Django中的csrf认证实现的原理调用process_view方法检查视图是否被@csrf_exempt(免除csrf认证)-去
Django中的csrf认证实现的原理
调用 process_view 方法
检查视图是否被 @csrf_exempt (免除csrf认证)
- 去请求体或cookie中获取token
情况一(全站使用csrf认证,局部不想使用csrf认证)
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware', # 全站使用csrf认证
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
如果我想让某个请求不通过csrf认证可以这样做
from django.views.decorators.csrf import csrf_exempt
@csrf_exempt # 该函数无需认证
def users(request):
user_list = ['alex','oldboy']
return HttpResponse(json.dumps((user_list)))
情况二(全站不使用csrf认证,局部想使用csrf认证)
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
#'django.middleware.csrf.CsrfViewMiddleware', # 全站不使用csrf认证
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
如果我想让某个请求使用csrf认证可以这样做
from django.views.decorators.csrf import csrf_exempt,csrf_protect
@csrf_protect # 该函数需认证
def users(request):
user_list = ['alex','oldboy']
return HttpResponse(json.dumps((user_list)))
CBV小知识,csrf时需要使用
- @method_decorator(csrf_exempt)
- 在dispatch方法中(单独方法无效)
方式一
from django.views.decorators.csrf import csrf_exempt,csrf_protect
from django.utils.decorators import method_decorator
class StudentsView(View):
@method_decorator(csrf_exempt)
def dispatch(self, request, *args, **kwargs):
return super(StudentsView,self).dispatch(request, *args, **kwargs)
def get(self,request,*args,**kwargs):
print('get方法')
return HttpResponse('GET')
def post(self, request, *args, **kwargs):
return HttpResponse('POST')
def put(self, request, *args, **kwargs):
return HttpResponse('PUT')
def delete(self, request, *args, **kwargs):
return HttpResponse('DELETE')
方式二
from django.views.decorators.csrf import csrf_exempt,csrf_protect
from django.utils.decorators import method_decorator
@method_decorator(csrf_exempt,name='dispatch')
class StudentsView(View):
def get(self,request,*args,**kwargs):
print('get方法')
return HttpResponse('GET')
def post(self, request, *args, **kwargs):
return HttpResponse('POST')
def put(self, request, *args, **kwargs):
return HttpResponse('PUT')
def delete(self, request, *args, **kwargs):
return HttpResponse('DELETE')
总结:
- - 本质,基于反射来实现
- - 流程:路由,view,dispatch(反射)
- - 取消csrf认证(装饰器要加到dispatch方法上且method_decorator装饰)
扩展:
- - csrf
- - 基于中间件的process_view方法
- - 装饰器给单独函数进行设置(认证或无需认证)
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。
django 中间键 csrf认证