# Pleroma: A lightweight social networking server # Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/> # SPDX-License-Identifier: AGPL-3.0-only defmodule Pleroma.Uploaders.S3 do @behaviour Pleroma.Uploaders.Uploader require Logger alias Pleroma.Config # The file name is re-encoded with S3's constraints here to comply with previous # links with less strict filenames @impl true def get_file(file) do {:ok, {:url, Path.join([ Pleroma.Upload.base_url(), strict_encode(URI.decode(file)) ])}} end @impl true def put_file(%Pleroma.Upload{} = upload) do config = Config.get([__MODULE__]) bucket = Keyword.get(config, :bucket) streaming = Keyword.get(config, :streaming_enabled) s3_name = strict_encode(upload.path) op = if streaming do upload.tempfile |> ExAws.S3.Upload.stream_file() |> ExAws.S3.upload(bucket, s3_name, [ {:acl, :public_read}, {:content_type, upload.content_type} ]) else {:ok, file_data} = File.read(upload.tempfile) ExAws.S3.put_object(bucket, s3_name, file_data, [ {:acl, :public_read}, {:content_type, upload.content_type} ]) end case ExAws.request(op) do {:ok, _} -> {:ok, {:file, s3_name}} error -> Logger.error("#{__MODULE__}: #{inspect(error)}") {:error, "S3 Upload failed"} end end @impl true def delete_file(file) do [__MODULE__, :bucket] |> Config.get() |> ExAws.S3.delete_object(file) |> ExAws.request() |> case do {:ok, %{status_code: 204}} -> :ok error -> {:error, inspect(error)} end end @regex Regex.compile!("[^0-9a-zA-Z!.*/'()_-]") def strict_encode(name) do String.replace(name, @regex, "-") end end