File: middleware.py

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from django.http import HttpResponse, StreamingHttpResponse
from django.urls import reverse
from django.utils.deprecation import MiddlewareMixin

from . import urlconf_inner


class ChangeURLconfMiddleware(MiddlewareMixin):
    def process_request(self, request):
        request.urlconf = urlconf_inner.__name__


class NullChangeURLconfMiddleware(MiddlewareMixin):
    def process_request(self, request):
        request.urlconf = None


class ReverseInnerInResponseMiddleware(MiddlewareMixin):
    def process_response(self, *args, **kwargs):
        return HttpResponse(reverse('inner'))


class ReverseOuterInResponseMiddleware(MiddlewareMixin):
    def process_response(self, *args, **kwargs):
        return HttpResponse(reverse('outer'))


class ReverseInnerInStreaming(MiddlewareMixin):
    def process_view(self, *args, **kwargs):
        def stream():
            yield reverse('inner')
        return StreamingHttpResponse(stream())


class ReverseOuterInStreaming(MiddlewareMixin):
    def process_view(self, *args, **kwargs):
        def stream():
            yield reverse('outer')
        return StreamingHttpResponse(stream())