Ruby redirect

fetch.rb

require 'net/http'
require 'uri'

def fetch(uri_str, limit = 10)
  # You should choose a better exception.
  raise ArgumentError, 'too many HTTP redirects' if limit == 0

  response = Net::HTTP.get_response(URI(uri_str))

  case response
  when Net::HTTPSuccess then
    response
  when Net::HTTPRedirection then
    location = response['location']
    warn "redirected to #{location}"
    fetch(location, limit - 1)
  else
    response.value
  end
end

httpclient.rb

require 'httpclient'

client = HTTPClient.new
content = client.get_content("http://example.com")