feat(gateway): api-keys management endpoints with one-time plaintext (Stage 1 PR4)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

backend/tests/test_api_keys_router.py

@@ -0,0 +1,125 @@
+"""api-keys router tests (Stage 1 PR4).
+
+plaintext is returned exactly once at create time; never on list.
+"""
+
+from __future__ import annotations
+
+import pytest
+from starlette.testclient import TestClient
+
+pytestmark = pytest.mark.anyio
+
+
+@pytest.fixture
+def anyio_backend() -> str:
+    return "asyncio"
+
+
+async def _init_db_with_sa(tmp_path, *, sa_id="sa-1", workspace_id="w-1"):
+    from deerflow.persistence.engine import get_session_factory, init_engine
+    from deerflow.persistence.service_account.model import ServiceAccountRow
+    from deerflow.persistence.user.model import UserRow
+    from deerflow.persistence.workspace.model import WorkspaceRow
+
+    url = f"sqlite+aiosqlite:///{tmp_path / 'test.db'}"
+    await init_engine("sqlite", url=url, sqlite_dir=str(tmp_path))
+    sf = get_session_factory()
+    async with sf() as session:
+        session.add(UserRow(id="u-alice", email="alice@example.com"))
+        await session.commit()
+    async with sf() as session:
+        session.add(WorkspaceRow(id=workspace_id, name="WS", slug=f"ws-{workspace_id}", owner_id="u-alice"))
+        await session.commit()
+    async with sf() as session:
+        session.add(ServiceAccountRow(id=sa_id, workspace_id=workspace_id, name="bot", role="member", identity_mode="collapsed", status="active", created_by="u-alice"))
+        await session.commit()
+
+
+async def _cleanup():
+    from deerflow.persistence.engine import close_engine
+
+    await close_engine()
+
+
+def _make_app(*, role="owner", workspace_id="w-1"):
+    from fastapi import FastAPI, Request
+    from starlette.middleware.base import BaseHTTPMiddleware
+
+    from app.gateway.authz import _ALL_PERMISSIONS, AuthContext
+    from app.gateway.routers import api_keys
+    from deerflow.runtime.user_context import reset_current_user, set_current_user
+    from deerflow.runtime.workspace_context import reset_current_workspace, set_current_workspace
+
+    class _Stamp(BaseHTTPMiddleware):
+        async def dispatch(self, request: Request, call_next):
+            user = type("U", (), {"id": "u-alice", "is_service_account": False})()
+            ws = type("W", (), {"id": workspace_id, "role": role})()
+            request.state.user = user
+            request.state.auth = AuthContext(user=user, permissions=_ALL_PERMISSIONS)
+            ut = set_current_user(user)
+            wt = set_current_workspace(ws)
+            try:
+                return await call_next(request)
+            finally:
+                reset_current_workspace(wt)
+                reset_current_user(ut)
+
+    app = FastAPI()
+    app.add_middleware(_Stamp)
+    app.include_router(api_keys.router)
+    return app
+
+
+async def test_create_returns_plaintext_once(tmp_path):
+    await _init_db_with_sa(tmp_path)
+    try:
+        client = TestClient(_make_app())
+        r = client.post("/api/v1/api-keys", json={"service_account_id": "sa-1", "name": "ci", "scopes": "threads:read"})
+        assert r.status_code == 201, r.text
+        body = r.json()
+        assert body["plaintext"].startswith("dfk_live_")
+        assert body["key_prefix"] == body["plaintext"][:16]
+
+        lst = client.get("/api/v1/api-keys", params={"service_account_id": "sa-1"})
+        assert lst.status_code == 200
+        rows = lst.json()
+        assert len(rows) == 1
+        assert "plaintext" not in rows[0]
+        assert "key_hash" not in rows[0]
+    finally:
+        await _cleanup()
+
+
+async def test_create_for_other_workspace_sa_404(tmp_path):
+    await _init_db_with_sa(tmp_path, sa_id="sa-1", workspace_id="w-1")
+    try:
+        # Caller is in w-2 but targets sa-1 which lives in w-1 → 404.
+        client = TestClient(_make_app(workspace_id="w-2"))
+        r = client.post("/api/v1/api-keys", json={"service_account_id": "sa-1", "name": "x", "scopes": ""})
+        assert r.status_code == 404
+    finally:
+        await _cleanup()
+
+
+async def test_revoke_key(tmp_path):
+    await _init_db_with_sa(tmp_path)
+    try:
+        client = TestClient(_make_app())
+        created = client.post("/api/v1/api-keys", json={"service_account_id": "sa-1", "name": "k", "scopes": ""}).json()
+        r = client.delete(f"/api/v1/api-keys/{created['id']}")
+        assert r.status_code == 204
+        rows = client.get("/api/v1/api-keys", params={"service_account_id": "sa-1"}).json()
+        assert rows[0]["revoked_at"] is not None
+    finally:
+        await _cleanup()
+
+
+async def test_member_cannot_create_key(tmp_path):
+    await _init_db_with_sa(tmp_path)
+    try:
+        client = TestClient(_make_app(role="member"))
+        r = client.post("/api/v1/api-keys", json={"service_account_id": "sa-1", "name": "x", "scopes": ""})
+        assert r.status_code == 403
+    finally:
+        await _cleanup()