JOOOMLA J4 DEBUGGER - overwrite administrator/index.php

index.php

<?php
/* + JOOOMLA DEBUGGER- will write to /administrator/logs/admin-500.log. 
   + Overwrite your /administrator/index.php root file
   + Revert back after debugging!
    ======================================================================*/
// At the very start of /administrator/index.php
if (!function_exists('debugLog')) {
    function debugLog($message, $data = null) {
        $logFile = __DIR__ . '/logs/admin-500.log';
        $timestamp = date('Y-m-d H:i:s');
        $logMessage = "[{$timestamp}] {$message}";
        if ($data !== null) {
            $logMessage .= ": " . print_r($data, true);
        }
        file_put_contents($logFile, $logMessage . PHP_EOL, FILE_APPEND);
    }
}

// Enable error reporting
ini_set('display_errors', 0);
error_reporting(E_ALL);
ini_set('log_errors', 1);
ini_set('error_log', __DIR__ . '/logs/php-errors.log');

try {
    debugLog('Admin request starting', [
        'method' => $_SERVER['REQUEST_METHOD'],
        'uri' => $_SERVER['REQUEST_URI'],
        'post' => $_POST,
        'task' => $_REQUEST['task'] ?? 'none'
    ]);

    if ($_SERVER['REQUEST_METHOD'] === 'POST') {
        debugLog('POST Headers', getallheaders());
        debugLog('POST Session', $_SESSION ?? 'No Session');
        debugLog('POST Cookies', $_COOKIE);
    }




/**
 * @package    Joomla.Administrator
 *
 * @copyright  (C) 2005 Open Source Matters, Inc. <https://www.joomla.org>
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */

// NOTE: This file should remain compatible with PHP 5.2 to allow us to run our PHP minimum check and show a friendly error message

// Define the application's minimum supported PHP version as a constant so it can be referenced within the application.
define('JOOMLA_MINIMUM_PHP', '7.2.5');

if (version_compare(PHP_VERSION, JOOMLA_MINIMUM_PHP, '<')) {
    die(
        str_replace(
            '{{phpversion}}',
            JOOMLA_MINIMUM_PHP,
            file_get_contents(dirname(__FILE__) . '/../templates/system/incompatible.html')
        )
    );
}

/**
 * Constant that is checked in included files to prevent direct access.
 * define() is used rather than "const" to not error for PHP 5.2 and lower
 */
define('_JEXEC', 1);

// Run the application - All executable code should be triggered through this file
require_once dirname(__FILE__) . '/includes/app.php';



    
} catch (Exception $e) {
    debugLog('Admin error', [
        'message' => $e->getMessage(),
        'file' => $e->getFile(),
        'line' => $e->getLine(),
        'trace' => $e->getTraceAsString()
    ]);
    throw $e;
}