99 lines
2.4 KiB
PHP
99 lines
2.4 KiB
PHP
<?php
|
|
/**
|
|
* Copyright (c) 2013 Thomas Müller <thomas.mueller@tmit.eu>
|
|
* This file is licensed under the Affero General Public License version 3 or
|
|
* later.
|
|
* See the COPYING-README file.
|
|
*/
|
|
|
|
/**
|
|
* Class OC_Connector_Sabre_AbortedUploadDetectionPlugin
|
|
*
|
|
* This plugin will verify if the uploaded data has been stored completely.
|
|
* This is done by comparing the content length of the request with the file size on storage.
|
|
*/
|
|
class OC_Connector_Sabre_AbortedUploadDetectionPlugin extends Sabre_DAV_ServerPlugin {
|
|
|
|
/**
|
|
* Reference to main server object
|
|
*
|
|
* @var Sabre_DAV_Server
|
|
*/
|
|
private $server;
|
|
|
|
/**
|
|
* @var \OC\Files\View
|
|
*/
|
|
private $fileView;
|
|
|
|
/**
|
|
* @param \OC\Files\View $view
|
|
*/
|
|
public function __construct($view) {
|
|
$this->fileView = $view;
|
|
}
|
|
|
|
/**
|
|
* This initializes the plugin.
|
|
*
|
|
* This function is called by Sabre_DAV_Server, after
|
|
* addPlugin is called.
|
|
*
|
|
* This method should set up the requires event subscriptions.
|
|
*
|
|
* @param Sabre_DAV_Server $server
|
|
*/
|
|
public function initialize(Sabre_DAV_Server $server) {
|
|
|
|
$this->server = $server;
|
|
|
|
$server->subscribeEvent('afterCreateFile', array($this, 'verifyContentLength'), 10);
|
|
$server->subscribeEvent('afterWriteContent', array($this, 'verifyContentLength'), 10);
|
|
}
|
|
|
|
/**
|
|
* @param string $filePath
|
|
* @param Sabre_DAV_INode $node
|
|
* @throws Sabre_DAV_Exception_BadRequest
|
|
*/
|
|
public function verifyContentLength($filePath, Sabre_DAV_INode $node = null) {
|
|
|
|
// we should only react on PUT which is used for upload
|
|
// e.g. with LOCK this will not work, but LOCK uses createFile() as well
|
|
if ($this->server->httpRequest->getMethod() !== 'PUT') {
|
|
return;
|
|
}
|
|
|
|
// ownCloud chunked upload will be handled in its own plugin
|
|
$chunkHeader = $this->server->httpRequest->getHeader('OC-Chunked');
|
|
if ($chunkHeader) {
|
|
return;
|
|
}
|
|
|
|
// compare expected and actual size
|
|
$expected = $this->getLength();
|
|
if (!$expected) {
|
|
return;
|
|
}
|
|
$actual = $this->fileView->filesize($filePath);
|
|
if ($actual != $expected) {
|
|
$this->fileView->unlink($filePath);
|
|
throw new Sabre_DAV_Exception_BadRequest('expected filesize ' . $expected . ' got ' . $actual);
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
public function getLength() {
|
|
$req = $this->server->httpRequest;
|
|
$length = $req->getHeader('X-Expected-Entity-Length');
|
|
if (!$length) {
|
|
$length = $req->getHeader('Content-Length');
|
|
}
|
|
|
|
return $length;
|
|
}
|
|
}
|