feat(auth): politique de complexite du mot de passe et flux de reinitialisation
Remplace la regle de longueur seule (12 caracteres) par une exigence de composition (8 caracteres minimum, majuscule, minuscule, chiffre, caractere special), non documentee dans les exigences officielles du projet, par une regle explicite partagee entre le backend (validateur Pydantic) et le frontend. Ajoute un flux "mot de passe oublie" en libre-service, absent jusqu'ici : jeton a usage unique hache en base (meme principe que les refresh tokens), expirant a 15 minutes, envoye par email via un service SMTP (aiosmtplib, Mailpit en dev), avec limitation de debit dediee et reponse generique pour eviter l'enumeration des comptes. Closes #87
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# Le premier test démontre l'atomicité de `consume()` : sur un double, deux soumissions
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# concurrentes du même lien réussiraient toutes les deux.
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import uuid
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from datetime import UTC, datetime, timedelta
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import pytest
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from sqlalchemy.exc import IntegrityError
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from sqlalchemy.ext.asyncio import AsyncSession
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from app.core.roles import Role
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from app.core.security import fingerprint_refresh, generate_refresh_secret
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from app.repositories.password_reset_token import PasswordResetTokenRepository
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from app.repositories.user import UserRepository
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pytestmark = pytest.mark.integration
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DUREE = timedelta(minutes=15)
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async def un_compte(session: AsyncSession) -> uuid.UUID:
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compte = await UserRepository(session).create(
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email=f"reset-{uuid.uuid4().hex[:12]}@enervision.fr",
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password_hash="$argon2id$x",
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role=Role.LECTEUR,
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)
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return compte.id
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async def un_jeton(
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depot: PasswordResetTokenRepository, user_id: uuid.UUID, *, duree: timedelta = DUREE
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) -> str:
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secret = generate_refresh_secret()
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await depot.create(
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user_id=user_id,
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token_hash=fingerprint_refresh(secret),
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expires_at=datetime.now(UTC) + duree,
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client_ip="203.0.113.10",
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user_agent="pytest",
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)
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return secret
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async def test_consume_only_succeeds_once(session: AsyncSession) -> None:
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depot = PasswordResetTokenRepository(session)
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secret = await un_jeton(depot, await un_compte(session))
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premier = await depot.consume(fingerprint_refresh(secret))
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second = await depot.consume(fingerprint_refresh(secret))
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await session.rollback()
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assert premier is not None
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assert second is None
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async def test_consume_refuses_an_expired_token(session: AsyncSession) -> None:
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depot = PasswordResetTokenRepository(session)
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secret = await un_jeton(depot, await un_compte(session), duree=-timedelta(minutes=1))
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revendique = await depot.consume(fingerprint_refresh(secret))
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await session.rollback()
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assert revendique is None
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async def test_consume_returns_nothing_for_an_unknown_fingerprint(
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session: AsyncSession,
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) -> None:
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revendique = await PasswordResetTokenRepository(session).consume(
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fingerprint_refresh(generate_refresh_secret())
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)
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assert revendique is None
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async def test_invalidate_all_for_user_only_touches_living_tokens(
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session: AsyncSession,
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) -> None:
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depot = PasswordResetTokenRepository(session)
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compte = await un_compte(session)
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await un_jeton(depot, compte)
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await un_jeton(depot, compte)
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invalides = await depot.invalidate_all_for_user(compte)
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second_passage = await depot.invalidate_all_for_user(compte)
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await session.rollback()
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assert invalides == 2
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assert second_passage == 0
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async def test_the_database_refuses_two_tokens_sharing_a_fingerprint(
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session: AsyncSession,
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) -> None:
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depot = PasswordResetTokenRepository(session)
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compte = await un_compte(session)
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secret = generate_refresh_secret()
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await depot.create(
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user_id=compte,
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token_hash=fingerprint_refresh(secret),
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expires_at=datetime.now(UTC) + DUREE,
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client_ip=None,
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user_agent=None,
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)
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with pytest.raises(IntegrityError):
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await depot.create(
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user_id=compte,
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token_hash=fingerprint_refresh(secret),
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expires_at=datetime.now(UTC) + DUREE,
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client_ip=None,
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user_agent=None,
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)
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await session.rollback()
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