mastodon/app/lib/activitypub/activity/add.rb

# frozen_string_literal: true

class ActivityPub::Activity::Add < ActivityPub::Activity
  def perform
    return unless @json['target'].present? && value_or_id(@json['target']) == @account.featured_collection_url

    status   = status_from_uri(object_uri)
    status ||= fetch_remote_original_status

    return unless !status.nil? && status.account_id == @account.id && !@account.pinned?(status) && status.distributable?

    StatusPin.create!(account: @account, status: status)
  end
end