覆盖生产的Kohana_Exception :: _ handler() - 3.3

Question

我正在使用Kohana 3.3,我在这个论坛帖子中读到.

它说为了防止向最终用户显示堆栈跟踪,我需要覆盖Kohana_Exception :: _ handler()以执行与渗透错误不同的操作.这是否意味着覆盖Kohana_Exception并添加以下功能？

public static function _handler(Exception $e)
{
    try
    {
        // Log the exception
        Kohana_Exception::log($e);

        // Generate the response
        //instead of below line:
        //$response = Kohana_Exception::response($e);
        $response = //what do I do here, return a 404 page or custom 500 page?
        return $response;
    }

    //rest of function
}

如果是这样,我该怎么回？

编辑:

bootstrap.php中

/**
 * Attach the file write to logging. Multiple writers are supported.
 */
Kohana::$log->attach(new Log_File(APPPATH.'logs'));

/**
 * Attach a file reader to config. Multiple readers are supported.
 */
Kohana::$config->attach(new Config_File);

/**
 * Attach customer error handler if we are in production
 */
if(Kohana::$environment == Kohana::PRODUCTION || Kohana::$environment == Kohana::STAGING)
{
    set_exception_handler(array('My_Exception', 'handler'));
    throw new Exception('text'); //this works, if removed however my  exception handler does not do anything
}

My_Exception.php(在classes/My/Exception.php中)

<?php   
    class My_Exception extends Kohana_Exception 
    {
        public static function handler(Exception $e)
        {
            try 
            {
                // Log the exception
                Kohana_Exception::log($e);

                // Let's try and load an error View             
                $class = get_class($e);

                if($class == 'HTTP_Exception_404')
                {
                    $view = View::factory('errors/404');
                    $view->set('error_code', 404);
                }
                else
                {
                    $view = View::factory('errors/general');
                    $view->set('error_code', $e->getCode()); // alternatively use $e->getCode()
                    $view->set('error_message', $e->getMessage()); // alternatively use $e->getMessage();
                }

                // Let's render the output and send it to the browser
                $response = $view->render();
                echo $response;
            }
            catch (Exception $e)
            {
                /**
                 * Things are going *really* badly for us, We now have no choice
                 * but to bail. Hard.
                 */
                // Clean the output buffer if one exists
                ob_get_level() AND ob_clean();

                // Set the Status code to 500, and Content-Type to text/plain.
                header('Content-Type: text/plain; charset='.Kohana::$charset, TRUE, 500);

                // This will output the Exceptiones error message
                // You may want to display something else
                echo $e->getMessage();

                exit(1);
            }
        }
    }

Answer 1

我实际上已经对这个问题进行了相当多的调查,并且从头开始重写了我的asnwer,因为我对Kohana在这方面的行为有了更全面的了解.

为了达到你想要的目标,你需要做两件事:

1. 更改默认错误View(in APPPATH/bootstrap.php):

   /**
    * Change default error View
    */
   if(Kohana::$environment == Kohana::PRODUCTION || Kohana::$environment == Kohana::STAGING)
   {
       Kohana_Exception::$error_view = 'errors/general';
   }
   

   请注意,您的模板文件必须使用与Kohana本地变量名称相同(且仅限于那些)变量名称,即:

   • $类
   • $代码
   • $消息
   • $文件
   • $线
   • $跟踪

  2.按照您在注释中链接的教程创建自定义HTTP错误页面.

通过以下步骤,您可以确保:

• 您对所有Kohana的错误页面都有自己的看法.
• 您可以为不同的HTTP错误提供自定义视图.
• 您不必覆盖Kohana的默认异常处理程序(正如本练习所证明的那样,实现起来并不简单).

我测试了上面的方法,它对我来说就像一个魅力.