Added a session handler class for mysql based session storage.

install/sql/incremental/upd_0002.sql

+CREATE TABLE `sys_session` (
+  `session_id` varchar(32) NOT NULL default '',
+  `date_created` datetime NOT NULL default '0000-00-00 00:00:00',
+  `last_updated` datetime NOT NULL default '0000-00-00 00:00:00',
+  `session_data` longtext,
+  PRIMARY KEY  (`session_id`),
+  KEY `last_updated` (`last_updated`)
+) ENGINE=MyISAM;
\ No newline at end of file

install/sql/ispconfig3.sql

@@ -1066,6 +1066,21 @@ CREATE TABLE `sys_user` (
 
 -- --------------------------------------------------------
 
+-- 
+-- Table structure for table  `sys_session`
+-- 
+
+CREATE TABLE `sys_session` (
+  `session_id` varchar(32) NOT NULL default '',
+  `date_created` datetime NOT NULL default '0000-00-00 00:00:00',
+  `last_updated` datetime NOT NULL default '0000-00-00 00:00:00',
+  `session_data` longtext,
+  PRIMARY KEY  (`session_id`),
+  KEY `last_updated` (`last_updated`)
+) ENGINE=MyISAM;
+
+-- --------------------------------------------------------
+
 -- 
 -- Table structure for table  `web_domain`
 -- 

interface/lib/app.inc.php

@@ -56,6 +56,15 @@ class app {
 
 		//* Start the session
 		if($this->_conf['start_session'] == true) {
+			
+			$this->uses('session');
+			session_set_save_handler(	array($this->session, 'open'),
+										array($this->session, 'close'),
+										array($this->session, 'read'),
+										array($this->session, 'write'),
+										array($this->session, 'destroy'),
+										array($this->session, 'gc'));
+			
 			session_start();
 
 			//* Initialize session variables

interface/lib/classes/session.inc.php

+<?php
+
+/*
+Copyright (c) 2010, Till Brehm, projektfarm Gmbh
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name of ISPConfig nor the names of its contributors
+      may be used to endorse or promote products derived from this software without
+      specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+class session {
+	
+	private $session_array = array();
+	private $db;
+	
+	function __construct() {
+		$this->db = new db;
+	}
+	
+	function open ($save_path, $session_name) {
+		return true;
+	}
+	
+	function close () {
+		if (!empty($this->fieldarray)) {
+            $result = $this->gc(ini_get('session.gc_maxlifetime'));
+            return $result;
+        }
+        return false;
+    }
+	
+	function read ($session_id) {
+		
+		$rec = $this->db->queryOneRecord("SELECT * FROM sys_session WHERE session_id = '".$this->db->quote($session_id)."'");
+
+        if (is_array($rec)) {
+			$this->session_array = $rec;
+			return $this->session_array['session_data'];
+		} else {
+			return '';
+		}
+	}
+	
+	function write ($session_id, $session_data) {
+		
+		if (!empty($this->session_array) && $this->session_array['session_id'] != $session_id) {
+            $this->session_array = array();
+        }
+
+        if ($this->session_array['session_id'] == '') {
+			$session_id   = $this->db->quote($session_id);
+            $date_created = date('Y-m-d H:i:s');
+            $last_updated = date('Y-m-d H:i:s');
+            $session_data = $this->db->quote($session_data);
+			$sql = "INSERT INTO sys_session (session_id,date_created,last_updated,session_data) VALUES ('$session_id','$date_created','$last_updated','$session_data')";
+			$this->db->query($sql);
+        } else {
+            $session_id   = $this->db->quote($session_id);
+			$last_updated = date('Y-m-d H:i:s');
+            $session_data = $this->db->quote($session_data);
+            $sql = "UPDATE sys_session SET last_updated = '$last_updated', session_data = '$session_data' WHERE session_id = '$session_id'";
+			$this->db->query($sql);
+        }
+		
+        return true;
+    }
+	
+	function destroy ($session_id) {
+		
+		$session_id   = $this->db->quote($session_id);
+		$sql = "DELETE FROM sys_session WHERE session_id = '$session_id'";
+		$this->db->query($sql);
+        
+        return true;
+    }
+	
+	function gc ($max_lifetime) {
+		
+		$real_now = date('Y-m-d H:i:s');
+        $dt1 = strtotime("$real_now -$max_lifetime seconds");
+        $dt2 = date('Y-m-d H:i:s', $dt1);
+		
+		$sql = "DELETE FROM sys_session WHERE last_updated < '$dt2'";
+		$this->db->query($sql);
+        
+        return true;
+        
+    }
+	
+	function __destruct () {
+        @session_write_close();
+
+    }		
+}
+
+?>
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