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administrator/manifests/packages/akeebabackup/script.akeebabackup.php

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+<?php
+/**
+ * @package   akeebabackup
+ * @copyright Copyright (c)2006-2022 Nicholas K. Dionysopoulos / Akeeba Ltd
+ * @license   GNU General Public License version 3, or later
+ */
+
+/** @noinspection PhpUnused */
+
+defined('_JEXEC') || die;
+
+use Akeeba\Component\AkeebaBackup\Administrator\Model\UpgradeModel;
+use Joomla\CMS\Factory;
+use Joomla\CMS\Installer\Adapter\PackageAdapter;
+use Joomla\CMS\Installer\InstallerAdapter;
+use Joomla\Database\DatabaseDriver;
+use Joomla\Database\DatabaseInterface;
+
+/**
+ * Akeeba Backup package extension installation script file.
+ *
+ * @see https://docs.joomla.org/Manifest_files#Script_file
+ * @see UpgradeModel
+ */
+class Pkg_AkeebabackupInstallerScript extends \Joomla\CMS\Installer\InstallerScript
+{
+	/**
+	 * @var   DatabaseDriver|DatabaseInterface|null
+	 * @since 9.3.0
+	 */
+	protected $dbo;
+
+	protected $minimumPhp = '7.4.0';
+
+	protected $minimumJoomla = '4.2.0';
+
+	public function preflight($type, $parent)
+	{
+		if (!parent::preflight($type, $parent))
+		{
+			return false;
+		}
+
+		$this->setDboFromAdapter($parent);
+
+		// Do not run on uninstall.
+		if ($type === 'uninstall')
+		{
+			return true;
+		}
+
+		define('AKEEBABACKUP_INSTALLATION_PRO', is_file($parent->getParent()->getPath('source') . '/com_akeebabackup-pro.zip'));
+
+		return true;
+	}
+
+	/**
+	 * Called after any type of installation / uninstallation action.
+	 *
+	 * @param   string          $type    Which action is happening (install|uninstall|discover_install|update)
+	 * @param   PackageAdapter  $parent  The object responsible for running this script
+	 *
+	 * @return  bool
+	 * @since   9.0.0
+	 */
+	public function postflight(string $type, PackageAdapter $parent): bool
+	{
+		$this->setDboFromAdapter($parent);
+
+		// Do not run on uninstall.
+		if ($type === 'uninstall')
+		{
+			return true;
+		}
+
+		$model = $this->getUpgradeModel();
+
+		if (empty($model))
+		{
+			return true;
+		}
+
+		return $model->postflight($type, $parent);
+	}
+
+	/**
+	 * Get the UpgradeModel of the installed component
+	 *
+	 * @return  UpgradeModel|null  The upgrade Model. NULL if it cannot be loaded.
+	 * @since   9.0.0
+	 */
+	private function getUpgradeModel(): ?UpgradeModel
+	{
+		// Make sure the latest version of the Model file will be loaded, regardless of the OPcache state.
+		$filePath = JPATH_ADMINISTRATOR . '/components/com_akeebabackup/src/Model/UpgradeModel.php';
+
+		if (function_exists('opcache_invalidate'))
+		{
+			opcache_invalidate($filePath = JPATH_ADMINISTRATOR . '/components/com_akeebabackup/src/Model/UpgradeModel.php');
+		}
+
+		// Can I please load the model?
+		if (!class_exists('\Akeeba\Component\AkeebaBackup\Administrator\Model\UpgradeModel'))
+		{
+			if (!file_exists($filePath) || !is_readable($filePath))
+			{
+				return null;
+			}
+
+			include_once $filePath;
+		}
+
+		if (!class_exists('\Akeeba\Component\AkeebaBackup\Administrator\Model\UpgradeModel'))
+		{
+			return null;
+		}
+
+		try
+		{
+			$upgradeModel = new UpgradeModel();
+		}
+		catch (Throwable $e)
+		{
+			return null;
+		}
+
+		if (method_exists($upgradeModel, 'setDatabase'))
+		{
+			$upgradeModel->setDatabase($this->dbo ?? Factory::getContainer()->get('DatabaseDriver'));
+		}
+		elseif (method_exists($upgradeModel, 'setDbo'))
+		{
+			$upgradeModel->setDbo($this->dbo ?? Factory::getContainer()->get('DatabaseDriver'));
+		}
+
+		if (method_exists($upgradeModel, 'init'))
+		{
+			$upgradeModel->init();
+		}
+
+		return $upgradeModel;
+	}
+
+	/**
+	 * Set the database object from the installation adapter, if possible
+	 *
+	 * @param   InstallerAdapter|mixed  $adapter  The installation adapter, hopefully.
+	 *
+	 * @since   9.3.0
+	 * @return  void
+	 */
+	private function setDboFromAdapter($adapter): void
+	{
+		$this->dbo = null;
+
+		if (class_exists(InstallerAdapter::class) && ($adapter instanceof InstallerAdapter))
+		{
+			/**
+			 * If this is Joomla 4.2+ the adapter has a protected getDatabase() method which we can access with the
+			 * magic property $adapter->db. On Joomla 4.1 and lower this is not available. So, we have to first figure
+			 * out if we can actually use the magic property...
+			 */
+
+			try
+			{
+				$refObj = new ReflectionObject($adapter);
+
+				if ($refObj->hasMethod('getDatabase'))
+				{
+					$this->dbo = $adapter->db;
+
+					return;
+				}
+			}
+			catch (Throwable $e)
+			{
+				// If something breaks we will fall through
+			}
+		}
+
+		$this->dbo = Factory::getContainer()->get('DatabaseDriver');
+	}
+}