Setup root FS for multibucket object storage

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

diff --git a/lib/private/legacy/util.php b/lib/private/legacy/util.php
index a1e6f2fe7023ec0627725e2622dd244dc1c25936..ac6c47b189cf936ab04b036978fc128ce132577a 100644 (file)
--- a/lib/private/legacy/util.php
+++ b/lib/private/legacy/util.php
@@ -119,6 +119,46 @@ class OC_Util {
                }
        }
 
+       /**
+        * mounting an object storage as the root fs will in essence remove the
+        * necessity of a data folder being present.
+        *
+        * @param array $config containing 'class' and optional 'arguments'
+        */
+       private static function initObjectStoreMultibucketRootFS($config) {
+               // check misconfiguration
+               if (empty($config['class'])) {
+                       \OCP\Util::writeLog('files', 'No class given for objectstore', \OCP\Util::ERROR);
+               }
+               if (!isset($config['arguments'])) {
+                       $config['arguments'] = array();
+               }
+
+               // instantiate object store implementation
+               $name = $config['class'];
+               if (strpos($name, 'OCA\\') === 0 && substr_count($name, '\\') >= 2) {
+                       $segments = explode('\\', $name);
+                       OC_App::loadApp(strtolower($segments[1]));
+               }
+
+               if (!isset($config['arguments']['bucket'])) {
+                       $config['arguments']['bucket'] = '';
+               }
+               // put the root FS always in first bucket for multibucket configuration
+               $config['arguments']['bucket'] .= '0';
+
+               $config['arguments']['objectstore'] = new $config['class']($config['arguments']);
+               // mount with plain / root object store implementation
+               $config['class'] = '\OC\Files\ObjectStore\ObjectStoreStorage';
+
+               // mount object storage as root
+               \OC\Files\Filesystem::initMountManager();
+               if (!self::$rootMounted) {
+                       \OC\Files\Filesystem::mount($config['class'], $config['arguments'], '/');
+                       self::$rootMounted = true;
+               }
+       }
+
        /**
         * Can be set up
         *
@@ -215,7 +255,12 @@ class OC_Util {
 
                //check if we are using an object storage
                $objectStore = \OC::$server->getSystemConfig()->getValue('objectstore', null);
-               if (isset($objectStore)) {
+               $objectStoreMultibucket = \OC::$server->getSystemConfig()->getValue('objectstore_multibucket', null);
+
+               // use the same order as in ObjectHomeMountProvider
+               if (isset($objectStoreMultibucket)) {
+                       self::initObjectStoreMultibucketRootFS($objectStoreMultibucket);
+               } elseif (isset($objectStore)) {
                        self::initObjectStoreRootFS($objectStore);
                } else {
                        self::initLocalStorageRootFS();