Django中使用极验Geetest滑动验证码过程解析

 import sys import random import json import requests import time from hashlib import md5 if sys.version_info >= (3,): xrange = range VERSION = "3.0.0" class GeetestLib(object): FN_CHALLENGE = "geetest_challenge" FN_VALIDATE = "geetest_validate" FN_SECCODE = "geetest_seccode" GT_STATUS_SESSION_KEY = "gt_server_status" API_URL = "http://api.geetest.com" REGISTER_HANDLER = "/register.php" VALIDATE_HANDLER = "/validate.php" JSON_FORMAT = False def __init__(self, captcha_id, private_key): self.private_key = private_key self.captcha_id = captcha_id self.sdk_version = VERSION self._response_str = "" def pre_process(self, user_id=None,new_captcha=1,JSON_FORMAT=1,client_type="web",ip_address=""): """ 验证初始化预处理. //TO DO arrage the parameter """ status, challenge = self._register(user_id,new_captcha,JS<strong style="color:transparent">来源gaodai#ma#com搞@@代~&码网</strong>ON_FORMAT,client_type,ip_address) self._response_str = self._make_response_format(status, challenge,new_captcha) return status def _register(self, user_id=None,new_captcha=1,JSON_FORMAT=1,client_type="web",ip_address=""): pri_responce = self._register_challenge(user_id,new_captcha,JSON_FORMAT,client_type,ip_address) if pri_responce: if JSON_FORMAT == 1: response_dic = json.loads(pri_responce) challenge = response_dic["challenge"] else: challenge = pri_responce else: challenge=" " if len(challenge) == 32: challenge = self._md5_encode("".join([challenge, self.private_key])) return 1,challenge else: return 0, self._make_fail_challenge() def get_response_str(self): return self._response_str def _make_fail_challenge(self): rnd1 = random.randint(0, 99) rnd2 = random.randint(0, 99) md5_str1 = self._md5_encode(str(rnd1)) md5_str2 = self._md5_encode(str(rnd2)) challenge = md5_str1 + md5_str2[0:2] return challenge def _make_response_format(self, success=1, challenge=None,new_captcha=1): if not challenge: challenge = self._make_fail_challenge() if new_captcha: string_format = json.dumps( {'success': success, 'gt':self.captcha_id, 'challenge': challenge,"new_captcha":True}) else: string_format = json.dumps( {'success': success, 'gt':self.captcha_id, 'challenge': challenge,"new_captcha":False}) return string_format def _register_challenge(self, user_id=None,new_captcha=1,JSON_FORMAT=1,client_type="web",ip_address=""): if user_id: register_url = "{api_url}{handler}?gt={captcha_ID}&user_id={user_id}&json_format={JSON_FORMAT}&client_type={client_type}&ip_address={ip_address}".format( api_url=self.API_URL, handler=self.REGISTER_HANDLER, captcha_ID=self.captcha_id, user_id=user_id,new_captcha=new_captcha,JSON_FORMAT=JSON_FORMAT,client_type=client_type,ip_address=ip_address) else: register_url = "{api_url}{handler}?gt={captcha_ID}&json_format={JSON_FORMAT}&client_type={client_type}&ip_address={ip_address}".format( api_url=self.API_URL, handler=self.REGISTER_HANDLER, captcha_ID=self.captcha_id,new_captcha=new_captcha,JSON_FORMAT=JSON_FORMAT,client_type=client_type,ip_address=ip_address) try: response = requests.get(register_url, timeout=2) if response.status_code == requests.codes.ok: res_string = response.text else: res_string = "" except: res_string = "" return res_string def success_validate(self, challenge, validate, seccode, user_id=None,gt=None,data='',userinfo='',JSON_FORMAT=1): """ 正常模式的二次验证方式.向geetest server 请求验证结果. """ if not self._check_para(challenge, validate, seccode): return 0 if not self._check_result(challenge, validate): return 0 validate_url = "{api_url}{handler}".format( api_url=self.API_URL, handler=self.VALIDATE_HANDLER) query = { "seccode": seccode, "sdk": ''.join( ["python_",self.sdk_version]), "user_id": user_id, "data":data, "timestamp":time.time(), "challenge":challenge, "userinfo":userinfo, "captchaid":gt, "json_format":JSON_FORMAT } backinfo = self._post_values(validate_url, query) if JSON_FORMAT == 1: backinfo = json.loads(backinfo) backinfo = backinfo["seccode"] if backinfo == self._md5_encode(seccode): return 1 else: return 0 def _post_values(self, apiserver, data): response = requests.post(apiserver, data) return response.text def _check_result(self, origin, validate): encodeStr = self._md5_encode(self.private_key + "geetest" + origin) if validate == encodeStr: return True else: return False def failback_validate(self, challenge, validate, seccode): """ failback模式的二次验证方式.在本地对轨迹进行简单的判断返回验证结果. """ if not self._check_para(challenge, validate, seccode): return 0 validate_result = self._failback_check_result( challenge, validate,) return validate_result def _failback_check_result(self,challenge,validate): encodeStr = self._md5_encode(challenge) if validate == encodeStr: return True else: return False def _check_para(self, challenge, validate, seccode): return (bool(challenge.strip()) and bool(validate.strip()) and bool(seccode.strip())) def _md5_encode(self, values): if type(values) == str: values = values.encode() m = md5(values) return m.hexdigest()

 # _*_ coding=utf-8 _*_ import uuid, json from rest_framework.views import APIView from rest_framework.response import Response from api.models import Account, UserToken from django_redis import get_redis_connection from django.http import HttpResponse from api.utils.geetest import GeetestLib # id和key需要在Geetest官网自行申请,示例id不可用 pc_geetest_id = "b46d1900d0a894591916ea94ea91bd2c" pc_geetest_key = "36fc3fe98530eea08dfc6ce76e3d24c4" REDIS_CONN = get_redis_connection('default') class GeetestView(APIView): def get(self, request): user_id = 'test' gt = GeetestLib(pc_geetest_id, pc_geetest_key) status = gt.pre_process(user_id) # 使用session # request.session[gt.GT_STATUS_SESSION_KEY] = status # request.session["user_id"] = user_id # 使用redis REDIS_CONN.set(gt.GT_STATUS_SESSION_KEY, status) REDIS_CONN.set("gt_user_id", user_id) response_str = gt.get_response_str() return HttpResponse(response_str) def post(self, request): # print(request.session.get("user_id")) print(request.META.get("HTTP_AUTHENTICATION")) print(request.data) gt = GeetestLib(pc_geetest_id, pc_geetest_key) challenge = request.data.get(gt.FN_CHALLENGE, '') validate = request.data.get(gt.FN_VALIDATE, '') seccode = request.data.get(gt.FN_SECCODE, '') # 验证username，pwd # status = request.session.get(gt.GT_STATUS_SESSION_KEY) # print(status) # user_id = request.session.get("user_id") # print(user_id) status = REDIS_CONN.get(gt.GT_STATUS_SESSION_KEY) user_id = REDIS_CONN.get("gt_user_id") if status: result = gt.success_validate(challenge, validate, seccode, user_id) else: result = gt.failback_validate(challenge, validate, seccode) result = {"status": "success"} if result else {"status": "fail"} # if result: #   # 证明验证码通过 #   # 判断用户名和密码 # else: #   # 返回验证码错误 return HttpResponse(json.dumps(result))

 path('pc-geetest/register', GeetestView.as_view()), path('pc-geetest/ajax_validate', GeetestView.as_view()),

   <title>Title</title> body { margin: 50px 0; text-align: center; } .inp { border: 1px solid gray; padding: 0 10px; width: 200px; height: 30px; font-size: 18px; } .btn { border: 1px solid gray; width: 100px; height: 30px; font-size: 18px; cursor: pointer; } #embed-captcha { width: 300px; margin: 0 auto; } .show { display: block; } .hide { display: none; } #notice { color: red; } /* 以下遮罩层为demo.用户可自行设计实现 */ #mask { display: none; position: fixed; text-align: center; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.5); overflow: auto; } /* 可自行设计实现captcha的位置大小 */ .popup-mobile { position: relative; } #popup-captcha-mobile { position: fixed; display: none; left: 50%; top: 50%; transform: translate(-50%, -50%); -webkit-transform: translate(-50%, -50%); z-index: 9999; }  <div id="app"> <div class="popup"> <h2>弹出式Demo，使用ajax形式提交二次验证码所需的验证结果值</h2><br><p> <label>用户名：</label></p><br><p> <label>密    码：</label></p><br><div id="popup-captcha"></div></div></div>