def get_wxcode(request):
  """
  公众号扫码登陆
  获取带参数二维码

  参数：

    返回值：
       {
   "formError": {},
   "delta_time": 951,
   "errorCode": 0,
   "params": {
   "scene_id": "512"
   },
   "message": "",
   "data": {
   "url": "https://mp.weixin.qq.com/cgi-bin/showqrcode",
   "sceneid": "2500", # 唯一扫码场景值，用来判断哪个用户进行扫码登陆
   "type": "get"
   }
  }
  """
  try:
    scene_id = str(int((time.time())))
    access_token = get_access_token()
    if access_token:
      user_info_url = u'https://api.weixin.qq.com/cgi-bin/qrcode/create"scene": {"scene_str": scene_id}},
      }
      params = json.dumps(params)
      userinfo = requests.post(user_info_url, data=params).json()
      ticket = userinfo['ticket']
      # except:
      #   raise FieldError("ticket", "ticket获取异常")
      data = {
        "type": 'get',
        'url': 'https://mp.weixin.qq.com/cgi-bin/showqrcode"微信", "微信公共号正在维护中，给你带来的不便，敬请原谅")
  except:
    raise FieldError("微信", "微信公共号正在维护中，给你带来的不便，敬请原谅")

def get_public_wx_status(request):
  '''
  参数
   scene_id 场景值   必传   判断是哪个用户 扫码
  轮询查看 公众号 是否扫码关注，扫码关注是否绑定手机号

  :param request:
  :return:
    {
   "formError": {},
   "delta_time": 713,
   "errorCode": 0,
   "params": {},
   "message": "",
   "data": {
   "focus_state": 1,  # 微信关注的状态 1 已扫码关注  0 未关注
   "state": 0  # 关注后，是否绑定手机号 0 未绑定 1 已绑定，直接登录
   }
  }
  '''


  post_info = request.POST
  scene_id = post_info.get("scene_id", '')
  if not scene_id:
    raise FieldError('scene_id','scene_id不能为空')
  openid = redis_conn.get(scene_id)
  if openid == None:
    return {'focus_state': 0}
  else:
    uid = redis_conn.get(str(openid))
    if uid == None:
      return {'focus_state':0}
    else:
      user = UserWxInfo.objects.get(openid=openid)
      if user.focus_state == 1:
        state = 1
        _ = User.objects.get(uid=user.uid)
        request.apisession["uid"] = user.uid
        request.apisession["pwd_updatetime"] = _.pwd_updatetime
        ip = ''
        if request.META.has_key('HTTP_X_FORWARD_FOR'):
          ip = request.META['HTTP_X_FORWARD_FOR']
        else:
          ip = request.META['REMOTE_ADDR']
        UserLoginLog(uid=user.uid, ip=ip).save()

      else:
        state = 0
      return {
        'focus_state':1,
        'state':state
      }