akkoma/lib/pleroma/uploaders/s3.ex
ilja 053276ef6c Refactor upload, get url from modules
To get the url and base url, we had a function in upload.ex.
This included a `case` to check on what module is used.
This means that adding a new upload module implies changing code besides just adding a new module.

Here we try to get the logic properly into the respective modules.
This doesn't add new functionality, but should make it easier to add new uploaders in the future.
2023-03-12 10:13:07 +01:00

102 lines
2.6 KiB
Elixir

# 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
@impl true
def base_url() do
upload_base_url = Config.get([Pleroma.Upload, :base_url])
public_endpoint = Config.get([Pleroma.Uploaders.S3, :public_endpoint])
bucket = Config.get([Pleroma.Uploaders.S3, :bucket])
truncated_namespace = Config.get([Pleroma.Uploaders.S3, :truncated_namespace])
namespace = Config.get([Pleroma.Uploaders.S3, :bucket_namespace])
bucket_with_namespace =
cond do
!is_nil(truncated_namespace) ->
truncated_namespace
!is_nil(namespace) ->
namespace <> ":" <> bucket
true ->
bucket
end
if public_endpoint do
Path.join([public_endpoint, bucket_with_namespace])
else
Path.join([upload_base_url, bucket_with_namespace])
end
end
@regex Regex.compile!("[^0-9a-zA-Z!.*/'()_-]")
def strict_encode(name) do
String.replace(name, @regex, "-")
end
end