Add ActivityPub secure mode (#11269)

* Add HTTP signature requirement for served ActivityPub resources

* Change `SECURE_MODE` to `AUTHORIZED_FETCH`

* Add 'Signature' to 'Vary' header and improve code style

* Improve code style by adding `public_fetch_mode?` method

1 files changed, 2 insertions, 2 deletions

diff --git a/spec/controllers/activitypub/inboxes_controller_spec.rb b/spec/controllers/activitypub/inboxes_controller_spec.rb
index eab4b8c3e..a9ee75490 100644
--- a/spec/controllers/activitypub/inboxes_controller_spec.rb
+++ b/spec/controllers/activitypub/inboxes_controller_spec.rb
@@ -4,7 +4,7 @@ require 'rails_helper'
 
 RSpec.describe ActivityPub::InboxesController, type: :controller do
   describe 'POST #create' do
-    context 'if signed_request_account' do
+    context 'with signed_request_account' do
       it 'returns 202' do
         allow(controller).to receive(:signed_request_account) do
           Fabricate(:account)
@@ -15,7 +15,7 @@ RSpec.describe ActivityPub::InboxesController, type: :controller do
       end
     end
 
-    context 'not signed_request_account' do
+    context 'without signed_request_account' do
       it 'returns 401' do
         allow(controller).to receive(:signed_request_account) do
           false