phil
741050db89
Fix primary keys (optional) Add baskets, importers, plugins, reactor Add fake replacement fro graphql defs (to_migrate) Add typing marker (py.typed)
154 lines
4.9 KiB
Python
154 lines
4.9 KiB
Python
from datetime import datetime, timedelta
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import logging
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from fastapi import Depends, HTTPException, status
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from fastapi.security import OAuth2PasswordBearer
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from passlib.context import CryptContext
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from passlib.exc import UnknownHashError
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from pydantic import BaseModel
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from sqlmodel.ext.asyncio.session import AsyncSession
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from jose import JWTError, jwt, ExpiredSignatureError
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from sqlalchemy import select
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from sqlalchemy.orm import selectinload
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from gisaf.config import conf
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from gisaf.database import db_session
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from gisaf.models.authentication import User, UserRead
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logger = logging.getLogger(__name__)
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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class Token(BaseModel):
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access_token: str
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token_type: str
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class TokenData(BaseModel):
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username: str | None = None
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# class User(BaseModel):
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# username: str
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# email: str | None = None
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# full_name: str | None = None
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# disabled: bool | None = None
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token", auto_error=False)
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def get_password_hash(password: str):
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return pwd_context.hash(password)
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async def delete_user(session: AsyncSession, username: str) -> None:
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user_in_db: User | None = await get_user(session, username)
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if user_in_db is None:
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raise SystemExit(f'User {username} does not exist in the database')
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await session.delete(user_in_db)
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async def enable_user(session: AsyncSession, username: str, enable=True):
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user_in_db: UserRead | None = await get_user(session, username)
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if user_in_db is None:
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raise SystemExit(f'User {username} does not exist in the database')
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user_in_db.disabled = not enable # type: ignore
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session.add(user_in_db)
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await session.commit()
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async def create_user(session: AsyncSession, username: str, password: str, full_name: str,
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email: str, **kwargs):
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user_in_db: User | None = await get_user(session, username)
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if user_in_db is None:
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user = User(
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username=username,
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password=get_password_hash(password),
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full_name=full_name,
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email=email,
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disabled=False
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)
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session.add(user)
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else:
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user_in_db.full_name = full_name # type: ignore
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user_in_db.email = email # type: ignore
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user_in_db.password = get_password_hash(password) # type: ignore
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await session.commit()
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async def get_user(
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session: AsyncSession,
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username: str) -> (User | None):
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query = select(User).where(User.username==username).options(selectinload(User.roles))
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data = await session.exec(query)
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return data.scalar()
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def verify_password(user: User, plain_password):
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try:
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return pwd_context.verify(plain_password, user.password)
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except UnknownHashError:
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logger.warning(f'Password not encrypted in DB for {user.username}, assuming it is stored in plain text')
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return plain_password == user.password
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async def get_current_user(
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token: str = Depends(oauth2_scheme)) -> UserRead | None:
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credentials_exception = HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Could not validate credentials",
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headers={"WWW-Authenticate": "Bearer"},
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)
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expired_exception = HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="Token has expired",
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headers={"WWW-Authenticate": "Bearer"},
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)
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if token is None:
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return None
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try:
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payload = jwt.decode(token, conf.crypto.secret,
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algorithms=[conf.crypto.algorithm])
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username: str = payload.get("sub", '')
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if username == '':
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raise credentials_exception
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token_data = TokenData(username=username)
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except ExpiredSignatureError:
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raise expired_exception
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except JWTError:
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raise credentials_exception
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async with db_session() as session:
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user = await get_user(session, username=token_data.username)
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if user is None:
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raise credentials_exception
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return user
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async def authenticate_user(username: str, password: str):
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async with db_session() as session:
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user = await get_user(session, username)
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if not user:
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return False
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if not verify_password(user, password):
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return False
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return user
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# async def get_current_active_user(
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# current_user: Annotated[UserRead, Depends(get_current_user)]):
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# if current_user.disabled:
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# raise HTTPException(status_code=400, detail="Inactive user")
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# return current_user
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def create_access_token(data: dict, expires_delta: timedelta):
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to_encode = data.copy()
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expire = datetime.utcnow() + expires_delta
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to_encode.update({"exp": expire})
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encoded_jwt = jwt.encode(to_encode,
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conf.crypto.secret,
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algorithm=conf.crypto.algorithm)
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return encoded_jwt
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