From d63f5561fb793c556a307088f5e6ec7f3127106a Mon Sep 17 00:00:00 2001
From: Vincent Petry <pvince81@owncloud.com>
Date: Tue, 8 Mar 2016 11:23:20 +0100
Subject: [PATCH] Fix share mounting recursion

---
 apps/files_sharing/lib/sharedstorage.php    | 2 ++
 lib/private/files/config/usermountcache.php | 9 +++++++--
 lib/private/util.php                        | 2 +-
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/apps/files_sharing/lib/sharedstorage.php b/apps/files_sharing/lib/sharedstorage.php
index 600599d717..6998f94698 100644
--- a/apps/files_sharing/lib/sharedstorage.php
+++ b/apps/files_sharing/lib/sharedstorage.php
@@ -85,6 +85,7 @@ class Shared extends \OC\Files\Storage\Common implements ISharedStorage {
 	}
 
 	private function isValid() {
+		$this->init();
 		return ($this->sourceRootInfo->getPermissions() & Constants::PERMISSION_SHARE) === Constants::PERMISSION_SHARE;
 	}
 
@@ -566,6 +567,7 @@ class Shared extends \OC\Files\Storage\Common implements ISharedStorage {
 	}
 
 	public function getCache($path = '', $storage = null) {
+		$this->init();
 		if (!$storage) {
 			$storage = $this;
 		}
diff --git a/lib/private/files/config/usermountcache.php b/lib/private/files/config/usermountcache.php
index 58e7e9d156..78b1997278 100644
--- a/lib/private/files/config/usermountcache.php
+++ b/lib/private/files/config/usermountcache.php
@@ -24,6 +24,7 @@ namespace OC\Files\Config;
 
 use Doctrine\DBAL\Exception\UniqueConstraintViolationException;
 use OC\Files\Filesystem;
+use OCA\Files_Sharing\SharedMount;
 use OCP\DB\QueryBuilder\IQueryBuilder;
 use OCP\Files\Config\ICachedMountInfo;
 use OCP\Files\Config\IUserMountCache;
@@ -75,12 +76,16 @@ class UserMountCache implements IUserMountCache {
 	public function registerMounts(IUser $user, array $mounts) {
 		// filter out non-proper storages coming from unit tests
 		$mounts = array_filter($mounts, function (IMountPoint $mount) {
-			return $mount->getStorage() && $mount->getStorage()->getCache();
+			return $mount instanceof SharedMount || $mount->getStorage() && $mount->getStorage()->getCache();
 		});
 		/** @var ICachedMountInfo[] $newMounts */
 		$newMounts = array_map(function (IMountPoint $mount) use ($user) {
 			$storage = $mount->getStorage();
-			$rootId = (int)$storage->getCache()->getId('');
+			if ($storage->instanceOfStorage('\OC\Files\Storage\Shared')) {
+				$rootId = (int)$storage->getShare()['file_source'];
+			} else {
+				$rootId = (int)$storage->getCache()->getId('');
+			}
 			$storageId = (int)$storage->getStorageCache()->getNumericId();
 			// filter out any storages which aren't scanned yet since we aren't interested in files from those storages (yet)
 			if ($rootId === -1) {
diff --git a/lib/private/util.php b/lib/private/util.php
index 6884e55c24..f6191b96aa 100644
--- a/lib/private/util.php
+++ b/lib/private/util.php
@@ -165,7 +165,7 @@ class OC_Util {
 
 		// install storage availability wrapper, before most other wrappers
 		\OC\Files\Filesystem::addStorageWrapper('oc_availability', function ($mountPoint, $storage) {
-			if (!$storage->isLocal()) {
+			if (!$storage->instanceOfStorage('\OC\Files\Storage\Shared') && !$storage->isLocal()) {
 				return new \OC\Files\Storage\Wrapper\Availability(['storage' => $storage]);
 			}
 			return $storage;