Reduce server load caused by anonymous viewing. (#9059)

Do not start a session if the current user is not logged in for public-facing pages.

Mark pages that don't care about sessions as publicly cacheable.

Keep the max age as 0 so proxies and browsers will still try to retrieve an updated version but can still fall back to the stale version if the site is down or too slow.

Fixes #9035.
This commit is contained in:
Ben Lubar 2019-03-17 09:39:25 -05:00 committed by Eugen Rochko
parent a20354a20b
commit c3d1594576
4 changed files with 17 additions and 2 deletions

View file

@ -10,6 +10,8 @@ class AccountsController < ApplicationController
def show
respond_to do |format|
format.html do
mark_cacheable! unless user_signed_in?
@body_classes = 'with-modals'
@pinned_statuses = []
@endorsed_accounts = @account.endorsed_accounts.to_a.sample(4)
@ -30,17 +32,21 @@ class AccountsController < ApplicationController
end
format.atom do
mark_cacheable!
@entries = @account.stream_entries.where(hidden: false).with_includes.paginate_by_max_id(PAGE_SIZE, params[:max_id], params[:since_id])
render xml: OStatus::AtomSerializer.render(OStatus::AtomSerializer.new.feed(@account, @entries.reject { |entry| entry.status.nil? }))
end
format.rss do
mark_cacheable!
@statuses = cache_collection(default_statuses.without_reblogs.without_replies.limit(PAGE_SIZE), Status)
render xml: RSS::AccountSerializer.render(@account, @statuses)
end
format.json do
skip_session!
mark_cacheable!
render_cached_json(['activitypub', 'actor', @account], content_type: 'application/activity+json') do
ActiveModelSerializers::SerializableResource.new(@account, serializer: ActivityPub::ActorSerializer, adapter: ActivityPub::Adapter)

View file

@ -151,6 +151,11 @@ class ApplicationController < ActionController::Base
response.headers['Vary'] = 'Accept'
end
def mark_cacheable!
skip_session!
expires_in 0, public: true
end
def skip_session!
request.session_options[:skip] = true
end

View file

@ -6,6 +6,8 @@ class FollowerAccountsController < ApplicationController
def index
respond_to do |format|
format.html do
mark_cacheable! unless user_signed_in?
next if @account.user_hides_network?
follows

View file

@ -27,6 +27,8 @@ class StatusesController < ApplicationController
def show
respond_to do |format|
format.html do
mark_cacheable! unless user_signed_in?
@body_classes = 'with-modals'
set_ancestors
@ -36,7 +38,7 @@ class StatusesController < ApplicationController
end
format.json do
skip_session! unless @stream_entry.hidden?
mark_cacheable! unless @stream_entry.hidden?
render_cached_json(['activitypub', 'note', @status], content_type: 'application/activity+json', public: !@stream_entry.hidden?) do
ActiveModelSerializers::SerializableResource.new(@status, serializer: ActivityPub::NoteSerializer, adapter: ActivityPub::Adapter)