Make API key auth togglable [SCI-6968]

app/controllers/concerns/token_authentication.rb

@@ -21,6 +21,8 @@ module TokenAuthentication
   end
 
   def authenticate_with_api_key
+    return unless Rails.configuration.x.core_api_key_enabled
+
     @api_key = request.headers['Api-Key']
     return unless @api_key
 

app/models/user.rb

@@ -629,6 +629,10 @@ class User < ApplicationRecord
       %w(id due_date age results status archived assigned tags comments)
   end
 
+  def api_key_enabled?
+    Rails.configuration.x.core_api_key_enabled
+  end
+
   protected
 
   def confirmation_required?

app/views/users/registrations/edit.html.erb

@@ -36,7 +36,7 @@
       </div>
       <%= render partial: 'users/registrations/edit_partials/2fa' %>
 
-      <% if Rails.application.config.x.core_api_v1_enabled %>
+      <% if current_user.api_key_enabled? %>
         <%= render partial: 'users/registrations/edit_partials/api_key' %>
       <% end %>
    </div>

config/initializers/api.rb

@@ -12,4 +12,6 @@ Rails.application.configure do
   config.x.core_api_v1_enabled = ENV['CORE_API_V1_ENABLED'] || false
 
   config.x.core_api_v2_enabled = ENV['CORE_API_V2_ENABLED'] || false
+
+  config.x.core_api_key_enabled = ENV['CORE_API_KEY_ENABLED'] || false
 end