%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/**
*------------------------------------------------------------------------------
* @package T3 Framework for Joomla!
*------------------------------------------------------------------------------
* @copyright Copyright (C) 2004-2013 JoomlArt.com. All Rights Reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
* @authors JoomlArt, JoomlaBamboo, (contribute to this project at github
* & Google group to become co-author)
* @Google group: https://groups.google.com/forum/#!forum/t3fw
* @Link: http://t3-framework.org
*------------------------------------------------------------------------------
*/
// No direct access
defined('_JEXEC') or die();
jimport('joomla.filesystem.file');
jimport('joomla.filesystem.folder');
T3::import('core/path');
/**
* T3Minify class provides extended template tools used for T3 framework
*
* @package T3
*/
class T3Minify
{
/**
* Known Valid CSS Extension Types
* @var array
*/
public static $cssexts = array('.css', '.css1', '.css2', '.css3');
/**
* Known valid js extension
* @var array
*/
public static $jsexts = array('.js');
public static $jstools = array(
'jsmin' => 'JSMin',
'closurecompiler' => 'Minify_JS_ClosureCompiler'
);
public static $jstool = 'jsmin';
public static $exclude = '';
public static function prepare($tpl){
//set the compress tool
self::$exclude = $tpl->getParam('minify_exclude', '');
self::$jstool = $tpl->getParam('minify_js_tool', 'jsmin');
if(self::$exclude){
self::$exclude = '@' . preg_replace('@[,]+@', '|', preg_quote(self::$exclude)) . '@';
}
}
/**
* @param $css
* @return string
*/
public static function minifyCss( $css ) {
//T3::import('minify/csscompressor');
$css = preg_replace( '#\s+#', ' ', $css );
$css = preg_replace( '#/\*.*?\*/#s', '', $css );
$css = str_replace( '; ', ';', $css );
$css = str_replace( ': ', ':', $css );
$css = str_replace( ' {', '{', $css );
$css = str_replace( '{ ', '{', $css );
$css = str_replace( ', ', ',', $css );
$css = str_replace( '} ', '}', $css );
$css = str_replace( ';}', '}', $css );
return trim( $css );
}
/**
* @param $js
* @return string
*/
public static function minifyJs( $js ){
T3::import('minify/' . self::$jstool);
return call_user_func_array(array(self::$jstools[self::$jstool], 'minify'), array($js));
}
/**
*
* Check and convert to css real path
* @param string $url url to check
* @return mixed the css file path or false if not exist in server
*/
public static function cssPath($url = '') {
//exclude
if(self::$exclude && preg_match(self::$exclude, $url)){
return false;
}
$url = preg_replace('#[?\#]+.*$#', '', $url);
$base = JURI::base();
$root = JURI::root(true);
$ret = false;
if(substr($url, 0, 2) === '//'){ //check and append if url is omit http
$url = JURI::getInstance()->getScheme() . ':' . $url;
}
//check for css file extensions
foreach ( self::$cssexts as $ext ) {
if (strlen($ext) <= strlen($url) && substr_compare($url, $ext, -strlen($ext), strlen($ext)) === 0) {
$ret = true;
break;
}
}
if($ret){
if (preg_match('/^https?\:/', $url)) { //is full link
if (strpos($url, $base) === false){
// external css
return false;
}
$path = JPath::clean(JPATH_ROOT . '/' . substr($url, strlen($base)));
} else {
$path = JPath::clean(JPATH_ROOT . '/' . ($root && strpos($url, $root) === 0 ? substr($url, strlen($root)) : $url));
}
return is_file($path) ? $path : false;
}
return false;
}
/**
*
* Check and convert to css real path
* @param string $url url to check
* @return mixed the css file path or false if not exist in server
*/
public static function jsPath($url = '') {
//leave any javascript file that have parameter (K2 is an example)
if(preg_match('@[?#]+.*$@', $url)){
return false;
}
//exclude
if(self::$exclude && preg_match(self::$exclude, $url)){
return false;
}
//clean
$url = preg_replace('@[?#]+.*$@', '', $url);
$base = JURI::base();
$root = JURI::root(true);
$ret = false;
if(substr($url, 0, 2) === '//'){ //check and append if url is omit http
$url = JURI::getInstance()->getScheme() . ':' . $url;
}
//check for css file extensions
foreach ( self::$jsexts as $ext ) {
if (strlen($ext) <= strlen($url) && substr_compare($url, $ext, -strlen($ext), strlen($ext)) === 0) {
$ret = true;
break;
}
}
if($ret){
if (preg_match('/^https?\:/', $url)) { //is full link
if (strpos($url, $base) === false){
// external css
return false;
}
$path = JPath::clean(JPATH_ROOT . '/' . substr($url, strlen($base)));
} else {
$path = JPath::clean(JPATH_ROOT . '/' . ($root && strpos($url, $root) === 0 ? substr($url, strlen($root)) : $url));
}
return is_file($path) ? $path : false;
}
return false;
}
/**
* @param string $url url to refine
* @return string the refined url
*/
public static function fixUrl($url = ''){
return ($url[0] === '/' || strpos($url, '://') !== false) ? $url : JURI::base(true) . '/' . $url;
}
/**
* Check if need re-minify the group
*/
public static function checkRebuild ($group, $type, $path) {
$grouptime = $group['grouptime'];
$name = substr(md5($group['groupname']), 0, 5);
$groupname = $type . '-' . $name . '-' . substr($grouptime, -5) . '.' . $type;
$groupfile = $path . '/' . $groupname;
// check need rebuild
$result['filename'] = $groupname;
$result['rebuild'] = false;
if (!is_file($groupfile)) {
$result['rebuild'] = true;
// clean old files
$files = JFolder::files($path, $type . '-' . $name . '-*.' . $type);
foreach ($files as $file) {
JFile::delete($file);
}
}
return $result;
}
/**
* @param $tpl template object
* @return bool optimize success or not
*/
public static function optimizecss($tpl)
{
$outputpath = JPATH_ROOT . '/' . $tpl->getParam('t3-assets', 't3-assets') . '/css';
$outputurl = JURI::root(true) . '/' . $tpl->getParam('t3-assets', 't3-assets') . '/css';
if (!JFile::exists($outputpath)){
JFolder::create($outputpath);
@chmod($outputpath, 0755);
}
if (!is_writeable($outputpath)) {
return false;
}
//prepare config
self::prepare($tpl);
$doc = JFactory::getDocument();
//======================= Group css ================= //
$mediagroup = array();
$cssgroups = array();
$stylesheets = array();
$ielimit = 4095;
$selcounts = 0;
$regex = '/\{.+?\}|,/s'; //selector counter
$csspath = '';
// group css into media
$mediagroup['all'] = array();
$mediagroup['screen'] = array();
foreach ($doc->_styleSheets as $url => $stylesheet) {
$media = $stylesheet['media'] ? $stylesheet['media'] : 'all';
if (empty($mediagroup[$media])) {
$mediagroup[$media] = array();
}
$mediagroup[$media][$url] = $stylesheet;
}
foreach ($mediagroup as $media => $group) {
$stylesheets = array(); // empty - begin a new group
foreach ($group as $url => $stylesheet) {
$url = self::fixUrl($url);
if ($stylesheet['mime'] == 'text/css' && ($csspath = self::cssPath($url))) {
$stylesheet['path'] = $csspath;
$stylesheet['data'] = file_get_contents($csspath);
$selcount = preg_match_all($regex, $stylesheet['data'], $matched);
if(!$selcount) {
$selcount = 1; //just for sure
}
//if we found an @import rule or reach IE limit css selector count, break into the new group
if (preg_match('#@import\s+.+#', $stylesheet['data']) || $selcounts + $selcount >= $ielimit) {
if(count($stylesheets)){
$cssgroup = array();
$groupname = array();
$grouptime = 0;
foreach ( $stylesheets as $gurl => $gsheet ) {
$cssgroup[$gurl] = $gsheet;
$groupname[] = $gurl;
$ftime = @filemtime($gsheet['path']);
if ($ftime > $grouptime) $grouptime = $ftime;
}
$cssgroup['groupname'] = implode('', $groupname);
$cssgroup['grouptime'] = $grouptime;
$cssgroup['media'] = $media;
$cssgroups[] = $cssgroup;
}
$stylesheets = array($url => $stylesheet); // empty - begin a new group
$selcounts = $selcount;
} else {
$stylesheets[$url] = $stylesheet;
$selcounts += $selcount;
}
} else {
// first get all the stylsheets up to this point, and get them into
// the items array
if(count($stylesheets)){
$cssgroup = array();
$groupname = array();
$grouptime = 0;
foreach ( $stylesheets as $gurl => $gsheet ) {
$cssgroup[$gurl] = $gsheet;
$groupname[] = $gurl;
$ftime = @filemtime($gsheet['path']);
if ($ftime > $grouptime) $grouptime = $ftime;
}
$cssgroup['groupname'] = implode('', $groupname);
$cssgroup['grouptime'] = $grouptime;
$cssgroup['media'] = $media;
$cssgroups[] = $cssgroup;
}
//mark ignore current stylesheet
$cssgroup = array($url => $stylesheet, 'ignore' => true);
$cssgroups[] = $cssgroup;
$stylesheets = array(); // empty - begin a new group
}
}
if(count($stylesheets)){
$cssgroup = array();
$groupname = array();
$grouptime = 0;
foreach ( $stylesheets as $gurl => $gsheet ) {
$cssgroup[$gurl] = $gsheet;
$groupname[] = $gurl;
$ftime = @filemtime($gsheet['path']);
if ($ftime > $grouptime) $grouptime = $ftime;
}
$cssgroup['groupname'] = implode('', $groupname);
$cssgroup['grouptime'] = $grouptime;
$cssgroup['media'] = $media;
$cssgroups[] = $cssgroup;
}
}
//======================= Group css ================= //
$output = array();
foreach ($cssgroups as $cssgroup) {
if(isset($cssgroup['ignore'])){
unset($cssgroup['ignore']);
unset($cssgroup['groupname']);
unset($cssgroup['media']);
foreach ($cssgroup as $furl => $fsheet) {
$output[$furl] = $fsheet;
}
} else {
$rebuildCheck = self::checkRebuild($cssgroup, 'css', $outputpath);
$media = $cssgroup['media'];
unset($cssgroup['groupname']);
unset($cssgroup['grouptime']);
unset($cssgroup['media']);
$groupname = $rebuildCheck['filename'];
if($rebuildCheck['rebuild']){
$groupfile = $outputpath . '/' . $groupname;
$cssdata = array();
foreach ($cssgroup as $furl => $fsheet) {
$cssdata[] = "\n\n/*===============================";
$cssdata[] = $furl;
$cssdata[] = "================================================================================*/";
$cssmin = self::minifyCss($fsheet['data']);
$cssmin = T3Path::updateUrl($cssmin, T3Path::relativePath($outputurl, dirname($furl)));
$cssdata[] = $cssmin;
}
$cssdata = implode("\n", $cssdata);
if (!JFile::write($groupfile, $cssdata)) {
// cannot write file, ignore minify
return false;
}
$grouptime = @filemtime($groupfile);
@chmod($groupfile, 0644);
}
$output[$outputurl . '/' . $groupname] = array(
'mime' => 'text/css',
'media' => $media == 'all' ? NULL : $media,
'attribs' => array()
);
}
}
//apply the change make change
$doc->_styleSheets = $output;
}
/**
* Optimize javascript
* @param $tpl
* @return bool
*/
public static function optimizejs($tpl){
$outputpath = JPATH_ROOT . '/' . $tpl->getParam('t3-assets', 't3-assets') . '/js';
$outputurl = JURI::root(true) . '/' . $tpl->getParam('t3-assets', 't3-assets') . '/js';
if (!JFile::exists($outputpath)){
JFolder::create($outputpath);
@chmod($outputpath, 0755);
}
if (!is_writeable($outputpath)) {
return false;
}
//prepare config
self::prepare($tpl);
$doc = JFactory::getDocument();
//======================= Group css ================= //
$jsgroups = array();
$scripts = array();
foreach ($doc->_scripts as $url => $script) {
$url = self::fixUrl($url);
if ($script['mime'] == 'text/javascript' && ($jspath = self::jsPath($url))) {
$script['path'] = $jspath;
$script['data'] = file_get_contents($jspath);
$scripts[$url] = $script;
} else {
// first get all the stylsheets up to this point, and get them into
// the items array
if(count($scripts)){
$jsgroup = array();
$groupname = array();
$grouptime = 0;
foreach ( $scripts as $gurl => $gsheet ) {
$jsgroup[$gurl] = $gsheet;
$groupname[] = $gurl;
$ftime = @filemtime($gsheet['path']);
if ($ftime > $grouptime) $grouptime = $ftime;
}
$jsgroup['groupname'] = implode('', $groupname);
$jsgroup['grouptime'] = $grouptime;
$jsgroups[] = $jsgroup;
}
//mark ignore current script
$jsgroup = array($url => $script, 'ignore' => true);
$jsgroups[] = $jsgroup;
$scripts = array(); // empty - begin a new group
}
}
if(count($scripts)){
$jsgroup = array();
$groupname = array();
$grouptime = 0;
foreach ( $scripts as $gurl => $gsheet ) {
$jsgroup[$gurl] = $gsheet;
$groupname[] = $gurl;
$ftime = @filemtime($gsheet['path']);
if ($ftime > $grouptime) $grouptime = $ftime;
}
$jsgroup['groupname'] = implode('', $groupname);
$jsgroup['grouptime'] = $grouptime;
$jsgroups[] = $jsgroup;
}
//======================= Group js ================= //
$output = array();
foreach ($jsgroups as $jsgroup) {
if(isset($jsgroup['ignore'])){
unset($jsgroup['ignore']);
foreach ($jsgroup as $furl => $fsheet) {
$output[$furl] = $fsheet;
}
} else {
$rebuildCheck = self::checkRebuild($jsgroup, 'js', $outputpath);
unset($jsgroup['groupname']);
unset($jsgroup['grouptime']);
$groupname = $rebuildCheck['filename'];
if($rebuildCheck['rebuild']){
$groupfile = $outputpath . '/' . $groupname;
$jsdata = array();
foreach ($jsgroup as $furl => $fsheet) {
$jsdata[] = "\n\n/*===============================";
$jsdata[] = $furl;
$jsdata[] = "================================================================================*/;";
$jsmin = $fsheet['data'];
//already minify?
if(!preg_match('@.*\.min\.js.*@', $furl)){
$jsmin = self::minifyJs($fsheet['data']);
//$jsmin = T3Path::updateUrl($jsmin, T3Path::relativePath($outputurl, dirname($furl)));
}
$jsdata[] = $jsmin;
}
$jsdata = implode("\n", $jsdata);
if (!JFile::write($groupfile, $jsdata)) {
// cannot write file, ignore optimize
return false;
}
$grouptime = @filemtime($groupfile);
@chmod($groupfile, 0644);
}
$output[$outputurl . '/' . $groupname] = array(
'mime' => 'text/javascript',
'defer' => false,
'async' => false
);
}
}
//apply the change make change
$doc->_scripts = $output;
}
}
?>
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