Files
praxis/server/auth/routes.py
T
Praxis CI 00e39a3f85 feat(milestone): merge phase/01 operator-foundation → milestone/v0.4-operator-tier
Phase 1 complete — Operator Foundation:
- Postgres 16 in Docker-in-LXC (asyncpg pool, 5-table schema, PgStore, migrations)
- Operator auth (argon2id, signed stateless cookies, slowapi 5/min rate limit)
- VC issuer key migration SQLite→Postgres (archive-before-active, R-VC-MIG-01)
- Operator bootstrap CLI (create-operator.py, idempotent)
- Backup cron script + G-008 restore drill
- Graceful degradation (server starts without Postgres)
- 272 tests pass, 33 skip (Postgres-requiring), 0 fail

---ci---
project: praxis
phase: 1
milestone: v0.4
status: complete
requirements:
  covered: [REQ-MT-01, REQ-AUTH-01, REQ-NFR-AUTH-01, REQ-NFR-MT-01, REQ-MT-02]
  partial: []
---/ci---
2026-08-04 01:41:06 +00:00

118 lines
3.7 KiB
Python

"""Auth route handlers — login, logout, me (TASK-03-05, D-041, D-056, D-057).
APIRouter(prefix="/api/operator") with:
POST /login — rate-limited 5/min (TASK-03-03), NOT auth-gated.
POST /logout — auth-gated (Depends(current_operator)).
GET /me — auth-gated (React route guard — D-057).
Stateless cookies (D-056): logout clears the server-side session; the
client also clears its cookie. No sessions table.
"""
from __future__ import annotations
from fastapi import APIRouter, Depends, HTTPException, Request, status
from pydantic import BaseModel
from server.auth.dependencies import current_operator
from server.auth.models import Operator
from server.auth.passwords import hash_password, needs_rehash, verify_password
from server.auth.rate_limit import rate_limit_login
router = APIRouter(prefix="/api/operator", tags=["operator-auth"])
class LoginBody(BaseModel):
username: str
password: str
class OperatorOut(BaseModel):
id: str
username: str
display_name: str | None
role: str = "operator"
class LoginResponse(BaseModel):
operator: OperatorOut
class MeResponse(BaseModel):
operator: OperatorOut
class OkResponse(BaseModel):
ok: bool = True
def _operator_out(op: Operator) -> OperatorOut:
return OperatorOut(
id=op.id,
username=op.username,
display_name=op.display_name,
role=op.role,
)
@router.post("/login", response_model=LoginResponse)
@rate_limit_login()
async def login(body: LoginBody, request: Request) -> LoginResponse:
"""Rate-limited login (5/min per IP — D-041).
On success: sets `request.session["operator_id"]` (signed cookie via
SessionMiddleware) + updates last_login_at. On needs_rehash → rehash +
update the store. On failure → 401 (no cookie set).
"""
pg_store = getattr(request.app.state, "pg_store", None)
if pg_store is None:
raise HTTPException(
status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
detail="operator tier unavailable (no Postgres)",
)
row = await pg_store.get_operator_by_username(body.username)
if row is None or not row.get("is_active"):
raise HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail="invalid credentials",
)
if not verify_password(row["password_hash"], body.password):
raise HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail="invalid credentials",
)
op_id = str(row["id"])
request.session["operator_id"] = op_id
await pg_store.update_last_login(op_id)
if needs_rehash(row["password_hash"]):
new_hash = hash_password(body.password)
async with pg_store.pool.acquire() as conn:
await conn.execute(
"UPDATE operators SET password_hash = $1 WHERE id = $2",
new_hash, op_id,
)
return LoginResponse(
operator=OperatorOut(
id=op_id,
username=row["username"],
display_name=row.get("display_name"),
role=row.get("role", "operator"),
)
)
@router.post("/logout", response_model=OkResponse)
async def logout(request: Request, op: Operator = Depends(current_operator)) -> OkResponse:
# Stateless (D-056): clearing the server session invalidates the signed
# cookie's payload; the client also clears its cookie.
request.session.clear()
return OkResponse(ok=True)
@router.get("/me", response_model=MeResponse)
async def me(op: Operator = Depends(current_operator)) -> MeResponse:
"""React route guard endpoint (D-057). 200 → render; 401 → redirect."""
return MeResponse(operator=_operator_out(op))
__all__ = ["router"]