primo commit

plugins/installer/webinstaller/src/Extension/WebInstaller.php

@@ -0,0 +1,192 @@
+<?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
+ */
+
+namespace Joomla\Plugin\Installer\Web\Extension;
+
+use Joomla\CMS\Application\CMSApplication;
+use Joomla\CMS\Event\Installer\AddInstallationTabEvent;
+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;
+use Joomla\Event\SubscriberInterface;
+
+// phpcs:disable PSR1.Files.SideEffects
+\defined('_JEXEC') or die;
+// phpcs:enable PSR1.Files.SideEffects
+
+/**
+ * Support for the "Install from Web" tab
+ *
+ * @since  3.2
+ */
+final class WebInstaller extends CMSPlugin implements SubscriberInterface
+{
+    /**
+     * The URL for the remote server.
+     *
+     * @var    string
+     * @since  4.0.0
+     */
+    public const REMOTE_URL = 'https://appscdn.joomla.org/webapps/';
+
+    /**
+     * The application object.
+     *
+     * @var    CMSApplication
+     * @since  4.0.0
+     * @deprecated 6.0 Is needed for template overrides, use getApplication instead
+     */
+    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;
+
+    /**
+     * Returns an array of events this subscriber will listen to.
+     *
+     * @return  array
+     *
+     * @since   5.0.0
+     */
+    public static function getSubscribedEvents(): array
+    {
+        return ['onInstallerAddInstallationTab' => 'onInstallerAddInstallationTab'];
+    }
+
+    /**
+     * Event listener for the `onInstallerAddInstallationTab` event.
+     *
+     * @param   AddInstallationTabEvent  $event  The event instance
+     *
+     * @return  void
+     *
+     * @since   4.0.0
+     */
+    public function onInstallerAddInstallationTab(AddInstallationTabEvent $event)
+    {
+        // Load language files
+        $this->loadLanguage();
+
+        $installfrom = $this->getInstallFrom();
+        $doc         = $this->getApplication()->getDocument();
+        $lang        = $this->getApplication()->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' => $lang->_('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'];
+
+        $event->addResult($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->getApplication()->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->getApplication()->getInput()->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;
+    }
+}