Files
core2026/packages/common/test/imageUpload.test.ts
T

100 lines
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TypeScript

import { createServer, type Server } from 'node:http';
import { once } from 'node:events';
import { describe, expect, it } from 'vitest';
import { ImageWorkBudget, performSignedImageUpload } from '../src/images/imageUpload.js';
const input = {
kind: 'content' as const,
baseUrl: 'https://image.example',
filename: `${'a'.repeat(32)}.png`,
contentType: 'image/png',
body: Buffer.from('test'),
secret: 'synthetic-image-secret',
};
const payload = () => new Response(JSON.stringify({ path: `uploads/core2026/${input.filename}` }));
const listen = async (server: Server) => {
server.listen(0, '127.0.0.1');
await once(server, 'listening');
return `http://127.0.0.1:${(server.address() as { port: number }).port}`;
};
const close = (server: Server) =>
new Promise<void>((resolve) => {
server.closeAllConnections();
server.close(() => resolve());
});
describe('bounded signed image transport', () => {
it('never forwards signed PUT bodies across a real redirect', async () => {
let forwarded = 0;
const target = createServer((_, res) => {
forwarded++;
res.end(JSON.stringify({ path: `uploads/core2026/${input.filename}` }));
});
const targetUrl = await listen(target);
const origin = createServer((_, res) => {
res.writeHead(307, { location: targetUrl });
res.end();
});
const baseUrl = await listen(origin);
try {
await expect(performSignedImageUpload({ ...input, baseUrl })).rejects.toThrow();
expect(forwarded).toBe(0);
} finally {
await close(origin);
await close(target);
}
});
it('bounds streamed bytes independently of Content-Length', async () => {
const body = new ReadableStream<Uint8Array>({
start(controller) {
controller.enqueue(new Uint8Array(10_000));
controller.enqueue(new Uint8Array(10_000));
},
});
await expect(performSignedImageUpload(input, async () => new Response(body))).rejects.toThrow('size limit');
});
it('rejects wrong and malformed JSON paths', async () => {
for (const body of ['{', JSON.stringify({ path: 'elsewhere' })]) {
await expect(performSignedImageUpload(input, async () => new Response(body))).rejects.toThrow();
}
});
it('keeps timed-out non-cooperative work admitted until it actually settles', async () => {
const budget = new ImageWorkBudget(1);
let resolve!: (response: Response) => void;
const fetchImpl: typeof fetch = () =>
new Promise<Response>((done) => {
resolve = done;
});
await expect(performSignedImageUpload(input, fetchImpl, Date.now, { timeoutMs: 25, budget })).rejects.toThrow(
'timed out'
);
await expect(performSignedImageUpload(input, async () => payload(), Date.now, { budget })).rejects.toThrow(
'busy'
);
resolve(payload());
await new Promise<void>((done) => setImmediate(done));
await expect(
performSignedImageUpload(input, async () => payload(), Date.now, { budget })
).resolves.toBeUndefined();
});
it.each(['headers', 'body'])(
'aborts a real stalled %s response within the whole request deadline',
async (phase) => {
const server = createServer((_, res) => {
if (phase === 'body') {
res.writeHead(201);
res.write('{');
}
});
const baseUrl = await listen(server);
try {
await expect(
performSignedImageUpload({ ...input, baseUrl }, fetch, Date.now, { timeoutMs: 100 })
).rejects.toThrow('timed out');
} finally {
await close(server);
}
}
);
});