Add audit logs to Admin::InstancesController (#27386)

app/controllers/admin/instances_controller.rb

@@ -13,6 +13,7 @@ module Admin
     def show
       authorize :instance, :show?
       @time_period = (6.days.ago.to_date...Time.now.utc.to_date)
+      @action_logs = Admin::ActionLogFilter.new(target_domain: @instance.domain).results.limit(5)
     end
 
     def destroy

app/models/admin/action_log_filter.rb

@@ -5,6 +5,14 @@ class Admin::ActionLogFilter
     action_type
     account_id
     target_account_id
+    target_domain
+  ).freeze
+
+  INSTANCE_TARGET_TYPES = %w(
+    DomainBlock
+    DomainAllow
+    Instance
+    UnavailableDomain
   ).freeze
 
   ACTION_TYPE_MAP = {
@@ -95,6 +103,9 @@ class Admin::ActionLogFilter
     when 'target_account_id'
       account = Account.find_or_initialize_by(id: value)
       latest_action_logs.where(target: [account, account.user].compact)
+    when 'target_domain'
+      normalized_domain = TagManager.instance.normalize_domain(value)
+      latest_action_logs.where(human_identifier: normalized_domain, target_type: INSTANCE_TARGET_TYPES)
     else
       raise Mastodon::InvalidParameterError, "Unknown filter: #{key}"
     end

app/views/admin/instances/show.html.haml

@@ -114,6 +114,16 @@
 - if @instance.persisted?
   %hr.spacer/
 
+  %h3= t('admin.instances.audit_log.title')
+  - if @action_logs.empty?
+    %p= t('accounts.nothing_here')
+  - else
+    .report-notes
+      = render partial: 'admin/action_logs/action_log', collection: @action_logs
+    = link_to t('admin.instances.audit_log.view_all'), admin_action_logs_path(target_domain: @instance.domain), class: 'button'
+
+  %hr.spacer/
+
   %h3= t('admin.instances.availability.title')
 
   %p