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8baed187 Michal Kliment
<?php defined('SYSPATH') or die('No direct script access.');
/**
* Message file logging class.
*
* $Id: Log.php 1930 2008-02-05 22:35:57Z armen $
*
* @package Core
* @author Kohana Team
* @copyright (c) 2007 Kohana Team
* @license http://kohanaphp.com/license.html
*/
final class Log {

private static $log_directory;

private static $types = array('error' => 1, 'debug' => 2, 'info' => 3);
private static $messages = array();

/**
* Set the the log directory. The log directory is determined by Kohana::setup.
*
* @param string full log directory path
* @return void
*/
public static function directory($directory)
{
if (self::$log_directory === NULL)
{
// Set the log directory if it has not already been set
self::$log_directory = rtrim($directory, '/').'/';
}
}

/**
* Add a log message.
*
* @param string info, debug, or error
* @param string message to be logged
* @return void
*/
public static function add($type, $message)
{
if (is_array($message))
{
$message = implode(' ', $message);
}
if (trim($message) == '' ||
!isset(self::$types[$type]) ||
self::$types[$type] > Config::get('log_threshold'))
{
return;
}
self::$messages[strtolower($type)][] = array
(
date('Y-m-d G:i:s'),
strip_tags($message),
url::current(TRUE),
);
}
/**
* Add a log exception message
*
* @param Exception $e
*/
public static function add_exception(Exception $e)
{
self::add('error', Kohana::lang(
'core.transaction_exception',
$e->getMessage(), $e->getFile(),
$e->getLine(), $e->getTraceAsString()
));
}

/**
* Write the current log to a file.
*
* @return void
*/
public static function write()
{
// Set the log threshold
$threshold = Config::get('log_threshold');

// Don't log if there is nothing to log to
if ($threshold < 1 OR count(self::$messages) === 0) return;

// Set the log filename
$filename = self::$log_directory.date('Y-m-d').'.log'.EXT;

// Compile the messages
$messages = '';
foreach(self::$messages as $type => $data)
{
foreach($data as $date => $text)
{
list($date, $message, $url) = $text;
$messages .= $date . ' -- ' . $type . ': ' . $message
. ' URL: ' . $url . "\r\n";
}
}

// No point in logging nothing
if ($messages == '')
return;

// Create the log file if it doesn't exist yet
if ( ! file_exists($filename))
{
touch($filename);
chmod($filename, 0644);

// Add our PHP header to the log file to prevent URL access
$messages = "<?php defined('SYSPATH') or die('No direct script access.'); ?>\r\n\r\n".$messages;
}
// add separators between calls
$messages = $messages . "\n";

// Append the messages to the log
file_put_contents($filename, $messages, FILE_APPEND) or trigger_error
(
'The log file could not be written to. Please correct the permissions and refresh the page.',
E_USER_ERROR
);
}

} // End Log