From 1df6a5372c89d8bb9c31c024f86e6198134c56a3 Mon Sep 17 00:00:00 2001
From: Colin Gagnaire <cgagnaire@centreon.com>
Date: Wed, 17 Apr 2019 14:16:25 +0200
Subject: [PATCH] fix lwp backend authentication verif

---
 centreon/plugins/backend/http/lwp.pm | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/centreon/plugins/backend/http/lwp.pm b/centreon/plugins/backend/http/lwp.pm
index e2186490e..bce6c8760 100644
--- a/centreon/plugins/backend/http/lwp.pm
+++ b/centreon/plugins/backend/http/lwp.pm
@@ -241,8 +241,9 @@ sub request {
     if (!$self->{output}->is_status(value => $status, compare => 'ok', litteral => 1)) {
         my $short_msg = $self->{response}->status_line;
         if ($short_msg =~ /^401/) {
-            my ($authenticate) = $self->{response}->www_authenticate =~ /(\S+)/;
-            $short_msg .= ' (' . $authenticate . ' authentication expected)';
+            my $authenticate = '';
+            $short_msg .= ' (' . $1 . ' authentication expected)' if (defined($self->{response}->www_authenticate) &&
+                $self->{response}->www_authenticate =~ /(\S+)/);
         }
 
         $self->{output}->output_add(long_msg => $self->{response}->content, debug => 1);