Add featured route

lib/nulla_web/controllers/activitypub/featured_controller.ex

@@ -0,0 +1,24 @@
+defmodule NullaWeb.ActivityPub.FeaturedController do
+  use NullaWeb, :controller
+  alias Nulla.Actors
+  alias Nulla.Notes
+  alias Nulla.Actors.Actor
+  alias NullaWeb.ActivityPub.FeaturedJSON
+
+  def index(conn, %{"username" => username}) do
+    domain = NullaWeb.Endpoint.host()
+    actor = Actors.get_actor_by(acct: "#{username}@#{domain}")
+
+    case actor do
+      %Actor{} = actor ->
+        notes = Notes.list_notes_by(actor_id: actor.id, featured: true)
+
+        conn
+        |> put_resp_content_type("application/activity+json")
+        |> send_resp(200, Jason.encode!(FeaturedJSON.index(actor, notes)))
+
+      _ ->
+        send_resp(conn, 404, "")
+    end
+  end
+end

lib/nulla_web/controllers/activitypub/featured_json.ex

@@ -0,0 +1,51 @@
+defmodule NullaWeb.ActivityPub.FeaturedJSON do
+  @doc """
+  Renders a featured.
+  """
+  def index(actor, notes) do
+    Jason.OrderedObject.new(
+      "@context": "https://www.w3.org/ns/activitystreams",
+      id: actor.featured,
+      type: "OrderedCollection",
+      totalItems: length(notes),
+      orderedItems: Enum.map(notes, &data/1)
+    )
+  end
+
+  defp data(note) do
+    attachment =
+      case note.media_attachments do
+        [] ->
+          []
+
+        attachments ->
+          [
+            attachment:
+              Enum.map(attachments, fn att ->
+                Jason.OrderedObject.new(
+                  type: "Document",
+                  mediaType: att.mime_type,
+                  url: "https://#{note.actor.domain}/files/#{att.file}"
+                )
+              end)
+          ]
+      end
+
+    Jason.OrderedObject.new(
+      "@context": "https://www.w3.org/ns/activitystreams",
+      id: note.ap_id,
+      type: "Note",
+      summary: nil,
+      inReplyTo: note.inReplyTo,
+      published: note.published,
+      url: note.url,
+      attributedTo: note.actor.ap_id,
+      to: note.to,
+      cc: note.cc,
+      sensitive: note.sensitive,
+      content: note.content,
+      contentMap: Jason.OrderedObject.new("#{note.language}": note.content),
+      attachment: attachment
+    )
+  end
+end

lib/nulla_web/controllers/activitypub/note_json.ex

@@ -32,7 +32,7 @@ defmodule NullaWeb.ActivityPub.NoteJSON do
         "https://www.w3.org/ns/activitystreams",
         Jason.OrderedObject.new(sensitive: "as:sensitive")
       ],
-      id: "#{note.actor.ap_id}/notes/#{note.id}",
+      id: note.ap_id,
       type: "Note",
       summary: nil,
       inReplyTo: note.inReplyTo,

lib/nulla_web/controllers/activitypub/outbox_json.ex

@@ -13,6 +13,9 @@ defmodule NullaWeb.ActivityPub.OutboxJSON do
     )
   end
 
+  @doc """
+  Renders outbox items.
+  """
   def show(actor, activities, max_id, min_id) do
     Jason.OrderedObject.new(
       "@context": [

lib/nulla_web/router.ex

@@ -85,6 +85,7 @@ defmodule NullaWeb.Router do
       get "/followers", FollowController, :followers
       post "/inbox", InboxController, :inbox
       get "/outbox", OutboxController, :index
+      get "/collections/featured", FeaturedController, :index
       get "/notes/:id", NoteController, :show
     end
   end