Setup shared mounts for the correct user when setting up the filesystem for the non-logged in user

apps/files_sharing/lib/sharedmount.php

@@ -22,15 +22,15 @@ class SharedMount extends Mount implements MoveableMount {
 
 	public function __construct($storage, $mountpoint, $arguments = null, $loader = null) {
 		// first update the mount point before creating the parent
-		$newMountPoint = self::verifyMountPoint($arguments['share']);
-		$absMountPoint = '/' . \OCP\User::getUser() . '/files' . $newMountPoint;
+		$newMountPoint = $this->verifyMountPoint($arguments['share'], $arguments['user']);
+		$absMountPoint = '/' . $arguments['user'] . '/files' . $newMountPoint;
 		parent::__construct($storage, $absMountPoint, $arguments, $loader);
 	}
 
 	/**
 	 * check if the parent folder exists otherwise move the mount point up
 	 */
-	private static function verifyMountPoint(&$share) {
+	private function verifyMountPoint(&$share, $user) {
 
 		$mountPoint = basename($share['file_target']);
 		$parent = dirname($share['file_target']);
@@ -42,7 +42,7 @@ class SharedMount extends Mount implements MoveableMount {
 		$newMountPoint = \OCA\Files_Sharing\Helper::generateUniqueTarget(
 				\OC\Files\Filesystem::normalizePath($parent . '/' . $mountPoint),
 				array(),
-				new \OC\Files\View('/' . \OCP\User::getUser() . '/files')
+				new \OC\Files\View('/' . $user . '/files')
 				);
 
 		if($newMountPoint !== $share['file_target']) {

apps/files_sharing/lib/sharedstorage.php

@@ -397,7 +397,7 @@ class Shared extends \OC\Files\Storage\Common implements ISharedStorage {
 	}
 
 	public static function setup($options) {
-		$shares = \OCP\Share::getItemsSharedWith('file');
+		$shares = \OCP\Share::getItemsSharedWithUser('file', $options['user']);
 		$manager = Filesystem::getMountManager();
 		$loader = Filesystem::getLoader();
 		if (!\OCP\User::isLoggedIn() || \OCP\User::getUser() != $options['user']
@@ -411,7 +411,8 @@ class Shared extends \OC\Files\Storage\Common implements ISharedStorage {
 							$options['user_dir'] . '/' . $share['file_target'],
 							array(
 								'share' => $share,
-								),
+								'user' => $options['user']
+							),
 							$loader
 							);
 					$manager->addMount($mount);

apps/files_sharing/tests/sharedstorage.php

@@ -197,4 +197,30 @@ class Test_Files_Sharing_Storage extends OCA\Files_sharing\Tests\TestCase {
 		$this->assertTrue($result);
 	}
 
+	function testMountSharesOtherUser() {
+		$folderInfo = $this->view->getFileInfo($this->folder);
+		$fileInfo = $this->view->getFileInfo($this->filename);
+		$rootView = new \OC\Files\View('');
+		self::loginHelper(self::TEST_FILES_SHARING_API_USER1);
+
+		// share 2 different files with 2 different users
+		\OCP\Share::shareItem('folder', $folderInfo['fileid'], \OCP\Share::SHARE_TYPE_USER,
+			self::TEST_FILES_SHARING_API_USER2, 31);
+		\OCP\Share::shareItem('file', $fileInfo['fileid'], \OCP\Share::SHARE_TYPE_USER,
+			self::TEST_FILES_SHARING_API_USER3, 31);
+
+		self::loginHelper(self::TEST_FILES_SHARING_API_USER2);
+		$this->assertTrue($rootView->file_exists('/' . self::TEST_FILES_SHARING_API_USER2 . '/files/' . $this->folder));
+		OC_Hook::emit('OC_Filesystem', 'setup', array('user' => self::TEST_FILES_SHARING_API_USER3, 'user_dir' => \OC_User::getHome(self::TEST_FILES_SHARING_API_USER3)));
+
+		$this->assertTrue($rootView->file_exists('/' . self::TEST_FILES_SHARING_API_USER3 . '/files/' . $this->filename));
+
+		// make sure we didn't double setup shares for user 2 or mounted the shares for user 3 in user's 2 home
+		$this->assertFalse($rootView->file_exists('/' . self::TEST_FILES_SHARING_API_USER2 . '/files/' . $this->folder .' (2)'));
+		$this->assertFalse($rootView->file_exists('/' . self::TEST_FILES_SHARING_API_USER2 . '/files/' . $this->filename));
+
+		//cleanup
+		self::loginHelper(self::TEST_FILES_SHARING_API_USER1);
+		$this->view->unlink($this->folder);
+	}
 }