mirror of https://github.com/tootsuite/mastodon
73 lines
2.2 KiB
Ruby
73 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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class Scheduler::SelfDestructScheduler
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include Sidekiq::Worker
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include SelfDestructHelper
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MAX_ENQUEUED = 10_000
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MAX_REDIS_MEM_USAGE = 0.5
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MAX_ACCOUNT_DELETIONS_PER_JOB = 50
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sidekiq_options retry: 0, lock: :until_executed, lock_ttl: 1.day.to_i
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def perform
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return unless self_destruct?
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return if sidekiq_overwhelmed?
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delete_accounts!
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end
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private
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def sidekiq_overwhelmed?
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redis_mem_info = Sidekiq.redis_info
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Sidekiq::Stats.new.enqueued > MAX_ENQUEUED || redis_mem_info['used_memory'].to_f > redis_mem_info['total_system_memory'].to_f * MAX_REDIS_MEM_USAGE
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end
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def delete_accounts!
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# We currently do not distinguish between deleted accounts and suspended
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# accounts, and we do not want to remove the records in this scheduler, as
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# we still rely on it for account delivery and don't want to perform
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# needless work when the database can be outright dropped after the
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# self-destruct.
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# Deleted accounts are suspended accounts that do not have a pending
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# deletion request.
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# This targets accounts that have not been deleted nor marked for deletion yet
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Account.local.without_suspended.reorder(id: :asc).take(MAX_ACCOUNT_DELETIONS_PER_JOB).each do |account|
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delete_account!(account)
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end
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return if sidekiq_overwhelmed?
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# This targets accounts that have been marked for deletion but have not been
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# deleted yet
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Account.local.suspended.joins(:deletion_request).take(MAX_ACCOUNT_DELETIONS_PER_JOB).each do |account|
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delete_account!(account)
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account.deletion_request&.destroy
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end
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end
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def inboxes
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@inboxes ||= Account.inboxes
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end
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def delete_account!(account)
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payload = ActiveModelSerializers::SerializableResource.new(
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account,
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serializer: ActivityPub::DeleteActorSerializer,
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adapter: ActivityPub::Adapter
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).as_json
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json = Oj.dump(ActivityPub::LinkedDataSignature.new(payload).sign!(account))
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ActivityPub::DeliveryWorker.push_bulk(inboxes, limit: 1_000) do |inbox_url|
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[json, account.id, inbox_url]
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end
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# Do not call `Account#suspend!` because we don't want to issue a deletion request
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account.update!(suspended_at: Time.now.utc, suspension_origin: :local)
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end
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end
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