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Contents
# Copyright (c) 2023 Contrast Security, Inc. See https://www.contrastsecurity.com/enduser-terms-0317a for more details.
# frozen_string_literal: true
require 'json'
require 'contrast/utils/hash_utils'
require 'contrast/components/logger'
module Contrast
module Utils
# Module to hold Agent's custom JSON.parse logic.
module Json
class << self
include Contrast::Components::Logger::InstanceMethods
# Add any known cases where parsing error might arise from older json parser:
# @return [Array<String>]
SPECIAL_CASES = ["\"\""].cs__freeze # rubocop:disable Style/StringLiterals
# Parses a string using JSON.parser. This method is used instead of standard JSON.parse to
# support older versions of json gem => not supporting key-value second parameter, which is
# supported after json 2.3.0.
#
# @param string [String]
# @param deep_symbolize [Boolean] flag to set if keys needs to be deep symbolized.
# @return [Hash]
def parse string, deep_symbolize: false
# The Agent receives empty responses from TS sometimes.
# There is a special case to handle this.
return {} if SPECIAL_CASES.include?(string)
symbolized_hash = {}
hash = JSON::Parser.new(string).parse
symbolized_hash = Contrast::Utils::HashUtils.deep_symbolize_all_keys(hash) if deep_symbolize
return hash unless deep_symbolize
symbolized_hash
rescue JSON::ParserError => e
# Any parsing error will produce empty {}. Since older JSON might pose support issues with newer Ruby,
# We might just log any miss-parsings and allow Agent to continue.
logger.warn("[JSON] parse error: #{ e }")
{}
end
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems