demo_error_handling.php

<?php

declare(strict_types=1);

/**
 * Demonstration script for handling expired refresh tokens
 * This script shows how the improved error handling works
 */

require_once 'vendor/autoload.php';

echo "CSAS Authorize - Refresh Token Error Handling Demo\n";
echo "=================================================\n\n";

// This script demonstrates the improved error handling for expired refresh tokens
echo "The following improvements have been made:\n\n";

echo "1. Updated Token::refreshToken() method:\n";
echo "   - Added try/catch block for IdentityProviderException\n";
echo "   - Clears expired refresh token from database\n";
echo "   - Provides clear error messages\n";
echo "   - Throws RuntimeException with specific error code 24\n\n";

echo "2. Updated token.php UI:\n";
echo "   - Catches RuntimeException with code 24 (expired refresh token)\n";
echo "   - Redirects user to re-authorization page\n";
echo "   - Shows informative message about token expiration\n\n";

echo "3. Added comprehensive test coverage:\n";
echo "   - Tests for valid token refresh\n";
echo "   - Tests for expired token handling\n";
echo "   - Tests for missing refresh token scenarios\n";
echo "   - Tests for token validation methods\n\n";

echo "Error Flow:\n";
echo "1. User clicks 'Refresh' button on expired token\n";
echo "2. Token::refreshToken() catches IdentityProviderException\n";
echo "3. Expired refresh token is cleared from database\n";
echo "4. RuntimeException with code 24 is thrown\n";
echo "5. token.php catches the exception\n";
echo "6. User is redirected to auth.php for re-authorization\n";
echo "7. Clear message explains what happened\n\n";

echo "This ensures a graceful user experience when refresh tokens expire.\n";