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# frozen_string_literal: true
class ActivityPub::SyncAccountWorker
include Sidekiq::Worker
include ExponentialBackoff
sidekiq_options queue: 'pull', retry: 5
def perform(account_id, every_page = false, skip_cooldown = false)
@account = Account.find(account_id)
return if @account.local?
@from_migrated_account = @account.moved_to_account&.local?
return unless @from_migrated_account || @account.followers.local.exists?
RedisLock.acquire(lock_options) do |lock|
if lock.acquired?
fetch_collection_items(every_page, skip_cooldown)
elsif @from_migrated_account
# Cause a retry so server-to-server migrations can complete.
raise Mastodon::RaceConditionError
end
end
rescue ActiveRecord::RecordNotFound
nil
end
private
def lock_options
{ redis: Redis.current, key: "account_sync:#{@account.id}" }
end
# Limits for an account moving to this server.
def limits_migrated
{
page_limit: 2_000,
item_limit: 40_000,
look_ahead: true,
}
end
# Limits for an account someone locally follows.
def limits_followed
{
page_limit: 25,
item_limit: 500,
look_ahead: @account.last_synced_at.blank?,
}
end
def fetch_collection_items(every_page, skip_cooldown)
opts = @from_migrated_account && every_page ? limits_migrated : limits_followed
opts.merge!({ every_page: every_page, skip_cooldown: skip_cooldown })
ActivityPub::FetchCollectionItemsService.new.call(@account.outbox_url, @account, **opts)
@account.update(last_synced_at: Time.now.utc)
end
end
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