4 files changed, 9 insertions, 6 deletions

diff --git a/server/lib/activitypub/actors/shared/object-to-model-attributes.ts b/server/lib/activitypub/actors/shared/object-to-model-attributes.ts
index 66b22c952..f53b98448 100644
--- a/server/lib/activitypub/actors/shared/object-to-model-attributes.ts
+++ b/server/lib/activitypub/actors/shared/object-to-model-attributes.ts
@@ -1,5 +1,5 @@
-import { extname } from 'path'
 import { v4 as uuidv4 } from 'uuid'
+import { getLowercaseExtension } from '@server/helpers/core-utils'
 import { isActivityPubUrlValid } from '@server/helpers/custom-validators/activitypub/misc'
 import { MIMETYPES } from '@server/initializers/constants'
 import { ActorModel } from '@server/models/actor/actor'
@@ -43,7 +43,7 @@ function getImageInfoFromObject (actorObject: ActivityPubActor, type: ActorImage
   if (icon.mediaType) {
     extension = mimetypes.MIMETYPE_EXT[icon.mediaType]
   } else {
-    const tmp = extname(icon.url)
+    const tmp = getLowercaseExtension(icon.url)
 
     if (mimetypes.EXT_MIMETYPE[tmp] !== undefined) extension = tmp
   }
diff --git a/server/lib/job-queue/handlers/video-file-import.ts b/server/lib/job-queue/handlers/video-file-import.ts
index 8297a1571..048963033 100644
--- a/server/lib/job-queue/handlers/video-file-import.ts
+++ b/server/lib/job-queue/handlers/video-file-import.ts
@@ -1,6 +1,7 @@
 import * as Bull from 'bull'
 import { copy, stat } from 'fs-extra'
 import { extname } from 'path'
+import { getLowercaseExtension } from '@server/helpers/core-utils'
 import { createTorrentAndSetInfoHash } from '@server/helpers/webtorrent'
 import { generateVideoFilename, getVideoFilePath } from '@server/lib/video-paths'
 import { UserModel } from '@server/models/user/user'
@@ -55,7 +56,7 @@ async function updateVideoFile (video: MVideoFullLight, inputFilePath: string) {
   const { size } = await stat(inputFilePath)
   const fps = await getVideoFileFPS(inputFilePath)
 
-  const fileExt = extname(inputFilePath)
+  const fileExt = getLowercaseExtension(inputFilePath)
 
   const currentVideoFile = video.VideoFiles.find(videoFile => videoFile.resolution === videoFileResolution)
 
diff --git a/server/lib/job-queue/handlers/video-import.ts b/server/lib/job-queue/handlers/video-import.ts
index d71053e87..937f586c9 100644
--- a/server/lib/job-queue/handlers/video-import.ts
+++ b/server/lib/job-queue/handlers/video-import.ts
@@ -1,6 +1,7 @@
 import * as Bull from 'bull'
 import { move, remove, stat } from 'fs-extra'
 import { extname } from 'path'
+import { getLowercaseExtension } from '@server/helpers/core-utils'
 import { retryTransactionWrapper } from '@server/helpers/database-utils'
 import { YoutubeDL } from '@server/helpers/youtube-dl'
 import { isPostImportVideoAccepted } from '@server/lib/moderation'
@@ -119,7 +120,7 @@ async function processFile (downloader: () => Promise<string>, videoImport: MVid
     const duration = await getDurationFromVideoFile(tempVideoPath)
 
     // Prepare video file object for creation in database
-    const fileExt = extname(tempVideoPath)
+    const fileExt = getLowercaseExtension(tempVideoPath)
     const videoFileData = {
       extname: fileExt,
       resolution: videoFileResolution,
diff --git a/server/lib/local-actor.ts b/server/lib/local-actor.ts
index 55e77dd04..2d2bd43a1 100644
--- a/server/lib/local-actor.ts
+++ b/server/lib/local-actor.ts
@@ -1,8 +1,9 @@
 import 'multer'
 import { queue } from 'async'
 import * as LRUCache from 'lru-cache'
-import { extname, join } from 'path'
+import { join } from 'path'
 import { v4 as uuidv4 } from 'uuid'
+import { getLowercaseExtension } from '@server/helpers/core-utils'
 import { ActorModel } from '@server/models/actor/actor'
 import { ActivityPubActorType, ActorImageType } from '@shared/models'
 import { retryTransactionWrapper } from '../helpers/database-utils'
@@ -41,7 +42,7 @@ async function updateLocalActorImageFile (
     ? ACTOR_IMAGES_SIZE.AVATARS
     : ACTOR_IMAGES_SIZE.BANNERS
 
-  const extension = extname(imagePhysicalFile.filename)
+  const extension = getLowercaseExtension(imagePhysicalFile.filename)
 
   const imageName = uuidv4() + extension
   const destination = join(CONFIG.STORAGE.ACTOR_IMAGES, imageName)