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编辑当前文件:/home2/sdektunc/.trash/plugins/installer/webinstaller/webinstaller.php

<?php
/**
 * @package     Joomla.Plugin
 * @subpackage  Installer.webinstaller
 *
 * @copyright   (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
 * @license     GNU General Public License version 2 or later; see LICENSE.txt
 */

defined('_JEXEC') or die;

use Joomla\CMS\Application\CMSApplication;
use Joomla\CMS\Form\Rule\UrlRule;
use Joomla\CMS\Language\Text;
use Joomla\CMS\Plugin\CMSPlugin;
use Joomla\CMS\Plugin\PluginHelper;
use Joomla\CMS\Updater\Update;
use Joomla\CMS\Uri\Uri;
use Joomla\CMS\Version;

/**
 * Support for the "Install from Web" tab
 *
 * @since  3.2
 */
class PlgInstallerWebinstaller extends CMSPlugin
{
	/**
	 * The URL for the remote server.
	 *
	 * @var    string
	 * @since  4.0.0
	 */
	const REMOTE_URL = 'https://appscdn.joomla.org/webapps/';

/**
	 * The application object.
	 *
	 * @var    CMSApplication
	 * @since  4.0.0
	 */
	protected $app;

/**
	 * The URL to install from
	 *
	 * @var    string|null
	 * @since  4.0.0
	 */
	private $installfrom = null;

/**
	 * Flag if the document is in a RTL direction
	 *
	 * @var    integer|null
	 * @since  4.0.0
	 */
	private $rtl = null;

/**
	 * Event listener for the `onInstallerAddInstallationTab` event.
	 *
	 * @return  array  Returns an array with the tab information
	 *
	 * @since   4.0.0
	 */
	public function onInstallerAddInstallationTab()
	{
		// Load language files
		$this->loadLanguage();

$installfrom = $this->getInstallFrom();
		$doc         = $this->app->getDocument();
		$lang        = $this->app->getLanguage();

// Push language strings to the JavaScript store
		Text::script('PLG_INSTALLER_WEBINSTALLER_CANNOT_INSTALL_EXTENSION_IN_PLUGIN');
		Text::script('PLG_INSTALLER_WEBINSTALLER_REDIRECT_TO_EXTERNAL_SITE_TO_INSTALL');

$doc->getWebAssetManager()
			->registerAndUseStyle('plg_installer_webinstaller.client', 'plg_installer_webinstaller/client.min.css')
			->registerAndUseScript(
				'plg_installer_webinstaller.client',
				'plg_installer_webinstaller/client.min.js',
				[],
				['type' => 'module'],
				['core']
			);

$devLevel = Version::PATCH_VERSION;

if (!empty(Version::EXTRA_VERSION))
		{
			$devLevel .= '-' . Version::EXTRA_VERSION;
		}

$doc->addScriptOptions(
			'plg_installer_webinstaller',
			[
				'base_url'        => addslashes(self::REMOTE_URL),
				'installat_url'   => base64_encode(Uri::current() . '?option=com_installer&view=install'),
				'installfrom_url' => addslashes($installfrom),
				'product'         => base64_encode(Version::PRODUCT),
				'release'         => base64_encode(Version::MAJOR_VERSION . '.' . Version::MINOR_VERSION),
				'dev_level'       => base64_encode($devLevel),
				'installfromon'   => $installfrom ? 1 : 0,
				'language'        => base64_encode($lang->getTag()),
				'installFrom'     => $installfrom != '' ? 4 : 5,
			]
		);

$tab = [
			'name'  => 'web',
			'label' => Text::_('PLG_INSTALLER_WEBINSTALLER_TAB_LABEL'),
		];

// Render the input
		ob_start();
		include PluginHelper::getLayoutPath('installer', 'webinstaller');
		$tab['content'] = ob_get_clean();
		$tab['content'] = '<legend>' . $tab['label'] . '</legend>' . $tab['content'];

return $tab;
	}

/**
	 * Internal check to determine if the output is in a RTL direction
	 *
	 * @return  integer
	 *
	 * @since   3.2
	 */
	private function isRTL()
	{
		if ($this->rtl === null)
		{
			$this->rtl = strtolower($this->app->getDocument()->getDirection()) === 'rtl' ? 1 : 0;
		}

return $this->rtl;
	}

/**
	 * Get the install from URL
	 *
	 * @return  string
	 *
	 * @since   3.2
	 */
	private function getInstallFrom()
	{
		if ($this->installfrom === null)
		{
			$installfrom = base64_decode($this->app->input->getBase64('installfrom', ''));

$field = new SimpleXMLElement('<field></field>');

if ((new UrlRule)->test($field, $installfrom) && preg_match('/\.xml\s*$/', $installfrom))
			{
				$update = new Update;
				$update->loadFromXml($installfrom);
				$package_url = trim($update->get('downloadurl', false)->_data);

if ($package_url)
				{
					$installfrom = $package_url;
				}
			}

$this->installfrom = $installfrom;
		}

return $this->installfrom;
	}
}