tor-browser

ua_helpers.js (6450B)

---

/* 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/. */

"use strict";

/* globals browser, exportFunction */

var UAHelpers = {
 _deviceAppropriateChromeUAs: {},
 getRunningFirefoxVersion() {
   return (navigator.userAgent.match(/Firefox\/([0-9.]+)/) || ["", "58.0"])[1];
 },
 getFxQuantumSegment() {
   return `FxQuantum/${UAHelpers.getRunningFirefoxVersion()} `;
 },
 getDeviceAppropriateChromeUA(config = {}) {
   let { androidVersion, version = "143.0.0.0", phone, tablet, OS } = config;
   const key = JSON.stringify(config);
   if (config.noCache || !UAHelpers._deviceAppropriateChromeUAs[key]) {
     const userAgent =
       config.ua ||
       (typeof navigator !== "undefined" ? navigator.userAgent : "");
     const fxQuantum = config.noFxQuantum
       ? ""
       : UAHelpers.getFxQuantumSegment();
     const noOSGiven = !OS || OS === "nonLinux";
     if (OS === "android" || (noOSGiven && userAgent.includes("Android"))) {
       const AndroidVersion = androidVersion
         ? `Android ${androidVersion}`
         : userAgent.match(/Android [0-9.]+/) || "Android 6.0";
       if (phone === undefined && tablet === undefined) {
         phone = userAgent.includes("Mobile");
         tablet = userAgent.includes("Tablet");
       }
       if (phone === true) {
         phone = "Nexus 5 Build/MRA58N";
       }
       if (tablet === true || (!tablet && !phone)) {
         tablet = "Nexus 7 Build/JSS15Q";
       }
       if (phone) {
         UAHelpers._deviceAppropriateChromeUAs[key] =
           `Mozilla/5.0 (Linux; ${AndroidVersion}; ${phone}) ${fxQuantum}AppleWebKit/537.36 (KHTML, like Gecko) Chrome/${version} Mobile Safari/537.36`;
       } else {
         UAHelpers._deviceAppropriateChromeUAs[key] =
           `Mozilla/5.0 (Linux; ${AndroidVersion}; ${tablet}) ${fxQuantum}AppleWebKit/537.36 (KHTML, like Gecko) Chrome/${version} Safari/537.36`;
       }
     } else {
       const WIN_SEGMENT = "Windows NT 11.0; Win64; x64";
       let osSegment;
       if (OS === "macOS" || (noOSGiven && userAgent.includes("Macintosh"))) {
         osSegment = "Macintosh; Intel Mac OS X 10_15_7";
       } else if (
         OS === "linux" ||
         (noOSGiven && userAgent.includes("Linux"))
       ) {
         if (OS !== "nonLinux") {
           osSegment = "X11; Ubuntu; Linux x86_64";
         } else {
           osSegment = WIN_SEGMENT;
         }
       } else {
         osSegment = WIN_SEGMENT;
       }

       UAHelpers._deviceAppropriateChromeUAs[key] =
         `Mozilla/5.0 (${osSegment}) ${fxQuantum}AppleWebKit/537.36 (KHTML, like Gecko) Chrome/${version} Safari/537.36`;
     }
   }
   return UAHelpers._deviceAppropriateChromeUAs[key];
 },
 addGecko(
   ua = navigator.userAgent,
   version = UAHelpers.getRunningFirefoxVersion()
 ) {
   return `${ua} Gecko/${version}`;
 },
 addChrome(ua = navigator.userAgent, version = "143.0.0.0") {
   const isMobile =
     navigator.userAgent.includes("Mobile") ||
     navigator.userAgent.includes("Tablet");
   return `${ua} AppleWebKit/537.36 (KHTML, like Gecko) Chrome/${version} ${isMobile ? "Mobile " : ""}Safari/537.36`;
 },
 safari(config = {}) {
   const version = config.version || "26.1";
   const webkitVersion = config.webkitVersion || "605.1.15";
   const osVersion = config.osVersion?.replace(".", "_") || "10_15_7";
   const arch = config.arch || "Intel";
   let firefox = "";
   if (config.withFirefox) {
     firefox = `Firefox/${UAHelpers.getRunningFirefoxVersion()} `;
   } else if (config.withFxQuantum) {
     firefox = UAHelpers.getFxQuantumSegment();
   }
   return `Mozilla/5.0 (Macintosh; ${arch} Mac OS X ${osVersion}) ${firefox}AppleWebKit/${webkitVersion} (KHTML, like Gecko) Version/${version} Safari/${webkitVersion}`;
 },
 androidHotspot2Device(originalUA) {
   return originalUA.replace(/\(.+?\)/, "(Linux; Android 10; K)");
 },
 changeFirefoxToFireFox(ua = navigator.userAgent) {
   return ua.replace("Firefox", "FireFox");
 },
 windows(ua = navigator.userAgent) {
   const rv = navigator.userAgent.match("rv:[0-9]+.[0-9]+")[0];
   return ua.replace(/\(.+?\)/, `(Windows NT 10.0; Win64; x64; ${rv})`);
 },
 desktopUA(ua = navigator.userAgent) {
   return ua.replace(/ (Mobile|Tablet);/, "");
 },
 addSamsungForSamsungDevices(ua = navigator.userAgent) {
   if (!browser.systemManufacturer) {
     return ua;
   }

   const manufacturer = browser.systemManufacturer.getManufacturer();
   if (manufacturer && manufacturer.toLowerCase() === "samsung") {
     return ua.replace("Mobile;", "Mobile; Samsung;");
   }

   return ua;
 },
 getPrefix(originalUA) {
   return originalUA.substr(0, originalUA.indexOf(")") + 1);
 },
 overrideWithDeviceAppropriateChromeUA(config) {
   const chromeUA = UAHelpers.getDeviceAppropriateChromeUA(config);
   const nav = Object.getPrototypeOf(navigator.wrappedJSObject);
   const ua = Object.getOwnPropertyDescriptor(nav, "userAgent");
   ua.get = exportFunction(() => chromeUA, window);
   Object.defineProperty(nav, "userAgent", ua);
 },
 capVersionTo99(originalUA) {
   const ver = originalUA.match(/Firefox\/(\d+\.\d+)/);
   if (!ver || parseFloat(ver[1]) < 100) {
     return originalUA;
   }
   return originalUA
     .replace(`Firefox/${ver[1]}`, "Firefox/99.0")
     .replace(`rv:${ver[1]}`, "rv:99.0");
 },
 capRvTo109(originalUA) {
   const ver = originalUA.match(/rv:(\d+\.\d+)/);
   if (!ver || parseFloat(ver[1]) <= 109) {
     return originalUA;
   }
   return originalUA.replace(`rv:${ver[1]}`, "rv:109.0");
 },
 capVersionToNumber(originalUA, cap = 120) {
   const ver = originalUA.match(/Firefox\/(\d+\.\d+)/);
   if (!ver || parseFloat(ver[1]) <= cap) {
     return originalUA;
   }
   const capped = `Firefox/${cap}.0`;
   return originalUA.replace(`Firefox/${ver[1]}`, capped);
 },
 getMacOSXUA(originalUA, arch = "Intel", version = "10.15") {
   return originalUA.replace(
     /\(.+?\)/,
     `(Macintosh; ${arch} Mac OS X ${version})`
   );
 },
 getWindowsUA(originalUA) {
   const rv = originalUA.match("rv:[0-9]+.[0-9]+")[0];
   const ver = originalUA.match("Firefox/[0-9]+.[0-9]+")[0];
   return `Mozilla/5.0 (Windows NT 10.0; Win64; x64; ${rv}) Gecko/20100101 ${ver}`;
 },
};