jumpserver/apps/authentication/utils.py

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# -*- coding: utf-8 -*-
#
import base64
from Crypto.PublicKey import RSA
from Crypto.Cipher import PKCS1_v1_5
from Crypto import Random
from django.contrib.auth import authenticate
from common.utils import get_logger
from . import errors
logger = get_logger(__file__)
def gen_key_pair():
""" 生成加密key
用于登录页面提交用户名/密码时,对密码进行加密(前端)/解密(后端)
"""
random_generator = Random.new().read
rsa = RSA.generate(1024, random_generator)
rsa_private_key = rsa.exportKey().decode()
rsa_public_key = rsa.publickey().exportKey().decode()
return rsa_private_key, rsa_public_key
def rsa_decrypt(cipher_text, rsa_private_key=None):
""" 解密登录密码 """
if rsa_private_key is None:
# rsa_private_key 为 None可以能是API请求认证不需要解密
return cipher_text
key = RSA.importKey(rsa_private_key)
cipher = PKCS1_v1_5.new(key)
message = cipher.decrypt(base64.b64decode(cipher_text.encode()), 'error').decode()
return message
def check_user_valid(**kwargs):
password = kwargs.pop('password', None)
public_key = kwargs.pop('public_key', None)
username = kwargs.pop('username', None)
request = kwargs.get('request')
# 获取解密密钥,对密码进行解密
rsa_private_key = request.session.get('rsa_private_key')
if rsa_private_key is not None:
try:
password = rsa_decrypt(password, rsa_private_key)
except Exception as e:
logger.error(e, exc_info=True)
logger.error('Need decrypt password => {}'.format(password))
return None, errors.reason_password_decrypt_failed
user = authenticate(request, username=username,
password=password, public_key=public_key)
if not user:
return None, errors.reason_password_failed
elif user.is_expired:
return None, errors.reason_user_inactive
elif not user.is_active:
return None, errors.reason_user_inactive
elif user.password_has_expired:
return None, errors.reason_password_expired
return user, ''