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# frozen_string_literal: true
class ActivityPub::ProcessCollectionService < BaseService
include JsonLdHelper
def call(body, account)
@account = account
@json = Oj.load(body, mode: :strict)
return if @account.suspended? || !supported_context?
verify_account! if different_actor?
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 && @json['signature'].present?
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)
activity&.perform
end
def verify_account!
account = ActivityPub::LinkedDataSignature.new(@json).verify_account!
@account = account unless account.nil?
end
end