Question

我正在尝试运行布谷鸟API。布谷鸟网络在我的系统上运行正常。但是当我尝试使用布谷鸟API时，出现以下错误：

File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1982, in wsgi_app
  response = self.full_dispatch_request()
File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1614, in full_dispatch_request
  rv = self.handle_user_exception(e)
File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1512, in handle_user_exception
  return self.handle_http_exception(e)
File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1471, in handle_http_exception
  return handler(e)
File "/usr/local/lib/python2.7/dist-packages/cuckoo/apps/api.py", line 719, in api_auth_required
  401, "Authentication in the form of an "
File "/usr/local/lib/python2.7/dist-packages/cuckoo/apps/api.py", line 36, in json_error
  r = jsonify(message=message)
File "/usr/local/lib/python2.7/dist-packages/flask/json.py", line 251, in jsonify
  if current_app.config['JSONIFY_PRETTYPRINT_REGULAR'] and not request.is_xhr:
File "/usr/local/lib/python2.7/dist-packages/werkzeug/local.py", line 347, in __getattr__
  return getattr(self._get_current_object(), name)

AttributeError: 'Request' object has no attribute 'is_xhr'

2020-04-02 18:50:39,640 [werkzeug] INFO: 192.168.100.94 - - [02/Apr/2020 18:50:39] "GET / HTTP/1.1" 500 -

我尝试通过添加以下代码来更改api.py：

@app.route("/publish/epoch/end/", methods=['POST'])
def publish():
    #payload = request.form.get('data')
    payload = unquote(request.data.split('=')[1]).replace('+','')
    try:
       `enter code here` data = json.loads(payload)
    except:
        return {'error':'invalid payload'}

    def notify():
        msg = str(time.time())
        for sub in subscriptions[:]:
            sub.put(payload)

    gevent.spawn(notify)
    return "OK"

@app.route('/', methods=['GET', 'POST'])
def index():
    if request.method == 'POST':
        model.save()
        # Failure to return a redirect or render_template
    else:
        return render_template('index.html')

但这对我没有帮助。该问题有什么解决方案？

Answer 1

request.is_xhr 属性自 Werkzeug 0.13 起已弃用，并在 Werkzeug 1.0.0 中移除。使用 Flask <= 0.12.4 和 Werkzeug >=1.0.0 时会出现此错误，因为 Flask 在 1.0.0 版本之前的源代码中使用此属性。您只需升级 Flask (>=1.0.0) 即可解决此问题：

$ pip install -U flask

否则，您也可以将 Werkzeug 降级到 0.16.1：

$ pip install werkzeug==0.16.1

Answer 2

不推荐使用request.is_xhr方法，因为它不可靠。有关为何将其删除的讨论，请参见讨论here和here。

您可能需要将本地版本的Werkzeug固定到与Cuckoo固定版本的Flask（example here）兼容的版本，直到Cuckoo更新到更高版本的Flask。

Answer 3

根据此github issue，另一种选择是在配置文件中禁用JSONIFY_PRETTYPRINT_REGULAR。

class Config:
  # Other configs
  JSONIFY_PRETTYPRINT_REGULAR = False

或

app = Flask(__name__)
app.config['JSONIFY_PRETTYPRINT_REGULAR'] = False

AttributeError：“请求”对象没有属性“ is_xhr”

3 个答案: