107 lines
2.8 KiB
Elixir
107 lines
2.8 KiB
Elixir
# Portions of this file are derived from Pleroma:
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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# Upstream: https://git.pleroma.social/pleroma/pleroma/blob/develop/lib/pleroma/uploaders/local.ex
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defmodule Mobilizon.Web.Upload.Uploader.Local do
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@moduledoc """
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Local uploader for files
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"""
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@behaviour Mobilizon.Web.Upload.Uploader
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alias Mobilizon.Config
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alias Mobilizon.Web.Upload
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@impl true
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def get_file(_) do
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{:ok, {:static_dir, upload_path()}}
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end
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@impl true
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@spec put_file(Upload.t()) ::
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:ok | {:ok, {:file, String.t()}} | {:error, :tempfile_no_longer_exists}
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def put_file(%Upload{path: initial_path, tempfile: tempfile}) do
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{path, file} = local_path(initial_path)
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result_file = Path.join(path, file)
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if File.exists?(result_file) do
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# If the resulting file already exists, it's because of the Dedupe filter
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:ok
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else
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if File.exists?(tempfile) do
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File.cp!(tempfile, result_file)
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{:ok, {:file, initial_path}}
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else
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{:error, :tempfile_no_longer_exists}
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end
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end
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end
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@impl true
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@spec remove_file(String.t()) ::
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{:ok, {:file, String.t()}}
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| {:error, :folder_not_empty}
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| {:error, :enofile}
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| {:error, File.posix()}
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def remove_file(path) do
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{path, file} = local_path(path)
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full_path = Path.join(path, file)
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if File.exists?(full_path) do
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do_remove_file(path, full_path)
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else
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{:error, :enofile}
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end
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end
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@spec do_remove_file(String.t(), String.t()) ::
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{:ok, {:file, String.t()}}
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| {:error, :folder_not_empty}
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| {:error, File.posix()}
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defp do_remove_file(path, full_path) do
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case File.rm(full_path) do
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:ok ->
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case remove_folder(path) do
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:ok ->
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{:ok, {:file, path}}
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{:error, err} ->
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{:error, err}
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end
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{:error, err} ->
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{:error, err}
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end
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end
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@spec remove_folder(String.t()) :: :ok | {:error, :folder_not_empty} | {:error, File.posix()}
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defp remove_folder(path) do
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with {:subfolder, true} <- {:subfolder, path != upload_path()},
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{:empty_folder, {:ok, [] = _files}} <- {:empty_folder, File.ls(path)} do
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File.rmdir(path)
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else
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{:subfolder, _} -> :ok
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{:empty_folder, _} -> {:error, :folder_not_empty}
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end
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end
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@spec local_path(String.t()) :: {String.t(), String.t()}
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defp local_path(path) do
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case Enum.reverse(String.split(path, "/", trim: true)) do
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[file] ->
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{upload_path(), file}
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[file | folders] ->
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path = Path.join([upload_path()] ++ Enum.reverse(folders))
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File.mkdir_p!(path)
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{path, file}
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end
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end
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@spec upload_path :: String.t()
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def upload_path do
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Config.get!([__MODULE__, :uploads])
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end
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end
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