rooter.php

<?php

session_start();

if(!isset($_GET['f']))
{
	_404();
}
else
{
	if($_GET['f'] === '')
	{
		$_filename = 'index.php';
	}
	else if(file_exists($_GET['f']))
	{
		$_filename = $_GET['f'];
	}
	else
	{
	
		_404();
	}
}

// Get lang from Session or geolocalisation
$lang = get_lang();



$hasChanges = false;

function get_lang()
{
	$lang = 'en';
	
	// Define language for countries
	$country['fr'] = array('FR', 'BE', 'LU', 'MC', 'MU', 'YT', 'MF');
	$country['en'] = array('US', 'UK', 'GB', 'AU');
	$country['de'] = array('DE');
	$country['jp'] = array('JP');
	$country['sv'] = array('SE');
	/*$country['it'] = array('IT');
	*/

	if(isset($_SESSION['lang']))
	{
		$lang = $_SESSION['lang'];
	}
	elseif(isset($_SERVER['REMOTE_ADDR']))
	{
		$url = 'http://api.ipinfodb.com/v3/ip-country/?key=2088fec6a9b33e2851bd9b69f2bae8536708288e136cff7a7e61c52974e2b482&ip=' . $_SERVER['REMOTE_ADDR'] . '&format=json';
		
		$ch = curl_init();
		curl_setopt($ch, CURLOPT_URL, $url);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
		$content = curl_exec($ch);
		$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
		curl_close($ch);
		
		$ipData = json_decode($content);
		
		if($httpCode === 200 && $ipData->statusCode == 'OK')
		{
			foreach($country as $isoLang => $countryList)
			{
				if(in_array($ipData->countryCode, $countryList))
				{
					$lang = $isoLang;
				}
			}
		}
		$_SESSION['lang'] = $lang;
	}
	
	
	
	return $lang;
}

function translate($id, $text)
{
	global $hasChanges, $translation;
	
	// If translation exists
	if(isset($translation[$id]))
	{
		/* If it's not a new translation, we can translate it
		 * Else, we use default text
		 */
		if(strpos($translation[$id], '#new# ') === false)
		{
			return $translation[$id];
		}
		else
		{
			return substr($translation[$id], 6);
		}
	}
	else
	{
		$hasChanges = true;
		$translation[$id] = addcslashes('#new# ' . $text , '"');
	}
	
	return $text;
}

$langfile = 'lang/' . $lang . '.txt';

$initTranslation = true;

$translation = array();
if(!file_exists($langfile))
{
	mkdir($langfile);
}
else
{
	if(false === ($translation = parse_ini_file($langfile)))
	{
		$initTranslation = false;
	}
}

ob_start();

include($_filename);

$sContent = ob_get_contents();
ob_end_clean();

//$mtimeStart = microtime();


$sContent = preg_replace_callback('#{tr id=([0-9a-z_]+)}(.*){/tr}#sUi', 
	create_function('$matches', '$id = $matches[1];
	$text = $matches[2];
	return translate($id, $text);'), $sContent);

echo $sContent;

if($hasChanges && $initTranslation === true)
{
	include 'r/php/write_ini.php';
	
	ksort($translation);
	
	write_ini_file($translation, $langfile);
}

/*
$mtimeEnd = microtime();
echo 'preg time : ' . ($mtimeEnd - $mtimeStart);
*/

function _404()
{
	require '/r/404.html';
	die;
}