<?php /** * CodeIgniter * * An open source application development framework for PHP 5.2.4 or newer * * NOTICE OF LICENSE * * Licensed under the Open Software License version 3.0 * * This source file is subject to the Open Software License (OSL 3.0) that is * bundled with this package in the files license.txt / license.rst. It is * also available through the world wide web at this URL: * http://opensource.org/licenses/OSL-3.0 * If you did not receive a copy of the license and are unable to obtain it * through the world wide web, please send an email to * licensing@ellislab.com so we can send you a copy immediately. * * @package CodeIgniter * @author EllisLab Dev Team * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/) * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) * @link http://codeigniter.com * @since Version 1.0 * @filesource */ defined('BASEPATH') OR exit('No direct script access allowed'); /** * Logging Class * * @package CodeIgniter * @subpackage Libraries * @category Logging * @author EllisLab Dev Team * @link http://codeigniter.com/user_guide/general/errors.html */ class CI_Log { /** * Path to save log files * * @var string */ protected $_log_path; /** * File permissions * * @var int */ protected $_file_permissions = 0644; /** * Level of logging * * @var int */ protected $_threshold = 1; /** * Highest level of logging * * @var int */ protected $_threshold_max = 0; /** * Array of threshold levels to log * * @var array */ protected $_threshold_array = array(); /** * Format of timestamp for log files * * @var string */ protected $_date_fmt = 'Y-m-d H:i:s'; /** * Filename extension * * @var string */ protected $_file_ext; /** * Whether or not the logger can write to the log files * * @var bool */ protected $_enabled = TRUE; /** * Predefined logging levels * * @var array */ protected $_levels = array('ERROR' => 1, 'DEBUG' => 2, 'INFO' => 3, 'ALL' => 4); // -------------------------------------------------------------------- /** * Class constructor * * @return void */ public function __construct() { $config =& get_config(); $this->_log_path = ($config['log_path'] !== '') ? $config['log_path'] : APPPATH.'logs/'; $this->_file_ext = (isset($config['log_file_extension']) && $config['log_file_extension'] !== '') ? ltrim($config['log_file_extension'], '.') : 'php'; file_exists($this->_log_path) OR mkdir($this->_log_path, 0755, TRUE); if ( ! is_dir($this->_log_path) OR ! is_really_writable($this->_log_path)) { $this->_enabled = FALSE; } if (is_numeric($config['log_threshold'])) { $this->_threshold = (int) $config['log_threshold']; } elseif (is_array($config['log_threshold'])) { $this->_threshold = $this->_threshold_max; $this->_threshold_array = array_flip($config['log_threshold']); } if ( ! empty($config['log_date_format'])) { $this->_date_fmt = $config['log_date_format']; } if ( ! empty($config['log_file_permissions']) && is_int($config['log_file_permissions'])) { $this->_file_permissions = $config['log_file_permissions']; } } // -------------------------------------------------------------------- /** * Write Log File * * Generally this function will be called using the global log_message() function * * @param string the error level: 'error', 'debug' or 'info' * @param string the error message * @return bool */ public function write_log($level, $msg) { if ($this->_enabled === FALSE) { return FALSE; } $level = strtoupper($level); if (( ! isset($this->_levels[$level]) OR ($this->_levels[$level] > $this->_threshold)) && ! isset($this->_threshold_array[$this->_levels[$level]])) { return FALSE; } $filepath = $this->_log_path.'log-'.date('Y-m-d').'.'.$this->_file_ext; $message = ''; if ( ! file_exists($filepath)) { $newfile = TRUE; // Only add protection to php files if ($this->_file_ext === 'php') { $message .= "<?php defined('BASEPATH') OR exit('No direct script access allowed'); ?>\n\n"; } } if ( ! $fp = @fopen($filepath, 'ab')) { return FALSE; } $message .= $level.' - '.date($this->_date_fmt).' --> '.$msg."\n"; flock($fp, LOCK_EX); for ($written = 0, $length = strlen($message); $written < $length; $written += $result) { if (($result = fwrite($fp, substr($message, $written))) === FALSE) { break; } } flock($fp, LOCK_UN); fclose($fp); if (isset($newfile) && $newfile === TRUE) { chmod($filepath, $this->_file_permissions); } return is_int($result); } } /* End of file Log.php */ /* Location: ./system/core/Log.php */