Admission-based registrations mode (#10250)

Fix #6856
Fix #6951

app/controllers/admin/accounts_controller.rb

@@ -2,9 +2,9 @@
 
 module Admin
   class AccountsController < BaseController
-    before_action :set_account, only: [:show, :subscribe, :unsubscribe, :redownload, :remove_avatar, :remove_header, :enable, :unsilence, :unsuspend, :memorialize]
+    before_action :set_account, only: [:show, :subscribe, :unsubscribe, :redownload, :remove_avatar, :remove_header, :enable, :unsilence, :unsuspend, :memorialize, :approve, :reject]
     before_action :require_remote_account!, only: [:subscribe, :unsubscribe, :redownload]
-    before_action :require_local_account!, only: [:enable, :memorialize]
+    before_action :require_local_account!, only: [:enable, :memorialize, :approve, :reject]
 
     def index
       authorize :account, :index?
@@ -45,6 +45,18 @@ module Admin
       redirect_to admin_account_path(@account.id)
     end
 
+    def approve
+      authorize @account.user, :approve?
+      @account.user.approve!
+      redirect_to admin_accounts_path(pending: '1')
+    end
+
+    def reject
+      authorize @account.user, :reject?
+      SuspendAccountService.new.call(@account, including_user: true, destroy: true)
+      redirect_to admin_accounts_path(pending: '1')
+    end
+
     def unsilence
       authorize @account, :unsilence?
       @account.unsilence!
@@ -114,6 +126,7 @@ module Admin
         :remote,
         :by_domain,
         :active,
+        :pending,
         :silenced,
         :suspended,
         :username,

app/controllers/admin/dashboard_controller.rb

@@ -10,7 +10,7 @@ module Admin
       @interactions_week     = Redis.current.get("activity:interactions:#{current_week}") || 0
       @relay_enabled         = Relay.enabled.exists?
       @single_user_mode      = Rails.configuration.x.single_user_mode
-      @registrations_enabled = Setting.open_registrations
+      @registrations_enabled = Setting.registrations_mode != 'none'
       @deletions_enabled     = Setting.open_deletion
       @invites_enabled       = Setting.min_invite_role == 'user'
       @search_enabled        = Chewy.enabled?

app/controllers/admin/settings_controller.rb

@@ -10,7 +10,7 @@ module Admin
       site_description
       site_extended_description
       site_terms
-      open_registrations
+      registrations_mode
       closed_registrations_message
       open_deletion
       timeline_preview
@@ -30,7 +30,6 @@ module Admin
     ).freeze
 
     BOOLEAN_SETTINGS = %w(
-      open_registrations
       open_deletion
       timeline_preview
       show_staff_badge