Fix unfollows

lib/pleroma/web/activity_pub/activity_pub.ex

@@ -192,12 +192,11 @@ def follow(follower, followed, activity_id \\ nil, local \\ true) do
     end
   end
 
-  def unfollow(follower, followed, local \\ true) do
+  def unfollow(follower, followed, activity_id \\ nil, local \\ true) do
     with %Activity{} = follow_activity <- fetch_latest_follow(follower, followed),
-         unfollow_data <- make_unfollow_data(follower, followed, follow_activity),
+         unfollow_data <- make_unfollow_data(follower, followed, follow_activity, activity_id),
          {:ok, activity} <- insert(unfollow_data, local),
-         :ok,
-         maybe_federate(activity) do
+         :ok <- maybe_federate(activity) do
       {:ok, activity}
     end
   end
@@ -221,23 +220,23 @@ def delete(%Object{data: %{"id" => id, "actor" => actor}} = object, local \\ tru
     end
   end
 
-  def block(blocker, blocked, local \\ true) do
+  def block(blocker, blocked, activity_id \\ nil, local \\ true) do
     follow_activity = fetch_latest_follow(blocker, blocked)
 
     if follow_activity do
       unfollow(blocker, blocked, local)
     end
 
-    with block_data <- make_block_data(blocker, blocked),
+    with block_data <- make_block_data(blocker, blocked, activity_id),
          {:ok, activity} <- insert(block_data, local),
          :ok <- maybe_federate(activity) do
       {:ok, activity}
     end
   end
 
-  def unblock(blocker, blocked, local \\ true) do
+  def unblock(blocker, blocked, activity_id \\ nil, local \\ true) do
     with %Activity{} = block_activity <- fetch_latest_block(blocker, blocked),
-         unblock_data <- make_unblock_data(blocker, blocked, block_activity),
+         unblock_data <- make_unblock_data(blocker, blocked, block_activity, activity_id),
          {:ok, activity} <- insert(unblock_data, local),
          :ok <- maybe_federate(activity) do
       {:ok, activity}

lib/pleroma/web/activity_pub/transmogrifier.ex

@@ -251,7 +251,7 @@ def handle_incoming(
       ) do
     with %User{local: true} = followed = User.get_cached_by_ap_id(followed),
          %User{} = follower = User.get_or_fetch_by_ap_id(follower),
-         {:ok, activity} <- ActivityPub.unfollow(follower, followed, false) do
+         {:ok, activity} <- ActivityPub.unfollow(follower, followed, id, false) do
       User.unfollow(follower, followed)
       {:ok, activity}
     else
@@ -264,7 +264,7 @@ def handle_incoming(
       ) do
     with %User{local: true} = blocked = User.get_cached_by_ap_id(blocked),
          %User{} = blocker = User.get_or_fetch_by_ap_id(blocker),
-         {:ok, activity} <- ActivityPub.block(blocker, blocked, false) do
+         {:ok, activity} <- ActivityPub.block(blocker, blocked, id, false) do
       User.unfollow(blocker, blocked)
       User.block(blocker, blocked)
       {:ok, activity}

lib/pleroma/web/activity_pub/utils.ex

@@ -346,13 +346,14 @@ def remove_announce_from_object(%Activity{data: %{"actor" => actor}}, object) do
 
   #### Unfollow-related helpers
 
-  def make_unfollow_data(follower, followed, follow_activity) do
-    %{
+  def make_unfollow_data(follower, followed, follow_activity, activity_id) do
+    data = %{
       "type" => "Undo",
       "actor" => follower.ap_id,
       "to" => [followed.ap_id],
-      "object" => follow_activity.data["id"]
+      "object" => follow_activity.data
     }
+    if activity_id, do: Map.put(data, "id", activity_id), else: data
   end
 
   #### Block-related helpers
@@ -373,22 +374,24 @@ def fetch_latest_block(%User{ap_id: blocker_id}, %User{ap_id: blocked_id}) do
     Repo.one(query)
   end
 
-  def make_block_data(blocker, blocked) do
-    %{
+  def make_block_data(blocker, blocked, activity_id) do
+    data = %{
       "type" => "Block",
       "actor" => blocker.ap_id,
       "to" => [blocked.ap_id],
       "object" => blocked.ap_id
     }
+    if activity_id, do: Map.put(data, "id", activity_id), else: data
   end
 
-  def make_unblock_data(blocker, blocked, block_activity) do
-    %{
+  def make_unblock_data(blocker, blocked, block_activity, activity_id) do
+    data = %{
       "type" => "Undo",
       "actor" => blocker.ap_id,
       "to" => [blocked.ap_id],
       "object" => block_activity.data
     }
+    if activity_id, do: Map.put(data, "id", activity_id), else: data
   end
 
   #### Create-related helpers

lib/pleroma/web/twitter_api/representers/activity_representer.ex

@@ -99,7 +99,7 @@ def to_map(
       ) do
     created_at = created_at |> Utils.date_to_asctime()
 
-    text = "#{user.nickname} undid the action at #{undid_activity}"
+    text = "#{user.nickname} undid the action at #{undid_activity["id"]}"
 
     %{
       "id" => activity.id,

test/fixtures/mastodon-unfollow-activity.json

@@ -29,5 +29,6 @@
       "id":"http://mastodon.example.org/users/admin#follows/2",
       "actor":"http://mastodon.example.org/users/admin"
    },
-    "actor": "http://mastodon.example.org/users/admin"
+   "actor":"http://mastodon.example.org/users/admin",
+   "id": "http://mastodon.example.org/users/admin#follow/2/undo"
 }

test/web/activity_pub/activity_pub_test.exs

@@ -425,7 +425,7 @@ test "creates an undo activity for the last follow" do
 
       assert activity.data["type"] == "Undo"
       assert activity.data["actor"] == follower.ap_id
-      assert activity.data["object"] == follow_activity.data["id"]
+      assert activity.data["object"]["id"] == follow_activity.data["id"]
     end
   end