willes_AI/inc/php/auth.php

<?php
session_start();
require_once($_SERVER['DOCUMENT_ROOT'] . '/db.php');

function isAuthenticated() {
    if (!isset($_SESSION['user_id']) || !isset($_SESSION['uniqueid'])) {
        return false;
    }

    $conn = getConnection();
    $stmt = $conn->prepare("SELECT id FROM users WHERE id = :id AND uniqueid = :uniqueid");
    $stmt->execute([
        'id' => $_SESSION['user_id'],
        'uniqueid' => $_SESSION['uniqueid'],
    ]);

    return $stmt->fetch() !== false;
}

if (!isAuthenticated()) {
    header("Location: /landing.php");
    exit();
}
?>