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[PHP] Laravel登录失败次数限制的实现方法

开发技术 开发技术 发布于:2021-10-27 12:31 | 阅读数:269 | 评论:0

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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。
1234567namespace 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:
1234567891011121314151617public 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。
123456789101112if( 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。
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152<?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:总结
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原文链接:https://blog.p2hp.com/archives/7388

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