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# frozen_string_literal: true
class ActivityPub::DeliveryWorker
include Sidekiq::Worker
include RoutingHelper
include JsonLdHelper
STOPLIGHT_FAILURE_THRESHOLD = 10
STOPLIGHT_COOLDOWN = 60
sidekiq_options queue: 'push', retry: 16, dead: false
# Unfortunately, we cannot control Sidekiq's jitter, so add our own
sidekiq_retry_in do |count|
# This is Sidekiq's default delay
delay = (count**4) + 15
# Our custom jitter, that will be added to Sidekiq's built-in one.
# Sidekiq's built-in jitter is `rand(10) * (count + 1)`
jitter = rand(0.5 * (count**4))
delay + jitter
end
HEADERS = { 'Content-Type' => 'application/activity+json' }.freeze
def perform(json, source_account_id, inbox_url, options = {})
return unless DeliveryFailureTracker.available?(inbox_url)
@options = options.with_indifferent_access
@json = json
@source_account = Account.find(source_account_id)
@inbox_url = inbox_url
@host = Addressable::URI.parse(inbox_url).normalized_site
@performed = false
perform_request
ensure
if @inbox_url.present?
if @performed
failure_tracker.track_success!
else
failure_tracker.track_failure!
end
end
end
private
def build_request(http_client)
Request.new(:post, @inbox_url, body: @json, http_client: http_client).tap do |request|
request.on_behalf_of(@source_account, sign_with: @options[:sign_with])
request.add_headers(HEADERS)
request.add_headers({ 'Collection-Synchronization' => synchronization_header }) if ENV['DISABLE_FOLLOWERS_SYNCHRONIZATION'] != 'true' && @options[:synchronize_followers]
end
end
def synchronization_header
"collectionId=\"#{account_followers_url(@source_account)}\", digest=\"#{@source_account.remote_followers_hash(@inbox_url)}\", url=\"#{account_followers_synchronization_url(@source_account)}\""
end
def perform_request
light = Stoplight(@inbox_url) do
request_pool.with(@host) do |http_client|
build_request(http_client).perform do |response|
raise Mastodon::UnexpectedResponseError, response unless response_successful?(response) || response_error_unsalvageable?(response)
@performed = true
end
end
end
light.with_threshold(STOPLIGHT_FAILURE_THRESHOLD)
.with_cool_off_time(STOPLIGHT_COOLDOWN)
.run
end
def failure_tracker
@failure_tracker ||= DeliveryFailureTracker.new(@inbox_url)
end
def request_pool
RequestPool.current
end
end
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