Find for people in the local area network

find-pepole.rb

require "pp"

def arp
  result = `arp -a`
  lines = result.split("\n")

  address_table = Array.new
  lines.each do |line|
    ip = line[/\((.*?)\)/,1]
    mac = line[/at\ (.*?)\ on/,1]
    next if mac == "(incomplete)"
    next unless ip.index(/^192/)

    address_table.push([ip, mac])
  end
  return address_table.uniq
end

def search_device(local_devices)
  find_devices = Array.new
  local_devices.each do |local_device|
    $devices.each do |d|
      find_devices.push(local_device.push(d[2])) if d[0] == local_device[1]
    end
  end
  return find_devices.uniq
end

def find(user_name)
  # Create device list
  device_name = ""
  $peoples.each do |people|
    if people[0] == user_name
      device_name = people[1]
    end
  end

  # Find device
  find = false
  device_name.each do |d|
    $find_devices.each do |fd|
      if fd[2] == d
        find = true
      end
    end
  end

  print(user_name + "\t" + find.to_s + "\n")
  return  find
end


$devices = [["xx:xx:xx:xx:xx:xx", "iPhone", "Tom'siPhone"],
          ["xx:xx:xx:xx:xx:xx", "iPhone", "Alice'siPhone"],
          ["xx:xx:xx:xx:xx:xx", "iPad", "Tom'siPad"],
          ["xx:xx:xx:xx:xx:xx", "iPad", "Tom'siPad"],
          ["xx:xx:xx:xx:xx:xx", "Mac", "Tom'sMac"],
          ["xx:xx:xx:xx:xx:xx", "Mac", "Tom'sMac"]]

$peoples = [["tom", ["Tom'siPhone"]],
          ["alice", ["Alice'siPhone"]]]


pp local_devices = arp

pp $find_devices = search_device(local_devices)

find("tom")
find("alice")