50 lines
1.5 KiB
Python
50 lines
1.5 KiB
Python
import os
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from datetime import datetime, timedelta
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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 passlib.context import CryptContext
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from tables import *
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from sql import *
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from functions import *
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from dotenv import load_dotenv
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load_dotenv()
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secret_key = os.getenv("SECRET_KEY")
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algo = os.getenv("ALGORITHM")
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pwd_context = CryptContext(schemes=['bcrypt'], deprecated="auto")
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oauth2_scheme = OAuth2PasswordBearer(tokenUrl="token")
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def create_access_token(data: dict, expires_delta: timedelta | None = None):
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to_encode = data.copy()
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if expires_delta:
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expire = datetime.now(datetime.timezone.utc) + expires_delta
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else:
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expire = datetime.now(datetime.timezone.utc) + timedelta(minutes=15)
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to_encode.update({"exp": expire})
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encoded_jwt = jwt.encode(to_encode, secret_key, algorithm=algo)
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return encoded_jwt
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async def get_current_user(session: SessionDep, token: str = Depends(oauth2_scheme)):
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credential_exception = HTTPException(status_code=401, detail="Could not validate credentials", headers={"WWW-Authenticate": "Bearer"})
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try:
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payload = jwt.decode(token, secret_key, algorithms=[algo])
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username: str = payload.get("sub")
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if username is None:
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raise credential_exception
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token_data = TokenData(username=username)
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except JWTError:
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raise credential_exception
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user = get_user_by_username(token_data.username, session)
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if user is None:
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raise credential_exception
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return user |