Add email translations

Convert emails from Pug template to Handlebars because i18next doesn't
support Pug

server/core/helpers/custom-validators/users.ts

@@ -1,125 +1,104 @@
-import validator from 'validator'
+import { AVAILABLE_LOCALES } from '@peertube/peertube-core-utils'
 import { UserRole } from '@peertube/peertube-models'
+import validator from 'validator'
 import { isEmailEnabled } from '../../initializers/config.js'
 import { CONSTRAINTS_FIELDS, NSFW_POLICY_TYPES } from '../../initializers/constants.js'
 import { exists, isArray, isBooleanValid } from './misc.js'
 
 const USERS_CONSTRAINTS_FIELDS = CONSTRAINTS_FIELDS.USERS
 
-function isUserPasswordValid (value: string) {
+export function isUserPasswordValid (value: string) {
   return validator.default.isLength(value, USERS_CONSTRAINTS_FIELDS.PASSWORD)
 }
 
-function isUserPasswordValidOrEmpty (value: string) {
+export function isUserPasswordValidOrEmpty (value: string) {
   // Empty password is only possible if emailing is enabled.
   if (value === '') return isEmailEnabled()
 
   return isUserPasswordValid(value)
 }
 
-function isUserVideoQuotaValid (value: string) {
+export function isUserVideoQuotaValid (value: string) {
   return exists(value) && validator.default.isInt(value + '', USERS_CONSTRAINTS_FIELDS.VIDEO_QUOTA)
 }
 
-function isUserVideoQuotaDailyValid (value: string) {
+export function isUserVideoQuotaDailyValid (value: string) {
   return exists(value) && validator.default.isInt(value + '', USERS_CONSTRAINTS_FIELDS.VIDEO_QUOTA_DAILY)
 }
 
-function isUserUsernameValid (value: string) {
+export function isUserUsernameValid (value: string) {
   return exists(value) &&
     validator.default.matches(value, new RegExp(`^[a-z0-9_]+([a-z0-9_.-]+[a-z0-9_]+)?$`)) &&
     validator.default.isLength(value, USERS_CONSTRAINTS_FIELDS.USERNAME)
 }
 
-function isUserDisplayNameValid (value: string) {
+export function isUserDisplayNameValid (value: string) {
   return value === null || (exists(value) && validator.default.isLength(value, CONSTRAINTS_FIELDS.USERS.NAME))
 }
 
-function isUserDescriptionValid (value: string) {
+export function isUserDescriptionValid (value: string) {
   return value === null || (exists(value) && validator.default.isLength(value, CONSTRAINTS_FIELDS.USERS.DESCRIPTION))
 }
 
-function isUserEmailVerifiedValid (value: any) {
+export function isUserEmailVerifiedValid (value: any) {
   return isBooleanValid(value)
 }
 
 const nsfwPolicies = new Set(Object.values(NSFW_POLICY_TYPES))
-function isUserNSFWPolicyValid (value: any) {
+export function isUserNSFWPolicyValid (value: any) {
   return exists(value) && nsfwPolicies.has(value)
 }
 
-function isUserP2PEnabledValid (value: any) {
+export function isUserP2PEnabledValid (value: any) {
   return isBooleanValid(value)
 }
 
-function isUserVideosHistoryEnabledValid (value: any) {
+export function isUserVideosHistoryEnabledValid (value: any) {
   return isBooleanValid(value)
 }
 
-function isUserAutoPlayVideoValid (value: any) {
+export function isUserAutoPlayVideoValid (value: any) {
   return isBooleanValid(value)
 }
 
-function isUserVideoLanguages (value: any) {
+export function isUserVideoLanguages (value: any) {
   return value === null || (isArray(value) && value.length < CONSTRAINTS_FIELDS.USERS.VIDEO_LANGUAGES.max)
 }
 
-function isUserAdminFlagsValid (value: any) {
+export function isUserLanguage (value: any) {
+  return value === null || AVAILABLE_LOCALES.includes(value)
+}
+
+export function isUserAdminFlagsValid (value: any) {
   return exists(value) && validator.default.isInt('' + value)
 }
 
-function isUserBlockedValid (value: any) {
+export function isUserBlockedValid (value: any) {
   return isBooleanValid(value)
 }
 
-function isUserAutoPlayNextVideoValid (value: any) {
+export function isUserAutoPlayNextVideoValid (value: any) {
   return isBooleanValid(value)
 }
 
-function isUserAutoPlayNextVideoPlaylistValid (value: any) {
+export function isUserAutoPlayNextVideoPlaylistValid (value: any) {
   return isBooleanValid(value)
 }
 
-function isUserEmailPublicValid (value: any) {
+export function isUserEmailPublicValid (value: any) {
   return isBooleanValid(value)
 }
 
-function isUserNoModal (value: any) {
+export function isUserNoModal (value: any) {
   return isBooleanValid(value)
 }
 
-function isUserBlockedReasonValid (value: any) {
+export function isUserBlockedReasonValid (value: any) {
   return value === null || (exists(value) && validator.default.isLength(value, CONSTRAINTS_FIELDS.USERS.BLOCKED_REASON))
 }
 
-function isUserRoleValid (value: any) {
+export function isUserRoleValid (value: any) {
   return exists(value) &&
     validator.default.isInt('' + value) &&
     [ UserRole.ADMINISTRATOR, UserRole.MODERATOR, UserRole.USER ].includes(value)
 }
-
-// ---------------------------------------------------------------------------
-
-export {
-  isUserVideosHistoryEnabledValid,
-  isUserBlockedValid,
-  isUserPasswordValid,
-  isUserPasswordValidOrEmpty,
-  isUserVideoLanguages,
-  isUserBlockedReasonValid,
-  isUserRoleValid,
-  isUserVideoQuotaValid,
-  isUserVideoQuotaDailyValid,
-  isUserUsernameValid,
-  isUserAdminFlagsValid,
-  isUserEmailVerifiedValid,
-  isUserNSFWPolicyValid,
-  isUserP2PEnabledValid,
-  isUserAutoPlayVideoValid,
-  isUserAutoPlayNextVideoValid,
-  isUserAutoPlayNextVideoPlaylistValid,
-  isUserDisplayNameValid,
-  isUserDescriptionValid,
-  isUserEmailPublicValid,
-  isUserNoModal
-}