Merge remote-tracking branch 'parent/main' into upstream-20231116

app/helpers/registration_helper.rb

@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+module RegistrationHelper
+  extend ActiveSupport::Concern
+
+  def allowed_registration?(remote_ip, invite)
+    !Rails.configuration.x.single_user_mode && !omniauth_only? && (registrations_open? || invite&.valid_for_use?) && !ip_blocked?(remote_ip)
+  end
+
+  def registrations_open?
+    Setting.registrations_mode != 'none'
+  end
+
+  def omniauth_only?
+    ENV['OMNIAUTH_ONLY'] == 'true'
+  end
+
+  def ip_blocked?(remote_ip)
+    IpBlock.where(severity: :sign_up_block).exists?(['ip >>= ?', remote_ip.to_s])
+  end
+end