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<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');

/**

 * CodeIgniter

 *

 * An open source application development framework for PHP 5.1.6 or newer

 *

 * @package		CodeIgniter

 * @author		ExpressionEngine Dev Team

 * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.

 * @license		http://codeigniter.com/user_guide/license.html

 * @link		http://codeigniter.com

 * @since		Version 1.0

 * @filesource

 */

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

/**

 * Exceptions Class

 *

 * @package		CodeIgniter

 * @subpackage	Libraries

 * @category	Exceptions

 * @author		ExpressionEngine Dev Team

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

 */

class CI_Exceptions {

	var $action;

	var $severity;

	var $message;

	var $filename;

	var $line;

	/**

	 * Nesting level of the output buffering mechanism

	 *

	 * @var int

	 * @access public

	 */

	var $ob_level;

	/**

	 * List if available error levels

	 *

	 * @var array

	 * @access public

	 */

	var $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'

					);

	/**

	 * Constructor

	 */

	public function __construct()

	{

		$this->ob_level = ob_get_level();

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

	}

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

	/**

	 * Exception Logger

	 *

	 * This function logs PHP generated error messages

	 *

	 * @access	private

	 * @param	string	the error severity

	 * @param	string	the error string

	 * @param	string	the error filepath

	 * @param	string	the error line number

	 * @return	string

	 */

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

	{

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

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

	}

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

	/**

	 * 404 Page Not Found Handler

	 *

	 * @access	private

	 * @param	string	the page

	 * @param 	bool	log error yes/no

	 * @return	string

	 */

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

	{

		$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', '404 Page Not Found --> '.$page);

		}

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

		exit;

	}

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

	/**

	 * General Error Page

	 *

	 * This function takes an error message as input

	 * (either as a string or an array) and displays

	 * it using the specified template.

	 *

	 * @access	private

	 * @param	string	the heading

	 * @param	string	the message

	 * @param	string	the template name

	 * @param 	int		the status code

	 * @return	string

	 */

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

	{

		set_status_header($status_code);

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

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

		{

			ob_end_flush();

		}

		ob_start();

		include(APPPATH.'errors/'.$template.'.php');

		$buffer = ob_get_contents();

		ob_end_clean();

		return $buffer;

	}

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

	/**

	 * Native PHP error handler

	 *

	 * @access	private

	 * @param	string	the error severity

	 * @param	string	the error string

	 * @param	string	the error filepath

	 * @param	string	the error line number

	 * @return	string

	 */

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

	{

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

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

		// For safety reasons we do not show the full file path

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

		{

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

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

		}

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

		{

			ob_end_flush();

		}

		ob_start();

		include(APPPATH.'errors/error_php.php');

		$buffer = ob_get_contents();

		ob_end_clean();

		echo $buffer;

	}

}

// END Exceptions Class

/* End of file Exceptions.php */

/* Location: ./system/core/Exceptions.php */