TwApi ActivityView: Add delete activities.

lib/pleroma/web/twitter_api/views/activity_view.ex

@@ -8,6 +8,26 @@ defmodule Pleroma.Web.TwitterAPI.ActivityView do
   alias Pleroma.Activity
   alias Pleroma.Formatter
 
+  def render("activity.json", %{activity: %{data: %{"type" => "Delete"}} = activity} = opts) do
+    user = User.get_cached_by_ap_id(activity.data["actor"])
+    created_at = activity.data["published"] |> Utils.date_to_asctime()
+
+    %{
+      "id" => activity.id,
+      "uri" => activity.data["object"],
+      "user" => UserView.render("show.json", %{user: user, for: opts[:for]}),
+      "attentions" => [],
+      "statusnet_html" => "deleted notice {{tag",
+      "text" => "deleted notice {{tag",
+      "is_local" => activity.local,
+      "is_post_verb" => false,
+      "created_at" => created_at,
+      "in_reply_to_status_id" => nil,
+      "external_url" => activity.data["id"],
+      "activity_type" => "delete"
+    }
+  end
+
   def render("activity.json", %{activity: %{data: %{"type" => "Follow"}} = activity} = opts) do
     user = User.get_cached_by_ap_id(activity.data["actor"])
     created_at = activity.data["published"] || DateTime.to_iso8601(activity.inserted_at)

test/web/twitter_api/views/activity_view_test.exs

@@ -126,7 +126,6 @@ test "A follow activity" do
     user = insert(:user)
     other_user = insert(:user, %{nickname: "shp"})
 
-    {:ok, activity} = CommonAPI.post(user, %{"status" => "Hey @shp!"})
     {:ok, follower} = User.follow(user, other_user)
     {:ok, follow} = ActivityPub.follow(follower, other_user)
 
@@ -148,4 +147,30 @@ test "A follow activity" do
 
     assert result == expected
   end
+
+  test "a delete activity" do
+    user = insert(:user)
+
+    {:ok, activity} = CommonAPI.post(user, %{"status" => "Hey @shp!"})
+    {:ok, delete} = CommonAPI.delete(activity.id, user)
+
+    result = ActivityView.render("activity.json", activity: delete)
+
+    expected = %{
+      "activity_type" => "delete",
+      "attentions" => [],
+      "created_at" => delete.data["published"] |> Utils.date_to_asctime(),
+      "external_url" => delete.data["id"],
+      "id" => delete.id,
+      "in_reply_to_status_id" => nil,
+      "is_local" => true,
+      "is_post_verb" => false,
+      "statusnet_html" => "deleted notice {{tag",
+      "text" => "deleted notice {{tag",
+      "uri" => delete.data["object"],
+      "user" => UserView.render("show.json", user: user)
+    }
+
+    assert result == expected
+  end
 end