Shorten names in links.

lib/pleroma/web/twitter_api/utils.ex

@@ -38,7 +38,8 @@ defmodule Pleroma.Web.TwitterAPI.Utils do
     end)
 
     Enum.reduce(mentions, step_one, fn ({match, %User{ap_id: ap_id}, uuid}, text) ->
-      String.replace(text, uuid, "<a href='#{ap_id}'>#{match}</a>")
+      short_match = String.split(match, "@") |> tl() |> hd()
+      String.replace(text, uuid, "<a href='#{ap_id}'>@#{short_match}</a>")
     end)
   end
 

test/web/twitter_api/twitter_api_test.exs

@@ -263,7 +263,7 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPITest do
     archaeme_remote = insert(:user, %{nickname: "archaeme@archae.me"})
 
     mentions = TwitterAPI.parse_mentions(text)
-    expected_text = "<a href='#{gsimg.ap_id}'>@gsimg</a> According to <a href='#{archaeme.ap_id}'>@archaeme</a>, that is @daggsy. Also hello <a href='#{archaeme_remote.ap_id}'>@archaeme@archae.me</a>"
+    expected_text = "<a href='#{gsimg.ap_id}'>@gsimg</a> According to <a href='#{archaeme.ap_id}'>@archaeme</a>, that is @daggsy. Also hello <a href='#{archaeme_remote.ap_id}'>@archaeme</a>"
 
     assert Utils.add_user_links(text, mentions) == expected_text
   end