zhenxun_bot/plugins/web_ui/auth/__init__.py
2022-04-04 20:33:37 +08:00

90 lines
2.5 KiB
Python

from datetime import datetime, timedelta
from typing import Optional
from starlette import status
from fastapi import Depends, HTTPException
from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
from pydantic import BaseModel
from configs.config import Config
from jose import JWTError, jwt
import nonebot
app = nonebot.get_app()
SECRET_KEY = "09d25e094faa6ca2556c818166b7a9563b93f7099f6f0f4caa6cf63b88e8d3e7"
ALGORITHM = "HS256"
ACCESS_TOKEN_EXPIRE_MINUTES = 30
oauth2_scheme = OAuth2PasswordBearer(tokenUrl="webui/login")
class User(BaseModel):
username: str
password: str
class Token(BaseModel):
access_token: str
token_type: str
# USER_LIST = [
# User(username="admin", password="123")
# ]
def get_user(uname: str) -> Optional[User]:
username = Config.get_config("web-ui", "username")
password = Config.get_config("web-ui", "password")
if username and password and uname == username:
return User(username=username, password=password)
form_exception = HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail="Could not validate credentials",
headers={"WWW-Authenticate": "Bearer"},
)
def create_token(user: User, expires_delta: Optional[timedelta] = None):
expire = datetime.utcnow() + expires_delta or timedelta(minutes=15)
return jwt.encode(
claims={"sub": user.username, "exp": expire},
key=SECRET_KEY,
algorithm=ALGORITHM
)
@app.post("/webui/login")
async def login_get_token(form_data: OAuth2PasswordRequestForm = Depends()):
user: User = get_user(form_data.username)
if not user or user.password != form_data.password:
raise form_exception
access_token = create_token(user=user, expires_delta=timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES))
return {"access_token": access_token, "token_type": "bearer"}
credentials_exception = HTTPException(
status_code=status.HTTP_401_UNAUTHORIZED,
detail="Could not validate credentials",
headers={"WWW-Authenticate": "Bearer"},
)
def token_to_user(token: str = Depends(oauth2_scheme)):
try:
payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
username, expire = payload.get("sub"), payload.get("exp")
user = get_user(username)
if user is None:
raise JWTError
except JWTError:
raise credentials_exception
return user
if __name__ == '__main__':
import uvicorn
uvicorn.run(app, host="127.0.0.1", port=8080)