The Tor Browser / file revision

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 /**

  * Test download resume to do real-resume instead of stalling-the-channel

  * resume. Also test bug 395537 for resuming files that are deleted before

  * they're resumed. Bug 398216 is checked by making sure the reported progress

  * and file size are updated for finished downloads.

  */

 const nsIF = Ci.nsIFile;

 const nsIDM = Ci.nsIDownloadManager;

 const nsIWBP = Ci.nsIWebBrowserPersist;

 const nsIWPL = Ci.nsIWebProgressListener;

 const dm = Cc["@mozilla.org/download-manager;1"].getService(nsIDM);

 function run_test()

 {

   if (oldDownloadManagerDisabled()) {

     return;

   }

   /**

    * 1. Create data for http server to send

    */

   // data starts at 10 bytes

   var data = "1234567890";

   // data * 10^4 = 100,000 bytes (actually 101,111 bytes with newline)

   for (var i = 0; i < 4; i++) {

     data = [data,data,data,data,data,data,data,data,data,data,"\n"].join("");

   }

   /**

    * 2. Start the http server that can handle resume

    */

   var httpserv = new HttpServer();

   var didResumeServer = false;

   httpserv.registerPathHandler("/resume", function(meta, resp) {

     var body = data;

     resp.setHeader("Content-Type", "text/html", false);

     if (meta.hasHeader("Range")) {

       // track that we resumed for testing

       didResumeServer = true;

       // Syntax: bytes=[from]-[to] (we don't support multiple ranges)

       var matches = meta.getHeader("Range").match(/^\s*bytes=(\d+)?-(\d+)?\s*$/);

       var from = (matches[1] === undefined) ? 0 : matches[1];

       var to = (matches[2] === undefined) ? data.length - 1 : matches[2];

       if (from >= data.length) {

         resp.setStatusLine(meta.httpVersion, 416, "Start pos too high");

         resp.setHeader("Content-Range", "*/" + data.length, false);

         return;

       }

       body = body.substring(from, to + 1);

       // always respond to successful range requests with 206

       resp.setStatusLine(meta.httpVersion, 206, "Partial Content");

       resp.setHeader("Content-Range", from + "-" + to + "/" + data.length, false);

     }

     resp.bodyOutputStream.write(body, body.length);

   });

   httpserv.start(-1);

   /**

    * 3. Perform various actions for certain download states

    */

   var didPause = false;

   var didResumeDownload = false;

   dm.addListener({

     onDownloadStateChange: function(a, aDl) {

       if (aDl.state == nsIDM.DOWNLOAD_DOWNLOADING && !didPause) {

         /**

          * (1) queued -> downloading = pause the download

          */

         dm.pauseDownload(aDl.id);

       } else if (aDl.state == nsIDM.DOWNLOAD_PAUSED) {

         /**

          * (2) downloading -> paused = remove the file

          */

         didPause = true;

         // Test bug 395537 by removing the file before we actually resume

         aDl.targetFile.remove(false);

       } else if (aDl.state == nsIDM.DOWNLOAD_FINISHED) {

         /**

          * (4) downloading (resumed) -> finished = check tests

          */

         // did we pause at all?

         do_check_true(didPause);

         // did we real-resume and not fake-resume?

         do_check_true(didResumeDownload);

         // extra real-resume check for the server

         do_check_true(didResumeServer);

         // did we download the whole file?

         do_check_eq(data.length, aDl.targetFile.fileSize);

         // extra sanity checks on size (test bug 398216)

         do_check_eq(data.length, aDl.amountTransferred);

         do_check_eq(data.length, aDl.size);

         httpserv.stop(do_test_finished);

       }

     },

     onStateChange: function(a, b, aState, d, aDl) {

       if ((aState & nsIWPL.STATE_STOP) && didPause && !didResumeServer &&

           !didResumeDownload) {

         /**

          * (3) paused -> stopped = resume the download

          */

         dm.resumeDownload(aDl.id);

         didResumeDownload = true;

       }

     },

     onProgressChange: function(a, b, c, d, e, f, g) { },

     onSecurityChange: function(a, b, c, d) { }

   });

   dm.addListener(getDownloadListener());

   /**

    * 4. Start the download

    */

   var destFile = dirSvc.get("ProfD", nsIF);

   destFile.append("resumed");

   if (destFile.exists())

     destFile.remove(false);

   var persist = Cc["@mozilla.org/embedding/browser/nsWebBrowserPersist;1"].

                 createInstance(nsIWBP);

   persist.persistFlags = nsIWBP.PERSIST_FLAGS_REPLACE_EXISTING_FILES |

                          nsIWBP.PERSIST_FLAGS_BYPASS_CACHE |

                          nsIWBP.PERSIST_FLAGS_AUTODETECT_APPLY_CONVERSION;

   var dl = dm.addDownload(nsIDM.DOWNLOAD_TYPE_DOWNLOAD,

                           createURI("http://localhost:" +

                                     httpserv.identity.primaryPort + "/resume"),

                           createURI(destFile), null, null,

                           Math.round(Date.now() * 1000), null, persist, false);

   persist.progressListener = dl.QueryInterface(nsIWPL);

   persist.saveURI(dl.source, null, null, null, null, dl.targetFile, null);

   // Mark as pending, so clear this when we actually finish the download

   do_test_pending();

 }