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# Copyright (c) 2023 Contrast Security, Inc. See https://www.contrastsecurity.com/enduser-terms-0317a for more details.
# frozen_string_literal: true
require 'contrast/components/logger'
module Contrast
module Extension
module Assess
# This Module allows us to track calls to the BasicObject#eval method,
# which violates the design of most methods we track in that we have to
# apply the trigger in a custom patch over one of the generic triggers in
# TriggerMethod.
class EvalTrigger
include Contrast::Components::Logger::InstanceMethods
class << self
def instance_eval_trigger_check obj, source, ret
apply_trigger(obj, source, ret, 'BasicObject', :instance_eval)
end
def eval_trigger_check obj, source, ret, method
apply_trigger(obj, source, ret, 'Module', method)
end
def apply_trigger obj, source, ret, clazz, method
return unless ::Contrast::ASSESS.non_request_tracking? || Contrast::Agent::REQUEST_TRACKER.current
# source might not be all the args passed in, but it is the one we care
# about. we could pass in all the args in the last param here if it
# becomes an issue in rendering on TS
Contrast::Agent::Assess::Policy::TriggerMethod.apply_eval_trigger(trigger_node(clazz, method), source, obj,
ret, source)
end
private
def trigger_node clazz, method
triggers = Contrast::Agent::Assess::Policy::Policy.instance.triggers
return unless triggers
triggers.find { |node| node.class_name == clazz && node.method_name == method }
end
end
end
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems