Files
Johan LEROY d7f775f9f7 feat(auth): verifie le lien de reset des le chargement, sans le consommer
Ajoute GET /auth/reset-password/validate (lecture seule, sans rate
limit : le jeton est un secret de 256 bits non brute-forcable) pour que
la page reset-password redirige immediatement vers /login si le lien
est invalide ou expire, plutot que d'attendre la soumission du
formulaire. La verification a la soumission (confirm_password_reset)
reste la seule source de verite atomique.
2026-09-17 15:28:50 +02:00

345 lines
11 KiB
Python

from collections.abc import Iterator
from uuid import uuid4
import pytest
from fastapi import FastAPI
from httpx import AsyncClient
from app.api.deps import get_auth_service
from app.core.principal import Principal
from app.core.roles import AccountKind, Role
from app.services.auth import (
AuthenticatedSession,
InvalidCredentialsError,
InvalidOrExpiredResetTokenError,
RateLimitedError,
SessionRejectedError,
)
IDENTIFIANTS = {"email": "operateur@enervision.fr", "password": "un-mot-de-passe-valide"}
PRINCIPAL = Principal(
id=uuid4(),
email="operateur@enervision.fr",
role=Role.OPERATEUR,
kind=AccountKind.HUMAIN,
must_change_password=False,
)
class FauxService:
def __init__(self, erreur: Exception | None = None, *, jeton_valide: bool = True) -> None:
self._erreur = erreur
self._jeton_valide = jeton_valide
async def refresh(self, **_: object) -> AuthenticatedSession:
return await self.authenticate()
async def is_reset_token_valid(self, **_: object) -> bool:
return self._jeton_valide
async def logout(self, **_: object) -> None:
return None
async def request_password_reset(self, **_: object) -> None:
if self._erreur is not None:
raise self._erreur
return None
async def confirm_password_reset(self, **_: object) -> AuthenticatedSession:
return await self.authenticate()
async def authenticate(self, **_: object) -> AuthenticatedSession:
if self._erreur is not None:
raise self._erreur
return AuthenticatedSession(
principal=PRINCIPAL,
access_token="un.jeton.factice",
expires_in=900,
refresh_secret="un-secret-opaque",
)
@pytest.fixture
def fake_auth_service(app: FastAPI) -> Iterator[list[Exception | None]]:
programme: list[Exception | None] = [None]
app.dependency_overrides[get_auth_service] = lambda: FauxService(programme[0])
yield programme
app.dependency_overrides.pop(get_auth_service, None)
async def test_login_returns_the_token_and_the_principal_when_credentials_match(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
response = await client.post("/api/v1/auth/login", json=IDENTIFIANTS)
assert response.status_code == 200
corps = response.json()
assert corps["access_token"] == "un.jeton.factice"
assert corps["token_type"] == "bearer"
assert corps["principal"]["role"] == "operateur"
async def test_login_forbids_intermediaries_from_caching_the_response(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
response = await client.post("/api/v1/auth/login", json=IDENTIFIANTS)
assert response.headers["cache-control"] == "no-store"
async def test_login_never_reveals_which_half_of_the_credentials_was_wrong(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
fake_auth_service[0] = InvalidCredentialsError("Identifiants invalides")
response = await client.post("/api/v1/auth/login", json=IDENTIFIANTS)
assert response.status_code == 401
assert response.json() == {"detail": "Identifiants invalides"}
async def test_login_returns_429_with_a_retry_after_when_the_rate_limit_is_reached(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
fake_auth_service[0] = RateLimitedError(900)
response = await client.post("/api/v1/auth/login", json=IDENTIFIANTS)
assert response.status_code == 429
assert response.headers["retry-after"] == "900"
@pytest.mark.parametrize(
"corps",
[
{"email": "pas-une-adresse", "password": "un-mot-de-passe-valide"},
{"email": "operateur@enervision.fr"},
{"email": "operateur@enervision.fr", "password": "x" * 129},
],
ids=["adresse_invalide", "mot_de_passe_absent", "mot_de_passe_trop_long"],
)
async def test_login_rejects_a_malformed_body_without_echoing_the_password(
fake_auth_service: list[Exception | None], client: AsyncClient, corps: dict[str, str]
) -> None:
response = await client.post("/api/v1/auth/login", json=corps)
assert response.status_code == 422
assert "un-mot-de-passe-valide" not in response.text
assert "x" * 129 not in response.text
async def test_login_posts_an_http_only_refresh_cookie_scoped_to_the_auth_routes(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
response = await client.post("/api/v1/auth/login", json=IDENTIFIANTS)
depose = response.headers["set-cookie"]
assert depose.startswith("ev_refresh=un-secret-opaque")
assert "HttpOnly" in depose
assert "SameSite=strict" in depose
assert "Path=/api/v1/auth" in depose
async def test_login_keeps_the_refresh_secret_out_of_the_response_body(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
response = await client.post("/api/v1/auth/login", json=IDENTIFIANTS)
assert "un-secret-opaque" not in response.text
async def test_refresh_returns_401_when_no_cookie_is_presented(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
response = await client.post("/api/v1/auth/refresh")
assert response.status_code == 401
async def test_refresh_rotates_the_cookie_when_the_session_is_still_valid(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
client.cookies.set("ev_refresh", "un-secret-opaque")
response = await client.post("/api/v1/auth/refresh")
assert response.status_code == 200
assert "ev_refresh=" in response.headers["set-cookie"]
async def test_refresh_clears_the_cookie_when_the_session_is_rejected(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
fake_auth_service[0] = SessionRejectedError("Session révoquée")
client.cookies.set("ev_refresh", "un-secret-rejoue")
response = await client.post("/api/v1/auth/refresh")
assert response.status_code == 401
assert 'ev_refresh=""' in response.headers["set-cookie"]
assert "Path=/api/v1/auth" in response.headers["set-cookie"]
async def test_logout_answers_204_and_clears_the_cookie(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
client.cookies.set("ev_refresh", "un-secret-opaque")
response = await client.post("/api/v1/auth/logout")
assert response.status_code == 204
assert 'ev_refresh=""' in response.headers["set-cookie"]
async def test_logout_stays_idempotent_without_a_cookie(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
response = await client.post("/api/v1/auth/logout")
assert response.status_code == 204
@pytest.mark.parametrize(
"chemin",
["/api/v1/auth/refresh", "/api/v1/auth/logout"],
ids=["rotation", "deconnexion"],
)
async def test_a_cookie_bearing_route_refuses_a_foreign_origin(
fake_auth_service: list[Exception | None], client: AsyncClient, chemin: str
) -> None:
response = await client.post(chemin, headers={"Origin": "https://malveillant.example"})
assert response.status_code == 403
async def test_a_cookie_bearing_route_accepts_a_request_without_origin(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
response = await client.post("/api/v1/auth/logout")
assert response.status_code != 403
async def test_forgot_password_answers_202_when_the_account_exists(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
response = await client.post(
"/api/v1/auth/forgot-password", json={"email": "operateur@enervision.fr"}
)
assert response.status_code == 202
assert response.headers["cache-control"] == "no-store"
async def test_forgot_password_answers_202_identically_when_the_account_is_unknown(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
response = await client.post(
"/api/v1/auth/forgot-password", json={"email": "inconnu@enervision.fr"}
)
assert response.status_code == 202
async def test_forgot_password_returns_429_with_a_retry_after_when_the_rate_limit_is_reached(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
fake_auth_service[0] = RateLimitedError(900)
response = await client.post(
"/api/v1/auth/forgot-password", json={"email": "operateur@enervision.fr"}
)
assert response.status_code == 429
assert response.headers["retry-after"] == "900"
async def test_forgot_password_rejects_a_malformed_email(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
response = await client.post("/api/v1/auth/forgot-password", json={"email": "pas-un-email"})
assert response.status_code == 422
@pytest.fixture
def fake_auth_service_reset_validity(app: FastAPI) -> Iterator[list[bool]]:
programme = [True]
app.dependency_overrides[get_auth_service] = lambda: FauxService(jeton_valide=programme[0])
yield programme
app.dependency_overrides.pop(get_auth_service, None)
async def test_validate_reset_token_reports_a_living_token(
fake_auth_service_reset_validity: list[bool], client: AsyncClient
) -> None:
response = await client.get(
"/api/v1/auth/reset-password/validate", params={"token": "un-secret-opaque"}
)
assert response.status_code == 200
assert response.json() == {"valid": True}
async def test_validate_reset_token_reports_an_invalid_or_expired_token(
fake_auth_service_reset_validity: list[bool], client: AsyncClient
) -> None:
fake_auth_service_reset_validity[0] = False
response = await client.get(
"/api/v1/auth/reset-password/validate", params={"token": "un-secret-perime"}
)
assert response.status_code == 200
assert response.json() == {"valid": False}
async def test_reset_password_returns_the_token_and_the_cookie_on_success(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
response = await client.post(
"/api/v1/auth/reset-password",
json={"token": "un-secret-opaque", "new_password": "Un-nouveau-mot-de-passe1!"},
)
assert response.status_code == 200
assert response.cookies.get("ev_refresh") is not None
assert "refresh_secret" not in response.text
async def test_reset_password_rejects_an_invalid_or_expired_token(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
fake_auth_service[0] = InvalidOrExpiredResetTokenError("Lien invalide ou expiré")
response = await client.post(
"/api/v1/auth/reset-password",
json={"token": "un-secret-perime", "new_password": "Un-nouveau-mot-de-passe1!"},
)
assert response.status_code == 400
async def test_reset_password_rejects_a_weak_password(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
response = await client.post(
"/api/v1/auth/reset-password",
json={"token": "un-secret-opaque", "new_password": "trop-simple"},
)
assert response.status_code == 422
async def test_reset_password_refuses_a_foreign_origin(
fake_auth_service: list[Exception | None], client: AsyncClient
) -> None:
response = await client.post(
"/api/v1/auth/reset-password",
json={"token": "un-secret-opaque", "new_password": "Un-nouveau-mot-de-passe1!"},
headers={"Origin": "https://malveillant.example"},
)
assert response.status_code == 403