distraction.party/lib/pleroma/plugs/instance_static.ex
2020-05-02 08:28:42 +02:00

58 lines
1.5 KiB
Elixir

# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Plugs.InstanceStatic do
require Pleroma.Constants
@moduledoc """
This is a shim to call `Plug.Static` but with runtime `from` configuration.
Mountpoints are defined directly in the module to avoid calling the configuration for every request including non-static ones.
"""
@behaviour Plug
def file_path(path) do
instance_path =
Path.join(Pleroma.Config.get([:instance, :static_dir], "instance/static/"), path)
if File.exists?(instance_path) do
instance_path
else
Path.join(Application.app_dir(:pleroma, "priv/static/"), path)
end
end
def init(opts) do
opts
|> Keyword.put(:from, "__unconfigured_instance_static_plug")
|> Keyword.put(:at, "/__unconfigured_instance_static_plug")
|> Plug.Static.init()
end
for only <- Pleroma.Constants.static_only_files() do
at = Plug.Router.Utils.split("/")
def call(%{request_path: "/" <> unquote(only) <> _} = conn, opts) do
call_static(
conn,
opts,
unquote(at),
Pleroma.Config.get([:instance, :static_dir], "instance/static")
)
end
end
def call(conn, _) do
conn
end
defp call_static(conn, opts, at, from) do
opts =
opts
|> Map.put(:from, from)
|> Map.put(:at, at)
Plug.Static.call(conn, opts)
end
end