getStorage can also return null

Signed-off-by: Robin Appelman <robin@icewind.nl>

apps/encryption/lib/Crypto/Encryption.php

@@ -435,7 +435,7 @@ class Encryption implements IEncryptionModule {
 	public function shouldEncrypt($path) {
 		if ($this->util->shouldEncryptHomeStorage() === false) {
 			$storage = $this->util->getStorage($path);
-			if ($storage->instanceOfStorage('\OCP\Files\IHomeStorage')) {
+			if ($storage && $storage->instanceOfStorage('\OCP\Files\IHomeStorage')) {
 				return false;
 			}
 		}

apps/encryption/lib/Util.php

@@ -191,7 +191,7 @@ class Util {
 	 * get storage of path
 	 *
 	 * @param string $path
-	 * @return \OC\Files\Storage\Storage
+	 * @return \OC\Files\Storage\Storage|null
 	 */
 	public function getStorage($path) {
 		return $this->files->getMount($path)->getStorage();

lib/private/Files/Filesystem.php

@@ -312,7 +312,7 @@ class Filesystem {
 	 * get the storage mounted at $mountPoint
 	 *
 	 * @param string $mountPoint
-	 * @return \OC\Files\Storage\Storage
+	 * @return \OC\Files\Storage\Storage|null
 	 */
 	public static function getStorage($mountPoint) {
 		if (!self::$mounts) {

lib/private/Files/Mount/MountPoint.php

@@ -39,7 +39,7 @@ use OCP\ILogger;
 
 class MountPoint implements IMountPoint {
 	/**
-	 * @var \OC\Files\Storage\Storage $storage
+	 * @var \OC\Files\Storage\Storage|null $storage
 	 */
 	protected $storage = null;
 	protected $class;
@@ -167,7 +167,7 @@ class MountPoint implements IMountPoint {
 	}
 
 	/**
-	 * @return \OC\Files\Storage\Storage
+	 * @return \OC\Files\Storage\Storage|null
 	 */
 	public function getStorage() {
 		if (is_null($this->storage)) {

lib/private/Files/Node/Folder.php

@@ -494,7 +494,7 @@ class Folder extends Node implements \OCP\Files\Folder {
 		$mounts[] = $this->getMountPoint();
 
 		$mounts = array_filter($mounts, function (IMountPoint $mount) {
-			return $mount->getStorage();
+			return $mount->getStorage() !== null;
 		});
 		$storageIds = array_map(function (IMountPoint $mount) {
 			return $mount->getStorage()->getCache()->getNumericStorageId();

lib/public/Files/Mount/IMountPoint.php

@@ -48,7 +48,7 @@ interface IMountPoint {
 	/**
 	 * Get the storage that is mounted
 	 *
-	 * @return \OC\Files\Storage\Storage
+	 * @return \OC\Files\Storage\Storage|null
 	 * @since 8.0.0
 	 */
 	public function getStorage();