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<?php
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/**
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*
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* @category event logging
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* @package core
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* @author Independend-Software-Team
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* @author WebsiteBaker Project
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* @copyright 2009-2011, Website Baker Org. e.V.
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* @link http://www.websitebaker2.org/
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* @license http://www.gnu.org/licenses/gpl.html
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* @platform WebsiteBaker 2.8.2
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* @requirements PHP 5.2.2 and higher
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* @version $Id: class.logfile.php 1533 2011-12-08 00:05:20Z Luisehahne $
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* @filesource $HeadURL: svn://isteam.dynxs.de/wb-archiv/branches/2.8.x/wb/framework/class.logfile.php $
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* @lastmodified $Date: 2011-12-08 01:05:20 +0100 (Thu, 08 Dec 2011) $
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* @description definition of all core constants.
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*/
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/**
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* Description of classlog
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*
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* @author wkl
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*/
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class LogFile {
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private $_fh; // file-handle for logfile
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private $_log_path; // path to logfile
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private $_log_file; // name of logfile
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private $_error = false; // store internal errors
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/*
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* class can not be instanciated standalone
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*/
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protected function __construct( $log_file )
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{
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$this->_log_file = $log_file;
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}
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/*
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* open the logfile for append
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*/
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private function openLogFile()
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{
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$this->_fh = fopen($this->_log_path.$this->_log_file, 'ab');
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return isset($this->_fh);
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}
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/*
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* provide read-only properties
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*/
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public function __get($property)
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{
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switch(strtolower($property)):
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case 'error':
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return $this->_error;
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break;
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default:
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return null;
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endswitch;
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}
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/*
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* flush and close logfile
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*/
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private function closeLogFile()
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{
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if( isset($this->_fh) )
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{
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fflush($this->_fh);
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fclose($this->_fh);
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unset($this->_fh);
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}
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}
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/*
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* @param string $logdir: directory to place the logfile
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* @return bool: true if directory is valid and writeable
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* @description:
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*/
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public function setLogDir( $logdir )
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{
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$this->_error = false;
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$retval = false;
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if( ($logdir = realpath($logdir)) )
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{
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$logdir = rtrim(str_replace('\\', '/', $logdir), '/');
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if( defined('WB_PATH') )
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{
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$sysroot = WB_PATH;
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}
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else
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{
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$script_filename = str_replace('\\', '/', $_SERVER['SCRIPT_FILENAME']);
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$script_name = str_replace('\\', '/', $_SERVER['SCRIPT_NAME']);
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$sysroot = str_replace($script_name, '', $script_filename);
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}
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if( stripos($logdir, $sysroot) === 0 )
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{
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if( is_writable($logdir))
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{
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if( file_exists($logdir.'/'.$this->_log_file) )
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{
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if( is_writable($logdir.'/'.$this->_log_file) )
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{
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$this->_log_path = $logdir.'/';
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$retval = true;
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}else
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{
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$this->_error = 'existing logfile is not writable! ['.$logdir.$this->_log_file.']';
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}
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}
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else
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{
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$this->_log_path = $logdir.'/';
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$retval = true;
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}
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}else
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{
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$this->_error = 'access denied for directory ['.$logdir.']';
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}
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}else
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{
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$this->_error = 'logdir [ '.$logdir.' ] points outside of DOCUMENT_ROOT [ '.$sysroot.' ]';
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}
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}else
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{
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$this->_error = 'logdir can not be resolved ['.$logdir.']';
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}
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return $retval;
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}
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/*
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* @param string $line: preformatted message to write into the logfile
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* @return none: an error will throw a exception
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*/
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protected function writeRaw( $message )
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{
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array_unshift( $message, (defined($_SESSION['USER_ID'])?$_SESSION['USER_ID']:0) );
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array_unshift( $message, (isset($_SERVER['REMOTE_ADDR'])?$_SERVER['REMOTE_ADDR']:'#') );
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array_unshift( $message, gmdate(DATE_W3C) );
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if( isset($this->_log_path) ){
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if($this->openLogFile())
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{
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if( fputcsv($this->_fh, $message, ',', '"') !== false )
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{
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$this->closeLogFile();
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}
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else
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{
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throw new Exception('unable to append line ['.$this->_log_path.$this->_log_file.']');
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}
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}
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else
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{
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throw new Exception('unable to open logfile ['.$this->_log_path.$this->_log_file.']');
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}
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}else
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{
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throw new Exception('undefined path for logfile ['.$this->_log_file.']');
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}
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}
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} // end of class
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/*
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* Errorlog handler
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*/
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class ErrorLog extends LogFile{
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private static $_instance;
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protected function __construct()
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{
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parent::__construct('error.log');
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}
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private function __clone() {}
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public static function handle()
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{
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if (!isset(self::$_instance)) {
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$c = __CLASS__;
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self::$_instance = new $c;
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}
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return self::$_instance;
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}
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/*
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* @param string $message: message to write into the logfile
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* @param string $file: (optional) name of the file where the error occures
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* @param string $function: (optional) name of the function where the error occures
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* @param string $line: (optional) number of the line where the error occures
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* @return none: an error will throw a exception
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*/
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public function write( $message, $file = '#', $function = '#', $line = '#' )
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{
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if( !is_array($message) )
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{
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$message = array($file, $function, $line, $message);
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}
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self::handle()->writeRaw( $message );
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}
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} // end of class
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/*
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* Accesslog handler
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*/
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class AccessLog extends LogFile{
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private static $_instance;
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protected function __construct()
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{
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parent::__construct('access.log');
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}
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private function __clone() {}
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public static function handle()
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{
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if (!isset(self::$_instance)) {
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$c = __CLASS__;
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self::$_instance = new $c;
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}
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return self::$_instance;
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}
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/*
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* @param string $message: message to write into the logfile
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* @return none: an error will throw a exception
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*/
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public function write( $message )
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{
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if( !is_array($message) )
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{
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$message = array($message);
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}
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self::handle()->writeRaw( $message );
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}
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} // end of class
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?>
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