Laravel catch TokenMismatchException
You can handle TokenMismatchException Exception in App\Exceptions\Handler.php
<?php namespace App\Exceptions;
use Exception;
use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
use Illuminate\Session\TokenMismatchException;
class Handler extends ExceptionHandler {
/**
* A list of the exception types that should not be reported.
*
* @var array
*/
protected $dontReport = [
'Symfony\Component\HttpKernel\Exception\HttpException'
];
/**
* Report or log an exception.
*
* This is a great spot to send exceptions to Sentry, Bugsnag, etc.
*
* @param \Exception $e
* @return void
*/
public function report(Exception $e)
{
return parent::report($e);
}
/**
* Render an exception into an HTTP response.
*
* @param \Illuminate\Http\Request $request
* @param \Exception $e
* @return \Illuminate\Http\Response
*/
public function render($request, Exception $e)
{
if ($e instanceof TokenMismatchException){
// Redirect to a form. Here is an example of how I handle mine
return redirect($request->fullUrl())->with('csrf_error',"Oops! Seems you couldn't submit form for a long time. Please try again.");
}
return parent::render($request, $e);
}
}
A Better Laravel 5 Solution
in App\Exceptions\Handler.php
Return the user to the form with a new valid CSRF token, so they can just resubmit the form without filling the form again.
public function render($request, Exception $e)
{
if($e instanceof \Illuminate\Session\TokenMismatchException){
return redirect()
->back()
->withInput($request->except('_token'))
->withMessage('Your explanation message depending on how much you want to dumb it down, lol!');
}
return parent::render($request, $e);
}
I also really like this idea:
https://github.com/GeneaLabs/laravel-caffeine
Instead of trying to catch the exception just redirect the user back to the same page and make him/her repeat the action again.
Use this code in the App\Http\Middleware\VerifyCsrfToken.php
<?php
namespace App\Http\Middleware;
use Closure;
use Redirect;
use Illuminate\Foundation\Http\Middleware\VerifyCsrfToken as BaseVerifier;
class VerifyCsrfToken extends BaseVerifier
{
/**
* The URIs that should be excluded from CSRF verification.
*
* @var array
*/
protected $except = [
//
];
public function handle( $request, Closure $next )
{
if (
$this->isReading($request) ||
$this->runningUnitTests() ||
$this->shouldPassThrough($request) ||
$this->tokensMatch($request)
) {
return $this->addCookieToResponse($request, $next($request));
}
// redirect the user back to the last page and show error
return Redirect::back()->withError('Sorry, we could not verify your request. Please try again.');
}
}
Laravel 5.2: Modify App\Exceptions\Handler.php like this:
<?php
namespace App\Exceptions;
use Exception;
use Illuminate\Validation\ValidationException;
use Illuminate\Auth\Access\AuthorizationException;
use Illuminate\Database\Eloquent\ModelNotFoundException;
use Symfony\Component\HttpKernel\Exception\HttpException;
use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
use Illuminate\Session\TokenMismatchException;
class Handler extends ExceptionHandler
{
/**
* A list of the exception types that should not be reported.
*
* @var array
*/
protected $dontReport = [
AuthorizationException::class,
HttpException::class,
ModelNotFoundException::class,
ValidationException::class,
];
/**
* Report or log an exception.
*
* This is a great spot to send exceptions to Sentry, Bugsnag, etc.
*
* @param \Exception $e
* @return void
*/
public function report(Exception $e)
{
parent::report($e);
}
/**
* Render an exception into an HTTP response.
*
* @param \Illuminate\Http\Request $request
* @param \Exception $e
* @return \Illuminate\Http\Response
*/
public function render($request, Exception $e)
{
if ($e instanceof TokenMismatchException) {
abort(400); /* bad request */
}
return parent::render($request, $e);
}
}
In AJAX requests you can respond to the client using abort() function and then handle the response in client side using AJAX jqXHR.status very easily, for example by showing a message and refreshing the page. Don't forget to catch the HTML status code in jQuery ajaxComplete event:
$(document).ajaxComplete(function(event, xhr, settings) {
switch (xhr.status) {
case 400:
status_write('Bad Response!!!', 'error');
location.reload();
}
}