Reduce server load caused by anonymous viewing.

app/controllers/about_controller.rb

@@ -6,15 +6,21 @@ class AboutController < ApplicationController
   before_action :set_instance_presenter, only: [:show, :more, :terms]
 
   def show
+    skip_session! unless user_signed_in?
+
     serializable_resource = ActiveModelSerializers::SerializableResource.new(InitialStatePresenter.new(initial_state_params), serializer: InitialStateSerializer)
     @initial_state_json   = serializable_resource.to_json
   end
 
   def more
+    skip_session! unless user_signed_in?
+
     render layout: 'public'
   end
 
   def terms
+    skip_session! unless user_signed_in?
+
     render layout: 'public'
   end
 

app/controllers/accounts_controller.rb

@@ -11,6 +11,8 @@ def show
     respond_to do |format|
       format.html do
         use_pack 'public'
+        skip_session! unless user_signed_in?
+
         @body_classes      = 'with-modals'
         @pinned_statuses   = []
         @endorsed_accounts = @account.endorsed_accounts.to_a.sample(4)
@@ -31,11 +33,15 @@ def show
       end
 
       format.atom do
+        skip_session!
+
         @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? || entry.status.local_only? }))
       end
 
       format.rss do
+        skip_session!
+
         @statuses = cache_collection(default_statuses.without_reblogs.without_replies.limit(PAGE_SIZE), Status)
         render xml: RSS::AccountSerializer.render(@account, @statuses)
       end

app/controllers/application_controller.rb

@@ -229,5 +229,6 @@ def set_cache_headers
 
   def skip_session!
     request.session_options[:skip] = true
+    expires_in 0, public: true
   end
 end

app/controllers/follower_accounts_controller.rb

@@ -7,6 +7,7 @@ def index
     respond_to do |format|
       format.html do
         use_pack 'public'
+        skip_session! unless user_signed_in?
 
         next if @account.user_hides_network?
 

app/controllers/home_controller.rb

@@ -61,6 +61,8 @@ def initial_state_params
   end
 
   def default_redirect_path
+    skip_session!
+
     if request.path.start_with?('/web')
       new_user_session_path
     elsif single_user_mode?

app/controllers/statuses_controller.rb

@@ -27,6 +27,8 @@ def show
     respond_to do |format|
       format.html do
         use_pack 'public'
+        skip_session! unless user_signed_in?
+
         @body_classes = 'with-modals'
 
         set_ancestors