62 lines
2.2 KiB
Python
62 lines
2.2 KiB
Python
from datetime import datetime, timedelta
|
|
from typing import Optional
|
|
from jose import JWTError, jwt
|
|
from fastapi import HTTPException, Depends
|
|
from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
|
|
import db
|
|
|
|
SECRET_KEY = "your-secret-key-change-in-production"
|
|
ALGORITHM = "HS256"
|
|
ACCESS_TOKEN_EXPIRE_MINUTES = 60 * 24
|
|
|
|
security = HTTPBearer()
|
|
optional_security = HTTPBearer(auto_error=False)
|
|
|
|
import bcrypt
|
|
|
|
# 使用原生 bcrypt 进行密码校验，解决 passlib 与 bcrypt 5.x 的兼容性问题
|
|
def verify_password(plain_password: str, hashed_password: str) -> bool:
|
|
try:
|
|
return bcrypt.checkpw(plain_password.encode('utf-8'), hashed_password.encode('utf-8'))
|
|
except Exception:
|
|
return False
|
|
|
|
# 使用原生 bcrypt 生成密码哈希
|
|
def get_password_hash(password: str) -> str:
|
|
salt = bcrypt.gensalt()
|
|
return bcrypt.hashpw(password.encode('utf-8'), salt).decode('utf-8')
|
|
|
|
def create_access_token(data: dict):
|
|
to_encode = data.copy()
|
|
expire = datetime.utcnow() + timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
|
|
to_encode.update({"exp": expire})
|
|
encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
|
|
return encoded_jwt
|
|
|
|
def get_current_user(credentials: HTTPAuthorizationCredentials = Depends(security)):
|
|
token = credentials.credentials
|
|
try:
|
|
payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
|
|
user_id: int = payload.get("id")
|
|
if user_id is None:
|
|
raise HTTPException(status_code=401, detail="无效的认证信息")
|
|
except JWTError:
|
|
raise HTTPException(status_code=403, detail="登录已过期，请重新登录")
|
|
|
|
user = db.get_user_by_id(user_id)
|
|
if user is None:
|
|
raise HTTPException(status_code=404, detail="用户不存在")
|
|
return user
|
|
|
|
def get_optional_user(credentials: Optional[HTTPAuthorizationCredentials] = Depends(optional_security)):
|
|
if not credentials:
|
|
return None
|
|
try:
|
|
payload = jwt.decode(credentials.credentials, SECRET_KEY, algorithms=[ALGORITHM])
|
|
user_id = payload.get("id")
|
|
if user_id:
|
|
return db.get_user_by_id(user_id)
|
|
except JWTError:
|
|
return None
|
|
return None
|