---
phase: 02-users-authentication
verified: 2026-05-22T18:18:52Z
status: gaps_found
score: 4/5
overrides_applied: 0
re_verification: false
gaps:
  - truth: "Attempting to access document content via an admin JWT returns 403"
    status: partial
    reason: "The documents API (backend/api/documents.py) has no authentication enforcement at all — no get_current_user dependency, no JWT validation. Any request (with or without a JWT) accesses documents. An admin JWT does not receive a 403; it is simply ignored. Admin.py has no document-content endpoints (SEC-07's admin-response clause is met), but the documents API does not reject admin-role tokens or any tokens."
    artifacts:
      - path: "backend/api/documents.py"
        issue: "No auth dependency on any endpoint. get_current_user is not imported or used. This is the pre-Phase-3 single-user API state — per D-03 note in STATE.md, auth enforcement on documents is deferred to Phase 3."
    missing:
      - "Either: add get_current_user + role check to documents.py endpoints NOW to make admin-JWT return 403, OR explicitly scope SC5's 'admin JWT returns 403' clause as a Phase 3 deliverable in ROADMAP.md."
human_verification:
  - test: "TOTP enrollment end-to-end"
    expected: "User scans otpauth:// link in authenticator app, enters 6-digit code, sees 10 backup codes, checks acknowledgment checkbox, enables 2FA, and thereafter login requires TOTP code"
    why_human: "Multi-step UI flow with authenticator app interaction cannot be verified by grep or build"
  - test: "Password reset email delivery"
    expected: "User receives reset email at their address, link expires after 1 hour, following the link and setting a new password returns 200 with 'Please sign in' (no auto-login), user must pass TOTP gate on next login"
    why_human: "Requires SMTP/Celery infrastructure running and actual email receipt"
  - test: "Sign out all devices from account settings"
    expected: "Clicking 'Sign out all devices' in AccountView invalidates all active sessions; other browser tabs/devices lose access on next request"
    why_human: "Multi-session behavior requires multiple live browser sessions"
  - test: "Admin panel tab navigation"
    expected: "Admin user sees shield icon 'Admin' link in sidebar, can navigate Users / Quotas / AI Config tabs, non-admin user does not see the admin link"
    why_human: "UI rendering and role-conditional visibility require browser"
---

# Phase 2: Users & Authentication — Verification Report

**Phase Goal:** Users can register, log in (with optional TOTP 2FA), reset their password, and sign out all active sessions; admins can manage user accounts and assign AI providers — all enforced by a complete FastAPI dependency chain.

**Verified:** 2026-05-22T18:18:52Z
**Status:** GAPS FOUND
**Re-verification:** No — initial verification

---

## Goal Achievement

### Observable Truths (Success Criteria)

| # | Truth | Status | Evidence |
|---|-------|--------|----------|
| SC1 | New user can register with strength-validated password; HIBP-listed password rejected | VERIFIED | `check_hibp()` in services/auth.py uses k-anonymity SHA-1 prefix (5 chars); `_validate_password_strength()` enforces 12+ chars, upper, lower, digit, special; 4 tests covering register success, duplicate email, weak password, HIBP breach all pass |
| SC2 | User can enroll TOTP authenticator, receive 10 backup codes with acknowledgment gate, TOTP required on every subsequent login, backup code invalidated on first use | VERIFIED | `provision_totp()`, `generate_backup_codes(10)`, `store_backup_codes()` in services/auth.py; `BackupCodesDisplay.vue` has acknowledgment checkbox gating "Enable 2FA" button; `verify_backup_code()` iterates all codes (constant-time) and sets `used_at=now()` on match; Redis replay prevention on `totp_used:{user_id}:{code}` TTL=90s |
| SC3 | User can reset password via email link (1-hour token), no auto-login after reset, returns to TOTP gate | VERIFIED | `create_password_reset_token()` / `decode_password_reset_token()` uses `typ="password-reset"` claim; `/password-reset/confirm` explicitly does NOT return access_token (comment: "AUTH-05 — user must pass TOTP gate on next login"); anti-enumeration: `/password-reset` always returns 202; test `test_password_reset_confirm_valid_no_autologin` passes |
| SC4 | User can trigger "sign out all devices"; other sessions immediately invalidated; reuse of rotated refresh token revokes entire family | VERIFIED | `revoke_all_refresh_tokens()` marks all user's tokens revoked; `rotate_refresh_token()` checks `row.revoked=True` → calls `revoke_all_refresh_tokens()` + `send_security_alert_email.delay()` + raises `ValueError("token_family_revoked")`; `logout_all` endpoint (lines 370-379 api/auth.py) calls `revoke_all_refresh_tokens()` |
| SC5 | Admin can create/deactivate/reset user accounts and assign AI provider; **attempting to access document content via admin JWT returns 403** | PARTIAL — BLOCKER | Admin CRUD endpoints verified (7 endpoints, `get_current_admin` on all, `_user_to_dict()` whitelist excludes `password_hash`/`credentials_enc`). BUT: `backend/api/documents.py` has NO auth enforcement at all — any request (with or without JWT) accesses documents. An admin JWT is not rejected; it is simply ignored. The 403 clause of SC5 is not met. |

**Score: 4/5 truths verified**

---

### Gap Detail: SC5 — Admin JWT Document Access

**Status:** PARTIAL / BLOCKER

The documents API (`backend/api/documents.py`) has no `get_current_user` or `get_current_admin` dependency on any endpoint. No JWT is validated. This is the pre-Phase 3 single-user API state, explicitly noted in STATE.md (D-03 decision):

> "documents.user_id nullable Phase 1 — D-03 — no auth in Phase 1; Phase 2 migration adds NOT NULL after auth lands"

However, SEC-07 (Phase 2 requirement) states: "Admin role verified on every admin endpoint request; admin cannot access document content, extracted text, or cloud credentials in any response." The admin API endpoints correctly meet the first clause (all protected by `get_current_admin`) and the second clause (no document content in admin responses via `_user_to_dict()` whitelist). But the documents API itself is fully open — an admin JWT does not return 403 when accessing document content there.

Phase 3's scope (Document Migration & Multi-User Isolation) will add `get_current_user` to document endpoints and enforce `resource.user_id == current_user.id`. Once Phase 3 lands, all users (including admins) will only see their own documents. However, the ROADMAP SC5 specifically says "admin JWT returns 403 for document content" as a Phase 2 deliverable.

**Options for resolution:**
1. Add a narrow role-check guard in documents.py now (e.g., admin role in `get_current_user` → 403) — minimal Phase 2 work
2. Update ROADMAP.md to scope the "admin JWT → 403 on documents" clause to Phase 3 alongside full auth enforcement
3. Accept as-is noting Phase 3 fully resolves it (with ROADMAP update)

---

### Required Artifacts

| Artifact | Expected | Status | Details |
|----------|----------|--------|---------|
| `backend/services/auth.py` | Full auth service layer (Argon2, JWT, refresh, TOTP, backup codes, HIBP) | VERIFIED | 428 lines; 16 exported functions; no FastAPI coupling (single mention of "HTTPException" is in module docstring comment, not import or raise) |
| `backend/deps/auth.py` | `get_current_user` + `get_current_admin` FastAPI dependencies | VERIFIED | Both functions present; `get_current_admin` raises 403 on non-admin role |
| `backend/api/auth.py` | Register, login, refresh, logout, logout-all, me, change-password, TOTP setup/enable/disable, password-reset, password-reset/confirm | VERIFIED | 615 lines; 13 async handlers; all endpoints present |
| `backend/api/admin.py` | 7 admin endpoints with `get_current_admin` on every handler | VERIFIED | 380 lines; 7 handlers; `get_current_admin` count = 10; `_user_to_dict()` whitelist |
| `backend/db/models.py` (BackupCode) | `class BackupCode` with `used_at` nullable field | VERIFIED | `grep -c "class BackupCode"` = 1; `used_at: Mapped[Optional[datetime]]` present |
| `backend/db/models.py` (password_must_change) | `password_must_change` BOOLEAN column on User | VERIFIED | `grep -c "password_must_change"` = 1 |
| `backend/migrations/versions/0002_add_backup_codes_and_password_must_change.py` | Alembic migration for backup_codes table and password_must_change column | VERIFIED | File exists: `ls migrations/versions/ \| grep backup_codes` returns file |
| `frontend/src/stores/auth.js` | Pinia store with `accessToken` in `ref()` memory only — no localStorage | VERIFIED | `grep -c "localStorage"` = 0; `accessToken = ref(null)` confirmed |
| `frontend/src/router/index.js` | `beforeEach` guard with redirect preservation | VERIFIED | `grep -c "beforeEach"` = 1 |
| `frontend/src/views/auth/LoginView.vue` | Three-step login with TOTP + backup code paths | VERIFIED | File exists; contains backup code toggle |
| `frontend/src/views/auth/RegisterView.vue` | Registration with PasswordStrengthBar | VERIFIED | File exists; contains PasswordStrengthBar import |
| `frontend/src/views/AdminView.vue` | Tabbed admin panel | VERIFIED | File exists; imports all three tab components |
| `frontend/src/components/admin/AdminUsersTab.vue` | User CRUD with create/deactivate/reset | VERIFIED | File exists; wired to real API endpoints |
| `frontend/src/components/layout/AppSidebar.vue` | Role-gated admin link | VERIFIED | `grep -c "role.*admin"` = 1; shield-icon admin link with `v-if` |

---

### Key Link Verification

| From | To | Via | Status | Details |
|------|----|-----|--------|---------|
| `api/auth.py` | `services/auth.py` | All auth functions called in handlers | WIRED | `verify_totp()`, `rotate_refresh_token()`, `revoke_all_refresh_tokens()`, `check_hibp()`, etc. |
| `api/auth.py` | `app.state.redis` | `request.app.state.redis` in login + TOTP enable handlers | WIRED | Lines 212, 489 pass redis_client to `verify_totp()` |
| `api/admin.py` | `deps/auth.py:get_current_admin` | `Depends(get_current_admin)` on every handler | WIRED | Count = 10; all 7 handlers + deps chain |
| `api/admin.py` | `main.py` | `app.include_router(admin_router)` | WIRED | Confirmed in main.py |
| `frontend/src/stores/auth.js` | `frontend/src/api/client.js` | Bearer token injection in `request()` | WIRED | `accessToken` used for `Authorization: Bearer` header |
| `frontend/src/router/index.js` | `frontend/src/stores/auth.js` | `beforeEach` guard checks `authStore.accessToken` | WIRED | Guard redirects unauthenticated users to `/login?redirect=` |
| `frontend/src/components/auth/BackupCodesDisplay.vue` | `acknowledged` ref | Gates "Enable 2FA" button | WIRED | `@click="acknowledged && $emit('acknowledged')"` |
| `api/auth.py` | `tasks/email_tasks.py` | Deferred import `from tasks.email_tasks import send_reset_email` inside handler | WIRED | Pattern confirmed; consistent with document_tasks pattern |

---

### Data-Flow Trace (Level 4)

| Artifact | Data Variable | Source | Produces Real Data | Status |
|----------|---------------|--------|-------------------|--------|
| `backend/services/auth.py:verify_totp` | `redis_client.get(replay_key)` | `app.state.redis` (aioredis) | Yes — real Redis TTL-keyed lookup | FLOWING |
| `backend/services/auth.py:verify_backup_code` | `rows` from `select(BackupCode)` | PostgreSQL via SQLAlchemy async | Yes — real DB query with `used_at.is_(None)` filter | FLOWING |
| `backend/api/admin.py:_user_to_dict` | Explicit whitelist dict | User ORM object from DB | Yes — DB-loaded User object, no document fields included | FLOWING |
| `frontend/src/stores/auth.js:accessToken` | `ref(null)` → set on successful login response | `api/client.js` login response | Yes — set from `data.access_token` on successful auth | FLOWING |

---

### Behavioral Spot-Checks

| Behavior | Command | Result | Status |
|----------|---------|--------|--------|
| All Phase 2 auth tests pass | `python3 -m pytest tests/test_task1_models_config.py tests/test_task2_auth_service.py tests/test_auth_deps.py tests/test_auth_api.py tests/test_auth_totp.py tests/test_admin_api.py -q` | 77 passed, 47 warnings in 8.98s | PASS |
| Frontend builds clean | `npm run build` | Built in 576ms; 11 chunks; exit 0 | PASS |
| No localStorage in auth store | `grep -c "localStorage" frontend/src/stores/auth.js` | 0 | PASS |
| httpOnly refresh cookie | `grep -c "httponly\|HttpOnly\|httpOnly" backend/api/auth.py` | 6 | PASS |
| CORS locked to settings | `grep -c "cors_origins" backend/main.py` | 4 | PASS |
| Rate limiting on auth endpoints | `grep -c "@limiter.limit" backend/api/auth.py` | 5 (register, login, refresh, TOTP enable, password-reset) | PASS |
| get_current_admin on every admin handler | `grep -c "get_current_admin" backend/api/admin.py` | 10 | PASS |
| No impersonation in admin.py (code) | `grep -n "impersonat" backend/api/admin.py` shows only comments/docstrings | 0 code references | PASS |
| admin.py never returns password_hash | `_user_to_dict()` whitelist verified | password_hash only at line 186 (constructor write, not response) | PASS |
| Documents API unauthenticated | `grep -n "get_current_user" backend/api/documents.py` | 0 matches — no auth enforcement | FAIL (SC5 gap) |

---

### Probe Execution

No declared probes found. Step 7c: SKIPPED (no probe-*.sh files in scripts/).

---

### Requirements Coverage

| Requirement | Plan | Description | Status | Evidence |
|-------------|------|-------------|--------|---------|
| AUTH-01 | 02-01, 02-02 | Register with Argon2 + HIBP check + strength enforcement | SATISFIED | `hash_password()` uses pwdlib Argon2Hasher; `check_hibp()` k-anonymity; strength in `_validate_password_strength()` |
| AUTH-02 | 02-01, 02-02 | JWT in Pinia memory; refresh in httpOnly SameSite=Strict cookie | SATISFIED | `accessToken = ref(null)` in store; `_set_refresh_cookie()` with httponly=True, samesite="strict" |
| AUTH-03 | 02-03 | TOTP enrollment with 8-10 backup codes acknowledged before activation | SATISFIED | `generate_backup_codes(10)` + `BackupCodesDisplay.vue` acknowledgment checkbox |
| AUTH-04 | 02-02 | Login via TOTP or single-use backup code; backup code invalidated on use | SATISFIED | `verify_totp()` and `verify_backup_code()` paths in login handler; `used_at` set on use |
| AUTH-05 | 02-03 | Password reset via email; no auto-login; returns to TOTP gate | SATISFIED | Confirm endpoint returns 200 + message, no tokens; `revoke_all_refresh_tokens()` called |
| AUTH-06 | 02-03 | Sign out all active sessions | SATISFIED | `logout_all` endpoint calls `revoke_all_refresh_tokens()` |
| AUTH-07 | 02-01 | Refresh token family revocation on reuse + security alert | SATISFIED | `rotate_refresh_token()` detects `row.revoked=True` → revoke all + `send_security_alert_email.delay()` |
| AUTH-08 | 02-01, 02-03 | TOTP single-use within validity window (replay prevention) | SATISFIED | Redis key `totp_used:{user_id}:{code}` TTL=90s in `verify_totp()` |
| SEC-01 | 02-02 | CSRF protection (SameSite=Strict + Origin validation) | SATISFIED | `OriginValidationMiddleware` + SameSite=Strict on refresh cookie |
| SEC-02 | 02-02, 02-03 | Rate limiting on auth endpoints (per-IP + per-account) | SATISFIED | slowapi `@limiter.limit()` decorators + Redis per-account counter `login_attempts:{email}` |
| SEC-03 | 02-01 | Parameterized queries / ORM | SATISFIED | All DB ops use SQLAlchemy ORM; zero raw string interpolation |
| SEC-05 | 02-02 | CSP + X-Frame-Options + X-Content-Type-Options headers | SATISFIED | `SecurityHeadersMiddleware` in main.py adds all three headers |
| SEC-06 | 02-01 | Constant-time comparison for all token/code verification | SATISFIED | `pwdlib.verify()` (constant-time); backup code verification iterates ALL rows without early exit |
| SEC-07 | 02-04 | Admin role on every admin endpoint; admin cannot see document content | PARTIAL | Admin API enforced via `get_current_admin` (VERIFIED). But `backend/api/documents.py` has no auth at all — admin JWT not rejected on document access (SC5 gap) |
| ADMIN-01 | 02-04, 02-05 | Admin creates user with temp password, `password_must_change=True` | SATISFIED | `POST /api/admin/users` sets `password_must_change=True`; login flow checks flag |
| ADMIN-02 | 02-04, 02-05 | Admin deactivates user account | SATISFIED | `PATCH /api/admin/users/{id}/status` with sole-admin guard |
| ADMIN-03 | 02-04 | Admin initiates password reset for user (email, no impersonation) | SATISFIED | `POST /api/admin/users/{id}/password-reset` dispatches `send_reset_email.delay()` |
| ADMIN-04 | 02-04, 02-05 | Admin views/adjusts quotas with below-usage warning | SATISFIED | `GET/PATCH /api/admin/users/{id}/quota`; `AdminQuotasTab.vue` |
| ADMIN-05 | 02-04, 02-05 | Admin assigns AI provider/model per user | SATISFIED | `PATCH /api/admin/users/{id}/ai-config`; `AdminAiConfigTab.vue` |
| ADMIN-07 | 02-04 | Admin impersonation explicitly excluded | SATISFIED | No impersonation endpoint; test_admin_impersonation_not_found asserts 404/422 |

---

### Anti-Patterns Found

| File | Line | Pattern | Severity | Impact |
|------|------|---------|----------|--------|
| `backend/api/documents.py` | All endpoints | No `get_current_user` dependency — fully unauthenticated | BLOCKER | Admin JWT does not return 403 for document content (SC5 gap); any request accesses all documents |
| `backend/api/documents.py` | 167 | Comment: "D-03: user_id is NULLABLE in Phase 1" | INFO | Documented intentional deferral to Phase 3 |

No TBD/FIXME/XXX markers found in Phase 2 deliverable files.

---

### Human Verification Required

**4 items need human testing:**

#### 1. TOTP Enrollment End-to-End

**Test:** Log in as a user, navigate to Account settings, click "Set up two-factor authentication", scan the `otpauth://` link with an authenticator app, enter the 6-digit code, view the 10 backup codes screen, check the acknowledgment checkbox, click "Enable 2FA"

**Expected:** 2FA is enabled; next logout + login requires a TOTP code or backup code; login succeeds with valid code and fails with invalid code

**Why human:** Multi-step flow requires a real authenticator app; the otpauth:// link rendering (note: QR image is not rendered — only the link text) is a known MVP deviation

#### 2. Password Reset Email Delivery

**Test:** Trigger password reset for a test account; check the email inbox; follow the reset link; set a new password; attempt to log in without TOTP

**Expected:** Email arrives with correct reset link; link expires after 1 hour; successful reset returns "Password updated. Please sign in." message (no tokens); login proceeds to TOTP gate if 2FA was enabled

**Why human:** Requires SMTP server (Celery + email infrastructure) and actual email receipt; anti-enumeration means the 202 response alone can't confirm email dispatch

#### 3. Sign Out All Devices

**Test:** Log in from two browser tabs; click "Sign out all devices" in Account settings in Tab 1; make an authenticated request in Tab 2

**Expected:** Tab 2's access token is invalidated on next request; Tab 2 is redirected to login; reusing the revoked refresh token causes full family revocation

**Why human:** Multi-session testing requires two live sessions; refresh token reuse detection requires timing

#### 4. Admin Panel Role Visibility

**Test:** Log in as a regular user; verify Admin link is NOT visible in sidebar. Log in as admin; verify "Admin" link with shield icon appears; navigate Users / Quotas / AI Config tabs; create a test user; deactivate them; reset their password

**Expected:** Non-admin users never see the admin UI; admin can perform all CRUD operations; inline deactivation confirmation shows correct user email

**Why human:** Visual rendering and role-conditional DOM requires browser; inline confirmation UX requires human interaction

---

## Gaps Summary

**1 BLOCKER gap** preventing full Phase 2 goal achievement:

**SC5 — Admin JWT → 403 on document content**

The documents API (`backend/api/documents.py`) is completely unauthenticated — a Phase 1 legacy state explicitly noted in STATE.md (D-03 decision). An admin JWT does NOT return 403 when accessing document endpoints because the documents API has no JWT validation at all. The admin.py API correctly has no document content endpoints, and `_user_to_dict()` correctly excludes sensitive fields. But the literal clause of SC5 and SEC-07's "admin cannot access document content...in any response" is not enforced at the document endpoint layer.

**Root cause:** Phase 2 scope defines auth enforcement on new endpoints (`api/auth.py`, `api/admin.py`) but does not retrofit authentication onto the legacy `api/documents.py`, `api/topics.py`, or `api/settings.py`. Phase 3 ("Document Migration & Multi-User Isolation") will add per-user isolation to these endpoints.

**Recommended resolution before marking Phase 2 complete:**
- Narrowest fix: add a `current_user: User = Depends(get_current_user)` check to document endpoint functions, returning 403 if `user.role == "admin"` — minimal change, no migration needed
- Broader fix: update ROADMAP.md to scope SC5's "admin JWT → 403 on documents" clause as part of Phase 3 auth enforcement (where `get_current_user` will be added everywhere anyway)

---

_Verified: 2026-05-22T18:18:52Z_
_Verifier: Claude (gsd-verifier)_