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Created
Sat, Feb 22, 4:21 PM

in-portal
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Index: branches/5.1.x/core/units/helpers/minifiers/minify_helper.php
===================================================================
--- branches/5.1.x/core/units/helpers/minifiers/minify_helper.php (revision 14116)
+++ branches/5.1.x/core/units/helpers/minifiers/minify_helper.php (revision 14117)
@@ -1,263 +1,263 @@
<?php
/**
* @version $Id$
* @package In-Portal
* @copyright Copyright (C) 1997 - 2010 Intechnic. All rights reserved.
* @license GNU/GPL
* In-Portal is Open Source software.
* This means that this software may have been modified pursuant
* the GNU General Public License, and as distributed it includes
* or is derivative of works licensed under the GNU General Public License
* or other free or open source software licenses.
* See http://www.in-portal.org/license for copyright notices and details.
*/
defined('FULL_PATH') or die('restricted access!');
class MinifyHelper extends kHelper {
/**
* Debug mode mark
*
* @var bool
*/
var $debugMode = false;
/**
* Path to compress information file
*
* @var string
*/
var $infoFile = '';
/**
* Compress information
*
* @var Array
*/
var $compressInfo = Array ();
function MinifyHelper()
{
parent::kHelper();
$this->debugMode = $this->Application->isDebugMode(false);
$this->infoFile = WRITEABLE . '/cache/compress_info.txt';
if ( file_exists($this->infoFile) ) {
$this->compressInfo = unserialize( file_get_contents($this->infoFile) );
}
}
/**
* When used as non-block tag, then compress given files and return url to result
*
* @param Array $files
* @return string
*/
function CompressScriptTag($params)
{
// put to queue
if (array_key_exists('to', $params)) {
$files = $this->Application->GetVar($params['to'], '');
$this->Application->SetVar($params['to'], $files . '|' . $params['files']);
return '';
}
if (array_key_exists('from', $params)) {
// get from queue
$files = $this->Application->GetVar($params['from']);
}
else {
// get from tag
$files = $params['files'];
}
$files = $this->_getTemplatePaths( array_map('trim', explode('|', $files)) );
$extension = pathinfo($files[0], PATHINFO_EXTENSION);
$hash = ($this->debugMode ? 'd' : 'c') . '_' . $this->_getHash($files);
$file_mask = 'cache/' . $hash . '_%s.' . $extension;
$was_compressed = array_key_exists($hash, $this->compressInfo);
if ($was_compressed) {
$current_file = WRITEABLE . '/' . sprintf($file_mask, $this->compressInfo[$hash]);
if (!file_exists($current_file)) {
// when info exists, but file doesn't -> re-compress
$was_compressed = false;
}
if ($this->debugMode) {
// check if any of listed files was changed since compressed file was created (only, when in debug mode)
foreach ($files as $file) {
if (filemtime($file) > $this->compressInfo[$hash]) {
$was_compressed = false;
break;
}
}
}
}
if (!$was_compressed) {
$string = '';
$path_length = strlen(FULL_PATH) + 1;
foreach ($files as $file) {
// add filename before for easier debugging
if ($this->debugMode) {
$string .= '/* === File: ' . substr($file, $path_length) . ' === */' . "\n";
$string .= '/* ' . str_repeat('=', strlen(substr($file, $path_length)) + 14) . ' */' . "\n\n";
}
// add file content
$string .= file_get_contents($file) . "\n\n";
}
// remove previous version of compressed file
if (isset($current_file)) {
if (file_exists($current_file)) {
unlink($current_file);
}
}
// replace templates base
$templates_base = $this->Application->ProcessParsedTag('m', 'TemplatesBase', Array ());
$templates_base = preg_replace('/^' . preg_quote($this->Application->BaseURL(), '/') . '/', BASE_PATH . '/', $templates_base);
$string = str_replace('@templates_base@', rtrim($templates_base, '/'), $string);
// compress collected data
$this->compressInfo[$hash] = adodb_mktime();
if (!$this->debugMode) {
// don't compress merged js/css file in debug mode to allow js/css debugging
$this->compressString($string, $extension);
}
// save compressed file
$fp = fopen(WRITEABLE . '/' . sprintf($file_mask, $this->compressInfo[$hash]), 'w');
fwrite($fp, $string);
fclose($fp);
$this->_saveInfo();
}
// got compressed file -> use it
return $this->Application->BaseURL( str_replace(DIRECTORY_SEPARATOR, '/', WRITEBALE_BASE)) . sprintf($file_mask, $this->compressInfo[$hash]);
}
/**
* Returns hash string based on given files
*
* @param Array $files
* @return int
*/
function _getHash($files)
{
$hash = $files;
if ($this->Application->isAdmin) {
array_unshift($hash, 'A:1');
}
else {
array_unshift($hash, 'A:0;T:' . $this->Application->GetVar('m_theme'));
}
return crc32( implode('|', $hash) );
}
/**
* Saves file with compress information
*
*/
function _saveInfo()
{
$fp = fopen($this->infoFile, 'w');
fwrite($fp, serialize($this->compressInfo));
fclose($fp);
}
/**
* Deletes compression info file
*
* @todo also delete all listed there files
*/
function delete()
{
if (file_exists($this->infoFile)) {
unlink($this->infoFile);
}
}
/**
* Compress $string based on $extension
*
* @param string $string
* @param string $extension
*/
function compressString(&$string, $extension)
{
$tmp_file = tempnam('/tmp', 'to_compress_');
$fp = fopen($tmp_file, 'w');
fwrite($fp, $string);
fclose($fp);
$command = 'java -jar ' . dirname(__FILE__) . DIRECTORY_SEPARATOR . 'yuicompressor-2.4.2.jar --type ' . $extension . ' --charset utf-8 ' . $tmp_file;
$compressed_string = shell_exec($command);
unlink($tmp_file);
- if (!is_null($compressed_string)) {
+ if (!is_null($compressed_string) && $compressed_string) {
$string = $compressed_string;
return ;
}
// failed to compress using YUICompressor (maybe java not installed)
if ($extension == 'js') {
$minifier =& $this->Application->makeClass('JsMinifyHelper');
/* @var $minifier JsMinifyHelper */
$string = $minifier->minify($string);
}
elseif ($extension == 'css') {
$minifier =& $this->Application->makeClass('CssMinifyHelper');
/* @var $minifier CssMinifyHelper */
$string = $minifier->minify($string);
}
}
/**
* Get full paths on disk for each of given templates
*
* @param Array $templates
* @return Array
*/
function _getTemplatePaths($templates)
{
$ret = Array ();
$reg_exp = '/^' . preg_quote($this->Application->BaseURL(), '/') . '(.*)/';
foreach ($templates as $template) {
if (!$template) {
continue;
}
if (preg_match($reg_exp, $template, $regs)) {
// full url (from current domain) to a file
$path = FULL_PATH . '/' . $regs[1];
}
else {
list ($path, $module_filename) = $this->Application->TemplatesCache->GetTemplatePaths($template);
$path .= DIRECTORY_SEPARATOR . $module_filename;
}
$ret[] = $path;
}
return $ret;
}
}
\ No newline at end of file

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