From 6c703e122aad0be3198cb4e21fe9bd8ccd5ea5a7 Mon Sep 17 00:00:00 2001
From: Caio Carvalho <caiojcarvalho@gmail.com>
Date: Thu, 16 Aug 2018 18:59:47 +0200
Subject: [PATCH] Checking if the command is not an empty string.

---
 src/util/externalcommandhelper.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/util/externalcommandhelper.cpp b/src/util/externalcommandhelper.cpp
index 3778333..4d07394 100644
--- a/src/util/externalcommandhelper.cpp
+++ b/src/util/externalcommandhelper.cpp
@@ -267,6 +267,11 @@ QVariantMap ExternalCommandHelper::start(const QByteArray& signature, const quin
         return reply;
     }
 
+    if (command.isEmpty()) {
+        reply[QStringLiteral("success")] = false;
+        return reply;
+    }
+
     QByteArray request;
     request.setNum(nonce);
     request.append(command.toUtf8());