From e258b4cb64479fffbede4763dffe0379d0798f8e Mon Sep 17 00:00:00 2001
From: Emelia Smith <ThisIsMissEm@users.noreply.github.com>
Date: Wed, 2 Aug 2023 19:32:48 +0200
Subject: [PATCH] Refactor: replace whitelist_mode mentions with
 limited_federation_mode (#26252)

---
 .rubocop_todo.yml                                          | 2 +-
 app/controllers/accounts_controller.rb                     | 2 +-
 app/controllers/admin/instances_controller.rb              | 2 +-
 app/controllers/api/base_controller.rb                     | 4 ++--
 app/controllers/api/v1/instances/activity_controller.rb    | 4 ++--
 .../api/v1/instances/domain_blocks_controller.rb           | 2 +-
 .../api/v1/instances/extended_descriptions_controller.rb   | 4 ++--
 app/controllers/api/v1/instances/peers_controller.rb       | 6 +++---
 .../api/v1/instances/privacy_policies_controller.rb        | 2 +-
 app/controllers/api/v1/instances/rules_controller.rb       | 4 ++--
 .../api/v1/instances/translation_languages_controller.rb   | 2 +-
 app/controllers/api/v1/instances_controller.rb             | 4 ++--
 app/controllers/api/v1/peers/search_controller.rb          | 4 ++--
 app/controllers/application_controller.rb                  | 4 ++--
 app/controllers/concerns/account_owned_concern.rb          | 2 +-
 app/controllers/concerns/api_caching_concern.rb            | 2 +-
 app/controllers/follower_accounts_controller.rb            | 2 +-
 app/controllers/following_accounts_controller.rb           | 2 +-
 app/controllers/media_controller.rb                        | 4 ++--
 app/controllers/media_proxy_controller.rb                  | 2 +-
 app/controllers/statuses_controller.rb                     | 2 +-
 app/controllers/tags_controller.rb                         | 4 ++--
 app/helpers/domain_control_helper.rb                       | 6 +++---
 app/serializers/initial_state_serializer.rb                | 2 +-
 app/services/concerns/payloadable.rb                       | 2 +-
 app/services/unallow_domain_service.rb                     | 2 +-
 app/views/admin/instances/index.html.haml                  | 6 +++---
 app/views/admin/instances/show.html.haml                   | 2 +-
 config/initializers/2_limited_federation_mode.rb           | 7 +++++++
 config/initializers/2_whitelist_mode.rb                    | 5 -----
 config/navigation.rb                                       | 4 ++--
 spec/requests/cache_spec.rb                                | 6 +++---
 spec/services/unallow_domain_service_spec.rb               | 4 ++--
 33 files changed, 57 insertions(+), 55 deletions(-)
 create mode 100644 config/initializers/2_limited_federation_mode.rb
 delete mode 100644 config/initializers/2_whitelist_mode.rb

diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 972b496d5c..b942165129 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -589,7 +589,7 @@ Style/FetchEnvVar:
     - 'app/lib/translation_service.rb'
     - 'config/environments/development.rb'
     - 'config/environments/production.rb'
-    - 'config/initializers/2_whitelist_mode.rb'
+    - 'config/initializers/2_limited_federation_mode.rb'
     - 'config/initializers/blacklists.rb'
     - 'config/initializers/cache_buster.rb'
     - 'config/initializers/content_security_policy.rb'
diff --git a/app/controllers/accounts_controller.rb b/app/controllers/accounts_controller.rb
index 0090ef7ec5..936973fb2a 100644
--- a/app/controllers/accounts_controller.rb
+++ b/app/controllers/accounts_controller.rb
@@ -12,7 +12,7 @@ class AccountsController < ApplicationController
   before_action :require_account_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
 
   skip_around_action :set_locale, if: -> { [:json, :rss].include?(request.format&.to_sym) }
-  skip_before_action :require_functional!, unless: :whitelist_mode?
+  skip_before_action :require_functional!, unless: :limited_federation_mode?
 
   def show
     respond_to do |format|
diff --git a/app/controllers/admin/instances_controller.rb b/app/controllers/admin/instances_controller.rb
index 5194057263..e5a55de06d 100644
--- a/app/controllers/admin/instances_controller.rb
+++ b/app/controllers/admin/instances_controller.rb
@@ -65,7 +65,7 @@ module Admin
     end
 
     def filtered_instances
-      InstanceFilter.new(whitelist_mode? ? { allowed: true } : filter_params).results
+      InstanceFilter.new(limited_federation_mode? ? { allowed: true } : filter_params).results
     end
 
     def filter_params
diff --git a/app/controllers/api/base_controller.rb b/app/controllers/api/base_controller.rb
index 2629ab782f..c764b45101 100644
--- a/app/controllers/api/base_controller.rb
+++ b/app/controllers/api/base_controller.rb
@@ -8,7 +8,7 @@ class Api::BaseController < ApplicationController
   include AccessTokenTrackingConcern
   include ApiCachingConcern
 
-  skip_before_action :require_functional!, unless: :whitelist_mode?
+  skip_before_action :require_functional!, unless: :limited_federation_mode?
 
   before_action :require_authenticated_user!, if: :disallow_unauthenticated_api_access?
   before_action :require_not_suspended!
@@ -150,7 +150,7 @@ class Api::BaseController < ApplicationController
   end
 
   def disallow_unauthenticated_api_access?
-    ENV['DISALLOW_UNAUTHENTICATED_API_ACCESS'] == 'true' || Rails.configuration.x.whitelist_mode
+    ENV['DISALLOW_UNAUTHENTICATED_API_ACCESS'] == 'true' || Rails.configuration.x.limited_federation_mode
   end
 
   private
diff --git a/app/controllers/api/v1/instances/activity_controller.rb b/app/controllers/api/v1/instances/activity_controller.rb
index 3d55d990af..9da77f8dab 100644
--- a/app/controllers/api/v1/instances/activity_controller.rb
+++ b/app/controllers/api/v1/instances/activity_controller.rb
@@ -3,7 +3,7 @@
 class Api::V1::Instances::ActivityController < Api::BaseController
   before_action :require_enabled_api!
 
-  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
+  skip_before_action :require_authenticated_user!, unless: :limited_federation_mode?
 
   vary_by ''
 
@@ -33,6 +33,6 @@ class Api::V1::Instances::ActivityController < Api::BaseController
   end
 
   def require_enabled_api!
-    head 404 unless Setting.activity_api_enabled && !whitelist_mode?
+    head 404 unless Setting.activity_api_enabled && !limited_federation_mode?
   end
 end
diff --git a/app/controllers/api/v1/instances/domain_blocks_controller.rb b/app/controllers/api/v1/instances/domain_blocks_controller.rb
index e954c45897..c91234e088 100644
--- a/app/controllers/api/v1/instances/domain_blocks_controller.rb
+++ b/app/controllers/api/v1/instances/domain_blocks_controller.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class Api::V1::Instances::DomainBlocksController < Api::BaseController
-  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
+  skip_before_action :require_authenticated_user!, unless: :limited_federation_mode?
 
   before_action :require_enabled_api!
   before_action :set_domain_blocks
diff --git a/app/controllers/api/v1/instances/extended_descriptions_controller.rb b/app/controllers/api/v1/instances/extended_descriptions_controller.rb
index a0665725bd..376fec9066 100644
--- a/app/controllers/api/v1/instances/extended_descriptions_controller.rb
+++ b/app/controllers/api/v1/instances/extended_descriptions_controller.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class Api::V1::Instances::ExtendedDescriptionsController < Api::BaseController
-  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
+  skip_before_action :require_authenticated_user!, unless: :limited_federation_mode?
   skip_around_action :set_locale
 
   before_action :set_extended_description
@@ -10,7 +10,7 @@ class Api::V1::Instances::ExtendedDescriptionsController < Api::BaseController
 
   # Override `current_user` to avoid reading session cookies unless in whitelist mode
   def current_user
-    super if whitelist_mode?
+    super if limited_federation_mode?
   end
 
   def show
diff --git a/app/controllers/api/v1/instances/peers_controller.rb b/app/controllers/api/v1/instances/peers_controller.rb
index 23096650e6..08a982f227 100644
--- a/app/controllers/api/v1/instances/peers_controller.rb
+++ b/app/controllers/api/v1/instances/peers_controller.rb
@@ -3,14 +3,14 @@
 class Api::V1::Instances::PeersController < Api::BaseController
   before_action :require_enabled_api!
 
-  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
+  skip_before_action :require_authenticated_user!, unless: :limited_federation_mode?
   skip_around_action :set_locale
 
   vary_by ''
 
   # Override `current_user` to avoid reading session cookies unless in whitelist mode
   def current_user
-    super if whitelist_mode?
+    super if limited_federation_mode?
   end
 
   def index
@@ -21,6 +21,6 @@ class Api::V1::Instances::PeersController < Api::BaseController
   private
 
   def require_enabled_api!
-    head 404 unless Setting.peers_api_enabled && !whitelist_mode?
+    head 404 unless Setting.peers_api_enabled && !limited_federation_mode?
   end
 end
diff --git a/app/controllers/api/v1/instances/privacy_policies_controller.rb b/app/controllers/api/v1/instances/privacy_policies_controller.rb
index 36889f7335..f5b1b4ec5f 100644
--- a/app/controllers/api/v1/instances/privacy_policies_controller.rb
+++ b/app/controllers/api/v1/instances/privacy_policies_controller.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class Api::V1::Instances::PrivacyPoliciesController < Api::BaseController
-  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
+  skip_before_action :require_authenticated_user!, unless: :limited_federation_mode?
 
   before_action :set_privacy_policy
 
diff --git a/app/controllers/api/v1/instances/rules_controller.rb b/app/controllers/api/v1/instances/rules_controller.rb
index d3eeca3262..2f71984b05 100644
--- a/app/controllers/api/v1/instances/rules_controller.rb
+++ b/app/controllers/api/v1/instances/rules_controller.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class Api::V1::Instances::RulesController < Api::BaseController
-  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
+  skip_before_action :require_authenticated_user!, unless: :limited_federation_mode?
   skip_around_action :set_locale
 
   before_action :set_rules
@@ -10,7 +10,7 @@ class Api::V1::Instances::RulesController < Api::BaseController
 
   # Override `current_user` to avoid reading session cookies unless in whitelist mode
   def current_user
-    super if whitelist_mode?
+    super if limited_federation_mode?
   end
 
   def index
diff --git a/app/controllers/api/v1/instances/translation_languages_controller.rb b/app/controllers/api/v1/instances/translation_languages_controller.rb
index c4680cccb8..78423e40e4 100644
--- a/app/controllers/api/v1/instances/translation_languages_controller.rb
+++ b/app/controllers/api/v1/instances/translation_languages_controller.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class Api::V1::Instances::TranslationLanguagesController < Api::BaseController
-  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
+  skip_before_action :require_authenticated_user!, unless: :limited_federation_mode?
 
   before_action :set_languages
 
diff --git a/app/controllers/api/v1/instances_controller.rb b/app/controllers/api/v1/instances_controller.rb
index 5a6701ff96..df4a14af15 100644
--- a/app/controllers/api/v1/instances_controller.rb
+++ b/app/controllers/api/v1/instances_controller.rb
@@ -1,14 +1,14 @@
 # frozen_string_literal: true
 
 class Api::V1::InstancesController < Api::BaseController
-  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
+  skip_before_action :require_authenticated_user!, unless: :limited_federation_mode?
   skip_around_action :set_locale
 
   vary_by ''
 
   # Override `current_user` to avoid reading session cookies unless in whitelist mode
   def current_user
-    super if whitelist_mode?
+    super if limited_federation_mode?
   end
 
   def show
diff --git a/app/controllers/api/v1/peers/search_controller.rb b/app/controllers/api/v1/peers/search_controller.rb
index bd72b985f6..2c0eacdcae 100644
--- a/app/controllers/api/v1/peers/search_controller.rb
+++ b/app/controllers/api/v1/peers/search_controller.rb
@@ -4,7 +4,7 @@ class Api::V1::Peers::SearchController < Api::BaseController
   before_action :require_enabled_api!
   before_action :set_domains
 
-  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
+  skip_before_action :require_authenticated_user!, unless: :limited_federation_mode?
   skip_around_action :set_locale
 
   vary_by ''
@@ -17,7 +17,7 @@ class Api::V1::Peers::SearchController < Api::BaseController
   private
 
   def require_enabled_api!
-    head 404 unless Setting.peers_api_enabled && !whitelist_mode?
+    head 404 unless Setting.peers_api_enabled && !limited_federation_mode?
   end
 
   def set_domains
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 66886b4519..975315e247 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -19,7 +19,7 @@ class ApplicationController < ActionController::Base
   helper_method :use_seamless_external_login?
   helper_method :omniauth_only?
   helper_method :sso_account_settings
-  helper_method :whitelist_mode?
+  helper_method :limited_federation_mode?
   helper_method :body_class_string
   helper_method :skip_csrf_meta_tags?
 
@@ -52,7 +52,7 @@ class ApplicationController < ActionController::Base
   private
 
   def authorized_fetch_mode?
-    ENV['AUTHORIZED_FETCH'] == 'true' || Rails.configuration.x.whitelist_mode
+    ENV['AUTHORIZED_FETCH'] == 'true' || Rails.configuration.x.limited_federation_mode
   end
 
   def public_fetch_mode?
diff --git a/app/controllers/concerns/account_owned_concern.rb b/app/controllers/concerns/account_owned_concern.rb
index 25149d03fb..3fc0938bfc 100644
--- a/app/controllers/concerns/account_owned_concern.rb
+++ b/app/controllers/concerns/account_owned_concern.rb
@@ -4,7 +4,7 @@ module AccountOwnedConcern
   extend ActiveSupport::Concern
 
   included do
-    before_action :authenticate_user!, if: -> { whitelist_mode? && request.format != :json }
+    before_action :authenticate_user!, if: -> { limited_federation_mode? && request.format != :json }
     before_action :set_account, if: :account_required?
     before_action :check_account_approval, if: :account_required?
     before_action :check_account_suspension, if: :account_required?
diff --git a/app/controllers/concerns/api_caching_concern.rb b/app/controllers/concerns/api_caching_concern.rb
index 705abce80f..12264d514e 100644
--- a/app/controllers/concerns/api_caching_concern.rb
+++ b/app/controllers/concerns/api_caching_concern.rb
@@ -8,6 +8,6 @@ module ApiCachingConcern
   end
 
   def cache_even_if_authenticated!
-    expires_in(5.minutes, public: true, stale_while_revalidate: 30.seconds, stale_if_error: 1.day) unless whitelist_mode?
+    expires_in(5.minutes, public: true, stale_while_revalidate: 30.seconds, stale_if_error: 1.day) unless limited_federation_mode?
   end
 end
diff --git a/app/controllers/follower_accounts_controller.rb b/app/controllers/follower_accounts_controller.rb
index f35af5903c..ffdbd01802 100644
--- a/app/controllers/follower_accounts_controller.rb
+++ b/app/controllers/follower_accounts_controller.rb
@@ -10,7 +10,7 @@ class FollowerAccountsController < ApplicationController
   before_action :require_account_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
 
   skip_around_action :set_locale, if: -> { request.format == :json }
-  skip_before_action :require_functional!, unless: :whitelist_mode?
+  skip_before_action :require_functional!, unless: :limited_federation_mode?
 
   def index
     respond_to do |format|
diff --git a/app/controllers/following_accounts_controller.rb b/app/controllers/following_accounts_controller.rb
index 2aa31bdf08..cce296f9fd 100644
--- a/app/controllers/following_accounts_controller.rb
+++ b/app/controllers/following_accounts_controller.rb
@@ -10,7 +10,7 @@ class FollowingAccountsController < ApplicationController
   before_action :require_account_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
 
   skip_around_action :set_locale, if: -> { request.format == :json }
-  skip_before_action :require_functional!, unless: :whitelist_mode?
+  skip_before_action :require_functional!, unless: :limited_federation_mode?
 
   def index
     respond_to do |format|
diff --git a/app/controllers/media_controller.rb b/app/controllers/media_controller.rb
index 3bf5b7eba7..53eee40012 100644
--- a/app/controllers/media_controller.rb
+++ b/app/controllers/media_controller.rb
@@ -3,9 +3,9 @@
 class MediaController < ApplicationController
   include Authorization
 
-  skip_before_action :require_functional!, unless: :whitelist_mode?
+  skip_before_action :require_functional!, unless: :limited_federation_mode?
 
-  before_action :authenticate_user!, if: :whitelist_mode?
+  before_action :authenticate_user!, if: :limited_federation_mode?
   before_action :set_media_attachment
   before_action :verify_permitted_status!
   before_action :check_playable, only: :player
diff --git a/app/controllers/media_proxy_controller.rb b/app/controllers/media_proxy_controller.rb
index 8d480d704e..c4230d62c3 100644
--- a/app/controllers/media_proxy_controller.rb
+++ b/app/controllers/media_proxy_controller.rb
@@ -8,7 +8,7 @@ class MediaProxyController < ApplicationController
 
   skip_before_action :require_functional!
 
-  before_action :authenticate_user!, if: :whitelist_mode?
+  before_action :authenticate_user!, if: :limited_federation_mode?
 
   rescue_from ActiveRecord::RecordInvalid, with: :not_found
   rescue_from Mastodon::UnexpectedResponseError, with: :not_found
diff --git a/app/controllers/statuses_controller.rb b/app/controllers/statuses_controller.rb
index 1ff0fbd600..effaba3630 100644
--- a/app/controllers/statuses_controller.rb
+++ b/app/controllers/statuses_controller.rb
@@ -17,7 +17,7 @@ class StatusesController < ApplicationController
   after_action :set_link_headers
 
   skip_around_action :set_locale, if: -> { request.format == :json }
-  skip_before_action :require_functional!, only: [:show, :embed], unless: :whitelist_mode?
+  skip_before_action :require_functional!, only: [:show, :embed], unless: :limited_federation_mode?
 
   content_security_policy only: :embed do |policy|
     policy.frame_ancestors(false)
diff --git a/app/controllers/tags_controller.rb b/app/controllers/tags_controller.rb
index 7e249dbea5..2007fe8462 100644
--- a/app/controllers/tags_controller.rb
+++ b/app/controllers/tags_controller.rb
@@ -10,13 +10,13 @@ class TagsController < ApplicationController
   vary_by -> { public_fetch_mode? ? 'Accept, Accept-Language, Cookie' : 'Accept, Accept-Language, Cookie, Signature' }
 
   before_action :require_account_signature!, if: -> { request.format == :json && authorized_fetch_mode? }
-  before_action :authenticate_user!, if: :whitelist_mode?
+  before_action :authenticate_user!, if: :limited_federation_mode?
   before_action :set_local
   before_action :set_tag
   before_action :set_statuses, if: -> { request.format == :rss }
   before_action :set_instance_presenter
 
-  skip_before_action :require_functional!, unless: :whitelist_mode?
+  skip_before_action :require_functional!, unless: :limited_federation_mode?
 
   def show
     respond_to do |format|
diff --git a/app/helpers/domain_control_helper.rb b/app/helpers/domain_control_helper.rb
index 6fce7eb1f5..2703c1b8f8 100644
--- a/app/helpers/domain_control_helper.rb
+++ b/app/helpers/domain_control_helper.rb
@@ -10,14 +10,14 @@ module DomainControlHelper
                uri_or_domain
              end
 
-    if whitelist_mode?
+    if limited_federation_mode?
       !DomainAllow.allowed?(domain)
     else
       DomainBlock.blocked?(domain)
     end
   end
 
-  def whitelist_mode?
-    Rails.configuration.x.whitelist_mode
+  def limited_federation_mode?
+    Rails.configuration.x.limited_federation_mode
   end
 end
diff --git a/app/serializers/initial_state_serializer.rb b/app/serializers/initial_state_serializer.rb
index b90db4f58f..bda06ef1f1 100644
--- a/app/serializers/initial_state_serializer.rb
+++ b/app/serializers/initial_state_serializer.rb
@@ -22,7 +22,7 @@ class InitialStateSerializer < ActiveModel::Serializer
       repository: Mastodon::Version.repository,
       source_url: instance_presenter.source_url,
       version: instance_presenter.version,
-      limited_federation_mode: Rails.configuration.x.whitelist_mode,
+      limited_federation_mode: Rails.configuration.x.limited_federation_mode,
       mascot: instance_presenter.mascot&.file&.url,
       profile_directory: Setting.profile_directory,
       trends_enabled: Setting.trends,
diff --git a/app/services/concerns/payloadable.rb b/app/services/concerns/payloadable.rb
index 04c3798fe0..1389a42ed6 100644
--- a/app/services/concerns/payloadable.rb
+++ b/app/services/concerns/payloadable.rb
@@ -23,6 +23,6 @@ module Payloadable
   end
 
   def signing_enabled?
-    ENV['AUTHORIZED_FETCH'] != 'true' && !Rails.configuration.x.whitelist_mode
+    ENV['AUTHORIZED_FETCH'] != 'true' && !Rails.configuration.x.limited_federation_mode
   end
 end
diff --git a/app/services/unallow_domain_service.rb b/app/services/unallow_domain_service.rb
index fc52607612..bdc71b1c08 100644
--- a/app/services/unallow_domain_service.rb
+++ b/app/services/unallow_domain_service.rb
@@ -4,7 +4,7 @@ class UnallowDomainService < BaseService
   include DomainControlHelper
 
   def call(domain_allow)
-    suspend_accounts!(domain_allow.domain) if whitelist_mode?
+    suspend_accounts!(domain_allow.domain) if limited_federation_mode?
 
     domain_allow.destroy
   end
diff --git a/app/views/admin/instances/index.html.haml b/app/views/admin/instances/index.html.haml
index 0bae70e31d..189dddcd29 100644
--- a/app/views/admin/instances/index.html.haml
+++ b/app/views/admin/instances/index.html.haml
@@ -5,7 +5,7 @@
   = javascript_pack_tag 'admin', async: true, crossorigin: 'anonymous'
 
 - content_for :heading_actions do
-  - if whitelist_mode?
+  - if limited_federation_mode?
     = link_to t('admin.domain_allows.add_new'), new_admin_domain_allow_path, class: 'button', id: 'add-instance-button'
     = link_to t('admin.domain_allows.export'), export_admin_export_domain_allows_path(format: :csv), class: 'button'
     = link_to t('admin.domain_allows.import'), new_admin_export_domain_allow_path, class: 'button'
@@ -20,7 +20,7 @@
     %ul
       %li= filter_link_to t('admin.instances.moderation.all'), limited: nil
 
-      - unless whitelist_mode?
+      - unless limited_federation_mode?
         %li= filter_link_to t('admin.instances.moderation.limited'), limited: '1'
 
   .filter-subset
@@ -30,7 +30,7 @@
       %li= filter_link_to t('admin.instances.delivery.failing'), availability: 'failing'
       %li= filter_link_to t('admin.instances.delivery.unavailable'), availability: 'unavailable'
 
-- unless whitelist_mode?
+- unless limited_federation_mode?
   = form_tag admin_instances_url, method: 'GET', class: 'simple_form' do
     .fields-group
       - InstanceFilter::KEYS.each do |key|
diff --git a/app/views/admin/instances/show.html.haml b/app/views/admin/instances/show.html.haml
index 6d67d389d2..3e4c41f737 100644
--- a/app/views/admin/instances/show.html.haml
+++ b/app/views/admin/instances/show.html.haml
@@ -36,7 +36,7 @@
 
 %h3= t('admin.instances.content_policies.title')
 
-- if whitelist_mode?
+- if limited_federation_mode?
   %p= t('admin.instances.content_policies.limited_federation_mode_description_html')
 
   - if @instance.domain_allow
diff --git a/config/initializers/2_limited_federation_mode.rb b/config/initializers/2_limited_federation_mode.rb
new file mode 100644
index 0000000000..d5f7652d58
--- /dev/null
+++ b/config/initializers/2_limited_federation_mode.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+Rails.application.configure do
+  config.x.limited_federation_mode = (ENV['LIMITED_FEDERATION_MODE'] || ENV['WHITELIST_MODE']) == 'true'
+
+  warn 'WARN: The environment variable WHITELIST_MODE has been replaced with LIMITED_FEDERATION_MODE, you should rename this environment variable in your configuration.' if ENV.key?('WHITELIST_MODE')
+end
diff --git a/config/initializers/2_whitelist_mode.rb b/config/initializers/2_whitelist_mode.rb
deleted file mode 100644
index 1cc6a8e724..0000000000
--- a/config/initializers/2_whitelist_mode.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-# frozen_string_literal: true
-
-Rails.application.configure do
-  config.x.whitelist_mode = (ENV['LIMITED_FEDERATION_MODE'] || ENV['WHITELIST_MODE']) == 'true'
-end
diff --git a/config/navigation.rb b/config/navigation.rb
index c4914cd995..4c1396cc86 100644
--- a/config/navigation.rb
+++ b/config/navigation.rb
@@ -40,7 +40,7 @@ SimpleNavigation::Configuration.run do |navigation|
       s.item :accounts, safe_join([fa_icon('users fw'), t('admin.accounts.title')]), admin_accounts_path(origin: 'local'), highlights_on: %r{/admin/accounts|/admin/pending_accounts|/admin/disputes|/admin/users}, if: -> { current_user.can?(:manage_users) }
       s.item :invites, safe_join([fa_icon('user-plus fw'), t('admin.invites.title')]), admin_invites_path, if: -> { current_user.can?(:manage_invites) }
       s.item :follow_recommendations, safe_join([fa_icon('user-plus fw'), t('admin.follow_recommendations.title')]), admin_follow_recommendations_path, highlights_on: %r{/admin/follow_recommendations}, if: -> { current_user.can?(:manage_taxonomies) }
-      s.item :instances, safe_join([fa_icon('cloud fw'), t('admin.instances.title')]), admin_instances_path(limited: whitelist_mode? ? nil : '1'), highlights_on: %r{/admin/instances|/admin/domain_blocks|/admin/domain_allows}, if: -> { current_user.can?(:manage_federation) }
+      s.item :instances, safe_join([fa_icon('cloud fw'), t('admin.instances.title')]), admin_instances_path(limited: limited_federation_mode? ? nil : '1'), highlights_on: %r{/admin/instances|/admin/domain_blocks|/admin/domain_allows}, if: -> { current_user.can?(:manage_federation) }
       s.item :email_domain_blocks, safe_join([fa_icon('envelope fw'), t('admin.email_domain_blocks.title')]), admin_email_domain_blocks_path, highlights_on: %r{/admin/email_domain_blocks}, if: -> { current_user.can?(:manage_blocks) }
       s.item :ip_blocks, safe_join([fa_icon('ban fw'), t('admin.ip_blocks.title')]), admin_ip_blocks_path, highlights_on: %r{/admin/ip_blocks}, if: -> { current_user.can?(:manage_blocks) }
       s.item :action_logs, safe_join([fa_icon('bars fw'), t('admin.action_logs.title')]), admin_action_logs_path, if: -> { current_user.can?(:view_audit_log) }
@@ -54,7 +54,7 @@ SimpleNavigation::Configuration.run do |navigation|
       s.item :announcements, safe_join([fa_icon('bullhorn fw'), t('admin.announcements.title')]), admin_announcements_path, highlights_on: %r{/admin/announcements}, if: -> { current_user.can?(:manage_announcements) }
       s.item :custom_emojis, safe_join([fa_icon('smile-o fw'), t('admin.custom_emojis.title')]), admin_custom_emojis_path, highlights_on: %r{/admin/custom_emojis}, if: -> { current_user.can?(:manage_custom_emojis) }
       s.item :webhooks, safe_join([fa_icon('inbox fw'), t('admin.webhooks.title')]), admin_webhooks_path, highlights_on: %r{/admin/webhooks}, if: -> { current_user.can?(:manage_webhooks) }
-      s.item :relays, safe_join([fa_icon('exchange fw'), t('admin.relays.title')]), admin_relays_path, highlights_on: %r{/admin/relays}, if: -> { !whitelist_mode? && current_user.can?(:manage_federation) }
+      s.item :relays, safe_join([fa_icon('exchange fw'), t('admin.relays.title')]), admin_relays_path, highlights_on: %r{/admin/relays}, if: -> { !limited_federation_mode? && current_user.can?(:manage_federation) }
     end
 
     n.item :sidekiq, safe_join([fa_icon('diamond fw'), 'Sidekiq']), sidekiq_path, link_html: { target: 'sidekiq' }, if: -> { current_user.can?(:view_devops) }
diff --git a/spec/requests/cache_spec.rb b/spec/requests/cache_spec.rb
index 902f21db4b..178d19ed0d 100644
--- a/spec/requests/cache_spec.rb
+++ b/spec/requests/cache_spec.rb
@@ -508,12 +508,12 @@ describe 'Caching behavior' do
   context 'when enabling LIMITED_FEDERATION_MODE mode' do
     around do |example|
       ClimateControl.modify LIMITED_FEDERATION_MODE: 'true' do
-        old_whitelist_mode = Rails.configuration.x.whitelist_mode
-        Rails.configuration.x.whitelist_mode = true
+        old_limited_federation_mode = Rails.configuration.x.limited_federation_mode
+        Rails.configuration.x.limited_federation_mode = true
 
         example.run
 
-        Rails.configuration.x.whitelist_mode = old_whitelist_mode
+        Rails.configuration.x.limited_federation_mode = old_limited_federation_mode
       end
     end
 
diff --git a/spec/services/unallow_domain_service_spec.rb b/spec/services/unallow_domain_service_spec.rb
index f27b6fdf39..19d40e7e86 100644
--- a/spec/services/unallow_domain_service_spec.rb
+++ b/spec/services/unallow_domain_service_spec.rb
@@ -14,7 +14,7 @@ RSpec.describe UnallowDomainService, type: :service do
 
   context 'with limited federation mode' do
     before do
-      allow(Rails.configuration.x).to receive(:whitelist_mode).and_return(true)
+      allow(Rails.configuration.x).to receive(:limited_federation_mode).and_return(true)
     end
 
     describe '#call' do
@@ -40,7 +40,7 @@ RSpec.describe UnallowDomainService, type: :service do
 
   context 'without limited federation mode' do
     before do
-      allow(Rails.configuration.x).to receive(:whitelist_mode).and_return(false)
+      allow(Rails.configuration.x).to receive(:limited_federation_mode).and_return(false)
     end
 
     describe '#call' do