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-rw-r--r--apps/files_trashbin/lib/trashbin.php926
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diff --git a/apps/files_trashbin/lib/trashbin.php b/apps/files_trashbin/lib/trashbin.php
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-<?php
-/**
- * @author Bart Visscher <bartv@thisnet.nl>
- * @author Bastien Ho <bastienho@urbancube.fr>
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author Florin Peter <github@florin-peter.de>
- * @author Georg Ehrke <georg@owncloud.com>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Qingping Hou <dave2008713@gmail.com>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <robin@mccorkell.me.uk>
- * @author Roeland Jago Douma <rullzer@owncloud.com>
- * @author Sjors van der Pluijm <sjors@desjors.nl>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Victor Dubiniuk <dubiniuk@owncloud.com>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program. If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OCA\Files_Trashbin;
-
-use OC\Files\Filesystem;
-use OC\Files\View;
-use OCA\Files_Trashbin\AppInfo\Application;
-use OCA\Files_Trashbin\Command\Expire;
-use OCP\Files\NotFoundException;
-use OCP\User;
-
-class Trashbin {
-
- // unit: percentage; 50% of available disk space/quota
- const DEFAULTMAXSIZE = 50;
-
- /**
- * Whether versions have already be rescanned during this PHP request
- *
- * @var bool
- */
- private static $scannedVersions = false;
-
- /**
- * Ensure we don't need to scan the file during the move to trash
- * by triggering the scan in the pre-hook
- *
- * @param array $params
- */
- public static function ensureFileScannedHook($params) {
- try {
- self::getUidAndFilename($params['path']);
- } catch (NotFoundException $e) {
- // nothing to scan for non existing files
- }
- }
-
- /**
- * get the UID of the owner of the file and the path to the file relative to
- * owners files folder
- *
- * @param string $filename
- * @return array
- * @throws \OC\User\NoUserException
- */
- public static function getUidAndFilename($filename) {
- $uid = Filesystem::getOwner($filename);
- $userManager = \OC::$server->getUserManager();
- // if the user with the UID doesn't exists, e.g. because the UID points
- // to a remote user with a federated cloud ID we use the current logged-in
- // user. We need a valid local user to move the file to the right trash bin
- if (!$userManager->userExists($uid)) {
- $uid = User::getUser();
- }
- Filesystem::initMountPoints($uid);
- if ($uid != User::getUser()) {
- $info = Filesystem::getFileInfo($filename);
- $ownerView = new View('/' . $uid . '/files');
- try {
- $filename = $ownerView->getPath($info['fileid']);
- } catch (NotFoundException $e) {
- $filename = null;
- }
- }
- return [$uid, $filename];
- }
-
- /**
- * get original location of files for user
- *
- * @param string $user
- * @return array (filename => array (timestamp => original location))
- */
- public static function getLocations($user) {
- $query = \OC_DB::prepare('SELECT `id`, `timestamp`, `location`'
- . ' FROM `*PREFIX*files_trash` WHERE `user`=?');
- $result = $query->execute(array($user));
- $array = array();
- while ($row = $result->fetchRow()) {
- if (isset($array[$row['id']])) {
- $array[$row['id']][$row['timestamp']] = $row['location'];
- } else {
- $array[$row['id']] = array($row['timestamp'] => $row['location']);
- }
- }
- return $array;
- }
-
- /**
- * get original location of file
- *
- * @param string $user
- * @param string $filename
- * @param string $timestamp
- * @return string original location
- */
- public static function getLocation($user, $filename, $timestamp) {
- $query = \OC_DB::prepare('SELECT `location` FROM `*PREFIX*files_trash`'
- . ' WHERE `user`=? AND `id`=? AND `timestamp`=?');
- $result = $query->execute(array($user, $filename, $timestamp))->fetchAll();
- if (isset($result[0]['location'])) {
- return $result[0]['location'];
- } else {
- return false;
- }
- }
-
- private static function setUpTrash($user) {
- $view = new View('/' . $user);
- if (!$view->is_dir('files_trashbin')) {
- $view->mkdir('files_trashbin');
- }
- if (!$view->is_dir('files_trashbin/files')) {
- $view->mkdir('files_trashbin/files');
- }
- if (!$view->is_dir('files_trashbin/versions')) {
- $view->mkdir('files_trashbin/versions');
- }
- if (!$view->is_dir('files_trashbin/keys')) {
- $view->mkdir('files_trashbin/keys');
- }
- }
-
-
- /**
- * copy file to owners trash
- *
- * @param string $sourcePath
- * @param string $owner
- * @param string $targetPath
- * @param $user
- * @param integer $timestamp
- */
- private static function copyFilesToUser($sourcePath, $owner, $targetPath, $user, $timestamp) {
- self::setUpTrash($owner);
-
- $targetFilename = basename($targetPath);
- $targetLocation = dirname($targetPath);
-
- $sourceFilename = basename($sourcePath);
-
- $view = new View('/');
-
- $target = $user . '/files_trashbin/files/' . $targetFilename . '.d' . $timestamp;
- $source = $owner . '/files_trashbin/files/' . $sourceFilename . '.d' . $timestamp;
- self::copy_recursive($source, $target, $view);
-
-
- if ($view->file_exists($target)) {
- $query = \OC_DB::prepare("INSERT INTO `*PREFIX*files_trash` (`id`,`timestamp`,`location`,`user`) VALUES (?,?,?,?)");
- $result = $query->execute(array($targetFilename, $timestamp, $targetLocation, $user));
- if (!$result) {
- \OCP\Util::writeLog('files_trashbin', 'trash bin database couldn\'t be updated for the files owner', \OCP\Util::ERROR);
- }
- }
- }
-
-
- /**
- * move file to the trash bin
- *
- * @param string $file_path path to the deleted file/directory relative to the files root directory
- * @return bool
- */
- public static function move2trash($file_path) {
- // get the user for which the filesystem is setup
- $root = Filesystem::getRoot();
- list(, $user) = explode('/', $root);
- list($owner, $ownerPath) = self::getUidAndFilename($file_path);
-
- $ownerView = new View('/' . $owner);
- // file has been deleted in between
- if (is_null($ownerPath) || $ownerPath === '' || !$ownerView->file_exists('/files/' . $ownerPath)) {
- return true;
- }
-
- self::setUpTrash($user);
- if ($owner !== $user) {
- // also setup for owner
- self::setUpTrash($owner);
- }
-
- $path_parts = pathinfo($ownerPath);
-
- $filename = $path_parts['basename'];
- $location = $path_parts['dirname'];
- $timestamp = time();
-
- // disable proxy to prevent recursive calls
- $trashPath = '/files_trashbin/files/' . $filename . '.d' . $timestamp;
-
- /** @var \OC\Files\Storage\Storage $trashStorage */
- list($trashStorage, $trashInternalPath) = $ownerView->resolvePath($trashPath);
- /** @var \OC\Files\Storage\Storage $sourceStorage */
- list($sourceStorage, $sourceInternalPath) = $ownerView->resolvePath('/files/' . $ownerPath);
- try {
- $moveSuccessful = true;
- if ($trashStorage->file_exists($trashInternalPath)) {
- $trashStorage->unlink($trashInternalPath);
- }
- $trashStorage->moveFromStorage($sourceStorage, $sourceInternalPath, $trashInternalPath);
- } catch (\OCA\Files_Trashbin\Exceptions\CopyRecursiveException $e) {
- $moveSuccessful = false;
- if ($trashStorage->file_exists($trashInternalPath)) {
- $trashStorage->unlink($trashInternalPath);
- }
- \OCP\Util::writeLog('files_trashbin', 'Couldn\'t move ' . $file_path . ' to the trash bin', \OCP\Util::ERROR);
- }
-
- if ($sourceStorage->file_exists($sourceInternalPath)) { // failed to delete the original file, abort
- $sourceStorage->unlink($sourceInternalPath);
- return false;
- }
-
- $trashStorage->getUpdater()->renameFromStorage($sourceStorage, $sourceInternalPath, $trashInternalPath);
-
- if ($moveSuccessful) {
- $query = \OC_DB::prepare("INSERT INTO `*PREFIX*files_trash` (`id`,`timestamp`,`location`,`user`) VALUES (?,?,?,?)");
- $result = $query->execute(array($filename, $timestamp, $location, $owner));
- if (!$result) {
- \OCP\Util::writeLog('files_trashbin', 'trash bin database couldn\'t be updated', \OCP\Util::ERROR);
- }
- \OCP\Util::emitHook('\OCA\Files_Trashbin\Trashbin', 'post_moveToTrash', array('filePath' => Filesystem::normalizePath($file_path),
- 'trashPath' => Filesystem::normalizePath($filename . '.d' . $timestamp)));
-
- self::retainVersions($filename, $owner, $ownerPath, $timestamp);
-
- // if owner !== user we need to also add a copy to the owners trash
- if ($user !== $owner) {
- self::copyFilesToUser($ownerPath, $owner, $file_path, $user, $timestamp);
- }
- }
-
- self::scheduleExpire($user);
-
- // if owner !== user we also need to update the owners trash size
- if ($owner !== $user) {
- self::scheduleExpire($owner);
- }
-
- return $moveSuccessful;
- }
-
- /**
- * Move file versions to trash so that they can be restored later
- *
- * @param string $filename of deleted file
- * @param string $owner owner user id
- * @param string $ownerPath path relative to the owner's home storage
- * @param integer $timestamp when the file was deleted
- */
- private static function retainVersions($filename, $owner, $ownerPath, $timestamp) {
- if (\OCP\App::isEnabled('files_versions') && !empty($ownerPath)) {
-
- $user = User::getUser();
- $rootView = new View('/');
-
- if ($rootView->is_dir($owner . '/files_versions/' . $ownerPath)) {
- if ($owner !== $user) {
- self::copy_recursive($owner . '/files_versions/' . $ownerPath, $owner . '/files_trashbin/versions/' . basename($ownerPath) . '.d' . $timestamp, $rootView);
- }
- self::move($rootView, $owner . '/files_versions/' . $ownerPath, $user . '/files_trashbin/versions/' . $filename . '.d' . $timestamp);
- } else if ($versions = \OCA\Files_Versions\Storage::getVersions($owner, $ownerPath)) {
-
- foreach ($versions as $v) {
- if ($owner !== $user) {
- self::copy($rootView, $owner . '/files_versions' . $v['path'] . '.v' . $v['version'], $owner . '/files_trashbin/versions/' . $v['name'] . '.v' . $v['version'] . '.d' . $timestamp);
- }
- self::move($rootView, $owner . '/files_versions' . $v['path'] . '.v' . $v['version'], $user . '/files_trashbin/versions/' . $filename . '.v' . $v['version'] . '.d' . $timestamp);
- }
- }
- }
- }
-
- /**
- * Move a file or folder on storage level
- *
- * @param View $view
- * @param string $source
- * @param string $target
- * @return bool
- */
- private static function move(View $view, $source, $target) {
- /** @var \OC\Files\Storage\Storage $sourceStorage */
- list($sourceStorage, $sourceInternalPath) = $view->resolvePath($source);
- /** @var \OC\Files\Storage\Storage $targetStorage */
- list($targetStorage, $targetInternalPath) = $view->resolvePath($target);
- /** @var \OC\Files\Storage\Storage $ownerTrashStorage */
-
- $result = $targetStorage->moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
- if ($result) {
- $targetStorage->getUpdater()->renameFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
- }
- return $result;
- }
-
- /**
- * Copy a file or folder on storage level
- *
- * @param View $view
- * @param string $source
- * @param string $target
- * @return bool
- */
- private static function copy(View $view, $source, $target) {
- /** @var \OC\Files\Storage\Storage $sourceStorage */
- list($sourceStorage, $sourceInternalPath) = $view->resolvePath($source);
- /** @var \OC\Files\Storage\Storage $targetStorage */
- list($targetStorage, $targetInternalPath) = $view->resolvePath($target);
- /** @var \OC\Files\Storage\Storage $ownerTrashStorage */
-
- $result = $targetStorage->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
- if ($result) {
- $targetStorage->getUpdater()->update($targetInternalPath);
- }
- return $result;
- }
-
- /**
- * Restore a file or folder from trash bin
- *
- * @param string $file path to the deleted file/folder relative to "files_trashbin/files/",
- * including the timestamp suffix ".d12345678"
- * @param string $filename name of the file/folder
- * @param int $timestamp time when the file/folder was deleted
- *
- * @return bool true on success, false otherwise
- */
- public static function restore($file, $filename, $timestamp) {
- $user = User::getUser();
- $view = new View('/' . $user);
-
- $location = '';
- if ($timestamp) {
- $location = self::getLocation($user, $filename, $timestamp);
- if ($location === false) {
- \OCP\Util::writeLog('files_trashbin', 'trash bin database inconsistent!', \OCP\Util::ERROR);
- } else {
- // if location no longer exists, restore file in the root directory
- if ($location !== '/' &&
- (!$view->is_dir('files/' . $location) ||
- !$view->isCreatable('files/' . $location))
- ) {
- $location = '';
- }
- }
- }
-
- // we need a extension in case a file/dir with the same name already exists
- $uniqueFilename = self::getUniqueFilename($location, $filename, $view);
-
- $source = Filesystem::normalizePath('files_trashbin/files/' . $file);
- $target = Filesystem::normalizePath('files/' . $location . '/' . $uniqueFilename);
- if (!$view->file_exists($source)) {
- return false;
- }
- $mtime = $view->filemtime($source);
-
- // restore file
- $restoreResult = $view->rename($source, $target);
-
- // handle the restore result
- if ($restoreResult) {
- $fakeRoot = $view->getRoot();
- $view->chroot('/' . $user . '/files');
- $view->touch('/' . $location . '/' . $uniqueFilename, $mtime);
- $view->chroot($fakeRoot);
- \OCP\Util::emitHook('\OCA\Files_Trashbin\Trashbin', 'post_restore', array('filePath' => Filesystem::normalizePath('/' . $location . '/' . $uniqueFilename),
- 'trashPath' => Filesystem::normalizePath($file)));
-
- self::restoreVersions($view, $file, $filename, $uniqueFilename, $location, $timestamp);
-
- if ($timestamp) {
- $query = \OC_DB::prepare('DELETE FROM `*PREFIX*files_trash` WHERE `user`=? AND `id`=? AND `timestamp`=?');
- $query->execute(array($user, $filename, $timestamp));
- }
-
- return true;
- }
-
- return false;
- }
-
- /**
- * restore versions from trash bin
- *
- * @param View $view file view
- * @param string $file complete path to file
- * @param string $filename name of file once it was deleted
- * @param string $uniqueFilename new file name to restore the file without overwriting existing files
- * @param string $location location if file
- * @param int $timestamp deletion time
- * @return false|null
- */
- private static function restoreVersions(View $view, $file, $filename, $uniqueFilename, $location, $timestamp) {
-
- if (\OCP\App::isEnabled('files_versions')) {
-
- $user = User::getUser();
- $rootView = new View('/');
-
- $target = Filesystem::normalizePath('/' . $location . '/' . $uniqueFilename);
-
- list($owner, $ownerPath) = self::getUidAndFilename($target);
-
- // file has been deleted in between
- if (empty($ownerPath)) {
- return false;
- }
-
- if ($timestamp) {
- $versionedFile = $filename;
- } else {
- $versionedFile = $file;
- }
-
- if ($view->is_dir('/files_trashbin/versions/' . $file)) {
- $rootView->rename(Filesystem::normalizePath($user . '/files_trashbin/versions/' . $file), Filesystem::normalizePath($owner . '/files_versions/' . $ownerPath));
- } else if ($versions = self::getVersionsFromTrash($versionedFile, $timestamp, $user)) {
- foreach ($versions as $v) {
- if ($timestamp) {
- $rootView->rename($user . '/files_trashbin/versions/' . $versionedFile . '.v' . $v . '.d' . $timestamp, $owner . '/files_versions/' . $ownerPath . '.v' . $v);
- } else {
- $rootView->rename($user . '/files_trashbin/versions/' . $versionedFile . '.v' . $v, $owner . '/files_versions/' . $ownerPath . '.v' . $v);
- }
- }
- }
- }
- }
-
- /**
- * delete all files from the trash
- */
- public static function deleteAll() {
- $user = User::getUser();
- $view = new View('/' . $user);
- $view->deleteAll('files_trashbin');
- $query = \OC_DB::prepare('DELETE FROM `*PREFIX*files_trash` WHERE `user`=?');
- $query->execute(array($user));
- $view->mkdir('files_trashbin');
- $view->mkdir('files_trashbin/files');
-
- return true;
- }
-
- /**
- * delete file from trash bin permanently
- *
- * @param string $filename path to the file
- * @param string $user
- * @param int $timestamp of deletion time
- *
- * @return int size of deleted files
- */
- public static function delete($filename, $user, $timestamp = null) {
- $view = new View('/' . $user);
- $size = 0;
-
- if ($timestamp) {
- $query = \OC_DB::prepare('DELETE FROM `*PREFIX*files_trash` WHERE `user`=? AND `id`=? AND `timestamp`=?');
- $query->execute(array($user, $filename, $timestamp));
- $file = $filename . '.d' . $timestamp;
- } else {
- $file = $filename;
- }
-
- $size += self::deleteVersions($view, $file, $filename, $timestamp, $user);
-
- if ($view->is_dir('/files_trashbin/files/' . $file)) {
- $size += self::calculateSize(new View('/' . $user . '/files_trashbin/files/' . $file));
- } else {
- $size += $view->filesize('/files_trashbin/files/' . $file);
- }
- \OC_Hook::emit('\OCP\Trashbin', 'preDelete', array('path' => '/files_trashbin/files/' . $file));
- $view->unlink('/files_trashbin/files/' . $file);
- \OC_Hook::emit('\OCP\Trashbin', 'delete', array('path' => '/files_trashbin/files/' . $file));
-
- return $size;
- }
-
- /**
- * @param View $view
- * @param string $file
- * @param string $filename
- * @param integer|null $timestamp
- * @param string $user
- * @return int
- */
- private static function deleteVersions(View $view, $file, $filename, $timestamp, $user) {
- $size = 0;
- if (\OCP\App::isEnabled('files_versions')) {
- if ($view->is_dir('files_trashbin/versions/' . $file)) {
- $size += self::calculateSize(new View('/' . $user . '/files_trashbin/versions/' . $file));
- $view->unlink('files_trashbin/versions/' . $file);
- } else if ($versions = self::getVersionsFromTrash($filename, $timestamp, $user)) {
- foreach ($versions as $v) {
- if ($timestamp) {
- $size += $view->filesize('/files_trashbin/versions/' . $filename . '.v' . $v . '.d' . $timestamp);
- $view->unlink('/files_trashbin/versions/' . $filename . '.v' . $v . '.d' . $timestamp);
- } else {
- $size += $view->filesize('/files_trashbin/versions/' . $filename . '.v' . $v);
- $view->unlink('/files_trashbin/versions/' . $filename . '.v' . $v);
- }
- }
- }
- }
- return $size;
- }
-
- /**
- * check to see whether a file exists in trashbin
- *
- * @param string $filename path to the file
- * @param int $timestamp of deletion time
- * @return bool true if file exists, otherwise false
- */
- public static function file_exists($filename, $timestamp = null) {
- $user = User::getUser();
- $view = new View('/' . $user);
-
- if ($timestamp) {
- $filename = $filename . '.d' . $timestamp;
- } else {
- $filename = $filename;
- }
-
- $target = Filesystem::normalizePath('files_trashbin/files/' . $filename);
- return $view->file_exists($target);
- }
-
- /**
- * deletes used space for trash bin in db if user was deleted
- *
- * @param string $uid id of deleted user
- * @return bool result of db delete operation
- */
- public static function deleteUser($uid) {
- $query = \OC_DB::prepare('DELETE FROM `*PREFIX*files_trash` WHERE `user`=?');
- return $query->execute(array($uid));
- }
-
- /**
- * calculate remaining free space for trash bin
- *
- * @param integer $trashbinSize current size of the trash bin
- * @param string $user
- * @return int available free space for trash bin
- */
- private static function calculateFreeSpace($trashbinSize, $user) {
- $softQuota = true;
- $userObject = \OC::$server->getUserManager()->get($user);
- if(is_null($userObject)) {
- return 0;
- }
- $quota = $userObject->getQuota();
- if ($quota === null || $quota === 'none') {
- $quota = Filesystem::free_space('/');
- $softQuota = false;
- // inf or unknown free space
- if ($quota < 0) {
- $quota = PHP_INT_MAX;
- }
- } else {
- $quota = \OCP\Util::computerFileSize($quota);
- }
-
- // calculate available space for trash bin
- // subtract size of files and current trash bin size from quota
- if ($softQuota) {
- $userFolder = \OC::$server->getUserFolder($user);
- if(is_null($userFolder)) {
- return 0;
- }
- $free = $quota - $userFolder->getSize(); // remaining free space for user
- if ($free > 0) {
- $availableSpace = ($free * self::DEFAULTMAXSIZE / 100) - $trashbinSize; // how much space can be used for versions
- } else {
- $availableSpace = $free - $trashbinSize;
- }
- } else {
- $availableSpace = $quota;
- }
-
- return $availableSpace;
- }
-
- /**
- * resize trash bin if necessary after a new file was added to ownCloud
- *
- * @param string $user user id
- */
- public static function resizeTrash($user) {
-
- $size = self::getTrashbinSize($user);
-
- $freeSpace = self::calculateFreeSpace($size, $user);
-
- if ($freeSpace < 0) {
- self::scheduleExpire($user);
- }
- }
-
- /**
- * clean up the trash bin
- *
- * @param string $user
- */
- public static function expire($user) {
- $trashBinSize = self::getTrashbinSize($user);
- $availableSpace = self::calculateFreeSpace($trashBinSize, $user);
-
- $dirContent = Helper::getTrashFiles('/', $user, 'mtime');
-
- // delete all files older then $retention_obligation
- list($delSize, $count) = self::deleteExpiredFiles($dirContent, $user);
-
- $availableSpace += $delSize;
-
- // delete files from trash until we meet the trash bin size limit again
- self::deleteFiles(array_slice($dirContent, $count), $user, $availableSpace);
- }
-
- /**
- * @param string $user
- */
- private static function scheduleExpire($user) {
- // let the admin disable auto expire
- $application = new Application();
- $expiration = $application->getContainer()->query('Expiration');
- if ($expiration->isEnabled()) {
- \OC::$server->getCommandBus()->push(new Expire($user));
- }
- }
-
- /**
- * if the size limit for the trash bin is reached, we delete the oldest
- * files in the trash bin until we meet the limit again
- *
- * @param array $files
- * @param string $user
- * @param int $availableSpace available disc space
- * @return int size of deleted files
- */
- protected static function deleteFiles($files, $user, $availableSpace) {
- $application = new Application();
- $expiration = $application->getContainer()->query('Expiration');
- $size = 0;
-
- if ($availableSpace < 0) {
- foreach ($files as $file) {
- if ($availableSpace < 0 && $expiration->isExpired($file['mtime'], true)) {
- $tmp = self::delete($file['name'], $user, $file['mtime']);
- \OCP\Util::writeLog('files_trashbin', 'remove "' . $file['name'] . '" (' . $tmp . 'B) to meet the limit of trash bin size (50% of available quota)', \OCP\Util::INFO);
- $availableSpace += $tmp;
- $size += $tmp;
- } else {
- break;
- }
- }
- }
- return $size;
- }
-
- /**
- * delete files older then max storage time
- *
- * @param array $files list of files sorted by mtime
- * @param string $user
- * @return integer[] size of deleted files and number of deleted files
- */
- public static function deleteExpiredFiles($files, $user) {
- $application = new Application();
- $expiration = $application->getContainer()->query('Expiration');
- $size = 0;
- $count = 0;
- foreach ($files as $file) {
- $timestamp = $file['mtime'];
- $filename = $file['name'];
- if ($expiration->isExpired($timestamp)) {
- $count++;
- $size += self::delete($filename, $user, $timestamp);
- \OC::$server->getLogger()->info(
- 'Remove "' . $filename . '" from trashbin because it exceeds max retention obligation term.',
- ['app' => 'files_trashbin']
- );
- } else {
- break;
- }
- }
-
- return array($size, $count);
- }
-
- /**
- * recursive copy to copy a whole directory
- *
- * @param string $source source path, relative to the users files directory
- * @param string $destination destination path relative to the users root directoy
- * @param View $view file view for the users root directory
- * @return int
- * @throws Exceptions\CopyRecursiveException
- */
- private static function copy_recursive($source, $destination, View $view) {
- $size = 0;
- if ($view->is_dir($source)) {
- $view->mkdir($destination);
- $view->touch($destination, $view->filemtime($source));
- foreach ($view->getDirectoryContent($source) as $i) {
- $pathDir = $source . '/' . $i['name'];
- if ($view->is_dir($pathDir)) {
- $size += self::copy_recursive($pathDir, $destination . '/' . $i['name'], $view);
- } else {
- $size += $view->filesize($pathDir);
- $result = $view->copy($pathDir, $destination . '/' . $i['name']);
- if (!$result) {
- throw new \OCA\Files_Trashbin\Exceptions\CopyRecursiveException();
- }
- $view->touch($destination . '/' . $i['name'], $view->filemtime($pathDir));
- }
- }
- } else {
- $size += $view->filesize($source);
- $result = $view->copy($source, $destination);
- if (!$result) {
- throw new \OCA\Files_Trashbin\Exceptions\CopyRecursiveException();
- }
- $view->touch($destination, $view->filemtime($source));
- }
- return $size;
- }
-
- /**
- * find all versions which belong to the file we want to restore
- *
- * @param string $filename name of the file which should be restored
- * @param int $timestamp timestamp when the file was deleted
- * @return array
- */
- private static function getVersionsFromTrash($filename, $timestamp, $user) {
- $view = new View('/' . $user . '/files_trashbin/versions');
- $versions = array();
-
- //force rescan of versions, local storage may not have updated the cache
- if (!self::$scannedVersions) {
- /** @var \OC\Files\Storage\Storage $storage */
- list($storage,) = $view->resolvePath('/');
- $storage->getScanner()->scan('files_trashbin/versions');
- self::$scannedVersions = true;
- }
-
- if ($timestamp) {
- // fetch for old versions
- $matches = $view->searchRaw($filename . '.v%.d' . $timestamp);
- $offset = -strlen($timestamp) - 2;
- } else {
- $matches = $view->searchRaw($filename . '.v%');
- }
-
- if (is_array($matches)) {
- foreach ($matches as $ma) {
- if ($timestamp) {
- $parts = explode('.v', substr($ma['path'], 0, $offset));
- $versions[] = (end($parts));
- } else {
- $parts = explode('.v', $ma);
- $versions[] = (end($parts));
- }
- }
- }
- return $versions;
- }
-
- /**
- * find unique extension for restored file if a file with the same name already exists
- *
- * @param string $location where the file should be restored
- * @param string $filename name of the file
- * @param View $view filesystem view relative to users root directory
- * @return string with unique extension
- */
- private static function getUniqueFilename($location, $filename, View $view) {
- $ext = pathinfo($filename, PATHINFO_EXTENSION);
- $name = pathinfo($filename, PATHINFO_FILENAME);
- $l = \OC::$server->getL10N('files_trashbin');
-
- $location = '/' . trim($location, '/');
-
- // if extension is not empty we set a dot in front of it
- if ($ext !== '') {
- $ext = '.' . $ext;
- }
-
- if ($view->file_exists('files' . $location . '/' . $filename)) {
- $i = 2;
- $uniqueName = $name . " (" . $l->t("restored") . ")" . $ext;
- while ($view->file_exists('files' . $location . '/' . $uniqueName)) {
- $uniqueName = $name . " (" . $l->t("restored") . " " . $i . ")" . $ext;
- $i++;
- }
-
- return $uniqueName;
- }
-
- return $filename;
- }
-
- /**
- * get the size from a given root folder
- *
- * @param View $view file view on the root folder
- * @return integer size of the folder
- */
- private static function calculateSize($view) {
- $root = \OC::$server->getConfig()->getSystemValue('datadirectory') . $view->getAbsolutePath('');
- if (!file_exists($root)) {
- return 0;
- }
- $iterator = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($root), \RecursiveIteratorIterator::CHILD_FIRST);
- $size = 0;
-
- /**
- * RecursiveDirectoryIterator on an NFS path isn't iterable with foreach
- * This bug is fixed in PHP 5.5.9 or before
- * See #8376
- */
- $iterator->rewind();
- while ($iterator->valid()) {
- $path = $iterator->current();
- $relpath = substr($path, strlen($root) - 1);
- if (!$view->is_dir($relpath)) {
- $size += $view->filesize($relpath);
- }
- $iterator->next();
- }
- return $size;
- }
-
- /**
- * get current size of trash bin from a given user
- *
- * @param string $user user who owns the trash bin
- * @return integer trash bin size
- */
- private static function getTrashbinSize($user) {
- $view = new View('/' . $user);
- $fileInfo = $view->getFileInfo('/files_trashbin');
- return isset($fileInfo['size']) ? $fileInfo['size'] : 0;
- }
-
- /**
- * register hooks
- */
- public static function registerHooks() {
- // create storage wrapper on setup
- \OCP\Util::connectHook('OC_Filesystem', 'preSetup', 'OCA\Files_Trashbin\Storage', 'setupStorage');
- //Listen to delete user signal
- \OCP\Util::connectHook('OC_User', 'pre_deleteUser', 'OCA\Files_Trashbin\Hooks', 'deleteUser_hook');
- //Listen to post write hook
- \OCP\Util::connectHook('OC_Filesystem', 'post_write', 'OCA\Files_Trashbin\Hooks', 'post_write_hook');
- // pre and post-rename, disable trash logic for the copy+unlink case
- \OCP\Util::connectHook('OC_Filesystem', 'delete', 'OCA\Files_Trashbin\Trashbin', 'ensureFileScannedHook');
- \OCP\Util::connectHook('OC_Filesystem', 'rename', 'OCA\Files_Trashbin\Storage', 'preRenameHook');
- \OCP\Util::connectHook('OC_Filesystem', 'post_rename', 'OCA\Files_Trashbin\Storage', 'postRenameHook');
- }
-
- /**
- * check if trash bin is empty for a given user
- *
- * @param string $user
- * @return bool
- */
- public static function isEmpty($user) {
-
- $view = new View('/' . $user . '/files_trashbin');
- if ($view->is_dir('/files') && $dh = $view->opendir('/files')) {
- while ($file = readdir($dh)) {
- if (!Filesystem::isIgnoredDir($file)) {
- return false;
- }
- }
- }
- return true;
- }
-
- /**
- * @param $path
- * @return string
- */
- public static function preview_icon($path) {
- return \OCP\Util::linkToRoute('core_ajax_trashbin_preview', array('x' => 32, 'y' => 32, 'file' => $path));
- }
-}
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-15 14:19:08 +0000