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Only cache unauthenticated page views (#117)
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parent
b0929214d5
commit
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6 changed files with 55 additions and 23 deletions
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@ -1,15 +1,11 @@
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from django.utils.decorators import method_decorator
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from django.views.generic import TemplateView
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from core.decorators import per_identity_cache_page
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from users.decorators import identity_required
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from users.models import FollowStates
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@method_decorator(identity_required, name="dispatch")
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@method_decorator(
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per_identity_cache_page("cache_timeout_page_timeline"), name="dispatch"
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)
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class FollowsPage(TemplateView):
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"""
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Shows followers/follows.
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@ -6,13 +6,15 @@ from django.utils.decorators import method_decorator
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from django.views.generic import TemplateView, View
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from activities.models import Post, PostInteraction, PostInteractionStates, PostStates
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from core.decorators import per_identity_cache_page
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from core.decorators import cache_page_by_ap_json
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from core.ld import canonicalise
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from users.decorators import identity_required
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from users.shortcuts import by_handle_or_404
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@method_decorator(per_identity_cache_page("cache_timeout_page_post"), name="dispatch")
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@method_decorator(
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cache_page_by_ap_json("cache_timeout_page_post", public_only=True), name="dispatch"
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)
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class Individual(TemplateView):
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template_name = "activities/post.html"
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@ -5,13 +5,12 @@ from django.utils.decorators import method_decorator
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from django.views.generic import FormView, ListView
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from activities.models import Hashtag, Post, PostInteraction, TimelineEvent
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from core.decorators import per_identity_cache_page
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from core.decorators import cache_page
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from core.models import Config
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from users.decorators import identity_required
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@method_decorator(identity_required, name="dispatch")
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@method_decorator(per_identity_cache_page(), name="dispatch")
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class Home(FormView):
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template_name = "activities/home.html"
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@ -64,7 +63,7 @@ class Home(FormView):
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@method_decorator(
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per_identity_cache_page("cache_timeout_page_timeline"), name="dispatch"
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cache_page("cache_timeout_page_timeline", public_only=True), name="dispatch"
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)
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class Tag(ListView):
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@ -102,7 +101,7 @@ class Tag(ListView):
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@method_decorator(
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per_identity_cache_page("cache_timeout_page_timeline"), name="dispatch"
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cache_page("cache_timeout_page_timeline", public_only=True), name="dispatch"
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)
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class Local(ListView):
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@ -130,9 +129,6 @@ class Local(ListView):
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@method_decorator(identity_required, name="dispatch")
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@method_decorator(
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per_identity_cache_page("cache_timeout_page_timeline"), name="dispatch"
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)
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class Federated(ListView):
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template_name = "activities/federated.html"
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@ -1,34 +1,72 @@
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from collections.abc import Callable
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from functools import partial, wraps
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from typing import ParamSpecArgs, ParamSpecKwargs
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from django.http import HttpRequest
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from django.views.decorators.cache import cache_page as dj_cache_page
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from core.models import Config
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VaryByFunc = Callable[[HttpRequest, ParamSpecArgs, ParamSpecKwargs], str]
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def vary_by_ap_json(request, *args, **kwargs) -> str:
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"""
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Return a cache usable string token that is different based upon Accept
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header.
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"""
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if request.ap_json:
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return "ap_json"
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return "not_ap"
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def vary_by_identity(request, *args, **kwargs) -> str:
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"""
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Return a cache usable string token that is different based upon the
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request.identity
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"""
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if request.identity:
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return f"ident{request.identity.pk}"
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return "identNone"
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def cache_page(
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timeout: int | str = "cache_timeout_page_default",
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*,
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per_identity: bool = False,
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key_prefix: str = "",
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public_only: bool = False,
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vary_by: VaryByFunc | list[VaryByFunc] | None = None,
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):
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"""
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Decorator for views that caches the page result.
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timeout can either be the number of seconds or the name of a SystemOptions
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value.
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If public_only is True, requests with an identity are not cached.
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"""
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_timeout = timeout
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_prefix = key_prefix
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if callable(vary_by):
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vary_by = [vary_by]
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def decorator(function):
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@wraps(function)
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def inner(request, *args, **kwargs):
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prefix = key_prefix
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if per_identity:
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identity_id = request.identity.pk if request.identity else "0"
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prefix = f"{key_prefix or ''}:ident{identity_id}"
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if public_only:
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if request.user.is_authenticated:
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return function(request, *args, **kwargs)
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prefix = [_prefix]
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if isinstance(vary_by, list):
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prefix.extend([vfunc(request, *args, **kwargs) for vfunc in vary_by])
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prefix = "".join(prefix)
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if isinstance(_timeout, str):
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timeout = getattr(Config.system, _timeout)
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else:
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timeout = _timeout
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return dj_cache_page(timeout=timeout, key_prefix=prefix)(function)(
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request, *args, **kwargs
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)
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@ -38,4 +76,4 @@ def cache_page(
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return decorator
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per_identity_cache_page = partial(cache_page, per_identity=True)
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cache_page_by_ap_json = partial(cache_page, vary_by=[vary_by_ap_json])
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@ -18,7 +18,7 @@ def homepage(request):
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return LoggedOutHomepage.as_view()(request)
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@method_decorator(cache_page(), name="dispatch")
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@method_decorator(cache_page(public_only=True), name="dispatch")
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class LoggedOutHomepage(TemplateView):
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template_name = "index.html"
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@ -10,7 +10,7 @@ from django.utils.decorators import method_decorator
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from django.views.generic import FormView, ListView, TemplateView, View
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from activities.models import Post, PostInteraction
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from core.decorators import per_identity_cache_page
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from core.decorators import cache_page, cache_page_by_ap_json
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from core.ld import canonicalise
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from core.models import Config
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from users.decorators import identity_required
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@ -18,7 +18,7 @@ from users.models import Domain, Follow, FollowStates, Identity, IdentityStates
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from users.shortcuts import by_handle_or_404
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@method_decorator(per_identity_cache_page(), name="dispatch")
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@method_decorator(cache_page_by_ap_json(public_only=True), name="dispatch")
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class ViewIdentity(ListView):
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"""
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Shows identity profile pages, and also acts as the Actor endpoint when
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@ -88,7 +88,7 @@ class ViewIdentity(ListView):
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@method_decorator(
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per_identity_cache_page("cache_timeout_identity_feed"), name="__call__"
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cache_page("cache_timeout_identity_feed", public_only=True), name="__call__"
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)
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class IdentityFeed(Feed):
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"""
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