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<?php
/**
* This plugin check user quota and deny creating files when they exceeds the quota.
*
* @copyright Copyright (C) 2012 entreCables S.L. All rights reserved.
* @author Sergio Cambra
* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
*/
class OC_Connector_Sabre_QuotaPlugin extends Sabre_DAV_ServerPlugin {
/**
* Reference to main server object
*
* @var Sabre_DAV_Server
*/
private $server;
/**
* 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
* @return void
*/
public function initialize(Sabre_DAV_Server $server) {
$this->server = $server;
$this->server->subscribeEvent('beforeWriteContent', array($this, 'checkQuota'), 10);
$this->server->subscribeEvent('beforeCreateFile', array($this, 'checkQuota'), 10);
}
/**
* This method is called before any HTTP method and forces users to be authenticated
*
* @param string $method
* @throws Sabre_DAV_Exception
* @return bool
*/
public function checkQuota($uri, $data = null) {
$expected = $this->server->httpRequest->getHeader('X-Expected-Entity-Length');
$length = $expected ? $expected : $this->server->httpRequest->getHeader('Content-Length');
if ($length) {
if (substr($uri, 0, 1)!=='/') {
$uri='/'.$uri;
}
list($parentUri, $newName) = Sabre_DAV_URLUtil::splitPath($uri);
if ($length > OC_Filesystem::free_space($parentUri)) {
throw new Sabre_DAV_Exception_InsufficientStorage();
}
}
return true;
}
}
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