A script to GC sessions correctly

scripts/sessiongc.php

@@ -0,0 +1,36 @@
+#!/usr/bin/env php
+<?php
+/*
+ * Laconica - a distributed open-source microblogging tool
+ * Copyright (C) 2008, 2009, Control Yourself, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+define('INSTALLDIR', realpath(dirname(__FILE__) . '/..'));
+
+$helptext = <<<END_OF_GC_HELP
+sessiongc.php
+
+Delete old sessions from the server
+
+END_OF_GC_HELP;
+
+require_once INSTALLDIR.'/scripts/commandline.inc';
+
+$maxlifetime = ini_get('session.gc_maxlifetime');
+
+print "Deleting sessions older than $maxlifetime seconds.\n";
+
+Session::gc($maxlifetime);