77865dae90
Features: - User authentication with JWT - Client management with CRUD operations - Invoice generation and management - SQLite database with Alembic migrations - Detailed project documentation
77 lines
2.3 KiB
Python
77 lines
2.3 KiB
Python
from datetime import datetime, timedelta
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from typing import Any, Optional, Union
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from fastapi import Depends, HTTPException, status
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from fastapi.security import OAuth2PasswordBearer
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from jose import JWTError, jwt
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from sqlalchemy.orm import Session
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from app.core.config import settings
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from app.core.security import verify_password
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from app.crud.crud_user import get_user_by_email
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from app.db.session import get_db
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from app.models.user import User
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from app.schemas.token import TokenPayload
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl=f"{settings.API_V1_STR}/auth/login")
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def authenticate_user(db: Session, email: str, password: str) -> Optional[User]:
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"""
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Authenticate user by email and password
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"""
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user = get_user_by_email(db, email=email)
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if not user:
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return None
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if not verify_password(password, user.hashed_password):
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return None
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return user
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def create_access_token(subject: Union[str, Any], expires_delta: Optional[timedelta] = None) -> str:
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"""
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Create JWT access token
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"""
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if expires_delta:
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expire = datetime.utcnow() + expires_delta
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else:
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expire = datetime.utcnow() + timedelta(
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minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES
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)
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to_encode = {"exp": expire, "sub": str(subject)}
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encoded_jwt = jwt.encode(
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to_encode, settings.SECRET_KEY, algorithm=settings.ALGORITHM
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)
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return encoded_jwt
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def get_current_user(
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db: Session = Depends(get_db), token: str = Depends(oauth2_scheme)
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) -> User:
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"""
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Get current user from JWT token
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"""
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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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try:
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payload = jwt.decode(
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token, settings.SECRET_KEY, algorithms=[settings.ALGORITHM]
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)
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token_data = TokenPayload(**payload)
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if token_data.sub is None:
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raise credentials_exception
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except JWTError:
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raise credentials_exception
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user = get_user_by_email(db, email=token_data.sub)
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if user is None:
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raise credentials_exception
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if not user.is_active:
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raise HTTPException(
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status_code=status.HTTP_403_FORBIDDEN,
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detail="Inactive user"
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)
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return user |