Subversion-Projekte lars-tiefland.ci

<?php

/**

 * CodeIgniter

 *

 * An open source application development framework for PHP

 *

 * This content is released under the MIT License (MIT)

 *

 * Copyright (c) 2014 - 2017, British Columbia Institute of Technology

 *

 * 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.

 *

 * @package	CodeIgniter

 * @author	EllisLab Dev Team

 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)

 * @copyright	Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/)

 * @license	http://opensource.org/licenses/MIT	MIT License

 * @link	https://codeigniter.com

 * @since	Version 1.0.0

 * @filesource

 */

defined('BASEPATH') OR exit('No direct script access allowed');

/**

 * Exceptions Class

 *

 * @package		CodeIgniter

 * @subpackage	Libraries

 * @category	Exceptions

 * @author		EllisLab Dev Team

 * @link		https://codeigniter.com/user_guide/libraries/exceptions.html

 */

class CI_Exceptions {

	/**

	 * Nesting level of the output buffering mechanism

	 *

	 * @var	int

	 */

	public $ob_level;

	/**

	 * List of available error levels

	 *

	 * @var	array

	 */

	public $levels = array(

		E_ERROR			=>	'Error',

		E_WARNING		=>	'Warning',

		E_PARSE			=>	'Parsing Error',

		E_NOTICE		=>	'Notice',

		E_CORE_ERROR		=>	'Core Error',

		E_CORE_WARNING		=>	'Core Warning',

		E_COMPILE_ERROR		=>	'Compile Error',

		E_COMPILE_WARNING	=>	'Compile Warning',

		E_USER_ERROR		=>	'User Error',

		E_USER_WARNING		=>	'User Warning',

		E_USER_NOTICE		=>	'User Notice',

		E_STRICT		=>	'Runtime Notice'

	);

	/**

	 * Class constructor

	 *

	 * @return	void

	 */

	public function __construct()

	{

		$this->ob_level = ob_get_level();

		// Note: Do not log messages from this constructor.

	}

	// --------------------------------------------------------------------

	/**

	 * Exception Logger

	 *

	 * Logs PHP generated error messages

	 *

	 * @param	int	$severity	Log level

	 * @param	string	$message	Error message

	 * @param	string	$filepath	File path

	 * @param	int	$line		Line number

	 * @return	void

	 */

	public function log_exception($severity, $message, $filepath, $line)

	{

		$severity = isset($this->levels[$severity]) ? $this->levels[$severity] : $severity;

		log_message('error', 'Severity: '.$severity.' --> '.$message.' '.$filepath.' '.$line);

	}

	// --------------------------------------------------------------------

	/**

	 * 404 Error Handler

	 *

	 * @uses	CI_Exceptions::show_error()

	 *

	 * @param	string	$page		Page URI

	 * @param 	bool	$log_error	Whether to log the error

	 * @return	void

	 */

	public function show_404($page = '', $log_error = TRUE)

	{

		if (is_cli())

		{

			$heading = 'Not Found';

			$message = 'The controller/method pair you requested was not found.';

		}

		else

		{

			$heading = '404 Page Not Found';

			$message = 'The page you requested was not found.';

		}

		// By default we log this, but allow a dev to skip it

		if ($log_error)

		{

			log_message('error', $heading.': '.$page);

		}

		echo $this->show_error($heading, $message, 'error_404', 404);

		exit(4); // EXIT_UNKNOWN_FILE

	}

	// --------------------------------------------------------------------

	/**

	 * General Error Page

	 *

	 * Takes an error message as input (either as a string or an array)

	 * and displays it using the specified template.

	 *

	 * @param	string		$heading	Page heading

	 * @param	string|string[]	$message	Error message

	 * @param	string		$template	Template name

	 * @param 	int		$status_code	(default: 500)

	 *

	 * @return	string	Error page output

	 */

	public function show_error($heading, $message, $template = 'error_general', $status_code = 500)

	{

		$templates_path = config_item('error_views_path');

		if (empty($templates_path))

		{

			$templates_path = VIEWPATH.'errors'.DIRECTORY_SEPARATOR;

		}

		if (is_cli())

		{

			$message = "\t".(is_array($message) ? implode("\n\t", $message) : $message);

			$template = 'cli'.DIRECTORY_SEPARATOR.$template;

		}

		else

		{

			set_status_header($status_code);

			$message = '<p>'.(is_array($message) ? implode('</p><p>', $message) : $message).'</p>';

			$template = 'html'.DIRECTORY_SEPARATOR.$template;

		}

		if (ob_get_level() > $this->ob_level + 1)

		{

			ob_end_flush();

		}

		ob_start();

		include($templates_path.$template.'.php');

		$buffer = ob_get_contents();

		ob_end_clean();

		return $buffer;

	}

	// --------------------------------------------------------------------

	public function show_exception($exception)

	{

		$templates_path = config_item('error_views_path');

		if (empty($templates_path))

		{

			$templates_path = VIEWPATH.'errors'.DIRECTORY_SEPARATOR;

		}

		$message = $exception->getMessage();

		if (empty($message))

		{

			$message = '(null)';

		}

		if (is_cli())

		{

			$templates_path .= 'cli'.DIRECTORY_SEPARATOR;

		}

		else

		{

			$templates_path .= 'html'.DIRECTORY_SEPARATOR;

		}

		if (ob_get_level() > $this->ob_level + 1)

		{

			ob_end_flush();

		}

		ob_start();

		include($templates_path.'error_exception.php');

		$buffer = ob_get_contents();

		ob_end_clean();

		echo $buffer;

	}

	// --------------------------------------------------------------------

	/**

	 * Native PHP error handler

	 *

	 * @param	int	$severity	Error level

	 * @param	string	$message	Error message

	 * @param	string	$filepath	File path

	 * @param	int	$line		Line number

	 * @return	void

	 */

	public function show_php_error($severity, $message, $filepath, $line)

	{

		$templates_path = config_item('error_views_path');

		if (empty($templates_path))

		{

			$templates_path = VIEWPATH.'errors'.DIRECTORY_SEPARATOR;

		}

		$severity = isset($this->levels[$severity]) ? $this->levels[$severity] : $severity;

		// For safety reasons we don't show the full file path in non-CLI requests

		if ( ! is_cli())

		{

			$filepath = str_replace('\\', '/', $filepath);

			if (FALSE !== strpos($filepath, '/'))

			{

				$x = explode('/', $filepath);

				$filepath = $x[count($x)-2].'/'.end($x);

			}

			$template = 'html'.DIRECTORY_SEPARATOR.'error_php';

		}

		else

		{

			$template = 'cli'.DIRECTORY_SEPARATOR.'error_php';

		}

		if (ob_get_level() > $this->ob_level + 1)

		{

			ob_end_flush();

		}

		ob_start();

		include($templates_path.$template.'.php');

		$buffer = ob_get_contents();

		ob_end_clean();

		echo $buffer;

	}

}