forked from potsda.mn/mobilizon
39 lines
1.5 KiB
Elixir
39 lines
1.5 KiB
Elixir
defmodule Mobilizon.Web.ExportController do
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@moduledoc """
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Controller to serve exported files
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"""
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use Mobilizon.Web, :controller
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plug(:put_layout, false)
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action_fallback(Mobilizon.Web.FallbackController)
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alias Mobilizon.Export
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import Mobilizon.Service.Export.Participants.Common, only: [enabled_formats: 0, export_path: 1]
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import Mobilizon.Web.Gettext, only: [dgettext: 3]
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# sobelow_skip ["Traversal.SendDownload"]
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@spec export(Plug.Conn.t(), map) :: {:error, :not_found} | Plug.Conn.t()
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def export(conn, %{"format" => format, "file" => file}) do
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if format in enabled_formats() do
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case Export.get_export(file, "event_participants", format) do
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%Export{file_name: file_name, file_path: file_path} ->
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local_path = Path.join(export_path(format), file_path)
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# We're using encode: false to disable escaping the filename with URI.encode_www_form/1
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# but it may introduce an security issue if the event title wasn't properly sanitized
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# https://github.com/phoenixframework/phoenix/pull/3344
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# https://owasp.org/www-community/attacks/HTTP_Response_Splitting
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send_download(conn, {:file, local_path}, filename: file_name, encode: false)
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nil ->
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{:error, :not_found}
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end
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else
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send_resp(
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conn,
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404,
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dgettext("errors", "Export to format %{format} is not enabled on this instance",
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format: format
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)
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)
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end
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end
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end
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