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<?php
/**
* Akeeba Engine
* The modular PHP5 site backup engine
*
* @copyright Copyright (c)2006-2016 Nicholas K. Dionysopoulos
* @license GNU GPL version 3 or, at your option, any later version
* @package akeebaengine
*
*/
// Protection against direct access
defined('AKEEBAENGINE') or die();
/**
* Writes messages to the backup log file
* I couldn't extend the extisting one since there were a lot of "self" calls instead of "static",
* and inheritance wouldn't work.
*/
class AliceUtilLogger
{
public static $logName = null;
static function ResetLog($tag)
{
$oldLogName = AliceUtilLogger::$logName;
AliceUtilLogger::$logName = AliceUtilLogger::logName($tag);
$defaultLog = self::logName(null);
// Close the file if it's open
if ($oldLogName == AliceUtilLogger::$logName)
{
self::WriteLog(null);
}
// Remove any old log file
@unlink(AliceUtilLogger::$logName);
if ( !empty($tag))
{
// Rename the default log (if it exists) to the new name
@rename($defaultLog, AliceUtilLogger::$logName);
}
// Touch the log file
$fp = @fopen(AliceUtilLogger::$logName, 'w');
if ($fp !== false)
{
@fclose($fp);
}
// Delete the default log
if ( !empty($tag))
{
@unlink($defaultLog);
}
@chmod(AliceUtilLogger::$logName, 0666);
self::WriteLog(true, '');
}
static function WriteLog($level, $message = '')
{
static $oldLog = null;
static $configuredLoglevel;
static $site_root_untranslated;
static $site_root;
static $fp = null;
// Make sure we have a log name
if (empty(self::$logName))
{
self::$logName = self::logName();
}
// Check for log name changes
if (is_null($oldLog))
{
$oldLog = self::$logName;
}
elseif ($oldLog != self::$logName)
{
// The log file changed. Close the old log.
if (is_resource($fp))
{
@fclose($fp);
}
$fp = null;
}
// Close the log file if the level is set to NULL
if (is_null($level) && !is_null($fp))
{
@fclose($fp);
$fp = null;
return;
}
if (empty($site_root) || empty($site_root_untranslated))
{
$site_root_untranslated = \Akeeba\Engine\Platform::getInstance()->get_site_root();
$site_root = \Akeeba\Engine\Factory::getFilesystemTools()
->TranslateWinPath($site_root_untranslated);
}
if (empty($configuredLoglevel) or ($level === true))
{
// Load the registry and fetch log level
$registry = \Akeeba\Engine\Factory::getConfiguration();
$configuredLoglevel = $registry->get('akeeba.basic.log_level');
$configuredLoglevel = $configuredLoglevel * 1;
return;
}
if ($level === false)
{
// Pause logging
$configuredLogLevel = false;
return;
}
// Catch paused logging
if ($configuredLoglevel === false)
{
return;
}
if (($configuredLoglevel >= $level) && ($configuredLoglevel != 0))
{
if ( !defined('AKEEBADEBUG'))
{
$message = str_replace($site_root_untranslated, "<root>", $message);
$message = str_replace($site_root, "<root>", $message);
}
$message = str_replace("\n", ' \n ', $message);
switch ($level)
{
case _AE_LOG_ERROR:
$string = "ERROR |";
break;
case _AE_LOG_WARNING:
$string = "WARNING |";
break;
case _AE_LOG_INFO:
$string = "INFO |";
break;
default:
$string = "DEBUG |";
break;
}
$string .= @strftime("%y%m%d %H:%M:%S") . "|$message\r\n";
if (is_null($fp))
{
$fp = @fopen(AliceUtilLogger::$logName, "a");
}
if ( !($fp === false))
{
$result = @fwrite($fp, $string);
if ($result === false)
{
// Try harder with the file pointer, will ya?
$fp = @fopen(AliceUtilLogger::$logName, "a");
$result = @fwrite($fp, $string);
}
}
}
}
/**
* Calculates the absolute path to the log file. Instead of using the path coming from
* Akeeba Backup config, we will always use Joomla Tmp dir
*
* @param string $tag The backup run's tag
*
* @return string The absolute path to the log file
*/
public static function logName($tag = null)
{
if (empty($tag))
{
$fileName = 'akeeba.log';
}
else
{
$fileName = "akeeba.$tag.log";
}
// Get log's file name
return \Akeeba\Engine\Factory::getFilesystemTools()
->TranslateWinPath(JPATH_ROOT . '/tmp' . DIRECTORY_SEPARATOR . $fileName);
}
public static function closeLog()
{
self::WriteLog(null, null);
}
public static function openLog($tag = null)
{
self::$logName = self::logName($tag);
@touch(self::$logName);
}
}
// Make sure we close the log file every time we finish with a page load
register_shutdown_function(array('AliceUtilLogger', 'closeLog'));