Add E2EE API (#13820)

app/serializers/activitypub/activity_serializer.rb

@@ -1,52 +1,22 @@
 # frozen_string_literal: true
 
 class ActivityPub::ActivitySerializer < ActivityPub::Serializer
+  def self.serializer_for(model, options)
+    case model.class.name
+    when 'Status'
+      ActivityPub::NoteSerializer
+    when 'DeliverToDeviceService::EncryptedMessage'
+      ActivityPub::EncryptedMessageSerializer
+    else
+      super
+    end
+  end
+
   attributes :id, :type, :actor, :published, :to, :cc
 
-  has_one :proper, key: :object, serializer: ActivityPub::NoteSerializer, if: :serialize_object?
-
-  attribute :proper_uri, key: :object, unless: :serialize_object?
-  attribute :atom_uri, if: :announce?
-
-  def id
-    ActivityPub::TagManager.instance.activity_uri_for(object)
-  end
-
-  def type
-    announce? ? 'Announce' : 'Create'
-  end
-
-  def actor
-    ActivityPub::TagManager.instance.uri_for(object.account)
-  end
+  has_one :virtual_object, key: :object
 
   def published
-    object.created_at.iso8601
-  end
-
-  def to
-    ActivityPub::TagManager.instance.to(object)
-  end
-
-  def cc
-    ActivityPub::TagManager.instance.cc(object)
-  end
-
-  def proper_uri
-    ActivityPub::TagManager.instance.uri_for(object.proper)
-  end
-
-  def atom_uri
-    OStatus::TagManager.instance.uri_for(object)
-  end
-
-  def announce?
-    object.reblog?
-  end
-
-  def serialize_object?
-    return true unless announce?
-    # Serialize private self-boosts of local toots
-    object.account == object.proper.account && object.proper.private_visibility? && object.local?
+    object.published.iso8601
   end
 end