merge

www/analytics/core/AssetManager/UIAssetCacheBuster.php

@@ -0,0 +1,54 @@
+<?php
+/**
+ * Piwik - Open source web analytics
+ *
+ * @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);
+    }
+}