3 files changed, 23 insertions, 8 deletions

diff --git a/server/helpers/activitypub.ts b/server/helpers/activitypub.ts
index bcbd9be59..79b76fa0b 100644
--- a/server/helpers/activitypub.ts
+++ b/server/helpers/activitypub.ts
@@ -1,7 +1,7 @@
 import * as Bluebird from 'bluebird'
 import * as validator from 'validator'
 import { ResultList } from '../../shared/models'
-import { Activity, ActivityPubActor } from '../../shared/models/activitypub'
+import { Activity } from '../../shared/models/activitypub'
 import { ACTIVITY_PUB } from '../initializers'
 import { ActorModel } from '../models/activitypub/actor'
 import { signJsonLDObject } from './peertube-crypto'
@@ -106,10 +106,10 @@ function buildSignedActivity (byActor: ActorModel, data: Object) {
   return signJsonLDObject(byActor, activity) as Promise<Activity>
 }
 
-function getActorUrl (activityActor: string | ActivityPubActor) {
-  if (typeof activityActor === 'string') return activityActor
+function getAPUrl (activity: string | { id: string }) {
+  if (typeof activity === 'string') return activity
 
-  return activityActor.id
+  return activity.id
 }
 
 function checkUrlsSameHost (url1: string, url2: string) {
@@ -123,7 +123,7 @@ function checkUrlsSameHost (url1: string, url2: string) {
 
 export {
   checkUrlsSameHost,
-  getActorUrl,
+  getAPUrl,
   activityPubContextify,
   activityPubCollectionPagination,
   buildSignedActivity
diff --git a/server/helpers/ffmpeg-utils.ts b/server/helpers/ffmpeg-utils.ts
index 8b9045038..b59e7e40e 100644
--- a/server/helpers/ffmpeg-utils.ts
+++ b/server/helpers/ffmpeg-utils.ts
@@ -1,7 +1,7 @@
 import * as ffmpeg from 'fluent-ffmpeg'
 import { join } from 'path'
 import { getTargetBitrate, VideoResolution } from '../../shared/models/videos'
-import { CONFIG, FFMPEG_NICE, VIDEO_TRANSCODING_FPS } from '../initializers'
+import { CONFIG, FFMPEG_NICE, VIDEO_TRANSCODING_FPS } from '../initializers/constants'
 import { processImage } from './image-utils'
 import { logger } from './logger'
 import { checkFFmpegEncoders } from '../initializers/checker-before-init'
diff --git a/server/helpers/image-utils.ts b/server/helpers/image-utils.ts
index 3eaa674ed..da3285b13 100644
--- a/server/helpers/image-utils.ts
+++ b/server/helpers/image-utils.ts
@@ -1,13 +1,28 @@
 import 'multer'
 import * as sharp from 'sharp'
-import { remove } from 'fs-extra'
+import { move, remove } from 'fs-extra'
 
 async function processImage (
   physicalFile: { path: string },
   destination: string,
   newSize: { width: number, height: number }
 ) {
-  await sharp(physicalFile.path)
+  if (physicalFile.path === destination) {
+    throw new Error('Sharp needs an input path different that the output path.')
+  }
+
+  const sharpInstance = sharp(physicalFile.path)
+  const metadata = await sharpInstance.metadata()
+
+  // No need to resize
+  if (metadata.width === newSize.width && metadata.height === newSize.height) {
+    await move(physicalFile.path, destination, { overwrite: true })
+    return
+  }
+
+  await remove(destination)
+
+  await sharpInstance
     .resize(newSize.width, newSize.height)
     .toFile(destination)