tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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bug1950282-f1tv.formula1.com-unblock-firefox.js (3449B)

      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 "use strict";
      6 
      7 /**
      8 * Bug 1950282 - UA spoof for f1tv.formula1.com
      9 *
     10 * This site is deliberately blocking Firefox, possibly due to bug 1992579.
     11 */
     12 
     13 /* globals cloneInto, exportFunction */
     14 
     15 console.info(
     16  "The window environment is being altered for compatibility reasons. If you're a web developer working on this site, please get in touch with developer-outreach@mozilla.com. See https://bugzilla.mozilla.org/show_bug.cgi?id=1950282 for details."
     17 );
     18 
     19 delete window.wrappedJSObject.InstallTrigger;
     20 delete window.wrappedJSObject.mozInnerScreenX;
     21 delete window.wrappedJSObject.mozInnerScreenY;
     22 delete window.wrappedJSObject.MozConsentBanner;
     23 
     24 const nav = Object.getPrototypeOf(navigator.wrappedJSObject);
     25 const vendor = Object.getOwnPropertyDescriptor(nav, "vendor");
     26 vendor.get = exportFunction(() => "Google Inc.", window);
     27 Object.defineProperty(nav, "vendor", vendor);
     28 
     29 const css = CSS.wrappedJSObject;
     30 const supports = Object.getOwnPropertyDescriptor(css, "supports");
     31 const oldSupports = supports.value;
     32 supports.value = exportFunction(function (query) {
     33  if (query.includes("moz-")) {
     34    return false;
     35  }
     36  return oldSupports.call(this, query);
     37 }, window);
     38 Object.defineProperty(css, "supports", supports);
     39 
     40 function generateTimeStamp(base, factor = 10) {
     41  if (base) {
     42    // increase another timestamp by a little
     43    return (base + Math.random() * factor).toString().substr(0, 14);
     44  }
     45  const r = Math.random().toString();
     46  const d10 = `1${r.substr(5, 9)}`;
     47  const d3 = r.substr(2, 3);
     48  return parseFloat(`${d10}.${d3}`);
     49 }
     50 
     51 const startLoadTime = generateTimeStamp();
     52 const commitLoadTime = generateTimeStamp(startLoadTime);
     53 const firstPaintTime = generateTimeStamp(commitLoadTime);
     54 const finishDocumentLoadTime = generateTimeStamp(firstPaintTime);
     55 const finishLoadTime = generateTimeStamp(finishDocumentLoadTime);
     56 
     57 const csi = cloneInto(
     58  {
     59    onloadT: parseInt(finishDocumentLoadTime * 100),
     60    pageT: generateTimeStamp().toString().substr(-11),
     61    startE: parseInt(parseFloat(startLoadTime * 100)),
     62    tran: 10 + parseInt(4 + Math.random() * 4),
     63  },
     64  window
     65 );
     66 
     67 const loadTimes = cloneInto(
     68  {
     69    commitLoadTime,
     70    connectionInfo: "h3",
     71    finishDocumentLoadTime,
     72    finishLoadTime,
     73    firstPaintAfterLoadTime: 0,
     74    firstPaintTime,
     75    navigationType: "Other",
     76    npnNegotiatedProtocol: "h3",
     77    requestTime: startLoadTime,
     78    startLoadTime,
     79    wasAlternateProtocolAvailable: false,
     80    wasFetchedViaSpdy: true,
     81    wasNpnNegotiated: true,
     82  },
     83  window
     84 );
     85 
     86 window.wrappedJSObject.chrome = cloneInto(
     87  {
     88    app: {
     89      InstallState: {
     90        DISABLED: "disabled",
     91        INSTALLED: "installed",
     92        NOT_INSTALLED: "not_installed",
     93      },
     94      RunningState: {
     95        CANNOT_RUN: "cannot_run",
     96        READY_TO_RUN: "ready_to_run",
     97        RUNNING: "running",
     98      },
     99      getDetails() {
    100        return null;
    101      },
    102      getIsInstalled() {
    103        return false;
    104      },
    105      installState() {
    106        return undefined;
    107      },
    108      isInstalled: false,
    109      runningState() {
    110        return window.chrome.app.InstallState.NOT_INSTALLED;
    111      },
    112    },
    113    csi() {
    114      return csi;
    115    },
    116    loadTimes() {
    117      return loadTimes;
    118    },
    119  },
    120  window,
    121  { cloneFunctions: true }
    122 );