Django+wechatpy接入微信公众平台以及授权登录

Posted 2021-02-17 lin_zone

1. 确定Django环境可以正常运行，环境搭建见：Linux 搭建Nginx+uwsgi+Django环境

2. 安装 wechatpy[cryptography]

   sudo pip3 install wechatpy[cryptography]
   

3. 修改settings.py

   1. 接入微信公众号的连接去掉csrf验证，详情参考：解决Django+Vue前后端分离的跨域问题及关闭csrf验证的后半部分

   2. 在settings.py 加入微信公众号配置

      AppID = \'\'
      AppSecret = \'\'
      Token = \'\'
      

4. 接入

   1. Django接入微信公众号代码

      # wx.view代码
      
      from wechatpy.utils import check_signature
      from back import settings
      from wechatpy.exceptions import InvalidSignatureException
      from django.http import HttpResponse
      from wechatpy import parse_message, create_reply
      from wechatpy.replies import BaseReply
      from wechatpy import WeChatClient
      from wechatpy.oauth import WeChatOAuth
      from django.shortcuts import redirect
      
      import wx.wechat as wx_wechat
      
      
      # 连接微信公众号的方法
      def serve(request):
          # GET 方式用于微信公众平台绑定验证
          if request.method == \'GET\':
              signature = request.GET.get(\'signature\', \'\')
              timestamp = request.GET.get(\'timestamp\', \'\')
              nonce = request.GET.get(\'nonce\', \'\')
              echo_str = request.GET.get(\'echostr\', \'\')
              try:
                  check_signature(settings.Token, signature, timestamp, nonce)
              except InvalidSignatureException:
                  echo_str = \'错误的请求\'
              response = HttpResponse(echo_str)
          else:
      
              msg = parse_message(request.body)
              msg_dict = msg.__dict__[\'_data\']
              # print(msg.id, msg.source, msg.create_time, msg.type, msg.target, msg.time, msg.__dict__[\'_data\'][\'Event\'], \'====\')
              if msg.type == \'text\':
                  pass
              elif msg.type == \'event\':
                  if msg_dict[\'Event\'] == \'subscribe\':
                  		# 关注后 将获取的用户的信息保存到数据库
                      wx_wechat.subscribe(getWxUserInfo(msg.source))
                  elif msg_dict[\'Event\'] == \'unsubscribe\':
                  		# 取关后，将用户的关注状态更改为 未关注
                      wx_wechat.unsubscribe(msg.source)
              else:
                  pass
              response = HttpResponse(\'\', content_type="application/xml")
          return response
      
      
      def getWxClient():
          return WeChatClient(settings.AppID, settings.AppSecret)
      
      
      def getWxUserInfo(openid):
          wxClient = getWxClient()
          wxUserInfo = wxClient.user.get(openid)
          return wxUserInfo
      
      
      def getWeChatOAuth(redirect_url):
          return WeChatOAuth(settings.AppID, settings.AppSecret, redirect_url)
      
      # 定义授权装饰器
      def oauth(method):
          def warpper(request):
              if request.session.get(\'user_info\', None) is None:
                  code = request.GET.get(\'code\', None)
                  wechat_oauth = getWeChatOAuth(request.get_raw_uri())
                  url = wechat_oauth.authorize_url
                  if code:
                      try:
                          wechat_oauth.fetch_access_token(code)
                          user_info = wechat_oauth.get_user_info()
                      except Exception as e:
                          print(str(e))
                          # 这里需要处理请求里包含的 code 无效的情况
                          # abort(403)
                      else:
                          request.session[\'user_info\'] = user_info
                  else:
                      return redirect(url)
      
              return method(request)
          return warpper
      
      @oauth
      def get_wx_user_info(request):
          user_info = request.session.get(\'user_info\')
          return HttpResponse(str(user_info))
      
      

      # wx.url代码
      from django.urls import path
      from . import views
      
      urlpatterns = [
          path(\'wechat/\', views.serve),
      
          path(\'user/info\', views.get_wx_user_info)
      ]
      
      

      这样等后台配置完毕后，就可以通过访问get_wx_user_info方法来获取当前授权登录的用户的信息

   2. 微信后台设置

      1. 参考：接入指南
      2. 微信公众平台后台登录地址
         1. 正式地址
         2. 测试账号地址

如需转载请注明出处：https://www.cnblogs.com/zhuchenglin/p/10755547.html