Module: LogDataFilter

Defined in:
lib/macaw_framework/data_filters/log_data_filter.rb

Overview

Module responsible for sanitizing log data

Constant Summary collapse

DEFAULT_MAX_LENGTH = 
512
DEFAULT_SENSITIVE_FIELDS = 
[].freeze

Class Method Summary collapse

Class Method Details

.config ⇒ Object 



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# File 'lib/macaw_framework/data_filters/log_data_filter.rb', line 11

def self.config
  @config ||= begin
    file_path = 'application.json'
    config = {
      max_length: DEFAULT_MAX_LENGTH,
      sensitive_fields: DEFAULT_SENSITIVE_FIELDS
    }

    if File.exist?(file_path)
      json = JSON.parse(File.read(file_path))

      if json['macaw'] && json['macaw']['log']
        log_config = json['macaw']['log']
        config[:max_length] = log_config['max_length'] if log_config['max_length']
        config[:sensitive_fields] = log_config['sensitive_fields'] if log_config['sensitive_fields']
      end
    end

    config
  end
end

.sanitize_for_logging(data, sensitive_fields: ) ⇒ Object 



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# File 'lib/macaw_framework/data_filters/log_data_filter.rb', line 33

def self.sanitize_for_logging(data, sensitive_fields: config[:sensitive_fields])
  return '' if data.nil?

  data = data.to_s.force_encoding('UTF-8')
  data = data.slice(0, config[:max_length])
  data = data.gsub('\\', '')

  sensitive_fields.each do |field|
    next unless data.include?(field.to_s)

    data = data.gsub(/(#{Regexp.escape(field.to_s)}\s*[:=]\s*)([^\s]+)/) do |_match|
      "#{::Regexp.last_match(1)}#{Digest::SHA256.hexdigest(::Regexp.last_match(2))}"
    end
  end

  data
end