Improve django.middleware stubs (#2202)

Author: Viicos

django-stubs/middleware/cache.pyi

@@ -1,32 +1,32 @@
-from collections.abc import Callable
 from typing import Any
 
 from django.core.cache import BaseCache
 from django.http.request import HttpRequest
 from django.http.response import HttpResponse, HttpResponseBase
-from django.utils.deprecation import MiddlewareMixin
+from django.utils.deprecation import MiddlewareMixin, _AsyncGetResponseCallable, _GetResponseCallable
 
 class UpdateCacheMiddleware(MiddlewareMixin):
     cache_timeout: float
     key_prefix: str
     cache_alias: str
-    cache: BaseCache
+    @property
+    def cache(self) -> BaseCache: ...
     def process_response(self, request: HttpRequest, response: HttpResponseBase | str) -> HttpResponseBase | str: ...
 
 class FetchFromCacheMiddleware(MiddlewareMixin):
     key_prefix: str
     cache_alias: str
-    cache: BaseCache
+    @property
+    def cache(self) -> BaseCache: ...
     def process_request(self, request: HttpRequest) -> HttpResponse | None: ...
 
 class CacheMiddleware(UpdateCacheMiddleware, FetchFromCacheMiddleware):
     key_prefix: str
     cache_alias: str
     cache_timeout: float
-    cache: BaseCache
     def __init__(
         self,
-        get_response: Callable = ...,
+        get_response: _GetResponseCallable | _AsyncGetResponseCallable,
         cache_timeout: float | None = ...,
         page_timeout: float | None = ...,
         **kwargs: Any,

django-stubs/middleware/gzip.pyi

@@ -1,4 +1,4 @@
-from typing import Any
+from typing import Any, ClassVar
 
 from django.http.request import HttpRequest
 from django.http.response import HttpResponseBase
@@ -7,4 +7,5 @@ from django.utils.deprecation import MiddlewareMixin
 re_accepts_gzip: Any
 
 class GZipMiddleware(MiddlewareMixin):
+    max_random_bytes: ClassVar[int]
     def process_response(self, request: HttpRequest, response: HttpResponseBase) -> HttpResponseBase: ...

scripts/stubtest/allowlist_todo.txt

@@ -1351,11 +1351,6 @@ django.http.request.HttpRequest.readlines
 django.http.request.UploadHandlerList
 django.http.request.parse_accept_header
 django.http.response.StreamingHttpResponse.content
-django.middleware.cache.CacheMiddleware.__init__
-django.middleware.cache.CacheMiddleware.cache
-django.middleware.cache.FetchFromCacheMiddleware.cache
-django.middleware.cache.UpdateCacheMiddleware.cache
-django.middleware.gzip.GZipMiddleware.max_random_bytes
 django.template.EngineHandler.__init__
 django.template.Library.filter_function
 django.template.Library.simple_tag