mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-12-27 09:09:04 +01:00
246 lines
6.3 KiB
PHP
246 lines
6.3 KiB
PHP
<?php
|
|
/**
|
|
* eGroupWare - eTemplate request object
|
|
*
|
|
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
|
|
* @package etemplate
|
|
* @link http://www.egroupware.org
|
|
* @author Ralf Becker <RalfBecker@outdoor-training.de>
|
|
* @copyright (c) 2007 by Ralf Becker <RalfBecker@outdoor-training.de>
|
|
* @version $Id$
|
|
*/
|
|
|
|
/**
|
|
* Class to represent the persitent information stored on the server for each eTemplate request
|
|
*
|
|
* The information is stored in the users session
|
|
*
|
|
* There are two ways to instanciate a request object:
|
|
*
|
|
* a) a new request:
|
|
*
|
|
* $request = new etemplate_request(); $id = $request->id();
|
|
*
|
|
* b) open or modify an existing request:
|
|
*
|
|
* if (!($request = etemplate_request::read($id)))
|
|
* {
|
|
* // request not found
|
|
* }
|
|
*
|
|
* Ajax request can use this object to open the original request by using the id, they have to transmitt back,
|
|
* and register further variables, modify the registered ones or delete them.
|
|
*/
|
|
class etemplate_request
|
|
{
|
|
/**
|
|
* here is the request data stored
|
|
*
|
|
* @var array
|
|
*/
|
|
private $data=array();
|
|
/**
|
|
* Flag if data has been modified and therefor need to be stored again in the session
|
|
*
|
|
* @var boolean
|
|
*/
|
|
private $data_modified=false;
|
|
/**
|
|
* request id
|
|
*
|
|
* @var string
|
|
*/
|
|
private $id;
|
|
|
|
/**
|
|
* Enter description here...
|
|
*
|
|
* @param array $id_data
|
|
* @return etemplate_request
|
|
*/
|
|
function __construct($id=null)
|
|
{
|
|
if (!$id) $id = $this->request_id();
|
|
|
|
$this->id = $id;
|
|
}
|
|
|
|
/**
|
|
* return the id of this request
|
|
*
|
|
* @return string
|
|
*/
|
|
function id()
|
|
{
|
|
return $this->id;
|
|
}
|
|
|
|
/**
|
|
* Read the request via it's id, returns a request_object or false
|
|
*
|
|
* @param string $id
|
|
* @return etempalte_request/boolean the object or false if $id is not found
|
|
*/
|
|
static function read($id)
|
|
{
|
|
if (!($data = $GLOBALS['egw']->session->appsession($id,'etemplate')))
|
|
{
|
|
return false; // request not found
|
|
}
|
|
$request = new etemplate_request($id);
|
|
$request->data = $data;
|
|
|
|
return $request;
|
|
}
|
|
|
|
/**
|
|
* Register a form-variable to be processed
|
|
*
|
|
* @param string $form_name form-name
|
|
* @param string $type etemplate type
|
|
* @param array $data=array() optional extra data
|
|
*/
|
|
public function set_to_process($form_name,$type,$data=array())
|
|
{
|
|
if (!$form_name || !$type) return;
|
|
|
|
$data['type'] = $type;
|
|
|
|
$this->data['to_process'][$form_name] = $data;
|
|
$this->data_modified = true;
|
|
}
|
|
|
|
/**
|
|
* Unregister a form-variable to be no longer processed
|
|
*
|
|
* @param string $form_name form-name
|
|
*/
|
|
public function unset_to_process($form_name)
|
|
{
|
|
unset($this->data['to_process'][$form_name]);
|
|
$this->data_modified = true;
|
|
}
|
|
|
|
/**
|
|
* return the data of a form-var to process or the whole array
|
|
*
|
|
* @param string $form_name=null
|
|
* @return array
|
|
*/
|
|
public function get_to_process($form_name=null)
|
|
{
|
|
return $form_name ? $this->data['to_process'][$form_name] : $this->data['to_process'];
|
|
}
|
|
|
|
/**
|
|
* check if something set for a given $form_name
|
|
*
|
|
* @param string $form_name
|
|
* @return boolean
|
|
*/
|
|
public function isset_to_process($form_name)
|
|
{
|
|
return isset($this->data['to_process'][$form_name]);
|
|
}
|
|
|
|
/**
|
|
* magic function to set all request-vars, used eg. as $request->method = 'app.class.method';
|
|
*
|
|
* @param string $var
|
|
* @param mixed $val
|
|
*/
|
|
function __set($var,$val)
|
|
{
|
|
if ($this->data[$var] !== $val)
|
|
{
|
|
$this->data[$var] = $val;
|
|
$this->data_modified = true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* magic function to access the request-vars, used eg. as $method = $request->method;
|
|
*
|
|
* @param string $var
|
|
* @return mixed
|
|
*/
|
|
function __get($var)
|
|
{
|
|
return $this->data[$var];
|
|
}
|
|
|
|
/**
|
|
* creates a new request-id via microtime()
|
|
*
|
|
* @return string
|
|
*/
|
|
function _request_id()
|
|
{
|
|
list($msec,$sec) = explode(' ',microtime());
|
|
$time = 100 * $sec + (int)(100 * $msec); // gives precision of 1/100 sec
|
|
$id = $GLOBALS['egw_info']['flags']['currentapp'] .':'. $time;
|
|
|
|
return $id;
|
|
}
|
|
|
|
/**
|
|
* saves content,readonlys,template-keys, ... via eGW's appsession function
|
|
*
|
|
* As a user may open several windows with the same content/template wie generate a location-id from microtime
|
|
* which is used as location for request to descriminate between the different windows. This location-id
|
|
* is then saved as a hidden-var in the form. The above mentions session-id has nothing to do / is different
|
|
* from the session-id which is constant for all windows opened in one session.
|
|
*/
|
|
function __destruct()
|
|
{
|
|
if ($this->data_modified) $GLOBALS['egw']->session->appsession($this->id,'etemplate',$this->data);
|
|
|
|
if (substr($GLOBALS['egw_info']['server']['sessions_type'],0,4) == 'php4' && !$this->garbage_collection_done)
|
|
{
|
|
$this->_php4_request_garbage_collection();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* a little bit of garbage collection for php4 sessions (their size is limited by memory_limit)
|
|
*
|
|
* With constant eTemplate use it can grow quite big and lead to unusable sessions (php terminates
|
|
* before any output with "Allowed memory size of ... exhausted").
|
|
* We delete now sessions once used after 10min and sessions never or multiple used after 60min.
|
|
*/
|
|
private function _php4_request_garbage_collection()
|
|
{
|
|
// now we are on php4 sessions and do a bit of garbage collection
|
|
$appsessions =& $_SESSION[EGW_SESSION_VAR]['appsessions']['etemplate'];
|
|
$session_used =& $appsessions['session_used'];
|
|
|
|
if ($this->id)
|
|
{
|
|
//echo "session_used[$id_used]='".$session_used[$id_used]."'<br/>\n";
|
|
++$session_used[$this->id]; // count the number of times a session got used
|
|
}
|
|
$this->garbage_collection_done = true;
|
|
|
|
if (count($appsessions) < 20) return; // we dont need to care
|
|
|
|
list($msec,$sec) = explode(' ',microtime());
|
|
$now = 100 * $sec + (int)(100 * $msec); // gives precision of 1/100 sec
|
|
|
|
foreach(array_keys($appsessions) as $id)
|
|
{
|
|
list(,$time) = explode(':',$id);
|
|
|
|
if (!$time) continue; // other data, no session
|
|
|
|
//echo ++$n.') '.$id.': '.(($now-$time)/100.0)."secs old, used=".$session_used[$id].", size=".strlen($appsessions[$id])."<br>\n";
|
|
|
|
if ($session_used[$id] == 1 && $time < $now - 10*6000 || // session used and older then 10min
|
|
$time < $now - 60*6000) // session not used and older then 1h
|
|
{
|
|
//echo "<p>boetemplate::php4_session_garbage_collection('$id_used'): unsetting session '$id' (now=$now)</p>\n";
|
|
unset($appsessions[$id]);
|
|
unset($session_used[$id]);
|
|
}
|
|
}
|
|
}
|
|
} |