60 lines
2.0 KiB
Python
60 lines
2.0 KiB
Python
from datetime import datetime, timedelta, timezone
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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 passlib.context import CryptContext
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from sqlalchemy.orm import Session
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from app.config import settings
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from app.database import get_db
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from app.models import AdminUser
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="/api/auth/login")
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def verify_password(plain_password: str, hashed_password: str) -> bool:
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return pwd_context.verify(plain_password, hashed_password)
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def hash_password(password: str) -> str:
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return pwd_context.hash(password)
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def create_access_token(data: dict) -> str:
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to_encode = data.copy()
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expire = datetime.now(timezone.utc) + timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES)
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to_encode.update({"exp": expire})
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return jwt.encode(to_encode, settings.SECRET_KEY, algorithm="HS256")
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def authenticate_admin(db: Session, username: str, password: str) -> AdminUser | None:
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user = db.query(AdminUser).filter(AdminUser.username == username).first()
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if not user or not verify_password(password, user.hashed_password):
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return None
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return user
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def get_current_admin(
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token: str = Depends(oauth2_scheme),
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db: Session = Depends(get_db),
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) -> AdminUser:
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credentials_exception = HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail="توکن نامعتبر یا منقضی شده است",
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headers={"WWW-Authenticate": "Bearer"},
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)
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try:
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payload = jwt.decode(token, settings.SECRET_KEY, algorithms=["HS256"])
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username: str | None = payload.get("sub")
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if username 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(AdminUser).filter(AdminUser.username == username).first()
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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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