feat: link official news to Ubisoft

src/routes/images/news/[id]/server.test.ts

@@ -0,0 +1,54 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+
+const mocks = vi.hoisted(() => ({
+  get: vi.fn(),
+  fetchThumbnail: vi.fn(),
+}));
+
+vi.mock('$lib/server/database', () => ({
+  getDatabase: vi.fn(async () => ({
+    prepare: vi.fn(async () => ({ get: mocks.get })),
+  })),
+}));
+
+vi.mock('$lib/server/ubisoft-news-client', () => ({
+  fetchUbisoftNewsThumbnail: mocks.fetchThumbnail,
+}));
+
+import { GET } from './+server';
+
+const articleId = '9890c398-0522-4e8c-8fdb-78de9c66deb6';
+const sourceUrl = 'https://staticctf.ubisoft.com/news/cover.jpg';
+
+describe('Ubisoft News image proxy', () => {
+  beforeEach(() => {
+    mocks.get.mockReset().mockResolvedValue({ thumbnail_url: sourceUrl });
+    mocks.fetchThumbnail.mockReset().mockResolvedValue({
+      body: new Uint8Array([1, 2, 3]),
+      contentType: 'image/jpeg',
+    });
+  });
+
+  it('serves a same-origin cached image and honors its ETag', async () => {
+    const first = await GET({
+      params: { id: articleId },
+      request: new Request(`http://localhost/images/news/${articleId}`),
+    } as never);
+    expect(first.status).toBe(200);
+    expect(first.headers.get('content-type')).toBe('image/jpeg');
+    expect(first.headers.get('cross-origin-resource-policy')).toBe(
+      'same-origin',
+    );
+    const etag = first.headers.get('etag');
+    expect(etag).toBeTruthy();
+
+    const second = await GET({
+      params: { id: articleId },
+      request: new Request(`http://localhost/images/news/${articleId}`, {
+        headers: { 'if-none-match': String(etag) },
+      }),
+    } as never);
+    expect(second.status).toBe(304);
+    expect(mocks.fetchThumbnail).toHaveBeenCalledTimes(1);
+  });
+});