Revert "Fix bug where session was destoryed with window close (#7251)"

This reverts commit 32fac136db.

CHANGELOG

@@ -17,7 +17,6 @@ CHANGELOG Roundcube Webmail
 - Fix handling keyservers configured with protocol prefix (#7295)
 - Markasjunk: Fix marking as spam/ham on moving messages with Move menu (#7189)
 - Markasjunk: Fix bug where moving to Junk was failing on messages selected with Select > All (#7206)
-- Fix bug where session was destoryed with window close (#7251)
 - Fix so imap error message is displayed to the user on folder create/update (#7245)
 - Fix bug where a special folder couldn't be created if a special-use flag is not supported (#7147)
 

program/lib/Roundcube/rcube.php

@@ -457,7 +457,8 @@ class rcube
             ini_set('session.gc_maxlifetime', $lifetime * 2);
         }
 
-        ini_set('session.cookie_lifetime', $lifetime);
+        // set session cookie lifetime so it never expires (#5961)
+        ini_set('session.cookie_lifetime', 0);
         ini_set('session.cookie_secure', $is_secure);
         ini_set('session.name', $sess_name ?: 'roundcube_sessid');
         ini_set('session.use_cookies', 1);

program/lib/Roundcube/rcube_session.php

@@ -694,7 +694,7 @@ abstract class rcube_session
     public function set_auth_cookie()
     {
         $this->cookie = $this->_mkcookie($this->now);
-        rcube_utils::setcookie($this->cookiename, $this->cookie, time() + $this->lifetime);
+        rcube_utils::setcookie($this->cookiename, $this->cookie, 0);
         $_COOKIE[$this->cookiename] = $this->cookie;
     }