mp4')
 }
 
-function isSignupAllowed () {
-  if (CONFIG.SIGNUP.ENABLED === false) {
-    return Promise.resolve(false)
-  }
+function getSecureTorrentName (originalName: string) {
+  return sha256(originalName) + '.torrent'
+}
+
+async function getServerCommit () {
+  try {
+    const tag = await execPromise2(
+      '[ ! -d .git ] || git name-rev --name-only --tags --no-undefined HEAD 2>/dev/null || true',
+      { stdio: [ 0, 1, 2 ] }
+    )
 
-  // No limit and signup is enabled
-  if (CONFIG.SIGNUP.LIMIT === -1) {
-    return Promise.resolve(true)
+    if (tag) return tag.replace(/^v/, '')
+  } catch (err) {
+    logger.debug('Cannot get version from git tags.', { err })
   }
 
-  return db.User.countTotal().then(totalUsers => {
-    return totalUsers < CONFIG.SIGNUP.LIMIT
-  })
-}
+  try {
+    const version = await execPromise('[ ! -d .git ] || git rev-parse --short HEAD')
 
-function computeResolutionsToTranscode (videoFileHeight: number) {
-  const resolutionsEnabled: number[] = []
-  const configResolutions = CONFIG.TRANSCODING.RESOLUTIONS
-
-  const resolutions = [
-    VideoResolution.H_240P,
-    VideoResolution.H_360P,
-    VideoResolution.H_480P,
-    VideoResolution.H_720P,
-    VideoResolution.H_1080P
-  ]
-
-  for (const resolution of resolutions) {
-    if (configResolutions[resolution.toString()] === true && videoFileHeight >= resolution) {
-      resolutionsEnabled.push(resolution)
-    }
+    if (version) return version.toString().trim()
+  } catch (err) {
+    logger.debug('Cannot get version from git HEAD.', { err })
   }
 
-  return resolutionsEnabled
+  return ''
 }
 
-type SortType = { sortModel: any, sortValue: string }
+/**
+ * From a filename like "ede4cba5-742b-46fa-a388-9a6eb3a3aeb3.mp4", returns
+ * only the "ede4cba5-742b-46fa-a388-9a6eb3a3aeb3" part. If the filename does
+ * not contain a UUID, returns null.
+ */
+function getUUIDFromFilename (filename: string) {
+  const regex = /[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/
+  const result = filename.match(regex)
+
+  if (!result || Array.isArray(result) === false) return null
+
+  return result[0]
+}
 
 // ---------------------------------------------------------------------------
 
 export {
-  badRequest,
+  deleteFileAsync,
   generateRandomString,
   getFormattedObjects,
-  isSignupAllowed,
-  computeResolutionsToTranscode,
-  SortType
+  getSecureTorrentName,
+  getServerActor,
+  getServerCommit,
+  generateVideoImportTmpPath,
+  getUUIDFromFilename
 }