登录时令牌不匹配异常（Laravel）
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Token Mismatch Exception on Login (Laravel)
提问by Sainath Krishnan
I followed thistutorial on creating a registration and login page using Laravel.
我按照本教程使用 Laravel 创建注册和登录页面。
Everything works smoothly, the only issue is that I am unable to Login. If I provide the wrong username/password, it correctly gives me an error message. But if I use the right credentials, I get the following error -
一切顺利，唯一的问题是我无法登录。如果我提供了错误的用户名/密码，它会正确地给我一条错误消息。但是，如果我使用正确的凭据，则会出现以下错误 -
Illuminate \ Session \ TokenMismatchException
This is my (default) csrf function -
这是我的（默认）csrf 函数 -
Route::filter('csrf', function()
{
if (Session::token() != Input::get('_token'))
{
throw new Illuminate\Session\TokenMismatchException;
}
});
This is the form action -
这是表单操作 -
{{ Form::open(array('url'=>'signin', 'class'=>'form-signin')) }}
And this is the relevant portion of my UsersController
这是我的 UsersController 的相关部分
public function __construct() {
$this->beforeFilter('csrf', array('on'=>'post'));
$this->beforeFilter('auth', array('only'=>array('getDashboard')));
}
public function postSignin() {
if (Auth::attempt(array('email'=>Input::get('email'), 'password'=>Input::get('password')))) {
return Redirect::to('dashboard')->with('message', 'You are now logged in!');
} else {
return Redirect::to('login')
->with('message', 'Your username/password combination was incorrect')
->withInput();
}
}
public function getDashboard() {
$this->layout->content = View::make('users.dashboard');
}
回答by tacone
Laravel makes a quite esoteric use of sessions, and when the user cookie and the user salt in stored in the database disalign for some reason (for example, when you re-seed your user table), you get a Token Mismatch Exception without further explanation.
Laravel 对会话的使用非常深奥，当存储在数据库中的用户 cookie 和用户盐由于某种原因（例如，当您重新播种用户表时）不一致时，您会得到一个令牌不匹配异常，无需进一步解释.
If that's the case, just delete your cookies.
如果是这种情况，只需删除您的 cookie。
回答by Radu Pacurar
I had this problem on login also. From time to time this exception occurred so I stop and tried to reproduce it. I succeed by doing this:
我在登录时也遇到了这个问题。不时发生此异常，所以我停下来尝试重现它。我这样做成功了：
First I load the login page.
首先我加载登录页面。
Then I deleted the cookies.
然后我删除了cookies。
Then, without reloading the login page, I entered username and password and tried to login.
然后，没有重新加载登录页面，我输入用户名和密码并尝试登录。
Because session was deleted (when I deleted the cookies), it was normal that this code was not going to pass and it will throw the TokenMismatchException.
因为 session 被删除了（当我删除 cookie 时），这段代码不会通过并且会抛出 TokenMismatchException 是正常的。
Route::filter('csrf', function() {
if ( Session::getToken() != Input::get('_token')) {
throw new Illuminate\Session\TokenMismatchException;
}
});
So, what I've done to solve my problem was to add a redirect to login page with a message to inform the user that the session might expired.
因此，我为解决我的问题所做的工作是添加一个重定向到登录页面的消息，以通知用户会话可能已过期。
Route::filter('csrf', function() {
if ( Session::getToken() != Input::get('_token')) {
return Redirect::to('/admin/login')->with('warning', 'Your session has expired. Please try logging in again.');
}
});
Thus, after page reloading, a new session is created and the problem is solved.
因此，在页面重新加载后，创建了一个新会话并解决了问题。
回答by creed06
/config/session.php set that info 'expire_on_close' => true, save and load again ur site you wont get anymore the issue with Token Mismatch Exception on Login
/config/session.php 设置该信息 'expire_on_close' => true，再次保存并加载您的站点，您将不会再遇到登录时令牌不匹配异常的问题
回答by Ph?m Ti?n Thành
Check your route:list to see if Login is protected by web middleware. In my case, I made mistake by adding web middileware to login route where it should be guest middleware.
检查您的 route:list 以查看 Login 是否受 Web 中间件保护。就我而言，我通过将 web 中间件添加到应该是访客中间件的登录路由而犯了错误。
回答by Vítor ávila
I had this problem, it was caused by no free disk space.
我遇到了这个问题，它是由没有可用磁盘空间引起的。
Get some space and try to login again.
获得一些空间并尝试再次登录。
回答by mike.bronner
I added the following code to app\Exceptions\Handler.phpto help clarify the error for the end-user, in addition to setting session to expire on close, as mentioned in this thread.
我添加了以下代码以app\Exceptions\Handler.php帮助最终用户澄清错误，此外还设置会话在关闭时过期，如本线程所述。
protected function prepareException(Exception $exception)
{
if ($exception instanceof TokenMismatchException) {
return new HttpException(
419,
"{$exception->getMessage()}. Please clear your browser cookies and try again.",
$exception
);
}
return parent::prepareException($exception);
}
