libraries/Log.php

   1 <?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');\r
   2 /**\r
   3  * CodeIgniter\r
   4  *\r
   5  * An open source application development framework for PHP 4.3.2 or newer\r
   6  *\r
   7  * @package             CodeIgniter\r
   8  * @author              ExpressionEngine Dev Team\r
   9  * @copyright   Copyright (c) 2008, EllisLab, Inc.\r
  10  * @license             http://codeigniter.com/user_guide/license.html\r
  11  * @link                http://codeigniter.com\r
  12  * @since               Version 1.0\r
  13  * @filesource\r
  14  */\r
  15 \r
  16 // ------------------------------------------------------------------------\r
  17 \r
  18 /**\r
  19  * Logging Class\r
  20  *\r
  21  * @package             CodeIgniter\r
  22  * @subpackage  Libraries\r
  23  * @category    Logging\r
  24  * @author              ExpressionEngine Dev Team\r
  25  * @link                http://codeigniter.com/user_guide/general/errors.html\r
  26  */\r
  27 class CI_Log {\r
  28 \r
  29         var $log_path;\r
  30         var $_threshold = 1;\r
  31         var $_date_fmt  = 'Y-m-d H:i:s';\r
  32         var $_enabled   = TRUE;\r
  33         var $_levels    = array('ERROR' => '1', 'DEBUG' => '2',  'INFO' => '3', 'ALL' => '4');\r
  34 \r
  35         /**\r
  36          * Constructor\r
  37          *\r
  38          * @access      public\r
  39          */\r
  40         function CI_Log()\r
  41         {\r
  42                 $config =& get_config();\r
  43                 \r
  44                 $this->log_path = ($config['log_path'] != '') ? $config['log_path'] : BASEPATH.'logs/';\r
  45                 \r
  46                 if ( ! is_dir($this->log_path) OR ! is_really_writable($this->log_path))\r
  47                 {\r
  48                         $this->_enabled = FALSE;\r
  49                 }\r
  50                 \r
  51                 if (is_numeric($config['log_threshold']))\r
  52                 {\r
  53                         $this->_threshold = $config['log_threshold'];\r
  54                 }\r
  55                         \r
  56                 if ($config['log_date_format'] != '')\r
  57                 {\r
  58                         $this->_date_fmt = $config['log_date_format'];\r
  59                 }\r
  60         }\r
  61         \r
  62         // --------------------------------------------------------------------\r
  63         \r
  64         /**\r
  65          * Write Log File\r
  66          *\r
  67          * Generally this function will be called using the global log_message() function\r
  68          *\r
  69          * @access      public\r
  70          * @param       string  the error level\r
  71          * @param       string  the error message\r
  72          * @param       bool    whether the error is a native PHP error\r
  73          * @return      bool\r
  74          */             \r
  75         function write_log($level = 'error', $msg, $php_error = FALSE)\r
  76         {               \r
  77                 if ($this->_enabled === FALSE)\r
  78                 {\r
  79                         return FALSE;\r
  80                 }\r
  81         \r
  82                 $level = strtoupper($level);\r
  83                 \r
  84                 if ( ! isset($this->_levels[$level]) OR ($this->_levels[$level] > $this->_threshold))\r
  85                 {\r
  86                         return FALSE;\r
  87                 }\r
  88         \r
  89                 $filepath = $this->log_path.'log-'.date('Y-m-d').EXT;\r
  90                 $message  = '';\r
  91                 \r
  92                 if ( ! file_exists($filepath))\r
  93                 {\r
  94                         $message .= "<"."?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed'); ?".">\n\n";\r
  95                 }\r
  96                         \r
  97                 if ( ! $fp = @fopen($filepath, FOPEN_WRITE_CREATE))\r
  98                 {\r
  99                         return FALSE;\r
 100                 }\r
 101 \r
 102                 $message .= $level.' '.(($level == 'INFO') ? ' -' : '-').' '.date($this->_date_fmt). ' --> '.$msg."\n";\r
 103                 \r
 104                 flock($fp, LOCK_EX);    \r
 105                 fwrite($fp, $message);\r
 106                 flock($fp, LOCK_UN);\r
 107                 fclose($fp);\r
 108         \r
 109                 @chmod($filepath, FILE_WRITE_MODE);             \r
 110                 return TRUE;\r
 111         }\r
 112 \r
 113 }\r
 114 // END Log Class\r
 115 \r
 116 /* End of file Log.php */\r
 117 /* Location: ./system/libraries/Log.php */