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libraries/joomla/updater/update.php
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342
libraries/joomla/updater/update.php
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<?php
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/**
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* @package Joomla.Platform
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* @subpackage Updater
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*
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* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE
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*/
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defined('JPATH_PLATFORM') or die;
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/**
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* Update class.
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*
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* @package Joomla.Platform
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* @subpackage Updater
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* @since 11.1
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*/
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class JUpdate extends JObject
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{
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/**
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* @var string
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* @since 11.1
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*/
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protected $name;
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/**
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* @var string
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* @since 11.1
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*/
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protected $description;
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/**
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* @var string
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* @since 11.1
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*/
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protected $element;
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/**
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* @var string
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* @since 11.1
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*/
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protected $type;
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/**
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* @var string
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* @since 11.1
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*/
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protected $version;
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/**
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* @var string
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* @since 11.1
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*/
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protected $infourl;
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/**
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* @var string
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* @since 11.1
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*/
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protected $client;
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/**
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* @var string
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* @since 11.1
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*/
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protected $group;
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/**
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* @var string
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* @since 11.1
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*/
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protected $downloads;
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/**
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* @var string
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* @since 11.1
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*/
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protected $tags;
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/**
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* @var string
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* @since 11.1
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*/
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protected $maintainer;
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/**
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* @var string
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* @since 11.1
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*/
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protected $maintainerurl;
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/**
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* @var string
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* @since 11.1
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*/
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protected $category;
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/**
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* @var string
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* @since 11.1
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*/
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protected $relationships;
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/**
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* @var string
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* @since 11.1
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*/
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protected $targetplatform;
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/**
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* @var string
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* @since 12.1
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*/
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protected $xmlParser;
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/**
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* @var array
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* @since 12.1
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*/
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protected $stack = array('base');
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/**
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* @var array
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* @since 12.1
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*/
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protected $stateStore = array();
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/**
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* @var stdClass
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* @since 12.1
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*/
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protected $currentUpdate;
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/**
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* @var stdClass
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* @since 12.1
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*/
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protected $latest;
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/**
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* Gets the reference to the current direct parent
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*
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* @return object
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*
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* @since 11.1
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*/
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protected function _getStackLocation()
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{
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return implode('->', $this->stack);
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}
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/**
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* Get the last position in stack count
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*
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* @return string
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*
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* @since 11.1
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*/
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protected function _getLastTag()
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{
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return $this->stack[count($this->stack) - 1];
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}
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/**
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* XML Start Element callback
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*
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* @param object $parser Parser object
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* @param string $name Name of the tag found
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* @param array $attrs Attributes of the tag
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*
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* @return void
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*
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* @note This is public because it is called externally
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* @since 11.1
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*/
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public function _startElement($parser, $name, $attrs = array())
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{
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array_push($this->stack, $name);
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$tag = $this->_getStackLocation();
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// Reset the data
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if (isset($this->$tag))
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{
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$this->$tag->_data = "";
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}
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switch ($name)
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{
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// This is a new update; create a current update
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case 'UPDATE':
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$this->currentUpdate = new stdClass;
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break;
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// Don't do anything
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case 'UPDATES':
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break;
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// For everything else there's...the default!
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default:
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$name = strtolower($name);
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if (!isset($this->currentUpdate->$name))
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{
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$this->currentUpdate->$name = new stdClass;
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}
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$this->currentUpdate->$name->_data = '';
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foreach ($attrs as $key => $data)
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{
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$key = strtolower($key);
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$this->currentUpdate->$name->$key = $data;
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}
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break;
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}
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}
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/**
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* Callback for closing the element
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*
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* @param object $parser Parser object
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* @param string $name Name of element that was closed
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*
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* @return void
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*
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* @note This is public because it is called externally
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* @since 11.1
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*/
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public function _endElement($parser, $name)
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{
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array_pop($this->stack);
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switch ($name)
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{
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// Closing update, find the latest version and check
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case 'UPDATE':
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$ver = new JVersion;
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$product = strtolower(JFilterInput::getInstance()->clean($ver->PRODUCT, 'cmd'));
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// Check for optional min_dev_level and max_dev_level attributes to further specify targetplatform (e.g., 3.0.1)
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if (isset($this->currentUpdate->targetplatform->name)
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&& $product == $this->currentUpdate->targetplatform->name
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&& preg_match('/' . $this->currentUpdate->targetplatform->version . '/', $ver->RELEASE)
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&& ((!isset($this->currentUpdate->targetplatform->min_dev_level)) || $ver->DEV_LEVEL >= $this->currentUpdate->targetplatform->min_dev_level)
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&& ((!isset($this->currentUpdate->targetplatform->max_dev_level)) || $ver->DEV_LEVEL <= $this->currentUpdate->targetplatform->max_dev_level))
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{
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if (isset($this->latest))
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{
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if (version_compare($this->currentUpdate->version->_data, $this->latest->version->_data, '>') == 1)
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{
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$this->latest = $this->currentUpdate;
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}
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}
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else
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{
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$this->latest = $this->currentUpdate;
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}
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}
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break;
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case 'UPDATES':
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// If the latest item is set then we transfer it to where we want to
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if (isset($this->latest))
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{
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foreach (get_object_vars($this->latest) as $key => $val)
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{
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$this->$key = $val;
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}
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unset($this->latest);
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unset($this->currentUpdate);
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}
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elseif (isset($this->currentUpdate))
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{
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// The update might be for an older version of j!
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unset($this->currentUpdate);
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}
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break;
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}
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}
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/**
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* Character Parser Function
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*
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* @param object $parser Parser object.
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* @param object $data The data.
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*
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* @return void
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*
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* @note This is public because its called externally.
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* @since 11.1
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*/
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public function _characterData($parser, $data)
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{
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$tag = $this->_getLastTag();
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// @todo remove code: if(!isset($this->$tag->_data)) $this->$tag->_data = '';
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// @todo remove code: $this->$tag->_data .= $data;
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// Throw the data for this item together
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$tag = strtolower($tag);
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if (isset($this->currentUpdate->$tag))
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{
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$this->currentUpdate->$tag->_data .= $data;
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}
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}
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/**
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* Loads an XML file from a URL.
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*
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* @param string $url The URL.
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*
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* @return boolean True on success
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*
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* @since 11.1
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*/
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public function loadFromXML($url)
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{
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$http = JHttpFactory::getHttp();
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$response = $http->get($url);
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if (200 != $response->code)
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{
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// TODO: Add a 'mark bad' setting here somehow
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JLog::add(JText::sprintf('JLIB_UPDATER_ERROR_EXTENSION_OPEN_URL', $url), JLog::WARNING, 'jerror');
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return false;
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}
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$this->xmlParser = xml_parser_create('');
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xml_set_object($this->xmlParser, $this);
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xml_set_element_handler($this->xmlParser, '_startElement', '_endElement');
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xml_set_character_data_handler($this->xmlParser, '_characterData');
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if (!xml_parse($this->xmlParser, $response->body))
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{
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die(
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sprintf(
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"XML error: %s at line %d", xml_error_string(xml_get_error_code($this->xmlParser)),
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xml_get_current_line_number($this->xmlParser)
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)
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);
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}
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xml_parser_free($this->xmlParser);
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return true;
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}
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}
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