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<?php
/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license https://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)
{
static $cachedCacheBuster = null;
if (empty($cachedCacheBuster) || $pluginNames !== false) {
$masterFile = PIWIK_INCLUDE_PATH . '/.git/refs/heads/master';
$currentGitHash = '';
$manager = Manager::getInstance();
$plugins = !$pluginNames ? $manager->getActivatedPlugins() : $pluginNames;
sort($plugins);
$pluginsInfo = '';
foreach ($plugins as $pluginName) {
if ($manager->isPluginLoaded($pluginName)) {
$plugin = $manager->getLoadedPlugin($pluginName);
$pluginsInfo .= $plugin->getPluginName() . $plugin->getVersion() . ',';
}
}
$cacheBuster = md5($pluginsInfo . PHP_VERSION . Version::VERSION . trim($currentGitHash ?: ''));
if ($pluginNames !== false) {
return $cacheBuster;
}
$cachedCacheBuster = $cacheBuster;
}
return $cachedCacheBuster;
}
/**
* @param string $content
* @return string
*/
public function md5BasedCacheBuster($content)
{
return md5($content);
}
}
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