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<?php
/**
* Piwik - free/libre analytics platform
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
* @method static \Piwik\AssetManager\UIAssetCacheBuster getInstance()
*/
namespace Piwik\AssetManager;
use Piwik\Plugin\Manager;
use Piwik\Singleton;
use Piwik\Version;
class UIAssetCacheBuster extends Singleton
{
/**
* Cache buster based on
* - Piwik version
* - Loaded plugins (name and version)
* - Super user salt
* - Latest
*
* @param string[] $pluginNames
* @return string
*/
public function piwikVersionBasedCacheBuster($pluginNames = false)
{
$masterFile = PIWIK_INCLUDE_PATH . '/.git/refs/heads/master';
$currentGitHash = file_exists($masterFile) ? @file_get_contents($masterFile) : null;
$pluginNames = !$pluginNames ? Manager::getInstance()->getLoadedPluginsName() : $pluginNames;
sort($pluginNames);
$pluginsInfo = '';
foreach ($pluginNames as $pluginName) {
$plugin = Manager::getInstance()->getLoadedPlugin($pluginName);
$pluginsInfo .= $plugin->getPluginName() . $plugin->getVersion() . ',';
}
$cacheBuster = md5($pluginsInfo . PHP_VERSION . Version::VERSION . trim($currentGitHash));
return $cacheBuster;
}
/**
* @param string $content
* @return string
*/
public function md5BasedCacheBuster($content)
{
return md5($content);
}
}
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