# File lib/deltacloud/drivers/rackspace/rackspace_driver.rb, line 332
  def blob_stream_connection(params)
    #create a cloudfiles connection object to get the authtoken
    cf, cf_host, cf_path, cf_authtoken = nil
    safely do
      cf = CloudFiles::Connection.new(:username => params[:user],
                                :api_key => params[:password])
      cf_authtoken = cf.authtoken
      cf_host = cf.storagehost
      cf_path = cf.storagepath
    end
    provider = "https://#{cf_host}"
    uri = URI.parse(provider)
    http = Net::HTTP.new(uri.host, uri.port )
    http.use_ssl = true
    http.verify_mode = OpenSSL::SSL::VERIFY_NONE
    request = Net::HTTP::Put.new("#{cf_path}/#{params[:bucket]}/#{params[:blob]}")
    request['Host'] = "#{cf_host}"
    request['X-Auth-Token'] = "#{cf_authtoken}"
    request['Content-Type'] = params[:content_type]
    request['Content-Length'] = params[:content_length]
    request['Expect'] = "100-continue"
    metadata = params[:metadata] || {}
    BlobHelper::rename_metadata_headers(metadata, 'X-Object-Meta-')
    metadata.each{|k,v| request[k] = v}
    return http, request
  end