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<?php
/**
* $Id: Logger.class.php 10 2007-05-27 10:55:12Z spocke $
*
* @package MCFileManager.filesystems
* @author Moxiecode
* @copyright Copyright © 2005, Moxiecode Systems AB, All rights reserved.
*/
// File type contstants
define('MC_LOGGER_DEBUG', 0);
define('MC_LOGGER_INFO', 10);
define('MC_LOGGER_WARN', 20);
define('MC_LOGGER_ERROR', 30);
define('MC_LOGGER_FATAL', 40);
/**
* Logging utility class. This class handles basic logging with levels, log rotation and custom log formats. It's
* designed to be compact but still powerful and flexible.
*/
class Moxiecode_Logger {
// Private fields
var $_path;
var $_filename;
var $_maxSize;
var $_maxFiles;
var $_maxSizeBytes;
var $_level;
var $_format;
/**
* Constructs a new logger instance.
*/
function Moxiecode_Logger() {
$this->_path = "";
$this->_filename = "{level}.log";
$this->setMaxSize("100k");
$this->_maxFiles = 10;
$this->_level = MC_LOGGER_DEBUG;
$this->_format = "[{time}] [{level}] {message}";
}
/**
* Sets the current log level, use the MC_LOGGER constants.
*
* @param int $level Log level instance for example MC_LOGGER_DEBUG.
*/
function setLevel($level) {
if (is_string($level)) {
switch (strtolower($level)) {
case "debug":
$level = MC_LOGGER_DEBUG;
break;
case "info":
$level = MC_LOGGER_INFO;
break;
case "warn":
case "warning":
$level = MC_LOGGER_WARN;
break;
case "error":
$level = MC_LOGGER_ERROR;
break;
case "fatal":
$level = MC_LOGGER_FATAL;
break;
default:
$level = MC_LOGGER_FATAL;
}
}
$this->_level = $level;
}
/**
* Returns the current log level for example MC_LOGGER_DEBUG.
*
* @return int Current log level for example MC_LOGGER_DEBUG.
*/
function getLevel() {
return $this->_level;
}
function setPath($path) {
$this->_path = $path;
}
function getPath() {
return $this->_path;
}
function setFileName($file_name) {
$this->_filename = $file_name;
}
function getFileName() {
return $this->_filename;
}
function setFormat($format) {
$this->_format = $format;
}
function getFormat() {
return $this->_format;
}
function setMaxSize($size) {
// Fix log max size
$logMaxSizeBytes = intval(preg_replace("/[^0-9]/", "", $size));
// Is KB
if (strpos((strtolower($size)), "k") > 0)
$logMaxSizeBytes *= 1024;
// Is MB
if (strpos((strtolower($size)), "m") > 0)
$logMaxSizeBytes *= (1024 * 1024);
$this->_maxSizeBytes = $logMaxSizeBytes;
$this->_maxSize = $size;
}
function getMaxSize() {
return $this->_maxSize;
}
function setMaxFiles($max_files) {
$this->_maxFiles = $max_files;
}
function getMaxFiles() {
return $this->_maxFiles;
}
function debug($msg) {
$args = func_get_args();
$this->_logMsg(MC_LOGGER_DEBUG, implode(', ', $args));
}
function info($msg) {
$args = func_get_args();
$this->_logMsg(MC_LOGGER_INFO, implode(', ', $args));
}
function warn($msg) {
$args = func_get_args();
$this->_logMsg(MC_LOGGER_WARN, implode(', ', $args));
}
function error($msg) {
$args = func_get_args();
$this->_logMsg(MC_LOGGER_ERROR, implode(', ', $args));
}
function fatal($msg) {
$args = func_get_args();
$this->_logMsg(MC_LOGGER_FATAL, implode(', ', $args));
}
function isDebugEnabled() {
return $this->_level >= MC_LOGGER_DEBUG;
}
function isInfoEnabled() {
return $this->_level >= MC_LOGGER_INFO;
}
function isWarnEnabled() {
return $this->_level >= MC_LOGGER_WARN;
}
function isErrorEnabled() {
return $this->_level >= MC_LOGGER_ERROR;
}
function isFatalEnabled() {
return $this->_level >= MC_LOGGER_FATAL;
}
function _logMsg($level, $message) {
$roll = false;
if ($level < $this->_level)
return;
$logFile = $this->toOSPath($this->_path . "/" . $this->_filename);
switch ($level) {
case MC_LOGGER_DEBUG:
$levelName = "DEBUG";
break;
case MC_LOGGER_INFO:
$levelName = "INFO";
break;
case MC_LOGGER_WARN:
$levelName = "WARN";
break;
case MC_LOGGER_ERROR:
$levelName = "ERROR";
break;
case MC_LOGGER_FATAL:
$levelName = "FATAL";
break;
}
$logFile = str_replace('{level}', strtolower($levelName), $logFile);
$text = $this->_format;
$text = str_replace('{time}', date("Y-m-d H:i:s"), $text);
$text = str_replace('{level}', strtolower($levelName), $text);
$text = str_replace('{message}', $message, $text);
$message = $text . "\r\n";
// Check filesize
if (file_exists($logFile)) {
$size = @filesize($logFile);
if ($size + strlen($message) > $this->_maxSizeBytes)
$roll = true;
}
// Roll if the size is right
if ($roll) {
for ($i=$this->_maxFiles-1; $i>=1; $i--) {
$rfile = $this->toOSPath($logFile . "." . $i);
$nfile = $this->toOSPath($logFile . "." . ($i+1));
if (@file_exists($rfile))
@rename($rfile, $nfile);
}
@rename($logFile, $this->toOSPath($logFile . ".1"));
// Delete last logfile
$delfile = $this->toOSPath($logFile . "." . ($this->_maxFiles + 1));
if (@file_exists($delfile))
@unlink($delfile);
}
// Append log line
if (($fp = @fopen($logFile, "a")) != null) {
@fputs($fp, $message);
@fflush($fp);
@fclose($fp);
}
}
/**
* Converts a Unix path to OS specific path.
*
* @param String $path Unix path to convert.
*/
function toOSPath($path) {
return str_replace("/", DIRECTORY_SEPARATOR, $path);
}
}
?>
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