# 178.47.189.163 - - [12/Dec/2015:18:53:11 +0100] "POST /administrator/index.php HTTP/1.1" 200 4494 "http://almhuette-raith.at/administrator/" "Mozilla/5.0 (Windows NT 6.0; rv:34.0) Gecko/20100101 Firefox/34.0" "-"
# http://www.almhuette-raith.at/apache-log/access.log

rx = /^
    (\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})\s+                     # ip-address
    .+?\s+
    .+?\s+
    \[(\d{1,2})\/(\w+)\/(\d+):(\d+):(\d+):(\d+)\s\+(\d+)\]\s+   # datetime
    \"(\w+) (.+?) ([\w\/\.]+)\"\s+                              # method resource protocol
    (\d+)\s+                                                    # status
    .+?\s+
    \"(.*?)\"\s+                                                # host
    \"(.*?)\"\s+                                                # user-agent
    \".+?\"
    $/x

requests_count = 0
error_4xx_count = 0
error_5xx_count = 0
resources = Hash.new
ips = Hash.new

File.open("access.log").each do |line|
  # p line.match(rx)
  requests_count += 1
  res = Hash.new
  res["ip"],
      res["day"],
      res["month"],
      res["year"],
      res["hour"],
      res["minute"],
      res["second"],
      res["zone"],
      res["method"],
      res["resource"],
      res["protocol"],
      res["status"],
      res["host"],
      res["user-agent"] = line.match(rx).captures

  if res["status"].start_with? "4"
    error_4xx_count += 1
  elsif res["status"].start_with? "5"
    error_5xx_count += 1
  end

  if resources[res["resource"]].nil?
    resources[res["resource"]] = 1
  else
    resources[res["resource"]] += 1
  end

  if ips[res["ip"]].nil?
    ips[res["ip"]] = 1
  else
    ips[res["ip"]] += 1
  end

end

puts "Проанализировано #{requests_count} записей"
puts "Количество 4хх-ошибок #{error_4xx_count} (#{error_4xx_count.to_f / requests_count * 100}%)"
puts "Количество 5хх-ошибок #{error_5xx_count} (#{error_5xx_count.to_f / requests_count * 100}%)"
puts resources
puts ips