mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-12-29 01:59:39 +01:00
111 lines
3.1 KiB
PHP
111 lines
3.1 KiB
PHP
<?php
|
|
/**
|
|
* eGroupWare API - memcache session handler
|
|
*
|
|
* Fixes a problem of the buildin session handler of the memcache pecl extension,
|
|
* which can NOT work with sessions > 1MB. This handler splits the session-data
|
|
* in 1MB junk, so memcache can handle them.
|
|
*
|
|
* To enable it, you need to set session.save_handler to 'memcache' and
|
|
* session.save_path to 'tcp://host:port[,tcp://host2:port,...]',
|
|
* as you have to do it with the original handler.
|
|
*
|
|
* @link http://www.egroupware.org
|
|
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
|
|
* @package api
|
|
* @subpackage session
|
|
* @copyright (c) 2007 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
|
|
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
|
|
* @version $Id$
|
|
*/
|
|
|
|
function egw_memcache_open($save_path, $session_name)
|
|
{
|
|
global $egw_memcache_obj;
|
|
$egw_memcache_obj = new Memcache;
|
|
foreach(explode(',',ini_get('session.save_path')) as $path)
|
|
{
|
|
$parts = parse_url($path);
|
|
$egw_memcache_obj->addServer($parts['host'],$parts['port']); // todo parse query
|
|
}
|
|
return(true);
|
|
}
|
|
|
|
function egw_memcache_close()
|
|
{
|
|
global $egw_memcache_obj;
|
|
|
|
return is_object($egw_memcache_obj) ? $egw_memcache_obj->close() : false;
|
|
}
|
|
|
|
define('MEMCACHED_MAX_JUNK',1024*1023); // 1024*1024 is too big, maybe some account-info needs to be added
|
|
|
|
function egw_memcache_read($id)
|
|
{
|
|
global $egw_memcache_obj;
|
|
|
|
$id = 'sess-'.$_REQUEST['domain'].'-'.$id;
|
|
for($data=false,$n=0; ($read = $egw_memcache_obj->get($id.'-'.$n)); ++$n)
|
|
{
|
|
$data .= $read;
|
|
}
|
|
return $data;
|
|
}
|
|
|
|
function egw_memcache_write($id, $sess_data)
|
|
{
|
|
global $egw_memcache_obj;
|
|
|
|
$lifetime = (int)ini_get('session.gc_maxlifetime');
|
|
// give anon sessions only a lifetime of 10min
|
|
if (is_object($GLOBALS['egw']->session) && $GLOBALS['egw']->session->session_flags == 'A')
|
|
{
|
|
$lifetime = 600;
|
|
}
|
|
$id = 'sess-'.$GLOBALS['egw_info']['user']['domain'].'-'.$id;
|
|
for($n=$i=0,$len=_bytes($sess_data); $i < $len; $i += MEMCACHED_MAX_JUNK,++$n)
|
|
{
|
|
if (!$egw_memcache_obj->set($id.'-'.$n,_cut_bytes($sess_data,$i,MEMCACHED_MAX_JUNK),0,$lifetime)) return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
function _test_mbstring_func_overload()
|
|
{
|
|
return @extension_loaded('mbstring') && (ini_get('mbstring.func_overload') & 2);
|
|
}
|
|
|
|
function _bytes(&$data)
|
|
{
|
|
global $mbstring_func_overload;
|
|
|
|
if (is_null($mbstring_func_overload)) _test_mbstring_func_overload();
|
|
|
|
return $mbstring_func_overload ? mb_strlen($data,'ascii') : strlen($data);
|
|
}
|
|
|
|
function _cut_bytes(&$data,$offset,$len=null)
|
|
{
|
|
global $mbstring_func_overload;
|
|
|
|
if (is_null($mbstring_func_overload)) _test_mbstring_func_overload();
|
|
|
|
return $mbstring_func_overload ? mb_substr($data,$offset,$len,'ascii') : substr($data,$offset,$len,'ascii');
|
|
}
|
|
|
|
function egw_memcache_destroy($id)
|
|
{
|
|
global $egw_memcache_obj;
|
|
|
|
$id = 'sess-'.$_REQUEST['domain'].'-'.$id;
|
|
for($n=0; $egw_memcache_obj->delete($id.'-'.$n); ++$n) ;
|
|
|
|
return $n > 0;
|
|
}
|
|
|
|
function egw_memcache_gc($maxlifetime)
|
|
{
|
|
}
|
|
|
|
session_set_save_handler("egw_memcache_open", "egw_memcache_close", "egw_memcache_read", "egw_memcache_write", "egw_memcache_destroy", "egw_memcache_gc");
|