Add Follow activity insertion

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -6,7 +6,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do
   def insert(map) when is_map(map) do
     map = Map.put_new_lazy(map, "id", &generate_activity_id/0)
 
-    map = if map["object"] do
+    map = if is_map(map["object"]) do
       object = Map.put_new_lazy(map["object"], "id", &generate_object_id/0)
       Repo.insert!(%Object{data: object})
       Map.put(map, "object", object)

lib/pleroma/web/twitter_api/twitter_api.ex

@@ -103,9 +103,14 @@ def fetch_status(user, id) do
 
   def follow(%User{} = follower, followed_id) do
     with %User{} = followed <- Repo.get(User, followed_id),
-         { :ok, follower } <- User.follow(follower, followed)
+         { :ok, follower } <- User.follow(follower, followed),
+         { :ok, activity } <- ActivityPub.insert(%{
+           "type" => "Follow",
+           "actor" => follower.ap_id,
+           "object" => followed.ap_id
+         })
     do
-      { :ok, follower, followed }
+      { :ok, follower, followed, activity }
     end
   end
 

lib/pleroma/web/twitter_api/twitter_api_controller.ex

@@ -44,7 +44,7 @@ def friends_timeline(%{assigns: %{user: user}} = conn, params) do
   end
 
   def follow(%{assigns: %{user: user}} = conn, %{ "user_id" => followed_id }) do
-    { :ok, _user, follower } = TwitterAPI.follow(user, followed_id)
+    { :ok, _user, follower, _activity } = TwitterAPI.follow(user, followed_id)
 
     response = follower |> UserRepresenter.to_json(%{for: user})
 

test/web/twitter_api/twitter_api_test.exs

@@ -107,11 +107,13 @@ test "Follow another user" do
     { :ok, user } = UserBuilder.insert
     { :ok, following } = UserBuilder.insert(%{nickname: "guy"})
 
-    {:ok, user, following } = TwitterAPI.follow(user, following.id)
+    {:ok, user, following, activity } = TwitterAPI.follow(user, following.id)
 
     user = Repo.get(User, user.id)
+    follow = Repo.get(Activity, activity.id)
 
     assert user.following == [User.ap_followers(following)]
+    assert follow == activity
   end
 
   test "Unfollow another user" do