You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
93 lines
2.7 KiB
93 lines
2.7 KiB
"""
|
|
安全模块 - JWT认证和密码处理
|
|
"""
|
|
from datetime import datetime, timedelta
|
|
from typing import Optional
|
|
from jose import JWTError, jwt
|
|
import bcrypt
|
|
from fastapi import Depends, HTTPException, status
|
|
from fastapi.security import HTTPBearer, HTTPAuthorizationCredentials
|
|
from sqlalchemy.orm import Session
|
|
|
|
from app.config import settings
|
|
from app.db.session import get_db
|
|
from app.models.user import User
|
|
|
|
security = HTTPBearer()
|
|
|
|
|
|
def verify_password(plain_password: str, hashed_password: str) -> bool:
|
|
"""验证密码"""
|
|
return bcrypt.checkpw(plain_password.encode('utf-8'), hashed_password.encode('utf-8'))
|
|
|
|
|
|
def get_password_hash(password: str) -> str:
|
|
"""获取密码哈希"""
|
|
return bcrypt.hashpw(password.encode('utf-8'), bcrypt.gensalt()).decode('utf-8')
|
|
|
|
|
|
def create_access_token(data: dict, expires_delta: Optional[timedelta] = None) -> str:
|
|
"""创建JWT访问令牌"""
|
|
to_encode = data.copy()
|
|
if expires_delta:
|
|
expire = datetime.utcnow() + expires_delta
|
|
else:
|
|
expire = datetime.utcnow() + timedelta(hours=settings.ACCESS_TOKEN_EXPIRE_HOURS)
|
|
|
|
to_encode.update({"exp": expire})
|
|
encoded_jwt = jwt.encode(to_encode, settings.SECRET_KEY, algorithm=settings.ALGORITHM)
|
|
return encoded_jwt
|
|
|
|
|
|
def decode_token(token: str) -> Optional[dict]:
|
|
"""解码JWT令牌"""
|
|
try:
|
|
payload = jwt.decode(token, settings.SECRET_KEY, algorithms=[settings.ALGORITHM])
|
|
return payload
|
|
except JWTError:
|
|
return None
|
|
|
|
|
|
async def get_current_user(
|
|
credentials: HTTPAuthorizationCredentials = Depends(security),
|
|
db: Session = Depends(get_db)
|
|
) -> User:
|
|
"""获取当前用户"""
|
|
credentials_exception = HTTPException(
|
|
status_code=status.HTTP_401_UNAUTHORIZED,
|
|
detail="无效的认证凭据",
|
|
headers={"WWW-Authenticate": "Bearer"},
|
|
)
|
|
|
|
token = credentials.credentials
|
|
payload = decode_token(token)
|
|
|
|
if payload is None:
|
|
raise credentials_exception
|
|
|
|
username: str = payload.get("sub")
|
|
if username is None:
|
|
raise credentials_exception
|
|
|
|
user = db.query(User).filter(User.username == username).first()
|
|
if user is None:
|
|
raise credentials_exception
|
|
|
|
if not user.is_active:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_403_FORBIDDEN,
|
|
detail="用户已被禁用"
|
|
)
|
|
|
|
return user
|
|
|
|
|
|
async def get_current_active_superuser(current_user: User = Depends(get_current_user)) -> User:
|
|
"""获取当前超级用户"""
|
|
if not current_user.is_superuser:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_403_FORBIDDEN,
|
|
detail="需要超级用户权限"
|
|
)
|
|
return current_user
|