project-structure-viewer/index.php at master · wnunezc/project-structure-viewer · GitHub

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<?php
/**
 * Project Structure Viewer - Standalone Web Entry Point
 *
 * This file allows you to use the library directly on a web server
 * without Composer installation. Just upload the entire project folder
 * and access this file via browser.
 *
 * @author Walter Nuñez
 * @version 1.0
 * @encoding UTF-8
 */

// Set proper headers for HTML output
header('Content-Type: text/html; charset=UTF-8');

// Error handling for development
error_reporting(E_ALL);
ini_set('display_errors', '1');

// Manual autoloader for standalone usage
spl_autoload_register(function ($class) {
    // Convert namespace to file path
    $prefix = 'ProjectStructureViewer\\';
    $baseDir = __DIR__ . '/src/';

    // Check if the class uses our namespace
    $len = strlen($prefix);
    if (strncmp($prefix, $class, $len) !== 0) {
        return;
    }

    // Get the relative class name
    $relativeClass = substr($class, $len);

    // Replace namespace separators with directory separators
    $file = $baseDir . str_replace('\\', '/', $relativeClass) . '.php';

    // If the file exists, require it
    if (file_exists($file)) {
        require $file;
    }
});

// Import the main class
use ProjectStructureViewer\ProjectStructureViewer;

try {

    // Get parameters from URL
    $projectRoot = $_GET['path'] ?? __DIR__;
    $format = $_GET['format'] ?? 'html';
    $title = $_GET['title'] ?? null;

    // Validate and sanitize project root
    if (!is_dir($projectRoot)) {
        throw new Exception('El directorio especificado no existe: ' . htmlspecialchars($projectRoot));
    }

    $projectRoot = realpath($projectRoot);
    if ($projectRoot === false) {
        throw new Exception('No se pudo resolver la ruta del directorio.');
    }

    // Security check: prevent access to system directories
    // But allow access to the current project directory even if it's in /var/www
    $currentProjectDir = realpath(__DIR__);
    $isCurrentProject = ($projectRoot === $currentProjectDir);

    if (!$isCurrentProject) {
        $restrictedPaths = [
            '/etc', '/var', '/usr', '/bin', '/sbin', '/root', '/sys', '/proc',
            'C:\\Windows', 'C:\\Program Files', 'C:\\Program Files (x86)',
            'C:\\Users\\All Users', 'C:\\ProgramData'
        ];

        foreach ($restrictedPaths as $restrictedPath) {
            if (strpos($projectRoot, $restrictedPath) === 0) {
                throw new Exception('Acceso denegado a directorios del sistema.');
            }
        }
    }

    // Create viewer instance
    $viewer = new ProjectStructureViewer($projectRoot);

    // Generate title if not provided
    if ($title === null) {
        $title = 'Estructura del Proyecto: ' . basename($projectRoot);
    }

    // Handle different output formats
    switch (strtolower($format)) {
        case 'json':
            header('Content-Type: application/json; charset=UTF-8');
            echo $viewer->toJson();
            break;

        case 'array':
            header('Content-Type: application/json; charset=UTF-8');
            echo json_encode($viewer->toArray(), JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
            break;

        case 'compact':
            header('Content-Type: application/json; charset=UTF-8');
            $structure = $viewer->generateStructure();
            echo json_encode($structure, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
            break;

        case 'html':
        default:
            $viewer->display($title);
            break;
    }

} catch (Exception $e) {
    // Error page
    http_response_code(500);
    ?>
    <!DOCTYPE html>
    <html lang="es">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>Project Structure Viewer - Error</title>
        <style>
            body {
                font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
                background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
                color: #333;
                line-height: 1.6;
                margin: 0;
                padding: 20px;
                min-height: 100vh;
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .error-container {
                max-width: 600px;
                background: #fff;
                padding: 40px;
                border-radius: 15px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
                text-align: center;
            }
            .error-icon {
                font-size: 4em;
                margin-bottom: 20px;
            }
            .error-header h1 {
                color: #e74c3c;
                margin: 0 0 10px 0;
                font-size: 2em;
            }
            .error-message {
                background: #f8f9fa;
                border-left: 4px solid #e74c3c;
                padding: 20px;
                margin: 20px 0;
                text-align: left;
                border-radius: 5px;
                font-family: 'Courier New', monospace;
                color: #721c24;
            }
            .error-help {
                background: #e8f5e8;
                padding: 20px;
                border-radius: 8px;
                margin: 20px 0;
                text-align: left;
            }
            .error-help h3 {
                margin-top: 0;
                color: #155724;
            }
            .usage-examples {
                background: #f1f3f4;
                padding: 15px;
                border-radius: 5px;
                margin: 10px 0;
                font-family: 'Courier New', monospace;
                font-size: 0.9em;
                text-align: left;
            }
            .back-link {
                display: inline-block;
                background: #667eea;
                color: white;
                padding: 12px 25px;
                text-decoration: none;
                border-radius: 25px;
                margin-top: 20px;
                transition: background 0.3s;
            }
            .back-link:hover {
                background: #5a67d8;
            }
        </style>
    </head>
    <body>
        <div class="error-container">
            <div class="error-icon">⚠️</div>
            <div class="error-header">
                <h1>Error en Project Structure Viewer</h1>
            </div>

            <div class="error-message">
                <strong>Error:</strong> <?php echo htmlspecialchars($e->getMessage()); ?>
            </div>

            <div class="error-help">
                <h3>💡 Soluciones Posibles:</h3>
                <ul>
                    <li>Verifica que el directorio existe y es accesible</li>
                    <li>Asegúrate de que los archivos PHP tienen los permisos correctos</li>
                    <li>Comprueba que todas las clases están en la carpeta <code>src/</code></li>
                    <li>Intenta acceder desde el directorio raíz del proyecto</li>
                </ul>

                <h3>📖 Ejemplos de Uso:</h3>
                <div class="usage-examples">
                    <strong>Uso básico:</strong><br>
                    <?php echo htmlspecialchars($_SERVER['HTTP_HOST'] . dirname($_SERVER['REQUEST_URI'])); ?>/index.php<br><br>

                    <strong>Directorio específico:</strong><br>
                    <?php echo htmlspecialchars($_SERVER['HTTP_HOST'] . dirname($_SERVER['REQUEST_URI'])); ?>/index.php?path=/ruta/al/proyecto<br><br>

                    <strong>Formato JSON:</strong><br>
                    <?php echo htmlspecialchars($_SERVER['HTTP_HOST'] . dirname($_SERVER['REQUEST_URI'])); ?>/index.php?format=json<br><br>

                    <strong>Con título personalizado:</strong><br>
                    <?php echo htmlspecialchars($_SERVER['HTTP_HOST'] . dirname($_SERVER['REQUEST_URI'])); ?>/index.php?title=Mi%20Proyecto
                </div>
            </div>

            <a href="javascript:history.back()" class="back-link">← Volver</a>
        </div>
    </body>
    </html>
    <?php
}
?>