644 lines
20 KiB
PHP
644 lines
20 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Georg Ehrke <oc.list@georgehrke.com>
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* @author Joas Schilling <coding@schilljs.com>
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* @author Julius Härtl <jus@bitgrid.net>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Robin McCorkell <robin@mccorkell.me.uk>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Vincent Petry <vincent@nextcloud.com>
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*
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program 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 License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OC\Files\Node;
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use OC\DB\QueryBuilder\Literal;
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use OC\Files\Search\SearchComparison;
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use OC\Files\Search\SearchQuery;
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use OC\Files\Storage\Wrapper\Jail;
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use OCA\Files_Sharing\SharedStorage;
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use OCP\DB\QueryBuilder\IQueryBuilder;
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use OCP\Files\Config\ICachedMountInfo;
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use OCP\Files\FileInfo;
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use OCP\Files\Mount\IMountPoint;
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use OCP\Files\NotFoundException;
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use OCP\Files\NotPermittedException;
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use OCP\Files\Search\ISearchComparison;
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use OCP\Files\Search\ISearchOperator;
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use OCP\Files\Search\ISearchQuery;
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use OCP\IUserManager;
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class Folder extends Node implements \OCP\Files\Folder {
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/**
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* Creates a Folder that represents a non-existing path
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*
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* @param string $path path
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* @return string non-existing node class
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*/
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protected function createNonExistingNode($path) {
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return new NonExistingFolder($this->root, $this->view, $path);
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}
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/**
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* @param string $path path relative to the folder
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* @return string
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* @throws \OCP\Files\NotPermittedException
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*/
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public function getFullPath($path) {
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if (!$this->isValidPath($path)) {
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throw new NotPermittedException('Invalid path');
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}
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return $this->path . $this->normalizePath($path);
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}
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/**
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* @param string $path
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* @return string
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*/
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public function getRelativePath($path) {
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if ($this->path === '' or $this->path === '/') {
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return $this->normalizePath($path);
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}
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if ($path === $this->path) {
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return '/';
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} elseif (strpos($path, $this->path . '/') !== 0) {
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return null;
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} else {
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$path = substr($path, strlen($this->path));
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return $this->normalizePath($path);
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}
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}
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/**
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* check if a node is a (grand-)child of the folder
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*
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* @param \OC\Files\Node\Node $node
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* @return bool
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*/
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public function isSubNode($node) {
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return strpos($node->getPath(), $this->path . '/') === 0;
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}
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/**
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* get the content of this directory
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*
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* @return Node[]
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* @throws \OCP\Files\NotFoundException
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*/
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public function getDirectoryListing() {
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$folderContent = $this->view->getDirectoryContent($this->path);
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return array_map(function (FileInfo $info) {
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if ($info->getMimetype() === 'httpd/unix-directory') {
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return new Folder($this->root, $this->view, $info->getPath(), $info);
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} else {
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return new File($this->root, $this->view, $info->getPath(), $info);
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}
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}, $folderContent);
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}
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/**
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* @param string $path
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* @param FileInfo $info
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* @return File|Folder
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*/
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protected function createNode($path, FileInfo $info = null) {
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if (is_null($info)) {
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$isDir = $this->view->is_dir($path);
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} else {
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$isDir = $info->getType() === FileInfo::TYPE_FOLDER;
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}
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if ($isDir) {
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return new Folder($this->root, $this->view, $path, $info);
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} else {
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return new File($this->root, $this->view, $path, $info);
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}
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}
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/**
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* Get the node at $path
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*
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* @param string $path
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* @return \OC\Files\Node\Node
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* @throws \OCP\Files\NotFoundException
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*/
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public function get($path) {
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return $this->root->get($this->getFullPath($path));
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}
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/**
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* @param string $path
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* @return bool
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*/
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public function nodeExists($path) {
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try {
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$this->get($path);
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return true;
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} catch (NotFoundException $e) {
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return false;
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}
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}
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/**
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* @param string $path
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* @return \OC\Files\Node\Folder
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* @throws \OCP\Files\NotPermittedException
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*/
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public function newFolder($path) {
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if ($this->checkPermissions(\OCP\Constants::PERMISSION_CREATE)) {
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$fullPath = $this->getFullPath($path);
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$nonExisting = new NonExistingFolder($this->root, $this->view, $fullPath);
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$this->sendHooks(['preWrite', 'preCreate'], [$nonExisting]);
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if (!$this->view->mkdir($fullPath)) {
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throw new NotPermittedException('Could not create folder');
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}
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$node = new Folder($this->root, $this->view, $fullPath);
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$this->sendHooks(['postWrite', 'postCreate'], [$node]);
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return $node;
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} else {
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throw new NotPermittedException('No create permission for folder');
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}
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}
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/**
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* @param string $path
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* @param string | resource | null $content
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* @return \OC\Files\Node\File
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* @throws \OCP\Files\NotPermittedException
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*/
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public function newFile($path, $content = null) {
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if ($this->checkPermissions(\OCP\Constants::PERMISSION_CREATE)) {
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$fullPath = $this->getFullPath($path);
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$nonExisting = new NonExistingFile($this->root, $this->view, $fullPath);
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$this->sendHooks(['preWrite', 'preCreate'], [$nonExisting]);
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if ($content !== null) {
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$result = $this->view->file_put_contents($fullPath, $content);
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} else {
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$result = $this->view->touch($fullPath);
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}
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if ($result === false) {
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throw new NotPermittedException('Could not create path');
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}
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$node = new File($this->root, $this->view, $fullPath);
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$this->sendHooks(['postWrite', 'postCreate'], [$node]);
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return $node;
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}
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throw new NotPermittedException('No create permission for path');
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}
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private function queryFromOperator(ISearchOperator $operator, string $uid = null): ISearchQuery {
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if ($uid === null) {
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$user = null;
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} else {
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/** @var IUserManager $userManager */
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$userManager = \OC::$server->query(IUserManager::class);
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$user = $userManager->get($uid);
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}
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return new SearchQuery($operator, 0, 0, [], $user);
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}
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/**
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* search for files with the name matching $query
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*
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* @param string|ISearchQuery $query
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* @return \OC\Files\Node\Node[]
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*/
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public function search($query) {
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if (is_string($query)) {
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$query = $this->queryFromOperator(new SearchComparison(ISearchComparison::COMPARE_LIKE, 'name', '%' . $query . '%'));
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}
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// assume a setup where the root mount matches 15 items,
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// sub mount1 matches 7 items and mount2 matches 1 item
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// a search with (0..10) returns 10 results from root with internal offset 0 and limit 10
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// follow up search with (10..20) returns 5 results from root with internal offset 10 and limit 10
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// and 5 results from mount1 with internal offset 0 and limit 5
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// next search with (20..30) return 0 results from root with internal offset 20 and limit 10
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// 2 results from mount1 with internal offset 5[1] and limit 5
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// and 1 result from mount2 with internal offset 0[1] and limit 8
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//
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// Because of the difficulty of calculating the offset for a sub-query if the previous one returns no results
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// (we don't know how many results the previous sub-query has skipped with it's own offset)
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// we instead discard the offset for the sub-queries and filter it afterwards and add the offset to limit.
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// this is sub-optimal but shouldn't hurt to much since large offsets are uncommon in practice
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$limitToHome = $query->limitToHome();
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if ($limitToHome && count(explode('/', $this->path)) !== 3) {
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throw new \InvalidArgumentException('searching by owner is only allows on the users home folder');
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}
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$subQueryLimit = $query->getLimit() > 0 ? $query->getLimit() + $query->getOffset() : PHP_INT_MAX;
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$subQueryOffset = $query->getOffset();
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$noLimitQuery = new SearchQuery(
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$query->getSearchOperation(),
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$subQueryLimit,
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0,
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$query->getOrder(),
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$query->getUser()
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);
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$files = [];
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$rootLength = strlen($this->path);
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$mount = $this->root->getMount($this->path);
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$storage = $mount->getStorage();
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$internalPath = $mount->getInternalPath($this->path);
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$internalPath = rtrim($internalPath, '/');
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if ($internalPath !== '') {
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$internalPath = $internalPath . '/';
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}
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$internalRootLength = strlen($internalPath);
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$cache = $storage->getCache('');
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$results = $cache->searchQuery($noLimitQuery);
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$count = count($results);
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$results = array_slice($results, $subQueryOffset, $subQueryLimit);
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$subQueryOffset = max(0, $subQueryOffset - $count);
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$subQueryLimit = max(0, $subQueryLimit - $count);
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foreach ($results as $result) {
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if ($internalRootLength === 0 or substr($result['path'], 0, $internalRootLength) === $internalPath) {
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$result['internalPath'] = $result['path'];
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$result['path'] = substr($result['path'], $internalRootLength);
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$result['storage'] = $storage;
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$files[] = new \OC\Files\FileInfo($this->path . '/' . $result['path'], $storage, $result['internalPath'], $result, $mount);
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}
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}
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if (!$limitToHome) {
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$mounts = $this->root->getMountsIn($this->path);
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foreach ($mounts as $mount) {
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if ($subQueryLimit <= 0) {
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break;
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}
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$subQuery = new SearchQuery(
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$query->getSearchOperation(),
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$subQueryLimit,
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0,
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$query->getOrder(),
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$query->getUser()
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);
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$storage = $mount->getStorage();
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if ($storage) {
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$cache = $storage->getCache('');
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$relativeMountPoint = ltrim(substr($mount->getMountPoint(), $rootLength), '/');
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$results = $cache->searchQuery($subQuery);
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$count = count($results);
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$results = array_slice($results, $subQueryOffset, $subQueryLimit);
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$subQueryOffset -= $count;
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$subQueryLimit -= $count;
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foreach ($results as $result) {
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$result['internalPath'] = $result['path'];
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$result['path'] = $relativeMountPoint . $result['path'];
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$result['storage'] = $storage;
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$files[] = new \OC\Files\FileInfo($this->path . '/' . $result['path'], $storage,
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$result['internalPath'], $result, $mount);
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}
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}
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}
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}
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return array_map(function (FileInfo $file) {
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return $this->createNode($file->getPath(), $file);
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}, $files);
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}
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/**
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* search for files by mimetype
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*
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* @param string $mimetype
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* @return Node[]
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*/
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public function searchByMime($mimetype) {
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if (strpos($mimetype, '/') === false) {
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$query = $this->queryFromOperator(new SearchComparison(ISearchComparison::COMPARE_LIKE, 'mimetype', $mimetype . '/%'));
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} else {
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$query = $this->queryFromOperator(new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'mimetype', $mimetype));
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}
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return $this->search($query);
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}
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/**
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* search for files by tag
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*
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* @param string|int $tag name or tag id
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* @param string $userId owner of the tags
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* @return Node[]
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*/
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public function searchByTag($tag, $userId) {
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$query = $this->queryFromOperator(new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'tagname', $tag), $userId);
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return $this->search($query);
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}
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/**
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* @param int $id
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* @return \OC\Files\Node\Node[]
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*/
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public function getById($id) {
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$mountCache = $this->root->getUserMountCache();
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if (strpos($this->getPath(), '/', 1) > 0) {
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list(, $user) = explode('/', $this->getPath());
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} else {
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$user = null;
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}
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$mountsContainingFile = $mountCache->getMountsForFileId((int)$id, $user);
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$mounts = $this->root->getMountsIn($this->path);
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$mounts[] = $this->root->getMount($this->path);
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/** @var IMountPoint[] $folderMounts */
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$folderMounts = array_combine(array_map(function (IMountPoint $mountPoint) {
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return $mountPoint->getMountPoint();
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}, $mounts), $mounts);
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/** @var ICachedMountInfo[] $mountsContainingFile */
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$mountsContainingFile = array_values(array_filter($mountsContainingFile, function (ICachedMountInfo $cachedMountInfo) use ($folderMounts) {
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return isset($folderMounts[$cachedMountInfo->getMountPoint()]);
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}));
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if (count($mountsContainingFile) === 0) {
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if ($user === $this->getAppDataDirectoryName()) {
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return $this->getByIdInRootMount((int)$id);
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}
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return [];
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}
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$nodes = array_map(function (ICachedMountInfo $cachedMountInfo) use ($folderMounts, $id) {
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$mount = $folderMounts[$cachedMountInfo->getMountPoint()];
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$cacheEntry = $mount->getStorage()->getCache()->get((int)$id);
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if (!$cacheEntry) {
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return null;
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}
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// cache jails will hide the "true" internal path
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$internalPath = ltrim($cachedMountInfo->getRootInternalPath() . '/' . $cacheEntry->getPath(), '/');
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$pathRelativeToMount = substr($internalPath, strlen($cachedMountInfo->getRootInternalPath()));
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$pathRelativeToMount = ltrim($pathRelativeToMount, '/');
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$absolutePath = rtrim($cachedMountInfo->getMountPoint() . $pathRelativeToMount, '/');
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return $this->root->createNode($absolutePath, new \OC\Files\FileInfo(
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$absolutePath, $mount->getStorage(), $cacheEntry->getPath(), $cacheEntry, $mount,
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\OC::$server->getUserManager()->get($mount->getStorage()->getOwner($pathRelativeToMount))
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));
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}, $mountsContainingFile);
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$nodes = array_filter($nodes);
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return array_filter($nodes, function (Node $node) {
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return $this->getRelativePath($node->getPath());
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});
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}
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protected function getAppDataDirectoryName(): string {
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$instanceId = \OC::$server->getConfig()->getSystemValueString('instanceid');
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return 'appdata_' . $instanceId;
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}
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/**
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* In case the path we are currently in is inside the appdata_* folder,
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* the original getById method does not work, because it can only look inside
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* the user's mount points. But the user has no mount point for the root storage.
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*
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* So in that case we directly check the mount of the root if it contains
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* the id. If it does we check if the path is inside the path we are working
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* in.
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*
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* @param int $id
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* @return array
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*/
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protected function getByIdInRootMount(int $id): array {
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$mount = $this->root->getMount('');
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$cacheEntry = $mount->getStorage()->getCache($this->path)->get($id);
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if (!$cacheEntry) {
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return [];
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}
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$absolutePath = '/' . ltrim($cacheEntry->getPath(), '/');
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$currentPath = rtrim($this->path, '/') . '/';
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if (strpos($absolutePath, $currentPath) !== 0) {
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return [];
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}
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return [$this->root->createNode(
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$absolutePath, new \OC\Files\FileInfo(
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$absolutePath,
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$mount->getStorage(),
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$cacheEntry->getPath(),
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$cacheEntry,
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$mount
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))];
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}
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public function getFreeSpace() {
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return $this->view->free_space($this->path);
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}
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public function delete() {
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if ($this->checkPermissions(\OCP\Constants::PERMISSION_DELETE)) {
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$this->sendHooks(['preDelete']);
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$fileInfo = $this->getFileInfo();
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$this->view->rmdir($this->path);
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$nonExisting = new NonExistingFolder($this->root, $this->view, $this->path, $fileInfo);
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$this->sendHooks(['postDelete'], [$nonExisting]);
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$this->exists = false;
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} else {
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throw new NotPermittedException('No delete permission for path');
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}
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}
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/**
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* Add a suffix to the name in case the file exists
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*
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* @param string $name
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* @return string
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* @throws NotPermittedException
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*/
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public function getNonExistingName($name) {
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$uniqueName = \OC_Helper::buildNotExistingFileNameForView($this->getPath(), $name, $this->view);
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return trim($this->getRelativePath($uniqueName), '/');
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}
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/**
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* @param int $limit
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* @param int $offset
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* @return \OCP\Files\Node[]
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*/
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public function getRecent($limit, $offset = 0) {
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$mimetypeLoader = \OC::$server->getMimeTypeLoader();
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$mounts = $this->root->getMountsIn($this->path);
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$mounts[] = $this->getMountPoint();
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$mounts = array_filter($mounts, function (IMountPoint $mount) {
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return $mount->getStorage();
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});
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$storageIds = array_map(function (IMountPoint $mount) {
|
|
return $mount->getStorage()->getCache()->getNumericStorageId();
|
|
}, $mounts);
|
|
/** @var IMountPoint[] $mountMap */
|
|
$mountMap = array_combine($storageIds, $mounts);
|
|
$folderMimetype = $mimetypeLoader->getId(FileInfo::MIMETYPE_FOLDER);
|
|
|
|
/*
|
|
* Construct an array of the storage id with their prefix path
|
|
* This helps us to filter in the final query
|
|
*/
|
|
$filters = array_map(function (IMountPoint $mount) {
|
|
$storage = $mount->getStorage();
|
|
|
|
$storageId = $storage->getCache()->getNumericStorageId();
|
|
$prefix = '';
|
|
|
|
if ($storage->instanceOfStorage(Jail::class)) {
|
|
$prefix = $storage->getUnJailedPath('');
|
|
}
|
|
|
|
return [
|
|
'storageId' => $storageId,
|
|
'pathPrefix' => $prefix,
|
|
];
|
|
}, $mounts);
|
|
|
|
// Search in batches of 500 entries
|
|
$searchLimit = 500;
|
|
$results = [];
|
|
$searchResultCount = 0;
|
|
$count = 0;
|
|
do {
|
|
$searchResult = $this->recentSearch($searchLimit, $offset, $folderMimetype, $filters);
|
|
|
|
// Exit condition if there are no more results
|
|
if (count($searchResult) === 0) {
|
|
break;
|
|
}
|
|
|
|
$searchResultCount += count($searchResult);
|
|
|
|
$parseResult = $this->recentParse($searchResult, $mountMap, $mimetypeLoader);
|
|
|
|
foreach ($parseResult as $result) {
|
|
$results[] = $result;
|
|
}
|
|
|
|
$offset += $searchLimit;
|
|
$count++;
|
|
} while (count($results) < $limit && ($searchResultCount < (3 * $limit) || $count < 5));
|
|
|
|
return array_slice($results, 0, $limit);
|
|
}
|
|
|
|
private function recentSearch($limit, $offset, $folderMimetype, $filters) {
|
|
$dbconn = \OC::$server->getDatabaseConnection();
|
|
$builder = $dbconn->getQueryBuilder();
|
|
$query = $builder
|
|
->select('f.*')
|
|
->from('filecache', 'f');
|
|
|
|
/*
|
|
* Here is where we construct the filtering.
|
|
* Note that this is expensive filtering as it is a lot of like queries.
|
|
* However the alternative is we do this filtering and parsing later in php with the risk of looping endlessly
|
|
*/
|
|
$storageFilters = $builder->expr()->orX();
|
|
foreach ($filters as $filter) {
|
|
$storageFilter = $builder->expr()->andX(
|
|
$builder->expr()->eq('f.storage', $builder->createNamedParameter($filter['storageId']))
|
|
);
|
|
|
|
if ($filter['pathPrefix'] !== '') {
|
|
$storageFilter->add(
|
|
$builder->expr()->like('f.path', $builder->createNamedParameter($dbconn->escapeLikeParameter($filter['pathPrefix']) . '/%'))
|
|
);
|
|
}
|
|
|
|
$storageFilters->add($storageFilter);
|
|
}
|
|
|
|
$query->andWhere($storageFilters);
|
|
|
|
$query->andWhere($builder->expr()->orX(
|
|
// handle non empty folders separate
|
|
$builder->expr()->neq('f.mimetype', $builder->createNamedParameter($folderMimetype, IQueryBuilder::PARAM_INT)),
|
|
$builder->expr()->eq('f.size', new Literal(0))
|
|
))
|
|
->andWhere($builder->expr()->notLike('f.path', $builder->createNamedParameter('files_versions/%')))
|
|
->andWhere($builder->expr()->notLike('f.path', $builder->createNamedParameter('files_trashbin/%')))
|
|
->orderBy('f.mtime', 'DESC')
|
|
->setMaxResults($limit)
|
|
->setFirstResult($offset);
|
|
|
|
$result = $query->execute();
|
|
$rows = $result->fetchAll();
|
|
$result->closeCursor();
|
|
|
|
return $rows;
|
|
}
|
|
|
|
private function recentParse($result, $mountMap, $mimetypeLoader) {
|
|
$files = array_filter(array_map(function (array $entry) use ($mountMap, $mimetypeLoader) {
|
|
$mount = $mountMap[$entry['storage']];
|
|
$entry['internalPath'] = $entry['path'];
|
|
$entry['mimetype'] = $mimetypeLoader->getMimetypeById($entry['mimetype']);
|
|
$entry['mimepart'] = $mimetypeLoader->getMimetypeById($entry['mimepart']);
|
|
$path = $this->getAbsolutePath($mount, $entry['path']);
|
|
if (is_null($path)) {
|
|
return null;
|
|
}
|
|
$fileInfo = new \OC\Files\FileInfo($path, $mount->getStorage(), $entry['internalPath'], $entry, $mount);
|
|
return $this->root->createNode($fileInfo->getPath(), $fileInfo);
|
|
}, $result));
|
|
|
|
return array_values(array_filter($files, function (Node $node) {
|
|
$cacheEntry = $node->getMountPoint()->getStorage()->getCache()->get($node->getId());
|
|
if (!$cacheEntry) {
|
|
return false;
|
|
}
|
|
$relative = $this->getRelativePath($node->getPath());
|
|
return $relative !== null && $relative !== '/'
|
|
&& ($cacheEntry->getPermissions() & \OCP\Constants::PERMISSION_READ) === \OCP\Constants::PERMISSION_READ;
|
|
}));
|
|
}
|
|
|
|
private function getAbsolutePath(IMountPoint $mount, $path) {
|
|
$storage = $mount->getStorage();
|
|
if ($storage->instanceOfStorage('\OC\Files\Storage\Wrapper\Jail')) {
|
|
if ($storage->instanceOfStorage(SharedStorage::class)) {
|
|
$storage->getSourceStorage();
|
|
}
|
|
/** @var \OC\Files\Storage\Wrapper\Jail $storage */
|
|
$jailRoot = $storage->getUnjailedPath('');
|
|
$rootLength = strlen($jailRoot) + 1;
|
|
if ($path === $jailRoot) {
|
|
return $mount->getMountPoint();
|
|
} elseif (substr($path, 0, $rootLength) === $jailRoot . '/') {
|
|
return $mount->getMountPoint() . substr($path, $rootLength);
|
|
} else {
|
|
return null;
|
|
}
|
|
} else {
|
|
return $mount->getMountPoint() . $path;
|
|
}
|
|
}
|
|
}
|