Add externalprofile to TwAPI.

lib/pleroma/web/router.ex

@@ -38,6 +38,8 @@ defmodule Pleroma.Web.Router do
     get "/statusnet/conversation/:id", TwitterAPI.Controller, :fetch_conversation
 
     post "/account/register", TwitterAPI.Controller, :register
+
+    get "/externalprofile/show", TwitterAPI.Controller, :external_profile
   end
 
   scope "/api", Pleroma.Web do

lib/pleroma/web/twitter_api/twitter_api.ex

@@ -350,4 +350,12 @@ defmodule Pleroma.Web.TwitterAPI.TwitterAPI do
       {:error, "No such conversation"}
     end
   end
+
+  def get_external_profile(for_user, uri) do
+    with %User{} = user <- User.get_cached_by_ap_id(uri) do
+      {:ok, UserRepresenter.to_map(user, %{for: for_user})}
+    else _e ->
+      {:error, "Couldn't find user"}
+    end
+  end
 end

lib/pleroma/web/twitter_api/twitter_api_controller.ex

@@ -207,6 +207,14 @@ defmodule Pleroma.Web.TwitterAPI.Controller do
     |> json_reply(200, response)
   end
 
+  def external_profile(%{assigns: %{user: current_user}} = conn, %{"profileurl" => uri}) do
+    with {:ok, user_map} <- TwitterAPI.get_external_profile(current_user, uri),
+         response <- Poison.encode!(user_map) do
+      conn
+      |> json_reply(200, response)
+    end
+  end
+
   defp bad_request_reply(conn, error_message) do
     json = error_json(conn, error_message)
     json_reply(conn, 400, json)