#!/usr/bin/env python # -*- coding:utf-8 -*- # project: 3月 # author: liuyu # date: 2020/3/8 import uuid import string import random import time from django.core.cache import cache from fir_ser.settings import CACHE_KEY_TEMPLATE ''' user = cache.get(token) delta = datetime.timedelta(weeks=2) - delta cache.set(token_obj.key, token_obj.user, min(delta.total_seconds(), 3600 * 24 * 7)) ''' class DownloadToken(object): def make_token(self, release_id, time_limit=60, key='', force_new=False): token_key = "_".join([key.lower(), CACHE_KEY_TEMPLATE.get("make_token_key"), release_id]) make_token_key = cache.get(token_key) if make_token_key and not force_new: return make_token_key else: random_str = uuid.uuid1().__str__().split("-")[0:-1] user_ran_str = uuid.uuid5(uuid.NAMESPACE_DNS, release_id).__str__().split("-") user_ran_str.extend(random_str) new_str = "".join(user_ran_str) cache.set(new_str, { "atime": time.time() + time_limit, "data": release_id }, time_limit) cache.set(token_key, new_str, time_limit - 1) return new_str def verify_token(self, token, release_id): try: values = cache.get(token) if values and release_id in values.get("data", None): return True except Exception as e: print(e) return False return False def generateTokenForMedium(medium): if medium == 'email': return generateAlphanumericTokenOfLength(32) elif medium == 'wechat': return 'WeChat' else: return generateNumericTokenOfLength(6) def generateNumericTokenOfLength(length): return "".join([random.choice(string.digits) for _ in range(length)]) def generateAlphanumericTokenOfLength(length): return "".join( [random.choice(string.digits + string.ascii_lowercase + string.ascii_uppercase) for _ in range(length)])