Merge branch 'maintenance/copyright-2019' into 'develop'
[akkoma] / lib / pleroma / plugs / instance_static.ex
1 # Pleroma: A lightweight social networking server
2 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
3 # SPDX-License-Identifier: AGPL-3.0-only
4
5 defmodule Pleroma.Plugs.InstanceStatic do
6 @moduledoc """
7 This is a shim to call `Plug.Static` but with runtime `from` configuration.
8
9 Mountpoints are defined directly in the module to avoid calling the configuration for every request including non-static ones.
10 """
11 @behaviour Plug
12
13 def file_path(path) do
14 instance_path =
15 Path.join(Pleroma.Config.get([:instance, :static_dir], "instance/static/"), path)
16
17 if File.exists?(instance_path) do
18 instance_path
19 else
20 Path.join(Application.app_dir(:pleroma, "priv/static/"), path)
21 end
22 end
23
24 @only ~w(index.html static emoji packs sounds images instance favicon.png)
25
26 def init(opts) do
27 opts
28 |> Keyword.put(:from, "__unconfigured_instance_static_plug")
29 |> Keyword.put(:at, "/__unconfigured_instance_static_plug")
30 |> Plug.Static.init()
31 end
32
33 for only <- @only do
34 at = Plug.Router.Utils.split("/")
35
36 def call(conn = %{request_path: "/" <> unquote(only) <> _}, opts) do
37 call_static(
38 conn,
39 opts,
40 unquote(at),
41 Pleroma.Config.get([:instance, :static_dir], "instance/static")
42 )
43 end
44 end
45
46 def call(conn, _) do
47 conn
48 end
49
50 defp call_static(conn, opts, at, from) do
51 opts =
52 opts
53 |> Map.put(:from, from)
54 |> Map.put(:at, at)
55
56 Plug.Static.call(conn, opts)
57 end
58 end