Parse user's bio on register

lib/pleroma/user.ex

@@ -4,6 +4,8 @@ defmodule Pleroma.User do
   import Ecto.{Changeset, Query}
   alias Pleroma.{Repo, User, Object, Web, Activity, Notification}
   alias Comeonin.Pbkdf2
+  alias Pleroma.Formatter
+  alias Pleroma.Web.CommonAPI.Utils, as: CommonUtils
   alias Pleroma.Web.{OStatus, Websub, OAuth}
   alias Pleroma.Web.ActivityPub.{Utils, ActivityPub}
 
@@ -802,4 +804,18 @@ defmodule Pleroma.User do
         :error
     end
   end
+
+  def parse_bio(bio, user \\ %User{info: %{source_data: %{}}}) do
+    mentions = Formatter.parse_mentions(bio)
+    tags = Formatter.parse_tags(bio)
+
+    emoji =
+      (user.info.source_data["tag"] || [])
+      |> Enum.filter(fn %{"type" => t} -> t == "Emoji" end)
+      |> Enum.map(fn %{"icon" => %{"url" => url}, "name" => name} ->
+        {String.trim(name, ":"), url}
+      end)
+
+    CommonUtils.format_input(bio, mentions, tags, "text/plain") |> Formatter.emojify(emoji)
+  end
 end

lib/pleroma/web/twitter_api/twitter_api.ex

@@ -132,7 +132,7 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
     params = %{
       nickname: params["nickname"],
       name: params["fullname"],
-      bio: params["bio"],
+      bio: User.parse_bio(params["bio"]),
       email: params["email"],
       password: params["password"],
       password_confirmation: params["confirm"]

lib/pleroma/web/twitter_api/twitter_api_controller.ex

@@ -448,27 +448,16 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
     User.Info.profile_update(user.info, info_params)
   end
 
-  defp add_profile_emoji(user, params) do
+  defp parse_profile_bio(user, params) do
     if bio = params["description"] do
-      mentions = Formatter.parse_mentions(bio)
-      tags = Formatter.parse_tags(bio)
-
-      emoji =
-        (user.info.source_data["tag"] || [])
-        |> Enum.filter(fn %{"type" => t} -> t == "Emoji" end)
-        |> Enum.map(fn %{"icon" => %{"url" => url}, "name" => name} ->
-          {String.trim(name, ":"), url}
-        end)
-
-      bio_html = CommonUtils.format_input(bio, mentions, tags, "text/plain")
-      Map.put(params, "bio", bio_html |> Formatter.emojify(emoji))
+      Map.put(params, "bio", User.parse_bio(bio, user))
     else
       params
     end
   end
 
   def update_profile(%{assigns: %{user: user}} = conn, params) do
-    params = add_profile_emoji(user, params)
+    params = parse_profile_bio(user, params)
     info_cng = build_info_cng(user, params)
 
     with changeset <- User.update_changeset(user, params),