148 lines
3.8 KiB
PHP
148 lines
3.8 KiB
PHP
<?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 {
|
|
protected $info;
|
|
protected $cache;
|
|
|
|
static public function decodeName($name) {
|
|
preg_match('/(?P<name>.*)-chunking-(?P<transferid>\d+)-(?P<chunkcount>\d+)-(?P<index>\d+)/', $name, $matches);
|
|
return $matches;
|
|
}
|
|
|
|
public function __construct($info) {
|
|
$this->info = $info;
|
|
}
|
|
|
|
public function getPrefix() {
|
|
$name = $this->info['name'];
|
|
$transferid = $this->info['transferid'];
|
|
|
|
return $name.'-chunking-'.$transferid.'-';
|
|
}
|
|
|
|
protected function getCache() {
|
|
if (!isset($this->cache)) {
|
|
$this->cache = new OC_Cache_File();
|
|
}
|
|
return $this->cache;
|
|
}
|
|
|
|
public function store($index, $data) {
|
|
$cache = $this->getCache();
|
|
$name = $this->getPrefix().$index;
|
|
$cache->set($name, $data);
|
|
}
|
|
|
|
public function isComplete() {
|
|
$prefix = $this->getPrefix();
|
|
$parts = 0;
|
|
$cache = $this->getCache();
|
|
for($i=0; $i < $this->info['chunkcount']; $i++) {
|
|
if ($cache->hasKey($prefix.$i)) {
|
|
$parts ++;
|
|
}
|
|
}
|
|
return $parts == $this->info['chunkcount'];
|
|
}
|
|
|
|
public function assemble($f) {
|
|
$cache = $this->getCache();
|
|
$prefix = $this->getPrefix();
|
|
$count = 0;
|
|
for($i=0; $i < $this->info['chunkcount']; $i++) {
|
|
$chunk = $cache->get($prefix.$i);
|
|
$cache->remove($prefix.$i);
|
|
$count += fwrite($f,$chunk);
|
|
}
|
|
return $count;
|
|
}
|
|
|
|
public function signature_split($orgfile, $input) {
|
|
$info = unpack('n', fread($input, 2));
|
|
$blocksize = $info[1];
|
|
$this->info['transferid'] = mt_rand();
|
|
$count = 0;
|
|
$needed = array();
|
|
$cache = $this->getCache();
|
|
$prefix = $this->getPrefix();
|
|
while (!feof($orgfile)) {
|
|
$new_md5 = fread($input, 16);
|
|
if (feof($input)) {
|
|
break;
|
|
}
|
|
$data = fread($orgfile, $blocksize);
|
|
$org_md5 = md5($data, true);
|
|
if ($org_md5 == $new_md5) {
|
|
$cache->set($prefix.$count, $data);
|
|
} else {
|
|
$needed[] = $count;
|
|
}
|
|
$count++;
|
|
}
|
|
return array(
|
|
'transferid' => $this->info['transferid'],
|
|
'needed' => $needed,
|
|
'count' => $count,
|
|
);
|
|
}
|
|
|
|
public function file_assemble($path) {
|
|
$absolutePath = \OC\Files\Filesystem::normalizePath(\OC\Files\Filesystem::getView()->getAbsolutePath($path));
|
|
$data = '';
|
|
// use file_put_contents as method because that best matches what this function does
|
|
if (OC_FileProxy::runPreProxies('file_put_contents', $absolutePath, $data) && \OC\Files\Filesystem::isValidPath($path)) {
|
|
$path = \OC\Files\Filesystem::getView()->getRelativePath($absolutePath);
|
|
$exists = \OC\Files\Filesystem::file_exists($path);
|
|
$run = true;
|
|
if(!$exists) {
|
|
OC_Hook::emit(
|
|
\OC\Files\Filesystem::CLASSNAME,
|
|
\OC\Files\Filesystem::signal_create,
|
|
array(
|
|
\OC\Files\Filesystem::signal_param_path => $path,
|
|
\OC\Files\Filesystem::signal_param_run => &$run
|
|
)
|
|
);
|
|
}
|
|
OC_Hook::emit(
|
|
\OC\Files\Filesystem::CLASSNAME,
|
|
\OC\Files\Filesystem::signal_write,
|
|
array(
|
|
\OC\Files\Filesystem::signal_param_path => $path,
|
|
\OC\Files\Filesystem::signal_param_run => &$run
|
|
)
|
|
);
|
|
if(!$run) {
|
|
return false;
|
|
}
|
|
$target = \OC\Files\Filesystem::fopen($path, 'w');
|
|
if($target) {
|
|
$count = $this->assemble($target);
|
|
fclose($target);
|
|
if(!$exists) {
|
|
OC_Hook::emit(
|
|
\OC\Files\Filesystem::CLASSNAME,
|
|
\OC\Files\Filesystem::signal_post_create,
|
|
array( \OC\Files\Filesystem::signal_param_path => $path)
|
|
);
|
|
}
|
|
OC_Hook::emit(
|
|
\OC\Files\Filesystem::CLASSNAME,
|
|
\OC\Files\Filesystem::signal_post_write,
|
|
array( \OC\Files\Filesystem::signal_param_path => $path)
|
|
);
|
|
OC_FileProxy::runPostProxies('file_put_contents', $absolutePath, $count);
|
|
return $count > 0;
|
|
}else{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|