biff.rb

#
# biff.rb
# Simple biff(Mail check and notify tool)
#
# This script is example of Ruby/GNTP library
# (http://snaka.github.com/ruby_gntp/)
# 
# Setup:
#   you need follown gems.
#     - ruby_gntp
#     - pit
#
# Run:
#   Please type following command in command prompt
#     > ruby biff.rb
#
# author:  snaka.gml@gmail.com
# license: public domain
#
require 'net/pop'
require 'nkf'
require 'yaml'

require 'rubygems'
require 'ruby_gntp'
require 'pit'

config = Pit.get("mail", :require => {
  "server" => "pop3 server",
  "port"   => "pop3 port",
  "user"   => "user account",
  "pass"   => "password"
})

serv = config["server"]
port = config["port"].to_i
user = config["user"]
pass = config["pass"]

growl = GNTP.new
growl.register({
  :app_name  => "Simple Biff",
  :app_icon  => Dir.pwd + '\Email.png',
  :notifies  => [{
    :name    => "Mail",
    :enabled => true,
  },{
    :name    => "Info",
    :enabled => true,
    :icon    => Dir.pwd + '\Info.png'
  },{
    :name    => "Error",
    :enabled => true,
    :icon    => Dir.pwd + '\Delete.png'
  }]
})

cache_file = Dir.pwd + "/cache.yaml"
recieved = {}
begin
  recieved = YAML.load_file(cache_file)
rescue
end

Net::POP3.start(serv, port, user, pass) do |pop|
  exit 0 if pop.mails.empty?

  mails = []
  pop.each_mail do |m|
    unless recieved.include?(m.unique_id)
      recieved[m.unique_id] = true
      mails << m
    end
  end

  exit 0 if mails.size == 0

  growl.notify({
    :name  => "Info",
    :title => "Mail recieved",
    :text  => "#{pop.mails.size} mail(s) in mailbox.",
  })
  sleep 5

  mails.each do |m|
    subject = NKF.nkf('-Jw', m.header.match(/^Subject:\s+(.*)/)[1])
    from    = NKF.nkf('-Jw', m.header.match(/^From:\s+(.*)/)[1])
    growl.notify({
      :name => "Mail",
      :title => "#{from}",
      :text => "#{subject}"
    })
    sleep 1
  end
end

YAML.dump(recieved, File.open(cache_file, "w"))