[Pkg-owncloud-commits] [owncloud] 213/394: fix checking quota in webdav, adding a sabredav plugin

[David Prévot]

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taffit pushed a commit to annotated tag v4.5.10
in repository owncloud.

commit c99348113a69a4e27cedeaf1fb9e94821d2e456a
Author: scambra <sergio at entrecables.com>
Date:   Fri Apr 20 11:39:30 2012 +0200

    fix checking quota in webdav, adding a sabredav plugin
---
 apps/files/appinfo/remote.php       |    1 +
 lib/connector/sabre/quotaplugin.php |   57 +++++++++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+)

diff --git a/apps/files/appinfo/remote.php b/apps/files/appinfo/remote.php
index b5ede65..75efe5c 100644
--- a/apps/files/appinfo/remote.php
+++ b/apps/files/appinfo/remote.php
@@ -43,6 +43,7 @@ $server->setBaseUri($baseuri);
 $server->addPlugin(new Sabre_DAV_Auth_Plugin($authBackend,'ownCloud'));
 $server->addPlugin(new Sabre_DAV_Locks_Plugin($lockBackend));
 $server->addPlugin(new Sabre_DAV_Browser_Plugin(false)); // Show something in the Browser, but no upload
+$server->addPlugin(new OC_Connector_Sabre_QuotaPlugin());
 
 // And off we go!
 $server->exec();
diff --git a/lib/connector/sabre/quotaplugin.php b/lib/connector/sabre/quotaplugin.php
new file mode 100644
index 0000000..67177c2
--- /dev/null
+++ b/lib/connector/sabre/quotaplugin.php
@@ -0,0 +1,57 @@
+<?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('Quota exceeded. File is too big.');
+			}
+		}
+		return true;
+	}
+}

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