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4gray
1ab82b04a1
Supersedes #1252 and #872. uuid 14 is ESM-only, apps/web/jest.config.ts only kept v9 working by mapping `^uuid$` at a `wrapper.mjs` that v14 no longer ships, and the specifier also has to be synced in libs/shared/m3u-utils/package.json or @nx/dependency-checks fails lint. All four call sites only used `v4()`, so the dependency goes away instead. `createRandomId()` prefers `crypto.randomUUID()` and falls back to building the same v4 shape from `crypto.getRandomValues()` — that fallback is load-bearing, because randomUUID is only exposed in secure contexts and the self-hosted PWA is regularly served over plain http on a LAN address. getRandomValues stays available there, and it is what uuid's own v4 used. `@types/uuid` goes too; it only existed for the untyped v9 package.
85 lines
2.4 KiB
TypeScript
85 lines
2.4 KiB
TypeScript
import { createRandomId } from './random-id.util';
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const UUID_V4 =
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/^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/;
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describe('createRandomId', () => {
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const nativeRandomUUID = crypto.randomUUID;
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afterEach(() => {
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Object.defineProperty(crypto, 'randomUUID', {
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configurable: true,
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value: nativeRandomUUID,
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});
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});
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it('returns a v4 uuid', () => {
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expect(createRandomId()).toMatch(UUID_V4);
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});
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it('returns unique ids', () => {
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const ids = new Set(
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Array.from({ length: 500 }, () => createRandomId())
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);
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expect(ids.size).toBe(500);
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});
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it('uses the native randomUUID when the context exposes it', () => {
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const randomUUID = jest
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.fn()
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.mockReturnValue('11111111-1111-4111-8111-111111111111');
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Object.defineProperty(crypto, 'randomUUID', {
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configurable: true,
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value: randomUUID,
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});
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expect(createRandomId()).toBe('11111111-1111-4111-8111-111111111111');
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expect(randomUUID).toHaveBeenCalledTimes(1);
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});
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describe('without randomUUID (insecure context)', () => {
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beforeEach(() => {
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Object.defineProperty(crypto, 'randomUUID', {
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configurable: true,
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value: undefined,
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});
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});
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it('still returns a v4 uuid from getRandomValues', () => {
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expect(createRandomId()).toMatch(UUID_V4);
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});
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it('returns unique ids', () => {
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const ids = new Set(
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Array.from({ length: 500 }, () => createRandomId())
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);
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expect(ids.size).toBe(500);
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});
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it('sets the version and variant bits on all-zero randomness', () => {
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jest.spyOn(crypto, 'getRandomValues').mockImplementation(
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(buffer) => buffer
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);
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expect(createRandomId()).toBe(
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'00000000-0000-4000-8000-000000000000'
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);
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});
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it('keeps the remaining bits from getRandomValues', () => {
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jest.spyOn(crypto, 'getRandomValues').mockImplementation(
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(buffer) => {
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(buffer as Uint8Array).fill(0xff);
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return buffer;
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}
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);
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expect(createRandomId()).toBe(
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'ffffffff-ffff-4fff-bfff-ffffffffffff'
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);
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});
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});
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});
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