+ |> 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))
+ else
+ Logger.debug("No signature header!")
+ 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