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<?php
/**
* Copyright (c) 2012 Bart Visscher <bartv@thisnet.nl>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
class OC_FileChunking {
static public function decodeName($name) {
preg_match('/(?P<name>.*)-chunking-(?P<transferid>\d+)-(?P<chunkcount>\d+)-(?P<index>\d+)/', $name, $matches);
return $matches;
}
static public function getPrefix($name, $transferid, $chunkcount) {
return $name.'-chunking-'.$transferid.'-'.$chunkcount.'-';
}
static public function store($name, $data) {
$cache = new OC_Cache_File();
$cache->set($name, $data);
}
static public function isComplete($info) {
$prefix = OC_FileChunking::getPrefix($info['name'],
$info['transferid'],
$info['chunkcount']
);
$parts = 0;
$cache = new OC_Cache_File();
for($i=0; $i < $info['chunkcount']; $i++) {
if ($cache->hasKey($prefix.$i)) {
$parts ++;
}
}
return $parts == $info['chunkcount'];
}
static public function assemble($info, $f) {
$cache = new OC_Cache_File();
$prefix = OC_FileChunking::getPrefix($info['name'],
$info['transferid'],
$info['chunkcount']
);
for($i=0; $i < $info['chunkcount']; $i++) {
$chunk = $cache->get($prefix.$i);
$cache->remove($prefix.$i);
fwrite($f,$chunk);
}
fclose($f);
}
}