ECShop 安全漏洞检测与防护策略解析

// 示例代码：SQL注入漏洞
$username = $_POST['username'];
$password = $_POST['password'];
$sql = "SELECT * FROM users WHERE username='$username' AND password='$password'";

// 示例代码：使用预处理语句防止SQL注入
$stmt = $pdo->prepare("SELECT * FROM users WHERE username=:username AND password=:password");
$stmt->bindParam(':username', $username);
$stmt->bindParam(':password', $password);
$stmt->execute();

// 示例代码：XSS漏洞
echo $_GET['user_input'];

// 示例代码：防止XSS攻击
echo htmlspecialchars($_GET['user_input'], ENT_QUOTES, 'UTF-8');

// 示例代码：文件包含漏洞
$page = $_GET['page'];
include($page . '.php');

// 示例代码：防止文件包含漏洞
$page = $_GET['page'];
$allowed_pages = array('home', 'about', 'contact');
if (in_array($page, $allowed_pages)) {
    include($page . '.php');
} else {
    include('error.php');
}

// 示例代码：基本的安全防护
function sanitize_input($input) {
    return htmlspecialchars($input, ENT_QUOTES, 'UTF-8');
}

$user_input = $_POST['user_input'];
$sanitized_input = sanitize_input($user_input);

// 示例代码：使用WAF进行高级安全防护
require_once 'waf.php';
$waf = new WAF();
$waf->filter_input($_POST);

// 示例代码：调试SQL注入漏洞
function debug_sql_injection($sql) {
    if (preg_match('/[\'"].*[\'"]/', $sql)) {
        error_log("Potential SQL Injection Detected: $sql");
    }
}

$sql = "SELECT * FROM users WHERE username='" . $_POST['username'] . "'";
debug_sql_injection($sql);

// 示例代码：使用缓存优化性能
$cache = new Cache();
if (!$cache->has('product_list')) {
    $product_list = get_product_list_from_db();
    $cache->set('product_list', $product_list, 3600); // 缓存一小时
} else {
    $product_list = $cache->get('product_list');
}