243 lines
6.2 KiB
PHP
243 lines
6.2 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 Jörn Friedrich Dreyer <jfd@butonic.de>
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* @author Julius Härtl <jus@bitgrid.net>
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* @author Lukas Reschke <lukas@statuscode.ch>
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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 <pvince81@owncloud.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\Storage\Wrapper;
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use OC\Files\Filesystem;
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use OCP\Files\Cache\ICacheEntry;
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use OCP\Files\Storage\IStorage;
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class Quota extends Wrapper {
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/**
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* @var int $quota
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*/
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protected $quota;
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/**
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* @var string $sizeRoot
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*/
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protected $sizeRoot;
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private $config;
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/**
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* @param array $parameters
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*/
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public function __construct($parameters) {
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parent::__construct($parameters);
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$this->quota = $parameters['quota'];
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$this->sizeRoot = isset($parameters['root']) ? $parameters['root'] : '';
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$this->config = \OC::$server->getSystemConfig();
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}
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/**
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* @return int quota value
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*/
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public function getQuota() {
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return $this->quota;
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}
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/**
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* @param string $path
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* @param \OC\Files\Storage\Storage $storage
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*/
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protected function getSize($path, $storage = null) {
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if ($this->config->getValue('quota_include_external_storage', false)) {
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$rootInfo = Filesystem::getFileInfo('', 'ext');
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if ($rootInfo) {
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return $rootInfo->getSize(true);
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}
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return \OCP\Files\FileInfo::SPACE_NOT_COMPUTED;
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} else {
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if (is_null($storage)) {
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$cache = $this->getCache();
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} else {
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$cache = $storage->getCache();
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}
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$data = $cache->get($path);
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if ($data instanceof ICacheEntry and isset($data['size'])) {
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return $data['size'];
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} else {
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return \OCP\Files\FileInfo::SPACE_NOT_COMPUTED;
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}
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}
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}
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/**
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* Get free space as limited by the quota
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*
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* @param string $path
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* @return int
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*/
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public function free_space($path) {
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if ($this->quota < 0 || strpos($path, 'cache') === 0 || strpos($path, 'uploads') === 0) {
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return $this->storage->free_space($path);
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} else {
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$used = $this->getSize($this->sizeRoot);
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if ($used < 0) {
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return \OCP\Files\FileInfo::SPACE_NOT_COMPUTED;
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} else {
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$free = $this->storage->free_space($path);
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$quotaFree = max($this->quota - $used, 0);
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// if free space is known
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if ($free >= 0) {
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$free = min($free, $quotaFree);
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} else {
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$free = $quotaFree;
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}
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return $free;
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}
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}
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}
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/**
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* see http://php.net/manual/en/function.file_put_contents.php
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*
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* @param string $path
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* @param string $data
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* @return bool
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*/
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public function file_put_contents($path, $data) {
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$free = $this->free_space($path);
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if ($free < 0 or strlen($data) < $free) {
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return $this->storage->file_put_contents($path, $data);
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} else {
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return false;
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}
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}
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/**
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* see http://php.net/manual/en/function.copy.php
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*
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* @param string $source
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* @param string $target
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* @return bool
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*/
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public function copy($source, $target) {
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$free = $this->free_space($target);
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if ($free < 0 or $this->getSize($source) < $free) {
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return $this->storage->copy($source, $target);
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} else {
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return false;
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}
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}
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/**
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* see http://php.net/manual/en/function.fopen.php
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*
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* @param string $path
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* @param string $mode
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* @return resource
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*/
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public function fopen($path, $mode) {
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$source = $this->storage->fopen($path, $mode);
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// don't apply quota for part files
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if (!$this->isPartFile($path)) {
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$free = $this->free_space($path);
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if ($source && $free >= 0 && $mode !== 'r' && $mode !== 'rb') {
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// only apply quota for files, not metadata, trash or others
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if ($this->shouldApplyQuota($path)) {
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return \OC\Files\Stream\Quota::wrap($source, $free);
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}
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}
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}
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return $source;
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}
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/**
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* Checks whether the given path is a part file
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*
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* @param string $path Path that may identify a .part file
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* @return string File path without .part extension
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* @note this is needed for reusing keys
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*/
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private function isPartFile($path) {
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$extension = pathinfo($path, PATHINFO_EXTENSION);
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return ($extension === 'part');
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}
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/**
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* Only apply quota for files, not metadata, trash or others
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*/
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private function shouldApplyQuota(string $path): bool {
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return strpos(ltrim($path, '/'), 'files/') === 0;
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}
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/**
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* @param IStorage $sourceStorage
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* @param string $sourceInternalPath
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* @param string $targetInternalPath
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* @return bool
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*/
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public function copyFromStorage(IStorage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
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$free = $this->free_space($targetInternalPath);
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if ($free < 0 or $this->getSize($sourceInternalPath, $sourceStorage) < $free) {
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return $this->storage->copyFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
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} else {
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return false;
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}
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}
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/**
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* @param IStorage $sourceStorage
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* @param string $sourceInternalPath
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* @param string $targetInternalPath
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* @return bool
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*/
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public function moveFromStorage(IStorage $sourceStorage, $sourceInternalPath, $targetInternalPath) {
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$free = $this->free_space($targetInternalPath);
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if ($free < 0 or $this->getSize($sourceInternalPath, $sourceStorage) < $free) {
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return $this->storage->moveFromStorage($sourceStorage, $sourceInternalPath, $targetInternalPath);
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} else {
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return false;
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}
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}
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public function mkdir($path) {
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$free = $this->free_space($path);
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if ($this->shouldApplyQuota($path) && $free === 0.0) {
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return false;
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}
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return parent::mkdir($path);
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}
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public function touch($path, $mtime = null) {
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$free = $this->free_space($path);
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if ($free === 0.0) {
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return false;
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}
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return parent::touch($path, $mtime);
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}
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}
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