Ruby Net:HTTP chunked transfer

chunked_file_uploads_to_remote_in_sinatra.rb

require 'uri'
require 'net/http'

class Chunked
  def initialize(data, chunk_size)
    @size = chunk_size
    if data.respond_to? :read
      @file = data
    end
  end
  
  def read(foo)
    if @file
      @file.read(@size)
    end
  end
  def eof!
    @file.eof!
  end
  def eof?
    @file.eof?
  end
end



#in sinatra 

post '/image' do
 cross_origin
  name = params[:name]
  my_file = params[:my_file]
  unless params[:my_file] && (tmpfile = params[:my_file][:tempfile])
    @error = "No file selected"
    return haml(:upload)
  end
 
  parsed = URI::parse(@storage_url)
  conn = Net::HTTP.new(parsed.host, parsed.port)

  fp = File::open(tmpfile)
  parsed.path += '/foo/test.txt'
  
  chunked = Chunked.new(fp, 5)
  
  request = Net::HTTP::Put.new parsed.request_uri, {'x-auth-token' => @auth_token, 'Transfer-Encoding' => 'chunked', 'content-type' => 'text/plain'}
  request.body_stream = chunked
  conn.start do |http| 
    http.request(request)
  end
  
  fp.close
 "Upload complete\n"
end