4 files changed, 42 insertions, 9 deletions

diff --git a/server/helpers/custom-validators/misc.ts b/server/helpers/custom-validators/misc.ts
index 3dc5504e3..b3ab3ac64 100644
--- a/server/helpers/custom-validators/misc.ts
+++ b/server/helpers/custom-validators/misc.ts
@@ -103,7 +103,13 @@ function checkMimetypeRegex (fileMimeType: string, mimeTypeRegex: string) {
 // ---------------------------------------------------------------------------
 
 function toCompleteUUID (value: string) {
-  if (isShortUUID(value)) return shortToUUID(value)
+  if (isShortUUID(value)) {
+    try {
+      return shortToUUID(value)
+    } catch {
+      return null
+    }
+  }
 
   return value
 }
diff --git a/server/helpers/custom-validators/user-registration.ts b/server/helpers/custom-validators/user-registration.ts
new file mode 100644
index 000000000..9da0bb08a
--- /dev/null
+++ b/server/helpers/custom-validators/user-registration.ts
@@ -0,0 +1,25 @@
+import validator from 'validator'
+import { CONSTRAINTS_FIELDS, USER_REGISTRATION_STATES } from '../../initializers/constants'
+import { exists } from './misc'
+
+const USER_REGISTRATIONS_CONSTRAINTS_FIELDS = CONSTRAINTS_FIELDS.USER_REGISTRATIONS
+
+function isRegistrationStateValid (value: string) {
+  return exists(value) && USER_REGISTRATION_STATES[value] !== undefined
+}
+
+function isRegistrationModerationResponseValid (value: string) {
+  return exists(value) && validator.isLength(value, USER_REGISTRATIONS_CONSTRAINTS_FIELDS.MODERATOR_MESSAGE)
+}
+
+function isRegistrationReasonValid (value: string) {
+  return exists(value) && validator.isLength(value, USER_REGISTRATIONS_CONSTRAINTS_FIELDS.REASON_MESSAGE)
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  isRegistrationStateValid,
+  isRegistrationModerationResponseValid,
+  isRegistrationReasonValid
+}
diff --git a/server/helpers/custom-validators/video-captions.ts b/server/helpers/custom-validators/video-captions.ts
index 59ba005fe..d5b09ea03 100644
--- a/server/helpers/custom-validators/video-captions.ts
+++ b/server/helpers/custom-validators/video-captions.ts
@@ -8,10 +8,11 @@ function isVideoCaptionLanguageValid (value: any) {
   return exists(value) && VIDEO_LANGUAGES[value] !== undefined
 }
 
-const videoCaptionTypesRegex = Object.keys(MIMETYPES.VIDEO_CAPTIONS.MIMETYPE_EXT)
-                                .concat([ 'application/octet-stream' ]) // MacOS sends application/octet-stream
-                                .map(m => `(${m})`)
-                                .join('|')
+// MacOS sends application/octet-stream
+const videoCaptionTypesRegex = [ ...Object.keys(MIMETYPES.VIDEO_CAPTIONS.MIMETYPE_EXT), 'application/octet-stream' ]
+  .map(m => `(${m})`)
+  .join('|')
+
 function isVideoCaptionFile (files: UploadFilesForCheck, field: string) {
   return isFileValid({
     files,
diff --git a/server/helpers/custom-validators/video-imports.ts b/server/helpers/custom-validators/video-imports.ts
index af93aea56..da8962cb6 100644
--- a/server/helpers/custom-validators/video-imports.ts
+++ b/server/helpers/custom-validators/video-imports.ts
@@ -22,10 +22,11 @@ function isVideoImportStateValid (value: any) {
   return exists(value) && VIDEO_IMPORT_STATES[value] !== undefined
 }
 
-const videoTorrentImportRegex = Object.keys(MIMETYPES.TORRENT.MIMETYPE_EXT)
-                                      .concat([ 'application/octet-stream' ]) // MacOS sends application/octet-stream
-                                      .map(m => `(${m})`)
-                                      .join('|')
+// MacOS sends application/octet-stream
+const videoTorrentImportRegex = [ ...Object.keys(MIMETYPES.TORRENT.MIMETYPE_EXT), 'application/octet-stream' ]
+  .map(m => `(${m})`)
+  .join('|')
+
 function isVideoImportTorrentFile (files: UploadFilesForCheck) {
   return isFileValid({
     files,