Dynamically set electron user agent (#524)

* Dynamically set electron user agent

* PR review

* linter fixes

* Test agent static version does not change

* Fix formatting
This commit is contained in:
Matt Gibson 2021-10-26 08:45:32 -05:00 committed by GitHub
parent 257de6517c
commit 0f9c2205d5
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3 changed files with 54 additions and 7 deletions

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@ -46,3 +46,19 @@ export function isSnapStore() {
export function isWindowsPortable() {
return process.platform === 'win32' && process.env.PORTABLE_EXECUTABLE_DIR != null;
}
/**
* Sanitize user agent so external resources used by the app can't built data on our users.
*/
export function cleanUserAgent(userAgent: string): string {
const userAgentItem = (startString: string, endString: string) => {
const startIndex = userAgent.indexOf(startString);
return userAgent.substring(startIndex, userAgent.indexOf(endString, startIndex) + 1);
};
const systemInformation = '(Windows NT 10.0; Win64; x64)';
// Set system information, remove bitwarden, and electron information
return userAgent.replace(userAgentItem('(', ')'), systemInformation)
.replace(userAgentItem('Bitwarden', ' '), '')
.replace(userAgentItem('Electron', ' '), '');
}

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@ -11,6 +11,7 @@ import { StorageService } from 'jslib-common/abstractions/storage.service';
import { ElectronConstants } from './electronConstants';
import {
cleanUserAgent,
isDev,
isMacAppStore,
isSnapStore,
@ -139,13 +140,16 @@ export class WindowMain {
this.win.show();
// and load the index.html of the app.
this.win.loadURL(url.format({
protocol: 'file:',
pathname: path.join(__dirname, '/index.html'),
slashes: true,
}), {
userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:74.0) Gecko/20100101 Firefox/74.0',
});
this.win.loadURL(url.format(
{
protocol: 'file:',
pathname: path.join(__dirname, '/index.html'),
slashes: true,
}),
{
userAgent: cleanUserAgent(this.win.webContents.userAgent),
}
);
// Open the DevTools.
if (isDev()) {

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@ -0,0 +1,27 @@
import { cleanUserAgent } from 'jslib-electron/utils';
const expectedUserAgent = `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/${process.versions.chrome} Safari/537.36`;
describe('cleanUserAgent', () => {
it('cleans mac agent', () => {
const initialMacAgent = `Mozilla/5.0 (Macintosh; Intel Mac OS X 11_6_0) AppleWebKit/537.36 (KHTML, like Gecko) Bitwarden/${process.version} Chrome/${process.versions.chrome} Electron/${process.versions.electron} Safari/537.36`;
expect(cleanUserAgent(initialMacAgent)).toEqual(expectedUserAgent);
});
it('cleans windows agent', () => {
const initialWindowsAgent = `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Bitwarden/${process.version} Chrome/${process.versions.chrome} Electron/${process.versions.electron} Safari/537.36`;
expect(cleanUserAgent(initialWindowsAgent)).toEqual(expectedUserAgent);
});
it('cleans linux agent', () => {
const initialWindowsAgent = `Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Bitwarden/${process.version} Chrome/${process.versions.chrome} Electron/${process.versions.electron} Safari/537.36`;
expect(cleanUserAgent(initialWindowsAgent)).toEqual(expectedUserAgent);
});
it('does not change version numbers', () => {
const expected = `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36`;
const initialAgent = `Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Bitwarden/1.28.3 Chrome/87.0.4280.141 Electron/11.4.5 Safari/537.36`;
expect(cleanUserAgent(initialAgent)).toEqual(expected);
});
});