Laravel登录失败次数限制的实现方法

在用户身份验证的情况下，Laravel 具有内置的身份验证系统。我们可以根据要求轻松修改它。身份验证中包含的功能之一是Throttling.

为什么我们需要throttling保护？

基本上，throttling是用来保护暴力攻击的。它将在一定时间内检查登录尝试。在短登录中，throttling会计算用户或机器人尝试失败的登录尝试次数。

使用自定义登录实现限制

默认情况下，在内置身份验证控制器中实现限制。但是，如果我们需要实现它到自定义登录呢？

实现自定义登录限制非常容易。首先，我们必须将ThrottlesLogins trait包含到您的控制器中。

use Illuminate\\Foundation\\Auth\\ThrottlesLogins;

现在，将此ThrottlesLogins trait 加到控制器中。

namespace App\\Http\\Controllers;use Illuminate\\Http\\Request;use Illuminate\\Foundation\\Auth\\ThrottlesLogins;class AuthController extends Controller{use ThrottlesLogins;......

现在转到用于对用户进行身份验证的方法。在我的例子中，我使用了 login() POST 方法。并粘贴以下代码:

public function login(Request $request){// Authenticate Inputs$request->validate([\'username\' => \'required\',\'password\' => \'required|min:6|max:18\']);// If the class is using the ThrottlesLogins trait, we can automatically throttle// the login attempts for this application. We\'ll key this by the username and// the IP address of the client making these requests into this application.if (method_exists($this, \'hasTooManyLoginAttempts\') &&$this->hasTooManyLoginAttempts($request)) {$this->fireLockoutEvent($request);return $this->sendLockoutResponse($request);}.......

首先，我们验证了用户提交的输入，然后实现了hasTooManyLoginAttempts() 方法。此方法将检查用户在某个时间是否执行过一定数量的失败尝试，然后系统将通过sendLockoutResponse() 方法阻止该用户。

现在，我们必须通过incrementLoginAttempts()方法指示对ThrottlesLogins trait的失败登录尝试。

if( Auth::attempt([\'username\' => $username, \'password\' => $password]) ){// Redirect to appropriate dashboard}else {// If the login attempt was unsuccessful we will increment the number of attempts// to login and redirect the user back to the login form. Of course, when this// user surpasses their maximum number of attempts they will get locked out.$this->incrementLoginAttempts($request);return redirect()->back()->withInput($request->all())->withErrors([\'error\' => \'Please check your username / password.\']);}

您还可以通过$maxAttempts和$decayMinutes属性更改允许的最大尝试次数和限制的分钟数。在这里，您可以找到完整的代码。

<?phpnamespace App\\Http\\Controllers;use Illuminate\\Http\\Request;use Illuminate\\Foundation\\Auth\\ThrottlesLogins;class AuthController extends Controller{use ThrottlesLogins;/*** The maximum number of attempts to allow.** @return int*/protected $maxAttempts = 5;/*** The number of minutes to throttle for.** @return int*/protected $decayMinutes = 1;public function login(Request $request){// Authenticate Inputs$request->validate([\'username\' => \'required\',\'password\' => \'required|min:6|max:18\']);// If the class is using the ThrottlesLogins trait, we can automatically throttle// the login attempts for this application. We\'ll key this by the username and// the IP address of the client making these requests into this application.if (method_exists($this, \'hasTooManyLoginAttempts\') &&$this->hasTooManyLoginAttempts($request)) {$this->fireLockoutEvent($request);return $this->sendLockoutResponse($request);}$username = $request->username;$password = $request->password;if( Auth::attempt([\'username\' => $username, \'password\' => $password]) ){// Redirect to appropriate dashboard}else {// If the login attempt was unsuccessful we will increment the number of attempts// to login and redirect the user back to the login form. Of course, when this// user surpasses their maximum number of attempts they will get locked out.$this->incrementLoginAttempts($request);return redirect()->back()->withInput($request->all())->withErrors([\'error\' => \'Please check your username / password.\']);}}}Related Posts:

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