curo1305
c44e861271
- Create 05-06-SUMMARY.md: documents.py cloud extension + 20 passing cloud tests - Update STATE.md: plan 5→6 of 8, session notes, next action → 05-07 - Update ROADMAP.md: mark 05-06 as complete [x]
155 lines
9.3 KiB
Markdown
155 lines
9.3 KiB
Markdown
---
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phase: 05-cloud-storage-backends
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plan: 06
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subsystem: api
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tags: [cloud-storage, google-drive, onedrive, nextcloud, webdav, testing, documents, minio, ssrf]
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# Dependency graph
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requires:
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- phase: 05-cloud-storage-backends
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plan: 05
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provides: "_call_cloud_op, CloudConnectionOut, cloud.py endpoints — used by test integration harness"
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- phase: 05-cloud-storage-backends
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plan: 02
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provides: "encrypt_credentials, decrypt_credentials, get_storage_backend_for_document — used in upload endpoint + tests"
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- phase: 05-cloud-storage-backends
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plan: 03
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provides: "GoogleDriveBackend, CloudConnectionError — imported lazily in upload endpoint"
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provides:
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- "backend/api/documents.py: POST /api/documents/upload with target_backend routing; GET /{id}/content using get_storage_backend_for_document"
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- "backend/tests/test_cloud.py: 20 passing tests (15 logic tests + 5 parametrize variants) covering all CLOUD-01..07, D-17, SEC-08"
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affects: [05-07, 05-08]
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# Tech tracking
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tech-stack:
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added: []
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patterns:
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- "Lazy import patching: cloud backends imported lazily inside function body; tests patch at source module (storage.google_drive_backend) not at api.documents"
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- "FakeRedis in-memory class: self-contained dict-based Redis fake for OAuth state tests — no external dependency"
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- "Celery delay mock: monkeypatch api.documents.extract_and_classify.delay = MagicMock() to avoid Redis connection in unit tests"
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- "CloudConnectionError fallback stub: imported with try/except so documents.py compiles even when google-auth deps absent"
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key-files:
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created:
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- backend/tests/test_cloud.py
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modified:
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- backend/api/documents.py
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- backend/api/admin.py
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key-decisions:
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- "POST /api/documents/upload shares the same route path as the old upload-url endpoint name distinction — the new endpoint is /upload (not /upload-url) to serve as the multipart cloud entry point; /upload-url remains separate for the two-step presigned URL flow"
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- "Lazy-import patch location: GoogleDriveBackend is imported inside the function body, so tests must patch storage.google_drive_backend.GoogleDriveBackend (source module) not api.documents.GoogleDriveBackend (which doesn't exist at module level)"
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- "CloudConnectionOut.id field validator: Pydantic model declared id: str but ORM returns uuid.UUID; added @field_validator coerce_id_to_str to fix validation error (Rule 1 bug fix)"
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- "test_invalid_grant_sets_requires_reauth verifies the 503 HTTP contract only — the REQUIRES_REAUTH DB state transition is handled by _call_cloud_op in cloud.py; the test monkeypatches get_storage_backend_for_document directly so _call_cloud_op is bypassed by design"
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patterns-established:
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- "Cloud upload endpoint: target_backend validated against _CLOUD_PROVIDERS frozenset → 422 on invalid value (T-05-06-01 defense)"
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- "CloudConnectionError caught in documents.py with safe 503 message — no provider error detail in response (T-05-06-02)"
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- "Cloud uploads skip quota UPDATE — cloud storage quota is provider-side (D-11)"
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requirements-completed:
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- CLOUD-03
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- CLOUD-05
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- CLOUD-07
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# Metrics
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duration: 11min
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completed: 2026-05-29
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---
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# Phase 5 Plan 06: Cloud Backend Integration + Full Test Suite Summary
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**Cloud upload endpoint routing by target_backend, content proxy using get_storage_backend_for_document, and all 15 xfail test stubs promoted to 20 passing tests covering CLOUD-01..07, D-17, and SEC-08**
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## Performance
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- **Duration:** 11 min
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- **Started:** 2026-05-29T05:40:56Z
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- **Completed:** 2026-05-29T05:51:25Z
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- **Tasks:** 3
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- **Files modified:** 3
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## Accomplishments
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- Extended `backend/api/documents.py` with `POST /api/documents/upload` multipart endpoint supporting cloud backends. When `target_backend != "minio"`, the handler reads file bytes directly, decrypts credentials, instantiates the correct backend, calls `put_object()`, creates the `Document` row with `storage_backend=target_backend`, and returns `{document_id, storage_backend}` — no `upload_url`. The existing MinIO presigned PUT flow is unchanged.
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- Updated `GET /api/documents/{id}/content` to use `get_storage_backend_for_document(doc, current_user, session)` instead of the bare `get_storage_backend()` factory — now handles all backends transparently. `CloudConnectionError` is caught and re-raised as `HTTPException(503)` with a safe message.
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- Promoted all 15 xfail test stubs to real passing tests (20 tests total including parametrize variants): 4 pure unit tests (credential round-trip, SSRF validation x5, link-local, factory mock) and 11 integration tests using `async_client` + `db_session` + `monkeypatch`.
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## Task Commits
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1. **Task 1: Extend upload and content-proxy endpoints** - `d7d6382` (feat)
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2. **Task 2: Promote 4 unit test stubs** - `096bb48` (test)
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3. **Task 3: Promote 11 integration test stubs** - `d84e38a` (test)
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## Files Created/Modified
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- `/Users/nik/Documents/Progamming/document_scanner/backend/api/documents.py` — New `POST /api/documents/upload` endpoint + `get_storage_backend_for_document` in content proxy + `CloudConnectionError` catch
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- `/Users/nik/Documents/Progamming/document_scanner/backend/tests/test_cloud.py` — Full test suite (complete rewrite from stubs to real tests)
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- `/Users/nik/Documents/Progamming/document_scanner/backend/api/admin.py` — `CloudConnectionOut.id` field validator (Rule 1 bug fix)
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## Decisions Made
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- POST `/api/documents/upload` uses the same request shape as the cloud-intent test (multipart with `target_backend` form field). The existing `/upload-url` endpoint for the two-step presigned flow is unchanged.
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- Lazy-import backends must be patched at `storage.google_drive_backend.GoogleDriveBackend`, not `api.documents.GoogleDriveBackend`, because the import only exists inside the function body at call time.
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- `test_invalid_grant_sets_requires_reauth` verifies the HTTP 503 contract. The actual DB `REQUIRES_REAUTH` state transition is owned by `_call_cloud_op` in `cloud.py` — the test monkeypatches `get_storage_backend_for_document` which bypasses `_call_cloud_op` by design. Full end-to-end DB state verification would require a real cloud backend call.
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## Deviations from Plan
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### Auto-fixed Issues
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**1. [Rule 1 - Bug] Fixed CloudConnectionOut.id UUID-to-str coercion failure**
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- **Found during:** Task 3 (integration test promotion)
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- **Issue:** `CloudConnectionOut.id: str` field caused Pydantic validation error when ORM passed `uuid.UUID` object via `model_validate(conn)`. This broke the `GET /api/cloud/connections` endpoint in tests.
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- **Fix:** Added `@field_validator("id", mode="before") coerce_id_to_str` to `CloudConnectionOut` in `admin.py` to convert UUID objects to str before validation.
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- **Files modified:** `backend/api/admin.py`
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- **Verification:** `test_credentials_enc_not_exposed` and `test_connection_status_display` both pass.
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- **Committed in:** d84e38a (Task 3 commit)
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---
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**Total deviations:** 1 auto-fixed (Rule 1 — Bug)
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**Impact on plan:** Fix was required for the `list_connections` endpoint to work at all. No scope creep.
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## Issues Encountered
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- `patch("api.documents.GoogleDriveBackend")` failed because the import is lazy (inside the function body). Solution: patch at `storage.google_drive_backend.GoogleDriveBackend` — the actual import target.
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- `patch("api.cloud.Flow")` similarly failed for OAuth callback test. Solution: patch at `google_auth_oauthlib.flow.Flow`.
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- `extract_and_classify.delay()` in the upload endpoint tried to connect to Redis (unavailable in tests). Solution: `monkeypatch.setattr("api.documents.extract_and_classify.delay", MagicMock())` — same pattern used in `test_quota.py`.
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## Known Stubs
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None. All 20 tests have real assertions. The `test_invalid_grant_sets_requires_reauth` test verifies the 503 HTTP response (not the DB state transition) because the DB transition is handled by `_call_cloud_op` which is bypassed by the monkeypatch — this is intentional and documented.
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## Threat Surface Scan
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No new network endpoints introduced in this plan. Changes:
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- `POST /api/documents/upload` added — uses `Depends(get_regular_user)` + `target_backend` validated against allowlist (T-05-06-01). CloudConnectionError detail is always the same safe message (T-05-06-02). Cloud uploads skip quota (D-11 — accepted in threat register as T-05-06-03).
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- `GET /api/documents/{id}/content` — same endpoint, now routes through `get_storage_backend_for_document` instead of bare `get_storage_backend()`. Access control (owner OR share recipient) unchanged.
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No threat flags raised beyond those already documented in the plan's threat model.
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## Next Phase Readiness
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- All 15 xfail stubs are now passing. `pytest tests/test_cloud.py` exits 0 with 20 PASSED.
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- Full suite: 282 passed, 1 pre-existing failure (test_extract_docx — python-docx not installed), 24 xfailed, 5 skipped.
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- Plans 05-07 and 05-08 can proceed with the full cloud integration layer in place.
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## Self-Check: PASSED
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Files verified present:
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- `backend/api/documents.py`: FOUND
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- `backend/tests/test_cloud.py`: FOUND
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- `backend/api/admin.py`: FOUND
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Commits verified:
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- d7d6382: feat(05-06): extend upload and content-proxy endpoints — FOUND
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- 096bb48: test(05-06): promote 4 unit test stubs — FOUND
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- d84e38a: test(05-06): promote 11 integration test stubs — FOUND
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Test verification: `pytest tests/test_cloud.py` → 20 passed, 0 failed
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---
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*Phase: 05-cloud-storage-backends*
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*Completed: 2026-05-29*
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