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Login umgestellt auf tokem je Gerät

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Borgal
2025-08-14 21:37:04 +02:00
parent 54209f1126
commit 5ff1c87f6d
3 changed files with 62 additions and 94 deletions
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45
login.php
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@@ -2,12 +2,12 @@
session_start();
include('inc/db.php');
$error = '';
if ($_SERVER["REQUEST_METHOD"] == "POST") {
$username = $_POST['username'];
$password = $_POST['password'];
// 1. Prepared Statement vorbereiten
$stmt = mysqli_prepare($conn, "SELECT id, username, password, email, role FROM users WHERE username = ?");
if ($stmt) {
mysqli_stmt_bind_param($stmt, "s", $username);
@@ -23,18 +23,19 @@ if ($_SERVER["REQUEST_METHOD"] == "POST") {
$_SESSION['email'] = $user['email'];
$_SESSION['role'] = $user['role'];
// Token generieren und in der Datenbank speichern
// Neuen Login-Token für die geräteübergreifende Anmeldung erstellen
$token = bin2hex(random_bytes(32));
$update_stmt = mysqli_prepare($conn, "UPDATE users SET login_token = ? WHERE id = ?");
if ($update_stmt) {
mysqli_stmt_bind_param($update_stmt, "si", $token, $user['id']);
mysqli_stmt_execute($update_stmt);
mysqli_stmt_close($update_stmt);
}
$expires_at = date('Y-m-d H:i:s', strtotime('+30 days'));
// Cookies setzen, die 30 Tage gültig sind
setcookie('auth_token', $token, time() + (86400 * 30), "/");
setcookie('user_id', $user['id'], time() + (86400 * 30), "/");
// Token in der neuen `login_tokens` Tabelle speichern
$sql_token = "INSERT INTO login_tokens (user_id, token, expires_at) VALUES (?, ?, ?)";
$stmt_token = mysqli_prepare($conn, $sql_token);
mysqli_stmt_bind_param($stmt_token, "iss", $user['id'], $token, $expires_at);
mysqli_stmt_execute($stmt_token);
mysqli_stmt_close($stmt_token);
// Cookie mit dem Token setzen
setcookie('remember_token', $token, time() + (86400 * 30), "/");
header("Location: index.php");
exit();
@@ -42,11 +43,9 @@ if ($_SERVER["REQUEST_METHOD"] == "POST") {
$error = "Login fehlgeschlagen.";
}
} else {
// Fehler beim Vorbereiten des Statements
$error = "Datenbankfehler.";
}
}
?>
<!DOCTYPE html>
@@ -56,31 +55,22 @@ if ($_SERVER["REQUEST_METHOD"] == "POST") {
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>DoMiLi – Login</title>
<!-- Bootstrap CSS -->
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
<!-- Google Fonts Icons -->
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined" rel="stylesheet">
<!-- Custom styles -->
<link rel="stylesheet" href="css/style.css">
</head>
<body>
<div class="container d-flex justify-content-center align-items-start min-vh-100 py-4 pt-5">
<div class="container d-flex justify-content-center align-items-start py-4 pt-5">
<div class="card bg-light shadow w-100" style="max-width: 400px;">
<div class="card-body">
<h4 class="card-title text-center mb-4 fs-3">DoMiLi Login</h4>
<?php if (isset($error)) {
?>
<?php if ($error) { ?>
<div class="alert alert-danger" role="alert">
<?php echo $error; ?>
</div>
<?php
}
?>
<?php } ?>
<form method="post" action="">
<div class="mb-3">
<label for="username" class="form-label">Benutzername</label>
@@ -97,6 +87,7 @@ if ($_SERVER["REQUEST_METHOD"] == "POST") {
</div>
</div>
</div>
<?php include('inc/footer.php'); ?>
</body>
<?php include('inc/footer.php'); ?>
</html>