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0b36e3419d
* Add tests * Ensure deleted statuses are marked as such * Save some redis memory by not storing URIs in delete_upon_arrival values * Avoid possible race condition when processing incoming Deletes * Avoid potential duplicate Delete forwards * Lower lock durations to reduce issues in case of hard crash of the Rails process * Check for `lock.aquired?` and improve comment * Refactor RedisLock usage in app/lib/activitypub * Fix using incorrect or non-existent sender for relaying Deletes
86 lines
2.5 KiB
Ruby
86 lines
2.5 KiB
Ruby
# frozen_string_literal: true
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class ActivityPub::Activity::Delete < ActivityPub::Activity
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def perform
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if @account.uri == object_uri
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delete_person
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else
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delete_note
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end
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end
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private
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def delete_person
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lock_or_return("delete_in_progress:#{@account.id}") do
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DeleteAccountService.new.call(@account, reserve_username: false, skip_activitypub: true)
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end
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end
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def delete_note
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return if object_uri.nil?
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lock_or_return("delete_status_in_progress:#{object_uri}", 5.minutes.seconds) do
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unless invalid_origin?(object_uri)
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# This lock ensures a concurrent `ActivityPub::Activity::Create` either
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# does not create a status at all, or has finished saving it to the
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# database before we try to load it.
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# Without the lock, `delete_later!` could be called after `delete_arrived_first?`
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# and `Status.find` before `Status.create!`
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lock_or_fail("create:#{object_uri}") { delete_later!(object_uri) }
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Tombstone.find_or_create_by(uri: object_uri, account: @account)
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end
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@status = Status.find_by(uri: object_uri, account: @account)
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@status ||= Status.find_by(uri: @object['atomUri'], account: @account) if @object.is_a?(Hash) && @object['atomUri'].present?
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return if @status.nil?
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forward! if @json['signature'].present? && @status.distributable?
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delete_now!
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end
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end
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def rebloggers_ids
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return @rebloggers_ids if defined?(@rebloggers_ids)
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@rebloggers_ids = @status.reblogs.includes(:account).references(:account).merge(Account.local).pluck(:account_id)
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end
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def inboxes_for_reblogs
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Account.where(id: ::Follow.where(target_account_id: rebloggers_ids).select(:account_id)).inboxes
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end
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def replied_to_status
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return @replied_to_status if defined?(@replied_to_status)
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@replied_to_status = @status.thread
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end
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def reply_to_local?
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!replied_to_status.nil? && replied_to_status.account.local?
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end
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def inboxes_for_reply
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replied_to_status.account.followers.inboxes
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end
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def forward!
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inboxes = inboxes_for_reblogs
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inboxes += inboxes_for_reply if reply_to_local?
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inboxes -= [@account.preferred_inbox_url]
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sender_id = reply_to_local? ? replied_to_status.account_id : rebloggers_ids.first
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ActivityPub::LowPriorityDeliveryWorker.push_bulk(inboxes.uniq) do |inbox_url|
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[payload, sender_id, inbox_url]
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end
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end
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def delete_now!
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RemoveStatusService.new.call(@status, redraft: false)
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end
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def payload
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@payload ||= Oj.dump(@json)
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end
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end
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