[Help] My simple downloader doesn't work

ruby-talk
1

Hello,

I'm learning Ruby for some time. Today I started to write simple code
which will download specified files from specified servers but it
doesn't work. It always showing me error 500 when code is going to
download file. This is code:

equire 'net/ftp'
require 'net/http'

class Get

  def initialize(resource)
    if resource=~/http:\/\/|ftp:\/\//
      @resource=resource
      @status=0
      @type = resource[0..1].to_s
    end
  end

  def get
    case (@type)
      when "ht"
        @sock = Net.HTTP.new(@resource)
        @sock.getbinaryfile("index.html",1024)
      when "ft"
        index = (@resource[6..-1].index("/")+5)
        last = (@resource.size - @resource.reverse.index("/")-1)
        ftp = Net::FTP.new(@resource[6..index])
        ftp.login
        ftp.chdir(@resource[(index+2)..last])
        ftp.get(@resource[(last+1)..-1] , @resource[(last+1)..-1])
        ftp.close
    end
  end

end

get = Get.new("ftp://sunsite.icm.edu.pl/pub/Linux/slackware/
slackware-12.0/CHECKSUMS.md5.asc")
get.get