system/core/Exceptions.php

   1 <?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
   2 /**
   3  * CodeIgniter
   4  *
   5  * An open source application development framework for PHP 5.1.6 or newer
   6  *
   7  * @package             CodeIgniter
   8  * @author              ExpressionEngine Dev Team
   9  * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
  10  * @license             http://codeigniter.com/user_guide/license.html
  11  * @link                http://codeigniter.com
  12  * @since               Version 1.0
  13  * @filesource
  14  */
  15
  16 // ------------------------------------------------------------------------
  17
  18 /**
  19  * Exceptions Class
  20  *
  21  * @package             CodeIgniter
  22  * @subpackage  Libraries
  23  * @category    Exceptions
  24  * @author              ExpressionEngine Dev Team
  25  * @link                http://codeigniter.com/user_guide/libraries/exceptions.html
  26  */
  27 class CI_Exceptions {
  28         var $action;
  29         var $severity;
  30         var $message;
  31         var $filename;
  32         var $line;
  33         var $ob_level;
  34
  35         var $levels = array(
  36                                                 E_ERROR                         =>      'Error',
  37                                                 E_WARNING                       =>      'Warning',
  38                                                 E_PARSE                         =>      'Parsing Error',
  39                                                 E_NOTICE                        =>      'Notice',
  40                                                 E_CORE_ERROR            =>      'Core Error',
  41                                                 E_CORE_WARNING          =>      'Core Warning',
  42                                                 E_COMPILE_ERROR         =>      'Compile Error',
  43                                                 E_COMPILE_WARNING       =>      'Compile Warning',
  44                                                 E_USER_ERROR            =>      'User Error',
  45                                                 E_USER_WARNING          =>      'User Warning',
  46                                                 E_USER_NOTICE           =>      'User Notice',
  47                                                 E_STRICT                        =>      'Runtime Notice'
  48                                         );
  49
  50
  51         /**
  52          * Constructor
  53          */
  54         public function __construct()
  55         {
  56                 $this->ob_level = ob_get_level();
  57                 // Note:  Do not log messages from this constructor.
  58         }
  59
  60         // --------------------------------------------------------------------
  61
  62         /**
  63          * Exception Logger
  64          *
  65          * This function logs PHP generated error messages
  66          *
  67          * @access      private
  68          * @param       string  the error severity
  69          * @param       string  the error string
  70          * @param       string  the error filepath
  71          * @param       string  the error line number
  72          * @return      string
  73          */
  74         function log_exception($severity, $message, $filepath, $line)
  75         {
  76                 $severity = ( ! isset($this->levels[$severity])) ? $severity : $this->levels[$severity];
  77
  78                 log_message('error', 'Severity: '.$severity.'  --> '.$message. ' '.$filepath.' '.$line, TRUE);
  79         }
  80
  81         // --------------------------------------------------------------------
  82
  83         /**
  84          * 404 Page Not Found Handler
  85          *
  86          * @access      private
  87          * @param       string
  88          * @return      string
  89          */
  90         function show_404($page = '', $log_error = TRUE)
  91         {
  92                 $heading = "404 Page Not Found";
  93                 $message = "The page you requested was not found.";
  94
  95                 // By default we log this, but allow a dev to skip it
  96                 if ($log_error)
  97                 {
  98                         log_message('error', '404 Page Not Found --> '.$page);
  99                 }
 100
 101                 echo $this->show_error($heading, $message, 'error_404', 404);
 102                 exit;
 103         }
 104
 105         // --------------------------------------------------------------------
 106
 107         /**
 108          * General Error Page
 109          *
 110          * This function takes an error message as input
 111          * (either as a string or an array) and displays
 112          * it using the specified template.
 113          *
 114          * @access      private
 115          * @param       string  the heading
 116          * @param       string  the message
 117          * @param       string  the template name
 118          * @return      string
 119          */
 120         function show_error($heading, $message, $template = 'error_general', $status_code = 500)
 121         {
 122                 set_status_header($status_code);
 123
 124                 $message = '<p>'.implode('</p><p>', ( ! is_array($message)) ? array($message) : $message).'</p>';
 125
 126                 if (ob_get_level() > $this->ob_level + 1)
 127                 {
 128                         ob_end_flush();
 129                 }
 130                 ob_start();
 131                 include(APPPATH.'errors/'.$template.EXT);
 132                 $buffer = ob_get_contents();
 133                 ob_end_clean();
 134                 return $buffer;
 135         }
 136
 137         // --------------------------------------------------------------------
 138
 139         /**
 140          * Native PHP error handler
 141          *
 142          * @access      private
 143          * @param       string  the error severity
 144          * @param       string  the error string
 145          * @param       string  the error filepath
 146          * @param       string  the error line number
 147          * @return      string
 148          */
 149         function show_php_error($severity, $message, $filepath, $line)
 150         {
 151                 $severity = ( ! isset($this->levels[$severity])) ? $severity : $this->levels[$severity];
 152
 153                 $filepath = str_replace("\\", "/", $filepath);
 154
 155                 // For safety reasons we do not show the full file path
 156                 if (FALSE !== strpos($filepath, '/'))
 157                 {
 158                         $x = explode('/', $filepath);
 159                         $filepath = $x[count($x)-2].'/'.end($x);
 160                 }
 161
 162                 if (ob_get_level() > $this->ob_level + 1)
 163                 {
 164                         ob_end_flush();
 165                 }
 166                 ob_start();
 167                 include(APPPATH.'errors/error_php'.EXT);
 168                 $buffer = ob_get_contents();
 169                 ob_end_clean();
 170                 echo $buffer;
 171         }
 172
 173
 174 }
 175 // END Exceptions Class
 176
 177 /* End of file Exceptions.php */
 178 /* Location: ./system/core/Exceptions.php */