module AWS::Core::Http

def self.patch_net_http_100_continue!
  if RUBY_VERSION >= '2.0'
    Net::HTTP.send(:include, Expect100Continue20)
  elsif RUBY_VERSION >= '1.9.3'
    Net::HTTP.send(:include, Expect100Continue19)
  else
    msg = "Expect 100-continue not supported in Ruby < 1.9.3"
    raise NotImplementedError, msg
  end
  Net::HTTP.send(:alias_method, :old_transport_request, :transport_request)
  Net::HTTP.send(:alias_method, :transport_request, :new_transport_request)
end