jumpserver/apps/common/utils/verify_code.py

94 lines
2.6 KiB
Python

from celery import shared_task
from django.conf import settings
from django.core.cache import cache
from django.utils.translation import gettext_lazy as _
from common.exceptions import JMSException
from common.sdk.sms.endpoint import SMS
from common.sdk.sms.exceptions import CodeError, CodeExpired, CodeSendTooFrequently
from common.tasks import send_mail_async
from common.utils import get_logger
from common.utils.random import random_string
logger = get_logger(__file__)
@shared_task(verbose_name=_('Send email'))
def send_async(sender):
sender.gen_and_send()
class SendAndVerifyCodeUtil(object):
KEY_TMPL = 'auth-verify-code-{}'
def __init__(self, target, code=None, key=None, backend='email', timeout=None, **kwargs):
self.code = code
self.target = target
self.backend = backend
self.key = key or self.KEY_TMPL.format(target)
self.timeout = settings.VERIFY_CODE_TTL if timeout is None else timeout
self.other_args = kwargs
def gen_and_send_async(self):
return send_async.delay(self)
def gen_and_send(self):
ttl = self.__ttl()
if ttl > 0:
logger.error('Send sms too frequently, delay {}'.format(ttl))
raise CodeSendTooFrequently(ttl)
try:
if not self.code:
self.code = self.__generate()
self.__send(self.code)
except JMSException:
self.__clear()
raise
def verify(self, code):
right = cache.get(self.key)
if not right:
raise CodeExpired
if right != code:
raise CodeError
self.__clear()
return True
def __clear(self):
cache.delete(self.key)
def __ttl(self):
return cache.ttl(self.key)
def __get_code(self):
return cache.get(self.key)
def __generate(self):
code = random_string(4, lower=False, upper=False)
self.code = code
return code
def __send_with_sms(self):
sms = SMS()
sms.send_verify_code(self.target, self.code)
def __send_with_email(self):
subject = self.other_args.get('subject')
message = self.other_args.get('message')
send_mail_async(subject, message, [self.target], html_message=message)
def __send(self, code):
"""
发送信息的方法,如果有错误直接抛出 api 异常
"""
if self.backend == 'sms':
self.__send_with_sms()
else:
self.__send_with_email()
cache.set(self.key, self.code, self.timeout)
logger.debug(f'Send verify code to {self.target}')