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<?php
/**
* @package Joomla.Platform
* @subpackage Updater
*
* @copyright Copyright (C) 2005 - 2014 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
jimport('joomla.filesystem.file');
jimport('joomla.filesystem.folder');
jimport('joomla.filesystem.archive');
jimport('joomla.filesystem.path');
jimport('joomla.base.adapter');
jimport('joomla.utilities.arrayhelper');
/**
* Updater Class
*
* @package Joomla.Platform
* @subpackage Updater
* @since 11.1
*/
class JUpdater extends JAdapter
{
/**
* @var JUpdater JUpdater instance container.
* @since 11.3
*/
protected static $instance;
/**
* Constructor
*
* @since 11.1
*/
public function __construct()
{
// Adapter base path, class prefix
parent::__construct(dirname(__FILE__), 'JUpdater');
}
/**
* Returns a reference to the global Installer object, only creating it
* if it doesn't already exist.
*
* @return object An installer object
*
* @since 11.1
*/
public static function &getInstance()
{
if (!isset(self::$instance))
{
self::$instance = new JUpdater;
}
return self::$instance;
}
/**
* Finds an update for an extension
*
* @param integer $eid Extension Identifier; if zero use all sites
* @param integer $cacheTimeout How many seconds to cache update information; if zero, force reload the update information
*
* @return boolean True if there are updates
*
* @since 11.1
*/
public function findUpdates($eid = 0, $cacheTimeout = 0)
{
$dbo = $this->getDBO();
$retval = false;
// Push it into an array
if (!is_array($eid))
{
$query = 'SELECT DISTINCT update_site_id, type, location, last_check_timestamp FROM #__update_sites WHERE enabled = 1';
}
else
{
$query = 'SELECT DISTINCT update_site_id, type, location, last_check_timestamp FROM #__update_sites' .
' WHERE update_site_id IN' .
' (SELECT update_site_id FROM #__update_sites_extensions WHERE extension_id IN (' . implode(',', $eid) . '))';
}
$dbo->setQuery($query);
$results = $dbo->loadAssocList();
$result_count = count($results);
$now = time();
for ($i = 0; $i < $result_count; $i++)
{
$result = &$results[$i];
$this->setAdapter($result['type']);
if (!isset($this->_adapters[$result['type']]))
{
// Ignore update sites requiring adapters we don't have installed
continue;
}
if ($cacheTimeout > 0)
{
if (isset($result['last_check_timestamp']) && ($now - $result['last_check_timestamp'] <= $cacheTimeout))
{
// Ignore update sites whose information we have fetched within
// the cache time limit
$retval = true;
continue;
}
}
$update_result = $this->_adapters[$result['type']]->findUpdate($result);
if (is_array($update_result))
{
if (array_key_exists('update_sites', $update_result) && count($update_result['update_sites']))
{
$results = JArrayHelper::arrayUnique(array_merge($results, $update_result['update_sites']));
$result_count = count($results);
}
if (array_key_exists('updates', $update_result) && count($update_result['updates']))
{
for ($k = 0, $count = count($update_result['updates']); $k < $count; $k++)
{
$current_update = &$update_result['updates'][$k];
$update = JTable::getInstance('update');
$extension = JTable::getInstance('extension');
$uid = $update
->find(
array(
'element' => strtolower($current_update->get('element')), 'type' => strtolower($current_update->get('type')),
'client_id' => strtolower($current_update->get('client_id')),
'folder' => strtolower($current_update->get('folder'))
)
);
$eid = $extension
->find(
array(
'element' => strtolower($current_update->get('element')), 'type' => strtolower($current_update->get('type')),
'client_id' => strtolower($current_update->get('client_id')),
'folder' => strtolower($current_update->get('folder'))
)
);
if (!$uid)
{
// Set the extension id
if ($eid)
{
// We have an installed extension, check the update is actually newer
$extension->load($eid);
$data = json_decode($extension->manifest_cache, true);
if (version_compare($current_update->version, $data['version'], '>') == 1)
{
$current_update->extension_id = $eid;
$current_update->store();
}
// Store compatibility information into the extension table
if (!empty($update_result['compatibility']))
{
$system_data = json_decode($extension->system_data);
$system_data->compatibility = new stdClass();
$compatibility = $update_result['compatibility'];
ksort($compatibility);
// Check data for current installed version
if (!empty($compatibility[$data['version']]))
{
$system_data->compatibility->installed = new stdClass();
$system_data->compatibility->installed->value = $compatibility[$data['version']];
$system_data->compatibility->installed->version = $data['version'];
}
// Get last item in array which is highest release
$system_data->compatibility->available = new stdClass();
$system_data->compatibility->available->value = end($compatibility);
$system_data->compatibility->available->version = key($compatibility);
$extension->system_data = json_encode($system_data);
$extension->store();
}
}
else
{
// A potentially new extension to be installed
$current_update->store();
}
}
else
{
$update->load($uid);
// if there is an update, check that the version is newer then replaces
if (version_compare($current_update->version, $update->version, '>') == 1)
{
$current_update->store();
}
}
}
}
$update_result = true;
}
elseif ($retval)
{
$update_result = true;
}
// Finally, update the last update check timestamp
$query = $dbo->getQuery(true);
$query->update($dbo->quoteName('#__update_sites'));
$query->set($dbo->quoteName('last_check_timestamp') . ' = ' . $dbo->quote($now));
$query->where($dbo->quoteName('update_site_id') . ' = ' . $dbo->quote($result['update_site_id']));
$dbo->setQuery($query);
$dbo->execute();
}
return $retval;
}
/**
* Multidimensional array safe unique test
*
* @param array $myArray The source array.
*
* @return array
*
* @deprecated 12.1
* @note Use JArrayHelper::arrayUnique() instead.
* @note Borrowed from PHP.net
* @see http://au2.php.net/manual/en/function.array-unique.php
* @since 11.1
*
*/
public function arrayUnique($myArray)
{
JLog::add('JUpdater::arrayUnique() is deprecated. See JArrayHelper::arrayUnique() . ', JLog::WARNING, 'deprecated');
return JArrayHelper::arrayUnique($myArray);
}
/**
* Finds an update for an extension
*
* @param integer $id Id of the extension
*
* @return mixed
*
* @since 11.1
*/
public function update($id)
{
$updaterow = JTable::getInstance('update');
$updaterow->load($id);
$update = new JUpdate;
if ($update->loadFromXML($updaterow->detailsurl))
{
return $update->install();
}
return false;
}
}