Adriano
d6508e0ae8
Implementazione completa del backend FastAPI: - Modelli SQLAlchemy: User, Recipe, RecipeVersion, RecipeTask, RecipeSubtask, Measurement, AccessLog, SystemSetting, RecipeVersionAudit - Schemas Pydantic v2 per tutti i CRUD + statistiche SPC - Middleware: API Key auth (X-API-Key) con role checking + access logging - Router: auth, users, recipes, tasks, measurements, files, settings - Services: auth (bcrypt+secrets), recipe (copy-on-write versioning), measurement (auto pass/fail con UTL/UWL/LWL/LTL) - Alembic env.py con import modelli attivi - Fix architect review: no double-commit, recipe_id subquery filter, user_id in access logs, type annotations corrette Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
98 lines
2.7 KiB
Python
98 lines
2.7 KiB
Python
"""Authentication service - password hashing, API key management."""
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import secrets
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from datetime import datetime
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from passlib.context import CryptContext
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from sqlalchemy import select, update
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from sqlalchemy.ext.asyncio import AsyncSession
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from models.user import User
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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def hash_password(password: str) -> str:
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"""Hash a password using bcrypt."""
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return pwd_context.hash(password)
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def verify_password(plain_password: str, hashed_password: str) -> bool:
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"""Verify a password against its hash."""
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return pwd_context.verify(plain_password, hashed_password)
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def generate_api_key() -> str:
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"""Generate a secure 64-character API key."""
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return secrets.token_urlsafe(48) # 64 chars base64
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async def authenticate_user(
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db: AsyncSession, username: str, password: str
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) -> User | None:
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"""Authenticate user by username and password."""
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result = await db.execute(
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select(User).where(User.username == username, User.active == True)
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)
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user = result.scalar_one_or_none()
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if user is None or not verify_password(password, user.password_hash):
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return None
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return user
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async def login_user(db: AsyncSession, user: User) -> str:
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"""Generate API key and update last_login for user."""
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api_key = generate_api_key()
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await db.execute(
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update(User)
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.where(User.id == user.id)
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.values(api_key=api_key, last_login=datetime.utcnow())
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)
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await db.flush()
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return api_key
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async def logout_user(db: AsyncSession, user: User) -> None:
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"""Invalidate user's API key."""
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await db.execute(
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update(User).where(User.id == user.id).values(api_key=None)
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)
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await db.flush()
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async def create_user(
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db: AsyncSession,
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username: str,
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password: str,
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display_name: str,
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email: str | None = None,
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roles: list[str] | None = None,
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is_admin: bool = False,
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language_pref: str = "it",
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theme_pref: str = "light",
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) -> User:
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"""Create a new user with hashed password."""
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user = User(
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username=username,
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password_hash=hash_password(password),
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display_name=display_name,
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email=email,
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roles=roles or [],
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is_admin=is_admin,
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language_pref=language_pref,
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theme_pref=theme_pref,
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)
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db.add(user)
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await db.flush()
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await db.refresh(user)
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return user
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async def regenerate_api_key(db: AsyncSession, user_id: int) -> str:
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"""Regenerate API key for a user."""
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new_key = generate_api_key()
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await db.execute(
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update(User).where(User.id == user_id).values(api_key=new_key)
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)
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await db.flush()
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return new_key
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