Django——对IP访问频率进行限制

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/qq_37049781/article/details/81740153

REST_FRAMEWORK 配置

对使用 rest_framework 框架的项目来说，可以使用框架的设置来对api的访问频率进行限制

REST_FRAMEWORK = {
     'DEFAULT_PARSER_CLASSES': (
        'rest_framework.parsers.JSONParser',
        'rest_framework.parsers.FormParser',
        'rest_framework.parsers.MultiPartParser',
    ),

    'DEFAULT_AUTHENTICATION_CLASSES': (
        # 'lecare.core.rest_auth.CrossSiteSessionAuthentication',
    ),

    'DEFAULT_PERMISSION_CLASSES': [
        # 'rest_framework.permissions.IsAuthenticated',
        'rest_framework.permissions.AllowAny',
    ],

    'PAGE_SIZE': 20,
    'UNICODE_JSON': False,
    # 'COERCE_DECIMAL_TO_STRING': False,
    # 'EXCEPTION_HANDLER': 'lecare.core.custom_exception_handler.custom_exception_handler',
    'JWT_EXPIRATION_DELTA': datetime.timedelta(hours = 2),
    'JWT_REFRESH_EXPIRATION_DELTA': datetime.timedelta(days = 360),
    'JWT_ALLOW_REFRESH': False,
    'JWT_AUTH_HEADER_PREFIX': 'JWT',
    'JWT_PAYLOAD_HANDLER': 'consumer.jwt_conf.jwt_payload_handler',
    'JWT_RESPONSE_PAYLOAD_HANDLER': 'consumer.jwt_conf.jwt_response_payload_handler',
    'JWT_GET_USER_SECRET_KEY': 'consumer.jwt_conf.jwt_get_secret_key',
    # 'DEFAULT_THROTTLE_CLASSES': (
    #     # 开启匿名用户接口请求频率限制
    #     'rest_framework.throttling.AnonRateThrottle',
    #     # 开启授权用户接口请求频率限制
    #     'rest_framework.throttling.UserRateThrottle'
    # ),
    # 'DEFAULT_THROTTLE_RATES': {
    #     # 频率限制有second, minute, hour, day
    #     # 匿名用户请求频率
    #     'anon': '30/second',
    #     # 授权用户请求频率
    #     'user': '30/second'
    # }
}

使用middleware中间件来限制IP频率

引用于CSDN

import time
from django.utils.deprecation import MiddlewareMixin
MAX_REQUEST_PER_SECOND=2 #每秒访问次数

class RequestBlockingMiddleware(MiddlewareMixin):
    def process_request(self,request):
        now=time.time()
        request_queue = request.session.get('request_queue',[])
        if len(request_queue) < MAX_REQUEST_PER_SECOND:
            request_queue.append(now)
            request.session['request_queue']=request_queue
        else:
            time0=request_queue[0]
            if (now-time0)<1:
                time.sleep(5)
            request_queue.append(time.time())
            request.session['request_queue']=request_queue[1:]

#启用RequestBlocking中间件
IDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'common.middleware.RequestBlockingMiddleware', #在sessions之后，auth之前
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]