123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675 |
- <?php
- /**
- * @author Bart Visscher <bartv@thisnet.nl>
- * @author Björn Schießle <schiessle@owncloud.com>
- * @author Felix Moeller <mail@felixmoeller.de>
- * @author Florin Peter <github@florin-peter.de>
- * @author Georg Ehrke <georg@owncloud.com>
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Jörn Friedrich Dreyer <jfd@butonic.de>
- * @author Lukas Reschke <lukas@owncloud.com>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <icewind@owncloud.com>
- * @author Robin McCorkell <rmccorkell@karoshi.org.uk>
- * @author Scrutinizer Auto-Fixer <auto-fixer@scrutinizer-ci.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @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 <http://www.gnu.org/licenses/>
- *
- */
-
- /**
- * Versions
- *
- * A class to handle the versioning of files.
- */
-
- namespace OCA\Files_Versions;
-
- use OCA\Files_Versions\Command\Expire;
-
- class Storage {
-
- const DEFAULTENABLED=true;
- const DEFAULTMAXSIZE=50; // unit: percentage; 50% of available disk space/quota
- const VERSIONS_ROOT = 'files_versions/';
-
- // files for which we can remove the versions after the delete operation was successful
- private static $deletedFiles = array();
-
- private static $sourcePathAndUser = array();
-
- private static $max_versions_per_interval = array(
- //first 10sec, one version every 2sec
- 1 => array('intervalEndsAfter' => 10, 'step' => 2),
- //next minute, one version every 10sec
- 2 => array('intervalEndsAfter' => 60, 'step' => 10),
- //next hour, one version every minute
- 3 => array('intervalEndsAfter' => 3600, 'step' => 60),
- //next 24h, one version every hour
- 4 => array('intervalEndsAfter' => 86400, 'step' => 3600),
- //next 30days, one version per day
- 5 => array('intervalEndsAfter' => 2592000, 'step' => 86400),
- //until the end one version per week
- 6 => array('intervalEndsAfter' => -1, 'step' => 604800),
- );
-
- public static function getUidAndFilename($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);
- }
-
- /**
- * Remember the owner and the owner path of the source file
- *
- * @param string $source source path
- */
- public static function setSourcePathAndUser($source) {
- list($uid, $path) = self::getUidAndFilename($source);
- self::$sourcePathAndUser[$source] = array('uid' => $uid, 'path' => $path);
- }
-
- /**
- * Gets the owner and the owner path from the source path
- *
- * @param string $source source path
- * @return array with user id and path
- */
- public static function getSourcePathAndUser($source) {
-
- if (isset(self::$sourcePathAndUser[$source])) {
- $uid = self::$sourcePathAndUser[$source]['uid'];
- $path = self::$sourcePathAndUser[$source]['path'];
- unset(self::$sourcePathAndUser[$source]);
- } else {
- $uid = $path = false;
- }
- return array($uid, $path);
- }
-
- /**
- * get current size of all versions from a given user
- *
- * @param string $user user who owns the versions
- * @return int versions size
- */
- private static function getVersionsSize($user) {
- $view = new \OC\Files\View('/' . $user);
- $fileInfo = $view->getFileInfo('/files_versions');
- return isset($fileInfo['size']) ? $fileInfo['size'] : 0;
- }
-
- /**
- * store a new version of a file.
- */
- public static function store($filename) {
- if(\OCP\Config::getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true') {
-
- // if the file gets streamed we need to remove the .part extension
- // to get the right target
- $ext = pathinfo($filename, PATHINFO_EXTENSION);
- if ($ext === 'part') {
- $filename = substr($filename, 0, strlen($filename)-5);
- }
-
- list($uid, $filename) = self::getUidAndFilename($filename);
-
- $files_view = new \OC\Files\View('/'.$uid .'/files');
- $users_view = new \OC\Files\View('/'.$uid);
-
- // check if filename is a directory
- if($files_view->is_dir($filename)) {
- return false;
- }
-
- // we should have a source file to work with, and the file shouldn't
- // be empty
- $fileExists = $files_view->file_exists($filename);
- if (!($fileExists && $files_view->filesize($filename) > 0)) {
- return false;
- }
-
- // create all parent folders
- self::createMissingDirectories($filename, $users_view);
-
- $versionsSize = self::getVersionsSize($uid);
-
- // assumption: we need filesize($filename) for the new version +
- // some more free space for the modified file which might be
- // 1.5 times as large as the current version -> 2.5
- $neededSpace = $files_view->filesize($filename) * 2.5;
-
- self::scheduleExpire($uid, $filename, $versionsSize, $neededSpace);
-
- // store a new version of a file
- $mtime = $users_view->filemtime('files/' . $filename);
- $users_view->copy('files/' . $filename, 'files_versions/' . $filename . '.v' . $mtime);
- // call getFileInfo to enforce a file cache entry for the new version
- $users_view->getFileInfo('files_versions/' . $filename . '.v' . $mtime);
- }
- }
-
-
- /**
- * mark file as deleted so that we can remove the versions if the file is gone
- * @param string $path
- */
- public static function markDeletedFile($path) {
- list($uid, $filename) = self::getUidAndFilename($path);
- self::$deletedFiles[$path] = array(
- 'uid' => $uid,
- 'filename' => $filename);
- }
-
- /**
- * delete the version from the storage and cache
- *
- * @param \OC\Files\View $view
- * @param string $path
- */
- protected static function deleteVersion($view, $path) {
- $view->unlink($path);
- /**
- * @var \OC\Files\Storage\Storage $storage
- * @var string $internalPath
- */
- list($storage, $internalPath) = $view->resolvePath($path);
- $cache = $storage->getCache($internalPath);
- $cache->remove($internalPath);
- }
-
- /**
- * Delete versions of a file
- */
- public static function delete($path) {
-
- $deletedFile = self::$deletedFiles[$path];
- $uid = $deletedFile['uid'];
- $filename = $deletedFile['filename'];
-
- if (!\OC\Files\Filesystem::file_exists($path)) {
-
- $view = new \OC\Files\View('/' . $uid . '/files_versions');
-
- $versions = self::getVersions($uid, $filename);
- if (!empty($versions)) {
- foreach ($versions as $v) {
- \OC_Hook::emit('\OCP\Versions', 'preDelete', array('path' => $path . $v['version']));
- self::deleteVersion($view, $filename . '.v' . $v['version']);
- \OC_Hook::emit('\OCP\Versions', 'delete', array('path' => $path . $v['version']));
- }
- }
- }
- unset(self::$deletedFiles[$path]);
- }
-
- /**
- * Rename or copy versions of a file of the given paths
- *
- * @param string $sourcePath source path of the file to move, relative to
- * the currently logged in user's "files" folder
- * @param string $targetPath target path of the file to move, relative to
- * the currently logged in user's "files" folder
- * @param string $operation can be 'copy' or 'rename'
- */
- public static function renameOrCopy($sourcePath, $targetPath, $operation) {
- list($sourceOwner, $sourcePath) = self::getSourcePathAndUser($sourcePath);
-
- // it was a upload of a existing file if no old path exists
- // in this case the pre-hook already called the store method and we can
- // stop here
- if ($sourcePath === false) {
- return true;
- }
-
- list($targetOwner, $targetPath) = self::getUidAndFilename($targetPath);
-
- $sourcePath = ltrim($sourcePath, '/');
- $targetPath = ltrim($targetPath, '/');
-
- $rootView = new \OC\Files\View('');
-
- // did we move a directory ?
- if ($rootView->is_dir('/' . $targetOwner . '/files/' . $targetPath)) {
- // does the directory exists for versions too ?
- if ($rootView->is_dir('/' . $sourceOwner . '/files_versions/' . $sourcePath)) {
- // create missing dirs if necessary
- self::createMissingDirectories($targetPath, new \OC\Files\View('/'. $targetOwner));
-
- // move the directory containing the versions
- $rootView->$operation(
- '/' . $sourceOwner . '/files_versions/' . $sourcePath,
- '/' . $targetOwner . '/files_versions/' . $targetPath
- );
- }
- } else if ($versions = Storage::getVersions($sourceOwner, '/' . $sourcePath)) {
- // create missing dirs if necessary
- self::createMissingDirectories($targetPath, new \OC\Files\View('/'. $targetOwner));
-
- foreach ($versions as $v) {
- // move each version one by one to the target directory
- $rootView->$operation(
- '/' . $sourceOwner . '/files_versions/' . $sourcePath.'.v' . $v['version'],
- '/' . $targetOwner . '/files_versions/' . $targetPath.'.v'.$v['version']
- );
- }
- }
-
- // if we moved versions directly for a file, schedule expiration check for that file
- if (!$rootView->is_dir('/' . $targetOwner . '/files/' . $targetPath)) {
- self::scheduleExpire($targetOwner, $targetPath);
- }
-
- }
-
- /**
- * Rollback to an old version of a file.
- *
- * @param string $file file name
- * @param int $revision revision timestamp
- */
- public static function rollback($file, $revision) {
-
- if(\OCP\Config::getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true') {
- // add expected leading slash
- $file = '/' . ltrim($file, '/');
- list($uid, $filename) = self::getUidAndFilename($file);
- $users_view = new \OC\Files\View('/'.$uid);
- $files_view = new \OC\Files\View('/'.\OCP\User::getUser().'/files');
- $versionCreated = false;
-
- //first create a new version
- $version = 'files_versions'.$filename.'.v'.$users_view->filemtime('files'.$filename);
- if ( !$users_view->file_exists($version)) {
-
- $users_view->copy('files'.$filename, 'files_versions'.$filename.'.v'.$users_view->filemtime('files'.$filename));
-
- $versionCreated = true;
- }
-
- // rollback
- if (self::copyFileContents($users_view, 'files_versions' . $filename . '.v' . $revision, 'files' . $filename)) {
- $files_view->touch($file, $revision);
- Storage::scheduleExpire($uid, $file);
- return true;
- } else if ($versionCreated) {
- self::deleteVersion($users_view, $version);
- }
- }
- return false;
-
- }
-
- /**
- * Stream copy file contents from $path1 to $path2
- *
- * @param \OC\Files\View $view view to use for copying
- * @param string $path1 source file to copy
- * @param string $path2 target file
- *
- * @return bool true for success, false otherwise
- */
- private static function copyFileContents($view, $path1, $path2) {
- list($storage1, $internalPath1) = $view->resolvePath($path1);
- list($storage2, $internalPath2) = $view->resolvePath($path2);
-
- $result = $storage2->moveFromStorage($storage1, $internalPath1, $internalPath2);
-
- return ($result !== false);
- }
-
- /**
- * get a list of all available versions of a file in descending chronological order
- * @param string $uid user id from the owner of the file
- * @param string $filename file to find versions of, relative to the user files dir
- * @param string $userFullPath
- * @return array versions newest version first
- */
- public static function getVersions($uid, $filename, $userFullPath = '') {
- $versions = array();
- if (empty($filename)) {
- return $versions;
- }
- // fetch for old versions
- $view = new \OC\Files\View('/' . $uid . '/');
-
- $pathinfo = pathinfo($filename);
- $versionedFile = $pathinfo['basename'];
-
- $dir = \OC\Files\Filesystem::normalizePath(self::VERSIONS_ROOT . '/' . $pathinfo['dirname']);
-
- $dirContent = false;
- if ($view->is_dir($dir)) {
- $dirContent = $view->opendir($dir);
- }
-
- if ($dirContent === false) {
- return $versions;
- }
-
- if (is_resource($dirContent)) {
- while (($entryName = readdir($dirContent)) !== false) {
- if (!\OC\Files\Filesystem::isIgnoredDir($entryName)) {
- $pathparts = pathinfo($entryName);
- $filename = $pathparts['filename'];
- if ($filename === $versionedFile) {
- $pathparts = pathinfo($entryName);
- $timestamp = substr($pathparts['extension'], 1);
- $filename = $pathparts['filename'];
- $key = $timestamp . '#' . $filename;
- $versions[$key]['version'] = $timestamp;
- $versions[$key]['humanReadableTimestamp'] = self::getHumanReadableTimestamp($timestamp);
- if (empty($userFullPath)) {
- $versions[$key]['preview'] = '';
- } else {
- $versions[$key]['preview'] = \OCP\Util::linkToRoute('core_ajax_versions_preview', array('file' => $userFullPath, 'version' => $timestamp));
- }
- $versions[$key]['path'] = \OC\Files\Filesystem::normalizePath($pathinfo['dirname'] . '/' . $filename);
- $versions[$key]['name'] = $versionedFile;
- $versions[$key]['size'] = $view->filesize($dir . '/' . $entryName);
- }
- }
- }
- closedir($dirContent);
- }
-
- // sort with newest version first
- krsort($versions);
-
- return $versions;
- }
-
- /**
- * translate a timestamp into a string like "5 days ago"
- * @param int $timestamp
- * @return string for example "5 days ago"
- */
- private static function getHumanReadableTimestamp($timestamp) {
-
- $diff = time() - $timestamp;
-
- if ($diff < 60) { // first minute
- return $diff . " seconds ago";
- } elseif ($diff < 3600) { //first hour
- return round($diff / 60) . " minutes ago";
- } elseif ($diff < 86400) { // first day
- return round($diff / 3600) . " hours ago";
- } elseif ($diff < 604800) { //first week
- return round($diff / 86400) . " days ago";
- } elseif ($diff < 2419200) { //first month
- return round($diff / 604800) . " weeks ago";
- } elseif ($diff < 29030400) { // first year
- return round($diff / 2419200) . " months ago";
- } else {
- return round($diff / 29030400) . " years ago";
- }
-
- }
-
- /**
- * returns all stored file versions from a given user
- * @param string $uid id of the user
- * @return array with contains two arrays 'all' which contains all versions sorted by age and 'by_file' which contains all versions sorted by filename
- */
- private static function getAllVersions($uid) {
- $view = new \OC\Files\View('/' . $uid . '/');
- $dirs = array(self::VERSIONS_ROOT);
- $versions = array();
-
- while (!empty($dirs)) {
- $dir = array_pop($dirs);
- $files = $view->getDirectoryContent($dir);
-
- foreach ($files as $file) {
- if ($file['type'] === 'dir') {
- array_push($dirs, $file['path']);
- } else {
- $versionsBegin = strrpos($file['path'], '.v');
- $relPathStart = strlen(self::VERSIONS_ROOT);
- $version = substr($file['path'], $versionsBegin + 2);
- $relpath = substr($file['path'], $relPathStart, $versionsBegin - $relPathStart);
- $key = $version . '#' . $relpath;
- $versions[$key] = array('path' => $relpath, 'timestamp' => $version);
- }
- }
- }
-
- // newest version first
- krsort($versions);
-
- $result = array();
-
- foreach ($versions as $key => $value) {
- $size = $view->filesize(self::VERSIONS_ROOT.'/'.$value['path'].'.v'.$value['timestamp']);
- $filename = $value['path'];
-
- $result['all'][$key]['version'] = $value['timestamp'];
- $result['all'][$key]['path'] = $filename;
- $result['all'][$key]['size'] = $size;
-
- $result['by_file'][$filename][$key]['version'] = $value['timestamp'];
- $result['by_file'][$filename][$key]['path'] = $filename;
- $result['by_file'][$filename][$key]['size'] = $size;
- }
-
- return $result;
- }
-
- /**
- * get list of files we want to expire
- * @param array $versions list of versions
- * @param integer $time
- * @return array containing the list of to deleted versions and the size of them
- */
- protected static function getExpireList($time, $versions) {
-
- $size = 0;
- $toDelete = array(); // versions we want to delete
-
- $interval = 1;
- $step = Storage::$max_versions_per_interval[$interval]['step'];
- if (Storage::$max_versions_per_interval[$interval]['intervalEndsAfter'] == -1) {
- $nextInterval = -1;
- } else {
- $nextInterval = $time - Storage::$max_versions_per_interval[$interval]['intervalEndsAfter'];
- }
-
- $firstVersion = reset($versions);
- $firstKey = key($versions);
- $prevTimestamp = $firstVersion['version'];
- $nextVersion = $firstVersion['version'] - $step;
- unset($versions[$firstKey]);
-
- foreach ($versions as $key => $version) {
- $newInterval = true;
- while ($newInterval) {
- if ($nextInterval == -1 || $prevTimestamp > $nextInterval) {
- if ($version['version'] > $nextVersion) {
- //distance between two version too small, mark to delete
- $toDelete[$key] = $version['path'] . '.v' . $version['version'];
- $size += $version['size'];
- \OCP\Util::writeLog('files_versions', 'Mark to expire '. $version['path'] .' next version should be ' . $nextVersion . " or smaller. (prevTimestamp: " . $prevTimestamp . "; step: " . $step, \OCP\Util::DEBUG);
- } else {
- $nextVersion = $version['version'] - $step;
- $prevTimestamp = $version['version'];
- }
- $newInterval = false; // version checked so we can move to the next one
- } else { // time to move on to the next interval
- $interval++;
- $step = Storage::$max_versions_per_interval[$interval]['step'];
- $nextVersion = $prevTimestamp - $step;
- if (Storage::$max_versions_per_interval[$interval]['intervalEndsAfter'] == -1) {
- $nextInterval = -1;
- } else {
- $nextInterval = $time - Storage::$max_versions_per_interval[$interval]['intervalEndsAfter'];
- }
- $newInterval = true; // we changed the interval -> check same version with new interval
- }
- }
- }
-
- return array($toDelete, $size);
-
- }
-
- /**
- * Schedule versions expiration for the given file
- *
- * @param string $uid owner of the file
- * @param string $fileName file/folder for which to schedule expiration
- * @param int|null $versionsSize current versions size
- * @param int $neededSpace requested versions size
- */
- private static function scheduleExpire($uid, $fileName, $versionsSize = null, $neededSpace = 0) {
- $command = new Expire($uid, $fileName, $versionsSize, $neededSpace);
- \OC::$server->getCommandBus()->push($command);
- }
-
- /**
- * Expire versions which exceed the quota
- *
- * @param $filename
- * @param int|null $versionsSize
- * @param int $offset
- * @return bool|int|null
- */
- public static function expire($filename, $versionsSize = null, $offset = 0) {
- $config = \OC::$server->getConfig();
- if($config->getSystemValue('files_versions', Storage::DEFAULTENABLED)=='true') {
- list($uid, $filename) = self::getUidAndFilename($filename);
- if (empty($filename)) {
- // file maybe renamed or deleted
- return false;
- }
- $versionsFileview = new \OC\Files\View('/'.$uid.'/files_versions');
-
- // get available disk space for user
- $softQuota = true;
- $quota = $config->getUserValue($uid, 'files', 'quota', null);
- 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;
- } else {
- $quota = \OCP\Util::computerFileSize($quota);
- }
-
- // make sure that we have the current size of the version history
- if ( $versionsSize === null ) {
- $versionsSize = self::getVersionsSize($uid);
- }
-
- // calculate available space for version history
- // subtract size of files and current versions size from quota
- if ($softQuota) {
- $files_view = new \OC\Files\View('/'.$uid.'/files');
- $rootInfo = $files_view->getFileInfo('/', false);
- $free = $quota-$rootInfo['size']; // remaining free space for user
- if ( $free > 0 ) {
- $availableSpace = ($free * self::DEFAULTMAXSIZE / 100) - ($versionsSize + $offset); // how much space can be used for versions
- } else {
- $availableSpace = $free - $versionsSize - $offset;
- }
- } else {
- $availableSpace = $quota - $offset;
- }
-
- $allVersions = Storage::getVersions($uid, $filename);
-
- $time = time();
- list($toDelete, $sizeOfDeletedVersions) = self::getExpireList($time, $allVersions);
-
- $availableSpace = $availableSpace + $sizeOfDeletedVersions;
- $versionsSize = $versionsSize - $sizeOfDeletedVersions;
-
- // if still not enough free space we rearrange the versions from all files
- if ($availableSpace <= 0) {
- $result = Storage::getAllVersions($uid);
- $allVersions = $result['all'];
-
- foreach ($result['by_file'] as $versions) {
- list($toDeleteNew, $size) = self::getExpireList($time, $versions);
- $toDelete = array_merge($toDelete, $toDeleteNew);
- $sizeOfDeletedVersions += $size;
- }
- $availableSpace = $availableSpace + $sizeOfDeletedVersions;
- $versionsSize = $versionsSize - $sizeOfDeletedVersions;
- }
-
- foreach($toDelete as $key => $path) {
- \OC_Hook::emit('\OCP\Versions', 'preDelete', array('path' => $path));
- self::deleteVersion($versionsFileview, $path);
- \OC_Hook::emit('\OCP\Versions', 'delete', array('path' => $path));
- unset($allVersions[$key]); // update array with the versions we keep
- \OCP\Util::writeLog('files_versions', "Expire: " . $path, \OCP\Util::DEBUG);
- }
-
- // Check if enough space is available after versions are rearranged.
- // If not we delete the oldest versions until we meet the size limit for versions,
- // but always keep the two latest versions
- $numOfVersions = count($allVersions) -2 ;
- $i = 0;
- // sort oldest first and make sure that we start at the first element
- ksort($allVersions);
- reset($allVersions);
- while ($availableSpace < 0 && $i < $numOfVersions) {
- $version = current($allVersions);
- \OC_Hook::emit('\OCP\Versions', 'preDelete', array('path' => $version['path'].'.v'.$version['version']));
- self::deleteVersion($versionsFileview, $version['path'] . '.v' . $version['version']);
- \OC_Hook::emit('\OCP\Versions', 'delete', array('path' => $version['path'].'.v'.$version['version']));
- \OCP\Util::writeLog('files_versions', 'running out of space! Delete oldest version: ' . $version['path'].'.v'.$version['version'] , \OCP\Util::DEBUG);
- $versionsSize -= $version['size'];
- $availableSpace += $version['size'];
- next($allVersions);
- $i++;
- }
-
- return $versionsSize; // finally return the new size of the version history
- }
-
- return false;
- }
-
- /**
- * Create recursively missing directories inside of files_versions
- * that match the given path to a file.
- *
- * @param string $filename $path to a file, relative to the user's
- * "files" folder
- * @param \OC\Files\View $view view on data/user/
- */
- private static function createMissingDirectories($filename, $view) {
- $dirname = \OC\Files\Filesystem::normalizePath(dirname($filename));
- $dirParts = explode('/', $dirname);
- $dir = "/files_versions";
- foreach ($dirParts as $part) {
- $dir = $dir . '/' . $part;
- if (!$view->file_exists($dir)) {
- $view->mkdir($dir);
- }
- }
- }
-
- }
|