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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.WebFinger.WebFingerController do
   6   use Pleroma.Web, :controller
   7
   8   alias Pleroma.Web.WebFinger
   9
  10   plug(Pleroma.Web.Plugs.SetFormatPlug)
  11   plug(Pleroma.Web.Plugs.FederatingPlug)
  12
  13   def host_meta(conn, _params) do
  14     xml = WebFinger.host_meta()
  15
  16     conn
  17     |> put_resp_content_type("application/xrd+xml")
  18     |> send_resp(200, xml)
  19   end
  20
  21   def webfinger(%{assigns: %{format: format}} = conn, %{"resource" => resource})
  22       when format in ["xml", "xrd+xml"] do
  23     with {:ok, response} <- WebFinger.webfinger(resource, "XML") do
  24       conn
  25       |> put_resp_content_type("application/xrd+xml")
  26       |> send_resp(200, response)
  27     else
  28       _e -> send_resp(conn, 404, "Couldn't find user")
  29     end
  30   end
  31
  32   def webfinger(%{assigns: %{format: format}} = conn, %{"resource" => resource})
  33       when format in ["json", "jrd+json"] do
  34     with {:ok, response} <- WebFinger.webfinger(resource, "JSON") do
  35       json(conn, response)
  36     else
  37       _e ->
  38         conn
  39         |> put_status(:not_found)
  40         |> json("Couldn't find user")
  41     end
  42   end
  43
  44   def webfinger(conn, _params), do: send_resp(conn, 400, "Bad Request")
  45 end