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4 years ago
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# Generated by Django 3.0.3 on 2021-03-24 17:51 |
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from django.db import migrations, models |
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class Migration(migrations.Migration): |
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dependencies = [ |
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('api', '0023_auto_20210316_1602'), |
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] |
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operations = [ |
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migrations.AlterField( |
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model_name='userinfo', |
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name='download_times', |
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field=models.PositiveIntegerField(default=0, verbose_name='可用下载次数,需要用户充值'), |
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), |
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] |
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import random |
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import json |
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import requests |
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import hmac |
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import hashlib |
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from .geetest_lib_result import GeetestLibResult |
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# sdk lib包，核心逻辑。 |
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class GeetestLib: |
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IS_DEBUG = False # 调试开关，是否输出调试日志 |
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API_URL = "http://api.geetest.com" |
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REGISTER_URL = "/register.php" |
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VALIDATE_URL = "/validate.php" |
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JSON_FORMAT = "1" |
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NEW_CAPTCHA = True |
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HTTP_TIMEOUT_DEFAULT = 5 # 单位：秒 |
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VERSION = "python-flask:3.1.1" |
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GEETEST_CHALLENGE = "geetest_challenge" # 极验二次验证表单传参字段 chllenge |
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GEETEST_VALIDATE = "geetest_validate" # 极验二次验证表单传参字段 validate |
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GEETEST_SECCODE = "geetest_seccode" # 极验二次验证表单传参字段 seccode |
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def __init__(self, geetest_id, geetest_key): |
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self.geetest_id = geetest_id |
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self.geetest_key = geetest_key |
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self.libResult = GeetestLibResult() |
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def gtlog(self, message): |
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if self.IS_DEBUG: |
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print("gtlog: " + message) |
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# 验证初始化 |
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def register(self, digestmod, param_dict): |
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self.gtlog("register(): 开始验证初始化, digestmod={0}.".format(digestmod)) |
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origin_challenge = self.request_register(param_dict) |
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self.build_register_result(origin_challenge, digestmod) |
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self.gtlog("register(): 验证初始化, lib包返回信息={0}.".format(self.libResult)) |
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return self.libResult |
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def request_register(self, param_dict): |
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param_dict.update({"gt": self.geetest_id, "sdk": self.VERSION, "json_format": self.JSON_FORMAT}) |
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register_url = self.API_URL + self.REGISTER_URL |
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self.gtlog("requestRegister(): 验证初始化, 向极验发送请求, url={0}, params={1}.".format(register_url, param_dict)) |
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try: |
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res = requests.get(register_url, params=param_dict, timeout=self.HTTP_TIMEOUT_DEFAULT) |
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res_body = res.text if res.status_code == requests.codes.ok else "" |
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self.gtlog("requestRegister(): 验证初始化, 与极验网络交互正常, 返回码={0}, 返回body={1}.".format(res.status_code, res_body)) |
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res_dict = json.loads(res_body) |
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origin_challenge = res_dict["challenge"] |
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except Exception as e: |
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self.gtlog("requestRegister(): 验证初始化, 请求异常，后续流程走宕机模式, " + repr(e)) |
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origin_challenge = "" |
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return origin_challenge |
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def local_init(self): |
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self.build_register_result("", "") |
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self.gtlog("local_init(): bypass当前状态为fail，后续流程将进入宕机模式, " + self.libResult.data) |
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return self.libResult |
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# 构建验证初始化返回数据 |
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def build_register_result(self, origin_challenge, digestmod): |
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# origin_challenge为空或者值为0代表失败 |
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if not origin_challenge or origin_challenge == "0": |
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# 本地随机生成32位字符串 |
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challenge = "".join(random.sample('abcdefghijklmnopqrstuvwxyz0123456789', 32)) |
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data = json.dumps( |
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{"success": 0, "gt": self.geetest_id, "challenge": challenge, "new_captcha": self.NEW_CAPTCHA}) |
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self.libResult.set_all(0, data, "bypass当前状态为fail，后续流程走宕机模式") |
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else: |
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if digestmod == "md5": |
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challenge = self.md5_encode(origin_challenge + self.geetest_key) |
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elif digestmod == "sha256": |
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challenge = self.sha256_endode(origin_challenge + self.geetest_key) |
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elif digestmod == "hmac-sha256": |
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challenge = self.hmac_sha256_endode(origin_challenge, self.geetest_key) |
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else: |
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challenge = self.md5_encode(origin_challenge + self.geetest_key) |
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data = json.dumps( |
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{"success": 1, "gt": self.geetest_id, "challenge": challenge, "new_captcha": self.NEW_CAPTCHA}) |
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self.libResult.set_all(1, data, "") |
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# 正常流程下（即验证初始化成功），二次验证 |
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def successValidate(self, challenge, validate, seccode, param_dict={}): |
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self.gtlog( |
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"successValidate(): 开始二次验证 正常模式, challenge={0}, validate={1}, seccode={2}.".format(challenge, validate, |
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seccode)) |
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if not self.check_param(challenge, validate, seccode): |
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self.libResult.set_all(0, "", "正常模式，本地校验，参数challenge、validate、seccode不可为空") |
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else: |
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response_seccode = self.requestValidate(challenge, validate, seccode, param_dict) |
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if not response_seccode: |
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self.libResult.set_all(0, "", "请求极验validate接口失败") |
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elif response_seccode == "false": |
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self.libResult.set_all(0, "", "极验二次验证不通过") |
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else: |
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self.libResult.set_all(1, "", "") |
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self.gtlog("successValidate(): 二次验证 正常模式, lib包返回信息={0}.".format(self.libResult)) |
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return self.libResult |
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# 异常流程下（即验证初始化失败，宕机模式），二次验证 |
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# 注意：由于是宕机模式，初衷是保证验证业务不会中断正常业务，所以此处只作简单的参数校验，可自行设计逻辑。 |
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def failValidate(self, challenge, validate, seccode): |
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self.gtlog( |
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"failValidate(): 开始二次验证 宕机模式, challenge={0}, validate={1}, seccode={2}.".format(challenge, validate, |
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seccode)) |
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if not self.check_param(challenge, validate, seccode): |
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self.libResult.set_all(0, "", "宕机模式，本地校验，参数challenge、validate、seccode不可为空.") |
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else: |
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self.libResult.set_all(1, "", "") |
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self.gtlog("failValidate(): 二次验证 宕机模式, lib包返回信息={0}.".format(self.libResult)) |
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return self.libResult |
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# 向极验发送二次验证的请求，POST方式 |
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def requestValidate(self, challenge, validate, seccode, param_dict): |
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param_dict.update( |
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{"seccode": seccode, "json_format": self.JSON_FORMAT, "challenge": challenge, "sdk": self.VERSION, |
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"captchaid": self.geetest_id}) |
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validate_url = self.API_URL + self.VALIDATE_URL |
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self.gtlog("requestValidate(): 二次验证 正常模式, 向极验发送请求, url={0}, params={1}.".format(validate_url, param_dict)) |
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try: |
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res = requests.post(validate_url, data=param_dict, timeout=self.HTTP_TIMEOUT_DEFAULT) |
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res_body = res.text if res.status_code == requests.codes.ok else "" |
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self.gtlog( |
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"requestValidate(): 二次验证 正常模式, 与极验网络交互正常, 返回码={0}, 返回body={1}.".format(res.status_code, res_body)) |
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res_dict = json.loads(res_body) |
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seccode = res_dict["seccode"] |
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except Exception as e: |
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self.gtlog("requestValidate(): 二次验证 正常模式, 请求异常, " + repr(e)) |
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seccode = "" |
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return seccode |
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# 校验二次验证的三个参数，校验通过返回true，校验失败返回false |
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def check_param(self, challenge, validate, seccode): |
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return not ( |
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challenge is None or challenge.isspace() or validate is None or validate.isspace() or seccode is None or seccode.isspace()) |
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def md5_encode(self, value): |
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md5 = hashlib.md5() |
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md5.update(value.encode("utf-8")) |
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return md5.hexdigest() |
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def sha256_endode(self, value): |
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sha256 = hashlib.sha256() |
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sha256.update(value.encode("utf-8")) |
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return sha256.hexdigest() |
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def hmac_sha256_endode(self, value, key): |
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return hmac.new(key.encode("utf-8"), value.encode("utf-8"), digestmod=hashlib.sha256).hexdigest() |
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# sdk lib包的返回结果信息。 |
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class GeetestLibResult: |
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def __init__(self): |
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self.status = 0 # 成功失败的标识码，1表示成功，0表示失败 |
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self.data = '' # 返回数据，json格式 |
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self.msg = '' # 备注信息，如异常信息等 |
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def set_all(self, status, data, msg): |
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self.status = status |
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self.data = data |
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self.msg = msg |
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def __str__(self): |
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return "GeetestLibResult{{status={0}, data={1}, msg={2}}}".format(self.status, self.data, self.msg) |
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#!/usr/bin/env python |
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# -*- coding:utf-8 -*- |
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# project: 3月 |
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# author: NinEveN |
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# date: 2021/3/25 |
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import requests |
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import json |
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import logging |
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from django.core.cache import cache as redis_connect |
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from fir_ser.settings import GEETEST_ID, GEETEST_KEY, GEETEST_BYPASS_URL, \ |
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GEETEST_BYPASS_STATUS_KEY |
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from api.utils.geetest.geetest_lib import GeetestLib |
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logger = logging.getLogger(__file__) |
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# 发送bypass请求，获取bypass状态并进行缓存（如何缓存可根据自身情况合理选择,这里是使用redis进行缓存） |
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def check_bypass_status(): |
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response = "" |
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params = {"gt": GEETEST_ID} |
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try: |
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response = requests.get(url=GEETEST_BYPASS_URL, params=params) |
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except Exception as e: |
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logger.error("check_bypass_status failed Exception:%s" % e) |
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if response and response.status_code == 200: |
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logger.debug("check_bypass_status success %s" % response.content) |
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bypass_status_str = response.content.decode("utf-8") |
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bypass_status = json.loads(bypass_status_str).get("status") |
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redis_connect.set(GEETEST_BYPASS_STATUS_KEY, bypass_status) |
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else: |
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bypass_status = "fail" |
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redis_connect.set(GEETEST_BYPASS_STATUS_KEY, bypass_status) |
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logger.debug("bypass状态已经获取并存入redis，当前状态为 {}".format(bypass_status)) |
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# 从缓存中取出当前缓存的bypass状态(success/fail) |
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def get_bypass_cache(): |
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bypass_status_cache = redis_connect.get(GEETEST_BYPASS_STATUS_KEY) |
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if not bypass_status_cache: |
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bypass_status_cache = 'fail' |
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return bypass_status_cache |
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# 验证初始化接口，GET请求 |
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def first_register(user_id, ip_address): |
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# 必传参数 |
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# digestmod 此版本sdk可支持md5、sha256、hmac-sha256，md5之外的算法需特殊配置的账号，联系极验客服 |
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# 自定义参数,可选择添加 |
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# user_id 客户端用户的唯一标识，确定用户的唯一性；作用于提供进阶数据分析服务，可在register和validate接口传入，不传入也不影响验证服务的使用；若担心用户信息风险，可作预处理(如哈希处理)再提供到极验 |
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# client_type 客户端类型，web：电脑上的浏览器；h5：手机上的浏览器，包括移动应用内完全内置的web_view；native：通过原生sdk植入app应用的方式；unknown：未知 |
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# ip_address 客户端请求sdk服务器的ip地址 |
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bypass_status = get_bypass_cache() |
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gt_lib = GeetestLib(GEETEST_ID, GEETEST_KEY) |
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digestmod = "md5" |
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param_dict = {"digestmod": digestmod, "user_id": user_id, "client_type": "web", "ip_address": ip_address} |
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if bypass_status == "success": |
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result = gt_lib.register(digestmod, param_dict) |
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else: |
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result = gt_lib.local_init() |
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# 注意，不要更改返回的结构和值类型 |
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return json.loads(result.data) |
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# 二次验证接口，POST请求 |
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def second_validate(rdata): |
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challenge = rdata.get(GeetestLib.GEETEST_CHALLENGE, None) |
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validate = rdata.get(GeetestLib.GEETEST_VALIDATE, None) |
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seccode = rdata.get(GeetestLib.GEETEST_SECCODE, None) |
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bypass_status = get_bypass_cache() |
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gt_lib = GeetestLib(GEETEST_ID, GEETEST_KEY) |
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if bypass_status == "success": |
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result = gt_lib.successValidate(challenge, validate, seccode) |
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else: |
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result = gt_lib.failValidate(challenge, validate, seccode) |
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# 注意，不要更改返回的结构和值类型 |
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if result.status == 1: |
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response = {"result": "success", "version": GeetestLib.VERSION} |
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else: |
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response = {"result": "fail", "version": GeetestLib.VERSION, "msg": result.msg} |
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logger.info("geetest second_validate info %s" % response) |
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return response |
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#!/usr/bin/env python |
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# -*- coding:utf-8 -*- |
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# project: 3月 |
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# author: NinEveN |
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# date: 2021/3/25 |
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from rest_framework.throttling import SimpleRateThrottle |
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import hashlib |
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from rest_framework.exceptions import Throttled |
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class VisitShortThrottle(SimpleRateThrottle): |
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"""短连接用户访问频率限制1""" |
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scope = "ShortAccessUser1" |
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def get_cache_key(self, request, view): |
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return 'short_access_' + self.get_ident(request) + hashlib.md5( |
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request.META.get('HTTP_USER_AGENT', '').encode("utf-8")).hexdigest() |
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class InstallShortThrottle(SimpleRateThrottle): |
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"""短连接用户访问频率限制2""" |
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scope = "ShortAccessUser2" |
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def get_cache_key(self, request, view): |
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return 'short_access_' + self.get_ident(request) |
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class LoginUserThrottle(SimpleRateThrottle): |
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"""登录用户访问频率限制""" |
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scope = "LoginUser" |
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def get_cache_key(self, request, view): |
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if hasattr(request.user, 'uid'): |
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return request.user.uid |
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else: |
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self.get_ident(request) |
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class VisitRegister1Throttle(SimpleRateThrottle): |
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"""注册或者登陆限速1""" |
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scope = "RegisterUser1" |
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def get_cache_key(self, request, view): |
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return 'login_register_' + self.get_ident(request) |
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class VisitRegister2Throttle(SimpleRateThrottle): |
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"""注册或者登陆限速2""" |
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scope = "RegisterUser2" |
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def get_cache_key(self, request, view): |
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return 'login_register_' + self.get_ident(request) |
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class GetAuthC1Throttle(SimpleRateThrottle): |
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"""注册或者登陆限速1""" |
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scope = "GetAuthC1" |
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def get_cache_key(self, request, view): |
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return 'get_auth_' + self.get_ident(request) |
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class GetAuthC2Throttle(SimpleRateThrottle): |
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"""注册或者登陆限速2""" |
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scope = "GetAuthC2" |
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def get_cache_key(self, request, view): |
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return 'get_auth_' + self.get_ident(request) |
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Reference in new issue