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# Copyright (c) 2020 Contrast Security, Inc. See https://www.contrastsecurity.com/enduser-terms-0317a for more details.
# frozen_string_literal: true
cs__scoped_require 'contrast/utils/prevent_serialization'
cs__scoped_require 'contrast/agent/assess/properties'
module Contrast
module Agent
module Assess
# This is just a wrapper around Properties so that if they are on a frozen
# object, they are left mutable for us.
class Insulator
# Return a new delegator with a properties method, used to track
# properties in a manner that won't be serialized.
#
# @return [SimpleDelegator<Object>]
def self.generate
delegator = SimpleDelegator.new(nil)
delegator.extend(Contrast::Utils::PreventPsychSerialization)
delegator
end
# Return the frozen properties delegator, which is a
#
# @return [SimpleDelegator<Object>]
def self.generate_frozen
@_generate_frozen ||= begin
delegator = SimpleDelegator.new(nil)
delegator.extend(Contrast::Utils::PreventPsychSerialization)
delegator
end
end
end
end
end
end
# Our patch of the SimpleDelegator class, allowing us to leverage its
# marshal_dump and marshal_load methods to hide our properties on an object so
# that they will not be dumped or loaded.
# We do this to prevent polluting data that may run on applications that are no
# longer instrumented with Contrast
class SimpleDelegator
# rubocop:disable Naming/MemoizedInstanceVariableName
def properties
@delegate_properties ||= Contrast::Agent::Assess::Properties.new
end
# rubocop:enable Naming/MemoizedInstanceVariableName
end
Version data entries
7 entries across 7 versions & 1 rubygems