Change about page to be mounted in the web UI (#19345)

app/controllers/about_controller.rb

@@ -1,63 +1,11 @@
 # frozen_string_literal: true
 
 class AboutController < ApplicationController
-  include RegistrationSpamConcern
+  include WebAppControllerConcern
 
-  layout 'public'
+  skip_before_action :require_functional!
 
-  before_action :require_open_federation!, only: [:more]
-  before_action :set_body_classes, only: :show
-  before_action :set_instance_presenter
-  before_action :set_expires_in, only: [:more]
-
-  skip_before_action :require_functional!, only: [:more]
-
-  def more
-    flash.now[:notice] = I18n.t('about.instance_actor_flash') if params[:instance_actor]
-
-    toc_generator = TOCGenerator.new(@instance_presenter.extended_description)
-
-    @rules             = Rule.ordered
-    @contents          = toc_generator.html
-    @table_of_contents = toc_generator.toc
-    @blocks            = DomainBlock.with_user_facing_limitations.by_severity if display_blocks?
-  end
-
-  helper_method :display_blocks?
-  helper_method :display_blocks_rationale?
-  helper_method :public_fetch_mode?
-  helper_method :new_user
-
-  private
-
-  def require_open_federation!
-    not_found if whitelist_mode?
-  end
-
-  def display_blocks?
-    Setting.show_domain_blocks == 'all' || (Setting.show_domain_blocks == 'users' && user_signed_in?)
-  end
-
-  def display_blocks_rationale?
-    Setting.show_domain_blocks_rationale == 'all' || (Setting.show_domain_blocks_rationale == 'users' && user_signed_in?)
-  end
-
-  def new_user
-    User.new.tap do |user|
-      user.build_account
-      user.build_invite_request
-    end
-  end
-
-  def set_instance_presenter
-    @instance_presenter = InstancePresenter.new
-  end
-
-  def set_body_classes
-    @hide_navbar = true
-  end
-
-  def set_expires_in
-    expires_in 0, public: true
+  def show
+    expires_in 0, public: true unless user_signed_in?
   end
 end

app/controllers/api/v1/instances/domain_blocks_controller.rb

@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+class Api::V1::Instances::DomainBlocksController < Api::BaseController
+  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
+
+  before_action :require_enabled_api!
+  before_action :set_domain_blocks
+
+  def index
+    expires_in 3.minutes, public: true
+    render json: @domain_blocks, each_serializer: REST::DomainBlockSerializer, with_comment: (Setting.show_domain_blocks_rationale == 'all' || (Setting.show_domain_blocks_rationale == 'users' && user_signed_in?))
+  end
+
+  private
+
+  def require_enabled_api!
+    head 404 unless Setting.show_domain_blocks == 'all' || (Setting.show_domain_blocks == 'users' && user_signed_in?)
+  end
+
+  def set_domain_blocks
+    @domain_blocks = DomainBlock.with_user_facing_limitations.by_severity
+  end
+end

app/controllers/api/v1/instances/extended_descriptions_controller.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+class Api::V1::Instances::ExtendedDescriptionsController < Api::BaseController
+  skip_before_action :require_authenticated_user!, unless: :whitelist_mode?
+
+  before_action :set_extended_description
+
+  def show
+    expires_in 3.minutes, public: true
+    render json: @extended_description, serializer: REST::ExtendedDescriptionSerializer
+  end
+
+  private
+
+  def set_extended_description
+    @extended_description = ExtendedDescription.current
+  end
+end