gistfile1.rb

#encoding: utf-8
require 'curb'

conn = Curl::Easy.new("http://wordpress.org/wordpress-3.9.zip")

conn.ssl_verify_host = false
conn.follow_location = true
conn.enable_cookies = true

file_path = File.join(Dir.pwd, 'wordpress-3.9.zip').to_s

conn.on_body { |data|
  puts "Received: #{data.length} bytes"
  File.open(file_path, "a") { |fh| fh.write data }
}

conn.perform