1 files changed, 23 insertions, 0 deletions

diff --git a/server/helpers/custom-validators/user-notifications.ts b/server/helpers/custom-validators/user-notifications.ts
new file mode 100644
index 000000000..02ea3bbc2
--- /dev/null
+++ b/server/helpers/custom-validators/user-notifications.ts
@@ -0,0 +1,23 @@
+import { exists } from './misc'
+import * as validator from 'validator'
+import { UserNotificationType } from '../../../shared/models/users'
+import { UserNotificationSettingValue } from '../../../shared/models/users/user-notification-setting.model'
+
+function isUserNotificationTypeValid (value: any) {
+  return exists(value) && validator.isInt('' + value) && UserNotificationType[value] !== undefined
+}
+
+function isUserNotificationSettingValid (value: any) {
+  return exists(value) &&
+    validator.isInt('' + value) && (
+      value === UserNotificationSettingValue.NONE ||
+      value === UserNotificationSettingValue.WEB ||
+      value === UserNotificationSettingValue.EMAIL ||
+      value === (UserNotificationSettingValue.WEB | UserNotificationSettingValue.EMAIL)
+    )
+}
+
+export {
+  isUserNotificationSettingValid,
+  isUserNotificationTypeValid
+}