From 0efd0e460f19a39c6dd47dcd6c2e0162dd2c36aa Mon Sep 17 00:00:00 2001
From: Dylan Wagstaff <dylan@silverstripe.com>
Date: Mon, 25 Nov 2019 19:05:34 +1300
Subject: [PATCH] FIX Unset parent mime part body, not just children

The message itself is a MimePart, where the PGP signer will set
the contents as children (and clear existing ones), it wrongly did
not unset the body - meaning that a message as a single body was to
be transmitted as plain text as the message body, then also encrypted
as an attachemnt. This made PGP encryption pointeless, and is a rather
glaring bug.
---
 lib/SwiftSignerCryptGPG.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/SwiftSignerCryptGPG.php b/lib/SwiftSignerCryptGPG.php
index 48e8f43..a236e5f 100644
--- a/lib/SwiftSignerCryptGPG.php
+++ b/lib/SwiftSignerCryptGPG.php
@@ -87,6 +87,7 @@ public function signMessage(Swift_Message $message)
         // Prepare message final form
         $message
             ->setEncoder($encoder)
+            ->setBody(null)
             ->setChildren([$pgpmime, $encryptedMessage]);
 
         $type = $message->getHeaders()->get('Content-Type');