Contents

module RequestLogAnalyzer::Filter
  
  # Filter to anonymize parsed values
  # Options
  # * <tt>:mode</tt> :reject or :accept.
  # * <tt>:field</tt> Specific field to accept or reject.
  # * <tt>:value</tt> Value that the field should match to be accepted or rejected.
  class Anonymize < Base
   
    def prepare
    end

    def generate_random_ip
      "#{rand(256)}.#{rand(256)}.#{rand(256)}.#{rand(256)}"
    end

    def anonymize_url(value)
      return value.sub(/^https?\:\/\/[A-Za-z0-9\.-]+\//, "http://example.com/")
    end
    
    def fuzz(value)
      value * ((75 + rand(50)) / 100.0)
    end

    def filter(request)    
      request.attributes.each do |key, value|
        if key == :ip
          request.attributes[key] = generate_random_ip
        elsif key == :url
          request.attributes[key] = anonymize_url(value)
        elsif [ :duration, :view, :db, :type, :after_filters_time, :before_filters_time,
                :action_time].include?(key)
          request.attributes[key] = fuzz(value)
        end
      end
      
      return request
    end 
  end
  
end

Version data entries

2 entries across 2 versions & 2 rubygems

Version	Path
wvanbergen-request-log-analyzer-1.1.2	lib/request_log_analyzer/filter/anonymize.rb
request-log-analyzer-1.1.2	lib/request_log_analyzer/filter/anonymize.rb