Add ability for admins to delete canonical email blocks (#16644)

* Add admin option to remove canonical email blocks from a deleted account

* Add tootctl canonical_email_blocks to inspect and remove canonical email blocks

app/controllers/admin/accounts_controller.rb

@@ -117,6 +117,16 @@ module Admin
       redirect_to admin_account_path(@account.id), notice: I18n.t('admin.accounts.removed_header_msg', username: @account.acct)
     end
 
+    def unblock_email
+      authorize @account, :unblock_email?
+
+      CanonicalEmailBlock.where(reference_account: @account).delete_all
+
+      log_action :unblock_email, @account
+
+      redirect_to admin_account_path(@account.id), notice: I18n.t('admin.accounts.unblocked_email_msg', username: @account.acct)
+    end
+
     private
 
     def set_account

app/models/admin/action_log_filter.rb

@@ -50,6 +50,7 @@ class Admin::ActionLogFilter
     update_announcement: { target_type: 'Announcement', action: 'update' }.freeze,
     update_custom_emoji: { target_type: 'CustomEmoji', action: 'update' }.freeze,
     update_status: { target_type: 'Status', action: 'update' }.freeze,
+    unblock_email_account: { target_type: 'Account', action: 'unblock_email' }.freeze,
   }.freeze
 
   attr_reader :params

app/models/canonical_email_block.rb

@@ -24,4 +24,8 @@ class CanonicalEmailBlock < ApplicationRecord
   def self.block?(email)
     where(canonical_email_hash: email_to_canonical_email_hash(email)).exists?
   end
+
+  def self.find_blocks(email)
+    where(canonical_email_hash: email_to_canonical_email_hash(email))
+  end
 end

app/policies/account_policy.rb

@@ -64,4 +64,8 @@ class AccountPolicy < ApplicationPolicy
   def memorialize?
     admin? && !record.user&.admin? && !record.instance_actor?
   end
+
+  def unblock_email?
+    staff?
+  end
 end

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

@@ -71,7 +71,9 @@
           = t('admin.accounts.no_limits_imposed')
       .dashboard__counters__label= t 'admin.accounts.login_status'
 
-- unless @account.local? && @account.user.nil?
+- if @account.local? && @account.user.nil?
+  = link_to t('admin.accounts.unblock_email'), unblock_email_admin_account_path(@account.id), method: :post, class: 'button' if can?(:unblock_email, @account) && CanonicalEmailBlock.where(reference_account_id: @account.id).exists?
+- else
   .table-wrapper
     %table.table.inline-table
       %tbody