Source for file class.Logger.inc

<?php //-*-php-*-
/*   ********************************************************************   **
**   Copyright notice                                                       **
**                                                                          **
**   (c) 1995-2003 PHPOpenChat Development Team                             **
**   http://phpopenchat.sourceforge.net/                                    **
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**   All rights reserved                                                    **
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**   This script is part of the PHPOpenChat project. The PHPOpenChat        **
**   project is free software; you can redistribute it and/or modify        **
**   it under the terms of the GNU General Public License as published by   **
**   the Free Software Foundation; either version 2 of the License, or      **
**   (at your option) any later version.                                    **
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**   The GNU General Public License can be found at                         **
**   http://www.gnu.org/copyleft/gpl.html.                                  **
**   A copy is found in the textfile GPL and important notices to the       **
**   license from the team is found in the textfile LICENSE distributed     **
**   with these scripts.                                                    **
**                                                                          **
**   This script is distributed in the hope that it will be useful,         **
**   but WITHOUT ANY WARRANTY; without even the implied warranty of         **
**   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          **
**   GNU General Public License for more details.                           **
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**   This copyright notice MUST APPEAR in all copies of the script!         **
**   ********************************************************************   */
 
//Get default values
require_once(POC_BASE.'/config.inc.php');
 
/**
* Implements a logging mechanism
*
* @package phpopenchat
* @author  Michael Oertel <michael@ortelius.de>
* @access  public
* @version $Id: class.Logger.inc,v 1.16 2003/10/18 08:39:03 letreo Exp $
*/
class Logger
{
 
  
  /**
  * Constructor
  *
  * @access public
  */
  function Logger()
  {
  }
  
  /**
  * Writes lines into the log file
  *
  * @access private
  * @return void 
  */
  function _write( $case, $message, $file = '', $line = '' )
  {
    if( NO_LOGGING ) return null;
    
    define_syslog_variables();
    $file = ($file!='')? $file.':'.$line.' ' : '';
 
    //mo, check for user-ip exists in Chatter::go_online()
    if( isset($_SESSION['chatter']) ) {
      $ip = $_SESSION['chatter']->get_last_IP();
    } else {
      $ip = (isset($_SERVER['REMOTE_ADDR']))? $_SERVER['REMOTE_ADDR'] : '-' ;
    }
    $log = rtrim("$ip $file $message").NL;
 
    if ( LOG_TO_FILE ) {
      $fh=fopen(LOG_TO_FILE, "a"); 
      fwrite($fh, date("Y-m-d H:i:s"). " $case $log");
      fclose($fh);
    }
 
    if ( LOG_TO_SYSLOG ) {
      openlog('[POC-'.$case.']', LOG_PERROR, LOG_SYSLOG_FACIL);
      switch($case)
      {
        case 'INFO':   syslog(LOG_INFO, $log);    break;
        case 'LINE':   syslog(LOG_INFO, $log);    break;
        case 'POST':   syslog(LOG_INFO, $log);    break;
        case 'DEBUG':  syslog(LOG_DEBUG, $log);   break;
        case 'WARNING':syslog(LOG_WARNING, $log); break;
        case 'ERROR':  syslog(LOG_ERR, $log);     break;
        case 'EMERG':  syslog(LOG_EMERG, $log);   break;
      }
      closelog();
    }
  }
 
  function history_raw ( $input ) {
    if ( NO_LOGGING || !LOG_TO_FILE || ! LOGFILE_HISTORY_RAW ) return null;
 
    if (! $fh=fopen(LOGFILE_HISTORY_RAW, "a") ) {
      $_SESSION['logger']->error("can not open".LOGFILE_HISTORY_RAW );
    }
 
    $log.= date ("Y-m-d H:i:s", $input->get_date() );
    $log.= " ".$input->get_ip(); 
    $log.= " [" . $input->get_channel() . "] " ;
    $chatter=$input->get_chatter();
    $log.=$chatter->get_nick();   
    unset($chatter);
 
    $log .= $input->get_whispered() == 'on' ? " w" : " s" ;
    $log.= " to ".$input->get_recipient() . ":" ; 
    $log .= " ". $input->get_line();
 
    fwrite($fh, $log."\n");
    fclose($fh);
    unset($log);
  }
 
  function history_html ( $input ) {
    if ( ! LOGFILE_HISTORY_HTML ) return null;
    
    $_SESSION['logger']->debug("hist-html:".$input);
  }
 
  /**
  * Loggs info messages
  *
  * @access public
  */
  function info( $message )
  {
    if( !LOG_POC_INFOS ) return null;
    $this->_write('INFO',$message);
  }
  
  /**
  * Loggs lines
  *
  * @access public
  */
  function line($message)
  {
    if( !LOG_POC_LINES ) return null;
    $this->_write('LINE',$message);
  }
  
  /**
  * Loggs raw posts
  *
  * @access public
  */
  function raw_post($message)
  {
    if( !LOG_POC_RAW_POST ) return null;
    $this->_write('POST',$message);
  }
 
  /**
  * Loggs debug messages
  *
  * @access public
  */
  function debug($message, $file = '' , $line = '')
  {
    if( !LOG_POC_DEBUG ) return null;
    $this->_write('DEBUG',$message, $file, $line);
  }
 
  /**
  * Loggs warnings
  *
  * warning conditions
  *
  * @access public
  */
  function warning($message)
  {
    if( !LOG_POC_WARNING ) return null;
    $this->_write('WARNING',$message);
  }
 
  /**
  * Loggs errors
  *
  * error conditions
  *
  * @access public
  */
  function error($message, $file = '' , $line = '')
  {
    if( !LOG_POC_ERROR ) return null;
    $this->_write('ERROR',$message, $file, $line);
  }
 
  /**
  * Loggs emergency errors
  *
  * system is unusable
  *
  * @access public
  */
  function emerg($message, $file = '' , $line = '')
  {
    if( !LOG_POC_EMERG ) return null;
    $this->_write('EMERG',$message, $file, $line);
  }
 
  /**
  * Loggs traffic
  *
  * @access public
  * @param integer 
  * @return mixed 
  */
  function traffic( $content_length = 0 )
  {
    if( !LOG_POC_TRAFFIC || NO_LOGGING ) return null;
    //if( !$_SESSION['chat']->check_php_version( '4.3.0' ) ) return null;
    if( php_sapi_name() == 'cgi' ) return null;
    if( !function_exists('apache_response_headers') ) return null;
    if( !is_int($content_length) ) die('Integer expected!');
 
    $bytes_in  = 0;
    $bytes_out = 0;
 
    $headers_out = apache_response_headers();
    if( is_array($headers_out) ) {
      foreach( $headers_out as $key => $value ) {
        $bytes_out += strlen($key) + strlen($value);
      }
    }
 
    $headers_in = apache_request_headers();
    if( is_array($headers_in) ) {
      foreach( $headers_in as $key => $value ) {
        $bytes_in += strlen($key) + strlen($value);
      }
    }
    $bytes_out += $content_length;
    $_SESSION['chat']->connect();
    $_SESSION['chat']->log_traffic( $bytes_in, $bytes_out );
    $_SESSION['chat']->disconnect();
  }
}
?>