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Skip processing Update activities on unknown accounts (#15514)

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This also skips fetching the actor completely.

This will be useful if we end up distributing Update activities linked to
account suspensions more widely (they are currently only delivered to
the suspended account's followers), as currently, instances not knowing
about the suspended account would fetch it to then process the suspension.

Co-authored-by: Claire <claire.github-309c@sitedethib.com>
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ThibG 2021-01-08 12:26:29 +01:00 committed by GitHub
parent 1817f96578
commit a1a8aa4a08
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1 changed files with 5 additions and 5 deletions
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10
app/controllers/activitypub/inboxes_controller.rb
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@ -5,7 +5,7 @@ class ActivityPub::InboxesController < ActivityPub::BaseController
include JsonLdHelper include JsonLdHelper
include AccountOwnedConcern include AccountOwnedConcern
before_action :skip_unknown_actor_delete before_action :skip_unknown_actor_activity
before_action :require_signature! before_action :require_signature!
skip_before_action :authenticate_user! skip_before_action :authenticate_user!
@ -18,13 +18,13 @@ class ActivityPub::InboxesController < ActivityPub::BaseController
private private
def skip_unknown_actor_delete def skip_unknown_actor_activity
head 202 if unknown_deleted_account? head 202 if unknown_affected_account?
end end
def unknown_deleted_account? def unknown_affected_account?
json = Oj.load(body, mode: :strict) json = Oj.load(body, mode: :strict)
json.is_a?(Hash) && json['type'] == 'Delete' && json['actor'].present? && json['actor'] == value_or_id(json['object']) && !Account.where(uri: json['actor']).exists? json.is_a?(Hash) && %w(Delete Update).include?(json['type']) && json['actor'].present? && json['actor'] == value_or_id(json['object']) && !Account.where(uri: json['actor']).exists?
rescue Oj::ParseError rescue Oj::ParseError
false false
end end