<?php
session_start();

$_SESSION['count_d'] = $_SESSION['count_f'] = $_SESSION['filesize'] = 0;

// 172 files, 32 folders
// 압축 하기 전				 1.10 MB	(1,163,611 bytes)
// php_strip_whitespace		626 KB		(641,967 bytes)
// gzip = true				339 KB		(347,710 bytes)
ci_min('system', '', true);

// 파일 수량
if ($_SESSION['count_f'] > 0)
{
	echo 'count_f = ' . $_SESSION['count_f'] . "<br />";
}

// 디렉토리 수량
if ($_SESSION['count_d'] > 0)
{
	echo 'count_d = ' . $_SESSION['count_d'] . "<br />";
}

// 압축 후 용량
if ($_SESSION['filesize'] > 0)
{
	echo 'file_size = ' . $_SESSION['filesize'] . "<br />";
}

$_SESSION['count_d'] = $_SESSION['count_f'] = $_SESSION['filesize'] = 0;

unset($_SESSION);

// system 디렉토리, 목표 디렉토리, 압축 사용 여부
function ci_min($directory = 'system', $backupdir = 'backup', $gzip='false')
{
	if (!is_dir($backupdir))
	{
		@mkdir($backupdir);
	}
	$i = 0;
	$mydir = dir($directory);
	$backupdir = 'backup';
	if (!is_dir($backupdir))
	{
		@mkdir($backupdir);
	}
	if (!file_exists($backupdir . '/' . $directory))
	{
		mkdir($backupdir . '/' . $directory);
		$_SESSION['count_d']++;
	}

	$filesize_s = $filesize_t = 0;
	while ($file = $mydir->read())
	{
		// directory
		if ((is_dir($directory . '/' . $file)) AND ($file != '.') AND ($file != '..'))
		{
			ci_min($directory . '/' . $file, $backupdir, $gzip);
		}
		// file
		else
		{
			if (!file_exists($backupdir.'/'.$directory.'/index.php') && !file_exists($backupdir.'/'.$directory.'/index.html'))
			{
				file_put_contents($backupdir.'/'.$directory.'/index.html', '');
				echo "Creating " . $backupdir.'/'.$directory.'/index.html' . "<br />";
				$_SESSION['count_f']++;
			}

			// php file
			if (substr($file, -4) == '.php')
			{
				if ($gzip == true)
				{
					file_put_contents($backupdir . '/' . $directory . '/' . $file, "<?php eval(gzuncompress(base64_decode('".base64_encode(gzcompress(trim(substr(php_strip_whitespace($directory . '/' . $file), 5)), 9))."')));");
				}
				else
				{
					file_put_contents($backupdir . '/' . $directory . '/' . $file, trim(php_strip_whitespace($directory . '/' . $file)));
				}
				$_SESSION['filesize'] += filesize($backupdir . '/' . $directory . '/' . $file);
				$_SESSION['count_f']++;
				echo "Compacting " . $directory . '/' . $file . "<br />";
			}
			// index.html
			else if ($file == 'index.html' || $file == '.' || $file == '..')
			{
			}
			else
			{
				copy($directory . '/' . $file, $backupdir . '/' . $directory . '/' . $file);
				echo "Copying " . $directory . '/' . $file . "<br />";
				$_SESSION['filesize'] += filesize($backupdir . '/' . $directory . '/' . $file);
				$_SESSION['count_f']++;
			}
			if (file_exists($backupdir.'/'.$directory.'/index.php') && file_exists($backupdir.'/'.$directory.'/index.html'))
			{
				unlink($backupdir.'/'.$directory.'/index.html');
				$_SESSION['count_f']--;
			}
		}
	}
	$mydir->close();
}

?>