Add reblogs and favourites counts to statuses in ActivityPub (#32007)

app/controllers/activitypub/likes_controller.rb

@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+class ActivityPub::LikesController < ActivityPub::BaseController
+  include Authorization
+
+  vary_by -> { 'Signature' if authorized_fetch_mode? }
+
+  before_action :require_account_signature!, if: :authorized_fetch_mode?
+  before_action :set_status
+
+  def index
+    expires_in 0, public: @status.distributable? && public_fetch_mode?
+    render json: likes_collection_presenter, serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json'
+  end
+
+  private
+
+  def pundit_user
+    signed_request_account
+  end
+
+  def set_status
+    @status = @account.statuses.find(params[:status_id])
+    authorize @status, :show?
+  rescue Mastodon::NotPermittedError
+    not_found
+  end
+
+  def likes_collection_presenter
+    ActivityPub::CollectionPresenter.new(
+      id: account_status_likes_url(@account, @status),
+      type: :unordered,
+      size: @status.favourites_count
+    )
+  end
+end

app/controllers/activitypub/replies_controller.rb

@@ -12,7 +12,7 @@ class ActivityPub::RepliesController < ActivityPub::BaseController
   before_action :set_replies
 
   def index
-    expires_in 0, public: public_fetch_mode?
+    expires_in 0, public: @status.distributable? && public_fetch_mode?
     render json: replies_collection_presenter, serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json', skip_activities: true
   end
 

app/controllers/activitypub/shares_controller.rb

@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+class ActivityPub::SharesController < ActivityPub::BaseController
+  include Authorization
+
+  vary_by -> { 'Signature' if authorized_fetch_mode? }
+
+  before_action :require_account_signature!, if: :authorized_fetch_mode?
+  before_action :set_status
+
+  def index
+    expires_in 0, public: @status.distributable? && public_fetch_mode?
+    render json: shares_collection_presenter, serializer: ActivityPub::CollectionSerializer, adapter: ActivityPub::Adapter, content_type: 'application/activity+json'
+  end
+
+  private
+
+  def pundit_user
+    signed_request_account
+  end
+
+  def set_status
+    @status = @account.statuses.find(params[:status_id])
+    authorize @status, :show?
+  rescue Mastodon::NotPermittedError
+    not_found
+  end
+
+  def shares_collection_presenter
+    ActivityPub::CollectionPresenter.new(
+      id: account_status_shares_url(@account, @status),
+      type: :unordered,
+      size: @status.reblogs_count
+    )
+  end
+end