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cookie login stuff

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This commit is contained in:
usami 2025-03-27 11:05:47 +08:00
parent 96fe9915d9
commit b69a4de7ab
4 changed files with 92 additions and 0 deletions
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29
auth_cookie.php Normal file
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<?php
session_start();
if (isset($_COOKIE['login_time']) && isset($_COOKIE['username'])) {
header("Location: welcome.php");
exit();
}
?>
<!DOCTYPE html>
<html lang="">
<head>
<title>Login</title>
</head>
<body>
<?php if (isset($_GET['error'])): ?>
<p style="color: red;">
<?php
if ($_GET['error'] === 'invalid') echo "Invalid credentials!";
if ($_GET['error'] === 'expired') echo "Session expired!";
?>
</p>
<?php endif; ?>
<form action="do_login.php" method="post">
Username: <input type="text" name="username"><br>
Password: <input type="password" name="password"><br>
<input type="submit" value="Login">
</form>
</body>
</html>

19
do_login.php Normal file
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<?php
session_start();
// 简单验证（实际应使用数据库和密码哈希）
$valid_username = 'admin';
$valid_password = 'password';
$username = $_POST['username'] ?? '';
$password = $_POST['password'] ?? '';
if ($username === $valid_username && $password === $valid_password) {
$login_time = time();
// 设置Cookie（60秒有效期）
setcookie('username', $username, $login_time + 60, '/');
setcookie('login_time', $login_time, $login_time + 60, '/');
header("Location: welcome.php");
} else {
header("Location: auth_cookie.php?error=invalid");
}
exit();

8
logout.php Normal file
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<?php
session_start();
// 清除Cookie
setcookie('username', '', time() - 3600, '/');
setcookie('login_time', '', time() - 3600, '/');
header("Location: login.php");
exit();
?>

36
welcome.php Normal file
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<?php
session_start();
// 验证Cookie
if (!isset($_COOKIE['login_time']) || !isset($_COOKIE['username'])) {
header("Location: login.php");
exit();
}
$current_time = time();
$login_time = (int)$_COOKIE['login_time'];
$remaining = 60 - ($current_time - $login_time);
if ($remaining <= 0) {
// 清除过期Cookie
setcookie('username', '', time() - 3600, '/');
setcookie('login_time', '', time() - 3600, '/');
header("Location: login.php?error=expired");
exit();
}
?>
<!DOCTYPE html>
<html>
<head>
<title>Welcome</title>
</head>
<body>
<h2>Welcome <?php echo htmlspecialchars($_COOKIE['username']); ?>!</h2>
<p>Session expires in: <?php echo $remaining; ?> seconds</p>
<a href="logout.php">Logout</a>
<script>
// 自动刷新剩余时间
setTimeout(() => location.reload(), 1000);
</script>
</body>
</html>