From 88299ec27c209a432f925f19970e581f46fc54cd Mon Sep 17 00:00:00 2001
From: Roeland Jago Douma <roeland@famdouma.nl>
Date: Wed, 19 Oct 2016 21:27:07 +0200
Subject: [PATCH] Added to public interface

Signed-off-by: Roeland Jago Douma <roeland@famdouma.nl>
---
 .htaccess                       |  4 ----
 lib/private/Share20/Manager.php | 15 +++++++++++----
 lib/public/Share/IManager.php   | 30 ++++++++++++++++++++++++++++++
 3 files changed, 41 insertions(+), 8 deletions(-)

diff --git a/.htaccess b/.htaccess
index 26be470fd1..7bf8759e38 100644
--- a/.htaccess
+++ b/.htaccess
@@ -78,7 +78,3 @@ Options -Indexes
 <IfModule pagespeed_module>
   ModPagespeed Off
 </IfModule>
-#### DO NOT CHANGE ANYTHING ABOVE THIS LINE ####
-
-ErrorDocument 403 /core/templates/403.php
-ErrorDocument 404 /core/templates/404.php
diff --git a/lib/private/Share20/Manager.php b/lib/private/Share20/Manager.php
index ce0444a76b..d93883e95d 100644
--- a/lib/private/Share20/Manager.php
+++ b/lib/private/Share20/Manager.php
@@ -1196,17 +1196,21 @@ class Manager implements IManager {
 	 *  remote => bool
 	 * ]
 	 *
-	 * This is required for encryption/activities
+	 * This is required for encryption/activity
 	 *
 	 * @param \OCP\Files\Node $path
+	 * @param bool $recursive Should we check all parent folders as well
 	 * @return array
 	 */
-	public function getAccessList(\OCP\Files\Node $path) {
+	public function getAccessList(\OCP\Files\Node $path, $recursive = true) {
 		$owner = $path->getOwner()->getUID();
 
 		//Get node for the owner
 		$userFolder = $this->rootFolder->getUserFolder($owner);
-		$path = $userFolder->getById($path->getId())[0];
+
+		if (!$userFolder->isSubNode($path)) {
+			$path = $userFolder->getById($path->getId())[0];
+		}
 
 		$providers = $this->factory->getAllProviders();
 
@@ -1214,10 +1218,13 @@ class Manager implements IManager {
 		$shares = [];
 
 		// Collect all the shares
-		while ($path !== $userFolder) {
+		while ($path->getPath() !== $userFolder->getPath()) {
 			foreach ($providers as $provider) {
 				$shares = array_merge($shares, $provider->getSharesByPath($path));
 			}
+			if (!$recursive) {
+				break;
+			}
 			$path = $path->getParent();
 		}
 
diff --git a/lib/public/Share/IManager.php b/lib/public/Share/IManager.php
index a15020bbd6..45e0e9d80c 100644
--- a/lib/public/Share/IManager.php
+++ b/lib/public/Share/IManager.php
@@ -191,6 +191,36 @@ interface IManager {
 	 */
 	public function userDeletedFromGroup($uid, $gid);
 
+	/**
+	 * Get access list to a path. This means
+	 * all the users that can access a given path.
+	 *
+	 * Consider:
+	 * -root
+	 * |-folder1
+	 *  |-folder2
+	 *   |-fileA
+	 *
+	 * fileA is shared with user1
+	 * folder2 is shared with group2 (user4 is a member of group2)
+	 * folder1 is shared with user2
+	 *
+	 * Then the access list will to '/folder1/folder2/fileA' is:
+	 * [
+	 *  users => ['user1', 'user2', 'user4'],
+	 *  public => bool
+	 *  remote => bool
+	 * ]
+	 *
+	 * This is required for encryption/activity
+	 *
+	 * @param \OCP\Files\Node $path
+	 * @param bool $recursive Should we check all parent folders as well
+	 * @return array
+	 * @since 9.2.0
+	 */
+	public function getAccessList(\OCP\Files\Node $path, $recursive = true);
+
 	/**
 	 * Instantiates a new share object. This is to be passed to
 	 * createShare.