* @author Bastien Ho * @author Björn Schießle * @author Florin Peter * @author Georg Ehrke * @author Jörn Friedrich Dreyer * @author Lukas Reschke * @author Morris Jobke * @author Qingping Hou * @author Robin Appelman * @author Robin McCorkell * @author Roeland Jago Douma * @author Sjors van der Pluijm * @author Thomas Müller * @author Victor Dubiniuk * @author Vincent Petry * * @copyright Copyright (c) 2015, 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 * */ namespace OCA\Files_Trashbin; use OC\Files\Filesystem; use OC\Files\View; use OCA\Files_Trashbin\AppInfo\Application; use OCA\Files_Trashbin\Command\Expire; 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 dont 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) { self::getUidAndFilename($params['path']); } public static function getUidAndFilename($filename) { $uid = \OC\Files\Filesystem::getOwner($filename); \OC\Files\Filesystem::initMountPoints($uid); if ($uid != \OCP\User::getUser()) { $info = \OC\Files\Filesystem::getFileInfo($filename); $ownerView = new \OC\Files\View('/' . $uid . '/files'); $filename = $ownerView->getPath($info['fileid']); } return array($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 \OC\Files\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 $ownerPath * @param integer $timestamp */ private static function copyFilesToOwner($sourcePath, $owner, $ownerPath, $timestamp) { self::setUpTrash($owner); $ownerFilename = basename($ownerPath); $ownerLocation = dirname($ownerPath); $sourceFilename = basename($sourcePath); $view = new \OC\Files\View('/'); $source = \OCP\User::getUser() . '/files_trashbin/files/' . $sourceFilename . '.d' . $timestamp; $target = $owner . '/files_trashbin/files/' . $ownerFilename . '.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 = $query->execute(array($ownerFilename, $timestamp, $ownerLocation, $owner)); if (!$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 $file_path path to the deleted file/directory relative to the files root directory */ public static function move2trash($file_path) { // get the user for which the filesystem is setup $root = Filesystem::getRoot(); list(, $user) = explode('/', $root); $size = 0; list($owner, $ownerPath) = self::getUidAndFilename($file_path); $view = new \OC\Files\View('/' . $user); // file has been deleted in between if (!$view->file_exists('/files/' . $file_path)) { return true; } self::setUpTrash($user); if ($owner !== $user) { // also setup for owner self::setUpTrash($owner); } $path_parts = pathinfo($file_path); $filename = $path_parts['basename']; $location = $path_parts['dirname']; $timestamp = time(); $userTrashSize = self::getTrashbinSize($user); // disable proxy to prevent recursive calls $trashPath = '/files_trashbin/files/' . $filename . '.d' . $timestamp; /** @var \OC\Files\Storage\Storage $trashStorage */ list($trashStorage, $trashInternalPath) = $view->resolvePath($trashPath); /** @var \OC\Files\Storage\Storage $sourceStorage */ list($sourceStorage, $sourceInternalPath) = $view->resolvePath('/files/' . $file_path); try { $sizeOfAddedFiles = $sourceStorage->filesize($sourceInternalPath); if ($trashStorage->file_exists($trashInternalPath)) { $trashStorage->unlink($trashInternalPath); } $trashStorage->moveFromStorage($sourceStorage, $sourceInternalPath, $trashInternalPath); } catch (\OCA\Files_Trashbin\Exceptions\CopyRecursiveException $e) { $sizeOfAddedFiles = false; if ($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; } $view->getUpdater()->rename('/files/' . $file_path, $trashPath); if ($sizeOfAddedFiles !== false) { $size = $sizeOfAddedFiles; $query = \OC_DB::prepare("INSERT INTO `*PREFIX*files_trash` (`id`,`timestamp`,`location`,`user`) VALUES (?,?,?,?)"); $result = $query->execute(array($filename, $timestamp, $location, $user)); if (!$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' => \OC\Files\Filesystem::normalizePath($file_path), 'trashPath' => \OC\Files\Filesystem::normalizePath($filename . '.d' . $timestamp))); $size += self::retainVersions($file_path, $filename, $owner, $ownerPath, $timestamp); // if owner !== user we need to also add a copy to the owners trash if ($user !== $owner) { self::copyFilesToOwner($file_path, $owner, $ownerPath, $timestamp); } } $userTrashSize += $size; self::scheduleExpire($userTrashSize, $user); // if owner !== user we also need to update the owners trash size if ($owner !== $user) { $ownerTrashSize = self::getTrashbinSize($owner); $ownerTrashSize += $size; self::scheduleExpire($ownerTrashSize, $owner); } return ($sizeOfAddedFiles === false) ? false : true; } /** * Move file versions to trash so that they can be restored later * * @param string $file_path path to original file * @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 $timestamp when the file was deleted * * @return int size of stored versions */ private static function retainVersions($file_path, $filename, $owner, $ownerPath, $timestamp) { $size = 0; if (\OCP\App::isEnabled('files_versions') && !empty($ownerPath)) { $user = \OCP\User::getUser(); $rootView = new \OC\Files\View('/'); if ($rootView->is_dir($owner . '/files_versions/' . $ownerPath)) { $size += self::calculateSize(new \OC\Files\View('/' . $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) { $size += $rootView->filesize($owner . '/files_versions/' . $v['path'] . '.v' . $v['version']); if ($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); } } } return $size; } /** * 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) { $view->getUpdater()->rename($source, $target); } 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) { $view->getUpdater()->update($target); } 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 = \OCP\User::getUser(); $view = new \OC\Files\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 = \OC\Files\Filesystem::normalizePath('files_trashbin/files/' . $file); $target = \OC\Files\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' => \OC\Files\Filesystem::normalizePath('/' . $location . '/' . $uniqueFilename), 'trashPath' => \OC\Files\Filesystem::normalizePath($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 \OC\Files\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 bool */ private static function restoreVersions(\OC\Files\View $view, $file, $filename, $uniqueFilename, $location, $timestamp) { if (\OCP\App::isEnabled('files_versions')) { $user = \OCP\User::getUser(); $rootView = new \OC\Files\View('/'); $target = \OC\Files\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)) { $rootView->rename(\OC\Files\Filesystem::normalizePath($user . '/files_trashbin/versions/' . $file), \OC\Files\Filesystem::normalizePath($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 = \OCP\User::getUser(); $view = new \OC\Files\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 \OC\Files\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 \OC\Files\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 \OC\Files\View $view * @param $file * @param $filename * @param $timestamp * @return int */ private static function deleteVersions(\OC\Files\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 \OC\Files\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 = \OCP\User::getUser(); $view = new \OC\Files\View('/' . $user); if ($timestamp) { $filename = $filename . '.d' . $timestamp; } else { $filename = $filename; } $target = \OC\Files\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) { $config = \OC::$server->getConfig(); $softQuota = true; $quota = $config->getUserValue($user, 'files', 'quota', null); $view = new \OC\Files\View('/' . $user); if ($quota === null || $quota === 'default') { $quota = $config->getAppValue('files', 'default_quota', null); } if ($quota === null || $quota === 'none') { $quota = \OC\Files\Filesystem::free_space('/'); $softQuota = false; if ($quota === \OCP\Files\FileInfo::SPACE_UNKNOWN) { $quota = 0; } } 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) { $rootInfo = $view->getFileInfo('/files/', false); $free = $quota - $rootInfo['size']; // remaining free space for user if ($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($size, $user); } } /** * clean up the trash bin * * @param int $trashBinSize current size of the trash bin * @param string $user */ public static function expire($trashBinSize, $user) { $availableSpace = self::calculateFreeSpace($trashBinSize, $user); $size = 0; $dirContent = Helper::getTrashFiles('/', $user, 'mtime'); // delete all files older then $retention_obligation list($delSize, $count) = self::deleteExpiredFiles($dirContent, $user); $size += $delSize; $availableSpace += $size; // delete files from trash until we meet the trash bin size limit again $size += self::deleteFiles(array_slice($dirContent, $count), $user, $availableSpace); } /**@param int $trashBinSize current size of the trash bin * @param string $user */ private static function scheduleExpire($trashBinSize, $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, $trashBinSize)); } } /** * 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 $user * @return array size of deleted files and number of deleted files */ public static function deleteExpiredFiles($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 \OC\Files\View $view file view for the users root directory * @return int * @throws Exceptions\CopyRecursiveException */ private static function copy_recursive($source, $destination, \OC\Files\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 \OC\Files\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 \OC\Files\View $view filesystem view relative to users root directory * @return string with unique extension */ private static function getUniqueFilename($location, $filename, \OC\Files\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 \OC\Files\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 \OC\Files\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 \OC\Files\View('/' . $user . '/files_trashbin'); if ($view->is_dir('/files') && $dh = $view->opendir('/files')) { while ($file = readdir($dh)) { if (!\OC\Files\Filesystem::isIgnoredDir($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)); } }