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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.updater.updateadapter');
/**
* Extension class for updater
*
* @package Joomla.Platform
* @subpackage Updater
* @since 11.1
* */
class JUpdaterExtension extends JUpdateAdapter
{
/**
* Start element parser callback.
*
* @param object $parser The parser object.
* @param string $name The name of the element.
* @param array $attrs The attributes of the element.
*
* @return void
*
* @since 11.1
*/
protected function _startElement($parser, $name, $attrs = array())
{
array_push($this->_stack, $name);
$tag = $this->_getStackLocation();
// Reset the data
if (isset($this->$tag))
{
$this->$tag->_data = "";
}
switch ($name)
{
case 'UPDATE':
$this->current_update = JTable::getInstance('update');
$this->current_update->update_site_id = $this->_update_site_id;
$this->current_update->detailsurl = $this->_url;
$this->current_update->folder = "";
$this->current_update->client_id = 1;
break;
// Don't do anything
case 'UPDATES':
// Store compatibility info per updates block (usually one per file)
$this->compatibility = array();
break;
default:
if (in_array($name, $this->_updatecols))
{
$name = strtolower($name);
$this->current_update->$name = '';
}
if ($name == 'TARGETPLATFORM')
{
$this->current_update->targetplatform = $attrs;
if (isset($attrs['NAME']) && ($attrs['NAME'] == 'joomla') && !empty($attrs['VERSION']))
{
$this->current_update->compatibility = $attrs['VERSION'];
}
}
if ($name == 'PHP_MINIMUM')
{
$this->current_update->php_minimum = '';
}
break;
}
}
/**
* Character Parser Function
*
* @param object $parser Parser object.
* @param object $name The name of the element.
*
* @return void
*
* @since 11.1
*/
protected function _endElement($parser, $name)
{
array_pop($this->_stack);
//echo 'Closing: '. $name .'<br />';
switch ($name)
{
case 'UPDATE':
$ver = new JVersion;
$product = strtolower(JFilterInput::getInstance()->clean($ver->PRODUCT, 'cmd')); // lower case and remove the exclamation mark
// Keep compatibility information in class property
if (isset($this->current_update->compatibility))
{
$this->compatibility[$this->current_update->version][] = $this->current_update->compatibility;
unset($this->current_update->compatibility);
}
// Check that the product matches and that the version matches (optionally a regexp)
if ($product == $this->current_update->targetplatform['NAME']
&& preg_match('/' . $this->current_update->targetplatform['VERSION'] . '/', $ver->RELEASE))
{
// Check if PHP version supported via <php_minimum> tag, assume true if tag isn't present
if (!isset($this->current_update->php_minimum) || version_compare(PHP_VERSION, $this->current_update->php_minimum, '>='))
{
$phpMatch = true;
}
else
{
// Notify the user of the potential update
$msg = JText::sprintf(
'JLIB_INSTALLER_AVAILABLE_UPDATE_PHP_VERSION',
$this->current_update->name,
$this->current_update->version,
$this->current_update->php_minimum,
PHP_VERSION
);
JFactory::getApplication()->enqueueMessage($msg, 'warning');
$phpMatch = false;
}
// Target platform and php_minimum aren't valid fields in the update table so unset them to prevent J! from trying to store them
unset($this->current_update->targetplatform);
unset($this->current_update->php_minimum);
if ($phpMatch)
{
if (isset($this->latest))
{
if (version_compare($this->current_update->version, $this->latest->version, '>') == 1)
{
$this->latest = $this->current_update;
}
}
else
{
$this->latest = $this->current_update;
}
}
}
break;
case 'UPDATES':
// :D
break;
}
}
/**
* Character Parser Function
*
* @param object $parser Parser object.
* @param object $data The data.
*
* @return void
*
* @note This is public because its called externally.
* @since 11.1
*/
protected function _characterData($parser, $data)
{
$tag = $this->_getLastTag();
//if(!isset($this->$tag->_data)) $this->$tag->_data = '';
//$this->$tag->_data .= $data;
if (in_array($tag, $this->_updatecols))
{
$tag = strtolower($tag);
$this->current_update->$tag .= $data;
}
if ($tag == 'PHP_MINIMUM')
{
$this->current_update->php_minimum = $data;
}
}
/**
* Finds an update.
*
* @param array $options Update options.
*
* @return array Array containing the array of update sites and array of updates
*
* @since 11.1
*/
public function findUpdate($options)
{
$url = trim($options['location']);
$this->_url = &$url;
$this->_update_site_id = $options['update_site_id'];
if (substr($url, -4) != '.xml')
{
if (substr($url, -1) != '/')
{
$url .= '/';
}
$url .= 'extension.xml';
}
$dbo = $this->parent->getDBO();
$http = JHttpFactory::getHttp();
try
{
$response = $http->get($url);
}
catch (Exception $exc)
{
$response = null;
}
if (is_null($response) || ($response->code != 200))
{
$query = $dbo->getQuery(true);
$query->update('#__update_sites');
$query->set('enabled = 0');
$query->where('update_site_id = ' . $this->_update_site_id);
$dbo->setQuery($query);
$dbo->execute();
JLog::add("Error opening url: " . $url, JLog::WARNING, 'updater');
$app = JFactory::getApplication();
$app->enqueueMessage(JText::sprintf('JLIB_UPDATER_ERROR_EXTENSION_OPEN_URL', $url), 'warning');
return false;
}
$this->xml_parser = xml_parser_create('');
xml_set_object($this->xml_parser, $this);
xml_set_element_handler($this->xml_parser, '_startElement', '_endElement');
xml_set_character_data_handler($this->xml_parser, '_characterData');
if (!xml_parse($this->xml_parser, $response->body))
{
JLog::add("Error parsing url: " . $url, JLog::WARNING, 'updater');
$app = JFactory::getApplication();
$app->enqueueMessage(JText::sprintf('JLIB_UPDATER_ERROR_EXTENSION_PARSE_URL', $url), 'warning');
return false;
}
xml_parser_free($this->xml_parser);
if (isset($this->latest))
{
if (isset($this->latest->client) && strlen($this->latest->client))
{
$this->latest->client_id = JApplicationHelper::getClientInfo($this->latest->client, 1)->id;
unset($this->latest->client);
}
$updates = array($this->latest);
}
else
{
$updates = array();
}
return array('update_sites' => array(), 'updates' => $updates, 'compatibility' => $this->compatibility);
}
}