git.squeep.com Git - akkoma/blob - lib/pleroma/web/instance_document.ex

   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.InstanceDocument do
   6   alias Pleroma.Config
   7   alias Pleroma.Web.Endpoint
   8
   9   @instance_documents %{
  10     "terms-of-service" => "/static/terms-of-service.html",
  11     "instance-panel" => "/instance/panel.html"
  12   }
  13
  14   @spec get(String.t()) :: {:ok, String.t()} | {:error, atom()}
  15   def get(document_name) do
  16     case Map.fetch(@instance_documents, document_name) do
  17       {:ok, path} -> {:ok, path}
  18       _ -> {:error, :not_found}
  19     end
  20   end
  21
  22   @spec put(String.t(), String.t()) :: {:ok, String.t()} | {:error, atom()}
  23   def put(document_name, origin_path) do
  24     with {_, {:ok, destination_path}} <-
  25            {:instance_document, Map.fetch(@instance_documents, document_name)},
  26          :ok <- put_file(origin_path, destination_path) do
  27       {:ok, Path.join(Endpoint.url(), destination_path)}
  28     else
  29       {:instance_document, :error} -> {:error, :not_found}
  30       error -> error
  31     end
  32   end
  33
  34   @spec delete(String.t()) :: :ok | {:error, atom()}
  35   def delete(document_name) do
  36     with {_, {:ok, path}} <- {:instance_document, Map.fetch(@instance_documents, document_name)},
  37          instance_static_dir_path <- instance_static_dir(path),
  38          :ok <- File.rm(instance_static_dir_path) do
  39       :ok
  40     else
  41       {:instance_document, :error} -> {:error, :not_found}
  42       {:error, :enoent} -> {:error, :not_found}
  43       error -> error
  44     end
  45   end
  46
  47   defp put_file(origin_path, destination_path) do
  48     with destination <- instance_static_dir(destination_path),
  49          {_, :ok} <- {:mkdir_p, File.mkdir_p(Path.dirname(destination))},
  50          {_, {:ok, _}} <- {:copy, File.copy(origin_path, destination)} do
  51       :ok
  52     else
  53       {error, _} -> {:error, error}
  54     end
  55   end
  56
  57   defp instance_static_dir(filename) do
  58     [:instance, :static_dir]
  59     |> Config.get!()
  60     |> Path.join(filename)
  61   end
  62 end