From 8be8626578862eccd9fac53f0a1b7e4e20c1d6e2 Mon Sep 17 00:00:00 2001
From: Nick Couchman <nick.couchman@yahoo.com>
Date: Tue, 11 Apr 2017 09:18:17 -0400
Subject: [PATCH] GUACAMOLE-197: Consider challengeResponse empty value an
 acceptable response.

---
 .../guacamole/auth/radius/AuthenticationProviderService.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/AuthenticationProviderService.java b/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/AuthenticationProviderService.java
index bb2e203b7..2b4f98192 100644
--- a/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/AuthenticationProviderService.java
+++ b/extensions/guacamole-auth-radius/src/main/java/org/apache/guacamole/auth/radius/AuthenticationProviderService.java
@@ -111,7 +111,7 @@ public class AuthenticationProviderService {
         String challengeResponse = request.getParameter(RadiusChallengeResponseField.PARAMETER_NAME);
 
         // We do not have a challenge response, so we proceed normally
-        if (challengeResponse == null || challengeResponse.isEmpty()) {
+        if (challengeResponse == null) {
 
             // Initialize Radius Packet and try to authenticate
             try {