67 lines
1.5 KiB
PHP
67 lines
1.5 KiB
PHP
<?php
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/**
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* Copyright (c) 2012 Bart Visscher <bartv@thisnet.nl>
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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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class OC_FileChunking {
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protected $info;
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protected $cache;
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static public function decodeName($name) {
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preg_match('/(?P<name>.*)-chunking-(?P<transferid>\d+)-(?P<chunkcount>\d+)-(?P<index>\d+)/', $name, $matches);
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return $matches;
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}
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public function __construct($info) {
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$this->info = $info;
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}
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public function getPrefix() {
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$name = $this->info['name'];
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$transferid = $this->info['transferid'];
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$chunkcount = $this->info['chunkcount'];
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return $name.'-chunking-'.$transferid.'-'.$chunkcount.'-';
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}
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protected function getCache() {
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if (!isset($this->cache)) {
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$this->cache = new OC_Cache_File();
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}
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return $this->cache;
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}
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public function store($index, $data) {
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$cache = $this->getCache();
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$name = $this->getPrefix().$index;
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$cache->set($name, $data);
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}
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public function isComplete() {
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$prefix = $this->getPrefix();
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$parts = 0;
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$cache = $this->getCache();
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for($i=0; $i < $this->info['chunkcount']; $i++) {
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if ($cache->hasKey($prefix.$i)) {
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$parts ++;
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}
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}
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return $parts == $this->info['chunkcount'];
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}
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public function assemble($f) {
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$cache = $this->getCache();
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$prefix = $this->getPrefix();
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for($i=0; $i < $this->info['chunkcount']; $i++) {
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$chunk = $cache->get($prefix.$i);
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$cache->remove($prefix.$i);
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fwrite($f,$chunk);
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}
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fclose($f);
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}
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}
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