133 lines
3.9 KiB
Python
133 lines
3.9 KiB
Python
from django.http import Http404, HttpResponse
|
|
from django.template import engines
|
|
from django.template.response import TemplateResponse
|
|
from django.utils.decorators import (
|
|
async_only_middleware, sync_and_async_middleware, sync_only_middleware,
|
|
)
|
|
|
|
log = []
|
|
|
|
|
|
class BaseMiddleware:
|
|
def __init__(self, get_response):
|
|
self.get_response = get_response
|
|
|
|
def __call__(self, request):
|
|
return self.get_response(request)
|
|
|
|
|
|
class ProcessExceptionMiddleware(BaseMiddleware):
|
|
def process_exception(self, request, exception):
|
|
return HttpResponse('Exception caught')
|
|
|
|
|
|
@async_only_middleware
|
|
class AsyncProcessExceptionMiddleware(BaseMiddleware):
|
|
async def process_exception(self, request, exception):
|
|
return HttpResponse('Exception caught')
|
|
|
|
|
|
class ProcessExceptionLogMiddleware(BaseMiddleware):
|
|
def process_exception(self, request, exception):
|
|
log.append('process-exception')
|
|
|
|
|
|
class ProcessExceptionExcMiddleware(BaseMiddleware):
|
|
def process_exception(self, request, exception):
|
|
raise Exception('from process-exception')
|
|
|
|
|
|
class ProcessViewMiddleware(BaseMiddleware):
|
|
def process_view(self, request, view_func, view_args, view_kwargs):
|
|
return HttpResponse('Processed view %s' % view_func.__name__)
|
|
|
|
|
|
@async_only_middleware
|
|
class AsyncProcessViewMiddleware(BaseMiddleware):
|
|
async def process_view(self, request, view_func, view_args, view_kwargs):
|
|
return HttpResponse('Processed view %s' % view_func.__name__)
|
|
|
|
|
|
class ProcessViewNoneMiddleware(BaseMiddleware):
|
|
def process_view(self, request, view_func, view_args, view_kwargs):
|
|
log.append('processed view %s' % view_func.__name__)
|
|
return None
|
|
|
|
|
|
class ProcessViewTemplateResponseMiddleware(BaseMiddleware):
|
|
def process_view(self, request, view_func, view_args, view_kwargs):
|
|
template = engines['django'].from_string('Processed view {{ view }}{% for m in mw %}\n{{ m }}{% endfor %}')
|
|
return TemplateResponse(request, template, {'mw': [self.__class__.__name__], 'view': view_func.__name__})
|
|
|
|
|
|
class TemplateResponseMiddleware(BaseMiddleware):
|
|
def process_template_response(self, request, response):
|
|
response.context_data['mw'].append(self.__class__.__name__)
|
|
return response
|
|
|
|
|
|
@async_only_middleware
|
|
class AsyncTemplateResponseMiddleware(BaseMiddleware):
|
|
async def process_template_response(self, request, response):
|
|
response.context_data['mw'].append(self.__class__.__name__)
|
|
return response
|
|
|
|
|
|
class LogMiddleware(BaseMiddleware):
|
|
def __call__(self, request):
|
|
response = self.get_response(request)
|
|
log.append((response.status_code, response.content))
|
|
return response
|
|
|
|
|
|
class NoTemplateResponseMiddleware(BaseMiddleware):
|
|
def process_template_response(self, request, response):
|
|
return None
|
|
|
|
|
|
@async_only_middleware
|
|
class AsyncNoTemplateResponseMiddleware(BaseMiddleware):
|
|
async def process_template_response(self, request, response):
|
|
return None
|
|
|
|
|
|
class NotFoundMiddleware(BaseMiddleware):
|
|
def __call__(self, request):
|
|
raise Http404('not found')
|
|
|
|
|
|
class TeapotMiddleware(BaseMiddleware):
|
|
def __call__(self, request):
|
|
response = self.get_response(request)
|
|
response.status_code = 418
|
|
return response
|
|
|
|
|
|
@async_only_middleware
|
|
def async_teapot_middleware(get_response):
|
|
async def middleware(request):
|
|
response = await get_response(request)
|
|
response.status_code = 418
|
|
return response
|
|
|
|
return middleware
|
|
|
|
|
|
@sync_and_async_middleware
|
|
class SyncAndAsyncMiddleware(BaseMiddleware):
|
|
pass
|
|
|
|
|
|
@sync_only_middleware
|
|
class DecoratedTeapotMiddleware(TeapotMiddleware):
|
|
pass
|
|
|
|
|
|
class NotSyncOrAsyncMiddleware(BaseMiddleware):
|
|
"""Middleware that is deliberately neither sync or async."""
|
|
sync_capable = False
|
|
async_capable = False
|
|
|
|
def __call__(self, request):
|
|
return self.get_response(request)
|