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Reduce chances of race conditions when processing deleted toots (#9815)

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* Reduce chances of race conditions when processing deleted toots

* Prevent race condition when processing deleted toots
This commit is contained in:
ThibG 2019-01-16 15:42:00 +01:00 • committed by Eugen Rochko
commit a4f07bad95
2 changed files with 11 additions and 3 deletions
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10
app/lib/activitypub/activity/delete.rb
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@ -21,11 +21,13 @@ class ActivityPub::Activity::Delete < ActivityPub::Activity
def delete_note
return if object_uri.nil?
RedisLock.acquire(lock_options) do |_lock|
delete_later!(object_uri)
end
@status = Status.find_by(uri: object_uri, account: @account)
@status ||= Status.find_by(uri: @object['atomUri'], account: @account) if @object.is_a?(Hash) && @object['atomUri'].present?
delete_later!(object_uri)
return if @status.nil?
if @status.public_visibility? || @status.unlisted_visibility?
@ -68,4 +70,8 @@ class ActivityPub::Activity::Delete < ActivityPub::Activity
def payload
@payload ||= Oj.dump(@json)
end
def lock_options
{ redis: Redis.current, key: "create:#{object_uri}" }
end
end