require 'erb' require 'rubygems' require 'rack' class Integer def as_bytes return "1 Byte" if self == 1 label = ["Bytes", "KiB", "MiB", "GiB", "TiB"] i = 0 num = self.to_f while num >= 1024 do num = num / 1024 i += 1 end "#{format('%.2f', num)} #{label[i]}" end end class OpenVPNStatusWeb def initialize(name, file) @name = name @file = file end def call(env) main_tmpl = read_template('main.html.erb') # variables for template name = @name client_list, routing_table, global_stats = read_status_log(@file) html = main_tmpl.result(binding) [200, {"Content-Type" => "text/html"}, html] end def read_template(file) text = File.open(file, 'rb') do |f| f.read end ERB.new(text) end def read_status_log(file) text = File.open(file, 'rb') do |f| f.read end current_section = :none client_list = [] routing_table = [] global_stats = [] text.lines.each do |line| (current_section = :cl; next) if line == "OpenVPN CLIENT LIST\n" (current_section = :rt; next) if line == "ROUTING TABLE\n" (current_section = :gs; next) if line == "GLOBAL STATS\n" (current_section = :end; next) if line == "END\n" case current_section when :cl then client_list << line.strip.split(',') when :rt then routing_table << line.strip.split(',') when :gs then global_stats << line.strip.split(',') end end [client_list[2..-1], routing_table[1..-1], global_stats] end end Rack::Handler::Mongrel.run OpenVPNStatusWeb.new('', ''), :Port => 9292