2 files changed, 8 insertions, 7 deletions

diff --git a/server/helpers/custom-validators/activitypub/videos.ts b/server/helpers/custom-validators/activitypub/videos.ts
index 12c672fd2..2ed2988f5 100644
--- a/server/helpers/custom-validators/activitypub/videos.ts
+++ b/server/helpers/custom-validators/activitypub/videos.ts
@@ -49,14 +49,14 @@ function isVideoTorrentObjectValid (video: any) {
     isActivityPubVideoDurationValid(video.duration) &&
     isUUIDValid(video.uuid) &&
     setValidRemoteTags(video) &&
-    isRemoteIdentifierValid(video.category) &&
-    isRemoteIdentifierValid(video.licence) &&
+    (!video.category || isRemoteIdentifierValid(video.category)) &&
+    (!video.licence || isRemoteIdentifierValid(video.licence)) &&
     (!video.language || isRemoteIdentifierValid(video.language)) &&
     isVideoViewsValid(video.views) &&
     isVideoNSFWValid(video.nsfw) &&
     isDateValid(video.published) &&
     isDateValid(video.updated) &&
-    isRemoteVideoContentValid(video.mediaType, video.content) &&
+    (!video.content || isRemoteVideoContentValid(video.mediaType, video.content)) &&
     isRemoteVideoIconValid(video.icon) &&
     setValidRemoteVideoUrls(video) &&
     video.url.length !== 0
diff --git a/server/helpers/custom-validators/videos.ts b/server/helpers/custom-validators/videos.ts
index f13178c54..4fc460699 100644
--- a/server/helpers/custom-validators/videos.ts
+++ b/server/helpers/custom-validators/videos.ts
@@ -9,16 +9,17 @@ import { VIDEO_PRIVACIES } from '../../initializers/constants'
 import { database as db } from '../../initializers/database'
 import { VideoInstance } from '../../models/video/video-interface'
 import { exists, isArray } from './misc'
+import isInt = require('validator/lib/isInt')
 
 const VIDEOS_CONSTRAINTS_FIELDS = CONSTRAINTS_FIELDS.VIDEOS
 const VIDEO_ABUSES_CONSTRAINTS_FIELDS = CONSTRAINTS_FIELDS.VIDEO_ABUSES
 
 function isVideoCategoryValid (value: number) {
-  return VIDEO_CATEGORIES[value] !== undefined
+  return value === null || VIDEO_CATEGORIES[value] !== undefined
 }
 
 function isVideoLicenceValid (value: number) {
-  return VIDEO_LICENCES[value] !== undefined
+  return value === null || VIDEO_LICENCES[value] !== undefined
 }
 
 function isVideoLanguageValid (value: number) {
@@ -38,7 +39,7 @@ function isVideoTruncatedDescriptionValid (value: string) {
 }
 
 function isVideoDescriptionValid (value: string) {
-  return exists(value) && validator.isLength(value, VIDEOS_CONSTRAINTS_FIELDS.DESCRIPTION)
+  return value === null || (exists(value) && validator.isLength(value, VIDEOS_CONSTRAINTS_FIELDS.DESCRIPTION))
 }
 
 function isVideoNameValid (value: string) {
@@ -84,7 +85,7 @@ function isVideoFile (files: { [ fieldname: string ]: Express.Multer.File[] } |
 }
 
 function isVideoPrivacyValid (value: string) {
-  return VIDEO_PRIVACIES[value] !== undefined
+  return validator.isInt(value + '') && VIDEO_PRIVACIES[value] !== undefined
 }
 
 function isVideoFileInfoHashValid (value: string) {