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libraries/joomla/updater/adapters/collection.php
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264
libraries/joomla/updater/adapters/collection.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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jimport('joomla.updater.updateadapter');
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/**
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* Collection Update Adapter 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 JUpdaterCollection extends JUpdateAdapter
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{
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/**
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* Root of the tree
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*
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* @var object
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* @since 11.1
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*/
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protected $base;
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/**
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* Tree of objects
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*
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* @var array
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* @since 11.1
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*/
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protected $parent = array(0);
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/**
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* Used to control if an item has a child or not
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*
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* @var boolean
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* @since 11.1
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*/
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protected $pop_parent = 0;
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/**
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* @var array A list of discovered update sites
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*/
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protected $update_sites;
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/**
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* A list of discovered updates
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*
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* @var array
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*/
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protected $updates;
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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('->', $this->stack);
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}
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/**
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* Get the parent tag
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*
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* @return string parent
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*
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* @since 11.1
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*/
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protected function _getParent()
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{
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return end($this->parent);
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}
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/**
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* Opening an XML 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 is opened
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* @param array $attrs Array of attributes for the element
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*
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* @return void
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*
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* @since 11.1
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*/
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public function _startElement($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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case 'CATEGORY':
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if (isset($attrs['REF']))
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{
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$this->update_sites[] = array('type' => 'collection', 'location' => $attrs['REF'], 'update_site_id' => $this->updateSiteId);
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}
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else
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{
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// This item will have children, so prepare to attach them
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$this->pop_parent = 1;
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}
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break;
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case 'EXTENSION':
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$update = JTable::getInstance('update');
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$update->set('update_site_id', $this->updateSiteId);
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foreach ($this->updatecols as $col)
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{
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// Reset the values if it doesn't exist
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if (!array_key_exists($col, $attrs))
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{
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$attrs[$col] = '';
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if ($col == 'CLIENT')
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{
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$attrs[$col] = 'site';
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}
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}
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}
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$client = JApplicationHelper::getClientInfo($attrs['CLIENT'], 1);
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if (isset($client->id))
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{
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$attrs['CLIENT_ID'] = $client->id;
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}
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// Lower case all of the fields
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foreach ($attrs as $key => $attr)
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{
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$values[strtolower($key)] = $attr;
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}
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// Only add the update if it is on the same platform and release as we are
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$ver = new JVersion;
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// Lower case and remove the exclamation mark
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$product = strtolower(JFilterInput::getInstance()->clean($ver->PRODUCT, 'cmd'));
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/*
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* Set defaults, the extension file should clarify in case but it may be only available in one version
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* This allows an update site to specify a targetplatform
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* targetplatformversion can be a regexp, so 1.[56] would be valid for an extension that supports 1.5 and 1.6
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* Note: Whilst the version is a regexp here, the targetplatform is not (new extension per platform)
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* Additionally, the version is a regexp here and it may also be in an extension file if the extension is
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* compatible against multiple versions of the same platform (e.g. a library)
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*/
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if (!isset($values['targetplatform']))
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{
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$values['targetplatform'] = $product;
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}
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// Set this to ourself as a default
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if (!isset($values['targetplatformversion']))
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{
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$values['targetplatformversion'] = $ver->RELEASE;
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}
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// Set this to ourself as a default
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// validate that we can install the extension
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if ($product == $values['targetplatform'] && preg_match('/' . $values['targetplatformversion'] . '/', $ver->RELEASE))
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{
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$update->bind($values);
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$this->updates[] = $update;
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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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* Closing an XML element
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* Note: This is a protected function though has to be exposed externally as a callback
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*
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* @param object $parser Parser object
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* @param string $name Name of the element closing
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*
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* @return void
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*
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* @since 11.1
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*/
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protected function _endElement($parser, $name)
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{
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array_pop($this->stack);
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switch ($name)
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{
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case 'CATEGORY':
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if ($this->pop_parent)
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{
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$this->pop_parent = 0;
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array_pop($this->parent);
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}
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break;
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}
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}
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// Note: we don't care about char data in collection because there should be none
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/**
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* Finds an update
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*
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* @param array $options Options to use: update_site_id: the unique ID of the update site to look at
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*
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* @return array Update_sites and updates discovered
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*
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* @since 11.1
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*/
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public function findUpdate($options)
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{
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$url = $options['location'];
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$this->updateSiteId = $options['update_site_id'];
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if (substr($url, -4) != '.xml')
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{
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if (substr($url, -1) != '/')
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{
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$url .= '/';
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}
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$url .= 'update.xml';
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}
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$this->base = new stdClass;
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$this->update_sites = array();
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$this->updates = array();
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$db = $this->parent->getDBO();
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$http = JHttpFactory::getHttp();
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$response = $http->get($url);
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if (200 != $response->code)
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{
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$query = $db->getQuery(true)
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->update('#__update_sites')
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->set('enabled = 0')
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->where('update_site_id = ' . $this->updateSiteId);
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$db->setQuery($query);
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$db->execute();
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JLog::add("Error parsing url: " . $url, JLog::WARNING, 'updater');
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$app = JFactory::getApplication();
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$app->enqueueMessage(JText::sprintf('JLIB_UPDATER_ERROR_COLLECTION_OPEN_URL', $url), 'warning');
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return false;
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}
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$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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if (!xml_parse($this->xmlParser, $response->body))
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{
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JLog::add("Error parsing url: " . $url, JLog::WARNING, 'updater');
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$app = JFactory::getApplication();
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$app->enqueueMessage(JText::sprintf('JLIB_UPDATER_ERROR_COLLECTION_PARSE_URL', $url), 'warning');
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return false;
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}
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// TODO: Decrement the bad counter if non-zero
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return array('update_sites' => $this->update_sites, 'updates' => $this->updates);
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}
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}
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