X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fplugs%2Fhttp_signature.ex;h=036e2a7739e0ca16fb05412d15249fa6594c2ab3;hb=9cbf17d59fe34a760f8a4f94bc60f78b38ccba06;hp=23d22a712fcf9839490b9d4cf44de3a370c7cf9b;hpb=219dca1b00a60805545dd3de433de285cc944af5;p=akkoma
diff --git a/lib/pleroma/plugs/http_signature.ex b/lib/pleroma/plugs/http_signature.ex
index 23d22a712..036e2a773 100644
--- a/lib/pleroma/plugs/http_signature.ex
+++ b/lib/pleroma/plugs/http_signature.ex
@@ -1,9 +1,10 @@
# Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors
+# Copyright © 2017-2020 Pleroma Authors
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.Plugs.HTTPSignaturePlug do
import Plug.Conn
+ import Phoenix.Controller, only: [get_format: 1, text: 2]
require Logger
def init(options) do
@@ -15,25 +16,27 @@ defmodule Pleroma.Web.Plugs.HTTPSignaturePlug do
end
def call(conn, _opts) do
- headers = get_req_header(conn, "signature")
- signature = Enum.at(headers, 0)
+ if get_format(conn) == "activity+json" do
+ conn
+ |> maybe_assign_valid_signature()
+ |> maybe_require_signature()
+ else
+ conn
+ end
+ end
- if signature do
+ defp maybe_assign_valid_signature(conn) do
+ if has_signature_header?(conn) do
# set (request-target) header to the appropriate value
# we also replace the digest header with the one we computed
- conn =
- conn
- |> put_req_header(
- "(request-target)",
- String.downcase("#{conn.method}") <> " #{conn.request_path}"
- )
+ request_target = String.downcase("#{conn.method}") <> " #{conn.request_path}"
conn =
- if conn.assigns[:digest] do
- conn
- |> put_req_header("digest", conn.assigns[:digest])
- else
- conn
+ conn
+ |> put_req_header("(request-target)", request_target)
+ |> case do
+ %{assigns: %{digest: digest}} = conn -> put_req_header(conn, "digest", digest)
+ conn -> conn
end
assign(conn, :valid_signature, HTTPSignatures.validate_conn(conn))
@@ -42,4 +45,21 @@ defmodule Pleroma.Web.Plugs.HTTPSignaturePlug do
conn
end
end
+
+ defp has_signature_header?(conn) do
+ conn |> get_req_header("signature") |> Enum.at(0, false)
+ end
+
+ defp maybe_require_signature(%{assigns: %{valid_signature: true}} = conn), do: conn
+
+ defp maybe_require_signature(conn) do
+ if Pleroma.Config.get([:activitypub, :authorized_fetch_mode], false) do
+ conn
+ |> put_status(:unauthorized)
+ |> text("Request not signed")
+ |> halt()
+ else
+ conn
+ end
+ end
end