mastodon/app/workers/pubsubhubbub/distribution_worker.rb

# frozen_string_literal: true

class Pubsubhubbub::DistributionWorker
  include Sidekiq::Worker

  sidekiq_options queue: 'push'

  def perform(stream_entry_id)
    stream_entry = StreamEntry.find(stream_entry_id)

    return if stream_entry.status&.direct_visibility?

    @account = stream_entry.account
    @payload = AtomSerializer.render(AtomSerializer.new.feed(@account, [stream_entry]))
    @domains = @account.followers_domains

    Subscription.where(account: @account).active.select('id, callback_url').find_each do |subscription|
      next if stream_entry.hidden? && !allowed_to_receive?(subscription.callback_url)
      Pubsubhubbub::DeliveryWorker.perform_async(subscription.id, @payload)
    end
  rescue ActiveRecord::RecordNotFound
    true
  end

  private

  def allowed_to_receive?(callback_url)
    @domains.include?(Addressable::URI.parse(callback_url).host)
  end
end