method for unbanning

models/site.rb

@@ -505,6 +505,14 @@ class Site < Sequel::Model
     is_banned
   end
 
+  def unban!
+    undelete!
+    self.is_banned = false
+    self.banned_at = nil
+    self.blackbox_whitelisted = true
+    save validate: false
+  end
+
   def ban!
     if username.nil? || username.empty?
       raise 'username is missing'

tests/site_tests.rb

@@ -14,6 +14,21 @@ describe Site do
     end
   end
 
+  describe 'unban' do
+    it 'works' do
+      site = Fabricate :site
+      index_path = File.join site.base_files_path, 'index.html'
+      site.ban!
+      File.exist?(index_path).must_equal false
+      site.unban!
+      site.reload
+      site.is_banned.must_equal false
+      site.banned_at.must_be_nil
+      site.blackbox_whitelisted.must_equal true
+      File.exist?(index_path).must_equal true
+    end
+  end
+
   describe 'directory create' do
     it 'handles wacky pathnames' do
       ['/derp', '/derp/'].each do |path|