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Slim/Middleware/PrettyExceptions.php 4.04 KB
219b8036   luigser   DEEP
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  <?php
  /**
   * Slim - a micro PHP 5 framework
   *
   * @author      Josh Lockhart <info@slimframework.com>
   * @copyright   2011 Josh Lockhart
   * @link        http://www.slimframework.com
   * @license     http://www.slimframework.com/license
   * @version     2.6.1
   * @package     Slim
   *
   * MIT LICENSE
   *
   * Permission is hereby granted, free of charge, to any person obtaining
   * a copy of this software and associated documentation files (the
   * "Software"), to deal in the Software without restriction, including
   * without limitation the rights to use, copy, modify, merge, publish,
   * distribute, sublicense, and/or sell copies of the Software, and to
   * permit persons to whom the Software is furnished to do so, subject to
   * the following conditions:
   *
   * The above copyright notice and this permission notice shall be
   * included in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
   * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
   * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
   * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   */
  namespace Slim\Middleware;
  
  /**
   * Pretty Exceptions
   *
   * This middleware catches any Exception thrown by the surrounded
   * application and displays a developer-friendly diagnostic screen.
   *
   * @package Slim
   * @author  Josh Lockhart
   * @since   1.0.0
   */
  class PrettyExceptions extends \Slim\Middleware
  {
      /**
       * @var array
       */
      protected $settings;
  
      /**
       * Constructor
       * @param array $settings
       */
      public function __construct($settings = array())
      {
          $this->settings = $settings;
      }
  
      /**
       * Call
       */
      public function call()
      {
          try {
              $this->next->call();
          } catch (\Exception $e) {
              $log = $this->app->getLog(); // Force Slim to append log to env if not already
              $env = $this->app->environment();
              $env['slim.log'] = $log;
              $env['slim.log']->error($e);
              $this->app->contentType('text/html');
              $this->app->response()->status(500);
              $this->app->response()->body($this->renderBody($env, $e));
          }
      }
  
      /**
       * Render response body
       * @param  array      $env
       * @param  \Exception $exception
       * @return string
       */
      protected function renderBody(&$env, $exception)
      {
          $title = 'Slim Application Error';
          $code = $exception->getCode();
          $message = htmlspecialchars($exception->getMessage());
          $file = $exception->getFile();
          $line = $exception->getLine();
          $trace = str_replace(array('#', "\n"), array('<div>#', '</div>'), htmlspecialchars($exception->getTraceAsString()));
          $html = sprintf('<h1>%s</h1>', $title);
          $html .= '<p>The application could not run because of the following error:</p>';
          $html .= '<h2>Details</h2>';
          $html .= sprintf('<div><strong>Type:</strong> %s</div>', get_class($exception));
          if ($code) {
              $html .= sprintf('<div><strong>Code:</strong> %s</div>', $code);
          }
          if ($message) {
              $html .= sprintf('<div><strong>Message:</strong> %s</div>', $message);
          }
          if ($file) {
              $html .= sprintf('<div><strong>File:</strong> %s</div>', $file);
          }
          if ($line) {
              $html .= sprintf('<div><strong>Line:</strong> %s</div>', $line);
          }
          if ($trace) {
              $html .= '<h2>Trace</h2>';
              $html .= sprintf('<pre>%s</pre>', $trace);
          }
  
          return sprintf("<html><head><title>%s</title><style>body{margin:0;padding:30px;font:12px/1.5 Helvetica,Arial,Verdana,sans-serif;}h1{margin:0;font-size:48px;font-weight:normal;line-height:48px;}strong{display:inline-block;width:65px;}</style></head><body>%s</body></html>", $title, $html);
      }
  }