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// ------------------------------------------------------------------------ //
// XOOPS - PHP Content Management System //
// Copyright (c) 2000 XOOPS.org //
// <http://www.xoops.org/> //
// ------------------------------------------------------------------------ //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation; either version 2 of the License, or //
// (at your option) any later version. //
// //
// You may not change or alter any portion of this comment or credits //
// of supporting developers from this source code or any supporting //
// source code which is considered copyrighted (c) material of the //
// original comment or credit authors. //
// //
// 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 General Public License for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program; if not, write to the Free Software //
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA //
// ------------------------------------------------------------------------ //
// Author: Kazumi Ono (AKA onokazu) //
// URL: http://www.myweb.ne.jp/, http://www.xoops.org/, http://jp.xoops.org/ //
// Project: The XOOPS Project //
// ------------------------------------------------------------------------- //
/**
* Manage of online users
*
* @copyright http://www.impresscms.org/ The ImpressCMS Project
* @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU General Public License (GPL)
* @category ICMS
* @package Core
* @version SVN: $Id: OnlineHandler.php 12313 2013-09-15 21:14:35Z skenow $
*/
/**
* A handler for "Who is Online?" information
*
* @category ICMS
* @package Core
*
* @since XOOPS
* @author Kazumi Ono <onokazu@xoops.org>
* @copyright copyright (c) 2000-2003 XOOPS.org
*/
class icms_core_OnlineHandler {
/**
* Database connection
*
* @var object
*/
private $db;
/**
* Constructor
*
* @param object &$db {@link XoopsHandlerFactory}
*/
public function __construct(&$db) {
$this->db =& $db;
}
/**
* Inserts online information into the database
*
* @param int $uid UID of the active user
* @param string $uname Username
* @param string $timestamp
* @param string $module Current module
* @param string $ip User's IP adress
*
* @return bool TRUE on success
*/
public function write($uid, $uname, $time, $module, $ip) {
$uid = (int) $uid;
if ($uid > 0) {
$sql = "SELECT COUNT(*) FROM " . $this->db->prefix('online')
. " WHERE online_uid='" . $uid . "'";
} else {
$sql = "SELECT COUNT(*) FROM " . $this->db->prefix('online')
. " WHERE online_uid='" . $uid . "' AND online_ip='" . $ip . "'";
}
list($count) = $this->db->fetchRow($this->db->queryF($sql));
if ($count > 0) {
$sql = "UPDATE " . $this->db->prefix('online')
. " SET online_updated='" . $time . "', online_module = '" . $module
. "' WHERE online_uid = '" . $uid . "'";
if ($uid == 0) {
$sql .= " AND online_ip='" . $ip . "'";
}
} else {
$sql = sprintf(
"INSERT INTO %s (online_uid, online_uname, online_updated, online_ip, online_module)"
. " VALUES ('%u', %s, '%u', %s, '%u')",
$this->db->prefix('online'),
$uid,
$this->db->quoteString($uname),
(int) $time,
$this->db->quoteString($ip),
(int) $module
);
}
if (!$this->db->queryF($sql)) {
return false;
}
return true;
}
/**
* Delete online information for a user
*
* @param int $uid UID
*
* @return bool TRUE on success
*/
public function destroy($uid) {
$sql = sprintf("DELETE FROM %s WHERE online_uid = '%u'", $this->db->prefix('online'), (int) ($uid));
if (!$result = $this->db->queryF($sql)) {
return false;
}
return true;
}
/**
* Garbage Collection
*
* Delete all online information that has not been updated for a certain time
*
* @param int $expire Expiration time in seconds
*/
public function gc($expire) {
$sql = sprintf("DELETE FROM %s WHERE online_updated < '%u'", $this->db->prefix('online'), time() - (int) ($expire));
$this->db->queryF($sql);
}
/**
* Get an array of online information
*
* @param object $criteria {@link icms_db_criteria_Element}
* @return array Array of associative arrays of online information
*/
public function getAll($criteria = null) {
$ret = array();
$limit = $start = 0;
$sql = 'SELECT * FROM ' . $this->db->prefix('online');
if (is_object($criteria) && is_subclass_of($criteria, 'icms_db_criteria_Element')) {
$sql .= ' ' . $criteria->renderWhere();
$limit = $criteria->getLimit();
$start = $criteria->getStart();
}
$result = $this->db->query($sql, $limit, $start);
if (!$result) {
return false;
}
while ($myrow = $this->db->fetchArray($result)) {
$ret[] = $myrow;
unset($myrow);
}
return $ret;
}
/**
* Count the number of online users
*
* @param object $criteria {@link icms_db_criteria_Element}
*/
public function getCount($criteria = null) {
$sql = 'SELECT COUNT(*) FROM ' . $this->db->prefix('online');
if (is_object($criteria) && is_subclass_of($criteria, 'icms_db_criteria_Element')) {
$sql .= ' ' . $criteria->renderWhere();
}
if (!$result = $this->db->query($sql)) {
return false;
}
list($ret) = $this->db->fetchRow($result);
return $ret;
}
}