1 files changed, 34 insertions, 0 deletions

diff --git a/server/helpers/custom-validators/users.ts b/server/helpers/custom-validators/users.ts
new file mode 100644
index 000000000..8fd2dac4f
--- /dev/null
+++ b/server/helpers/custom-validators/users.ts
@@ -0,0 +1,34 @@
+import { values } from 'lodash'
+import expressValidator = require('express-validator')
+// TODO: use .validator when express-validator typing will have validator field
+const validator = expressValidator['validator']
+
+import { CONSTRAINTS_FIELDS, USER_ROLES } from '../../initializers'
+const USERS_CONSTRAINTS_FIELDS = CONSTRAINTS_FIELDS.USERS
+
+function isUserPasswordValid (value) {
+  return validator.isLength(value, USERS_CONSTRAINTS_FIELDS.PASSWORD)
+}
+
+function isUserRoleValid (value) {
+  return values(USER_ROLES).indexOf(value) !== -1
+}
+
+function isUserUsernameValid (value) {
+  const max = USERS_CONSTRAINTS_FIELDS.USERNAME.max
+  const min = USERS_CONSTRAINTS_FIELDS.USERNAME.min
+  return validator.matches(value, new RegExp(`^[a-zA-Z0-9._]{${min},${max}}$`))
+}
+
+function isUserDisplayNSFWValid (value) {
+  return validator.isBoolean(value)
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  isUserPasswordValid,
+  isUserRoleValid,
+  isUserUsernameValid,
+  isUserDisplayNSFWValid
+}