From bd0551b22076b82a6d49e9f7a2b2e0c90a1b2326 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Fri, 05 Feb 2016 07:25:27 -0500
Subject: [PATCH] Secure also downloads of addressbook exports, managesieve script exports and Enigma keys exports

---
 program/lib/Roundcube/rcube_mime.php |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/program/lib/Roundcube/rcube_mime.php b/program/lib/Roundcube/rcube_mime.php
index 1954856..56406b1 100644
--- a/program/lib/Roundcube/rcube_mime.php
+++ b/program/lib/Roundcube/rcube_mime.php
@@ -155,7 +155,7 @@
      */
     public static function decode_mime_string($input, $fallback = null)
     {
-        $default_charset = !empty($fallback) ? $fallback : self::get_charset();
+        $default_charset = $fallback ?: self::get_charset();
 
         // rfc: all line breaks or other characters not found
         // in the Base64 Alphabet must be ignored by decoding software

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