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Your IP : 216.73.216.152
<?php
/**
* JCH Optimize - Aggregate and minify external resources for optmized downloads
*
* @author Samuel Marshall <sdmarshall73@gmail.com>
* @copyright Copyright (c) 2010 Samuel Marshall
* @license GNU/GPLv3, See LICENSE file
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* If LICENSE file missing, see <http://www.gnu.org/licenses/>.
*/
defined('_JCH_EXEC') or die('Restricted access');
/**
* Some basic utility functions required by the plugin and shared by class
*
*/
class JchOptimizeBase
{
protected $sBodyHtml = '';
protected $sHeadHtml = '';
/**
* Search area used to find js and css files to remove
*
* @return string
*/
public function getHeadHtml()
{
if ($this->sHeadHtml == '')
{
$sHeadRegex = $this->getHeadRegex();
if (preg_match($sHeadRegex, $this->sHtml, $aHeadMatches) === FALSE || empty($aHeadMatches))
{
throw new Exception('An error occured while trying to find the <head> tags in the HTML document. Make sure your template has <head> and </head>');
}
$this->sHeadHtml = $aHeadMatches[0];
}
return $this->sHeadHtml;
}
/**
* Fetches HTML to be sent to browser
*
* @return string
*/
public function getHtml()
{
$sHtml = preg_replace($this->getHeadRegex(), JchOptimizeHelper::cleanReplacement($this->sHeadHtml), $this->sHtml, 1);
if (is_null($sHtml) || $sHtml == '')
{
throw new Exception('Error occured while trying to get html');
}
return $sHtml;
}
/**
* Determines if file requires http protocol to get contents (Not allowed)
*
* @param string $sUrl
* @return boolean
*/
public function isHttpAdapterAvailable($sUrl)
{
return !(preg_match('#^(?:http|//)#i', $sUrl) && !JchOptimizeUrl::isInternal($sUrl)
|| $this->isPHPFile($sUrl));
}
/**
* Regex for head search area
*
* @return string
*/
public function getHeadRegex()
{
return '#<head\b[^>]*+>(?><?[^<]*+)*?</head>#i';
}
/**
*
* @param type $sUrl
* @return type
*/
public function isPHPFile($sUrl)
{
return preg_match('#\.php|^(?![^?\#]*\.(?:css|js|png|jpe?g|gif|bmp)(?:[?\#]|$)).++#i', $sUrl);
}
/**
*
* @return boolean
*/
public function excludeDeclaration($sType)
{
return TRUE;
}
/**
*
* @return boolean
*/
public function runCookieLessDomain()
{
return FALSE;
}
/**
*
* @return boolean
*/
public function lazyLoadImages()
{
return FALSE;
}
/**
* Regex for body section in Html
*
* @return string
*/
public function getBodyRegex()
{
return '#(?><?[^<]*+(<script\b[^>]*+>(?><?[^<]*+)*?</script\s*+>)?)*?\K<body\b[^>]*+>.*</body\*?>#si';
}
}