CommonAPI: add emoji to user source data on update

lib/pleroma/web/common_api/common_api.ex

@@ -1,5 +1,5 @@
 defmodule Pleroma.Web.CommonAPI do
-  alias Pleroma.{Repo, Activity, Object}
+  alias Pleroma.{User, Repo, Activity, Object}
   alias Pleroma.Web.ActivityPub.ActivityPub
   alias Pleroma.Formatter
 
@@ -118,6 +118,18 @@ defmodule Pleroma.Web.CommonAPI do
   end
 
   def update(user) do
+    user =
+      with emoji <- emoji_from_profile(user),
+           source_data <- (user.info["source_data"] || %{}) |> Map.put("tag", emoji),
+           new_info <- Map.put(user.info, "source_data", source_data),
+           change <- User.info_changeset(user, %{info: new_info}),
+           {:ok, user} <- User.update_and_set_cache(change) do
+        user
+      else
+        _e ->
+          user
+      end
+
     ActivityPub.update(%{
       local: true,
       to: [user.follower_address],

lib/pleroma/web/common_api/utils.ex

@@ -1,6 +1,7 @@
 defmodule Pleroma.Web.CommonAPI.Utils do
   alias Pleroma.{Repo, Object, Formatter, Activity}
   alias Pleroma.Web.ActivityPub.Utils
+  alias Pleroma.Web.Endpoint
   alias Pleroma.User
   alias Calendar.Strftime
   alias Comeonin.Pbkdf2
@@ -196,4 +197,15 @@ defmodule Pleroma.Web.CommonAPI.Utils do
       _ -> {:error, "Invalid password."}
     end
   end
+
+  def emoji_from_profile(%{info: info} = user) do
+    (Formatter.get_emoji(user.bio) ++ Formatter.get_emoji(user.name))
+    |> Enum.map(fn {shortcode, url} ->
+      %{
+        "type" => "Emoji",
+        "icon" => %{"url" => "#{Endpoint.url()}#{url}"},
+        "name" => ":#{shortcode}:"
+      }
+    end)
+  end
 end