59 lines
1.5 KiB
PHP
59 lines
1.5 KiB
PHP
<?php
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abstract class OC_Minimizer {
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public function getLastModified($files) {
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$last_modified = 0;
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foreach($files as $file_info) {
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$file = $file_info[0] . '/' . $file_info[2];
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$filemtime = filemtime($file);
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if ($filemtime > $last_modified) {
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$last_modified = $filemtime;
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}
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}
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return $last_modified;
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}
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abstract public function minimizeFiles($files);
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public function output($files, $cache_key) {
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header('Content-Type: '.$this->contentType);
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OC_Response::enableCaching();
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$last_modified = $this->getLastModified($files);
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OC_Response::setLastModifiedHeader($last_modified);
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$gzout = false;
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$cache = OC_Cache::getGlobalCache();
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if (!OC_Request::isNoCache() && (!defined('DEBUG') || !DEBUG)){
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$gzout = $cache->get($cache_key.'.gz');
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if ($gzout) {
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OC_Response::setETagHeader(md5($gzout));
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}
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}
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if (!$gzout) {
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$out = $this->minimizeFiles($files);
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$gzout = gzencode($out);
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OC_Response::setETagHeader(md5($gzout));
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$cache->set($cache_key.'.gz', $gzout);
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}
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if ($encoding = OC_Request::acceptGZip()) {
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header('Content-Encoding: '.$encoding);
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$out = $gzout;
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} else {
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$out = gzdecode($gzout);
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}
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header('Content-Length: '.strlen($out));
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echo $out;
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}
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}
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if (!function_exists('gzdecode')) {
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function gzdecode($data,$maxlength=null,&$filename='',&$error='')
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{
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if (strcmp(substr($data,0,9),"\x1f\x8b\x8\0\0\0\0\0\0")) {
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return null; // Not the GZIP format we expect (See RFC 1952)
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}
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return gzinflate(substr($data,10,-8));
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}
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}
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