class MiniPortile

def download_file_ftp(uri, full_path)
  require "net/ftp"
  filename = File.basename(uri.path)
  with_tempfile(filename, full_path) do |temp_file|
    total = 0
    params = {
      :content_length_proc => lambda{|length| total = length },
      :progress_proc => lambda{|bytes|
        new_progress = (bytes * 100) / total
        message "\rDownloading %s (%3d%%) " % [filename, new_progress]
      },
      :open_timeout => @open_timeout,
      :read_timeout => @read_timeout,
    }
    if ENV["ftp_proxy"]
      _, userinfo, _p_host, _p_port = URI.split(ENV['ftp_proxy'])
      if userinfo
        proxy_user, proxy_pass = userinfo.split(/:/).map{|s| CGI.unescape(s) }
        params[:proxy_http_basic_authentication] =
          [ENV['ftp_proxy'], proxy_user, proxy_pass]
      end
    end
    OpenURI.open_uri(uri, 'rb', params) do |io|
      temp_file << io.read
    end
    output
  end
rescue LoadError
  raise LoadError, "Ruby #{RUBY_VERSION} does not provide the net-ftp gem, please add it as a dependency if you need to use FTP"
rescue Net::FTPError
  return false
end