[Pleroma.Web.ActivityPub.Transmogrifier]: Fix likes

[akkoma] / lib / pleroma / web / activity_pub / transmogrifier.ex

diff --git a/lib/pleroma/web/activity_pub/transmogrifier.ex b/lib/pleroma/web/activity_pub/transmogrifier.ex
index 9d7c64743a7b43571892b228700aa070115735c3..5e07d5ea95344c2da0df8919f95c2fe29d2014cb 100644 (file)
--- a/lib/pleroma/web/activity_pub/transmogrifier.ex
+++ b/lib/pleroma/web/activity_pub/transmogrifier.ex
@@ -13,18 +13,73 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
 
   require Logger
 
+  def get_actor(%{"actor" => actor}) when is_binary(actor) do
+    actor
+  end
+
+  def get_actor(%{"actor" => actor}) when is_list(actor) do
+    if is_binary(Enum.at(actor, 0)) do
+      Enum.at(actor, 0)
+    else
+      Enum.find(actor, fn %{"type" => type} -> type == "Person" end)
+      |> Map.get("id")
+    end
+  end
+
+  def get_actor(%{"actor" => actor}) when is_map(actor) do
+    actor["id"]
+  end
+
   @doc """
   Modifies an incoming AP object (mastodon format) to our internal format.
   """
   def fix_object(object) do
     object
-    |> Map.put("actor", object["attributedTo"])
+    |> fix_actor
     |> fix_attachments
     |> fix_context
     |> fix_in_reply_to
     |> fix_emoji
     |> fix_tag
     |> fix_content_map
+    |> fix_likes
+    |> fix_addressing
+  end
+
+  def fix_addressing_list(map, field) do
+    if is_binary(map[field]) do
+      map
+      |> Map.put(field, [map[field]])
+    else
+      map
+    end
+  end
+
+  def fix_addressing(map) do
+    map
+    |> fix_addressing_list("to")
+    |> fix_addressing_list("cc")
+    |> fix_addressing_list("bto")
+    |> fix_addressing_list("bcc")
+  end
+
+  def fix_actor(%{"attributedTo" => actor} = object) do
+    object
+    |> Map.put("actor", get_actor(%{"actor" => actor}))
+  end
+
+  def fix_likes(%{"likes" => likes} = object)
+      when is_bitstring(likes) do
+    # Check for standardisation
+    # This is what Peertube does
+    # curl -H 'Accept: application/activity+json' $likes | jq .totalItems
+    object
+    |> Map.put("likes", [])
+    |> Map.put("like_count", 0)
+  end
+
+  def fix_likes(object) do
+    object
   end
 
   def fix_in_reply_to(%{"inReplyTo" => in_reply_to_id} = object)
@@ -54,8 +109,11 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   def fix_in_reply_to(object), do: object
 
   def fix_context(object) do
+    context = object["context"] || object["conversation"] || Utils.generate_context_id()
+
     object
-    |> Map.put("context", object["conversation"])
+    |> Map.put("context", context)
+    |> Map.put("conversation", context)
   end
 
   def fix_attachments(object) do
@@ -122,7 +180,14 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do
   # TODO: validate those with a Ecto scheme
   # - tags
   # - emoji
-  def handle_incoming(%{"type" => "Create", "object" => %{"type" => "Note"} = object} = data) do
+  def handle_incoming(%{"type" => "Create", "object" => %{"type" => objtype} = object} = data)
+      when objtype in ["Article", "Note", "Video"] do
+    actor = get_actor(data)
+
+    data =
+      Map.put(data, "actor", actor)
+      |> fix_addressing
+
     with nil <- Activity.get_create_activity_by_object_ap_id(object["id"]),
          %User{} = user <- User.get_or_fetch_by_ap_id(data["actor"]) do
       object = fix_object(data["object"])