Parse GSuite DMARC Reports

google-dmarc-parser.rb

#!/usr/bin/env ruby

require 'nokogiri'
require 'optparse'
require 'resolv'

options = {}
OptionParser.new do |opts|
    opts.banner = "Usage: google-dmarc-parser.rb [options]"

    opts.on('-f', '--file NAME', 'File name') { |v| options[:filename] = v }
end.parse!

doc = Nokogiri::XML( File.open( options[:filename] ) )
doc.xpath('//source_ip').each do |node|
    begin
        puts Resolv.getname node.content
    rescue
        puts node.content
    end
end