Implement password authentication mechanisms

Introduces the basic password authentication mechanism, along with a
mechanism based on ownCloud credentials stored in the user session.

Change to lib/private is an extension of PermissionsMask, as
isSharable() override was missing.

Session credentials auth mechanism now disables sharing on applied
storages, as credentials will not be available.

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/private/files/storage/wrapper/permissionsmask.php b/lib/private/files/storage/wrapper/permissionsmask.php
index 993936321d0..50c3f2a6268 100644
--- a/lib/private/files/storage/wrapper/permissionsmask.php
+++ b/lib/private/files/storage/wrapper/permissionsmask.php
@@ -65,6 +65,10 @@ class PermissionsMask extends Wrapper {
 		return $this->checkMask(Constants::PERMISSION_DELETE) and parent::isDeletable($path);
 	}
 
+	public function isSharable($path) {
+		return $this->checkMask(Constants::PERMISSION_SHARE) and parent::isSharable($parm);
+	}
+
 	public function getPermissions($path) {
 		return $this->storage->getPermissions($path) & $this->mask;
 	}