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Improve desktop security by isolating Electron

Browse Source 
Enable `contextIsolation` in Electron to securely expose a limited set
of Node.js APIs to the renderer process. It:

1. Isolates renderer and main process contexts. It ensures that the
   powerful main process functions aren't directly accessible from
   renderer process(es), adding a security boundary.
2. Mitigates remote exploitation risks. By isolating contexts, potential
   malicious code injections in the renderer can't directly reach and
   compromise the main process.
3. Reduces attack surface.
4. Protect against prototype pollution: It prevents tampering of
   JavaScript object prototypes in one context from affecting another
   context, improving app reliability and security.

Supporting changes include:

- Extract environment and system operations classes to the infrastructure
  layer. This removes node dependencies from core domain and application
  code.
- Introduce `ISystemOperations` to encapsulate OS interactions. Use it
  from `CodeRunner` to isolate node API usage.
- Add a preloader script to inject validated environment variables into
  renderer context. This keeps Electron integration details
  encapsulated.
- Add new sanity check to fail fast on issues with preloader injected
  variables.
- Improve test coverage of runtime sanity checks and environment
  components. Move validation logic into separate classes for Single
  Responsibility.
- Improve absent value test case generation.
This commit is contained in:
undergroundwires
2023-08-25 14:31:30 +02:00
parent 62f8bfac2f
commit e9e0001ef8
83 changed files with 1846 additions and 769 deletions
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35
tests/unit/infrastructure/Environment/BrowserOs/BrowserOsDetector.spec.ts Normal file
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import { describe, it, expect } from 'vitest';
import { OperatingSystem } from '@/domain/OperatingSystem';
import { BrowserOsDetector } from '@/infrastructure/Environment/BrowserOs/BrowserOsDetector';
import { itEachAbsentStringValue } from '@tests/unit/shared/TestCases/AbsentTests';
import { BrowserOsTestCases } from './BrowserOsTestCases';
describe('BrowserOsDetector', () => {
describe('returns undefined when user agent is absent', () => {
itEachAbsentStringValue((absentValue) => {
// arrange
const expected = undefined;
const userAgent = absentValue;
const sut = new BrowserOsDetector();
// act
const actual = sut.detect(userAgent);
// assert
expect(actual).to.equal(expected);
});
});
it('detects as expected', () => {
BrowserOsTestCases.forEach((testCase) => {
// arrange
const sut = new BrowserOsDetector();
// act
const actual = sut.detect(testCase.userAgent);
// assert
expect(actual).to.equal(testCase.expectedOs, printMessage());
function printMessage(): string {
return `Expected: "${OperatingSystem[testCase.expectedOs]}"\n`
+ `Actual: "${OperatingSystem[actual]}"\n`
+ `UserAgent: "${testCase.userAgent}"`;
}
});
});
});

337
tests/unit/infrastructure/Environment/BrowserOs/BrowserOsTestCases.ts Normal file
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import { OperatingSystem } from '@/domain/OperatingSystem';
interface IBrowserOsTestCase {
userAgent: string;
expectedOs: OperatingSystem;
}
export const BrowserOsTestCases: ReadonlyArray<IBrowserOsTestCase> = [
{
userAgent: 'Mozilla/5.0 (Windows NT 6.3; Win64, x64; Trident/7.0; rv:11.0) like Gecko',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Win64; x64; Trident/6.0)',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.0; Trident/5.0)',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0)',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36 Edge/18.17763',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36 Edge/17.17134',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (Windows NT 10.0; WebView/3.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36 Edge/16.16299',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36 Edge/15.15063',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.82 Safari/537.36 Edge/14.14316',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Safari/537.36 Edge/13.10586',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (Windows Phone 10.0; Android 5.1.1; NOKIA; Lumia 1520) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Mobile Safari/537.36 Edge/13.10586',
expectedOs: OperatingSystem.WindowsPhone,
},
{
userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.10136',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:66.0) Gecko/20100101 Firefox/66.0',
expectedOs: OperatingSystem.macOS,
},
{
userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36',
expectedOs: OperatingSystem.macOS,
},
{
userAgent: 'Mozilla/5.0 (X11; CrOS x86_64 11316.165.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.122 Safari/537.36',
expectedOs: OperatingSystem.ChromeOS,
},
{
userAgent: 'Mozilla/5.0 (X11; CrOS x86_64 8872.76.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.105 Safari/537.36',
expectedOs: OperatingSystem.ChromeOS,
},
{
userAgent: 'Mozilla/5.0 (X11; CrOS armv7l 4537.56.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.38 Safari/537.36',
expectedOs: OperatingSystem.ChromeOS,
},
{
userAgent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.3 Safari/605.1.15',
expectedOs: OperatingSystem.macOS,
},
{
userAgent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/11.1.2 Safari/605.1.15',
expectedOs: OperatingSystem.macOS,
},
{
userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36 OPR/58.0.3135.114',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.170 Safari/537.36 OPR/53.0.2907.68',
expectedOs: OperatingSystem.macOS,
},
{
userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2393.94 Safari/537.36 OPR/42.0.2393.94',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.82 Safari/537.36 OPR/29.0.1795.41 (Edition beta)',
expectedOs: OperatingSystem.macOS,
},
{
userAgent: 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.52 Safari/537.36 OPR/15.0.1147.100',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Opera/9.80 (Windows NT 6.0) Presto/2.12.388 Version/12.14',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Opera/9.80 (Windows NT 6.0; U; en) Presto/2.2.15 Version/10.10',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Opera/9.27 (Windows NT 5.1; U; en)',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (iPhone; CPU iPhone OS 12_1_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0 Mobile/15E148 Safari/604.1',
expectedOs: OperatingSystem.iOS,
},
{
userAgent: 'Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/11.0 Mobile/15A372 Safari/604.1',
expectedOs: OperatingSystem.iOS,
},
{
userAgent: 'Mozilla/5.0 (iPhone; CPU iPhone OS 10_0 like Mac OS X) AppleWebKit/602.1.38 (KHTML, like Gecko) Version/10.0 Mobile/14A300 Safari/602.1',
expectedOs: OperatingSystem.iOS,
},
{
userAgent: 'Mozilla/5.0 (iPhone; CPU iPhone OS 9_1 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13B143 Safari/601.1',
expectedOs: OperatingSystem.iOS,
},
{
userAgent: 'Opera/9.80 (Android; Opera Mini/32.0/88.150; U; sr) Presto/2.12 Version/12.16',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Opera/9.80 (Android; Opera Mini/8.0.1807/36.1609; U; en) Presto/2.12.423 Version/12.16',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; U; Android 4.4.4; pt-br; SM-G530BT Build/KTU84P) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; U; Android 4.4.2; zh-cn; Q40; Android/4.4.2; Release/12.15.2015) AppleWebKit/534.30 (KHTML, like Gecko) Mobile Safari/534.30',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; U; Android 4.3; en-us; SM-N900T Build/JSS15J) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; U; Android 4.1; en-us; GT-N7100 Build/JRO03C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; U; Android 4.0; en-us; GT-I9300 Build/IMM76D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (BB10; Touch) AppleWebKit/537.10+ (KHTML, like Gecko) Version/10.1.0.1429 Mobile Safari/537.10+',
expectedOs: OperatingSystem.BlackBerry,
},
{
userAgent: 'Mozilla/5.0 (PlayBook; U; RIM Tablet OS 2.0.0; en-US) AppleWebKit/535.8+ (KHTML, like Gecko) Version/7.2.0.0 Safari/535.8+',
expectedOs: OperatingSystem.BlackBerryTabletOS,
},
{
userAgent: 'Mozilla/5.0 (BlackBerry; U; BlackBerry 9800; en-US) AppleWebKit/534.8+ (KHTML, like Gecko) Version/6.0.0.466 Mobile Safari/534.8+',
expectedOs: OperatingSystem.BlackBerryOS,
},
{
userAgent: 'Mozilla/5.0 (Linux; Android 4.4.4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.52 Safari/537.36 Mobile OPR/15.0.1147.100',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; Android 2.3.4; MT11i Build/4.0.2.A.0.62) AppleWebKit/537.22 (KHTML, like Gecko) Chrome/25.0.1364.123 Mobile Safari/537.22 OPR/14.0.1025.52315',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Opera/9.80 (Windows NT 6.1; Opera Tablet/15165; U; en) Presto/2.8.149 Version/11.1',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Opera/9.80 (Android 2.2; Opera Mobi/-2118645896; U; pl) Presto/2.7.60 Version/10.5',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; Android 9; SM-G960U) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; Android 6.0; CAM-L03) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.99 Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; Android 5.1.1; Nexus 6 Build/LYZ28E) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.76 Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; Android 4.4.2; Nexus 4 Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.76 Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; Android 4.2.2; GT-I9505 Build/JDQ39) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.76 Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; Android 4.3; Nexus 10 Build/JSS15Q) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.76 Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; U; Android 4.4.2; en-us; LGMS323 Build/KOT49I.MS32310c) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/46.0.2490.76 Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Android 9; Mobile; rv:64.0) Gecko/64.0 Firefox/64.0',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Android 4.4; Mobile; rv:41.0) Gecko/41.0 Firefox/41.0',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (iPhone; CPU iPhone OS 8_3 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) FxiOS/1.0 Mobile/12F69 Safari/600.1.4',
expectedOs: OperatingSystem.iOS,
},
{
userAgent: 'Mozilla/5.0 (Mobile; Windows Phone 8.1; Android 4.0; ARM; Trident/7.0; Touch; rv:11.0; IEMobile/11.0; NOKIA; Lumia 625) like iPhone OS 7_0_3 Mac OS X AppleWebKit/537 (KHTML, like Gecko) Mobile Safari/537',
expectedOs: OperatingSystem.WindowsPhone,
},
{
userAgent: 'Mozilla/5.0 (compatible; MSIE 10.0; Windows Phone 8.0; Trident/6.0; IEMobile/10.0; ARM; Touch; NOKIA; Lumia 520)',
expectedOs: OperatingSystem.WindowsPhone,
},
{
userAgent: 'Mozilla/5.0 (Linux; U; Android 6.0; en-US; CPH1609 Build/MRA58K) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.108 UCBrowser/12.10.2.1164 Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'UCWEB/2.0 (Linux; U; Adr 5.1; en-US; Lenovo Z90a40 Build/LMY47O) U2/1.0.0 UCBrowser/11.1.5.890 U2/1.0.0 Mobile',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; U; Android 5.1; en-US; Lenovo Z90a40 Build/LMY47O) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 UCBrowser/11.1.5.890 U3/0.8.0 Mobile Safari/534.30',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'UCWEB/2.0 (Linux; U; Adr 2.3; en-US; MI-ONEPlus) U2/1.0.0 UCBrowser/8.6.0.199 U2/1.0.0 Mobile',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; U; Android 2.3; zh-CN; MI-ONEPlus) AppleWebKit/534.13 (KHTML, like Gecko) UCBrowser/8.6.0.199 U3/0.8.0 Mobile Safari/534.13',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; Android 9; SAMSUNG SM-G965F Build/PPR1.180610.011) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/9.0 Chrome/67.0.3396.87 Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; Android 8.0.0; SAMSUNG SM-G955U Build/R16NW) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/8.2 Chrome/63.0.3239.111 Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; Android 7.0; SAMSUNG SM-J330FN Build/NRD90M) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/7.2 Chrome/59.0.3071.125 Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; Android 5.0.2; SAMSUNG SM-G925F Build/LRX22G) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/4.0 Chrome/44.0.2403.133 Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; Android 5.0.2; SAMSUNG SM-G925F Build/LRX22G) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/4.0 Chrome/44.0.2403.133 Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; U; Android 8.1.0; zh-cn; vivo X21A Build/OPM1.171019.011) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.132 MQQBrowser/9.1 Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; U; Android 4.4.2; zh-cn; GT-I9500 Build/KOT49H) AppleWebKit/537.36 (KHTML, like Gecko)Version/4.0 MQQBrowser/5.0 QQ-URL-Manager Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Linux; Android 9; ONEPLUS A6003) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Mobile Safari/537.36',
expectedOs: OperatingSystem.Android,
},
{
userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (Windows NT 6.4; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0',
expectedOs: OperatingSystem.Windows,
},
{
userAgent: 'Mozilla/5.0 (iPhone; CPU iPhone OS 12_1_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0 Mobile/15E148 Safari/604.1',
expectedOs: OperatingSystem.iOS,
},
{
userAgent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36',
expectedOs: OperatingSystem.macOS,
},
{
userAgent: 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:66.0) Gecko/20100101 Firefox/66.0',
expectedOs: OperatingSystem.Linux,
},
{
userAgent: 'Mozilla/5.0 (X11; CrOS x86_64 11316.165.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.122 Safari/537.36',
expectedOs: OperatingSystem.ChromeOS,
},
{
userAgent: 'Mozilla/5.0 (Mobile; LYF/F90M/LYF_F90M_000-03-12-110119; Android; rv:48.0) Gecko/48.0 Firefox/48.0 KAIOS/2.5',
expectedOs: OperatingSystem.KaiOS,
},
];

219
tests/unit/infrastructure/Environment/Environment.spec.ts Normal file
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import { describe, it, expect } from 'vitest';
import { IBrowserOsDetector } from '@/infrastructure/Environment/BrowserOs/IBrowserOsDetector';
import { OperatingSystem } from '@/domain/OperatingSystem';
import { Environment, WindowValidator } from '@/infrastructure/Environment/Environment';
import { SystemOperationsStub } from '@tests/unit/shared/Stubs/SystemOperationsStub';
import { itEachAbsentObjectValue } from '@tests/unit/shared/TestCases/AbsentTests';
import { WindowVariables } from '@/infrastructure/Environment/WindowVariables';
import { BrowserOsDetectorStub } from '@tests/unit/shared/Stubs/BrowserOsDetectorStub';
describe('Environment', () => {
describe('ctor', () => {
describe('throws if window is absent', () => {
itEachAbsentObjectValue((absentValue) => {
// arrange
const expectedError = 'missing window';
const absentWindow = absentValue;
// act
const act = () => createEnvironment({
window: absentWindow,
});
// assert
expect(act).to.throw(expectedError);
});
});
});
describe('isDesktop', () => {
it('returns true when window property isDesktop is true', () => {
// arrange
const desktopWindow = {
isDesktop: true,
};
// act
const sut = createEnvironment({
window: desktopWindow,
});
// assert
expect(sut.isDesktop).to.equal(true);
});
it('returns false when window property isDesktop is false', () => {
// arrange
const expectedValue = false;
const browserWindow = {
isDesktop: false,
};
// act
const sut = createEnvironment({
window: browserWindow,
});
// assert
expect(sut.isDesktop).to.equal(expectedValue);
});
});
describe('os', () => {
it('returns undefined if user agent is missing', () => {
// arrange
const expected = undefined;
const browserDetectorMock: IBrowserOsDetector = {
detect: () => {
throw new Error('should not reach here');
},
};
const sut = createEnvironment({
browserOsDetector: browserDetectorMock,
});
// act
const actual = sut.os;
// assert
expect(actual).to.equal(expected);
});
it('gets browser os from BrowserOsDetector', () => {
// arrange
const givenUserAgent = 'testUserAgent';
const expected = OperatingSystem.macOS;
const windowWithUserAgent = {
navigator: {
userAgent: givenUserAgent,
},
};
const browserDetectorMock: IBrowserOsDetector = {
detect: (agent) => {
if (agent !== givenUserAgent) {
throw new Error('Unexpected user agent');
}
return expected;
},
};
// act
const sut = createEnvironment({
window: windowWithUserAgent as Partial<Window>,
browserOsDetector: browserDetectorMock,
});
const actual = sut.os;
// assert
expect(actual).to.equal(expected);
});
describe('desktop os', () => {
describe('returns from window property `os`', () => {
const testValues = [
OperatingSystem.macOS,
OperatingSystem.Windows,
OperatingSystem.Linux,
];
testValues.forEach((testValue) => {
it(`given ${OperatingSystem[testValue]}`, () => {
// arrange
const expectedOs = testValue;
const desktopWindowWithOs = {
isDesktop: true,
os: expectedOs,
};
// act
const sut = createEnvironment({
window: desktopWindowWithOs,
});
// assert
const actualOs = sut.os;
expect(actualOs).to.equal(expectedOs);
});
});
});
describe('returns undefined when window property `os` is absent', () => {
itEachAbsentObjectValue((absentValue) => {
// arrange
const expectedValue = undefined;
const windowWithAbsentOs = {
os: absentValue,
};
// act
const sut = createEnvironment({
window: windowWithAbsentOs,
});
// assert
expect(sut.os).to.equal(expectedValue);
});
});
});
});
describe('system', () => {
it('fetches system operations from window', () => {
// arrange
const expectedSystem = new SystemOperationsStub();
const windowWithSystem = {
system: expectedSystem,
};
// act
const sut = createEnvironment({
window: windowWithSystem,
});
// assert
const actualSystem = sut.system;
expect(actualSystem).to.equal(expectedSystem);
});
});
describe('validateWindow', () => {
it('throws when validator throws', () => {
// arrange
const expectedErrorMessage = 'expected error thrown from window validator';
const mockValidator: WindowValidator = () => {
throw new Error(expectedErrorMessage);
};
// act
const act = () => createEnvironment({
windowValidator: mockValidator,
});
// assert
expect(act).to.throw(expectedErrorMessage);
});
it('does not throw when validator does not throw', () => {
// arrange
const expectedErrorMessage = 'expected error thrown from window validator';
const mockValidator: WindowValidator = () => {
// do not throw
};
// act
const act = () => createEnvironment({
windowValidator: mockValidator,
});
// assert
expect(act).to.not.throw(expectedErrorMessage);
});
it('sends expected window to validator', () => {
// arrange
const expectedVariables: Partial<WindowVariables> = {};
let actualVariables: Partial<WindowVariables>;
const mockValidator: WindowValidator = (variables) => {
actualVariables = variables;
};
// act
createEnvironment({
window: expectedVariables,
windowValidator: mockValidator,
});
// assert
expect(actualVariables).to.equal(expectedVariables);
});
});
});
interface EnvironmentOptions {
window: Partial<Window>;
browserOsDetector?: IBrowserOsDetector;
windowValidator?: WindowValidator;
}
function createEnvironment(options: Partial<EnvironmentOptions> = {}): TestableEnvironment {
const defaultOptions: EnvironmentOptions = {
window: {},
browserOsDetector: new BrowserOsDetectorStub(),
windowValidator: () => { /* NO OP */ },
};
return new TestableEnvironment({ ...defaultOptions, ...options });
}
class TestableEnvironment extends Environment {
public constructor(options: EnvironmentOptions) {
super(options.window, options.browserOsDetector, options.windowValidator);
}
}

160
tests/unit/infrastructure/Environment/WindowVariablesValidator.spec.ts Normal file
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import { describe, it, expect } from 'vitest';
import { validateWindowVariables } from '@/infrastructure/Environment/WindowVariablesValidator';
import { OperatingSystem } from '@/domain/OperatingSystem';
import { SystemOperationsStub } from '@tests/unit/shared/Stubs/SystemOperationsStub';
import { WindowVariables } from '@/infrastructure/Environment/WindowVariables';
import { itEachAbsentObjectValue } from '@tests/unit/shared/TestCases/AbsentTests';
describe('WindowVariablesValidator', () => {
describe('validateWindowVariables', () => {
describe('invalid types', () => {
it('throws an error if variables is not an object', () => {
// arrange
const expectedError = 'window is not an object but string';
const variablesAsString = 'not an object';
// act
const act = () => validateWindowVariables(variablesAsString as unknown);
// assert
expect(act).to.throw(expectedError);
});
it('throws an error if variables is an array', () => {
// arrange
const expectedError = 'window is not an object but object';
const arrayVariables: unknown = [];
// act
const act = () => validateWindowVariables(arrayVariables as unknown);
// assert
expect(act).to.throw(expectedError);
});
describe('throws an error if variables is null', () => {
itEachAbsentObjectValue((absentValue) => {
// arrange
const expectedError = 'missing variables';
const variables = absentValue;
// act
const act = () => validateWindowVariables(variables as unknown);
// assert
expect(act).to.throw(expectedError);
});
});
});
describe('property validations', () => {
it('throws an error with a description of all invalid properties', () => {
// arrange
const expectedError = 'Unexpected os (string)\nUnexpected isDesktop (string)';
const input = {
os: 'invalid',
isDesktop: 'not a boolean',
};
// act
const act = () => validateWindowVariables(input as unknown);
// assert
expect(act).to.throw(expectedError);
});
describe('`os` property', () => {
it('throws an error when os is not a number', () => {
// arrange
const expectedError = 'Unexpected os (string)';
const input = {
os: 'Linux',
};
// act
const act = () => validateWindowVariables(input as unknown);
// assert
expect(act).to.throw(expectedError);
});
it('throws an error for an invalid numeric os value', () => {
// arrange
const expectedError = 'Unexpected os (number)';
const input = {
os: Number.MAX_SAFE_INTEGER,
};
// act
const act = () => validateWindowVariables(input as unknown);
// assert
expect(act).to.throw(expectedError);
});
it('does not throw for a missing os value', () => {
const input = {
isDesktop: true,
system: new SystemOperationsStub(),
};
// act
const act = () => validateWindowVariables(input);
// assert
expect(act).to.not.throw();
});
});
describe('`isDesktop` property', () => {
it('throws an error when only isDesktop is provided and it is true without a system object', () => {
// arrange
const expectedError = 'Unexpected system (undefined)';
const input = {
isDesktop: true,
};
// act
const act = () => validateWindowVariables(input as unknown);
// assert
expect(act).to.throw(expectedError);
});
it('does not throw when isDesktop is true with a valid system object', () => {
// arrange
const input = {
isDesktop: true,
system: new SystemOperationsStub(),
};
// act
const act = () => validateWindowVariables(input);
// assert
expect(act).to.not.throw();
});
it('does not throw when isDesktop is false without a system object', () => {
// arrange
const input = {
isDesktop: false,
};
// act
const act = () => validateWindowVariables(input);
// assert
expect(act).to.not.throw();
});
});
describe('`system` property', () => {
it('throws an error if system is not an object', () => {
// arrange
const expectedError = 'Unexpected system (string)';
const input = {
isDesktop: true,
system: 'invalid system',
};
// act
const act = () => validateWindowVariables(input as unknown);
// assert
expect(act).to.throw(expectedError);
});
});
});
it('does not throw for a valid object', () => {
const input: WindowVariables = {
os: OperatingSystem.Windows,
isDesktop: true,
system: new SystemOperationsStub(),
};
// act
const act = () => validateWindowVariables(input);
// assert
expect(act).to.not.throw();
});
});
});