mirror of
https://github.com/Lastorder-DC/rhymix.git
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8103a9cc01
git-svn-id: http://xe-core.googlecode.com/svn/sandbox@7435 201d5d3c-b55e-5fd7-737f-ddc643e51545
93 lines
3.4 KiB
PHP
93 lines
3.4 KiB
PHP
<?php
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/**
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* @class Optimizer
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* @author zero (zero@nzeo.com)
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* @brief class designed to be used to merge mutiple JS/CSS files into one file to shorten time taken for transmission.
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*
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**/
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class Optimizer {
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var $cache_path = "./files/cache/optimized/";
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var $script_file = "./common/script.php?l=%s&t=.%s";
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/**
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* @brief Constructor which check if a directory, 'optimized' exists in designated path. If not create a new one
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**/
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function Optimizer() {
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if(!is_dir($this->cache_path)) {
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FileHandler::makeDir($this->cache_path);
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}
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}
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/**
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* @brief file that removes 'optimized' in a given array
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* @param[in] $files an array to be modified
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**/
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function _getOptimizedRemoved($files) {
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foreach($files as $key => $val) unset($files[$key]['optimized']);
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return $files;
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}
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/**
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* @brief method that optimizes a given file and returns a resultant file
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* @param[in] source_files an array of source files to be optimized
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* @param[in] type a type of source file, either js or css.
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* @return Returns a optimized file
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**/
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function getOptimizedFiles($source_files, $type = "js") {
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if(!is_array($source_files) || !count($source_files)) return;
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// 관리자 설정시 설정이 되어 있지 않으면 패스
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// 캐시 디렉토리가 없으면 실행하지 않음
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$db_info = Context::getDBInfo();
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if($db_info->use_optimizer == 'N' || !is_dir($this->cache_path)) return $this->_getOptimizedRemoved($source_files);
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if(!count($source_files)) return;
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$files = array();
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foreach($source_files as $key => $file) {
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if(!$file || !$file['file'] || !file_exists($file['file'])) continue;
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$file['file'] = $source_files[$key]['file'] = str_replace("\\","/",$file['file']);
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if(empty($file['optimized']) || preg_match('/^https?:\/\//i', $file['file']) ) $files[] = $file;
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else{
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$targets[] = $file;
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}
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}
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if(!count($targets)) return $this->_getOptimizedRemoved($files);
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$list_file_hash = md5(join(' ', $targets));
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$list_file = FileHandler::getRealPath($this->cache_path . $list_file_hash);
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if(!file_exists($list_file)){
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$str = '<?php $f=array();';
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foreach($targets as $file) $str .= '$f[]="'. $file['file'] . '";';
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$str .= ' return $f; ?>';
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FileHandler::writeFile($list_file, $str);
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}
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array_unshift($files, array('file' => sprintf($this->script_file, $list_file_hash, $type) , 'media' => 'all'));
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$files = $this->_getOptimizedRemoved($files);
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if(!count($files)) return $files;
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$url_info = parse_url(Context::getRequestUri());
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$abpath = $url_info['path'];
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foreach($files as $key => $val) {
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$file = $val['file'];
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if($file{0} == '/' || strpos($file,'://')!==false) continue;
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if(substr($file,0,2)=='./') $file = substr($file,2);
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$file = $abpath.$file;
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while(strpos($file,'/../')!==false) {
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$file = preg_replace('/\/([^\/]+)\/\.\.\//','/',$file);
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}
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$files[$key]['file'] = $file;
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}
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return $files;
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}
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}
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?>
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