public function update($uids)
 {
     $result = true;
     foreach ($uids as $uid) {
         $update = new JUpdate();
         $instance = JTable::getInstance('update');
         $instance->load($uid);
         $update->loadFromXML($instance->detailsurl);
         $update->set('extra_query', $instance->extra_query);
         // Install sets state and enqueues messages
         $res = $this->install($update);
         if ($res) {
             $instance->delete($uid);
         }
         $result = $res & $result;
     }
     // Set the final state
     $this->setState('result', $result);
 }

 private function getInstallFrom()
 {
     if (is_null($this->_installfrom)) {
         $app = JFactory::getApplication();
         $installfrom = base64_decode($app->input->get('installfrom', '', 'base64'));
         $field = new SimpleXMLElement('<field></field>');
         $rule = new JFormRuleUrl();
         if ($rule->test($field, $installfrom) && preg_match('/\\.xml\\s*$/', $installfrom)) {
             jimport('joomla.updater.update');
             $update = new JUpdate();
             $update->loadFromXML($installfrom);
             $package_url = trim($update->get('downloadurl', false)->_data);
             if ($package_url) {
                 $installfrom = $package_url;
             }
         }
         $this->_installfrom = $installfrom;
     }
     return $this->_installfrom;
 }

 public function update($id)
 {
     $updaterow =& JTable::getInstance('update');
     $updaterow->load($id);
     $update = new JUpdate();
     if ($update->loadFromXML($updaterow->detailsurl)) {
         return $update->install();
     }
     return false;
 }

 /**
  * Handles the actual update installation.
  *
  * @param   JUpdate  $update  An update definition
  *
  * @return  boolean   Result of install
  *
  * @since   1.6
  */
 private function install($update)
 {
     $app = JFactory::getApplication();
     if (isset($update->get('downloadurl')->_data)) {
         $url = $update->downloadurl->_data;
         $extra_query = $update->get('extra_query');
         if ($extra_query) {
             if (strpos($url, '?') === false) {
                 $url .= '?';
             } else {
                 $url .= '&';
             }
             $url .= $extra_query;
         }
     } else {
         JError::raiseWarning('', JText::_('COM_INSTALLER_INVALID_EXTENSION_UPDATE'));
         return false;
     }
     $p_file = JInstallerHelper::downloadPackage($url);
     // Was the package downloaded?
     if (!$p_file) {
         JError::raiseWarning('', JText::sprintf('COM_INSTALLER_PACKAGE_DOWNLOAD_FAILED', $url));
         return false;
     }
     $config = JFactory::getConfig();
     $tmp_dest = $config->get('tmp_path');
     // Unpack the downloaded package file
     $package = JInstallerHelper::unpack($tmp_dest . '/' . $p_file);
     // Get an installer instance
     $installer = JInstaller::getInstance();
     $update->set('type', $package['type']);
     // Install the package
     if (!$installer->update($package['dir'])) {
         // There was an error updating the package
         $msg = JText::sprintf('COM_INSTALLER_MSG_UPDATE_ERROR', JText::_('COM_INSTALLER_TYPE_TYPE_' . strtoupper($package['type'])));
         $result = false;
     } else {
         // Package updated successfully
         $msg = JText::sprintf('COM_INSTALLER_MSG_UPDATE_SUCCESS', JText::_('COM_INSTALLER_TYPE_TYPE_' . strtoupper($package['type'])));
         $result = true;
     }
     // Quick change
     $this->type = $package['type'];
     // Set some model state values
     $app->enqueueMessage($msg);
     // TODO: Reconfigure this code when you have more battery life left
     $this->setState('name', $installer->get('name'));
     $this->setState('result', $result);
     $app->setUserState('com_installer.message', $installer->message);
     $app->setUserState('com_installer.extension_message', $installer->get('extension_message'));
     // Cleanup the install files
     if (!is_file($package['packagefile'])) {
         $config = JFactory::getConfig();
         $package['packagefile'] = $config->get('tmp_path') . '/' . $package['packagefile'];
     }
     JInstallerHelper::cleanupInstall($package['packagefile'], $package['extractdir']);
     return $result;
 }

 /**
  * Returns an array with the Joomla! update information.
  *
  * @return  array
  *
  * @since   2.5.4
  */
 public function getUpdateInformation()
 {
     // Initialise the return array.
     $ret = array('installed' => JVERSION, 'latest' => null, 'object' => null, 'hasUpdate' => false);
     // Fetch the update information from the database.
     $db = $this->getDbo();
     $query = $db->getQuery(true)->select('*')->from($db->quoteName('#__updates'))->where($db->quoteName('extension_id') . ' = ' . $db->quote(700));
     $db->setQuery($query);
     $updateObject = $db->loadObject();
     if (is_null($updateObject)) {
         $ret['latest'] = JVERSION;
         return $ret;
     }
     $ret['latest'] = $updateObject->version;
     $ret['hasUpdate'] = $updateObject->version != JVERSION;
     // Fetch the full update details from the update details URL.
     jimport('joomla.updater.update');
     $update = new JUpdate();
     $update->loadFromXML($updateObject->detailsurl);
     $ret['object'] = $update;
     return $ret;
 }

 /**
  * Find the available update record object. If we're at the latest version it will return null.
  *
  * @param   bool  $force  Should I forcibly reload the updates from the server?
  *
  * @return  \stdClass|null
  */
 protected function findUpdatesJoomla($force = false)
 {
     $db = F0FPlatform::getInstance()->getDbo();
     // If we are forcing the reload, set the last_check_timestamp to 0
     // and remove cached component update info in order to force a reload
     if ($force) {
         // Find the update site IDs
         $updateSiteIds = $this->getUpdateSiteIds();
         if (empty($updateSiteIds)) {
             return null;
         }
         // Set the last_check_timestamp to 0
         if (version_compare(JVERSION, '2.5.0', 'ge')) {
             $query = $db->getQuery(true)->update($db->qn('#__update_sites'))->set($db->qn('last_check_timestamp') . ' = ' . $db->q('0'))->where($db->qn('update_site_id') . ' IN (' . implode(', ', $updateSiteIds) . ')');
             $db->setQuery($query);
             $db->execute();
         }
         // Remove cached component update info from #__updates
         $query = $db->getQuery(true)->delete($db->qn('#__updates'))->where($db->qn('update_site_id') . ' IN (' . implode(', ', $updateSiteIds) . ')');
         $db->setQuery($query);
         $db->execute();
     }
     // Use the update cache timeout specified in com_installer
     $timeout = 3600 * F0FUtilsConfigHelper::getComponentConfigurationValue('com_installer', 'cachetimeout', '6');
     // Load any updates from the network into the #__updates table
     $this->updater->findUpdates($this->extension_id, $timeout);
     // Get the update record from the database
     $query = $db->getQuery(true)->select('*')->from($db->qn('#__updates'))->where($db->qn('extension_id') . ' = ' . $db->q($this->extension_id));
     $db->setQuery($query);
     try {
         $updateObject = $db->loadObject();
     } catch (Exception $e) {
         return null;
     }
     if (!is_object($updateObject)) {
         return null;
     }
     $updateObject->downloadurl = '';
     JLoader::import('joomla.updater.update');
     if (class_exists('JUpdate')) {
         $update = new JUpdate();
         $update->loadFromXML($updateObject->detailsurl);
         if (isset($update->get('downloadurl')->_data)) {
             $url = trim($update->downloadurl->_data);
             $extra_query = isset($updateObject->extra_query) ? $updateObject->extra_query : $this->extraQuery;
             if ($extra_query) {
                 if (strpos($url, '?') === false) {
                     $url .= '?';
                 } else {
                     $url .= '&';
                 }
                 $url .= $extra_query;
             }
             $updateObject->downloadurl = $url;
         }
     }
     return $updateObject;
 }

 /**
  * Update function.
  *
  * Sets the "result" state with the result of the operation.
  *
  * @param	Array[int] List of updates to apply
  * @since	1.6
  */
 public function update($uids)
 {
     $result = true;
     foreach ($uids as $uid) {
         $update = new JUpdate();
         $instance = JTable::getInstance('update');
         $instance->load($uid);
         $update->loadFromXML($instance->detailsurl);
         // install sets state and enqueues messages
         $res = $this->install($update);
         // Disabling the purging of the update list, instead deleting specific row
         if ($res) {
             $instance->delete($uid);
         }
         $result = $res & $result;
     }
     // Set the final state
     $this->setState('result', $result);
 }

 /**
  * Downloads an update package given an update record ID ($uid). The package is downloaded
  * and its location recorded in the session.
  *
  * @param   integer  $uid  The update record ID
  *
  * @return  True on success
  */
 public function downloadUpdate($uid)
 {
     // Unset the compressed_package session variable
     $session = JFactory::getSession();
     $session->set('compressed_package', null, 'akeeba');
     // Find the download location from the XML update stream
     jimport('joomla.updater.update');
     $update = new JUpdate();
     $instance = JTable::getInstance('update');
     $instance->load($uid);
     $update->loadFromXML($instance->detailsurl);
     if (isset($update->get('downloadurl')->_data)) {
         $url = $update->downloadurl->_data;
     } else {
         JError::raiseWarning('', JText::_('COM_INSTALLER_INVALID_EXTENSION_UPDATE'));
         return false;
     }
     // Download the package
     $p_file = JInstallerHelper::downloadPackage($url);
     // Was the package downloaded?
     if (!$p_file) {
         JError::raiseWarning('', JText::sprintf('COM_INSTALLER_PACKAGE_DOWNLOAD_FAILED', $url));
         return false;
     }
     // Store the uploaded package's location
     $config = JFactory::getConfig();
     $tmp_dest = $config->get('tmp_path');
     $session->set('compressed_package', $tmp_dest . '/' . $p_file, 'akeeba');
     return true;
 }

 public function getExtension()
 {
     // Get extension id
     $cache = JFactory::getCache();
     $cache->setCaching(1);
     $http = new JHttp();
     $http->setOption('timeout', 60);
     $api_url = new JUri();
     $input = new JInput();
     $id = $input->get('id', null, 'int');
     $release = preg_replace('/[^\\d]/', '', base64_decode($input->get('release', '', 'base64')));
     $release = intval($release / 5) * 5;
     $api_url->setScheme('http');
     $api_url->setHost('extensions.joomla.org/index.php');
     $api_url->setvar('option', 'com_jed');
     $api_url->setvar('controller', 'filter');
     $api_url->setvar('view', 'extension');
     $api_url->setvar('format', 'json');
     $api_url->setvar('filter[approved]', '1');
     $api_url->setvar('filter[published]', '1');
     $api_url->setvar('extend', '0');
     $api_url->setvar('filter[id]', $id);
     $extension_json = $cache->call(array($http, 'get'), $api_url);
     // Create item
     $items = json_decode($extension_json->body);
     $item = $items->data[0];
     $this->_catid = $item->core_catid->value;
     $item->image = $this->getBaseModel()->getMainImageUrl($item);
     $item->downloadurl = $item->download_integration_url->value;
     if (preg_match('/\\.xml\\s*$/', $item->downloadurl)) {
         $app = JFactory::getApplication();
         $product = addslashes(base64_decode($app->input->get('product', '', 'base64')));
         $release = preg_replace('/[^\\d\\.]/', '', base64_decode($app->input->get('release', '', 'base64')));
         $dev_level = (int) base64_decode($app->input->get('dev_level', '', 'base64'));
         $updatefile = JPATH_ROOT . '/libraries/joomla/updater/update.php';
         $fh = fopen($updatefile, 'r');
         $theData = fread($fh, filesize($updatefile));
         fclose($fh);
         $theData = str_replace('<?php', '', $theData);
         $theData = str_replace('$ver->PRODUCT', "'" . $product . "'", $theData);
         $theData = str_replace('$ver->RELEASE', "'" . $release . "'", $theData);
         $theData = str_replace('$ver->DEV_LEVEL', "'" . $dev_level . "'", $theData);
         eval($theData);
         $update = new JUpdate();
         $update->loadFromXML($item->downloadurl);
         $package_url_node = $update->get('downloadurl', false);
         if (isset($package_url_node->_data)) {
             $item->downloadurl = $package_url_node->_data;
         }
     }
     $item->download_type = $this->getTypeEnum($item->download_integration_type->value);
     return array($item);
 }

 /**
  * Square One Additions
  */
 public function distro_download()
 {
     $update = new JUpdate();
     $detailsurl = base64_decode(JRequest::getString('detailsurl', '', 'post'));
     if (substr($detailsurl, 0, 4) == 'http') {
         $result->result = false;
         if (substr($detailsurl, 0, -3) == 'xml') {
             // Url to an update manifest
             $update->loadFromXML($detailsurl);
             $file = JInstallerHelper::downloadPackage($update->get('downloadurl')->_data);
         } else {
             $file = JInstallerHelper::downloadPackage($detailsurl);
         }
         if (!$file) {
             $result->message = JText::_('COM_INSTALLER_MSG_INSTALL_INVALID_URL');
         } else {
             $result->result = true;
             $result->task = 'distro_download';
             $result->file = $file;
             $result->message = JText::_('COM_INSTALLER_PACKAGE_DOWNLOADED');
         }
     } else {
         // We have a file
         $config = JFactory::getConfig();
         $source = base64_decode(JRequest::getString('source'));
         JFile::move($source . '/' . $detailsurl, $config->get('tmp_path') . '/' . $detailsurl);
         $result->result = true;
         $result->task = 'distro_download';
         $result->file = $detailsurl;
         $result->message = JText::_('COM_INSTALLER_PACKAGE_FOUND');
     }
     return $result;
 }

 /**
  * Install an extension from a URL.
  *
  * @return  Package details or false on failure.
  *
  * @since   1.5
  */
 protected function _getPackageFromUrl()
 {
     $input = JFactory::getApplication()->input;
     // Get the URL of the package to install.
     $url = $input->getString('install_url');
     // Did you give us a URL?
     if (!$url) {
         JError::raiseWarning('', JText::_('COM_INSTALLER_MSG_INSTALL_ENTER_A_URL'));
         return false;
     }
     // Handle updater XML file case:
     if (preg_match('/\\.xml\\s*$/', $url)) {
         jimport('joomla.updater.update');
         $update = new JUpdate();
         $update->loadFromXml($url);
         $package_url = trim($update->get('downloadurl', false)->_data);
         if ($package_url) {
             $url = $package_url;
         }
         unset($update);
     }
     // Download the package at the URL given.
     $p_file = JInstallerHelper::downloadPackage($url);
     // Was the package downloaded?
     if (!$p_file) {
         JError::raiseWarning('', JText::_('COM_INSTALLER_MSG_INSTALL_INVALID_URL'));
         return false;
     }
     $config = JFactory::getConfig();
     $tmp_dest = $config->get('tmp_path');
     // Unpack the downloaded package file.
     $package = JInstallerHelper::unpack($tmp_dest . '/' . $p_file, true);
     return $package;
 }

 public function doInstallUpdate($update_row)
 {
     // Load
     $this->out('Loading update #' . $update_row->update_id . '...');
     $update = new JUpdate();
     $updateRow = JTable::getInstance('update');
     $updateRow->load($update_row->update_id);
     $update->loadFromXml($updateRow->detailsurl, $this->installer->params->get('minimum_stability', JUpdater::STABILITY_STABLE, 'int'));
     $update->set('extra_query', $updateRow->extra_query);
     // Download
     $tmpPath = $this->config->get('tmp_path');
     if (!is_writeable($tmpPath)) {
         $tmpPath = JPATH_BASE . '/tmp';
     }
     $url = $update->downloadurl->_data;
     if ($extra_query = $update->get('extra_query')) {
         $url .= strpos($url, '?') === false ? '?' : '&';
         $url .= $extra_query;
     }
     $this->out(' - Download ' . $url);
     $p_file = JInstallerHelper::downloadPackage($url);
     if ($p_file) {
         $filePath = $tmpPath . '/' . $p_file;
     } else {
         $this->out(' - Download Failed, Attempting alternate download method...');
         $urlFile = preg_replace('/^.*\\/(.*?)$/', '$1', $url);
         $filePath = $tmpPath . '/' . $urlFile;
         if ($fileHandle = @fopen($filePath, 'w+')) {
             $curl = curl_init($url);
             curl_setopt_array($curl, [CURLOPT_URL => $url, CURLOPT_FOLLOWLOCATION => 1, CURLOPT_BINARYTRANSFER => 1, CURLOPT_RETURNTRANSFER => 1, CURLOPT_FILE => $fileHandle, CURLOPT_TIMEOUT => 50, CURLOPT_USERAGENT => 'Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)']);
             $response = curl_exec($curl);
             if ($response === false) {
                 $this->out(' - Download Failed: ' . curl_error($curl));
                 return false;
             }
         } else {
             $this->out(' - Download Failed, Error writing ' . $filePath);
             return false;
         }
     }
     // Catch Error
     if (!is_file($filePath)) {
         $this->out(' - Download Failed/ File not found');
         return false;
     }
     // Extracting Package
     $this->out(' - Extracting Package...');
     $package = JInstallerHelper::unpack($filePath);
     if (!$package) {
         $this->out(' - Extract Failed');
         JInstallerHelper::cleanupInstall($filePath);
         return false;
     }
     // Install the package
     $this->out(' - Installing ' . $package['dir'] . '...');
     $installer = JInstaller::getInstance();
     $update->set('type', $package['type']);
     if (!$installer->update($package['dir'])) {
         $this->out(' - Update Error');
         $result = false;
     } else {
         $this->out(' - Update Success');
         $result = true;
     }
     // Cleanup the install files
     $this->out(' - Cleanup');
     JInstallerHelper::cleanupInstall($package['packagefile'], $package['extractdir']);
     // Complete
     return $result;
 }

 /**
  * Finds the url of the package to download.
  *
  * @param   string  $remote_manifest  url to the manifest XML file of the remote package
  *
  * @return  string|bool
  *
  * @since   2.5.7
  */
 protected function _getPackageUrl($remote_manifest)
 {
     $update = new JUpdate();
     $update->loadFromXml($remote_manifest);
     $downloadUrlElement = $update->get('downloadurl', false);
     if ($downloadUrlElement === false) {
         return false;
     }
     return trim($downloadUrlElement->_data);
 }

 /**
  * Regreso un array con la información de la actualización de Jokte!
  *
  * @return array
  * @since 1.1.9
  */
 public function getUpdateInformation()
 {
     // Inicializo el array a retornar
     // Ojo!!! Nueva global: VJOKTE
     // La global JVERSION se mantiene por compatibilidad con extensiones Joomla
     $ret = array('installed' => VJOKTE, 'latest' => null, 'object' => null);
     // Busco la información en la BD
     $db = $this->getDbo();
     $query = $db->getQuery(true)->select('*')->from($db->nq('#__updates'))->where($db->nq('extension_id') . ' = ' . $db->q(700));
     $db->setQuery($query);
     $updateObject = $db->loadObject();
     if (is_null($updateObject)) {
         $ret['latest'] = VJOKTE;
         return $ret;
     } else {
         $ret['latest'] = $updateObject->version;
     }
     // Busco los detalles completos de la actualización desde la URL
     jimport('joomla.updater.update');
     $update = new JUpdate();
     $update->loadFromXML($updateObject->detailsurl);
     //var_dump($update);
     // Paso el objeto a actualizar
     if ($ret['latest'] == VJOKTE) {
         $ret['object'] = null;
     } else {
         $ret['object'] = $update;
     }
     return $ret;
 }

 private function updateComponent()
 {
     JLoader::import('joomla.updater.update');
     $db = JFactory::getDbo();
     $update_site = array_shift($this->getUpdateSiteIds());
     $query = $db->getQuery(true)->select($db->qn('update_id'))->from($db->qn('#__updates'))->where($db->qn('update_site_id') . ' = ' . $update_site);
     $uid = $db->setQuery($query)->loadResult();
     $update = new JUpdate();
     $instance = JTable::getInstance('update');
     $instance->load($uid);
     $update->loadFromXML($instance->detailsurl);
     if (isset($update->get('downloadurl')->_data)) {
         $url = trim($update->downloadurl->_data);
     } else {
         return "No download URL found inside XML manifest";
     }
     $config = JFactory::getConfig();
     $tmp_dest = $config->get('tmp_path');
     if (!$tmp_dest) {
         return "Joomla temp directory is empty, please set it before continuing";
     } elseif (!JFolder::exists($tmp_dest)) {
         return "Joomla temp directory does not exists, please set the correct path before continuing";
     }
     $p_file = JInstallerHelper::downloadPackage($url);
     if (!$p_file) {
         return "An error occurred while trying to download the latest version, double check your Download ID";
     }
     // Unpack the downloaded package file
     $package = JInstallerHelper::unpack($tmp_dest . '/' . $p_file);
     if (!$package) {
         return "An error occurred while unpacking the file, please double check your Joomla temp directory";
     }
     $installer = new JInstaller();
     $installed = $installer->install($package['extractdir']);
     // Let's cleanup the downloaded archive and the temp folder
     if (JFolder::exists($package['extractdir'])) {
         JFolder::delete($package['extractdir']);
     }
     if (JFile::exists($package['packagefile'])) {
         JFile::delete($package['packagefile']);
     }
     if ($installed) {
         return "Component successfully updated";
     } else {
         return "An error occurred while trying to update the component";
     }
 }

 /**
  * Finds the url of the package to download.
  *
  * @param   string  $remote_manifest  url to the manifest XML file of the remote package
  *
  * @return  string|bool
  *
  * @since   2.5.7
  */
 protected function _getPackageUrl($remote_manifest)
 {
     $update = new JUpdate();
     $update->loadFromXml($remote_manifest);
     $package_url = trim($update->get('downloadurl', false)->_data);
     return $package_url;
 }

 /**
  * Returns an array with the Joomla! update information
  *
  * @return array
  *
  * @since 2.5.4
  */
 public function getUpdateInformation()
 {
     // Initialise the return array
     $ret = array('installed' => JVERSION, 'latest' => null, 'object' => null);
     // Fetch the update information from the database
     $db = $this->getDbo();
     $query = $db->getQuery(true)->select('*')->from($db->nq('#__updates'))->where($db->nq('extension_id') . ' = ' . $db->q(700));
     $db->setQuery($query);
     $updateObject = $db->loadObject();
     if (is_null($updateObject)) {
         $ret['latest'] = JVERSION;
         return $ret;
     } else {
         $ret['latest'] = $updateObject->version;
     }
     // Fetch the full udpate details from the update details URL
     jimport('joomla.updater.update');
     $update = new JUpdate();
     $update->loadFromXML($updateObject->detailsurl);
     // Pass the update object
     if ($ret['latest'] == JVERSION) {
         $ret['object'] = null;
     } else {
         $ret['object'] = $update;
     }
     return $ret;
 }