463 lines
15 KiB
PHP
463 lines
15 KiB
PHP
<?php
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/**
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* Authenticatie & Autorisatie Guard voor Fociz
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*/
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require_once __DIR__ . '/../config/database.php';
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require_once __DIR__ . '/totp.php';
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/**
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* Bepaalt of de huidige verbinding HTTPS gebruikt (inclusief reverse proxies / OpenResty / Docker)
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*/
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function is_https_request(): bool {
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if (!empty($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off') {
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return true;
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}
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if (!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) === 'https') {
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return true;
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}
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if (!empty($_SERVER['HTTP_X_FORWARDED_SSL']) && strtolower($_SERVER['HTTP_X_FORWARDED_SSL']) === 'on') {
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return true;
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}
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if (isset($_SERVER['SERVER_PORT']) && (int)$_SERVER['SERVER_PORT'] === 443) {
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return true;
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}
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if (defined('APP_URL') && str_starts_with(APP_URL, 'https://')) {
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return true;
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}
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return false;
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}
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function start_secure_session(): void {
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if (session_status() === PHP_SESSION_NONE) {
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// Dagsessie: verloopt iedere nacht om 23:59:59 (blijft niet meerdere dagen staan)
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$secondsUntilMidnight = max(60, strtotime('today 23:59:59') - time());
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ini_set('session.gc_maxlifetime', (string)$secondsUntilMidnight);
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ini_set('session.cookie_lifetime', (string)$secondsUntilMidnight);
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ini_set('session.use_strict_mode', '1');
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ini_set('session.use_only_cookies', '1');
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$isSecure = is_https_request();
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session_set_cookie_params([
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'lifetime' => $secondsUntilMidnight, // Verloopt vannacht om 23:59:59
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'path' => '/',
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'domain' => '',
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'secure' => $isSecure,
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'httponly' => true,
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'samesite' => 'Lax'
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]);
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session_start();
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}
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}
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/**
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* Controleert of er al een beheerder bestaat in MariaDB
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*/
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function has_admin_user(): bool {
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try {
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$db = get_db_connection();
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$stmt = $db->query("SELECT COUNT(*) FROM users WHERE role = 'ADMIN'");
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return ((int)$stmt->fetchColumn()) > 0;
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} catch (Throwable $e) {
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return false;
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}
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}
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/**
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* Garandeert dat de kolommen voor persistent sessiebeheer aanwezig zijn in MariaDB
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*/
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function ensure_remember_token_columns(PDO $db): void {
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static $columnsChecked = false;
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if ($columnsChecked) return;
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$columnsChecked = true;
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try {
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$result = $db->query("SHOW COLUMNS FROM `users` LIKE 'remember_token'");
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if (!$result || $result->rowCount() === 0) {
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$db->exec("ALTER TABLE `users` ADD COLUMN `remember_token` VARCHAR(64) NULL AFTER `backup_codes`, ADD COLUMN `remember_token_expires_at` DATETIME NULL AFTER `remember_token`");
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} else {
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// Maak alle bestaande actieve tokens direct leeg zodat geen enkele oude persistente browser-sessie blijft bestaan
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$db->exec("UPDATE `users` SET `remember_token` = NULL, `remember_token_expires_at` = NULL WHERE `remember_token` IS NOT NULL");
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}
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} catch (Throwable $e) {
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// Stil negeren indien al aanwezig of tijdens migraties
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}
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}
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/**
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* Garandeert dat de kolom voor notificatie-instellingen aanwezig is in MariaDB
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*/
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function ensure_notification_columns(PDO $db): void {
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static $notifColumnsChecked = false;
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if ($notifColumnsChecked) return;
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$notifColumnsChecked = true;
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try {
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$result = $db->query("SHOW COLUMNS FROM `users` LIKE 'notification_settings'");
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if (!$result || $result->rowCount() === 0) {
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$db->exec("ALTER TABLE `users` ADD COLUMN `notification_settings` TEXT NULL AFTER `remember_token_expires_at`");
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}
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} catch (Throwable $e) {
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// Stil negeren indien al aanwezig
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}
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}
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/**
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* Garandeert dat de kolom voor weergavethema (dark, light, system) aanwezig is in MariaDB
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*/
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function ensure_theme_column(PDO $db): void {
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static $themeChecked = false;
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if ($themeChecked) return;
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$themeChecked = true;
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try {
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$result = $db->query("SHOW COLUMNS FROM `users` LIKE 'theme'");
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if (!$result || $result->rowCount() === 0) {
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$db->exec("ALTER TABLE `users` ADD COLUMN `theme` VARCHAR(20) NOT NULL DEFAULT 'dark' AFTER `notification_settings`");
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}
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} catch (Throwable $e) {
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// Stil negeren indien al aanwezig
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}
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}
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/**
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* Verouderde functie voor persistent login.
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* Bewust geneutraliseerd: cookies worden direct gewist en geen tokens meer aangemaakt,
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* zodat gebruikers iedere dag om 23:59:59 worden uitgelogd en daadwerkelijk opnieuw moeten inloggen.
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*/
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function issue_remember_token(int $userId): string {
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clear_remember_cookie();
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try {
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$db = get_db_connection();
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ensure_remember_token_columns($db);
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$stmt = $db->prepare("UPDATE users SET remember_token = NULL, remember_token_expires_at = NULL WHERE id = ?");
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$stmt->execute([$userId]);
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} catch (Throwable $e) {}
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return '';
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}
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/**
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* Verwijdert de persistente remember cookie uit de browser
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*/
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function clear_remember_cookie(): void {
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$isSecure = is_https_request();
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setcookie('fociz_remember', '', [
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'expires' => time() - 86400,
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'path' => '/',
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'secure' => $isSecure,
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'httponly' => true,
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'samesite' => 'Lax'
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]);
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if (isset($_COOKIE['fociz_remember'])) {
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unset($_COOKIE['fociz_remember']);
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}
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}
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/**
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* Haalt de huidige ingelogde gebruiker op uit de database.
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* Garandeert dat de sessie strikt om 23:59:59 gereset wordt en nooit meerdere dagen blijft staan.
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* Bevat GEEN persistente cookies of auto-login bypass: de gebruiker moet iedere dag daadwerkelijk opnieuw inloggen.
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*/
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function get_logged_in_user(): ?array {
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start_secure_session();
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$today = date('Y-m-d');
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$now = time();
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// Verwijder altijd eventuele oude of achtergebleven fociz_remember cookies
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if (isset($_COOKIE['fociz_remember'])) {
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clear_remember_cookie();
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}
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// Controleer of de sessie van een eerdere dag is of voorbij 23:59:59
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$isExpired = false;
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if (!empty($_SESSION['auth_date']) && $_SESSION['auth_date'] !== $today) {
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$isExpired = true;
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}
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if (!empty($_SESSION['session_expires_at']) && $now > (int)$_SESSION['session_expires_at']) {
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$isExpired = true;
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}
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if ($isExpired) {
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$_SESSION = ['session_was_expired' => true];
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clear_remember_cookie();
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if (session_status() === PHP_SESSION_ACTIVE) {
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@session_regenerate_id(true);
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}
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return null;
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}
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// Controleer actieve PHP sessie (uitsluitend de sessie van vandaag is geldig)
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if (!empty($_SESSION['user_id']) && !empty($_SESSION['is_2fa_verified'])) {
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$db = get_db_connection();
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ensure_remember_token_columns($db);
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$stmt = $db->prepare("SELECT id, name, email, role, two_factor_enabled, created_at FROM users WHERE id = ?");
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$stmt->execute([$_SESSION['user_id']]);
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$user = $stmt->fetch();
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if ($user) {
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$_SESSION['auth_date'] = $today;
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$_SESSION['session_expires_at'] = strtotime('today 23:59:59');
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return $user;
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}
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// Gebruiker bestaat niet meer in database
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$_SESSION = [];
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clear_remember_cookie();
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}
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return null;
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}
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/**
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* Beschermt pagina's: dwingt login + 2FA af
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*/
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function require_auth(bool $json = false): array {
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start_secure_session();
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$isAjax = $json ||
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(isset($_SERVER['HTTP_ACCEPT']) && str_contains($_SERVER['HTTP_ACCEPT'], 'application/json')) ||
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(isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) === 'xmlhttprequest');
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// 1. Controleer of eerste setup nodig is
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if (!has_admin_user()) {
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if ($isAjax) {
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http_response_code(401);
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header('Content-Type: application/json');
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echo json_encode(['success' => false, 'error' => 'Setup vereist']);
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exit;
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}
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header('Location: /auth/setup.php');
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exit;
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}
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// 2. Controleer of gebruiker ingelogd én 2FA geverifieerd is voor vandaag
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$user = get_logged_in_user();
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if (!$user) {
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if ($isAjax) {
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http_response_code(401);
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header('Content-Type: application/json');
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echo json_encode(['success' => false, 'error' => 'Niet geauthenticeerd of sessie verlopen']);
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exit;
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}
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$wasExpired = !empty($_SESSION['session_was_expired']);
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unset($_SESSION['session_was_expired']);
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if ($wasExpired) {
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header('Location: /auth/login.php?expired=1');
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} else {
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header('Location: /auth/login.php');
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}
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exit;
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}
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return $user;
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}
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/**
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* Dwingt beheerder (ADMIN) rol af
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*/
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function require_admin(): array {
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$user = require_auth();
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if ($user['role'] !== 'ADMIN') {
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header('Location: /planner.php');
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exit;
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}
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return $user;
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}
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/**
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* Maakt een nieuwe uitnodiging aan voor een collega
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*/
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function create_invite(int $createdById, string $email, string $role = 'MEMBER'): string {
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$db = get_db_connection();
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$token = bin2hex(random_bytes(24));
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$expiresAt = date('Y-m-d H:i:s', strtotime('+7 days'));
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$stmt = $db->prepare("INSERT INTO invites (token, email, role, expires_at, created_by_id) VALUES (?, ?, ?, ?, ?)");
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$stmt->execute([$token, strtolower(trim($email)), $role, $expiresAt, $createdById]);
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return $token;
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}
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/**
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* Valideert een invite token
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*/
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function validate_invite(string $token): ?array {
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$db = get_db_connection();
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$stmt = $db->prepare("
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SELECT i.*, u.name as inviter_name, u.email as inviter_email
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FROM invites i
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JOIN users u ON i.created_by_id = u.id
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WHERE i.token = ?
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");
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$stmt->execute([$token]);
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$invite = $stmt->fetch();
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if (!$invite) return null;
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if ($invite['used_at'] !== null) return null;
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if (strtotime($invite['expires_at']) < time()) return null;
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return $invite;
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}
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/**
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* CSRF token helpers
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*/
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function get_csrf_token(): string {
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start_secure_session();
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if (empty($_SESSION['csrf_token'])) {
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$_SESSION['csrf_token'] = bin2hex(random_bytes(32));
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}
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return $_SESSION['csrf_token'];
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}
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function verify_csrf_token(?string $token): bool {
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start_secure_session();
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return !empty($token) && !empty($_SESSION['csrf_token']) && hash_equals($_SESSION['csrf_token'], $token);
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}
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/**
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* Genereert een cryptografisch ondertekende OAuth state parameter waarin de user_id en timestamp veilig zijn opgeslagen.
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* Dit voorkomt CSRF en maakt sessieherstel mogelijk bij cross-site OAuth redirects.
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*/
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function generate_oauth_state(int $userId): string {
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$secret = defined('APP_SECRET') ? APP_SECRET : (defined('DB_PASS') ? DB_PASS : 'fociz_oauth_salt_2026');
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$payload = [
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'uid' => $userId,
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'ts' => time(),
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'rnd' => bin2hex(random_bytes(8))
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];
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$json = json_encode($payload);
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$b64 = rtrim(strtr(base64_encode($json), '+/', '-_'), '=');
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$sig = hash_hmac('sha256', $b64, $secret);
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return $b64 . '.' . $sig;
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}
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/**
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* Valideert een ontvangen OAuth state parameter en geeft bij succes het geverifieerde user_id terug.
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* Geeft null terug bij ongeldige handtekening of verlopen state (> 30 minuten).
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*/
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function verify_oauth_state(string $state): ?int {
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$secret = defined('APP_SECRET') ? APP_SECRET : (defined('DB_PASS') ? DB_PASS : 'fociz_oauth_salt_2026');
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$parts = explode('.', $state, 2);
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if (count($parts) !== 2) {
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return null;
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}
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[$b64, $sig] = $parts;
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$expectedSig = hash_hmac('sha256', $b64, $secret);
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if (!hash_equals($expectedSig, $sig)) {
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return null;
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}
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$remainder = strlen($b64) % 4;
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if ($remainder) {
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$b64 .= str_repeat('=', 4 - $remainder);
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}
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$json = base64_decode(strtr($b64, '-_', '+/'));
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$payload = json_decode($json, true);
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if (!is_array($payload) || empty($payload['uid']) || empty($payload['ts'])) {
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return null;
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}
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// Geldigheidsduur: maximaal 30 minuten (1800 seconden)
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if (time() - (int)$payload['ts'] > 1800) {
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return null;
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}
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return (int)$payload['uid'];
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}
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/**
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* Haalt de persoonlijke notificatie-instellingen van een gebruiker op
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*/
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function get_user_notification_settings(int $userId): array {
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$db = get_db_connection();
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ensure_notification_columns($db);
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$defaults = [
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'enabled' => 1,
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'lead_time_minutes' => 5, // 0, 2, 5, 10, 15, 30
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'repeat_count' => 2, // 1, 2, 3, 5
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'repeat_interval_minutes' => 2, // 1, 2, 3, 5
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'sound_enabled' => 1, // 0 of 1
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];
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try {
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$stmt = $db->prepare("SELECT notification_settings FROM users WHERE id = ?");
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$stmt->execute([$userId]);
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$json = $stmt->fetchColumn();
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if (!empty($json)) {
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$saved = json_decode($json, true);
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if (is_array($saved)) {
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return array_merge($defaults, $saved);
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}
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}
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} catch (Throwable $e) {
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error_log("get_user_notification_settings error: " . $e->getMessage());
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}
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return $defaults;
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}
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/**
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* Slaat de persoonlijke notificatie-instellingen van een gebruiker op
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*/
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function update_user_notification_settings(int $userId, array $settings): bool {
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$db = get_db_connection();
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ensure_notification_columns($db);
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$current = get_user_notification_settings($userId);
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$merged = [
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'enabled' => !empty($settings['enabled']) ? 1 : 0,
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'lead_time_minutes' => max(0, min(60, (int)($settings['lead_time_minutes'] ?? $current['lead_time_minutes']))),
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'repeat_count' => max(1, min(10, (int)($settings['repeat_count'] ?? $current['repeat_count']))),
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'repeat_interval_minutes' => max(1, min(30, (int)($settings['repeat_interval_minutes'] ?? $current['repeat_interval_minutes']))),
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'sound_enabled' => !empty($settings['sound_enabled']) ? 1 : 0,
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];
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try {
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$stmt = $db->prepare("UPDATE users SET notification_settings = ? WHERE id = ?");
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return $stmt->execute([json_encode($merged), $userId]);
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} catch (Throwable $e) {
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error_log("update_user_notification_settings error: " . $e->getMessage());
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return false;
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}
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}
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/**
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* Haalt het voorkeursthema op voor een gebruiker ('dark', 'light' of 'system')
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*/
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function get_user_theme(int $userId): string {
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$db = get_db_connection();
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ensure_theme_column($db);
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try {
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$stmt = $db->prepare("SELECT theme FROM users WHERE id = ?");
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$stmt->execute([$userId]);
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$theme = $stmt->fetchColumn();
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if ($theme && in_array($theme, ['dark', 'light', 'system'])) {
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return $theme;
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}
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} catch (Throwable $e) {
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error_log("get_user_theme error: " . $e->getMessage());
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}
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return 'dark';
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}
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/**
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* Slaat het voorkeursthema van een gebruiker op ('dark', 'light' of 'system')
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*/
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function update_user_theme(int $userId, string $theme): bool {
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$db = get_db_connection();
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ensure_theme_column($db);
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$theme = in_array($theme, ['dark', 'light', 'system']) ? $theme : 'dark';
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try {
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$stmt = $db->prepare("UPDATE users SET theme = ? WHERE id = ?");
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return $stmt->execute([$theme, $userId]);
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} catch (Throwable $e) {
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error_log("update_user_theme error: " . $e->getMessage());
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return false;
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}
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}
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