privacy - add option to disable public activitypub outbox

app/controllers/activitypub/outboxes_controller.rb

@@ -55,8 +55,11 @@ class ActivityPub::OutboxesController < Api::BaseController
 
   def set_statuses
     return unless page_requested?
-
-    @statuses = @account.statuses.permitted_for(@account, signed_request_account)
+    if @account&.user && @account.user.hides_public_outbox?
+      @statuses = Status.none
+    else
+      @statuses = @account.statuses.permitted_for(@account, signed_request_account)
+    end
     @statuses = params[:min_id].present? ? @statuses.paginate_by_min_id(LIMIT, params[:min_id]).reverse : @statuses.paginate_by_max_id(LIMIT, params[:max_id])
     @statuses = cache_collection(@statuses, Status)
   end

app/controllers/settings/preferences_controller.rb

@@ -50,6 +50,7 @@ class Settings::PreferencesController < Settings::BaseController
       :setting_user_is_kobold,
       :setting_hide_mascot,
       :setting_hide_interactions,
+      :setting_hide_public_outbox,
       :setting_max_public_history,
 
       :setting_default_privacy,

app/lib/user_settings_decorator.rb

@@ -33,6 +33,7 @@ class UserSettingsDecorator
     user.settings['hide_captions']       = hide_captions_preference if change?('setting_hide_captions')
     user.settings['hide_mascot']         = hide_mascot_preference if change?('setting_hide_mascot')
     user.settings['hide_interactions']   = hide_interactions_preference if change?('setting_hide_interactions')
+    user.settings['hide_public_outbox']  = hide_public_outbox_preference if change?('setting_hide_public_outbox')
     user.settings['larger_emoji']        = larger_emoji_preference if change?('setting_larger_emoji')
     user.settings['max_public_history']  = max_public_history_preference if change?('setting_max_public_history')
 
@@ -116,6 +117,10 @@ class UserSettingsDecorator
     boolean_cast_setting 'setting_hide_interactions'
   end
 
+  def hide_public_outbox_preference
+    boolean_cast_setting 'setting_hide_public_outbox'
+  end
+
   def max_public_history_preference
     settings['setting_max_public_history']
   end

app/models/account.rb

@@ -134,6 +134,7 @@ class Account < ApplicationRecord
            :always_local_only?,
            :max_public_history,
 
+           :hides_public_outbox?,
            :hides_interactions?,
            :hides_network?,
            :hides_stats?,

app/models/user.rb

@@ -122,6 +122,7 @@ class User < ApplicationRecord
     :hide_mntions_packm8,
     :hide_mascot,
     :hide_interactions,
+    :hide_public_outbox,
     :max_public_history,
 
     :auto_play_gif,
@@ -285,6 +286,10 @@ class User < ApplicationRecord
     @hides_interactions ||= (settings.hide_interactions || false)
   end
 
+  def hides_public_outbox?
+    @hides_public_outbox ||= (settings.hide_public_outbox || false)
+  end
+
   def max_public_history
     @_max_public_history ||= (settings.max_public_history || 6)
   end

app/views/settings/preferences/show.html.haml

@@ -45,6 +45,7 @@
 
   .fields-group
     = f.input :setting_max_public_history, collection: [1, 3, 6, 7, 14, 30, 60, 90, 180, 365, 730, 1095, 2190], wrapper: :with_label, include_blank: false, label_method: lambda { |item| safe_join([t("simple_form.labels.defaults.setting_max_public_history_#{item}")]) }, selected: current_user.max_public_history.to_i
+    = f.input :setting_hide_public_outbox, as: :boolean, wrapper: :with_label
 
   - unless Setting.hide_followers_count
     .fields-group

config/locales/simple_form.en.yml

@@ -153,6 +153,7 @@ en:
         setting_favourite_modal: Show confirmation dialog before admiring (in Glitch flavour)
         setting_hide_followers_count: Hide your packmates count
         setting_hide_network: Make your packmate lists private
+        setting_hide_public_outbox: Hide your public ActivityPub outbox (affects discoverability)
         setting_max_public_history: Limit history of roars on public profile to
         setting_max_public_history_1: 1 day
         setting_max_public_history_3: 3 days