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const CC = Components.Constructor;

const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
                             "nsIBinaryInputStream",
                             "setInputStream");
const BinaryOutputStream = CC("@mozilla.org/binaryoutputstream;1",
                              "nsIBinaryOutputStream",
                              "setOutputStream");
const Timer = CC("@mozilla.org/timer;1",
                 "nsITimer",
                 "initWithCallback");

function handleRequest(request, response) {
  var bodyStream = new BinaryInputStream(request.bodyInputStream);
  var bodyBytes = [];
  while ((bodyAvail = bodyStream.available()) > 0)
    Array.prototype.push.apply(bodyBytes, bodyStream.readByteArray(bodyAvail));

  var bos = new BinaryOutputStream(response.bodyOutputStream);

  response.processAsync();

  var part = bodyBytes.splice(0, 256);
  bos.writeByteArray(part, part.length);

  response.timer1 = new Timer(function(timer) {
    bos.writeByteArray(bodyBytes, bodyBytes.length);
  }, 1000, Components.interfaces.nsITimer.TYPE_ONE_SHOT);

  response.timer2 = new Timer(function(timer) {
    response.finish();
  }, 2000, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
}