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<?php
/**
* ANGIE - The site restoration script for backup archives created by Akeeba Backup and Akeeba Solo
*
* @package angie
* @copyright Copyright (c)2009-2023 Nicholas K. Dionysopoulos / Akeeba Ltd
* @license GNU General Public License version 3, or later
*/
/**
* File inclusion parser.
*
* This uses an in-memory buffer to include a modified version of the file under a different class name.
*
* Only works on PHP 7 and later which allows us to catch any PHP fatal errors and fall back to the legacy parser.
*
* @since 9.1.0
*/
class AUtilsParserInclude extends AUtilsParserAbstract
{
/**
* The priority for this parser. Lower number runs first.
*
* @var int
* @since 9.1.0
*/
protected $priority = 1000;
/**
* @inheritDoc
*/
public function isSupported()
{
return version_compare(PHP_VERSION, '7.0.0', 'ge')
&& AUtilsBuffer::canRegisterWrapper();
}
/**
* @inheritDoc
*/
public function parseFile($file, $className)
{
try
{
// Create a random class name
do
{
$randomClass = 'ParseFile' . str_replace(['+', '/', '='], [
'Z', 'X', '',
], base64_encode(random_bytes(32)));
} while (class_exists($randomClass));
// Get the original file's contents and replace the class name
$contents = file_get_contents($file);
$contents = str_replace(' ' . $className . ' ', ' ' . $randomClass . ' ', $contents);
$contents = str_replace(' ' . $className . "\n", $randomClass . "\n", $contents);
$contents = str_replace(' ' . $className . "\r", $randomClass . "\r", $contents);
// Use the memory buffer to include the modified file
file_put_contents('buffer://temp.php', $contents);
include('buffer://temp.php');
// This should never happen. If it does, we fall back to the legacy parser
if (!class_exists($randomClass))
{
throw new RuntimeException('Oopsie');
}
// Create a new object from the random class and return its public properties.
$o = new $randomClass();
return get_object_vars($o);
}
/** @noinspection PhpElementIsNotAvailableInCurrentPhpVersionInspection */
catch (Throwable $e)
{
// Fallback to the legacy parser if the file throws an error.
$legacyParser = new AUtilsParserLegacy();
return $legacyParser->parseFile($file, $className);
}
}
}