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metu.life/app/services/activitypub/fetch_remote_status_service.rb

36 lines
1.1 KiB

# frozen_string_literal: true
class ActivityPub::FetchRemoteStatusService < BaseService
include JsonLdHelper
# Should be called when uri has already been checked for locality
def call(uri, prefetched_json = nil)
@json = body_to_json(prefetched_json) || fetch_resource(uri)
return unless supported_context? && expected_type?
attributed_to = first_of_value(@json['attributedTo'])
attributed_to = attributed_to['id'] if attributed_to.is_a?(Hash)
return unless trustworthy_attribution?(uri, attributed_to)
actor = ActivityPub::TagManager.instance.uri_to_resource(attributed_to, Account)
actor = ActivityPub::FetchRemoteAccountService.new.call(attributed_to) if actor.nil?
ActivityPub::Activity::Create.new({ 'object' => @json }, actor).perform
end
private
def trustworthy_attribution?(uri, attributed_to)
Addressable::URI.parse(uri).normalized_host.casecmp(Addressable::URI.parse(attributed_to).normalized_host).zero?
end
def supported_context?
super(@json)
end
def expected_type?
%w(Note Article).include? @json['type']
end
end