mastodon/app/services/activitypub/process_collection_service.rb
Eugen Rochko dad339da6d
Filter incoming Create activities by relation to local activity (#10005)
Reject those from accounts with no local followers, from relays
that are not enabled, which do not address local accounts and are
not replies to accounts that do have local followers
2019-02-13 18:42:47 +01:00

53 lines
1.3 KiB
Ruby

# frozen_string_literal: true
class ActivityPub::ProcessCollectionService < BaseService
include JsonLdHelper
def call(body, account, **options)
@account = account
@json = Oj.load(body, mode: :strict)
@options = options
return unless supported_context?
return if different_actor? && verify_account!.nil?
return if @account.suspended? || @account.local?
case @json['type']
when 'Collection', 'CollectionPage'
process_items @json['items']
when 'OrderedCollection', 'OrderedCollectionPage'
process_items @json['orderedItems']
else
process_items [@json]
end
rescue Oj::ParseError
nil
end
private
def different_actor?
@json['actor'].present? && value_or_id(@json['actor']) != @account.uri
end
def process_items(items)
items.reverse_each.map { |item| process_item(item) }.compact
end
def supported_context?
super(@json)
end
def process_item(item)
activity = ActivityPub::Activity.factory(item, @account, @options)
activity&.perform
end
def verify_account!
@options[:relayed_through_account] = @account
@account = ActivityPub::LinkedDataSignature.new(@json).verify_account!
rescue JSON::LD::JsonLdError => e
Rails.logger.debug "Could not verify LD-Signature for #{value_or_id(@json['actor'])}: #{e.message}"
nil
end
end