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Fix unbounded recursion in post discovery (#23506)

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* Add a limit to how many posts can get fetched as a result of a single request

* Add tests

* Always pass `request_id` when processing `Announce` activities

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Co-authored-by: nametoolong <nametoolong@users.noreply.github.com>
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Claire 2023-02-10 22:16:37 +01:00 • committed by GitHub
commit 0c9eac80d8
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12 changed files with 126 additions and 22 deletions
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6
app/lib/activitypub/activity/create.rb
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@ -327,18 +327,18 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
def resolve_thread(status)
return unless status.reply? && status.thread.nil? && Request.valid_url?(in_reply_to_uri)
ThreadResolveWorker.perform_async(status.id, in_reply_to_uri)
ThreadResolveWorker.perform_async(status.id, in_reply_to_uri, { 'request_id' => @options[:request_id]})
end
def fetch_replies(status)
collection = @object['replies']
return if collection.nil?
replies = ActivityPub::FetchRepliesService.new.call(status, collection, false)
replies = ActivityPub::FetchRepliesService.new.call(status, collection, allow_synchronous_requests: false, request_id: @options[:request_id])
return unless replies.nil?
uri = value_or_id(collection)
ActivityPub::FetchRepliesWorker.perform_async(status.id, uri) unless uri.nil?
ActivityPub::FetchRepliesWorker.perform_async(status.id, uri, { 'request_id' => @options[:request_id]}) unless uri.nil?
end
def conversation_from_uri(uri)