1f1a7d5a59
The on-chain Submit tx anchors sha256(canonicalize(receipt)) so the
receipt's signature is provably tied to a specific Cardano block — but
without persisting the receipt content + the actual response bytes
nowhere can buyer or supplier produce the artefacts a dispute would
need to argue about. This commit closes that gap on the buyer side.
What's new
- buyer/src/db/schema.ts (new):
`responses` table keyed by escrow_ref, indexes on completed_at /
capability_id / supplier_pkh. Stores metadata + receipt JSON +
Ed25519 signature; large blobs (request envelope, response bytes)
live on disk per-escrow.
- buyer/src/db/archive.ts (new):
ResponseArchive class — persistChat / persistTts / list / get /
readRequest / readResponse. Filesystem layout under ARCHIVE_DIR:
<txhash>_<index>/request.json (always JSON)
<txhash>_<index>/response.{ext} (txt/json for chat, mp3/wav/… for TTS)
Synchronous (better-sqlite3 + fs.writeFileSync) — volume is low and
the simplicity is worth more than async overhead.
- buyer/src/server.ts:
- AppDeps.archive plumbed through createApp.
- /v1/submit-prompt + /v1/submit-tts persist BEFORE returning to
the SPA, using canonicalize() for chat (same bytes the supplier
hashed; JSON.stringify produced different bytes → wrong sha256).
Persist failures are logged but never abort the response — the
on-chain receipt is still authoritative.
- New read-only endpoints:
GET /v1/responses?limit=… list metadata + parsed receipts
GET /v1/responses/:ref single-row detail
GET /v1/responses/:ref/request request artefact (application/json)
GET /v1/responses/:ref/response response artefact (verbatim bytes)
- URL path uses "<txhash>_<index>" (the dir-safe form) since "#"
can't appear unencoded in URLs (fragment delimiter); server
normalises back to canonical "<txhash>#<index>" for SQLite lookup.
- 503 service_unavailable on /v1/responses* when boot has no
archive (ARCHIVE_DIR unset or DB unopenable) — the rest of
the buyer-app still works.
- buyer/src/ui/pages/TaskHistory.tsx:
Joins indexer escrows (chain state) + /v1/responses (archived
artefacts) by escrow_ref. Each completed lifecycle gets an
archive panel showing:
- Request panel (above, chronological order): human-readable
summary — first user message for chat, `text + voice + format +
speed` for TTS, raw JSON fallback otherwise.
- Response panel: assistant text inline for chat, <audio controls>
for TTS; Download response / Download request anchors.
- "Verify hash" button — fetches the response bytes, computes
sha256 via crypto.subtle, compares to receipt.response_hash;
green ✓ on match, red ✗ with truncated computed/expected on
mismatch.
- Collapsible "Receipt + signature" with the full canonical
receipt JSON + the supplier's Ed25519 hex sig.
- buyer/src/config.ts: + ARCHIVE_DIR env (default "./data/archive").
- buyer/Dockerfile: builder gains python3/make/g++ + the
better-sqlite3 native-binding fetch step (mirrors indexer/Dockerfile);
runtime image stays toolchain-free.
- deploy/testnet/docker-compose.buyer.yml: bind-mounts
../../data/buyer/archive (repo-root-relative, not file-relative)
into /data/archive. ARCHIVE_DIR env points at that path.
Tests
- tests/unit/buyer-archive.test.ts (new, 14 tests): persistChat /
persistTts unit coverage (filesystem layout, INSERT-OR-REPLACE
semantics, content-type → extension mapping for mp3/wav/opus/aac/
flac, list ordering + limit, single-row get/read miss-vs-hit) +
HTTP integration (503 when disabled, happy paths returning
metadata / request / response artefact bytes with correct
content-types, 404 on unknown ref).
- tests/unit/buyer-ui-smoke.test.tsx: TaskHistory fetch mock now
also handles /v1/responses (returns empty list — same code path as
"archive disabled" production case).
45 buyer tests passing; chat + TTS lifecycle verified end-to-end on
Vector testnet; "Verify hash" button confirms sha256(response bytes)
matches receipt.response_hash for both capabilities.
40 lines
1.1 KiB
JSON
40 lines
1.1 KiB
JSON
{
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"name": "@marketplace/buyer",
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"version": "0.0.0",
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"private": true,
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"type": "module",
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"scripts": {
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"typecheck": "tsc --noEmit",
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"build:ui": "vite build --config vite.config.ts",
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"dev:ui": "vite --config vite.config.ts",
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"start": "node --enable-source-maps dist/index.js",
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"tx:accept": "tsx src/cli/accept.ts"
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},
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"dependencies": {
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"@marketplace/shared": "workspace:*",
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"@noble/ed25519": "^2.3.0",
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"@noble/hashes": "^1.8.0",
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"bech32": "^2.0.0",
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"better-sqlite3": "^11.9.1",
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"express": "^4.21.2",
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"react": "^18.3.1",
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"react-dom": "^18.3.1",
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"react-router-dom": "^6.26.0"
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},
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"devDependencies": {
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"@testing-library/jest-dom": "^6.4.0",
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"@testing-library/react": "^16.0.0",
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"@testing-library/user-event": "^14.5.2",
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"@types/better-sqlite3": "^7.6.12",
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"@types/express": "^5.0.3",
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"@types/react": "^18.3.0",
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"@types/react-dom": "^18.3.0",
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"@vitejs/plugin-react": "^4.3.0",
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"happy-dom": "^15.7.4",
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"supertest": "^7.0.0",
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"tailwindcss": "^3.4.0",
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"typescript": "^5.7.2",
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"vite": "^5.4.0"
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}
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}
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