server/server -> server/core

server/core/helpers/utils.ts

@@ -0,0 +1,70 @@
+import { remove } from 'fs-extra/esm'
+import { Instance as ParseTorrent } from 'parse-torrent'
+import { join } from 'path'
+import { sha256 } from '@peertube/peertube-node-utils'
+import { ResultList } from '@peertube/peertube-models'
+import { CONFIG } from '../initializers/config.js'
+import { randomBytesPromise } from './core-utils.js'
+import { logger } from './logger.js'
+
+function deleteFileAndCatch (path: string) {
+  remove(path)
+    .catch(err => logger.error('Cannot delete the file %s asynchronously.', path, { err }))
+}
+
+async function generateRandomString (size: number) {
+  const raw = await randomBytesPromise(size)
+
+  return raw.toString('hex')
+}
+
+interface FormattableToJSON<U, V> {
+  toFormattedJSON (args?: U): V
+}
+
+function getFormattedObjects<U, V, T extends FormattableToJSON<U, V>> (objects: T[], objectsTotal: number, formattedArg?: U) {
+  const formattedObjects = objects.map(o => o.toFormattedJSON(formattedArg))
+
+  return {
+    total: objectsTotal,
+    data: formattedObjects
+  } as ResultList<V>
+}
+
+function generateVideoImportTmpPath (target: string | ParseTorrent, extension = '.mp4') {
+  const id = typeof target === 'string'
+    ? target
+    : target.infoHash
+
+  const hash = sha256(id)
+  return join(CONFIG.STORAGE.TMP_DIR, `${hash}-import${extension}`)
+}
+
+function getSecureTorrentName (originalName: string) {
+  return sha256(originalName) + '.torrent'
+}
+
+/**
+ * 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 {
+  deleteFileAndCatch,
+  generateRandomString,
+  getFormattedObjects,
+  getSecureTorrentName,
+  generateVideoImportTmpPath,
+  getUUIDFromFilename
+}