From f7a30e2fae3199a82e2ad23bb9d761d1fe1be8de Mon Sep 17 00:00:00 2001
From: Eugen Rochko <eugen@zeonfederated.com>
Date: Mon, 5 Jun 2017 01:03:45 +0200
Subject: Added support for configurable reserved usernames (fix of #1382)
 (#3566)

* Added support for configurable reserved usernames

* Added reserved usernames from mastodon issue 1355

* Fix reserved usernames
---
 app/models/account.rb                  |  2 +-
 app/validators/unreserved_validator.rb | 15 +++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 app/validators/unreserved_validator.rb

(limited to 'app')

diff --git a/app/models/account.rb b/app/models/account.rb
index 5b0d2d65c..918d5b0f1 100644
--- a/app/models/account.rb
+++ b/app/models/account.rb
@@ -56,7 +56,7 @@ class Account < ApplicationRecord
 
   # Local user validations
   with_options if: :local? do
-    validates :username, format: { with: /\A[a-z0-9_]+\z/i }, uniqueness: { scope: :domain, case_sensitive: false }, length: { maximum: 30 }
+    validates :username, format: { with: /\A[a-z0-9_]+\z/i }, uniqueness: { scope: :domain, case_sensitive: false }, length: { maximum: 30 }, unreserved: true
     validates :display_name, length: { maximum: 30 }
     validates :note, length: { maximum: 160 }
   end
diff --git a/app/validators/unreserved_validator.rb b/app/validators/unreserved_validator.rb
new file mode 100644
index 000000000..4e5b9dafc
--- /dev/null
+++ b/app/validators/unreserved_validator.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class UnreservedValidator < ActiveModel::EachValidator
+  def validate_each(record, attribute, value)
+    return if value.nil?
+    record.errors.add(attribute, I18n.t('accounts.reserved_username')) if reserved_username?(value)
+  end
+
+  private
+
+  def reserved_username?(value)
+    return false unless Setting.reserved_usernames
+    Setting.reserved_usernames.include?(value.downcase)
+  end
+end
-- 
cgit