Agnostic actor image storage

1 files changed, 85 insertions, 0 deletions

diff --git a/server/lib/actor-image.ts b/server/lib/actor-image.ts
new file mode 100644
index 000000000..ca7f9658d
--- /dev/null
+++ b/server/lib/actor-image.ts
@@ -0,0 +1,85 @@
+import 'multer'
+import { queue } from 'async'
+import * as LRUCache from 'lru-cache'
+import { extname, join } from 'path'
+import { v4 as uuidv4 } from 'uuid'
+import { retryTransactionWrapper } from '../helpers/database-utils'
+import { processImage } from '../helpers/image-utils'
+import { downloadImage } from '../helpers/requests'
+import { CONFIG } from '../initializers/config'
+import { AVATARS_SIZE, LRU_CACHE, QUEUE_CONCURRENCY } from '../initializers/constants'
+import { sequelizeTypescript } from '../initializers/database'
+import { MAccountDefault, MChannelDefault } from '../types/models'
+import { deleteActorAvatarInstance, updateActorAvatarInstance } from './activitypub/actor'
+import { sendUpdateActor } from './activitypub/send'
+
+async function updateLocalActorAvatarFile (
+  accountOrChannel: MAccountDefault | MChannelDefault,
+  avatarPhysicalFile: Express.Multer.File
+) {
+  const extension = extname(avatarPhysicalFile.filename)
+
+  const avatarName = uuidv4() + extension
+  const destination = join(CONFIG.STORAGE.ACTOR_IMAGES, avatarName)
+  await processImage(avatarPhysicalFile.path, destination, AVATARS_SIZE)
+
+  return retryTransactionWrapper(() => {
+    return sequelizeTypescript.transaction(async t => {
+      const avatarInfo = {
+        name: avatarName,
+        fileUrl: null,
+        onDisk: true
+      }
+
+      const updatedActor = await updateActorAvatarInstance(accountOrChannel.Actor, avatarInfo, t)
+      await updatedActor.save({ transaction: t })
+
+      await sendUpdateActor(accountOrChannel, t)
+
+      return updatedActor.Avatar
+    })
+  })
+}
+
+async function deleteLocalActorAvatarFile (
+  accountOrChannel: MAccountDefault | MChannelDefault
+) {
+  return retryTransactionWrapper(() => {
+    return sequelizeTypescript.transaction(async t => {
+      const updatedActor = await deleteActorAvatarInstance(accountOrChannel.Actor, t)
+      await updatedActor.save({ transaction: t })
+
+      await sendUpdateActor(accountOrChannel, t)
+
+      return updatedActor.Avatar
+    })
+  })
+}
+
+type DownloadImageQueueTask = { fileUrl: string, filename: string }
+
+const downloadImageQueue = queue<DownloadImageQueueTask, Error>((task, cb) => {
+  downloadImage(task.fileUrl, CONFIG.STORAGE.ACTOR_IMAGES, task.filename, AVATARS_SIZE)
+    .then(() => cb())
+    .catch(err => cb(err))
+}, QUEUE_CONCURRENCY.ACTOR_PROCESS_IMAGE)
+
+function pushActorImageProcessInQueue (task: DownloadImageQueueTask) {
+  return new Promise<void>((res, rej) => {
+    downloadImageQueue.push(task, err => {
+      if (err) return rej(err)
+
+      return res()
+    })
+  })
+}
+
+// Unsafe so could returns paths that does not exist anymore
+const actorImagePathUnsafeCache = new LRUCache<string, string>({ max: LRU_CACHE.ACTOR_IMAGE_STATIC.MAX_SIZE })
+
+export {
+  actorImagePathUnsafeCache,
+  updateLocalActorAvatarFile,
+  deleteLocalActorAvatarFile,
+  pushActorImageProcessInQueue
+}