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<?php
/**
* @package akeebabackup
* @copyright Copyright (c)2006-2023 Nicholas K. Dionysopoulos / Akeeba Ltd
* @license GNU General Public License version 3, or later
*/
namespace Akeeba\Backup\Admin\Dispatcher;
// Protect from unauthorized access
defined('_JEXEC') || die();
use Akeeba\Backup\Admin\Helper\SecretWord;
use Akeeba\Backup\Admin\Model\ControlPanel;
use Akeeba\Engine\Factory;
use Akeeba\Engine\Platform;
use AkeebaFEFHelper;
use FOF40\Container\Container;
use FOF40\Dispatcher\Dispatcher as BaseDispatcher;
use FOF40\Dispatcher\Mixin\ViewAliases;
use Joomla\CMS\Factory as JFactory;
use Joomla\CMS\Language\Text;
class Dispatcher extends BaseDispatcher
{
/** @var string The name of the default view, in case none is specified */
public $defaultView = 'ControlPanel';
use ViewAliases
{
onBeforeDispatch as onBeforeDispatchViewAliases;
}
/** @var \Akeeba\Backup\Admin\Container The container we belong to */
protected $container = null;
public function __construct(Container $container, array $config)
{
parent::__construct($container, $config);
$this->viewNameAliases = [
'buadmin' => 'Manage',
'buadmins' => 'Manage',
'config' => 'Configuration',
'configs' => 'Configuration',
'confwiz' => 'ConfigurationWizard',
'confwizs' => 'ConfigurationWizard',
'confwizes' => 'ConfigurationWizard',
'cpanel' => 'ControlPanel',
'cpanels' => 'ControlPanel',
'dbef' => 'DatabaseFilters',
'dbefs' => 'DatabaseFilters',
'eff' => 'IncludeFolders',
'effs' => 'IncludeFolders',
'fsfilter' => 'FileFilters',
'fsfilters' => 'FileFilters',
'ftpbrowser' => 'FTPBrowser',
'ftpbrowsers' => 'FTPBrowser',
'sftpbrowser' => 'SFTPBrowser',
'sftpbrowsers' => 'SFTPBrowser',
'multidb' => 'MultipleDatabases',
'multidbs' => 'MultipleDatabases',
'regexdbfilter' => 'RegExDatabaseFilters',
'regexdbfilters' => 'RegExDatabaseFilters',
'regexfsfilter' => 'RegExFileFilters',
'regexfsfilters' => 'RegExFileFilters',
'remotefile' => 'RemoteFiles',
'remotefiles' => 'RemoteFiles',
's3import' => 'S3Import',
's3imports' => 'S3Import',
];
}
/**
* Executes before dispatching the request to the appropriate controller
*/
public function onBeforeDispatch()
{
$this->container->platform->importPlugin('akeebabackup');
$this->container->platform->runPlugins('onComAkeebaDispatcherBeforeDispatch', []);
$this->onBeforeDispatchViewAliases();
// Load the FOF language
$lang = $this->container->platform->getLanguage();
$lang->load('lib_fof40', JPATH_ADMINISTRATOR, 'en-GB', true, true);
$lang->load('lib_fof40', JPATH_ADMINISTRATOR, null, true, false);
// Necessary for routing the Alice view
$this->container->inflector->addWord('Alice', 'Alices');
// Does the user have adequate permissions to access our component?
if (!$this->container->platform->authorise('core.manage', 'com_akeeba'))
{
throw new \RuntimeException(Text::_('JERROR_ALERTNOAUTHOR'), 404);
}
// FEF Renderer options. Used to load the common CSS file.
$darkMode = $this->container->params->get('dark_mode', -1);
$customCss = 'media://com_akeeba/css/akeebaui.min.css';
if ($darkMode != 0)
{
$customCss .= ', media://com_akeeba/css/dark.min.css';
}
$this->container->renderer->setOptions([
'custom_css' => $customCss,
'fef_dark' => $darkMode,
]);
// Load Akeeba Engine
$this->loadAkeebaEngine();
// Load the Akeeba Engine configuration
try
{
$this->loadAkeebaEngineConfiguration();
}
catch (\Exception $e)
{
// Maybe the tables are not installed?
/** @var ControlPanel $cPanelModel */
$cPanelModel = $this->container->factory->model('ControlPanel')->tmpInstance();
try
{
$cPanelModel->checkAndFixDatabase();
}
catch (\RuntimeException $e)
{
// The update is stuck. We will display a warning in the Control Panel
}
$msg = Text::_('COM_AKEEBA_CONTROLPANEL_MSG_REBUILTTABLES');
$this->container->platform->redirect('index.php', 307, $msg, 'warning');
}
// Prevents the "SQLSTATE[HY000]: General error: 2014" due to resource sharing with Akeeba Engine
$this->fixPDOMySQLResourceSharing();
// Load the utils helper library
Platform::getInstance()->load_version_defines();
Platform::getInstance()->apply_quirk_definitions();
// Make sure the front-end backup Secret Word is stored encrypted
$params = $this->container->params;
SecretWord::enforceEncryption($params, 'frontend_secret_word');
// Make sure we have a version loaded
@include_once($this->container->backEndPath . '/version.php');
if (!defined('AKEEBA_VERSION'))
{
define('AKEEBA_VERSION', 'dev');
define('AKEEBA_DATE', date('Y-m-d'));
}
// Create a media file versioning tag
$this->container->mediaVersion = md5(AKEEBA_VERSION . AKEEBA_DATE);
// Perform certain functionality only in HTML tasks
$format = $this->input->getCmd('format', 'html');
if ($format == 'html')
{
// Load common Javascript files. NOTE: CSS and anything style-related is loaded by the FEF Renderer class.
$this->loadCommonJavascript();
// Perform common maintenance tasks
$this->autoMaintenance();
}
// Set the linkbar style to Classic (Bootstrap tabs). The sidebar takes too much space and requires adding
// manual HTML to render it...
$this->container->renderer->setOption('linkbar_style', 'classic');
}
public function loadAkeebaEngine()
{
// Necessary defines for Akeeba Engine
if (!defined('AKEEBAENGINE'))
{
define('AKEEBAENGINE', 1);
define('AKEEBAROOT', $this->container->backEndPath . '/BackupEngine');
}
// Make sure we have a profile set throughout the component's lifetime
$profile_id = $this->container->platform->getSessionVar('profile', null, 'akeeba');
if (is_null($profile_id))
{
$this->container->platform->setSessionVar('profile', 1, 'akeeba');
}
// Load Akeeba Engine
$basePath = $this->container->backEndPath;
require_once $basePath . '/BackupEngine/Factory.php';
}
public function loadAkeebaEngineConfiguration()
{
Platform::addPlatform('joomla3x', $this->container->backEndPath . '/BackupPlatform/Joomla3x');
$akeebaEngineConfig = Factory::getConfiguration();
Platform::getInstance()->load_configuration();
unset($akeebaEngineConfig);
}
/**
* Prevents the "SQLSTATE[HY000]: General error: 2014" due to resource sharing with Akeeba Engine.
*
* @since 7.5.2
*/
protected function fixPDOMySQLResourceSharing(): void
{
// This fix only applies to PHP 7.x, not 8.x
if (version_compare(PHP_VERSION, '8.0', 'ge'))
{
return;
}
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// !!!!! WARNING: ALWAYS GO THROUGH JFactory; DO NOT GO THROUGH $this->container->db !!!!!
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
$jDbo = JFactory::getDbo();
$dbDriver = method_exists($jDbo, 'getName') ? ($jDbo->getName() ?? $jDbo->name ?? 'mysql') : 'mysql';
if ($dbDriver !== 'pdomysql')
{
return;
}
/**
* If this Joomla 3 with Site Debug enabled I need to disable database debug. If it's enabled, Joomla sends
* `SET query_cache_type = 0`. However, the query_cache_type MySQL server variable has been deprecated in MySQL
* 5.7 abd removed in MySQL 8. The PDO driver receives the error from the MySQL database and turns it into an
* untrappable Fatal Error, meaning that a try/catch won't be able to catch it. Since the connection code that
* triggers the fatal error will be called AT THE LATEST when the request terminates and at the earliest within
* the Dispatcher's loading of common JavaScript (which goes through the Joomla API) this causes the Akeeba
* Backup component to not load. Because of the weird way PDO error handling works we don't even get a Fatal
* Error which would at least clue us in as to what the heck is going on! Instead we have the main Dispatcher's
* dispatch() method handle the fatal error exception (LOLWUT?! WHY ONLY THERE?! WHAT THE HELL PHP?!) being
* thrown by the PDO driver, converting the result of onBeforeDispatch to false which is interpreted as the user
* not having access to the component, which is the error that gets reported.
*
* Talking about running into edge cases, am I right?!
*/
$isJoomla3 = version_compare(JVERSION, '3.999.999', 'le');
$isSiteDebug = (bool) JFactory::getApplication()->get('debug', 0);
$isMySQL8OrGreated = version_compare($jDbo->getVersion() ?? '8.0', '8', 'ge');
if ($isJoomla3 && $isSiteDebug && $isMySQL8OrGreated)
{
if (!method_exists($jDbo, 'setDebug'))
{
return;
}
$jDbo->setDebug(false);
}
@JFactory::getDbo()->disconnect();
}
/**
* Loads the Javascript files which are common across many views of the component.
*
* @return void
*/
private function loadCommonJavascript()
{
// Do not move: everything depends on UserInterfaceCommon
$this->container->template->addJS('media://com_akeeba/js/UserInterfaceCommon.min.js', true, false, $this->container->mediaVersion);
}
/**
* Perform common maintenance tasks
*
* @return void
*/
private function autoMaintenance()
{
/** @var \Akeeba\Backup\Admin\Model\ControlPanel $model */
$model = $this->container->factory->model('ControlPanel')->tmpInstance();
// Update the db structure if necessary (once per session at most)
$lastVersion = $this->container->platform->getSessionVar('magicParamsUpdateVersion', null, 'akeeba');
if ($lastVersion != AKEEBA_VERSION)
{
try
{
$model->checkAndFixDatabase();
$this->container->platform->setSessionVar('magicParamsUpdateVersion', AKEEBA_VERSION, 'akeeba');
}
catch (\RuntimeException $e)
{
// The update is stuck. We will display a warning in the Control Panel
}
}
// Update magic parameters if necessary
$model->updateMagicParameters();
}
}