agnes-the-ai-analyst/docs/local-development.md
ZdenekSrotyr 5f6bb7a4b2
fix(security+ops) + release(0.12.1): #82 #85 #87 hardening + cut 0.12.1 (#104)
* fix(security+ops): #82 #85 #87 — auth hardening, API validation, deploy posture

Security and operational hardening across three issue groups:

- M23: docker-compose.override.yml → docker-compose.dev.yml (BREAKING, prod foot-gun)
- C13: Container runs as non-root user 'agnes' (USER directive in Dockerfile)
- M21: Docker resource limits (mem_limit, cpus) on app + scheduler
- M22: Caddyfile security headers (X-Frame-Options, X-Content-Type-Options, Referrer-Policy, -Server)
- M17: /api/health split into minimal (unauth) + /api/health/detailed (auth) (BREAKING)
- M26: release.yml restricts build-and-push to main + workflow_dispatch; paths-ignore for docs

- C2: table_id traversal validation on /api/data/{table_id}/download
- M4: Upload streaming (chunk-read + temp file) instead of full-buffer; /local-md hashed filename

- C5: reset_token removed from POST /api/users/{id}/reset-password response
- C8: Startup WARNING when no user has password_hash (bootstrap window visible)
- M9: Audit log on failed web form login (mirrors /auth/token endpoint)
- M10: Atomic magic-link consume via compare-and-swap (CONSUMED: marker + DuckDB conflict catch)

Also: SSRF protection on /api/admin/configure (#46), memory stats SQL aggregation (#90)

Generated with [Devin](https://cli.devin.ai/docs)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* fix(review): SSRF 169.254.x.x + IPv6 multicast; M10 marker cleanup safety

Review fixes:
- Add 169.254.0.0/16 (link-local, cloud metadata) to SSRF regex — was
  missing, allowing requests to AWS/GCP/Azure metadata endpoints
- Add ff[0-9a-f]{2}: (IPv6 multicast) to SSRF regex
- M10: wrap Step 3 (CONSUMED marker cleanup) in try-except with
  warning log — prevents unhandled exception if DB write fails after
  successful token consumption
- Add test for 169.254.169.254 SSRF rejection

Generated with [Devin](https://cli.devin.ai/docs)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* fix(review): SSRF IPv6 bypass, CLI health endpoint, upload FD leak

Address Devin Review findings on PR #104:

1. SSRF IPv6 bypass: Replace hostname regex with DNS resolution +
   ipaddress module checks. The old regex patterns like `fe80:` only
   matched up to the first colon, missing real IPv6 addresses like
   `fe80::1`, `fc00::1`, `ff02::1`. The new approach resolves the
   hostname via getaddrinfo and checks each resulting IP against
   ipaddress.is_private/is_loopback/is_link_local/is_reserved/is_multicast.

2. CLI commands broken: `da setup test-connection`, `da setup verify`,
   `da diagnose`, `da status` all called /api/health expecting the old
   format (status=="healthy", services dict). Now they call
   /api/health/detailed for service-level checks (with graceful fallback
   to the minimal endpoint when auth is not configured).

3. Temp file handle leak: _stream_to_temp returns an open
   NamedTemporaryFile; callers now close it before shutil.move() to
   prevent FD leaks until GC.

Also adds IPv6 SSRF test cases (loopback, link-local, unique-local,
multicast) with mocked DNS resolution for test environment independence.

Generated with [Devin](https://cli.devin.ai/docs)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* fix(review): download regex blocks hyphenated IDs; document health split

Address Devin Review round-3 findings on PR #104:

1. _SAFE_IDENTIFIER regex blocked hyphenated table IDs: The download
   endpoint used the strict SQL-identifier regex which does not allow
   dots or hyphens, but Keboola table IDs like in.c-crm.orders
   contain both. Switched to _SAFE_QUOTED_IDENTIFIER which allows dots
   and hyphens while still blocking path-traversal chars (/, .., \)
   and quote/control characters. Added test for hyphenated/dotted IDs.

2. Documented health endpoint split in DEPLOYMENT.md: Added Health
   checks & external monitoring section explaining both endpoints
   (minimal unauth /api/health vs authenticated /api/health/detailed)
   and how to wire external monitoring tools to the detailed endpoint
   with a PAT.

Generated with [Devin](https://cli.devin.ai/docs)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

* release(0.12.1): cut hotfix for snapshot integrity + #82/#85/#87 hardening

* fix(security): apply CAS pattern to password reset confirm (#82/M10 follow-up)

Devin review on the rebased PR flagged the asymmetry: magic-link verify
got the atomic compare-and-swap pattern in the original M10 fix, but
password reset confirm at /auth/password/reset/confirm was still using
read-validate-clear. Two concurrent POSTs with the same valid reset
token could both succeed in setting different new passwords (last-write-
wins). Lower severity than the magic-link race because the attacker
would need the reset token AND to race the legitimate user, but the
asymmetry was a polish gap.

Mirrors app/auth/providers/email.py::_consume_token CAS exactly: write
unique CONSUMED:<random> marker via UPDATE...WHERE token=old_token, then
SELECT to verify our marker won, then proceed. Only the winner clears
the marker and applies the password change.

New regression test_concurrent_reset_only_one_wins in
tests/test_password_flows.py::TestResetConfirm pins the contract: two
ThreadPoolExecutor workers + Barrier hit /reset/confirm with the same
token; exactly one gets 302 (password applied), the other gets 200 with
'Invalid or expired'. Sanity-checked against the pre-CAS code — both
POSTs got 302 (race confirmed).

---------

Co-authored-by: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
2026-04-28 19:57:30 +02:00

106 lines
7.1 KiB
Markdown

# Local Development
Single source of truth for working on Agnes against `localhost`. Covers the dev-mode auth bypass, mocked Google Workspace groups, what isn't mocked, and the safety rails that keep the dev shortcuts off production.
## TL;DR
```bash
make local-dev
```
Then open <http://localhost:8000>. You land on `/dashboard` already logged in as `dev@localhost` (role `admin`) and your `/profile` shows two mocked Workspace groups. No login screen, no `.env` file, no SMTP, no GCP project — just code.
What `make local-dev` actually does:
- Stacks three Compose files: `docker-compose.yml` (base) + `docker-compose.dev.yml` (hot-reload + source bind mount) + `docker-compose.local-dev.yml` (LOCAL_DEV_MODE overlay).
- Seeds `LOCAL_DEV_GROUPS` with a sensible default (engineers + admins on `example.com`) so `/profile` is non-empty on first boot.
- Touches an empty `.env` if missing — Compose validates `env_file:` paths even for services that never start, and the local-dev overlay drops the env-file requirement for the services that do.
`make local-dev-down` stops the stack; `make local-dev-logs` tails it.
## What `LOCAL_DEV_MODE=1` actually bypasses
The local-dev overlay sets `LOCAL_DEV_MODE=1`, which flips four switches:
1. **Auth bypass.** `app/auth/dependencies.py::get_current_user` short-circuits to a seeded admin user (`dev@localhost` by default; override via `LOCAL_DEV_USER_EMAIL`) before any token check runs. Every protected route — REST and HTML — auto-authenticates.
2. **Magic-link emails skip SMTP.** When the email-link auth provider is exercised in dev, the link is logged to stderr and returned in the response body instead of sent over wire. No mail server, no inbox.
3. **Secrets self-seed.** `JWT_SECRET_KEY` and `SESSION_SECRET` auto-generate into `/data/state/` on first boot if not provided. You don't need to manage them manually.
4. **No `.env` requirement.** The overlay declares `env_file: []` on the affected services, so the project-level `.env` doesn't need to exist. Everything dev-relevant is inline in `docker-compose.local-dev.yml`.
A loud warning banner is logged at startup when `LOCAL_DEV_MODE=1`:
```
============================================================
LOCAL_DEV_MODE is ON — authentication is bypassed.
All requests auto-authenticate as: dev@localhost
LOCAL_DEV_GROUPS: mocking 2 group(s) into session: local-dev-engineers@example.com, local-dev-admins@example.com
NEVER enable this in a deployment reachable from the internet.
============================================================
```
If you don't see that banner at boot, dev mode isn't on — check `LOCAL_DEV_MODE=1` made it into the container's env.
## Mocking Google Workspace groups
`/profile` and any future group-aware code path read `session.google_groups`. In production that field gets populated by the OAuth callback (`app/auth/providers/google.py`) from a Cloud Identity `searchTransitiveGroups` call. In dev there's no OAuth round-trip, so the field stays empty unless we mock it.
`LOCAL_DEV_GROUPS` is a JSON array of objects matching the production shape:
```bash
export LOCAL_DEV_GROUPS='[{"id":"engineers@example.com","name":"Engineering"},{"id":"admins@example.com","name":"Admins"}]'
```
The values flow into `session.google_groups` on every dev-bypass request, so group-aware code sees something realistic. Same `{id, name}` shape the OAuth callback writes.
### How `make local-dev` seeds it
`scripts/run-local-dev.sh` sets a default if you haven't already (engineers + admins on `example.com`), so first-boot is non-empty. Three ways to control it:
```bash
make local-dev # default mock — engineers + admins
LOCAL_DEV_GROUPS='[{"id":"qa@x.com","name":"QA"}]' make local-dev # custom mock
LOCAL_DEV_GROUPS= make local-dev # empty — exercise the no-groups path
```
### Verifying the mock
Two checks:
1. **Boot banner** logs the parsed group IDs (or warns loudly if the JSON is malformed):
```
LOCAL_DEV_GROUPS: mocking 2 group(s) into session: local-dev-engineers@example.com, local-dev-admins@example.com
```
A typo (e.g. unbalanced bracket) shows up here — not silently on the first authenticated request.
2. **`/profile`** renders the mocked groups in a list. If you set `LOCAL_DEV_GROUPS=` (empty), you'll see *"No Google groups available"*.
### Edge case: clearing stale groups mid-session
If you previously had `LOCAL_DEV_GROUPS` set, then unset it and made a request, the dev-bypass path now writes `[]` into the session — same semantics as the production OAuth callback, which always rewrites `session.google_groups` on each login. You won't get stuck looking at stale mocked groups after toggling the env var.
## What's NOT mocked
`LOCAL_DEV_MODE` is intentionally narrow. These still need real configuration if you exercise them:
- **Cloud Identity API.** No real call ever fires in dev. `LOCAL_DEV_GROUPS` populates `session.google_groups` directly without going through `_fetch_google_groups`. To debug the actual API call, use `scripts/debug/probe_google_groups.py` against a real OAuth token.
- **Real OAuth round-trip.** Google login button is hidden / no-op in dev mode. To test the full OAuth flow, follow `docs/auth-google-oauth.md` and unset `LOCAL_DEV_MODE`.
- **Admin Workspace permissions.** The mocked groups are not authoritative — they live only in your browser session. They don't grant any real access to anything outside Agnes; they let you exercise group-aware code paths inside the app.
- **PAT (Personal Access Token) flow.** PATs work normally in dev mode; the dev bypass only short-circuits cookie/session auth. Token-bearer requests still hit the JWT validation path.
## Security model
`LOCAL_DEV_MODE=1` is a footgun by design — every protected route auto-authenticates as admin without any check. The codebase has these rails to keep it from leaking into prod:
- **`docker-compose.local-dev.yml` is a separate overlay**, never stacked into `docker-compose.prod.yml`. Production deployments never see it.
- **The startup banner is loud and unmissable** — `WARNING` level, repeated 60-character separator. Anyone reading container logs at startup will spot it immediately.
- **`is_local_dev_mode()` reads `os.environ` fresh on every call** — no startup-time cache that could be poisoned.
- **`LOCAL_DEV_GROUPS` is honored only inside the `if is_local_dev_mode():` block** in `get_current_user`. Setting it without `LOCAL_DEV_MODE=1` does nothing.
If you ever see the dev banner in a real deployment's logs, treat it as a P0 incident: the auth boundary is gone.
## Cross-links
- [`docs/auth-groups.md`](auth-groups.md) — production Google Workspace groups: GCP setup checklist, the `security` label gotcha, debugging the real Cloud Identity call.
- [`docs/auth-google-oauth.md`](auth-google-oauth.md) — full Google OAuth setup for non-dev environments (client ID, scopes, redirect URIs).
- [`docs/QUICKSTART.md`](QUICKSTART.md) — first-time setup for a real (non-dev) instance.
- [`CLAUDE.md`](../CLAUDE.md) — repo-wide engineering conventions (changelog discipline, vendor-agnostic OSS rules, project structure).