286 行
7.3 KiB
PHP
286 行
7.3 KiB
PHP
<?php
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP
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*
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* This content is released under the MIT License (MIT)
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*
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* Copyright (c) 2014 - 2019, British Columbia Institute of Technology
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @package CodeIgniter
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* @author EllisLab Dev Team
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* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
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* @copyright Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
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* @license https://opensource.org/licenses/MIT MIT License
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* @link https://codeigniter.com
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* @since Version 1.0.0
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* @filesource
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*/
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defined('BASEPATH') OR exit('No direct script access allowed');
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/**
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* Exceptions Class
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*
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* @package CodeIgniter
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* @subpackage Libraries
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* @category Exceptions
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* @author EllisLab Dev Team
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* @link https://codeigniter.com/userguide3/libraries/exceptions.html
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*/
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class CI_Exceptions {
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/**
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* Nesting level of the output buffering mechanism
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*
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* @var int
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*/
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public $ob_level;
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/**
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* List of available error levels
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*
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* @var array
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*/
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public $levels = array(
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E_ERROR => 'Error',
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E_WARNING => 'Warning',
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E_PARSE => 'Parsing Error',
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E_NOTICE => 'Notice',
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E_CORE_ERROR => 'Core Error',
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E_CORE_WARNING => 'Core Warning',
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E_COMPILE_ERROR => 'Compile Error',
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E_COMPILE_WARNING => 'Compile Warning',
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E_USER_ERROR => 'User Error',
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E_USER_WARNING => 'User Warning',
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E_USER_NOTICE => 'User Notice',
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E_STRICT => 'Runtime Notice'
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);
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/**
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* Class constructor
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*
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* @return void
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*/
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public function __construct()
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{
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$this->ob_level = ob_get_level();
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// Note: Do not log messages from this constructor.
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}
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// --------------------------------------------------------------------
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/**
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* Exception Logger
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*
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* Logs PHP generated error messages
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*
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* @param int $severity Log level
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* @param string $message Error message
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* @param string $filepath File path
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* @param int $line Line number
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* @return void
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*/
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public function log_exception($severity, $message, $filepath, $line)
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{
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$severity = isset($this->levels[$severity]) ? $this->levels[$severity] : $severity;
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log_message('error', 'Severity: '.$severity.' --> '.$message.' '.$filepath.' '.$line);
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}
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// --------------------------------------------------------------------
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/**
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* 404 Error Handler
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*
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* @uses CI_Exceptions::show_error()
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*
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* @param string $page Page URI
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* @param bool $log_error Whether to log the error
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* @return void
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*/
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public function show_404($page = '', $log_error = TRUE)
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{
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if (is_cli())
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{
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$heading = 'Not Found';
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$message = 'The controller/method pair you requested was not found.';
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}
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else
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{
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$heading = '404 Page Not Found';
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$message = 'The page you requested was not found.';
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}
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// By default we log this, but allow a dev to skip it
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if ($log_error)
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{
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log_message('error', $heading.': '.$page);
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}
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echo $this->show_error($heading, $message, 'error_404', 404);
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exit(4); // EXIT_UNKNOWN_FILE
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}
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// --------------------------------------------------------------------
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/**
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* General Error Page
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*
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* Takes an error message as input (either as a string or an array)
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* and displays it using the specified template.
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*
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* @param string $heading Page heading
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* @param string|string[] $message Error message
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* @param string $template Template name
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* @param int $status_code (default: 500)
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*
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* @return string Error page output
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*/
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public function show_error($heading, $message, $template = 'error_general', $status_code = 500)
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{
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$templates_path = config_item('error_views_path');
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if (empty($templates_path))
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{
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$templates_path = VIEWPATH.'errors'.DIRECTORY_SEPARATOR;
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}
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else
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{
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$templates_path = rtrim($templates_path, '/\\').DIRECTORY_SEPARATOR;
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}
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if (is_cli())
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{
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$message = "\t".(is_array($message) ? implode("\n\t", $message) : $message);
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$template = 'cli'.DIRECTORY_SEPARATOR.$template;
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}
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else
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{
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set_status_header($status_code);
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$message = '<p>'.(is_array($message) ? implode('</p><p>', $message) : $message).'</p>';
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$template = 'html'.DIRECTORY_SEPARATOR.$template;
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}
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if (ob_get_level() > $this->ob_level + 1)
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{
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ob_end_flush();
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}
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ob_start();
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include($templates_path.$template.'.php');
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$buffer = ob_get_contents();
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ob_end_clean();
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return $buffer;
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}
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// --------------------------------------------------------------------
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public function show_exception($exception)
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{
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$templates_path = config_item('error_views_path');
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if (empty($templates_path))
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{
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$templates_path = VIEWPATH.'errors'.DIRECTORY_SEPARATOR;
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}
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else
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{
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$templates_path = rtrim($templates_path, '/\\').DIRECTORY_SEPARATOR;
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}
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$message = $exception->getMessage();
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if (empty($message))
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{
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$message = '(null)';
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}
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if (is_cli())
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{
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$templates_path .= 'cli'.DIRECTORY_SEPARATOR;
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}
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else
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{
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$templates_path .= 'html'.DIRECTORY_SEPARATOR;
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}
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if (ob_get_level() > $this->ob_level + 1)
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{
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ob_end_flush();
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}
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ob_start();
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include($templates_path.'error_exception.php');
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$buffer = ob_get_contents();
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ob_end_clean();
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echo $buffer;
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}
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// --------------------------------------------------------------------
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/**
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* Native PHP error handler
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*
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* @param int $severity Error level
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* @param string $message Error message
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* @param string $filepath File path
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* @param int $line Line number
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* @return void
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*/
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public function show_php_error($severity, $message, $filepath, $line)
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{
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$templates_path = config_item('error_views_path');
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if (empty($templates_path))
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{
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$templates_path = VIEWPATH.'errors'.DIRECTORY_SEPARATOR;
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}
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else
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{
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$templates_path = rtrim($templates_path, '/\\').DIRECTORY_SEPARATOR;
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}
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$severity = isset($this->levels[$severity]) ? $this->levels[$severity] : $severity;
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// For safety reasons we don't show the full file path in non-CLI requests
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if ( ! is_cli())
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{
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$filepath = str_replace('\\', '/', $filepath);
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if (FALSE !== strpos($filepath, '/'))
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{
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$x = explode('/', $filepath);
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$filepath = $x[count($x)-2].'/'.end($x);
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}
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$template = 'html'.DIRECTORY_SEPARATOR.'error_php';
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}
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else
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{
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$template = 'cli'.DIRECTORY_SEPARATOR.'error_php';
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}
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if (ob_get_level() > $this->ob_level + 1)
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{
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ob_end_flush();
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}
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ob_start();
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include($templates_path.$template.'.php');
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$buffer = ob_get_contents();
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ob_end_clean();
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echo $buffer;
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}
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}
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