From 91bf568114b3181f340d29e6491ea0008ae9694f Mon Sep 17 00:00:00 2001
From: Dobrica Pavlinusic <dpavlin@rot13.org>
Date: Fri, 23 Mar 2012 09:54:25 +0100
Subject: [PATCH] Bug 7810 - C4/Auth.pm - on plack restart session is undefined

So we shouldn't try to delete it. This produces application error
instead of redirection to login page.

I had similar problems with CGI, especially when session in browser
is still active, and one on filesystem or database is already expired.

Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>
Solved the problem when my Plack installation started acting up due to
stale cookies.

Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>
---
 C4/Auth.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/C4/Auth.pm b/C4/Auth.pm
index 3cfc69fbae..c97046a1ec 100644
--- a/C4/Auth.pm
+++ b/C4/Auth.pm
@@ -690,7 +690,7 @@ sub checkauth {
         elsif ( $lasttime < time() - $timeout ) {
             # timed logout
             $info{'timed_out'} = 1;
-            $session->delete();
+            $session->delete() if $session;
             C4::Context->_unset_userenv($sessionID);
             #_session_log(sprintf "%20s from %16s logged out at %30s (inactivity).\n", $userid,$ip,(strftime "%c",localtime));
             $userid    = undef;
-- 
2.39.5