upload analogue with XSendFile?

Question

Is there some way to use something similar to x-sendfile for uploading files, e.g. saving particular stream/parameter from request to file, without putting it wholly into memory? (In particular, with apache2 and ruby fcgi)

Answer 1

require 'open-uri'

CHUNK_SIZE = 8192

File.open("local_filename.dat","w") do |w|
  open("http://some_file.url") do |r|
    w.write(r.read(CHUNK_SIZE)) while !r.eof?
  end
end

Answer 2

Apache's ModPorter seems to be the way.