The Tor Browser / file revision

 /* Any copyright is dedicated to the Public Domain.

  * http://creativecommons.org/publicdomain/zero/1.0/ */

 // Delay before responding to an HTTP call attempting to read

 // an addon update RDF file

 function handleRequest(req, resp) {

   resp.processAsync();

   resp.setHeader("Cache-Control", "no-cache, no-store", false);

   resp.setHeader("Content-Type", "text/xml;charset=utf-8", false);

   let file = null;

   getObjectState("SERVER_ROOT", function(serverRoot)

   {

     file = serverRoot.getFile("browser/toolkit/mozapps/extensions/test/browser/browser_bug557956.rdf");

   });

   dump("*** cancelCompatCheck.sjs: " + file.path + "\n");

   let fstream = Components.classes["@mozilla.org/network/file-input-stream;1"].

                   createInstance(Components.interfaces.nsIFileInputStream);

   fstream.init(file, -1, 0, 0);

   let cstream = null;

   cstream = Components.classes["@mozilla.org/intl/converter-input-stream;1"].

           createInstance(Components.interfaces.nsIConverterInputStream);

   cstream.init(fstream, "UTF-8", 0, 0);

   // The delay can be passed on the query string

   let delay = req.queryString + 0;

   timer = Components.classes["@mozilla.org/timer;1"].

           createInstance(Components.interfaces.nsITimer);

   timer.init(function sendFile() {

     dump("cancelCompatCheck: starting to send file\n");

     let (str = {}) {

       let read = 0;

       do {

         // read as much as we can and put it in str.value

         read = cstream.readString(0xffffffff, str);

         resp.write(str.value);

       } while (read != 0);

     }

     cstream.close();

     resp.finish();

   }, delay, Components.interfaces.nsITimer.TYPE_ONE_SHOT);

 }