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This commit is contained in:
ladeng07
2022-05-06 15:45:57 +08:00
parent 12f390949b
commit 51552904f9
2347 changed files with 120102 additions and 53549 deletions
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venv/Lib/site-packages/django/middleware/cache.py
+22 -30
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@@ -46,10 +46,7 @@ More details about how the caching works:
from django.conf import settings
from django.core.cache import DEFAULT_CACHE_ALIAS, caches
from django.utils.cache import (
get_cache_key,
get_max_age,
has_vary_header,
learn_cache_key,
get_cache_key, get_max_age, has_vary_header, learn_cache_key,
patch_response_headers,
)
from django.utils.deprecation import MiddlewareMixin
@@ -64,8 +61,9 @@ class UpdateCacheMiddleware(MiddlewareMixin):
UpdateCacheMiddleware must be the first piece of middleware in MIDDLEWARE
so that it'll get called last during the response phase.
"""
def __init__(self, get_response):
# RemovedInDjango40Warning: when the deprecation ends, replace with:
# def __init__(self, get_response):
def __init__(self, get_response=None):
super().__init__(get_response)
self.cache_timeout = settings.CACHE_MIDDLEWARE_SECONDS
self.page_timeout = None
@@ -74,7 +72,7 @@ class UpdateCacheMiddleware(MiddlewareMixin):
self.cache = caches[self.cache_alias]
def _should_update_cache(self, request, response):
return hasattr(request, "_cache_update_cache") and request._cache_update_cache
return hasattr(request, '_cache_update_cache') and request._cache_update_cache
def process_response(self, request, response):
"""Set the cache, if needed."""
@@ -87,15 +85,11 @@ class UpdateCacheMiddleware(MiddlewareMixin):
# Don't cache responses that set a user-specific (and maybe security
# sensitive) cookie in response to a cookie-less request.
if (
not request.COOKIES
and response.cookies
and has_vary_header(response, "Cookie")
):
if not request.COOKIES and response.cookies and has_vary_header(response, 'Cookie'):
return response
# Don't cache a response with 'Cache-Control: private'
if "private" in response.get("Cache-Control", ()):
if 'private' in response.get('Cache-Control', ()):
return response
# Page timeout takes precedence over the "max-age" and the default
@@ -112,10 +106,8 @@ class UpdateCacheMiddleware(MiddlewareMixin):
return response
patch_response_headers(response, timeout)
if timeout and response.status_code == 200:
cache_key = learn_cache_key(
request, response, timeout, self.key_prefix, cache=self.cache
)
if hasattr(response, "render") and callable(response.render):
cache_key = learn_cache_key(request, response, timeout, self.key_prefix, cache=self.cache)
if hasattr(response, 'render') and callable(response.render):
response.add_post_render_callback(
lambda r: self.cache.set(cache_key, r, timeout)
)
@@ -132,8 +124,9 @@ class FetchFromCacheMiddleware(MiddlewareMixin):
FetchFromCacheMiddleware must be the last piece of middleware in MIDDLEWARE
so that it'll get called last during the request phase.
"""
def __init__(self, get_response):
# RemovedInDjango40Warning: when the deprecation ends, replace with:
# def __init__(self, get_response):
def __init__(self, get_response=None):
super().__init__(get_response)
self.key_prefix = settings.CACHE_MIDDLEWARE_KEY_PREFIX
self.cache_alias = settings.CACHE_MIDDLEWARE_ALIAS
@@ -144,21 +137,19 @@ class FetchFromCacheMiddleware(MiddlewareMixin):
Check whether the page is already cached and return the cached
version if available.
"""
if request.method not in ("GET", "HEAD"):
if request.method not in ('GET', 'HEAD'):
request._cache_update_cache = False
return None # Don't bother checking the cache.
# try and get the cached GET response
cache_key = get_cache_key(request, self.key_prefix, "GET", cache=self.cache)
cache_key = get_cache_key(request, self.key_prefix, 'GET', cache=self.cache)
if cache_key is None:
request._cache_update_cache = True
return None # No cache information available, need to rebuild.
response = self.cache.get(cache_key)
# if it wasn't found and we are looking for a HEAD, try looking just for that
if response is None and request.method == "HEAD":
cache_key = get_cache_key(
request, self.key_prefix, "HEAD", cache=self.cache
)
if response is None and request.method == 'HEAD':
cache_key = get_cache_key(request, self.key_prefix, 'HEAD', cache=self.cache)
response = self.cache.get(cache_key)
if response is None:
@@ -177,8 +168,9 @@ class CacheMiddleware(UpdateCacheMiddleware, FetchFromCacheMiddleware):
Also used as the hook point for the cache decorator, which is generated
using the decorator-from-middleware utility.
"""
def __init__(self, get_response, cache_timeout=None, page_timeout=None, **kwargs):
# RemovedInDjango40Warning: when the deprecation ends, replace with:
# def __init__(self, get_response, cache_timeout=None, page_timeout=None, **kwargs):
def __init__(self, get_response=None, cache_timeout=None, page_timeout=None, **kwargs):
super().__init__(get_response)
# We need to differentiate between "provided, but using default value",
# and "not provided". If the value is provided using a default, then
@@ -186,14 +178,14 @@ class CacheMiddleware(UpdateCacheMiddleware, FetchFromCacheMiddleware):
# we need to use middleware defaults.
try:
key_prefix = kwargs["key_prefix"]
key_prefix = kwargs['key_prefix']
if key_prefix is None:
key_prefix = ""
key_prefix = ''
self.key_prefix = key_prefix
except KeyError:
pass
try:
cache_alias = kwargs["cache_alias"]
cache_alias = kwargs['cache_alias']
if cache_alias is None:
cache_alias = DEFAULT_CACHE_ALIAS
self.cache_alias = cache_alias