/**
  * Optimize website by aggregating css and js
  *
  */
 public function process($sHtml)
 {
     JCH_DEBUG ? JchPlatformProfiler::start('Process', TRUE) : null;
     JCH_DEBUG ? JchPlatformProfiler::start('LoadClass') : null;
     loadJchOptimizeClass(array('JchOptimizeBase', 'JchOptimizeParser', 'JchOptimizeFileRetriever', 'JchOptimizeLinkBuilder', 'JchOptimizeHelper'));
     JCH_DEBUG ? JchPlatformProfiler::stop('LoadClass', TRUE) : null;
     try {
         $oParser = new JchOptimizeParser($this->params, $sHtml, JchOptimizeFileRetriever::getInstance());
         $oLinkBuilder = new JchOptimizeLinkBuilder($oParser);
         $oLinkBuilder->insertJchLinks();
         $oParser->runCookieLessDomain();
         $oParser->lazyLoadImages();
         $this->params->set('isXhtml', $oLinkBuilder->isXhtml());
         $this->params->set('isHtml5', $oParser->isHtml5());
         $sOptimizedHtml = JchOptimizeHelper::minifyHtml($oParser->getHtml(), $this->params);
     } catch (Exception $ex) {
         JchOptimizeLogger::log($ex->getMessage(), $this->params);
         $sOptimizedHtml = $sHtml;
     }
     spl_autoload_unregister('loadJchOptimizeClass');
     JCH_DEBUG ? JchPlatformProfiler::stop('Process', TRUE) : null;
     JCH_DEBUG ? JchPlatformProfiler::attachProfiler($sOptimizedHtml) : null;
     if (version_compare(PHP_VERSION, '7', '>=')) {
         ini_set('pcre.jit', $this->jit);
     }
     return $sOptimizedHtml;
 }
        /**
         * Optimize website by aggregating css and js
         *
         */
        public function process($sHtml)
        {
                JCH_DEBUG ? JchPlatformProfiler::mark('beforeProcess plgSystem (JCH Optimize)') : null;

                loadJchOptimizeClass(array('JchOptimizeBase', 'JchOptimizeParser', 'JchOptimizeFileRetriever', 
                        'JchOptimizeLinkBuilder', 'JchOptimizeHelper'));
                
                JCH_DEBUG ? JchPlatformProfiler::mark('afterLoadClass plgSystem (JCH Optimize)') : null;
                
                try
                {
                        $oParser = new JchOptimizeParser($this->params, $sHtml, JchOptimizeFileRetriever::getInstance());

                        $oLinkBuilder = new JchOptimizeLinkBuilder($oParser);
                        $oLinkBuilder->insertJchLinks();

                        $sOptimizedHtml = JchOptimizeHelper::minifyHtml($oParser->getHtml(), $this->params);
                }
                catch (Exception $ex)
                {
                        JchOptimizeLogger::log($ex->getMessage(), $this->params);

                        $sOptimizedHtml = $sHtml;
                }

                spl_autoload_unregister('loadJchOptimizeClass');

                JCH_DEBUG ? JchPlatformProfiler::mark('afterProcess plgSystem (JCH Optimize)') : null;

                return $sOptimizedHtml;
        }
Exemple #3
0
 /**
  * 
  * @param type $oObj
  * @param type $sCss
  * @return type
  */
 public function generateAdminLinks($oObj, $sCss)
 {
     JCH_DEBUG ? JchPlatformProfiler::start('GenerateAdminLinks') : null;
     $params = clone $this->params;
     $params->set('javascript', '1');
     $params->set('css', '1');
     $params->set('excludeAllExtensions', '0');
     $params->set('css_minify', '0');
     $params->set('debug', '0');
     $params->set('bottom_js', '2');
     ##<procode>##
     $params->set('pro_phpAndExternal', '1');
     $params->set('pro_inlineScripts', '1');
     $params->set('pro_lazyload', '0');
     ##</procode>##
     $sHtml = $oObj->getOriginalHtml();
     $oParser = new JchOptimizeParser($params, $sHtml, JchOptimizeFileRetriever::getInstance());
     $aLinks = $oParser->getReplacedFiles();
     if ($sCss == '' && !empty($aLinks['css'][0])) {
         $oCombiner = new JchOptimizeCombiner($params, $this->bBackend);
         $oCssParser = new JchOptimizeCssParser($params, $this->bBackend);
         $oCombiner->combineFiles($aLinks['css'][0], 'css', $oCssParser);
         $sCss = $oCombiner->css;
     }
     $oSpriteGenerator = new JchOptimizeSpriteGenerator($params);
     $aLinks['images'] = $oSpriteGenerator->processCssUrls($sCss, TRUE);
     ##<procode>##
     $sRegex = $oParser->getLazyLoadRegex();
     preg_match_all($sRegex, $oParser->getBodyHtml(), $aMatches);
     $aLinks['lazyload'] = $aMatches[1];
     ##</procode>##
     JCH_DEBUG ? JchPlatformProfiler::stop('GenerateAdminLinks', TRUE) : null;
     return $aLinks;
 }
Exemple #4
0
 /**
  * 
  * @param type $oObj
  * @param type $sCss
  * @return type
  */
 public function generateAdminLinks($oObj, $sCss)
 {
     JCH_DEBUG ? JchPlatformProfiler::start('GenerateAdminLinks') : null;
     $params = clone $this->params;
     $params->set('combine_files_enable', '1');
     $params->set('javascript', '1');
     $params->set('css', '1');
     $params->set('gzip', '0');
     $params->set('css_minify', '0');
     $params->set('js_minify', '0');
     $params->set('html_minify', '0');
     $params->set('defer_js', '0');
     $params->set('debug', '0');
     $params->set('bottom_js', '2');
     $params->set('includeAllExtensions', '1');
     $params->set('excludeCss', array());
     $params->set('excludeJs', array());
     $params->set('excludeCssComponents', array());
     $params->set('excludeJsComponents', array());
     $params->set('csg_exclude_images', array());
     $params->set('csg_include_images', array());
     $sHtml = $oObj->getOriginalHtml();
     $oParser = new JchOptimizeParser($params, $sHtml, JchOptimizeFileRetriever::getInstance());
     $aLinks = $oParser->getReplacedFiles();
     if ($sCss == '' && !empty($aLinks['css'][0])) {
         $oCombiner = new JchOptimizeCombiner($params, $this->bBackend);
         $oCssParser = new JchOptimizeCssParser($params, $this->bBackend);
         $oCombiner->combineFiles($aLinks['css'][0], 'css', $oCssParser);
         $sCss = $oCombiner->css;
     }
     $oSpriteGenerator = new JchOptimizeSpriteGenerator($params);
     $aLinks['images'] = $oSpriteGenerator->processCssUrls($sCss, TRUE);
     JCH_DEBUG ? JchPlatformProfiler::stop('GenerateAdminLinks', TRUE) : null;
     return $aLinks;
 }
Exemple #5
0
 /**
  * 
  * @return type
  */
 public static function getInstance()
 {
     if (!self::$instance) {
         self::$instance = new JchOptimizeFileRetriever();
     }
     return self::$instance;
 }
Exemple #6
0
 public function getOriginalHtml()
 {
     JCH_DEBUG ? JchPlatformProfiler::mark('beforeGetHtml') : null;
     $url = home_url() . '/?jchbackend=1';
     try {
         $oFileRetriever = JchOptimizeFileRetriever::getInstance();
         $response = $oFileRetriever->getFileContents($url);
         if ($oFileRetriever->response_code != 200) {
             throw new Exception(JchPlatformUtility::translate('Failed fetching front end HTML with response code ' . $oFileRetriever->response_code));
         }
         JCH_DEBUG ? JchPlatformProfiler::mark('afterGetHtml') : null;
         return $response;
     } catch (Exception $e) {
         JchOptimizeLogger::log($url . ': ' . $e->getMessage(), $this->params);
         JCH_DEBUG ? JchPlatformProfiler::mark('afterGetHtml)') : null;
         throw new RunTimeException(_('Load or refresh the front-end site first then refresh this page ' . 'to populate the multi select exclude lists.'));
     }
 }
Exemple #7
0
 /**
  * Optimize website by aggregating css and js
  *
  */
 public function process($sHtml)
 {
     JCH_DEBUG ? JchPlatformProfiler::start('Process', TRUE) : null;
     JCH_DEBUG ? JchPlatformProfiler::start('LoadClass') : null;
     loadJchOptimizeClass(array('JchOptimizeBase', 'JchOptimizeParser', 'JchOptimizeFileRetriever', 'JchOptimizeLinkBuilder', 'JchOptimizeHelper'));
     JCH_DEBUG ? JchPlatformProfiler::stop('LoadClass', TRUE) : null;
     try {
         $oParser = new JchOptimizeParser($this->params, $sHtml, JchOptimizeFileRetriever::getInstance());
         $oLinkBuilder = new JchOptimizeLinkBuilder($oParser);
         $oLinkBuilder->insertJchLinks();
         $this->params->set('xhtml', $oLinkBuilder->isXhtml());
         $sOptimizedHtml = JchOptimizeHelper::minifyHtml($oParser->getHtml(), $this->params);
     } catch (Exception $ex) {
         JchOptimizeLogger::log($ex->getMessage(), $this->params);
         $sOptimizedHtml = $sHtml;
     }
     spl_autoload_unregister('loadJchOptimizeClass');
     JCH_DEBUG ? JchPlatformProfiler::stop('Process', TRUE) : null;
     JCH_DEBUG ? JchPlatformProfiler::attachProfiler($sOptimizedHtml) : null;
     return $sOptimizedHtml;
 }
Exemple #8
0
 /**
  * 
  * @param type $oObj
  * @param type $sCss
  * @return type
  */
 public function generateAdminLinks($oObj, $sCss)
 {
     JCH_DEBUG ? JchPlatformProfiler::mark('beforeGenerateAdminLinks plgSystem (JCH Optimize)') : null;
     $params = clone $this->params;
     $params->set('javascript', '1');
     $params->set('css', '1');
     $params->set('excludeAllExtensions', '0');
     $params->set('css_minify', '0');
     $params->set('debug', '0');
     $params->set('bottom_js', '2');
     $sHtml = $oObj->getOriginalHtml();
     $oParser = new JchOptimizeParser($params, $sHtml, JchOptimizeFileRetriever::getInstance());
     $aLinks = $oParser->getReplacedFiles();
     if ($sCss == '') {
         $oCombiner = new JchOptimizeCombiner($params, $this->bBackend);
         $oCssParser = new JchOptimizeCssParser($params, $this->bBackend);
         $oCombiner->combineFiles($aLinks['css'][0], 'css', $oCssParser);
         $sCss = $oCombiner->css;
     }
     $oSpriteGenerator = new JchOptimizeSpriteGenerator($params);
     $aLinks['images'] = $oSpriteGenerator->processCssUrls($sCss, TRUE);
     JCH_DEBUG ? JchPlatformProfiler::mark('afterGenerateAdminLinks plgSystem (JCH Optimize)') : null;
     return $aLinks;
 }
Exemple #9
0
 /**
  * 
  * @staticvar string $sContents
  * @return boolean
  */
 public static function checkModRewriteEnabled($params)
 {
     $oFileRetriever = JchOptimizeFileRetriever::getInstance();
     if (!$oFileRetriever->isHttpAdapterAvailable()) {
         $params->set('htaccess', '0');
     } else {
         $oUri = JchPlatformUri::getInstance();
         $sUrl = $oUri->toString(array('scheme', 'user', 'pass', 'host', 'port')) . JchPlatformPaths::assetPath() . JchPlatformPaths::rewriteBase() . 'test_mod_rewrite';
         $sContents = $oFileRetriever->getFileContents($sUrl);
         if ($sContents == 'TRUE') {
             $params->set('htaccess', '1');
         } else {
             $params->set('htaccess', '0');
         }
     }
     JchPlatformPlugin::saveSettings($params);
 }
Exemple #10
0
 /**
  * 
  */
 private function getHttpAdapter()
 {
     if (is_null(self::$oHttpAdapter)) {
         self::$oHttpAdapter = JchPlatformHttp::getHttpAdapter();
     }
     return self::$oHttpAdapter;
 }
 /**
  * 
  * @staticvar string $sContents
  * @return boolean
  */
 public static function checkModRewriteEnabled($params)
 {
     JCH_DEBUG ? JchPlatformProfiler::start('CheckModRewriteEnabled') : null;
     $oFileRetriever = JchOptimizeFileRetriever::getInstance();
     if (!$oFileRetriever->isHttpAdapterAvailable()) {
         $params->set('htaccess', 0);
     } else {
         $oUri = JchPlatformUri::getInstance();
         $sUrl = $oUri->toString(array('scheme', 'user', 'pass', 'host', 'port')) . JchPlatformPaths::assetPath(TRUE);
         $sUrl2 = JchPlatformPaths::rewriteBase() . 'test_mod_rewrite';
         try {
             $sContents = $oFileRetriever->getFileContents($sUrl . $sUrl2);
             if ($sContents == 'TRUE') {
                 $params->set('htaccess', 1);
             } else {
                 $sContents2 = $oFileRetriever->getFileContents($sUrl . '3' . $sUrl2);
                 if ($sContents2 == 'TRUE') {
                     $params->set('htaccess', 3);
                 } else {
                     $params->set('htaccess', 0);
                 }
             }
         } catch (Exception $e) {
             $params->set('htaccess', 0);
         }
     }
     JchPlatformPlugin::saveSettings($params);
     JCH_DEBUG ? JchPlatformProfiler::stop('CheckModRewriteEnabled', TRUE) : null;
 }
Exemple #12
0
 /**
  * 
  * @staticvar string $sContents
  * @return boolean
  */
 public static function modRewriteEnabled()
 {
     if (function_exists('apache_get_modules')) {
         return in_array('mod_rewrite', apache_get_modules());
     } elseif (!ini_get('open_basedir') && function_exists('shell_exec') && file_exists('/usr/local/apache/bin/apachectl')) {
         return strpos(shell_exec('/usr/local/apache/bin/apachectl -l'), 'mod_rewrite') !== false;
     } else {
         static $sContents = '';
         if ($sContents == '') {
             $oFileRetriever = JchOptimizeFileRetriever::getInstance($GLOBALS['oParams']);
             if (!$oFileRetriever->isUrlFOpenAllowed()) {
                 return FALSE;
             }
             $sJbase = JUri::base(true);
             $sBaseFolder = $sJbase == '/' ? $sJbase : $sJbase . '/';
             $sUrl = JUri::base() . 'plugins/system/jch_optimize/assets' . $sBaseFolder . 'test_mod_rewrite';
             $sContents = $oFileRetriever->getFileContents($sUrl);
         }
         if ($sContents == 'TRUE') {
             return TRUE;
         } else {
             return FALSE;
         }
     }
 }
Exemple #13
0
 /**
  * Aggregate contents of CSS and JS files
  *
  * @param array $aUrlArray      Array of links of files
  * @param string $sType          CSS or js
  * @return string               Aggregarted contents
  * @throws Exception
  */
 public function combineFiles($aUrlArray, $sType, $oCssParser)
 {
     $sContents = '';
     $sLifetime = (int) $this->params->get('lifetime', '30') * 24 * 60 * 60;
     $this->bAsync = FALSE;
     $this->sAsyncUrl = '';
     $oFileRetriever = JchOptimizeFileRetriever::getInstance();
     foreach ($aUrlArray as $aUrl) {
         $sUrl = $this->prepareFileUrl($aUrl, $sType);
         JCH_DEBUG ? JchPlatformProfiler::start('CombineFile - ' . $sUrl) : null;
         if ($sType == 'js') {
             $sJsContents = $this->handleAsyncUrls($aUrl);
             if ($sJsContents === FALSE) {
                 continue;
             }
             $sContents .= $sJsContents;
             unset($sJsContents);
         }
         if (isset($aUrl['id']) && $aUrl['id'] != '') {
             $function = array($this, 'cacheContent');
             $args = array($aUrl, $sType, $oFileRetriever, $oCssParser, TRUE);
             $sCachedContent = JchPlatformCache::getCallbackCache($aUrl['id'], $sLifetime, $function, $args);
             $this->{$sType} .= $sCachedContent;
             if (!isset($aUrl['url']) && $this->sAsyncUrl != '' && $sType == 'js') {
                 $this->sAsyncUrl = '';
             }
             if ($this->sAsyncUrl == '') {
                 $sContents .= $this->addCommentedUrl($sType, $aUrl) . '[[JCH_' . $aUrl['id'] . ']]' . $this->sLnEnd . 'DELIMITER';
             }
         } else {
             $sContent = $this->cacheContent($aUrl, $sType, $oFileRetriever, $oCssParser, FALSE);
             $sContents .= $this->addCommentedUrl($sType, $aUrl) . $sContent . '|"LINE_END"|';
         }
         JCH_DEBUG ? JchPlatformProfiler::stop('CombineFile - ' . $sUrl, TRUE) : null;
     }
     if ($this->bAsync) {
         $sContents = $this->getLoadScript() . $sContents;
         if ($this->sAsyncUrl != '') {
             $sContents .= $this->addCommentedUrl('js', $this->sAsyncUrl) . 'loadScript("' . $this->sAsyncUrl . '", function(){});  DELIMITER';
             $this->sAsyncUrl = '';
         }
     }
     return $sContents;
 }
Exemple #14
0
 /**
  * 
  * @return type
  */
 protected function getInput()
 {
     $oFileRetriever = JchOptimizeFileRetriever::getInstance($this->getParams());
     if ($GLOBALS['bTextArea']) {
         return parent::getInput();
     }
     if (!$oFileRetriever->isUrlFOpenAllowed()) {
         $GLOBALS['bTextArea'] = TRUE;
         JFactory::getApplication()->enqueueMessage(JText::_('Your host does not have cURL or allow_url_fopen enabled. ' . 'Will use text areas instead of multiselect options for exclude settings'), 'notice');
         return parent::getInput();
     }
     try {
         $aOptions = $this->getFieldOptions();
     } catch (Exception $ex) {
         JFactory::getApplication()->enqueueMessage($ex->getMessage(), 'warning');
         return parent::getInput();
     }
     $sField = JHTML::_('select.genericlist', $aOptions, $this->name . '[]', 'class="inputbox" multiple="multiple" size="5"', 'id', 'name', $this->value, $this->id);
     return $sField;
 }
Exemple #15
0
 /**
  * Aggregate contents of CSS and JS files
  *
  * @param array $aUrlArray      Array of links of files
  * @param string $sType          CSS or js
  * @return string               Aggregarted contents
  * @throws Exception
  */
 public function combineFiles($aUrlArray, $sType, $oCssParser)
 {
     global $_PROFILER;
     JCH_DEBUG ? JchPlatformProfiler::mark('beforeCombineFiles - ' . $sType . ' plgSystem (JCH Optimize)') : null;
     $sContents = '';
     $sLifetime = (int) $this->params->get('lifetime', '30') * 24 * 60 * 60;
     $this->bAsync = FALSE;
     $this->sAsyncUrl = '';
     $this->{$sType} = '';
     $oFileRetriever = JchOptimizeFileRetriever::getInstance();
     foreach ($aUrlArray as $aUrl) {
         if ($sType == 'js') {
             $sJsContents = $this->handleAsyncUrls($aUrl);
             if ($sJsContents === FALSE) {
                 continue;
             }
             $sContents .= $sJsContents;
             unset($sJsContents);
         }
         if (isset($aUrl['id']) && $aUrl['id'] != '') {
             $function = array($this, 'cacheContent');
             $args = array($aUrl, $sType, $oFileRetriever, $oCssParser);
             $sCachedContent = JchPlatformCache::getCallbackCache($aUrl['id'], $sLifetime, $function, $args);
             $this->{$sType} .= $sCachedContent;
             if (!isset($aUrl['url']) && $this->sAsyncUrl != '' && $sType == 'js') {
                 $this->sAsyncUrl = '';
             }
             if ($this->sAsyncUrl == '') {
                 $sContents .= $this->addCommentedUrl($sType, $aUrl) . '[[JCH_' . $aUrl['id'] . ']]' . 'DELIMITER';
             }
         } else {
             $sContent = $this->cacheContent($aUrl, $sType, $oFileRetriever, $oCssParser);
             $sContents .= $this->addCommentedUrl($sType, $aUrl) . $sContent . 'DELIMITER';
         }
     }
     if ($this->bAsync) {
         $sContents = $this->getLoadScript() . $sContents;
         if ($this->sAsyncUrl != '') {
             $sContents .= $this->addCommentedUrl('js', $this->sAsyncUrl) . 'loadScript("' . $this->sAsyncUrl . '", function(){});  DELIMITER';
             $this->sAsyncUrl = '';
         }
     }
     JCH_DEBUG ? JchPlatformProfiler::mark('afterCombineFiles - ' . $sType . ' plgSystem (JCH Optimize)') : null;
     return $sContents;
 }
Exemple #16
0
 /**
  * Aggregate contents of CSS and JS files
  *
  * @param array $aUrlArray      Array of links of files
  * @param string $sType          CSS or js
  * @return string               Aggregarted contents
  * @throws Exception
  */
 public function combineFiles($aUrlArray, $sType, $oCssParser, $bCssAsync = FALSE)
 {
     global $_PROFILER;
     JCH_DEBUG ? $_PROFILER->mark('beforeCombineFiles - ' . $sType . ' plgSystem (JCH Optimize)') : null;
     $sContents = '';
     $bAsync = false;
     $sAsyncUrl = '';
     $oFileRetriever = JchOptimizeFileRetriever::getInstance($this->params);
     foreach ($aUrlArray as $aUrl) {
         $sContent = '';
         if (isset($aUrl['url'])) {
             if ($sType == 'js' && $sAsyncUrl != '') {
                 $sContents .= $this->addCommentedUrl('js', $sAsyncUrl) . 'loadScript("' . $sAsyncUrl . '", function(){});  DELIMITER';
                 $sAsyncUrl = '';
             }
             $sPath = $aUrl['path'];
             if ($sType == 'js' && $this->loadAsync($aUrl['url'])) {
                 $sAsyncUrl = $aUrl['url'];
                 $bAsync = true;
                 continue;
             } else {
                 if (!JchOptimizeHelper::fileExists($sPath)) {
                     if ($this->params->get('log', 0)) {
                         JchOptimizeLogger::log(JText::_('File not found: ' . $sPath));
                     }
                     $sFileContents = 'COMMENT_START File does not exist COMMENT_END';
                 } else {
                     JCH_DEBUG ? $_PROFILER->mark('beforegetFileContents - ' . $sPath . ' plgSystem (JCH Optimize)') : null;
                     $sFileContents = $oFileRetriever->getFileContents($sPath);
                     JCH_DEBUG ? $_PROFILER->mark('afterGetFileContents - ' . $sPath . ' plgSystem (JCH Optimize)') : null;
                 }
                 if ($sFileContents === FALSE) {
                     throw new Exception(JText::_('Failed getting file contents from ' . $sPath));
                 }
                 $sContent .= $sFileContents;
                 unset($sFileContents);
             }
         } else {
             if ($sType == 'js' && $sAsyncUrl != '') {
                 $sContents .= $this->addCommentedUrl('js', $sAsyncUrl) . 'loadScript("' . $sAsyncUrl . '", function(){' . $this->sLnEnd . $aUrl['content'] . $this->sLnEnd . '});  
                                     DELIMITER';
                 $sAsyncUrl = '';
             } else {
                 $sContent .= $aUrl['content'];
             }
         }
         if ($sType == 'css') {
             unset($oCssParser->sCssUrl);
             $oCssParser->aUrl = $aUrl;
             $sImportContent = preg_replace('#@import\\s(?:url\\()?[\'"]([^\'"]+)[\'"](?:\\))?#', '@import url($1)', $sContent);
             if (is_null($sImportContent)) {
                 if ($this->params->get('log', 0)) {
                     JchOptimizeLogger::log(JText::_('Error occured trying to parse for @imports in ' . $aUrl['url']));
                 }
                 $sImportContent = $sContent;
             }
             $sContent = $sImportContent;
             $sContent = $oCssParser->correctUrl($sContent);
             $sContent = $this->replaceImports($sContent, $aUrl);
             $sContent = $oCssParser->handleMediaQueries($sContent);
         }
         if ($sType == 'js' && $sContent != '') {
             $sContent = $this->addSemiColon($sContent);
         }
         $sContent = $this->MinifyContent($sContent, $sType, $aUrl);
         $sContents .= $this->addCommentedUrl($sType, $aUrl) . $sContent . 'DELIMITER';
         unset($sContent);
     }
     if ($bAsync) {
         $sContents = $this->getLoadScript() . $sContents;
         if ($sAsyncUrl != '') {
             $sContents .= $this->addCommentedUrl('js', $sAsyncUrl) . 'loadScript("' . $sAsyncUrl . '", function(){});  DELIMITER';
             $sAsyncUrl = '';
         }
     }
     JCH_DEBUG ? $_PROFILER->mark('afterCombineFiles - ' . $sType . ' plgSystem (JCH Optimize)') : null;
     return $sContents;
 }