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/* 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
"use strict";
if (!navigator.userAgentData) {
const { appVersion, userAgent } = navigator;
let actualPlatform = "linux";
if (appVersion.includes("Android")) {
actualPlatform = "android";
} else if (appVersion.includes("Macintosh")) {
actualPlatform = "mac";
} else if (appVersion.includes("Windows")) {
actualPlatform = "windows";
}
const mobile = actualPlatform == "android";
let version;
if (userAgent.includes("Chrome")) {
version = userAgent.match(/Chrome\/([0-9]+)/)[1];
} else {
version = (userAgent.match(/Firefox\/([0-9.]+)/) || ["", "58.0"])[1];
}
const wantedPlatform = window.__webcompat_spoof_platform ?? actualPlatform;
// Very roughly matches Chromium's GetPlatformForUAMetadata()
let platform = "Linux";
let platformVersion = "";
if (wantedPlatform == "android") {
platform = "Android";
platformVersion = "16.0.0";
} else if (wantedPlatform.startsWith("windows")) {
platform = "Windows";
platformVersion = "19.0.0";
} else if (wantedPlatform == "mac") {
platform = "macOS";
platformVersion = "26.0.0";
}
// These match Chrome's output as of version 146.
const brands = [
{
brand: "Not-A.Brand",
version: "24",
},
{
brand: "Chromium",
version,
},
{
brand: "Google Chrome",
version,
},
];
const userAgentData = {
brands,
mobile,
platform,
getHighEntropyValues() {
return Promise.resolve({
brands,
mobile,
platform,
platformVersion,
});
},
};
Object.defineProperty(Object.getPrototypeOf(navigator), "userAgentData", {
get: () => userAgentData,
set: () => {},
});
window.__webcompat = (window.__webcompat ?? new Set()).add(
"navigator.userAgentData"
);
}