require 'rubygems'
require 'actionmailer'

require "openssl"
require "net/smtp"

# stolen from https://openrain.com/opensource/public/rails/plugins/action_mailer_tls
# by Marc Chung (marc [dot] chung [at] openrain [dot] com) and others
Net::SMTP.class_eval do
  private
  def do_start(helodomain, user, secret, authtype)
    raise IOError, 'SMTP session already started' if @started
    check_auth_args user, secret, authtype if user or secret

    sock = timeout(@open_timeout) { TCPSocket.open(@address, @port) }
    @socket = Net::InternetMessageIO.new(sock)
    @socket.read_timeout = 60 #@read_timeout

    check_response(critical { recv_response() })
    do_helo(helodomain)

    if starttls
      raise 'openssl library not installed' unless defined?(OpenSSL)
      ssl = OpenSSL::SSL::SSLSocket.new(sock)
      ssl.sync_close = true
      ssl.connect
      @socket = Net::InternetMessageIO.new(ssl)
      @socket.read_timeout = 60 #@read_timeout
      do_helo(helodomain)
    end

    authenticate user, secret, authtype if user
    @started = true
  ensure
    unless @started
      # authentication failed, cancel connection.
      @socket.close if not @started and @socket and not @socket.closed?
      @socket = nil
    end
  end

  def do_helo(helodomain)
    begin
      if @esmtp
        ehlo helodomain
      else
        helo helodomain
      end
    rescue Net::ProtocolError
      if @esmtp
        @esmtp = false
        @error_occured = false
        retry
      end
      raise
    end
  end

  def starttls
    getok('STARTTLS') rescue return false
    return true
  end

  def quit
    begin
      getok('QUIT')
    rescue EOFError
    end
  end
end

ActionMailer::Base.smtp_settings = {
  :address => "smtp.gmail.com",
  :port => 587,
  :user_name => "someone",
  :password => "PASSWORD",
  :authentication => :login
}

class Notifier < ActionMailer::Base
  def deploy_notification(recipient)
    recipients recipient
    # you can only use addresses you registered in GMail here:
    from       'someone@gmail.com'
    subject    "Deployment happened!"

    body <<-MSG
      Hello. This is to inform you
      that a deployment has happened.
    MSG
  end
end

Notifier.deliver_deploy_notification('someone@example.com')