Correct parent folders' ETags for all users with access to a shared file

1 files changed, 23 insertions, 0 deletions

diff --git a/lib/public/share.php b/lib/public/share.php
index c0f35333e83..3d157b1a5f9 100644
--- a/lib/public/share.php
+++ b/lib/public/share.php
@@ -198,6 +198,29 @@ class Share {
 	}
 
 	/**
+	* Get all users an item is shared with
+	* @param string Item type
+	* @param string Item source
+	* @param string Owner
+	* @param bool Include collections
+	* @return Return array of users
+	*/
+	public static function getUsersItemShared($itemType, $itemSource, $uidOwner, $includeCollections = false) {
+		$users = array();
+		$items = self::getItems($itemType, $itemSource, null, null, $uidOwner, self::FORMAT_NONE, null, -1, $includeCollections);
+		if ($items) {
+			foreach ($items as $item) {
+				if ((int)$item['share_type'] === self::SHARE_TYPE_USER) {
+					$users[] = $item['share_with'];
+				} else if ((int)$item['share_type'] === self::SHARE_TYPE_GROUP) {
+					$users = array_merge($users, \OC_Group::usersInGroup($item['share_with']));
+				}
+			}
+		}
+		return $users;
+	}
+
+	/**
 	* @brief Share an item with a user, group, or via private link
 	* @param string Item type
 	* @param string Item source