127 lines
3.9 KiB
PHP
127 lines
3.9 KiB
PHP
<?php
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/**
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* ownCloud
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*
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* @author Michael Gapczynski
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* @copyright 2013 Michael Gapczynski mtgap@owncloud.com
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace OC\Files\Cache;
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class Shared_Updater {
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/**
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* Correct the parent folders' ETags for all users shared the file at $target
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*
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* @param string $target
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*/
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static public function correctFolders($target) {
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$uid = \OCP\User::getUser();
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$uidOwner = \OC\Files\Filesystem::getOwner($target);
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$info = \OC\Files\Filesystem::getFileInfo($target);
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$checkedUser = array($uidOwner);
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// Correct Shared folders of other users shared with
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$users = \OCP\Share::getUsersItemShared('file', $info['fileid'], $uidOwner, true);
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if (!empty($users)) {
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while (!empty($users)) {
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$reshareUsers = array();
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foreach ($users as $user) {
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if ( !in_array($user, $checkedUser) ) {
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$etag = \OC\Files\Filesystem::getETag('');
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\OCP\Config::setUserValue($user, 'files_sharing', 'etag', $etag);
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// Look for reshares
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$reshareUsers = array_merge($reshareUsers, \OCP\Share::getUsersItemShared('file', $info['fileid'], $user, true));
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$checkedUser[] = $user;
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}
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}
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$users = $reshareUsers;
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}
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// Correct folders of shared file owner
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$target = substr($target, 8);
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if ($uidOwner !== $uid && $source = \OC_Share_Backend_File::getSource($target)) {
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\OC\Files\Filesystem::initMountPoints($uidOwner);
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$source = '/'.$uidOwner.'/'.$source['path'];
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\OC\Files\Cache\Updater::correctFolder($source, $info['mtime']);
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}
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}
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}
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/**
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* @brief remove all shares for a given file if the file was deleted
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*
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* @param string $path
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*/
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private static function removeShare($path) {
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$fileInfo = \OC\Files\Filesystem::getFileInfo($path);
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$fileSource = $fileInfo['fileid'];
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$query = \OC_DB::prepare('DELETE FROM `*PREFIX*share` WHERE `file_source`=?');
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try {
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\OC_DB::executeAudited($query, array($fileSource));
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} catch (\Exception $e) {
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\OCP\Util::writeLog('files_sharing', "can't remove share: " . $e->getMessage(), \OCP\Util::WARN);
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}
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}
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/**
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* @param array $params
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*/
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static public function writeHook($params) {
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self::correctFolders($params['path']);
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}
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/**
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* @param array $params
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*/
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static public function renameHook($params) {
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self::correctFolders($params['newpath']);
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self::correctFolders(pathinfo($params['oldpath'], PATHINFO_DIRNAME));
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}
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/**
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* @param array $params
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*/
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static public function deleteHook($params) {
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self::correctFolders($params['path']);
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self::removeShare($params['path']);
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}
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/**
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* @param array $params
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*/
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static public function shareHook($params) {
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if ($params['itemType'] === 'file' || $params['itemType'] === 'folder') {
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$uidOwner = \OCP\User::getUser();
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$users = \OCP\Share::getUsersItemShared($params['itemType'], $params['fileSource'], $uidOwner, true);
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if (!empty($users)) {
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while (!empty($users)) {
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$reshareUsers = array();
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foreach ($users as $user) {
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if ($user !== $uidOwner) {
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$etag = \OC\Files\Filesystem::getETag('');
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\OCP\Config::setUserValue($user, 'files_sharing', 'etag', $etag);
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// Look for reshares
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$reshareUsers = array_merge($reshareUsers, \OCP\Share::getUsersItemShared('file', $params['fileSource'], $user, true));
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}
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}
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$users = $reshareUsers;
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}
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}
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}
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}
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}
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