1 files changed, 36 insertions, 0 deletions
diff --git a/app/controllers/activitypub/followers_synchronizations_controller.rb b/app/controllers/activitypub/followers_synchronizations_controller.rb
new file mode 100644
index 000000000..525031105
--- /dev/null
+++ b/app/controllers/activitypub/followers_synchronizations_controller.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+class ActivityPub::FollowersSynchronizationsController < ActivityPub::BaseController
+  include SignatureVerification
+  include AccountOwnedConcern
+
+  before_action :require_signature!
+  before_action :set_items
+  before_action :set_cache_headers
+
+  def show
+    expires_in 0, public: false
+    render json: collection_presenter,
+           serializer: ActivityPub::CollectionSerializer,
+           adapter: ActivityPub::Adapter,
+           content_type: 'application/activity+json'
+  end
+
+  private
+
+  def uri_prefix
+    signed_request_account.uri[/http(s?):\/\/[^\/]+\//]
+  end
+
+  def set_items
+    @items = @account.followers.where(Account.arel_table[:uri].matches(uri_prefix + '%', false, true)).pluck(:uri)
+  end
+
+  def collection_presenter
+    ActivityPub::CollectionPresenter.new(
+      id: account_followers_synchronization_url(@account),
+      type: :ordered,
+      items: @items
+    )
+  end
+end