fix(KAN-65): normalize Hetzner conditional write ETags

native/tests/publish-macos.test.js

@@ -5,9 +5,68 @@ import { mkdtempSync, readFileSync, rmSync, writeFileSync } from 'node:fs';
 import { tmpdir } from 'node:os';
 import { join } from 'node:path';
 import test from 'node:test';
-import { publishMacos, storageConfiguration } from '../publish-macos.mjs';
+import {
+    conditionalEtag,
+    publishMacos,
+    resumeMacos,
+    storageConfiguration,
+} from '../publish-macos.mjs';
 import { signedFixture } from './updater-fixture.mjs';
 
+test('conditional writes use bare S3 ETags without weakening the condition', () => {
+    const etag = 'b88312b96169f4b2098a4cc43b0abb6a';
+    for (const value of [etag, `"${etag}"`, `${etag}-2`, `"${etag}-2"`]) {
+        assert.equal(conditionalEtag(value), value.replaceAll('"', ''));
+    }
+    for (const invalid of [
+        undefined,
+        null,
+        '',
+        '*',
+        '"*"',
+        `W/"${etag}"`,
+        `"${etag}`,
+        `${etag}"`,
+        `${etag},${etag}`,
+        `${etag}\r\n`,
+        {},
+        42,
+    ]) {
+        assert.throws(() => conditionalEtag(invalid), /valid S3 ETag/);
+    }
+});
+
+test('resume verifies already published artifacts and promotes the feed without rebuilding', async (t) => {
+    const f = fixture(t);
+    await publishMacos(f);
+    const key = `releases/macos/${f.metadata.target}/latest.json`;
+    f.objects.set(key, Buffer.from(JSON.stringify({ version: '1.0.0' })));
+    const originals = new Map(f.objects);
+    await resumeMacos(f);
+    assert.equal(JSON.parse(f.objects.get(key)).version, f.metadata.version);
+    for (const [name, contents] of originals) {
+        if (name !== key) {
+            assert.deepEqual(f.objects.get(name), contents);
+        }
+    }
+});
+
+for (const failure of ['missing', 'tampered']) {
+    test(`resume rejects ${failure} artifacts before any S3 writes`, async (t) => {
+        const f = fixture(t);
+        await publishMacos(f);
+        const key = `releases/macos/${f.metadata.target}/${f.metadata.version}/${f.metadata.updaterFilename}`;
+        if (failure === 'missing') {
+            f.objects.delete(key);
+        } else {
+            f.objects.set(key, Buffer.from('tampered'));
+        }
+        f.events.length = 0;
+        await assert.rejects(resumeMacos(f), /incomplete release|signature/);
+        assert(!f.events.some((event) => event.operation === 'put-object'));
+    });
+}
+
 function fixture(
     t,
     conflictMessage = 'aws failed: (PreconditionFailed) object exists',
@@ -65,14 +124,19 @@ function fixture(
                 if (!args.includes('--if-match')) {
                     throw new Error(conflictMessage);
                 }
-                assert.equal(value('--if-match'), '"previous-etag"');
+                assert.equal(
+                    value('--if-match'),
+                    'b88312b96169f4b2098a4cc43b0abb6a',
+                );
             }
             objects.set(key, readFileSync(value('--body')));
             return '{}';
         }
         if (operation === 'get-object') {
             writeFileSync(args.at(-1), objects.get(key));
-            return JSON.stringify({ ETag: '"previous-etag"' });
+            return JSON.stringify({
+                ETag: '"b88312b96169f4b2098a4cc43b0abb6a"',
+            });
         }
         throw new Error(`Unexpected S3 operation: ${operation}`);
     };