Soundcloud download test

require 'net/http'

def check_response(response, expected)
  raise "Unexpected response from server: #{response.code} #{response.message}" unless response.is_a?(expected)
end

def get_actual_download_url(download_url)
  puts "requesting #{download_url}"
  url = URI.parse(download_url)
  response = Net::HTTP.start(url.host, url.port) { |http| http.get(url.path) }
  check_response(response, Net::HTTPRedirection)
  response['location']
end

def get_response(actual_download_url)
  puts "requesting #{actual_download_url}"
  url = URI.parse(actual_download_url)
  response = Net::HTTP.start(url.host, url.port) { |http| http.head(url.path) }
  check_response(response, Net::HTTPSuccess)
  response
end

download_url = "http://soundcloud.com/omegadubstep/pink-floyd-brain-damage-omega-remix-v1-free-320-download/download"
actual_download_url = get_actual_download_url(download_url)
response = get_response(actual_download_url)