class Login
{
protected $pdo;
public function __construct()
{
//链接数据库
$this->connectDB();
}
protected function connectDB()
{
$dsn = "mysql:host=localhost;dbname=demo;charset=utf8";
$this->pdo = new PDO($dsn, 'root', 'root');
}
//显示登录页
public function loginPage()
{
include_once('./html/login.html');
}
//接受用户数据做登录
public function handlerLogin()
{
$email = $_POST['email'];
$pass = $_POST['pass'];
//根据用户提交数据查询用户信息
$sql = "select id,name,pass,reg_time from blog_admin where email = ?";
$stmt = $this->pdo->prepare($sql);
$stmt->execute([$email]);
$userData = $stmt->fetch(\PDO::FETCH_ASSOC);
//没有对应邮箱
if ( empty($userData) ) {
echo '登录失败1';
echo '';
exit;
}
//检查用户最近30分钟密码错误次数
$res = $this->checkPassWrongTime($userData['id']);
//错误次数超过限制次数
if ( $res === false ) {
echo '你刚刚输错很多次密码，为了保证账户安全，系统已经将您账号锁定30min';
echo '';
exit;
}
//判断密码是否正确
$isRightPass = password_verify($pass, $userData['pass']);
//登录成功
if ( $isRightPass ) {
echo '登录成功';
exit;
} else {
//记录密码错误次数
$this->recordPassWrongTime($userData['id']);
echo '登录失败2';
echo '';
exit;
}
}
//记录密码输出信息
protected function recordPassWrongTime($uid)
{
//ip2long()函数可以将IP地址转换成数字
$ip = ip2long( $_SERVER['REMOTE_ADDR'] );
$time = date('Y-m-d H:i:s');
$sql = "insert into blog_admin_info(uid,ipaddr,logintime,pass_wrong_time_status) values($uid,$ip,'{$time}',2)";
$stmt = $this->pdo->prepare($sql);
$stmt->execute();
}
/**
* 检查用户最近$min分钟密码错误次数
* $uid 用户ID
* $min 锁定时间
* $wTIme 错误次数
* @return 错误次数超过返回false,其他返回错误次数，提示用户
*/
protected function checkPassWrongTime($uid, $min=30, $wTime=3)
{
if ( empty($uid) ) {
throw new \Exception("第一个参数不能为空");
}
$time = time();
$prevTime = time() - $min*60;
//用户所在登录ip
$ip = ip2long( $_SERVER['REMOTE_ADDR'] );
//pass_wrong_time_status代表用户输出了密码
$sql = "select * from user_login_info where uid={$uid} and pass_wrong_time_status=2 and UNIX_TIMESTAMP(logintime) between $prevTime and $time and ipaddr=$ip";
$stmt = $this->pdo->prepare($sql);
$stmt->execute();
$data = $stmt->fetchAll(\PDO::FETCH_ASSOC);
//统计错误次数
$wrongTime = count($data);
//判断错误次数是否超过限制次数
if ( $wrongTime > $wTime ) {
return false;
}
return $wrongTime;
}
public function __call($methodName, $params)
{
echo '访问的页面不存在','返回登录页';
}
}
$a = @$_GET['a']?$_GET['a']:'loginPage';
$login = new Login();
$login->$a();
