forked from open-webui/open-webui
106 lines
2.8 KiB
Python
106 lines
2.8 KiB
Python
from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
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from fastapi import HTTPException, status, Depends
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from apps.web.models.users import Users
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from pydantic import BaseModel
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from typing import Union, Optional
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from constants import ERROR_MESSAGES
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from passlib.context import CryptContext
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from datetime import datetime, timedelta
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import requests
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import jwt
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import logging
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import config
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logging.getLogger("passlib").setLevel(logging.ERROR)
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SESSION_SECRET = config.WEBUI_SECRET_KEY
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ALGORITHM = "HS256"
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##############
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# Auth Utils
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##############
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bearer_security = HTTPBearer()
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pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
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def verify_password(plain_password, hashed_password):
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return (
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pwd_context.verify(plain_password, hashed_password) if hashed_password else None
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)
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def get_password_hash(password):
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return pwd_context.hash(password)
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def create_token(data: dict, expires_delta: Union[timedelta, None] = None) -> str:
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payload = data.copy()
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if expires_delta:
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expire = datetime.utcnow() + expires_delta
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payload.update({"exp": expire})
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encoded_jwt = jwt.encode(payload, SESSION_SECRET, algorithm=ALGORITHM)
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return encoded_jwt
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def decode_token(token: str) -> Optional[dict]:
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try:
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decoded = jwt.decode(token, SESSION_SECRET, algorithms=[ALGORITHM])
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return decoded
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except Exception as e:
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return None
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def extract_token_from_auth_header(auth_header: str):
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return auth_header[len("Bearer ") :]
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def get_http_authorization_cred(auth_header: str):
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try:
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scheme, credentials = auth_header.split(" ")
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return {
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"scheme": scheme,
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"credentials": credentials,
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}
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except:
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raise ValueError(ERROR_MESSAGES.INVALID_TOKEN)
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def get_current_user(
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auth_token: HTTPAuthorizationCredentials = Depends(bearer_security),
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):
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data = decode_token(auth_token.credentials)
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if data != None and "id" in data:
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user = Users.get_user_by_id(data["id"])
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if user is None:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail=ERROR_MESSAGES.INVALID_TOKEN,
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)
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return user
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else:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail=ERROR_MESSAGES.UNAUTHORIZED,
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)
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def get_verified_user(user=Depends(get_current_user)):
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if user.role not in {"user", "admin"}:
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail=ERROR_MESSAGES.ACCESS_PROHIBITED,
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)
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return user
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def get_admin_user(user=Depends(get_current_user)):
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if user.role != "admin":
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raise HTTPException(
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status_code=status.HTTP_401_UNAUTHORIZED,
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detail=ERROR_MESSAGES.ACCESS_PROHIBITED,
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)
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return user
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