from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials from fastapi import HTTPException, status, Depends from apps.web.models.users import Users from pydantic import BaseModel from typing import Union, Optional from constants import ERROR_MESSAGES from passlib.context import CryptContext from datetime import datetime, timedelta import requests import jwt import config JWT_SECRET_KEY = config.WEBUI_JWT_SECRET_KEY ALGORITHM = "HS256" ############## # Auth Utils ############## bearer_scheme = HTTPBearer() pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto") def verify_password(plain_password, hashed_password): return ( pwd_context.verify(plain_password, hashed_password) if hashed_password else None ) def get_password_hash(password): return pwd_context.hash(password) def create_token(data: dict, expires_delta: Union[timedelta, None] = None) -> str: payload = data.copy() if expires_delta: expire = datetime.utcnow() + expires_delta payload.update({"exp": expire}) encoded_jwt = jwt.encode(payload, JWT_SECRET_KEY, algorithm=ALGORITHM) return encoded_jwt def decode_token(token: str) -> Optional[dict]: try: decoded = jwt.decode(token, JWT_SECRET_KEY, options={"verify_signature": False}) return decoded except Exception as e: return None def extract_token_from_auth_header(auth_header: str): return auth_header[len("Bearer ") :] def get_current_user(auth_token: HTTPAuthorizationCredentials = Depends(HTTPBearer())): data = decode_token(auth_token.credentials) if data != None and "email" in data: user = Users.get_user_by_email(data["email"]) if user is None: raise HTTPException( status_code=status.HTTP_401_UNAUTHORIZED, detail=ERROR_MESSAGES.INVALID_TOKEN, ) return user else: raise HTTPException( status_code=status.HTTP_401_UNAUTHORIZED, detail=ERROR_MESSAGES.UNAUTHORIZED, )