一，环境部署

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1.创建一个django测试项目

二，文档部署

1.下载安装python对应的SDK

使用命令从Github导入完整项目：git clone https://github.com/GeeTeam/gt3-python-sdk.git

手动下载压缩包文件：https://github.com/GeeTeam/gt3-python-sdk/archive/master.zip

2.参数配置

修改请求参数（可选）

名称	说明
user_id	用户标识，若担心用户信息风险，可作预处理(如哈希处理)再提供
client_type	客户端类型，web（pc浏览器），h6（手机浏览器，包括webview），native（原生app），unknown（未知）
ip_address	客户端请求您服务器的ip地址，unknow表示未知

三.代码实现　

SDK：utils>geetest.py

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,JSON_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()

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