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django middleware

自定义中间件

位置

文件夹:yourproject/yourapp/middleware
初始化文件夹 middleware建__init__.py
创建文件filter_ip_middleware.py

创建

允许特定ip访问

# filter_ip_middleware.py

from django.http import HttpResponseForbidden

# filter_ip_middleware.py
class FilterIPMiddleware(object):
    # Check if client IP is allowed
    def process_request(self, request):
        allowed_ips = ['192.168.1.1', '192.168.1.108']# Authorized ip's
        ip = request.META.get('REMOTE_ADDR') # Get client IP
        if ip not in allowed_ips:
            return HttpResponseForbidden()# If user is not allowed raise Error

       # If IP is allowed we don't do anything
        return None

设置

在settings.py中设置

MIDDLEWARE_CLASSES = (
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
     # Above are django standard middlewares

     # Now we add here our custom middleware
     'yourapp.middleware.filter_ip_middleware.FilterIPMiddleware'
)

说明

方法process_request是必须的，如果返回异常，直接返回;如果正常，返回None，交给下一个中间件处理。

参考1 自定义中间件
参考2 返回禁止访问

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