8 files changed, 72 insertions, 5 deletions
diff --git a/app/serializers/activitypub/note_serializer.rb b/app/serializers/activitypub/note_serializer.rb
index 27e058199..52ffaf717 100644
--- a/app/serializers/activitypub/note_serializer.rb
+++ b/app/serializers/activitypub/note_serializer.rb
@@ -3,7 +3,7 @@
 class ActivityPub::NoteSerializer < ActivityPub::Serializer
   include FormattingHelper
 
-  context_extensions :atom_uri, :conversation, :sensitive, :voters_count
+  context_extensions :atom_uri, :conversation, :sensitive, :voters_count, :direct_message
 
   attributes :id, :type, :summary,
              :in_reply_to, :published, :url,
@@ -15,6 +15,8 @@ class ActivityPub::NoteSerializer < ActivityPub::Serializer
   attribute :content_map, if: :language?
   attribute :updated, if: :edited?
 
+  attribute :direct_message, if: :non_public?
+
   has_many :virtual_attachments, key: :attachment
   has_many :virtual_tags, key: :tag
 
@@ -29,6 +31,8 @@ class ActivityPub::NoteSerializer < ActivityPub::Serializer
   attribute :voters_count, if: :poll_and_voters_count?
 
   def id
+    raise Mastodon::NotPermittedError, 'Local-only statuses should not be serialized' if object.local_only? && !instance_options[:allow_local_only]
+
     ActivityPub::TagManager.instance.uri_for(object)
   end
 
@@ -37,7 +41,15 @@ class ActivityPub::NoteSerializer < ActivityPub::Serializer
   end
 
   def summary
-    object.spoiler_text.presence
+    object.spoiler_text.presence || (instance_options[:allow_local_only] ? nil : Setting.outgoing_spoilers.presence)
+  end
+
+  def direct_message
+    object.direct_visibility?
+  end
+
+  def non_public?
+    !object.distributable?
   end
 
   def content
@@ -105,7 +117,7 @@ class ActivityPub::NoteSerializer < ActivityPub::Serializer
   end
 
   def sensitive
-    object.account.sensitized? || object.sensitive
+    object.account.sensitized? || object.sensitive || (!instance_options[:allow_local_only] && Setting.outgoing_spoilers.present?)
   end
 
   def virtual_attachments
diff --git a/app/serializers/initial_state_serializer.rb b/app/serializers/initial_state_serializer.rb
index 769ba653e..45ee06e12 100644
--- a/app/serializers/initial_state_serializer.rb
+++ b/app/serializers/initial_state_serializer.rb
@@ -5,11 +5,25 @@ class InitialStateSerializer < ActiveModel::Serializer
 
   attributes :meta, :compose, :accounts,
              :media_attachments, :settings,
+             :max_toot_chars, :poll_limits,
              :languages
 
   has_one :push_subscription, serializer: REST::WebPushSubscriptionSerializer
   has_one :role, serializer: REST::RoleSerializer
 
+  def max_toot_chars
+    StatusLengthValidator::MAX_CHARS
+  end
+
+  def poll_limits
+    {
+      max_options: PollValidator::MAX_OPTIONS,
+      max_option_chars: PollValidator::MAX_OPTION_CHARS,
+      min_expiration: PollValidator::MIN_EXPIRATION,
+      max_expiration: PollValidator::MAX_EXPIRATION,
+    }
+  end
+
   def meta
     store = {
       streaming_api_base_url: Rails.configuration.x.streaming_api_base_url,
@@ -38,6 +52,7 @@ class InitialStateSerializer < ActiveModel::Serializer
       store[:me]                = object.current_account.id.to_s
       store[:unfollow_modal]    = object.current_account.user.setting_unfollow_modal
       store[:boost_modal]       = object.current_account.user.setting_boost_modal
+      store[:favourite_modal]   = object.current_account.user.setting_favourite_modal
       store[:delete_modal]      = object.current_account.user.setting_delete_modal
       store[:auto_play_gif]     = object.current_account.user.setting_auto_play_gif
       store[:display_media]     = object.current_account.user.setting_display_media
@@ -48,6 +63,8 @@ class InitialStateSerializer < ActiveModel::Serializer
       store[:use_blurhash]      = object.current_account.user.setting_use_blurhash
       store[:use_pending_items] = object.current_account.user.setting_use_pending_items
       store[:trends]            = Setting.trends && object.current_account.user.setting_trends
+      store[:default_content_type] = object.current_account.user.setting_default_content_type
+      store[:system_emoji_font] = object.current_account.user.setting_system_emoji_font
       store[:crop_images]       = object.current_account.user.setting_crop_images
     else
       store[:auto_play_gif] = Setting.auto_play_gif
diff --git a/app/serializers/rest/account_serializer.rb b/app/serializers/rest/account_serializer.rb
index 2845470be..d4e7ac974 100644
--- a/app/serializers/rest/account_serializer.rb
+++ b/app/serializers/rest/account_serializer.rb
@@ -90,6 +90,10 @@ class REST::AccountSerializer < ActiveModel::Serializer
     object.last_status_at&.to_date&.iso8601
   end
 
+  def followers_count
+    Setting.hide_followers_count || object.user&.setting_hide_followers_count ? -1 : object.followers_count
+  end
+
   def display_name
     object.suspended? ? '' : object.display_name
   end
diff --git a/app/serializers/rest/instance_serializer.rb b/app/serializers/rest/instance_serializer.rb
index a07840f0c..41adaed80 100644
--- a/app/serializers/rest/instance_serializer.rb
+++ b/app/serializers/rest/instance_serializer.rb
@@ -56,6 +56,7 @@ class REST::InstanceSerializer < ActiveModel::Serializer
         max_characters: StatusLengthValidator::MAX_CHARS,
         max_media_attachments: 4,
         characters_reserved_per_url: StatusLengthValidator::URL_PLACEHOLDER_CHARS,
+        supported_mime_types: HtmlAwareFormatter::STATUS_MIME_TYPES,
       },
 
       media_attachments: {
diff --git a/app/serializers/rest/mute_serializer.rb b/app/serializers/rest/mute_serializer.rb
new file mode 100644
index 000000000..c9b55ff16
--- /dev/null
+++ b/app/serializers/rest/mute_serializer.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class REST::MuteSerializer < ActiveModel::Serializer
+  include RoutingHelper
+
+  attributes :id, :account, :target_account, :created_at, :hide_notifications
+
+  def account
+    REST::AccountSerializer.new(object.account)
+  end
+
+  def target_account
+    REST::AccountSerializer.new(object.target_account)
+  end
+end
diff --git a/app/serializers/rest/status_serializer.rb b/app/serializers/rest/status_serializer.rb
index e0b8f32a6..eb5f3c3ea 100644
--- a/app/serializers/rest/status_serializer.rb
+++ b/app/serializers/rest/status_serializer.rb
@@ -13,10 +13,12 @@ class REST::StatusSerializer < ActiveModel::Serializer
   attribute :muted, if: :current_user?
   attribute :bookmarked, if: :current_user?
   attribute :pinned, if: :pinnable?
+  attribute :local_only, if: :local?
   has_many :filtered, serializer: REST::FilterResultSerializer, if: :current_user?
 
   attribute :content, unless: :source_requested?
   attribute :text, if: :source_requested?
+  attribute :content_type, if: :source_requested?
 
   belongs_to :reblog, serializer: REST::StatusSerializer
   belongs_to :application, if: :show_application?
@@ -30,6 +32,8 @@ class REST::StatusSerializer < ActiveModel::Serializer
   has_one :preview_card, key: :card, serializer: REST::PreviewCardSerializer
   has_one :preloadable_poll, key: :poll, serializer: REST::PollSerializer
 
+  delegate :local?, to: :object
+
   def id
     object.id.to_s
   end
diff --git a/app/serializers/rest/status_source_serializer.rb b/app/serializers/rest/status_source_serializer.rb
index cd3c74084..c03cbd20d 100644
--- a/app/serializers/rest/status_source_serializer.rb
+++ b/app/serializers/rest/status_source_serializer.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 class REST::StatusSourceSerializer < ActiveModel::Serializer
-  attributes :id, :text, :spoiler_text
+  attributes :id, :text, :spoiler_text, :content_type
 
   def id
     object.id.to_s
diff --git a/app/serializers/rest/v1/instance_serializer.rb b/app/serializers/rest/v1/instance_serializer.rb
index 99d1b2bd6..0c2101404 100644
--- a/app/serializers/rest/v1/instance_serializer.rb
+++ b/app/serializers/rest/v1/instance_serializer.rb
@@ -4,7 +4,7 @@ class REST::V1::InstanceSerializer < ActiveModel::Serializer
   include RoutingHelper
 
   attributes :uri, :title, :short_description, :description, :email,
-             :version, :urls, :stats, :thumbnail,
+             :version, :urls, :stats, :thumbnail, :max_toot_chars, :poll_limits,
              :languages, :registrations, :approval_required, :invites_enabled,
              :configuration
 
@@ -36,6 +36,19 @@ class REST::V1::InstanceSerializer < ActiveModel::Serializer
     instance_presenter.thumbnail ? full_asset_url(instance_presenter.thumbnail.file.url(:'@1x')) : full_pack_url('media/images/preview.png')
   end
 
+  def max_toot_chars
+    StatusLengthValidator::MAX_CHARS
+  end
+
+  def poll_limits
+    {
+      max_options: PollValidator::MAX_OPTIONS,
+      max_option_chars: PollValidator::MAX_OPTION_CHARS,
+      min_expiration: PollValidator::MIN_EXPIRATION,
+      max_expiration: PollValidator::MAX_EXPIRATION,
+    }
+  end
+
   def stats
     {
       user_count: instance_presenter.user_count,
@@ -66,6 +79,7 @@ class REST::V1::InstanceSerializer < ActiveModel::Serializer
         max_characters: StatusLengthValidator::MAX_CHARS,
         max_media_attachments: 4,
         characters_reserved_per_url: StatusLengthValidator::URL_PLACEHOLDER_CHARS,
+        supported_mime_types: HtmlAwareFormatter::STATUS_MIME_TYPES,
       },
 
       media_attachments: {