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<?php /** * CodeIgniter * * An open source application development framework for PHP * * This content is released under the MIT License (MIT) * * Copyright (c) 2014 - 2019, 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 - 2019, British Columbia Institute of Technology (https://bcit.ca/) * @license https://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; } }