Ruby / Rails transfer files from SFTP to FTP folder

transfer.rb

# ftp_uri is calculated from environment variable and database encrypted account/password 
class Transfer
  def transfer
    require 'net/sftp'
    require 'net/ftp'

    current_business = Business.find(business_id)
    old_directory = "/orders/"
    directory = "orders"
    sftpuri = current_business.sftp_uri
    uri = current_business.ftp_uri
    Rails.logger.debug("SFTP_URI: #{sftpuri}")
    Rails.logger.debug("URI: #{uri}")

    ftp = Net::FTP.open(uri.host, uri.user, uri.password)
    ftp.mkdir(directory) if !ftp.nlst.include?(directory)
    puts 'making potential directory'
    ftp.chdir(directory)
    Net::SFTP.start(sftpuri.host, sftpuri.user, {:password => sftpuri.password, verbose: :debug}) do |sftp|
      sftp.dir.entries(old_directory).each do |file|

        backup = Tempfile.new([file.name.split(".").first, '.csv'])
        begin
          puts "Downloading #{file.name}"
          sftp.download!("/#{old_directory}/#{file.name}", backup)
          # backup.rewind
          puts "Uploading #{file.name}"
          ftp.putbinaryfile(backup.path, file.name)
        ensure
          backup.close! # Closes the file handle. If the file wasn't unlinked
          # because #unlink failed, then this method will attempt
          # to do so again.
        end

      end
    end
    puts ftp.nlst
    ftp.close
  end
end