laravel – 请求/autodiscover/autodiscover.xml导致TokenMismat

为了更好地处理TokenMismatchException类型的异常(当会话生存期到期然后用户提交表单时会抛出它),我更改了异常处理程序的render()方法,如下所示：

/**
 * Render an exception into an HTTP response.
 *
 * @param  IlluminateHttpRequest  $request
 * @param  Exception  $e
 * @return IlluminateHttpResponse
 */
public function render($request,Exception $e)
{
    if ($e instanceof IlluminateSessionTokenMismatchException){

        return redirect($request->fullUrl())->with('error',"Sorry your session has expired please resubmit your request.");
    }

    return parent::render($request,$e);
}

这对于正常请求工作正常,而不是抛出异常,它设置会话闪存消息并重定向回请求的页面.但是,我注意到以下请求仍然抛出了许多这些异常：

/autodiscover/autodiscover.xml

我知道上面的内容与Exchange有关,所以它可能不是恶意的.

我很困惑的是a)为什么这个unrouted url触发了Laravel的CSRF保护,以及b)为什么我的更新处理程序没有捕获异常？

我已经尝试为此网址添加路由,并手动抛出404,但这没有帮助.

我该怎么做才能防止抛出这些异常？

编辑 – 按要求堆栈跟踪：

2015-10-26 11:44:38] production.ERROR: exception 'IlluminateSessionTokenMismatchException' in /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php:53
Stack trace:
#0 [internal function]: IlluminateFoundationHttpMiddlewareVerifyCsrfToken->handle(Object(IlluminateHttpRequest),Object(Closure))
#1 /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(124): call_user_func_array(Array,Array)
#2 /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(54): IlluminatePipelinePipeline->IlluminatePipeline{closure}(Object(IlluminateHttpRequest))
#3 [internal function]: IlluminateViewMiddlewareShareErrorsFromSession->handle(Object(IlluminateHttpRequest),Object(Closure))
#4 /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(124): call_user_func_array(Array,Array)
#5 /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(62): IlluminatePipelinePipeline->IlluminatePipeline{closure}(Object(IlluminateHttpRequest))
#6 [internal function]: IlluminateSessionMiddlewareStartSession->handle(Object(IlluminateHttpRequest),Object(Closure))
#7 /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(124): call_user_func_array(Array,Array)
#8 /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): IlluminatePipelinePipeline->IlluminatePipeline{closure}(Object(IlluminateHttpRequest))
#9 [internal function]: IlluminateCookieMiddlewareAddQueuedCookiesToResponse->handle(Object(IlluminateHttpRequest),Object(Closure))
#10 /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(124): call_user_func_array(Array,Array)
#11 /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(59): IlluminatePipelinePipeline->IlluminatePipeline{closure}(Object(IlluminateHttpRequest))
#12 [internal function]: IlluminateCookieMiddlewareEncryptCookies->handle(Object(IlluminateHttpRequest),Object(Closure))
#13 /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(124): call_user_func_array(Array,Array)
#14 /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/CheckForMaintenanceMode.php(42): IlluminatePipelinePipeline->IlluminatePipeline{closure}(Object(IlluminateHttpRequest))
#15 [internal function]: IlluminateFoundationHttpMiddlewareCheckForMaintenanceMode->handle(Object(IlluminateHttpRequest),Object(Closure))
#16 /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(124): call_user_func_array(Array,Array)
#17 [internal function]: IlluminatePipelinePipeline->IlluminatePipeline{closure}(Object(IlluminateHttpRequest))
#18 /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): call_user_func(Object(Closure),Object(IlluminateHttpRequest))
#19 /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(122): IlluminatePipelinePipeline->then(Object(Closure))
#20 /var/www/vhosts/sitedomain.com/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(87): IlluminateFoundationHttpKernel->sendRequestThroughRouter(Object(IlluminateHttpRequest))
#21 /var/www/vhosts/sitedomain.com/public_html/index.php(53): IlluminateFoundationHttpKernel->handle(Object(IlluminateHttpRequest))
#22 {main}