4 files changed, 43 insertions, 5 deletions
diff --git a/app/models/domain_allow.rb b/app/models/domain_allow.rb
new file mode 100644
index 000000000..85018b636
--- /dev/null
+++ b/app/models/domain_allow.rb
@@ -0,0 +1,33 @@
+# frozen_string_literal: true
+
+# == Schema Information
+#
+# Table name: domain_allows
+#
+#  id         :bigint(8)        not null, primary key
+#  domain     :string           default(""), not null
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#
+
+class DomainAllow < ApplicationRecord
+  include DomainNormalizable
+
+  validates :domain, presence: true, uniqueness: true
+
+  scope :matches_domain, ->(value) { where(arel_table[:domain].matches("%#{value}%")) }
+
+  class << self
+    def allowed?(domain)
+      !rule_for(domain).nil?
+    end
+
+    def rule_for(domain)
+      return if domain.blank?
+
+      uri = Addressable::URI.new.tap { |u| u.host = domain.gsub(/[\/]/, '') }
+
+      find_by(domain: uri.normalized_host)
+    end
+  end
+end
diff --git a/app/models/instance.rb b/app/models/instance.rb
index 797a191e0..3c740f8a2 100644
--- a/app/models/instance.rb
+++ b/app/models/instance.rb
@@ -7,8 +7,9 @@ class Instance
 
   def initialize(resource)
     @domain         = resource.domain
-    @accounts_count = resource.is_a?(DomainBlock) ? nil : resource.accounts_count
+    @accounts_count = resource.respond_to?(:accounts_count) ? resource.accounts_count : nil
     @domain_block   = resource.is_a?(DomainBlock) ? resource : DomainBlock.rule_for(domain)
+    @domain_allow   = resource.is_a?(DomainAllow) ? resource : DomainAllow.rule_for(domain)
   end
 
   def countable?
diff --git a/app/models/instance_filter.rb b/app/models/instance_filter.rb
index 848fff53e..8bfab826d 100644
--- a/app/models/instance_filter.rb
+++ b/app/models/instance_filter.rb
@@ -12,6 +12,10 @@ class InstanceFilter
       scope = DomainBlock
       scope = scope.matches_domain(params[:by_domain]) if params[:by_domain].present?
       scope.order(id: :desc)
+    elsif params[:allowed].present?
+      scope = DomainAllow
+      scope = scope.matches_domain(params[:by_domain]) if params[:by_domain].present?
+      scope.order(id: :desc)
     else
       scope = Account.remote
       scope = scope.matches_domain(params[:by_domain]) if params[:by_domain].present?
diff --git a/app/models/tag.rb b/app/models/tag.rb
index 972242064..46e3a3ec0 100644
--- a/app/models/tag.rb
+++ b/app/models/tag.rb
@@ -65,7 +65,7 @@ class Tag < ApplicationRecord
 
   class << self
     def find_or_create_by_names(name_or_names)
-      Array(name_or_names).map(&method(:normalize)).uniq.map do |normalized_name|
+      Array(name_or_names).map(&method(:normalize)).uniq { |str| str.mb_chars.downcase.to_s }.map do |normalized_name|
         tag = matching_name(normalized_name).first || create(name: normalized_name)
 
         yield tag if block_given?
@@ -77,7 +77,7 @@ class Tag < ApplicationRecord
     def search_for(term, limit = 5, offset = 0)
       pattern = sanitize_sql_like(normalize(term.strip)) + '%'
 
-      Tag.where(arel_table[:name].lower.matches(pattern.downcase))
+      Tag.where(arel_table[:name].lower.matches(pattern.mb_chars.downcase.to_s))
          .order(:name)
          .limit(limit)
          .offset(offset)
@@ -92,7 +92,7 @@ class Tag < ApplicationRecord
     end
 
     def matching_name(name_or_names)
-      names = Array(name_or_names).map { |name| normalize(name).downcase }
+      names = Array(name_or_names).map { |name| normalize(name).mb_chars.downcase.to_s }
 
       if names.size == 1
         where(arel_table[:name].lower.eq(names.first))
@@ -104,7 +104,7 @@ class Tag < ApplicationRecord
     private
 
     def normalize(str)
-      str.gsub(/\A#/, '').mb_chars.to_s
+      str.gsub(/\A#/, '')
     end
   end