133 lines
2.8 KiB
PHP
133 lines
2.8 KiB
PHP
<?php
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/**
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* Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
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* This file is licensed under the Affero General Public License version 3 or
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* later.
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* See the COPYING-README file.
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*/
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namespace OC\Files\Storage\Wrapper;
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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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/**
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* @param array $parameters
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*/
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public function __construct($parameters) {
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$this->storage = $parameters['storage'];
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$this->quota = $parameters['quota'];
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$this->sizeRoot = isset($parameters['root']) ? $parameters['root'] : '';
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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 $path
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*/
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protected function getSize($path) {
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$cache = $this->getCache();
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$data = $cache->get($path);
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if (is_array($data) and isset($data['size'])) {
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if (isset($data['unencrypted_size'])
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&& $data['unencrypted_size'] > 0
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) {
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return $data['unencrypted_size'];
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}
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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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* 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) {
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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 = $this->free_space('');
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if ($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 = $this->free_space('');
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if ($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, $mode);
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$free = $this->free_space('');
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if ($source && $free >= 0 && $mode !== 'r' && $mode !== 'rb') {
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return \OC\Files\Stream\Quota::wrap($source, $free);
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} else {
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return $source;
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}
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}
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}
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