vexen-auth
Sistema de autenticación para aplicaciones Vexen con arquitectura hexagonal.
Características
- JWT Authentication: Tokens de acceso y refresh
- Provider Local: Autenticación email/password
- Sistema Extensible: Listo para OAuth, SAML, etc.
- Password Hashing: Bcrypt con salt automático
- Token Management: Manejo y revocación de tokens
- SQLAlchemy Async: Integración con SQLAlchemy 2.0+
- Arquitectura Hexagonal: Separación clara de capas
- Type Safe: Totalmente tipado
- Integración: Compatible con vexen-user y vexen-rbac
Instalación
pip install vexen-auth
Uso Rápido
import asyncio
from vexen_auth import VexenAuth, AuthConfig, LoginRequest
async def main():
# Configurar VexenAuth
config = AuthConfig(
database_url="postgresql+asyncpg://user:pass@localhost/db",
secret_key="your-secret-key",
access_token_expires_minutes=15,
refresh_token_expires_days=30,
)
# Usar VexenAuth
async with VexenAuth(config) as auth:
# Login
login_req = LoginRequest(
email="user@example.com",
password="SecurePassword123"
)
response = await auth.service.login(login_req)
if response:
print(f"Access token: {response.access_token}")
print(f"User ID: {response.user_id}")
if __name__ == "__main__":
asyncio.run(main())
Arquitectura
VexenAuth sigue arquitectura hexagonal con clara separación de responsabilidades:
vexen_auth/
├── domain/ # Lógica de negocio y entidades
│ ├── entity/ # Entidades de dominio (AuthToken, UserCredential)
│ ├── repository/ # Puertos de repositorio (interfaces)
│ └── provider/ # Puerto de proveedor de auth (interface)
│
├── application/ # Casos de uso y DTOs
│ ├── dto/ # Data Transfer Objects
│ ├── usecase/ # Casos de uso (Login, Refresh, Logout, Verify)
│ └── service/ # Servicio de aplicación
│
└── infraestructure/ # Implementaciones externas
├── provider/ # Implementaciones de proveedores (Local, OAuth, etc.)
├── security/ # Utilidades JWT y password
└── output/
└── persistence/
└── sqlalchemy/ # Adaptador SQLAlchemy
Configuración
Opciones de AuthConfig
@dataclass
class AuthConfig:
# Base de datos
database_url: str # URL de conexión PostgreSQL
adapter: str = "sqlalchemy" # Adaptador de persistencia
# Configuración JWT
secret_key: str # Clave de firma JWT
algorithm: str = "HS256" # Algoritmo JWT
access_token_expires_minutes: int = 15 # TTL del access token
refresh_token_expires_days: int = 30 # TTL del refresh token
# Integración externa (opcional)
user_service = None # Instancia VexenUser
user_repository = None # Repositorio de usuarios directo
API Reference
Servicio de Autenticación
Login
from vexen_auth import LoginRequest
request = LoginRequest(
email="user@example.com",
password="password123"
)
response = await auth.service.login(request)
# Retorna: LoginResponse | None
# Response contiene: access_token, refresh_token, user_id
Refresh Token
from vexen_auth import RefreshTokenRequest
request = RefreshTokenRequest(
refresh_token="..."
)
response = await auth.service.refresh(request)
# Retorna: RefreshTokenResponse | None
# Response contiene: access_token
Logout
from vexen_auth import LogoutRequest
request = LogoutRequest(
refresh_token="..."
)
success = await auth.service.logout(request)
# Retorna: bool
Verificar Token
from vexen_auth import VerifyTokenRequest
request = VerifyTokenRequest(
access_token="..."
)
response = await auth.service.verify(request)
# Retorna: VerifyTokenResponse | None
# Response contiene: valid, user_id
Integración con vexen-user
VexenAuth necesita información de usuarios de vexen-user. Puedes integrarlo de dos formas:
Opción 1: Acceso Directo a Repositorio
from vexen_user import VexenUser
# Inicializar vexen-user
user_system = VexenUser(database_url="postgresql+asyncpg://...")
await user_system.init()
# Configurar VexenAuth con repositorio de usuarios
config = AuthConfig(
database_url="postgresql+asyncpg://...",
secret_key="...",
user_repository=user_system.repository,
)
auth = VexenAuth(config)
await auth.init()
Opción 2: Usando vexen-core
from vexen_core import VexenContainer, VexenConfig
config = VexenConfig(
database_url="postgresql+asyncpg://...",
secret_key="...",
)
async with VexenContainer(config) as vexen:
# Auth ya está integrado con user
response = await vexen.auth.service.login(request)
Schema de Base de Datos
VexenAuth crea dos tablas:
user_credentials
id(int, PK)user_id(str, unique, FK a tabla users)password_hash(str)created_at(datetime)updated_at(datetime, nullable)
auth_tokens
id(int, PK)user_id(str, FK a tabla users)token(str, unique, refresh token hasheado)expires_at(datetime)created_at(datetime)revoked(bool)
Consideraciones de Seguridad
- Password Hashing: Usa bcrypt con salting automático
- Token Storage: Refresh tokens se hashean (SHA-256) antes de almacenar
- Token Expiration: Expiración configurable para access y refresh tokens
- Token Revocation: Logout explícito revoca refresh tokens
- JWT Algorithm: Por defecto HS256, configurable
Extender Proveedores de Autenticación
VexenAuth soporta múltiples proveedores de autenticación. Para agregar un nuevo proveedor:
from vexen_auth.domain.provider import IAuthProviderPort
class OAuthProvider(IAuthProviderPort):
async def authenticate(self, email: str, password: str):
# Implementar autenticación OAuth
pass
async def refresh_token(self, refresh_token: str):
# Implementar refresh de token
pass
# Implementar otros métodos requeridos...
Desarrollo
# Instalar dependencias
pip install -e ".[dev]"
# Ejecutar ejemplo
python example_usage.py
# Formatear código
ruff format .
# Linting
ruff check . --fix
Licencia
MIT
Proyectos Relacionados
- vexen-user - Sistema de gestión de usuarios
- vexen-rbac - Sistema de control de acceso basado en roles
- vexen-core - Capa de integración
Metadata
Release files for vexen-auth 0.1.3
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