tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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IPPNimbusHelper.sys.mjs (1465B)

      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 /**
      6 * Note: If you add or modify the list of helpers, make sure to update the
      7 * corresponding documentation in the `docs` folder as well.
      8 */
      9 
     10 const lazy = {};
     11 
     12 ChromeUtils.defineESModuleGetters(lazy, {
     13  IPProtectionService:
     14    "moz-src:///browser/components/ipprotection/IPProtectionService.sys.mjs",
     15  NimbusFeatures: "resource://nimbus/ExperimentAPI.sys.mjs",
     16 });
     17 /**
     18 * This class monitors the eligibility flag from Nimbus
     19 */
     20 class IPPNimbusHelperSingleton {
     21  init() {}
     22 
     23  initOnStartupCompleted() {
     24    lazy.NimbusFeatures.ipProtection.onUpdate(
     25      lazy.IPProtectionService.updateState
     26    );
     27  }
     28 
     29  uninit() {
     30    lazy.NimbusFeatures.ipProtection.offUpdate(
     31      lazy.IPProtectionService.updateState
     32    );
     33  }
     34 
     35  /**
     36   * Check if this device is in the experiment with a variant branch.
     37   *
     38   * @returns {boolean}
     39   */
     40  get isEligible() {
     41    let inExperiment = lazy.NimbusFeatures.ipProtection.getEnrollmentMetadata();
     42    let isEligible = inExperiment?.branch && inExperiment.branch !== "control";
     43 
     44    if (inExperiment) {
     45      lazy.NimbusFeatures.ipProtection.recordExposureEvent({
     46        once: true,
     47      });
     48    }
     49 
     50    return isEligible;
     51  }
     52 }
     53 
     54 const IPPNimbusHelper = new IPPNimbusHelperSingleton();
     55 
     56 export { IPPNimbusHelper };