akkoma/lib/pleroma/web/plugs/ensure_http_signature_plug.ex
2022-12-19 20:41:48 +00:00

31 lines
836 B
Elixir

# Akkoma: Magically expressive social media
# Copyright © 2022-2022 Akkoma Authors <https://akkoma.dev/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.Plugs.EnsureHTTPSignaturePlug do
@moduledoc """
Ensures HTTP signature has been validated by previous plugs on ActivityPub requests.
"""
import Plug.Conn
import Phoenix.Controller, only: [get_format: 1, text: 2]
alias Pleroma.Config
def init(options) do
options
end
def call(%{assigns: %{valid_signature: true}} = conn, _), do: conn
def call(conn, _) do
with true <- get_format(conn) in ["json", "activity+json"],
true <- Config.get([:activitypub, :authorized_fetch_mode], true) do
conn
|> put_status(:unauthorized)
|> text("Request not signed")
|> halt()
else
_ -> conn
end
end
end