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combineify.php
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<?php
require dirname(__FILE__) . '/vendor/autoload.php';
use MatthiasMullie\Minify;
/************************************************************************
* CSS and Javascript Combinator 0.6
* Copyright 2006 by Niels Leenheer
* Updated 2016 - d8ahazard
*/
if (ini_get('max_execution_time')) {
ini_set('max_execution_time', '300');
}
$cache = true;
$cachedir = dirname(__FILE__) . '/cache';
if ((!file_exists($cachedir)) && $cache) {
mkdir($cachedir, 0777, true);
}
$type = $_GET['type'];
$elements = explode(',', $_GET['files']);
// Determine last modification date of the files
$lastmodified = 0;
while (list(,$element) = each($elements)) {
$path = realpath($element);
if (($type == 'javascript' && substr($path, -3) != '.js') ||
($type == 'css' && substr($path, -4) != '.css')) {
header ("HTTP/1.0 403 Forbidden");
exit;
}
if (!file_exists($path)) {
header ("HTTP/1.0 404 Not Found");
exit;
}
$lastmodified = max($lastmodified, filemtime($path));
}
// Send Etag hash
$hash = $lastmodified . '-' . md5($_GET['files']);
header ("Etag: \"" . $hash . "\"");
if (isset($_SERVER['HTTP_IF_NONE_MATCH']) &&
stripslashes($_SERVER['HTTP_IF_NONE_MATCH']) == '"' . $hash . '"')
{
// Return visit and no modifications, so do not send anything
header ("HTTP/1.0 304 Not Modified");
header ('Content-Length: 0');
}
else
{
// First time visit or files were modified
if ($cache)
{
// Determine supported compression method
$gzip = strstr($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip');
$deflate = strstr($_SERVER['HTTP_ACCEPT_ENCODING'], 'deflate');
// Determine used compression method
$encoding = $gzip ? 'gzip' : ($deflate ? 'deflate' : 'none');
// Check for buggy versions of Internet Explorer
if (!strstr($_SERVER['HTTP_USER_AGENT'], 'Opera') &&
preg_match('/^Mozilla\/4\.0 \(compatible; MSIE ([0-9]\.[0-9])/i', $_SERVER['HTTP_USER_AGENT'], $matches)) {
$version = floatval($matches[1]);
if ($version < 6)
$encoding = 'none';
if ($version == 6 && !strstr($_SERVER['HTTP_USER_AGENT'], 'EV1'))
$encoding = 'none';
}
// Try the cache first to see if the combined files were already generated
$cachefile = 'cache-' . $hash . '.' . $type . ($encoding != 'none' ? '.' . $encoding : '');
if (file_exists($cachedir . '/' . $cachefile)) {
if ($fp = fopen($cachedir . '/' . $cachefile, 'rb')) {
if ($encoding != 'none') {
header ("Content-Encoding: " . $encoding);
}
header ("Content-Type: text/" . $type);
header ("Content-Length: " . filesize($cachedir . '/' . $cachefile));
fpassthru($fp);
fclose($fp);
exit;
}
}
}
// Get contents of the files
$contents = '';
reset($elements);
if ($type == 'css') {
$minifier = new Minify\CSS();
}
if ($type =='javascript') {
$minifier = new Minify\JS();
}
while (list(,$element) = each($elements)) {
$path = realpath($element);
$minifier->add($path);
}
$contents = $minifier->minify();
// Send Content-Type
header ("Content-Type: text/" . $type);
header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60 * 24 * 360))); // 30 days
if (isset($encoding) && $encoding != 'none')
{
// Send compressed contents
$contents = gzencode($contents, 9, $gzip ? FORCE_GZIP : FORCE_DEFLATE);
header ("Content-Encoding: " . $encoding);
header ('Content-Length: ' . strlen($contents));
echo $contents;
}
else
{
// Send regular contents
header ('Content-Length: ' . strlen($contents));
echo $contents;
}
// Store cache
if ($cache) {
$cacheString = $cachedir."/*".$type.".gzip";
foreach (glob($cacheString) as $file) {
unlink($file);
}
if ($fp = fopen($cachedir . '/' . $cachefile, 'wb')) {
fwrite($fp, $contents);
fclose($fp);
}
}
}
?>