54 lines
1.7 KiB
Python
54 lines
1.7 KiB
Python
from fastapi import Depends, HTTPException
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from fastapi.security import OAuth2PasswordBearer
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from jose import JWTError, jwt
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from datetime import datetime, timedelta
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from passlib.context import CryptContext
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from models.user import User
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from core.database import get_db
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from sqlalchemy.orm import Session
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from typing import Optional
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# OAuth2 scheme
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="login")
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# Password hashing
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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SECRET_KEY = "demo-secret-key"
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ALGORITHM = "HS256"
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def get_password_hash(password: str):
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return pwd_context.hash(password)
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def verify_password(plain_password: str, hashed_password: str):
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return pwd_context.verify(plain_password, hashed_password)
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def create_access_token(data: dict, expires_delta: Optional[timedelta] = None):
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to_encode = data.copy()
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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(minutes=15)
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to_encode.update({"exp": expire})
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return jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
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async def get_current_user_demo(
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token: str = Depends(oauth2_scheme),
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db: Session = Depends(get_db)
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):
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credentials_exception = HTTPException(
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status_code=401,
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detail="Could not validate credentials"
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)
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try:
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payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
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user_id: str = payload.get("sub")
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if user_id 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 = db.query(User).filter(User.id == user_id).first()
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if not user:
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raise credentials_exception
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return user
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