From edd9c31d6c69f4f7ed61ba53346c84786e547908 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <machniak@kolabsys.com>
Date: Fri, 23 Nov 2018 15:35:10 +0000
Subject: [PATCH] Skip registering session handlers when session already exists

.. for a specific use case when I want to create additional rcube_session object
for discrete operations on another session.
---
 program/lib/Roundcube/rcube_session.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/program/lib/Roundcube/rcube_session.php b/program/lib/Roundcube/rcube_session.php
index 32faed526..be8c7d662 100644
--- a/program/lib/Roundcube/rcube_session.php
+++ b/program/lib/Roundcube/rcube_session.php
@@ -102,6 +102,11 @@ abstract class rcube_session
      */
     public function register_session_handler()
     {
+        if (session_id()) {
+            // Session already exists, skip
+            return;
+        }
+
         ini_set('session.serialize_handler', 'php');
 
         // set custom functions for PHP session management