tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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AppInfo.sys.mjs (4007B)

      1 /* This Source Code Form is subject to the terms of the Mozilla Public
      2 * License, v. 2.0. If a copy of the MPL was not distributed with this
      3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      4 
      5 let origPlatformInfo = Cc["@mozilla.org/xre/app-info;1"].getService(
      6  Ci.nsIPlatformInfo
      7 );
      8 
      9 // eslint-disable-next-line mozilla/use-services
     10 let origRuntime = Cc["@mozilla.org/xre/app-info;1"].getService(
     11  Ci.nsIXULRuntime
     12 );
     13 
     14 /**
     15 * Create new XULAppInfo instance with specified options.
     16 *
     17 * options is a object with following keys:
     18 *   ID:              nsIXULAppInfo.ID
     19 *   name:            nsIXULAppInfo.name
     20 *   version:         nsIXULAppInfo.version
     21 *   platformVersion: nsIXULAppInfo.platformVersion
     22 *   OS:              nsIXULRuntime.OS
     23 *   appBuildID:      nsIXULRuntime.appBuildID
     24 *   lastAppBuildID:  nsIXULRuntime.lastAppBuildID
     25 *   lastAppVersion:  nsIXULRuntime.lastAppVersion
     26 *
     27 *   crashReporter:   nsICrashReporter interface is implemented if true
     28 */
     29 export var newAppInfo = function (options = {}) {
     30  let appInfo = {
     31    // nsIXULAppInfo
     32    vendor: "Mozilla",
     33    name: options.name ?? "xpcshell",
     34    ID: options.ID ?? "xpcshell@tests.mozilla.org",
     35    version: options.version ?? "1",
     36    appBuildID: options.appBuildID ?? "20160315",
     37 
     38    // nsIPlatformInfo
     39    platformVersion: options.platformVersion ?? "p-ver",
     40    platformBuildID: origPlatformInfo.platformBuildID,
     41 
     42    // nsIXULRuntime
     43    ...Ci.nsIXULRuntime,
     44    inSafeMode: false,
     45    logConsoleErrors: true,
     46    OS: options.OS ?? "XPCShell",
     47    XPCOMABI: "noarch-spidermonkey",
     48    invalidateCachesOnRestart() {},
     49    processType: origRuntime.processType,
     50    uniqueProcessID: origRuntime.uniqueProcessID,
     51 
     52    fissionAutostart: origRuntime.fissionAutostart,
     53    sessionHistoryInParent: origRuntime.sessionHistoryInParent,
     54    browserTabsRemoteAutostart: origRuntime.browserTabsRemoteAutostart,
     55    get maxWebProcessCount() {
     56      return origRuntime.maxWebProcessCount;
     57    },
     58    get launcherProcessState() {
     59      return origRuntime.launcherProcessState;
     60    },
     61 
     62    // nsIWinAppHelper
     63    get userCanElevate() {
     64      return false;
     65    },
     66  };
     67 
     68  appInfo.lastAppBuildID = options.lastAppBuildID ?? appInfo.appBuildID;
     69  appInfo.lastAppVersion = options.lastAppVersion ?? appInfo.version;
     70 
     71  let interfaces = [
     72    Ci.nsIXULAppInfo,
     73    Ci.nsIPlatformInfo,
     74    Ci.nsIXULRuntime,
     75    Ci.nsICrashReporter,
     76  ];
     77  if ("nsIWinAppHelper" in Ci) {
     78    interfaces.push(Ci.nsIWinAppHelper);
     79  }
     80 
     81  // nsICrashReporter
     82  appInfo.annotations = {};
     83  appInfo.annotateCrashReport = function (key, data) {
     84    if (options.crashReporter) {
     85      this.annotations[key] = data;
     86    } else {
     87      throw Components.Exception("", Cr.NS_ERROR_NOT_INITIALIZED);
     88    }
     89  };
     90 
     91  appInfo.QueryInterface = ChromeUtils.generateQI(interfaces);
     92 
     93  return appInfo;
     94 };
     95 
     96 var currentAppInfo = newAppInfo();
     97 
     98 /**
     99 * Obtain a reference to the current object used to define XULAppInfo.
    100 */
    101 export var getAppInfo = function () {
    102  return currentAppInfo;
    103 };
    104 
    105 /**
    106 * Update the current application info.
    107 *
    108 * See newAppInfo for options.
    109 *
    110 * To change the current XULAppInfo, simply call this function. If there was
    111 * a previously registered app info object, it will be unloaded and replaced.
    112 */
    113 export var updateAppInfo = function (options) {
    114  currentAppInfo = newAppInfo(options);
    115 
    116  let id = Components.ID("{fbfae60b-64a4-44ef-a911-08ceb70b9f31}");
    117  let contractid = "@mozilla.org/xre/app-info;1";
    118  let registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
    119 
    120  // Unregister an existing factory if one exists.
    121  try {
    122    let existing = Components.manager.getClassObjectByContractID(
    123      contractid,
    124      Ci.nsIFactory
    125    );
    126    registrar.unregisterFactory(id, existing);
    127  } catch (ex) {}
    128 
    129  let factory = {
    130    createInstance(iid) {
    131      return currentAppInfo.QueryInterface(iid);
    132    },
    133  };
    134 
    135  Services.appinfo = currentAppInfo;
    136 
    137  registrar.registerFactory(id, "XULAppInfo", contractid, factory);
    138 };