From 43e5024676346a75600250e5d879e3eb38073166 Mon Sep 17 00:00:00 2001
From: Virtually Nick <vnick@apache.org>
Date: Fri, 3 Apr 2020 13:16:53 -0400
Subject: [PATCH] GUACAMOLE-770: Regenerate code when field is empty.

---
 .../guacamole/auth/totp/user/UserVerificationService.java       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/extensions/guacamole-auth-totp/src/main/java/org/apache/guacamole/auth/totp/user/UserVerificationService.java b/extensions/guacamole-auth-totp/src/main/java/org/apache/guacamole/auth/totp/user/UserVerificationService.java
index 2414ee872..59e5a7126 100644
--- a/extensions/guacamole-auth-totp/src/main/java/org/apache/guacamole/auth/totp/user/UserVerificationService.java
+++ b/extensions/guacamole-auth-totp/src/main/java/org/apache/guacamole/auth/totp/user/UserVerificationService.java
@@ -108,7 +108,7 @@ public class UserVerificationService {
 
         // If no key is defined, attempt to generate a new key
         String secret = attributes.get(TOTPUser.TOTP_KEY_SECRET_ATTRIBUTE_NAME);
-        if (secret == null) {
+        if (secret == null || secret.isEmpty()) {
 
             // Generate random key for user
             TOTPGenerator.Mode mode = confService.getMode();