8 files changed, 121 insertions, 5 deletions
diff --git a/app/serializers/rest/account_serializer.rb b/app/serializers/rest/account_serializer.rb
index e644a3f91..9a3ca75dc 100644
--- a/app/serializers/rest/account_serializer.rb
+++ b/app/serializers/rest/account_serializer.rb
@@ -14,6 +14,7 @@ class REST::AccountSerializer < ActiveModel::Serializer
 
   attribute :suspended, if: :suspended?
   attribute :silenced, key: :limited, if: :silenced?
+  attribute :noindex, if: :local?
 
   class FieldSerializer < ActiveModel::Serializer
     include FormattingHelper
@@ -107,7 +108,11 @@ class REST::AccountSerializer < ActiveModel::Serializer
     object.silenced?
   end
 
-  delegate :suspended?, :silenced?, to: :object
+  def noindex
+    object.user_prefers_noindex?
+  end
+
+  delegate :suspended?, :silenced?, :local?, to: :object
 
   def moved_and_not_nested?
     object.moved? && object.moved_to_account.moved_to_account_id.nil?
diff --git a/app/serializers/rest/domain_block_serializer.rb b/app/serializers/rest/domain_block_serializer.rb
new file mode 100644
index 000000000..678463e13
--- /dev/null
+++ b/app/serializers/rest/domain_block_serializer.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class REST::DomainBlockSerializer < ActiveModel::Serializer
+  attributes :domain, :digest, :severity, :comment
+
+  def domain
+    object.public_domain
+  end
+
+  def digest
+    object.domain_digest
+  end
+
+  def comment
+    object.public_comment if instance_options[:with_comment]
+  end
+end
diff --git a/app/serializers/rest/extended_description_serializer.rb b/app/serializers/rest/extended_description_serializer.rb
new file mode 100644
index 000000000..c0fa3450d
--- /dev/null
+++ b/app/serializers/rest/extended_description_serializer.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+class REST::ExtendedDescriptionSerializer < ActiveModel::Serializer
+  attributes :updated_at, :content
+
+  def updated_at
+    object.updated_at&.iso8601
+  end
+
+  def content
+    if object.text.present?
+      markdown.render(object.text)
+    else
+      ''
+    end
+  end
+
+  private
+
+  def markdown
+    @markdown ||= Redcarpet::Markdown.new(Redcarpet::Render::HTML)
+  end
+end
diff --git a/app/serializers/rest/featured_tag_serializer.rb b/app/serializers/rest/featured_tag_serializer.rb
index 8abcd9b90..c4b35ab03 100644
--- a/app/serializers/rest/featured_tag_serializer.rb
+++ b/app/serializers/rest/featured_tag_serializer.rb
@@ -16,4 +16,12 @@ class REST::FeaturedTagSerializer < ActiveModel::Serializer
   def name
     object.display_name
   end
+
+  def statuses_count
+    object.statuses_count.to_s
+  end
+
+  def last_status_at
+    object.last_status_at&.to_date&.iso8601
+  end
 end
diff --git a/app/serializers/rest/instance_serializer.rb b/app/serializers/rest/instance_serializer.rb
index f4ea49427..5ae1099d0 100644
--- a/app/serializers/rest/instance_serializer.rb
+++ b/app/serializers/rest/instance_serializer.rb
@@ -17,7 +17,20 @@ class REST::InstanceSerializer < ActiveModel::Serializer
   has_many :rules, serializer: REST::RuleSerializer
 
   def thumbnail
-    object.thumbnail ? full_asset_url(object.thumbnail.file.url) : full_pack_url('media/images/preview.png')
+    if object.thumbnail
+      {
+        url: full_asset_url(object.thumbnail.file.url(:'@1x')),
+        blurhash: object.thumbnail.blurhash,
+        versions: {
+          '@1x': full_asset_url(object.thumbnail.file.url(:'@1x')),
+          '@2x': full_asset_url(object.thumbnail.file.url(:'@2x')),
+        },
+      }
+    else
+      {
+        url: full_pack_url('media/images/preview.png'),
+      }
+    end
   end
 
   def usage
@@ -34,6 +47,10 @@ class REST::InstanceSerializer < ActiveModel::Serializer
         streaming: Rails.configuration.x.streaming_api_base_url,
       },
 
+      accounts: {
+        max_featured_tags: FeaturedTag::LIMIT,
+      },
+
       statuses: {
         max_characters: StatusLengthValidator::MAX_CHARS,
         max_media_attachments: 4,
@@ -55,13 +72,36 @@ class REST::InstanceSerializer < ActiveModel::Serializer
         min_expiration: PollValidator::MIN_EXPIRATION,
         max_expiration: PollValidator::MAX_EXPIRATION,
       },
+
+      translation: {
+        enabled: TranslationService.configured?,
+      },
     }
   end
 
   def registrations
     {
-      enabled: Setting.registrations_mode != 'none' && !Rails.configuration.x.single_user_mode,
+      enabled: registrations_enabled?,
       approval_required: Setting.registrations_mode == 'approved',
+      message: registrations_enabled? ? nil : registrations_message,
     }
   end
+
+  private
+
+  def registrations_enabled?
+    Setting.registrations_mode != 'none' && !Rails.configuration.x.single_user_mode
+  end
+
+  def registrations_message
+    if Setting.closed_registrations_message.present?
+      markdown.render(Setting.closed_registrations_message)
+    else
+      nil
+    end
+  end
+
+  def markdown
+    @markdown ||= Redcarpet::Markdown.new(Redcarpet::Render::HTML, no_images: true)
+  end
 end
diff --git a/app/serializers/rest/privacy_policy_serializer.rb b/app/serializers/rest/privacy_policy_serializer.rb
new file mode 100644
index 000000000..f0572e714
--- /dev/null
+++ b/app/serializers/rest/privacy_policy_serializer.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class REST::PrivacyPolicySerializer < ActiveModel::Serializer
+  attributes :updated_at, :content
+
+  def updated_at
+    object.updated_at.iso8601
+  end
+
+  def content
+    markdown.render(object.text % { domain: Rails.configuration.x.local_domain })
+  end
+
+  private
+
+  def markdown
+    @markdown ||= Redcarpet::Markdown.new(Redcarpet::Render::HTML, escape_html: true, no_images: true)
+  end
+end
diff --git a/app/serializers/rest/translation_serializer.rb b/app/serializers/rest/translation_serializer.rb
index a06f23f32..05ededc95 100644
--- a/app/serializers/rest/translation_serializer.rb
+++ b/app/serializers/rest/translation_serializer.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class REST::TranslationSerializer < ActiveModel::Serializer
-  attributes :content, :detected_source_language
+  attributes :content, :detected_source_language, :provider
 
   def content
     object.text
diff --git a/app/serializers/rest/v1/instance_serializer.rb b/app/serializers/rest/v1/instance_serializer.rb
index fefbed8ee..389ec7dff 100644
--- a/app/serializers/rest/v1/instance_serializer.rb
+++ b/app/serializers/rest/v1/instance_serializer.rb
@@ -33,7 +33,7 @@ class REST::V1::InstanceSerializer < ActiveModel::Serializer
   end
 
   def thumbnail
-    instance_presenter.thumbnail ? full_asset_url(instance_presenter.thumbnail.file.url) : full_pack_url('media/images/preview.png')
+    instance_presenter.thumbnail ? full_asset_url(instance_presenter.thumbnail.file.url(:'@1x')) : full_pack_url('media/images/preview.png')
   end
 
   def max_toot_chars
@@ -71,6 +71,10 @@ class REST::V1::InstanceSerializer < ActiveModel::Serializer
 
   def configuration
     {
+      accounts: {
+        max_featured_tags: FeaturedTag::LIMIT,
+      },
+
       statuses: {
         max_characters: StatusLengthValidator::MAX_CHARS,
         max_media_attachments: 4,