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FileRise/config/config.php
2025-04-18 00:40:17 -04:00

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<?php
// config.php
// Prevent caching
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT");
header("Expires: 0");
// Security headers
header('X-Content-Type-Options: nosniff');
header("X-Frame-Options: SAMEORIGIN");
header("Referrer-Policy: no-referrer-when-downgrade");
header("Permissions-Policy: geolocation=(), microphone=(), camera=()");
header("X-XSS-Protection: 1; mode=block");
if (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') {
header("Strict-Transport-Security: max-age=31536000; includeSubDomains; preload");
}
// Define constants
define('PROJECT_ROOT', dirname(__DIR__));
define('UPLOAD_DIR', '/var/www/uploads/');
define('USERS_DIR', '/var/www/users/');
define('USERS_FILE', 'users.txt');
define('META_DIR', '/var/www/metadata/');
define('META_FILE', 'file_metadata.json');
define('TRASH_DIR', UPLOAD_DIR . 'trash/');
define('TIMEZONE', 'America/New_York');
define('DATE_TIME_FORMAT','m/d/y h:iA');
define('TOTAL_UPLOAD_SIZE','5G');
define('REGEX_FOLDER_NAME', '/^[\p{L}\p{N}_\-\s\/\\\\]+$/u');
define('PATTERN_FOLDER_NAME','[\p{L}\p{N}_\-\s\/\\\\]+');
define('REGEX_FILE_NAME', '/^[\p{L}\p{N}\p{M}%\-\.\(\) _]+$/u');
define('REGEX_USER', '/^[\p{L}\p{N}_\- ]+$/u');
date_default_timezone_set(TIMEZONE);
// Encryption helpers
function encryptData($data, $encryptionKey)
{
$cipher = 'AES-256-CBC';
$ivlen = openssl_cipher_iv_length($cipher);
$iv = openssl_random_pseudo_bytes($ivlen);
$ct = openssl_encrypt($data, $cipher, $encryptionKey, OPENSSL_RAW_DATA, $iv);
return base64_encode($iv . $ct);
}
function decryptData($encryptedData, $encryptionKey)
{
$cipher = 'AES-256-CBC';
$data = base64_decode($encryptedData);
$ivlen = openssl_cipher_iv_length($cipher);
$iv = substr($data, 0, $ivlen);
$ct = substr($data, $ivlen);
return openssl_decrypt($ct, $cipher, $encryptionKey, OPENSSL_RAW_DATA, $iv);
}
// Load encryption key
$envKey = getenv('PERSISTENT_TOKENS_KEY');
if ($envKey === false || $envKey === '') {
$encryptionKey = 'default_please_change_this_key';
error_log('WARNING: Using default encryption key. Please set PERSISTENT_TOKENS_KEY in your environment.');
} else {
$encryptionKey = $envKey;
}
// Helper to load JSON permissions (with optional decryption)
function loadUserPermissions($username)
{
global $encryptionKey;
$permissionsFile = USERS_DIR . 'userPermissions.json';
if (file_exists($permissionsFile)) {
$content = file_get_contents($permissionsFile);
$decrypted = decryptData($content, $encryptionKey);
$json = ($decrypted !== false) ? $decrypted : $content;
$perms = json_decode($json, true);
if (is_array($perms) && isset($perms[$username])) {
return !empty($perms[$username]) ? $perms[$username] : false;
}
}
return false;
}
// Determine HTTPS usage
$envSecure = getenv('SECURE');
$secure = ($envSecure !== false)
? filter_var($envSecure, FILTER_VALIDATE_BOOLEAN)
: (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off');
// Choose session lifetime based on "remember me" cookie
$defaultSession = 7200; // 2 hours
$persistentDays = 30 * 24 * 60 * 60; // 30 days
$sessionLifetime = isset($_COOKIE['remember_me_token'])
? $persistentDays
: $defaultSession;
// Configure PHP session cookie and GC
session_set_cookie_params([
'lifetime' => $sessionLifetime,
'path' => '/',
'domain' => '', // adjust if you need a specific domain
'secure' => $secure,
'httponly' => true,
'samesite' => 'Lax'
]);
ini_set('session.gc_maxlifetime', (string)$sessionLifetime);
if (session_status() === PHP_SESSION_NONE) {
session_start();
}
// CSRF token
if (empty($_SESSION['csrf_token'])) {
$_SESSION['csrf_token'] = bin2hex(random_bytes(32));
}
// Autologin via persistent token
if (empty($_SESSION["authenticated"]) && !empty($_COOKIE['remember_me_token'])) {
$tokFile = USERS_DIR . 'persistent_tokens.json';
$tokens = [];
if (file_exists($tokFile)) {
$enc = file_get_contents($tokFile);
$dec = decryptData($enc, $encryptionKey);
$tokens = json_decode($dec, true) ?: [];
}
$token = $_COOKIE['remember_me_token'];
if (!empty($tokens[$token])) {
$data = $tokens[$token];
if ($data['expiry'] >= time()) {
$_SESSION["authenticated"] = true;
$_SESSION["username"] = $data["username"];
$_SESSION["folderOnly"] = loadUserPermissions($data["username"]);
$_SESSION["isAdmin"] = !empty($data["isAdmin"]);
} else {
// expired — clean up
unset($tokens[$token]);
file_put_contents($tokFile, encryptData(json_encode($tokens, JSON_PRETTY_PRINT), $encryptionKey), LOCK_EX);
setcookie('remember_me_token', '', time() - 3600, '/', '', $secure, true);
}
}
}
// Share URL fallback
define('BASE_URL', 'http://yourwebsite/uploads/');
if (strpos(BASE_URL, 'yourwebsite') !== false) {
$defaultShare = isset($_SERVER['HTTP_HOST'])
? "http://{$_SERVER['HTTP_HOST']}/api/file/share.php"
: "http://localhost/api/file/share.php";
} else {
$defaultShare = rtrim(BASE_URL, '/') . "/api/file/share.php";
}
define('SHARE_URL', getenv('SHARE_URL') ?: $defaultShare);