今天就跟大家聊聊有关Django中怎么限制访问频率,可能很多人都不太了解,为了让大家更加了解,小编给大家总结了以下内容,希望大家根据这篇文章可以有所收获。
按需网站策划可以根据自己的需求进行定制,网站设计制作、成都网站制作构思过程中功能建设理应排到主要部位公司网站设计制作、成都网站制作的运用实际效果公司网站制作网站建立与制做的实际意义最近做了一个系统由于部分接口需要进行耗时操作,因而不希望用户进行频繁访问,需要进行访问频率限制。如果要自己实现一个访问限制功能相对来说也不会太复杂,并且网上有各种代码可以参考。如果自己不想实现这个代码可以使用 Django Ratelimit 。
Django Ratelimit is a ratelimiting decorator for Django views. /file/tupian/20230213/16288.png?branch=master Code: https://github.com/jsocol/django-ratelimit License: Apache Software License Issues: https://github.com/jsocol/django-ratelimit/issues Documentation: http://django-ratelimit.readthedocs.org/
使用方法也相对来说比较简单:
@ratelimit(key='ip', rate='5/m') def myview(request): # Will be true if the same IP makes more than 5 POST # requests/minute. was_limited = getattr(request, 'limited', False) return HttpResponse() @ratelimit(key='ip', rate='5/m', block=True) def myview(request): # If the same IP makes >5 reqs/min, will raise Ratelimited return HttpResponse() @ratelimit(key='post:username', rate='5/m', method=['GET', 'POST']) def login(request): # If the same username is used >5 times/min, this will be True. # The `username` value will come from GET or POST, determined by the # request method. was_limited = getattr(request, 'limited', False) return HttpResponse() @ratelimit(key='post:username', rate='5/m') @ratelimit(key='post:tenant', rate='5/m') def login(request): # Use multiple keys by stacking decorators. return HttpResponse() @ratelimit(key='get:q', rate='5/m') @ratelimit(key='post:q', rate='5/m') def search(request): # These two decorators combine to form one rate limit: the same search # query can only be tried 5 times a minute, regardless of the request # method (GET or POST) return HttpResponse() @ratelimit(key='ip', rate='4/h') def slow(request): # Allow 4 reqs/hour. return HttpResponse() rate = lambda r: None if request.user.is_authenticated else '100/h' @ratelimit(key='ip', rate=rate) def skipif1(request): # Only rate limit anonymous requests return HttpResponse() @ratelimit(key='user_or_ip', rate='10/s') @ratelimit(key='user_or_ip', rate='100/m') def burst_limit(request): # Implement a separate burst limit. return HttpResponse() @ratelimit(group='expensive', key='user_or_ip', rate='10/h') def expensive_view_a(request): return something_expensive() @ratelimit(group='expensive', key='user_or_ip', rate='10/h') def expensive_view_b(request): # Shares a counter with expensive_view_a return something_else_expensive() @ratelimit(key='header:x-cluster-client-ip') def post(request): # Uses the X-Cluster-Client-IP header value. return HttpResponse() @ratelimit(key=lambda r: r.META.get('HTTP_X_CLUSTER_CLIENT_IP', r.META['REMOTE_ADDR']) def myview(request): # Use `X-Cluster-Client-IP` but fall back to REMOTE_ADDR. return HttpResponse()
不过需要注意如果和django rest framwork一起使用的话,要将Ratelimit 装饰器放到第一行,如下:
@ratelimit(key='user', rate='1/3s', block=True, method=ratelimit.ALL) @api_view(['POST', 'GET']) @csrf_exempt def api_get_level(request):
否则会导致如下的错误信息:
IndexError at /rest-api/level/ tuple index out of range Request Method: GET Request URL: http://192.168.1.195:8006/rest-api/level/ Django Version: 2.2.7 Exception Type: IndexError Exception Value: tuple index out of range Exception Location: F:\PyCharmProjects\server\venv\lib\site-packages\ratelimit\decorators.py in _wrapped, line 23 Python Executable: F:\PyCharmProjects\server\venv\Scripts\python.exe Python Version: 3.7.5 Python Path: ['F:\\PyCharmProjects\\server\\TaichiGameServer', 'I:\\Python37-64\\python37.zip', 'I:\\Python37-64\\DLLs', 'I:\\Python37-64\\lib', 'I:\\Python37-64', 'F:\\PyCharmProjects\\server\\venv', 'F:\\PyCharmProjects\\server\\venv\\lib\\site-packages', 'F:\\PyCharmProjects\\server\\venv\\lib\\site-packages\\setuptools-39.1.0-py3.7.egg'] Server time: Tue, 24 Dec 2019 09:49:01 +0800 Traceback (most recent call last): File "F:\PyCharmProjects\server\venv\lib\site-packages\django\core\handlers\exception.py", line 34, in inner response = get_response(request) File "F:\PyCharmProjects\server\venv\lib\site-packages\django\core\handlers\base.py", line 115, in _get_response response = self.process_exception_by_middleware(e, request) File "F:\PyCharmProjects\server\venv\lib\site-packages\django\core\handlers\base.py", line 113, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File "F:\PyCharmProjects\server\venv\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view return view_func(*args, **kwargs) File "F:\PyCharmProjects\server\venv\lib\site-packages\django\views\generic\base.py", line 71, in view return self.dispatch(request, *args, **kwargs) File "F:\PyCharmProjects\server\venv\lib\site-packages\rest_framework\views.py", line 505, in dispatch response = self.handle_exception(exc) File "F:\PyCharmProjects\server\venv\lib\site-packages\rest_framework\views.py", line 465, in handle_exception self.raise_uncaught_exception(exc) File "F:\PyCharmProjects\server\venv\lib\site-packages\rest_framework\views.py", line 476, in raise_uncaught_exception raise exc File "F:\PyCharmProjects\server\venv\lib\site-packages\rest_framework\views.py", line 502, in dispatch response = handler(request, *args, **kwargs) File "F:\PyCharmProjects\server\venv\lib\site-packages\rest_framework\decorators.py", line 50, in handler return func(*args, **kwargs) File "F:\PyCharmProjects\server\venv\lib\site-packages\django\views\decorators\csrf.py", line 54, in wrapped_view return view_func(*args, **kwargs) File "F:\PyCharmProjects\server\venv\lib\site-packages\ratelimit\decorators.py", line 23, in _wrapped request = args[1] IndexError: tuple index out of range
看完上述内容,你们对Django中怎么限制访问频率有进一步的了解吗?如果还想了解更多知识或者相关内容,请关注创新互联行业资讯频道,感谢大家的支持。
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