remove old sabredav files

18 files changed, 0 insertions, 2816 deletions

diff --git a/3rdparty/Sabre/DAVACL/AbstractPrincipalCollection.php b/3rdparty/Sabre/DAVACL/AbstractPrincipalCollection.php
deleted file mode 100644
index a361e054610..00000000000
--- a/3rdparty/Sabre/DAVACL/AbstractPrincipalCollection.php
+++ /dev/null
@@ -1,121 +0,0 @@
-<?php
-
-/**
- * Principals Collection
- *
- * This is a helper class that easily allows you to create a collection that 
- * has a childnode for every principal.
- * 
- * To use this class, simply implement the getChildForPrincipal method. 
- *
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-abstract class Sabre_DAVACL_AbstractPrincipalCollection extends Sabre_DAV_Collection  {
-
-    /**
-     * Node or 'directory' name. 
-     * 
-     * @var string 
-     */
-    protected $path;
-
-    /**
-     * Principal backend 
-     * 
-     * @var Sabre_DAVACL_IPrincipalBackend 
-     */
-    protected $principalBackend;
-
-    /**
-     * If this value is set to true, it effectively disables listing of users
-     * it still allows user to find other users if they have an exact url. 
-     * 
-     * @var bool 
-     */
-    public $disableListing = false;
-
-    /**
-     * Creates the object
-     *
-     * This object must be passed the principal backend. This object will 
-     * filter all principals from a specfied prefix ($principalPrefix). The 
-     * default is 'principals', if your principals are stored in a different 
-     * collection, override $principalPrefix
-     * 
-     * 
-     * @param Sabre_DAVACL_IPrincipalBackend $principalBackend 
-     * @param string $principalPrefix
-     * @param string $nodeName
-     */
-    public function __construct(Sabre_DAVACL_IPrincipalBackend $principalBackend, $principalPrefix = 'principals') {
-
-        $this->principalPrefix = $principalPrefix;
-        $this->principalBackend = $principalBackend;
-
-    }
-
-    /**
-     * This method returns a node for a principal.
-     *
-     * The passed array contains principal information, and is guaranteed to
-     * at least contain a uri item. Other properties may or may not be
-     * supplied by the authentication backend.
-     * 
-     * @param array $principalInfo 
-     * @return Sabre_DAVACL_IPrincipal
-     */
-    abstract function getChildForPrincipal(array $principalInfo);
-
-    /**
-     * Returns the name of this collection. 
-     * 
-     * @return string 
-     */
-    public function getName() {
-
-        list(,$name) = Sabre_DAV_URLUtil::splitPath($this->principalPrefix);
-        return $name; 
-
-    }
-
-    /**
-     * Return the list of users 
-     * 
-     * @return void
-     */
-    public function getChildren() {
-
-        if ($this->disableListing)
-            throw new Sabre_DAV_Exception_MethodNotAllowed('Listing members of this collection is disabled');
-
-        $children = array();
-        foreach($this->principalBackend->getPrincipalsByPrefix($this->principalPrefix) as $principalInfo) {
-
-            $children[] = $this->getChildForPrincipal($principalInfo);
-
-
-        }
-        return $children; 
-
-    }
-
-    /**
-     * Returns a child object, by its name.
-     * 
-     * @param string $name
-     * @throws Sabre_DAV_Exception_FileNotFound
-     * @return Sabre_DAV_IPrincipal
-     */
-    public function getChild($name) {
-
-        $principalInfo = $this->principalBackend->getPrincipalByPath($this->principalPrefix . '/' . $name);
-        if (!$principalInfo) throw new Sabre_DAV_Exception_FileNotFound('Principal with name ' . $name . ' not found');
-        return $this->getChildForPrincipal($principalInfo);
-
-    }
-
-}
diff --git a/3rdparty/Sabre/DAVACL/Exception/AceConflict.php b/3rdparty/Sabre/DAVACL/Exception/AceConflict.php
deleted file mode 100644
index d10aeb4345c..00000000000
--- a/3rdparty/Sabre/DAVACL/Exception/AceConflict.php
+++ /dev/null
@@ -1,34 +0,0 @@
-<?php
-
-/**
- * Sabre_DAVACL_Exception_AceConflict 
- * 
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_DAVACL_Exception_AceConflict extends Sabre_DAV_Exception_Conflict {
-
-    /**
-     * Adds in extra information in the xml response.
-     *
-     * This method adds the {DAV:}no-ace-conflict element as defined in rfc3744
-     * 
-     * @param Sabre_DAV_Server $server 
-     * @param DOMElement $errorNode 
-     * @return void
-     */
-    public function serialize(Sabre_DAV_Server $server,DOMElement $errorNode) {
-        
-        $doc = $errorNode->ownerDocument;
-        
-        $np = $doc->createElementNS('DAV:','d:no-ace-conflict');
-        $errorNode->appendChild($np);
-
-    }
-
-}
-
-?>
diff --git a/3rdparty/Sabre/DAVACL/Exception/NeedPrivileges.php b/3rdparty/Sabre/DAVACL/Exception/NeedPrivileges.php
deleted file mode 100644
index 024ab6641f3..00000000000
--- a/3rdparty/Sabre/DAVACL/Exception/NeedPrivileges.php
+++ /dev/null
@@ -1,80 +0,0 @@
-<?php
-
-/**
- * NeedPrivileges 
- *
- * The 403-need privileges is thrown when a user didn't have the appropriate
- * permissions to perform an operation
- * 
- * @package Sabre
- * @subpackage DAVACL
- * @version $Id$
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_DAVACL_Exception_NeedPrivileges extends Sabre_DAV_Exception_Forbidden {
-
-    /**
-     * The relevant uri 
-     * 
-     * @var string 
-     */
-    protected $uri;
-
-    /**
-     * The privileges the user didn't have. 
-     * 
-     * @var array 
-     */
-    protected $privileges;
-
-    /**
-     * Constructor 
-     * 
-     * @param string $uri 
-     * @param array $privileges 
-     */
-    public function __construct($uri,array $privileges) {
-
-        $this->uri = $uri;
-        $this->privileges = $privileges;
-
-    }
-
-    /**
-     * Adds in extra information in the xml response.
-     *
-     * This method adds the {DAV:}need-privileges element as defined in rfc3744
-     * 
-     * @param Sabre_DAV_Server $server 
-     * @param DOMElement $errorNode 
-     * @return void
-     */
-    public function serialize(Sabre_DAV_Server $server,DOMElement $errorNode) {
-        
-        $doc = $errorNode->ownerDocument;
-        
-        $np = $doc->createElementNS('DAV:','d:need-privileges');
-        $errorNode->appendChild($np);
-
-        foreach($this->privileges as $privilege) {
-
-            $resource = $doc->createElementNS('DAV:','d:resource');
-            $np->appendChild($resource);
-
-            $resource->appendChild($doc->createElementNS('DAV:','d:href',$server->getBaseUri() . $this->uri));
-
-            $priv = $doc->createElementNS('DAV:','d:privilege');
-            $resource->appendChild($priv);
-
-            preg_match('/^{([^}]*)}(.*)$/',$privilege,$privilegeParts);
-            $priv->appendChild($doc->createElementNS($privilegeParts[1],'d:' . $privilegeParts[2]));
-
-
-        }
-
-    }
-
-}
-
diff --git a/3rdparty/Sabre/DAVACL/Exception/NoAbstract.php b/3rdparty/Sabre/DAVACL/Exception/NoAbstract.php
deleted file mode 100644
index 60f49ebff4a..00000000000
--- a/3rdparty/Sabre/DAVACL/Exception/NoAbstract.php
+++ /dev/null
@@ -1,34 +0,0 @@
-<?php
-
-/**
- * Sabre_DAVACL_Exception_NoAbstract
- * 
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_DAVACL_Exception_NoAbstract extends Sabre_DAV_Exception_PreconditionFailed {
-
-    /**
-     * Adds in extra information in the xml response.
-     *
-     * This method adds the {DAV:}no-abstract element as defined in rfc3744
-     * 
-     * @param Sabre_DAV_Server $server 
-     * @param DOMElement $errorNode 
-     * @return void
-     */
-    public function serialize(Sabre_DAV_Server $server,DOMElement $errorNode) {
-        
-        $doc = $errorNode->ownerDocument;
-        
-        $np = $doc->createElementNS('DAV:','d:no-abstract');
-        $errorNode->appendChild($np);
-
-    }
-
-}
-
-?>
diff --git a/3rdparty/Sabre/DAVACL/Exception/NotRecognizedPrincipal.php b/3rdparty/Sabre/DAVACL/Exception/NotRecognizedPrincipal.php
deleted file mode 100644
index e056dc9e4f7..00000000000
--- a/3rdparty/Sabre/DAVACL/Exception/NotRecognizedPrincipal.php
+++ /dev/null
@@ -1,34 +0,0 @@
-<?php
-
-/**
- * Sabre_DAVACL_Exception_NotRecognizedPrincipal
- * 
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_DAVACL_Exception_NotRecognizedPrincipal extends Sabre_DAV_Exception_PreconditionFailed {
-
-    /**
-     * Adds in extra information in the xml response.
-     *
-     * This method adds the {DAV:}recognized-principal element as defined in rfc3744
-     * 
-     * @param Sabre_DAV_Server $server 
-     * @param DOMElement $errorNode 
-     * @return void
-     */
-    public function serialize(Sabre_DAV_Server $server,DOMElement $errorNode) {
-        
-        $doc = $errorNode->ownerDocument;
-        
-        $np = $doc->createElementNS('DAV:','d:recognized-principal');
-        $errorNode->appendChild($np);
-
-    }
-
-}
-
-?>
diff --git a/3rdparty/Sabre/DAVACL/Exception/NotSupportedPrivilege.php b/3rdparty/Sabre/DAVACL/Exception/NotSupportedPrivilege.php
deleted file mode 100644
index 27db7cdd7dd..00000000000
--- a/3rdparty/Sabre/DAVACL/Exception/NotSupportedPrivilege.php
+++ /dev/null
@@ -1,34 +0,0 @@
-<?php
-
-/**
- * Sabre_DAVACL_Exception_NotSupportedPrivilege
- * 
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_DAVACL_Exception_NotSupportedPrivilege extends Sabre_DAV_Exception_PreconditionFailed {
-
-    /**
-     * Adds in extra information in the xml response.
-     *
-     * This method adds the {DAV:}not-supported-privilege element as defined in rfc3744
-     * 
-     * @param Sabre_DAV_Server $server 
-     * @param DOMElement $errorNode 
-     * @return void
-     */
-    public function serialize(Sabre_DAV_Server $server,DOMElement $errorNode) {
-        
-        $doc = $errorNode->ownerDocument;
-        
-        $np = $doc->createElementNS('DAV:','d:not-supported-privilege');
-        $errorNode->appendChild($np);
-
-    }
-
-}
-
-?>
diff --git a/3rdparty/Sabre/DAVACL/IACL.php b/3rdparty/Sabre/DAVACL/IACL.php
deleted file mode 100644
index 506be4248d7..00000000000
--- a/3rdparty/Sabre/DAVACL/IACL.php
+++ /dev/null
@@ -1,58 +0,0 @@
-<?php
-
-/**
- * ACL-enabled node
- *
- * If you want to add WebDAV ACL to a node, you must implement this class
- * 
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-interface Sabre_DAVACL_IACL extends Sabre_DAV_INode {
-
-    /**
-     * Returns the owner principal
-     *
-     * This must be a url to a principal, or null if there's no owner 
-     * 
-     * @return string|null
-     */
-    function getOwner();
-
-    /**
-     * Returns a group principal
-     *
-     * This must be a url to a principal, or null if there's no owner
-     * 
-     * @return string|null 
-     */
-    function getGroup();
-
-    /**
-     * Returns a list of ACE's for this node.
-     *
-     * Each ACE has the following properties:
-     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are 
-     *     currently the only supported privileges
-     *   * 'principal', a url to the principal who owns the node
-     *   * 'protected' (optional), indicating that this ACE is not allowed to 
-     *      be updated. 
-     * 
-     * @return array 
-     */
-    function getACL();
-
-    /**
-     * Updates the ACL
-     *
-     * This method will receive a list of new ACE's. 
-     * 
-     * @param array $acl 
-     * @return void
-     */
-    function setACL(array $acl);
-
-}
diff --git a/3rdparty/Sabre/DAVACL/IPrincipal.php b/3rdparty/Sabre/DAVACL/IPrincipal.php
deleted file mode 100644
index 7868811db76..00000000000
--- a/3rdparty/Sabre/DAVACL/IPrincipal.php
+++ /dev/null
@@ -1,75 +0,0 @@
-<?php
-
-/**
- * IPrincipal interface
- * 
- * Implement this interface to define your own principals
- * 
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-interface Sabre_DAVACL_IPrincipal extends Sabre_DAV_INode {
-
-    /**
-     * Returns a list of altenative urls for a principal
-     * 
-     * This can for example be an email address, or ldap url.
-     * 
-     * @return array 
-     */
-    function getAlternateUriSet();
-
-    /**
-     * Returns the full principal url 
-     * 
-     * @return string 
-     */
-    function getPrincipalUrl();
-
-    /**
-     * Returns the list of group members
-     * 
-     * If this principal is a group, this function should return
-     * all member principal uri's for the group. 
-     * 
-     * @return array
-     */
-    function getGroupMemberSet();
-
-    /**
-     * Returns the list of groups this principal is member of
-     * 
-     * If this principal is a member of a (list of) groups, this function
-     * should return a list of principal uri's for it's members. 
-     * 
-     * @return array 
-     */
-    function getGroupMembership();
-
-    /**
-     * Sets a list of group members
-     *
-     * If this principal is a group, this method sets all the group members.
-     * The list of members is always overwritten, never appended to.
-     * 
-     * This method should throw an exception if the members could not be set. 
-     * 
-     * @param array $principals 
-     * @return void 
-     */
-    function setGroupMemberSet(array $principals);
-
-    /**
-     * Returns the displayname
-     *
-     * This should be a human readable name for the principal.
-     * If none is available, return the nodename. 
-     * 
-     * @return string 
-     */
-    function getDisplayName();
-
-}
diff --git a/3rdparty/Sabre/DAVACL/IPrincipalBackend.php b/3rdparty/Sabre/DAVACL/IPrincipalBackend.php
deleted file mode 100644
index 8899f6f80df..00000000000
--- a/3rdparty/Sabre/DAVACL/IPrincipalBackend.php
+++ /dev/null
@@ -1,73 +0,0 @@
-<?php
-
-/**
- * Implement this interface to create your own principal backends.
- *
- * Creating backends for principals is entirely optional. You can also 
- * implement Sabre_DAVACL_IPrincipal directly. This interface is used solely by 
- * Sabre_DAVACL_AbstractPrincipalCollection.
- *
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-interface Sabre_DAVACL_IPrincipalBackend {
-
-    /**
-     * Returns a list of principals based on a prefix.
-     *
-     * This prefix will often contain something like 'principals'. You are only 
-     * expected to return principals that are in this base path.
-     *
-     * You are expected to return at least a 'uri' for every user, you can 
-     * return any additional properties if you wish so. Common properties are:
-     *   {DAV:}displayname 
-     *   {http://sabredav.org/ns}email-address - This is a custom SabreDAV 
-     *     field that's actualy injected in a number of other properties. If
-     *     you have an email address, use this property.
-     * 
-     * @param string $prefixPath 
-     * @return array 
-     */
-    function getPrincipalsByPrefix($prefixPath);
-
-    /**
-     * Returns a specific principal, specified by it's path.
-     * The returned structure should be the exact same as from 
-     * getPrincipalsByPrefix. 
-     * 
-     * @param string $path 
-     * @return array 
-     */
-    function getPrincipalByPath($path);
-
-    /**
-     * Returns the list of members for a group-principal 
-     * 
-     * @param string $principal 
-     * @return array 
-     */
-    function getGroupMemberSet($principal);
-
-    /**
-     * Returns the list of groups a principal is a member of 
-     * 
-     * @param string $principal 
-     * @return array 
-     */
-    function getGroupMembership($principal);
-
-    /**
-     * Updates the list of group members for a group principal.
-     *
-     * The principals should be passed as a list of uri's. 
-     * 
-     * @param string $principal 
-     * @param array $members 
-     * @return void
-     */
-    function setGroupMemberSet($principal, array $members); 
-
-}
diff --git a/3rdparty/Sabre/DAVACL/Plugin.php b/3rdparty/Sabre/DAVACL/Plugin.php
deleted file mode 100644
index b964bdb5dec..00000000000
--- a/3rdparty/Sabre/DAVACL/Plugin.php
+++ /dev/null
@@ -1,1238 +0,0 @@
-<?php
-
-/**
- * SabreDAV ACL Plugin
- *
- * This plugin provides funcitonality to enforce ACL permissions.
- * ACL is defined in RFC3744.
- *
- * In addition it also provides support for the {DAV:}current-user-principal 
- * property, defined in RFC5397 and the {DAV:}expand-property report, as 
- * defined in RFC3253. 
- * 
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_DAVACL_Plugin extends Sabre_DAV_ServerPlugin {
-
-    /**
-     * Recursion constants
-     *
-     * This only checks the base node
-     */
-    const R_PARENT = 1;
-
-    /**
-     * Recursion constants
-     *
-     * This checks every node in the tree
-     */
-    const R_RECURSIVE = 2;
-
-    /**
-     * Recursion constants
-     *
-     * This checks every parentnode in the tree, but not leaf-nodes.
-     */
-    const R_RECURSIVEPARENTS = 3;
-
-    /**
-     * Reference to server object. 
-     * 
-     * @var Sabre_DAV_Server 
-     */
-    protected $server;
-
-    /**
-     * List of urls containing principal collections.
-     * Modify this if your principals are located elsewhere. 
-     * 
-     * @var array
-     */
-    public $principalCollectionSet = array(
-        'principals',
-    );
-
-    /**
-     * By default ACL is only enforced for nodes that have ACL support (the 
-     * ones that implement Sabre_DAVACL_IACL). For any other node, access is 
-     * always granted.
-     *
-     * To override this behaviour you can turn this setting off. This is useful 
-     * if you plan to fully support ACL in the entire tree.
-     *
-     * @var bool 
-     */
-    public $allowAccessToNodesWithoutACL = true;
-
-    /**
-     * By default nodes that are inaccessible by the user, can still be seen
-     * in directory listings (PROPFIND on parent with Depth: 1)
-     *
-     * In certain cases it's desirable to hide inaccessible nodes. Setting this 
-     * to true will cause these nodes to be hidden from directory listings.
-     * 
-     * @var bool 
-     */
-    public $hideNodesFromListings = false;
-
-    /**
-     * This string is prepended to the username of the currently logged in 
-     * user. This allows the plugin to determine the principal path based on 
-     * the username.
-     * 
-     * @var string
-     */
-    public $defaultUsernamePath = 'principals';
-
-    /**
-     * Returns a list of features added by this plugin.
-     *
-     * This list is used in the response of a HTTP OPTIONS request.
-     * 
-     * @return array 
-     */
-    public function getFeatures() {
-
-        return array('access-control');
-
-    }
-
-    /**
-     * Returns a list of available methods for a given url 
-     * 
-     * @param string $uri 
-     * @return array 
-     */
-    public function getMethods($uri) {
-
-        return array('ACL');
-
-    }
-
-    /**
-     * Returns a plugin name.
-     * 
-     * Using this name other plugins will be able to access other plugins
-     * using Sabre_DAV_Server::getPlugin 
-     * 
-     * @return string 
-     */
-    public function getPluginName() {
-
-        return 'acl';
-
-    }
-
-    /**
-     * Returns a list of reports this plugin supports.
-     *
-     * This will be used in the {DAV:}supported-report-set property.
-     * Note that you still need to subscribe to the 'report' event to actually 
-     * implement them 
-     * 
-     * @param string $uri
-     * @return array 
-     */
-    public function getSupportedReportSet($uri) {
-
-        return array(
-            '{DAV:}expand-property',
-            '{DAV:}principal-property-search',
-            '{DAV:}principal-search-property-set', 
-        );
-
-    }
-
-
-    /**
-     * Checks if the current user has the specified privilege(s). 
-     * 
-     * You can specify a single privilege, or a list of privileges.
-     * This method will throw an exception if the privilege is not available
-     * and return true otherwise.
-     *
-     * @param string $uri
-     * @param array|string $privileges
-     * @param bool $throwExceptions if set to false, this method won't through exceptions. 
-     * @throws Sabre_DAVACL_Exception_NeedPrivileges
-     * @return bool 
-     */
-    public function checkPrivileges($uri,$privileges,$recursion = self::R_PARENT, $throwExceptions = true) {
-
-        if (!is_array($privileges)) $privileges = array($privileges);
-
-        $acl = $this->getCurrentUserPrivilegeSet($uri);
-
-        if (is_null($acl)) {
-            if ($this->allowAccessToNodesWithoutACL) {
-                return true;
-            } else {
-                if ($throwExceptions) 
-                    throw new Sabre_DAVACL_Exception_NeedPrivileges($uri,$privileges);
-                else
-                    return false;
-
-            }
-        }
-
-        $failed = array();
-        foreach($privileges as $priv) {
-
-            if (!in_array($priv, $acl)) {
-                $failed[] = $priv;
-            }
-
-        }
-
-        if ($failed) {
-            if ($throwExceptions) 
-                throw new Sabre_DAVACL_Exception_NeedPrivileges($uri,$failed);
-            else
-                return false;
-        }
-        return true;
-
-    }
-
-    /**
-     * Returns the standard users' principal.
-     *
-     * This is one authorative principal url for the current user.
-     * This method will return null if the user wasn't logged in. 
-     * 
-     * @return string|null 
-     */
-    public function getCurrentUserPrincipal() {
-
-        $authPlugin = $this->server->getPlugin('auth');
-        if (is_null($authPlugin)) return null;
-
-        $userName = $authPlugin->getCurrentUser();
-        if (!$userName) return null;
-
-        return $this->defaultUsernamePath . '/' . $userName;
-
-    }
-
-    /**
-     * Returns a list of principals that's associated to the current
-     * user, either directly or through group membership. 
-     * 
-     * @return array 
-     */
-    public function getCurrentUserPrincipals() {
-
-        $currentUser = $this->getCurrentUserPrincipal();
-
-        if (is_null($currentUser)) return array();
-
-        $check = array($currentUser);
-        $principals = array($currentUser);
-
-        while(count($check)) {
-
-            $principal = array_shift($check);
- 
-            $node = $this->server->tree->getNodeForPath($principal);
-            if ($node instanceof Sabre_DAVACL_IPrincipal) {
-                foreach($node->getGroupMembership() as $groupMember) {
-
-                    if (!in_array($groupMember, $principals)) {
-
-                        $check[] = $groupMember;
-                        $principals[] = $groupMember;
-
-                    }
-
-                }
-
-            }
-
-        }
-
-        return $principals;
-
-    }
-
-    /**
-     * Returns the supported privilege structure for this ACL plugin.
-     *
-     * See RFC3744 for more details. Currently we default on a simple,
-     * standard structure. 
-     * 
-     * @return array 
-     */
-    public function getSupportedPrivilegeSet() {
-
-        return array(
-            'privilege'  => '{DAV:}all',
-            'abstract'   => true,
-            'aggregates' => array(
-                array(
-                    'privilege'  => '{DAV:}read',
-                    'aggregates' => array(
-                        array(
-                            'privilege' => '{DAV:}read-acl',
-                            'abstract'  => true,
-                        ),
-                        array(
-                            'privilege' => '{DAV:}read-current-user-privilege-set',
-                            'abstract'  => true,
-                        ),
-                    ),
-                ), // {DAV:}read
-                array(
-                    'privilege'  => '{DAV:}write',
-                    'aggregates' => array(
-                        array(
-                            'privilege' => '{DAV:}write-acl',
-                            'abstract'  => true,
-                        ),
-                        array(
-                            'privilege' => '{DAV:}write-properties',
-                            'abstract'  => true,
-                        ),
-                        array(
-                            'privilege' => '{DAV:}write-content',
-                            'abstract'  => true,
-                        ),
-                        array(
-                            'privilege' => '{DAV:}bind',
-                            'abstract'  => true,
-                        ),
-                        array(
-                            'privilege' => '{DAV:}unbind',
-                            'abstract'  => true,
-                        ),
-                        array(
-                            'privilege' => '{DAV:}unlock',
-                            'abstract'  => true,
-                        ),
-                    ),
-                ), // {DAV:}write
-            ), 
-        ); // {DAV:}all
-
-    }
-
-    /**
-     * Returns the supported privilege set as a flat list
-     *
-     * This is much easier to parse.
-     *
-     * The returned list will be index by privilege name.
-     * The value is a struct containing the following properties:
-     *   - aggregates
-     *   - abstract
-     *   - concrete
-     * 
-     * @return array 
-     */
-    final public function getFlatPrivilegeSet() {
-
-        $privs = $this->getSupportedPrivilegeSet();
-
-        $flat = array();
-        $this->getFPSTraverse($privs, null, $flat);
-
-        return $flat;
-
-    }
-
-    /**
-     * Traverses the privilege set tree for reordering
-     *
-     * This function is solely used by getFlatPrivilegeSet, and would have been 
-     * a closure if it wasn't for the fact I need to support PHP 5.2.
-     * 
-     * @return void
-     */
-    final private function getFPSTraverse($priv, $concrete, &$flat) {
-
-        $myPriv = array(
-            'privilege' => $priv['privilege'],
-            'abstract' => isset($priv['abstract']) && $priv['abstract'],
-            'aggregates' => array(),
-            'concrete' => isset($priv['abstract']) && $priv['abstract']?$concrete:$priv['privilege'],
-        );
-
-        if (isset($priv['aggregates']))
-            foreach($priv['aggregates'] as $subPriv) $myPriv['aggregates'][] = $subPriv['privilege'];
-
-        $flat[$priv['privilege']] = $myPriv;
-
-        if (isset($priv['aggregates'])) {
-
-            foreach($priv['aggregates'] as $subPriv) {
-            
-                $this->getFPSTraverse($subPriv, $myPriv['concrete'], $flat);
-
-            }
-
-        }
-
-    }
-
-    /**
-     * Returns the full ACL list.
-     *
-     * Either a uri or a Sabre_DAV_INode may be passed.
-     *
-     * null will be returned if the node doesn't support ACLs. 
-     * 
-     * @param string|Sabre_DAV_INode $node
-     * @return array
-     */
-    public function getACL($node) {
-
-        if (is_string($node)) {
-            $node = $this->server->tree->getNodeForPath($node);
-        }
-        if ($node instanceof Sabre_DAVACL_IACL) {
-            return $node->getACL();
-        }
-        return null; 
-
-    }
-
-    /**
-     * Returns a list of privileges the current user has
-     * on a particular node.
-     *
-     * Either a uri or a Sabre_DAV_INode may be passed.
-     *
-     * null will be returned if the node doesn't support ACLs. 
-     * 
-     * @param string|Sabre_DAV_INode $node 
-     * @return array 
-     */
-    public function getCurrentUserPrivilegeSet($node) {
-
-        if (is_string($node)) {
-            $node = $this->server->tree->getNodeForPath($node);
-        }
-
-        $acl = $this->getACL($node);
-        if (is_null($acl)) return null;
-
-        $principals = $this->getCurrentUserPrincipals();
-
-        $collected = array();
-
-        foreach($acl as $ace) {
-
-            if (in_array($ace['principal'], $principals)) {
-                $collected[] = $ace;
-            }
-
-        }
-
-        // Now we deduct all aggregated privileges.
-        $flat = $this->getFlatPrivilegeSet();
-
-        $collected2 = array();
-        foreach($collected as $privilege) {
-
-            $collected2[] = $privilege['privilege'];
-            foreach($flat[$privilege['privilege']]['aggregates'] as $subPriv) {
-                if (!in_array($subPriv, $collected2)) 
-                    $collected2[] = $subPriv;
-            }
-
-        }
-
-        return $collected2;
-
-    }
-
-    /**
-     * Sets up the plugin
-     *
-     * This method is automatically called by the server class.
-     * 
-     * @param Sabre_DAV_Server $server 
-     * @return void
-     */
-    public function initialize(Sabre_DAV_Server $server) {
-
-        $this->server = $server;
-        $server->subscribeEvent('beforeGetProperties',array($this,'beforeGetProperties'));
-
-        $server->subscribeEvent('beforeMethod', array($this,'beforeMethod'),20);
-        $server->subscribeEvent('beforeBind', array($this,'beforeBind'),20);
-        $server->subscribeEvent('beforeUnbind', array($this,'beforeUnbind'),20);
-        $server->subscribeEvent('updateProperties',array($this,'updateProperties'));
-        $server->subscribeEvent('beforeUnlock', array($this,'beforeUnlock'),20);
-        $server->subscribeEvent('report',array($this,'report'));
-        $server->subscribeEvent('unknownMethod', array($this, 'unknownMethod'));
-
-        array_push($server->protectedProperties,
-            '{DAV:}alternate-URI-set',
-            '{DAV:}principal-URL',
-            '{DAV:}group-membership',
-            '{DAV:}principal-collection-set',
-            '{DAV:}current-user-principal',
-            '{DAV:}supported-privilege-set',
-            '{DAV:}current-user-privilege-set',
-            '{DAV:}acl',
-            '{DAV:}acl-restrictions',
-            '{DAV:}inherited-acl-set',
-            '{DAV:}owner',
-            '{DAV:}group'
-        );
-
-        // Automatically mapping nodes implementing IPrincipal to the 
-        // {DAV:}principal resourcetype.
-        $server->resourceTypeMapping['Sabre_DAVACL_IPrincipal'] = '{DAV:}principal';
-
-        // Mapping the group-member-set property to the HrefList property 
-        // class.
-        $server->propertyMap['{DAV:}group-member-set'] = 'Sabre_DAV_Property_HrefList';
-
-    }
-
-
-    /* {{{ Event handlers */
-
-    /**
-     * Triggered before any method is handled 
-     * 
-     * @param string $method 
-     * @param string $uri 
-     * @return void
-     */
-    public function beforeMethod($method, $uri) {
-
-        $exists = $this->server->tree->nodeExists($uri);
-
-        // If the node doesn't exists, none of these checks apply
-        if (!$exists) return;
-
-        switch($method) {
-
-            case 'GET' :
-            case 'HEAD' :
-            case 'OPTIONS' :
-                // For these 3 we only need to know if the node is readable.
-                $this->checkPrivileges($uri,'{DAV:}read');
-                break;
-
-            case 'PUT' :
-            case 'LOCK' :
-            case 'UNLOCK' : 
-                // This method requires the write-content priv if the node 
-                // already exists, and bind on the parent if the node is being 
-                // created. 
-                // The bind privilege is handled in the beforeBind event. 
-                $this->checkPrivileges($uri,'{DAV:}write-content');
-                break;
-            
-
-            case 'PROPPATCH' :
-                $this->checkPrivileges($uri,'{DAV:}write-properties');
-                break;
-
-            case 'ACL' :
-                $this->checkPrivileges($uri,'{DAV:}write-acl');
-                break;
-
-            case 'COPY' :
-            case 'MOVE' :
-                // Copy requires read privileges on the entire source tree.
-                // If the target exists write-content normally needs to be 
-                // checked, however, we're deleting the node beforehand and 
-                // creating a new one after, so this is handled by the 
-                // beforeUnbind event.
-                // 
-                // The creation of the new node is handled by the beforeBind 
-                // event.
-                //
-                // If MOVE is used beforeUnbind will also be used to check if 
-                // the sourcenode can be deleted. 
-                $this->checkPrivileges($uri,'{DAV:}read',self::R_RECURSIVE);
-
-                break;
-
-        }
-
-    }
-
-    /**
-     * Triggered before a new node is created.
-     * 
-     * This allows us to check permissions for any operation that creates a
-     * new node, such as PUT, MKCOL, MKCALENDAR, LOCK, COPY and MOVE.
-     * 
-     * @param string $uri 
-     * @return void
-     */
-    public function beforeBind($uri) {
-
-        list($parentUri,$nodeName) = Sabre_DAV_URLUtil::splitPath($uri);
-        $this->checkPrivileges($parentUri,'{DAV:}bind');
-
-    }
-
-    /**
-     * Triggered before a node is deleted 
-     * 
-     * This allows us to check permissions for any operation that will delete 
-     * an existing node. 
-     * 
-     * @param string $uri 
-     * @return void
-     */
-    public function beforeUnbind($uri) {
-
-        list($parentUri,$nodeName) = Sabre_DAV_URLUtil::splitPath($uri);
-        $this->checkPrivileges($parentUri,'{DAV:}unbind',self::R_RECURSIVEPARENTS);
-
-    }
-
-    /**
-     * Triggered before a node is unlocked. 
-     * 
-     * @param string $uri 
-     * @param Sabre_DAV_Locks_LockInfo $lock
-     * @TODO: not yet implemented 
-     * @return void
-     */
-    public function beforeUnlock($uri, Sabre_DAV_Locks_LockInfo $lock) {
-           
-
-    }
-
-    /**
-     * Triggered before properties are looked up in specific nodes. 
-     * 
-     * @param string $uri 
-     * @param Sabre_DAV_INode $node 
-     * @param array $requestedProperties 
-     * @param array $returnedProperties
-     * @TODO really should be broken into multiple methods, or even a class. 
-     * @return void
-     */
-    public function beforeGetProperties($uri, Sabre_DAV_INode $node, &$requestedProperties, &$returnedProperties) {
-
-        // Checking the read permission
-        if (!$this->checkPrivileges($uri,'{DAV:}read',self::R_PARENT,false)) {
-
-            // User is not allowed to read properties
-            if ($this->hideNodesFromListings) {
-                return false;
-            }
-
-            // Marking all requested properties as '403'.
-            foreach($requestedProperties as $key=>$requestedProperty) {
-                unset($requestedProperties[$key]);
-                $returnedProperties[403][$requestedProperty] = null;
-            }
-            return;
-
-        } 
-
-        /* Adding principal properties */
-        if ($node instanceof Sabre_DAVACL_IPrincipal) {
-
-            if (false !== ($index = array_search('{DAV:}alternate-URI-set', $requestedProperties))) {
-
-                unset($requestedProperties[$index]);
-                $returnedProperties[200]['{DAV:}alternate-URI-set'] = new Sabre_DAV_Property_HrefList($node->getAlternateUriSet());
-
-            }
-            if (false !== ($index = array_search('{DAV:}principal-URL', $requestedProperties))) {
-
-                unset($requestedProperties[$index]);
-                $returnedProperties[200]['{DAV:}principal-URL'] = new Sabre_DAV_Property_Href($node->getPrincipalUrl() . '/');
-
-            }
-            if (false !== ($index = array_search('{DAV:}group-member-set', $requestedProperties))) {
-
-                unset($requestedProperties[$index]);
-                $returnedProperties[200]['{DAV:}group-member-set'] = new Sabre_DAV_Property_HrefList($node->getGroupMemberSet());
-
-            }
-            if (false !== ($index = array_search('{DAV:}group-membership', $requestedProperties))) {
-
-                unset($requestedProperties[$index]);
-                $returnedProperties[200]['{DAV:}group-membership'] = new Sabre_DAV_Property_HrefList($node->getGroupMembership());
-
-            }
-
-            if (false !== ($index = array_search('{DAV:}displayname', $requestedProperties))) {
-
-                $returnedProperties[200]['{DAV:}displayname'] = $node->getDisplayName();
-
-            }
-
-        }
-        if (false !== ($index = array_search('{DAV:}principal-collection-set', $requestedProperties))) {
-
-            unset($requestedProperties[$index]);
-            $val = $this->principalCollectionSet;
-            // Ensuring all collections end with a slash
-            foreach($val as $k=>$v) $val[$k] = $v . '/';
-            $returnedProperties[200]['{DAV:}principal-collection-set'] = new Sabre_DAV_Property_HrefList($val);
-
-        }
-        if (false !== ($index = array_search('{DAV:}current-user-principal', $requestedProperties))) {
-
-            unset($requestedProperties[$index]);
-            if ($url = $this->getCurrentUserPrincipal()) {
-                $returnedProperties[200]['{DAV:}current-user-principal'] = new Sabre_DAVACL_Property_Principal(Sabre_DAVACL_Property_Principal::HREF, $url . '/');
-            } else {
-                $returnedProperties[200]['{DAV:}current-user-principal'] = new Sabre_DAVACL_Property_Principal(Sabre_DAVACL_Property_Principal::UNAUTHENTICATED);
-            }
-
-        }
-        if (false !== ($index = array_search('{DAV:}supported-privilege-set', $requestedProperties))) {
-
-            unset($requestedProperties[$index]);
-            $returnedProperties[200]['{DAV:}supported-privilege-set'] = new Sabre_DAVACL_Property_SupportedPrivilegeSet($this->getSupportedPrivilegeSet());
-
-        }
-        if (false !== ($index = array_search('{DAV:}current-user-privilege-set', $requestedProperties))) {
-
-            if (!$this->checkPrivileges($uri, '{DAV:}read-current-user-privilege-set', self::R_PARENT, false)) {
-                $returnedProperties[403]['{DAV:}current-user-privilege-set'] = null;
-                unset($requestedProperties[$index]);
-            } else {
-                $val = $this->getCurrentUserPrivilegeSet($node);
-                if (!is_null($val)) {
-                    unset($requestedProperties[$index]);
-                    $returnedProperties[200]['{DAV:}current-user-privilege-set'] = new Sabre_DAVACL_Property_CurrentUserPrivilegeSet($val);
-                }
-            }
-
-        }
-
-        /* The ACL property contains all the permissions */
-        if (false !== ($index = array_search('{DAV:}acl', $requestedProperties))) {
-
-            if (!$this->checkPrivileges($uri, '{DAV:}read-acl', self::R_PARENT, false)) {
-
-                unset($requestedProperties[$index]);
-                $returnedProperties[403]['{DAV:}acl'] = null;
-
-            } else {
-
-                $acl = $this->getACL($node);
-                if (!is_null($acl)) {
-                    unset($requestedProperties[$index]);
-                    $returnedProperties[200]['{DAV:}acl'] = new Sabre_DAVACL_Property_Acl($this->getACL($node));
-                }
-
-            }
-
-        }
-
-    }
-
-    /**
-     * This method intercepts PROPPATCH methods and make sure the 
-     * group-member-set is updated correctly. 
-     * 
-     * @param array $propertyDelta 
-     * @param array $result 
-     * @param Sabre_DAV_INode $node 
-     * @return void
-     */
-    public function updateProperties(&$propertyDelta, &$result, Sabre_DAV_INode $node) {
-
-        if (!array_key_exists('{DAV:}group-member-set', $propertyDelta))
-            return;
-
-        if (is_null($propertyDelta['{DAV:}group-member-set'])) {
-            $memberSet = array();
-        } elseif ($propertyDelta['{DAV:}group-member-set'] instanceof Sabre_DAV_Property_HrefList) {
-            $memberSet = $propertyDelta['{DAV:}group-member-set']->getHrefs();
-        } else {
-            throw new Sabre_DAV_Exception('The group-member-set property MUST be an instance of Sabre_DAV_Property_HrefList or null');
-        }
-
-        if (!($node instanceof Sabre_DAVACL_IPrincipal)) {
-            $result[403]['{DAV:}group-member-set'] = null;
-            unset($propertyDelta['{DAV:}group-member-set']);
-
-            // Returning false will stop the updateProperties process
-            return false;
-        }
-
-        $node->setGroupMemberSet($memberSet);
-        
-        $result[200]['{DAV:}group-member-set'] = null;
-        unset($propertyDelta['{DAV:}group-member-set']);
-
-    }
-
-    /**
-     * This method handels HTTP REPORT requests 
-     * 
-     * @param string $reportName 
-     * @param DOMNode $dom 
-     * @return void
-     */
-    public function report($reportName, $dom) {
-
-        switch($reportName) {
-
-            case '{DAV:}principal-property-search' :
-                $this->principalPropertySearchReport($dom);
-                return false;
-            case '{DAV:}principal-search-property-set' :
-                $this->principalSearchPropertySetReport($dom);
-                return false; 
-            case '{DAV:}expand-property' :
-                $this->expandPropertyReport($dom);
-                return false;
-
-        }
-
-    }
-
-    /**
-     * This event is triggered for any HTTP method that is not known by the 
-     * webserver. 
-     *
-     * @param string $method 
-     * @param string $uri 
-     * @return void
-     */
-    public function unknownMethod($method, $uri) {
-
-        if ($method!=='ACL') return;
-
-        $this->httpACL($uri);
-        return false;
-
-    }
-
-    /**
-     * This method is responsible for handling the 'ACL' event.
-     *
-     * @param string $uri
-     * @return void
-     */
-    public function httpACL($uri) { 
-
-        $body = $this->server->httpRequest->getBody(true);
-        $dom = Sabre_DAV_XMLUtil::loadDOMDocument($body);
-
-        $newAcl = 
-            Sabre_DAVACL_Property_Acl::unserialize($dom->firstChild)
-            ->getPrivileges();
-
-        // Normalizing urls
-        foreach($newAcl as $k=>$newAce) {
-            $newAcl[$k]['principal'] = $this->server->calculateUri($newAce['principal']);
-        }
-
-        $node = $this->server->tree->getNodeForPath($uri);
-
-        if (!($node instanceof Sabre_DAVACL_IACL)) {
-            throw new Sabre_DAV_Exception_MethodNotAllowed('This node does not support the ACL method');
-        }
-
-        $oldAcl = $this->getACL($node);
-
-        $supportedPrivileges = $this->getFlatPrivilegeSet(); 
-
-        /* Checking if protected principals from the existing principal set are 
-           not overwritten. */
-        foreach($oldAcl as $k=>$oldAce) {
-
-            if (!isset($oldAce['protected']) || !$oldAce['protected']) continue; 
-
-            $found = false;
-            foreach($newAcl as $newAce) {
-                if (
-                    $newAce['privilege'] === $oldAce['privilege'] &&
-                    $newAce['principal'] === $oldAce['principal'] &&
-                    $newAce['protected']
-                ) 
-                $found = true;
-            }
-
-            if (!$found) 
-                throw new Sabre_DAVACL_Exception_AceConflict('This resource contained a protected {DAV:}ace, but this privilege did not occur in the ACL request');
-
-        }
-
-        foreach($newAcl as $k=>$newAce) {
-
-            // Do we recognize the privilege
-            if (!isset($supportedPrivileges[$newAce['privilege']])) {
-                throw new Sabre_DAVACL_Exception_NotSupportedPrivilege('The privilege you specified (' . $newAce['privilege'] . ') is not recognized by this server');
-            }
-
-            if ($supportedPrivileges[$newAce['privilege']]['abstract']) {
-                throw new Sabre_DAVACL_Exception_NoAbstract('The privilege you specified (' . $newAce['privilege'] . ') is an abstract privilege');
-            }
-
-            // Looking up the principal
-            try {
-                $principal = $this->server->tree->getNodeForPath($newAce['principal']);
-            } catch (Sabre_DAV_Exception_FileNotFound $e) {
-                throw new Sabre_DAVACL_Exception_NotRecognizedPrincipal('The specified principal (' . $newAce['principal'] . ') does not exist');
-            }
-            if (!($principal instanceof Sabre_DAVACL_IPrincipal)) {
-                throw new Sabre_DAVACL_Exception_NotRecognizedPrincipal('The specified uri (' . $newAce['principal'] . ') is not a principal');
-            } 
-
-        }
-        $node->setACL($newAcl);
-
-    }
-
-    /* }}} */
-
-    /* Reports {{{ */
-
-    /**
-     * The expand-property report is defined in RFC3253 section 3-8. 
-     *
-     * This report is very similar to a standard PROPFIND. The difference is
-     * that it has the additional ability to look at properties containing a
-     * {DAV:}href element, follow that property and grab additional elements
-     * there.
-     *
-     * Other rfc's, such as ACL rely on this report, so it made sense to put
-     * it in this plugin.
-     *
-     * @param DOMElement $dom 
-     * @return void
-     */
-    protected function expandPropertyReport($dom) {
-
-        $requestedProperties = $this->parseExpandPropertyReportRequest($dom->firstChild->firstChild);
-        $depth = $this->server->getHTTPDepth(0);
-        $requestUri = $this->server->getRequestUri();
-
-        $result = $this->expandProperties($requestUri,$requestedProperties,$depth);
-
-        $dom = new DOMDocument('1.0','utf-8');
-        $dom->formatOutput = true;
-        $multiStatus = $dom->createElement('d:multistatus');
-        $dom->appendChild($multiStatus);
-
-        // Adding in default namespaces
-        foreach($this->server->xmlNamespaces as $namespace=>$prefix) {
-
-            $multiStatus->setAttribute('xmlns:' . $prefix,$namespace);
-
-        }
-
-        foreach($result as $response) {
-            $response->serialize($this->server, $multiStatus);
-        }
-
-        $xml = $dom->saveXML();
-        $this->server->httpResponse->setHeader('Content-Type','application/xml; charset=utf-8');
-        $this->server->httpResponse->sendStatus(207);
-        $this->server->httpResponse->sendBody($xml);
-
-    }
-
-    /**
-     * This method is used by expandPropertyReport to parse
-     * out the entire HTTP request.
-     * 
-     * @param DOMElement $node 
-     * @return array 
-     */
-    protected function parseExpandPropertyReportRequest($node) {
-
-        $requestedProperties = array();
-        do {
-
-            if (Sabre_DAV_XMLUtil::toClarkNotation($node)!=='{DAV:}property') continue;
-                
-            if ($node->firstChild) {
-                
-                $children = $this->parseExpandPropertyReportRequest($node->firstChild);
-
-            } else {
-
-                $children = array();
-
-            }
-
-            $namespace = $node->getAttribute('namespace');
-            if (!$namespace) $namespace = 'DAV:';
-
-            $propName = '{'.$namespace.'}' . $node->getAttribute('name');
-            $requestedProperties[$propName] = $children; 
-
-        } while ($node = $node->nextSibling);
-
-        return $requestedProperties;
-
-    }
-
-    /**
-     * This method expands all the properties and returns
-     * a list with property values
-     *
-     * @param array $path
-     * @param array $requestedProperties the list of required properties
-     * @param array $depth
-     */
-    protected function expandProperties($path,array $requestedProperties,$depth) { 
-
-        $foundProperties = $this->server->getPropertiesForPath($path,array_keys($requestedProperties),$depth);
-
-        $result = array();
-
-        foreach($foundProperties as $node) {
-
-            foreach($requestedProperties as $propertyName=>$childRequestedProperties) {
-
-                // We're only traversing if sub-properties were requested
-                if(count($childRequestedProperties)===0) continue;
-                
-                // We only have to do the expansion if the property was found
-                // and it contains an href element.
-                if (!array_key_exists($propertyName,$node[200])) continue;
-
-                if ($node[200][$propertyName] instanceof Sabre_DAV_Property_IHref) {
-                    $hrefs = array($node[200][$propertyName]->getHref());
-                } elseif ($node[200][$propertyName] instanceof Sabre_DAV_Property_HrefList) {
-                    $hrefs = $node[200][$propertyName]->getHrefs();
-                }
-
-                $childProps = array();
-                foreach($hrefs as $href) {
-                    $childProps = array_merge($childProps, $this->expandProperties($href,$childRequestedProperties,0));
-                }
-                $node[200][$propertyName] = new Sabre_DAV_Property_ResponseList($childProps);
-
-            }
-            $result[] = new Sabre_DAV_Property_Response($path, $node);
-
-        }
-
-        return $result;
-
-    }
-
-    /**
-     * principalSearchPropertySetReport
-     *
-     * This method responsible for handing the 
-     * {DAV:}principal-search-property-set report. This report returns a list
-     * of properties the client may search on, using the
-     * {DAV:}principal-property-search report.
-     * 
-     * @param DOMDocument $dom 
-     * @return void
-     */
-    protected function principalSearchPropertySetReport(DOMDocument $dom) {
-
-        $searchProperties = array(
-            '{DAV:}displayname' => 'display name'
-        );
-
-        $httpDepth = $this->server->getHTTPDepth(0);
-        if ($httpDepth!==0) {
-            throw new Sabre_DAV_Exception_BadRequest('This report is only defined when Depth: 0');
-        }
-        
-        if ($dom->firstChild->hasChildNodes()) 
-            throw new Sabre_DAV_Exception_BadRequest('The principal-search-property-set report element is not allowed to have child elements'); 
-
-        $dom = new DOMDocument('1.0','utf-8');
-        $dom->formatOutput = true;
-        $root = $dom->createElement('d:principal-search-property-set');
-        $dom->appendChild($root);
-        // Adding in default namespaces
-        foreach($this->server->xmlNamespaces as $namespace=>$prefix) {
-
-            $root->setAttribute('xmlns:' . $prefix,$namespace);
-
-        }
-
-        $nsList = $this->server->xmlNamespaces; 
-
-        foreach($searchProperties as $propertyName=>$description) {
-
-            $psp = $dom->createElement('d:principal-search-property');
-            $root->appendChild($psp);
-
-            $prop = $dom->createElement('d:prop');
-            $psp->appendChild($prop);
-  
-            $propName = null;
-            preg_match('/^{([^}]*)}(.*)$/',$propertyName,$propName);
-
-            $currentProperty = $dom->createElement($nsList[$propName[1]] . ':' . $propName[2]);
-            $prop->appendChild($currentProperty);
-
-            $descriptionElem = $dom->createElement('d:description');
-            $descriptionElem->setAttribute('xml:lang','en');
-            $descriptionElem->appendChild($dom->createTextNode($description));
-            $psp->appendChild($descriptionElem);
-
-
-        }
-
-        $this->server->httpResponse->setHeader('Content-Type','application/xml; charset=utf-8');
-        $this->server->httpResponse->sendStatus(200);
-        $this->server->httpResponse->sendBody($dom->saveXML());
-
-    }
-
-    /**
-     * principalPropertySearchReport
-     *
-     * This method is reponsible for handing the 
-     * {DAV:}principal-property-search report. This report can be used for 
-     * clients to search for groups of principals, based on the value of one
-     * or more properties.
-     * 
-     * @param DOMDocument $dom 
-     * @return void
-     */
-    protected function principalPropertySearchReport(DOMDocument $dom) {
-
-        $searchableProperties = array(
-            '{DAV:}displayname' => 'display name'
-
-        );
-
-        list($searchProperties, $requestedProperties, $applyToPrincipalCollectionSet) = $this->parsePrincipalPropertySearchReportRequest($dom);
-
-        $result = array();
-
-        if ($applyToPrincipalCollectionSet) {
-            $uris = array();
-        } else {
-            $uris = array($this->server->getRequestUri());
-        }
-
-        $lookupResults = array();
-        foreach($uris as $uri) {
-
-            $p = array_keys($searchProperties);
-            $p[] = '{DAV:}resourcetype';
-            $r = $this->server->getPropertiesForPath($uri, $p, 1);
-
-            // The first item in the results is the parent, so we get rid of it.
-            array_shift($r);
-            $lookupResults = array_merge($lookupResults, $r);
-        } 
-
-        $matches = array();
-
-        foreach($lookupResults as $lookupResult) {
-
-            // We're only looking for principals 
-            if (!isset($lookupResult[200]['{DAV:}resourcetype']) || 
-                (!($lookupResult[200]['{DAV:}resourcetype'] instanceof Sabre_DAV_Property_ResourceType)) ||
-                !$lookupResult[200]['{DAV:}resourcetype']->is('{DAV:}principal')) continue;
-
-            foreach($searchProperties as $searchProperty=>$searchValue) {
-                if (!isset($searchableProperties[$searchProperty])) {
-                    // If a property is not 'searchable', the spec dictates 
-                    // this is not a match. 
-                    continue;
-                }
-
-                if (isset($lookupResult[200][$searchProperty]) &&
-                    mb_stripos($lookupResult[200][$searchProperty], $searchValue, 0, 'UTF-8')!==false) {
-                        $matches[] = $lookupResult['href'];
-                }
-
-            }
-
-        }
-
-        $matchProperties = array();
-
-        foreach($matches as $match) {
-            
-           list($result) = $this->server->getPropertiesForPath($match, $requestedProperties, 0);
-           $matchProperties[] = $result;
-
-        }
-
-        $xml = $this->server->generateMultiStatus($matchProperties);
-        $this->server->httpResponse->setHeader('Content-Type','application/xml; charset=utf-8');
-        $this->server->httpResponse->sendStatus(207);
-        $this->server->httpResponse->sendBody($xml);
-
-    }
-
-    /**
-     * parsePrincipalPropertySearchReportRequest
-     *
-     * This method parses the request body from a
-     * {DAV:}principal-property-search report.
-     *
-     * This method returns an array with two elements:
-     *  1. an array with properties to search on, and their values
-     *  2. a list of propertyvalues that should be returned for the request.
-     * 
-     * @param DOMDocument $dom 
-     * @return array 
-     */
-    protected function parsePrincipalPropertySearchReportRequest($dom) {
-
-        $httpDepth = $this->server->getHTTPDepth(0);
-        if ($httpDepth!==0) {
-            throw new Sabre_DAV_Exception_BadRequest('This report is only defined when Depth: 0');
-        }
-
-        $searchProperties = array();
-
-        $applyToPrincipalCollectionSet = false;
-
-        // Parsing the search request
-        foreach($dom->firstChild->childNodes as $searchNode) {
-
-            if (Sabre_DAV_XMLUtil::toClarkNotation($searchNode) == '{DAV:}apply-to-principal-collection-set')
-                $applyToPrincipalCollectionSet = true;
-
-            if (Sabre_DAV_XMLUtil::toClarkNotation($searchNode)!=='{DAV:}property-search')
-                continue;
-
-            $propertyName = null;
-            $propertyValue = null;
-
-            foreach($searchNode->childNodes as $childNode) {
-
-                switch(Sabre_DAV_XMLUtil::toClarkNotation($childNode)) {
-
-                    case '{DAV:}prop' :
-                        $property = Sabre_DAV_XMLUtil::parseProperties($searchNode);
-                        reset($property); 
-                        $propertyName = key($property);
-                        break;
-
-                    case '{DAV:}match' :
-                        $propertyValue = $childNode->textContent;
-                        break;
-
-                }
-
-
-            }
-
-            if (is_null($propertyName) || is_null($propertyValue))
-                throw new Sabre_DAV_Exception_BadRequest('Invalid search request. propertyname: ' . $propertyName . '. propertvvalue: ' . $propertyValue);
-
-            $searchProperties[$propertyName] = $propertyValue;
-
-        }
-
-        return array($searchProperties, array_keys(Sabre_DAV_XMLUtil::parseProperties($dom->firstChild)), $applyToPrincipalCollectionSet);
-
-    }
-
-
-    /* }}} */
-
-}
diff --git a/3rdparty/Sabre/DAVACL/Principal.php b/3rdparty/Sabre/DAVACL/Principal.php
deleted file mode 100644
index 790603c900f..00000000000
--- a/3rdparty/Sabre/DAVACL/Principal.php
+++ /dev/null
@@ -1,263 +0,0 @@
-<?php
-
-/**
- * Principal class
- *
- * This class is a representation of a simple principal
- * 
- * Many WebDAV specs require a user to show up in the directory 
- * structure. 
- *
- * This principal also has basic ACL settings, only allowing the principal
- * access it's own principal. 
- * 
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_DAVACL_Principal extends Sabre_DAV_Node implements Sabre_DAVACL_IPrincipal, Sabre_DAV_IProperties, Sabre_DAVACL_IACL {
-
-    /**
-     * Struct with principal information.
-     *
-     * @var array 
-     */
-    protected $principalProperties;
-
-    /**
-     * Principal backend 
-     * 
-     * @var Sabre_DAVACL_IPrincipalBackend 
-     */
-    protected $principalBackend;
-
-    /**
-     * Creates the principal object 
-     *
-     * @param array $principalProperties
-     */
-    public function __construct(Sabre_DAVACL_IPrincipalBackend $principalBackend, array $principalProperties = array()) {
-
-        if (!isset($principalProperties['uri'])) {
-            throw new Sabre_DAV_Exception('The principal properties must at least contain the \'uri\' key');
-        }
-        $this->principalBackend = $principalBackend;
-        $this->principalProperties = $principalProperties;
-
-    }
-
-    /**
-     * Returns the full principal url 
-     * 
-     * @return string 
-     */
-    public function getPrincipalUrl() {
-
-        return $this->principalProperties['uri'];
-
-    } 
-
-    /**
-     * Returns a list of altenative urls for a principal
-     * 
-     * This can for example be an email address, or ldap url.
-     * 
-     * @return array 
-     */
-    public function getAlternateUriSet() {
-
-        $uris = array();
-        if (isset($this->principalProperties['{DAV:}alternate-URI-set'])) {
-
-            $uris = $this->principalProperties['{DAV:}alternate-URI-set'];
-
-        }
-
-        if (isset($this->principalProperties['{http://sabredav.org/ns}email-address'])) {
-            $uris[] = 'mailto:' . $this->principalProperties['{http://sabredav.org/ns}email-address'];
-        }
-
-        return array_unique($uris); 
-
-    }
-
-    /**
-     * Returns the list of group members
-     * 
-     * If this principal is a group, this function should return
-     * all member principal uri's for the group. 
-     * 
-     * @return array
-     */
-    public function getGroupMemberSet() {
-
-        return $this->principalBackend->getGroupMemberSet($this->principalProperties['uri']);
-
-    }
-
-    /**
-     * Returns the list of groups this principal is member of
-     * 
-     * If this principal is a member of a (list of) groups, this function
-     * should return a list of principal uri's for it's members. 
-     * 
-     * @return array 
-     */
-    public function getGroupMembership() {
-
-        return $this->principalBackend->getGroupMemberShip($this->principalProperties['uri']);
-
-    }
-
-
-    /**
-     * Sets a list of group members
-     *
-     * If this principal is a group, this method sets all the group members.
-     * The list of members is always overwritten, never appended to.
-     * 
-     * This method should throw an exception if the members could not be set. 
-     * 
-     * @param array $principals 
-     * @return void 
-     */
-    public function setGroupMemberSet(array $groupMembers) {
-
-        $this->principalBackend->setGroupMemberSet($this->principalProperties['uri'], $groupMembers);
-
-    }
-
-
-    /**
-     * Returns this principals name.
-     * 
-     * @return string 
-     */
-    public function getName() {
-
-        $uri = $this->principalProperties['uri'];
-        list(, $name) = Sabre_DAV_URLUtil::splitPath($uri);
-
-        return $name;
-
-    }
-
-    /**
-     * Returns the name of the user 
-     * 
-     * @return void
-     */
-    public function getDisplayName() {
-
-        if (isset($this->principalProperties['{DAV:}displayname'])) {
-            return $this->principalProperties['{DAV:}displayname'];
-        } else {
-            return $this->getName();
-        }
-
-    }
-
-    /**
-     * Returns a list of properties 
-     * 
-     * @param array $requestedProperties 
-     * @return void
-     */
-    public function getProperties($requestedProperties) {
-
-        $newProperties = array();
-        foreach($requestedProperties as $propName) {
-            
-            if (isset($this->principalProperties[$propName])) {
-                $newProperties[$propName] = $this->principalProperties[$propName];
-            }
-
-        }
-
-        return $newProperties;
-        
-    }
-
-    /**
-     * Updates this principals properties.
-     *
-     * Currently this is not supported
-     * 
-     * @param array $properties
-     * @see Sabre_DAV_IProperties::updateProperties
-     * @return bool|array 
-     */
-    public function updateProperties($properties) {
-
-        return false;
-
-    }
-
-    /**
-     * Returns the owner principal
-     *
-     * This must be a url to a principal, or null if there's no owner 
-     * 
-     * @return string|null
-     */
-    public function getOwner() {
-
-        return $this->principalProperties['uri'];
-
-
-    }
-
-    /**
-     * Returns a group principal
-     *
-     * This must be a url to a principal, or null if there's no owner
-     * 
-     * @return string|null 
-     */
-    public function getGroup() {
-
-        return null;
-
-    }
-
-    /**
-     * Returns a list of ACE's for this node.
-     *
-     * Each ACE has the following properties:
-     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are 
-     *     currently the only supported privileges
-     *   * 'principal', a url to the principal who owns the node
-     *   * 'protected' (optional), indicating that this ACE is not allowed to 
-     *      be updated. 
-     * 
-     * @return array 
-     */
-    public function getACL() {
-
-        return array(
-            array(
-                'privilege' => '{DAV:}read',
-                'principal' => $this->principalProperties['uri'],
-                'protected' => true,
-            ),
-        );
-
-    }
-
-    /**
-     * Updates the ACL
-     *
-     * This method will receive a list of new ACE's. 
-     * 
-     * @param array $acl 
-     * @return void
-     */
-    public function setACL(array $acl) {
-
-        throw new Sabre_DAV_Exception_MethodNotAllowed('Updating ACLs is not allowed here');
-
-    }
-
-}
diff --git a/3rdparty/Sabre/DAVACL/PrincipalBackend/PDO.php b/3rdparty/Sabre/DAVACL/PrincipalBackend/PDO.php
deleted file mode 100644
index 55bd1903c9b..00000000000
--- a/3rdparty/Sabre/DAVACL/PrincipalBackend/PDO.php
+++ /dev/null
@@ -1,206 +0,0 @@
-<?php
-
-/**
- * PDO principal backend
- *
- * This is a simple principal backend that maps exactly to the users table, as 
- * used by Sabre_DAV_Auth_Backend_PDO.
- *
- * It assumes all principals are in a single collection. The default collection 
- * is 'principals/', but this can be overriden.
- *
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_DAVACL_PrincipalBackend_PDO implements Sabre_DAVACL_IPrincipalBackend {
-
-    /**
-     * pdo 
-     * 
-     * @var PDO 
-     */
-    protected $pdo;
-
-    /**
-     * PDO table name for 'principals' 
-     * 
-     * @var string 
-     */
-    protected $tableName;
-
-    /**
-     * PDO table name for 'group members' 
-     * 
-     * @var string 
-     */
-    protected $groupMembersTableName;
-
-    /**
-     * Sets up the backend.
-     * 
-     * @param PDO $pdo
-     * @param string $tableName 
-     */
-    public function __construct(PDO $pdo, $tableName = 'principals', $groupMembersTableName = 'groupmembers') {
-
-        $this->pdo = $pdo;
-        $this->tableName = $tableName;
-        $this->groupMembersTableName = $groupMembersTableName;
-
-    } 
-
-
-    /**
-     * Returns a list of principals based on a prefix.
-     *
-     * This prefix will often contain something like 'principals'. You are only 
-     * expected to return principals that are in this base path.
-     *
-     * You are expected to return at least a 'uri' for every user, you can 
-     * return any additional properties if you wish so. Common properties are:
-     *   {DAV:}displayname 
-     *   {http://sabredav.org/ns}email-address - This is a custom SabreDAV 
-     *     field that's actualy injected in a number of other properties. If
-     *     you have an email address, use this property.
-     * 
-     * @param string $prefixPath 
-     * @return array 
-     */
-    public function getPrincipalsByPrefix($prefixPath) {
-        $result = $this->pdo->query('SELECT uri, email, displayname FROM `'. $this->tableName . '`');
-
-        $principals = array();
-
-        while($row = $result->fetch(PDO::FETCH_ASSOC)) {
-
-            // Checking if the principal is in the prefix
-            list($rowPrefix) = Sabre_DAV_URLUtil::splitPath($row['uri']);
-            if ($rowPrefix !== $prefixPath) continue;
-
-            $principals[] = array(
-                'uri' => $row['uri'],
-                '{DAV:}displayname' => $row['displayname']?$row['displayname']:basename($row['uri']),
-                '{http://sabredav.org/ns}email-address' => $row['email'],
-            );
-
-        }
-
-        return $principals;
-
-    }
-
-    /**
-     * Returns a specific principal, specified by it's path.
-     * The returned structure should be the exact same as from 
-     * getPrincipalsByPrefix. 
-     * 
-     * @param string $path 
-     * @return array 
-     */
-    public function getPrincipalByPath($path) {
-
-        $stmt = $this->pdo->prepare('SELECT id, uri, email, displayname FROM `'.$this->tableName.'` WHERE uri = ?');
-        $stmt->execute(array($path));
-
-        $users = array();
-
-        $row = $stmt->fetch(PDO::FETCH_ASSOC);
-        if (!$row) return;
-
-        return array(
-            'id'  => $row['id'],
-            'uri' => $row['uri'],
-            '{DAV:}displayname' => $row['displayname']?$row['displayname']:basename($row['uri']),
-            '{http://sabredav.org/ns}email-address' => $row['email'],
-        );
-
-    }
-
-    /**
-     * Returns the list of members for a group-principal 
-     * 
-     * @param string $principal 
-     * @return array 
-     */
-    public function getGroupMemberSet($principal) {
-
-        $principal = $this->getPrincipalByPath($principal);
-        if (!$principal) throw new Sabre_DAV_Exception('Principal not found');
-
-        $stmt = $this->pdo->prepare('SELECT principals.uri as uri FROM `'.$this->groupMembersTableName.'` AS groupmembers LEFT JOIN `'.$this->tableName.'` AS principals ON groupmembers.member_id = principals.id WHERE groupmembers.principal_id = ?');
-        $stmt->execute(array($principal['id']));
-
-        $result = array();
-        while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
-            $result[] = $row['uri'];
-        }
-        return $result;
-    
-    }
-
-    /**
-     * Returns the list of groups a principal is a member of 
-     * 
-     * @param string $principal 
-     * @return array 
-     */
-    public function getGroupMembership($principal) {
-
-        $principal = $this->getPrincipalByPath($principal);
-        if (!$principal) throw new Sabre_DAV_Exception('Principal not found');
-
-        $stmt = $this->pdo->prepare('SELECT principals.uri as uri FROM `'.$this->groupMembersTableName.'` AS groupmembers LEFT JOIN `'.$this->tableName.'` AS principals ON groupmembers.principal_id = principals.id WHERE groupmembers.member_id = ?');
-        $stmt->execute(array($principal['id']));
-
-        $result = array();
-        while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
-            $result[] = $row['uri'];
-        }
-        return $result;
-
-    }
-
-    /**
-     * Updates the list of group members for a group principal.
-     *
-     * The principals should be passed as a list of uri's. 
-     * 
-     * @param string $principal 
-     * @param array $members 
-     * @return void
-     */
-    public function setGroupMemberSet($principal, array $members) {
-
-        // Grabbing the list of principal id's.
-        $stmt = $this->pdo->prepare('SELECT id, uri FROM `'.$this->tableName.'` WHERE uri IN (? ' . str_repeat(', ? ', count($members)) . ');');
-        $stmt->execute(array_merge(array($principal), $members));
-
-        $memberIds = array();
-        $principalId = null;
-
-        while($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
-            if ($row['uri'] == $principal) {
-                $principalId = $row['id'];
-            } else {
-                $memberIds[] = $row['id'];
-            }
-        }
-        if (!$principalId) throw new Sabre_DAV_Exception('Principal not found');
-
-        // Wiping out old members
-        $stmt = $this->pdo->prepare('DELETE FROM `'.$this->groupMembersTableName.'` WHERE principal_id = ?;');
-        $stmt->execute(array($principalId));
-
-        foreach($memberIds as $memberId) {
-
-            $stmt = $this->pdo->prepare('INSERT INTO `'.$this->groupMembersTableName.'` (principal_id, member_id) VALUES (?, ?);');
-            $stmt->execute(array($principalId, $memberId));
-
-        }
-
-    }
-
-}
diff --git a/3rdparty/Sabre/DAVACL/PrincipalCollection.php b/3rdparty/Sabre/DAVACL/PrincipalCollection.php
deleted file mode 100644
index 4d22bf8aa75..00000000000
--- a/3rdparty/Sabre/DAVACL/PrincipalCollection.php
+++ /dev/null
@@ -1,35 +0,0 @@
-<?php
-
-/**
- * Principals Collection
- *
- * This collection represents a list of users. It uses
- * Sabre_DAV_Auth_Backend to determine which users are available on the list.
- *
- * The users are instances of Sabre_DAV_Auth_Principal
- * 
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_DAVACL_PrincipalCollection extends Sabre_DAVACL_AbstractPrincipalCollection {
-
-    /**
-     * This method returns a node for a principal.
-     *
-     * The passed array contains principal information, and is guaranteed to
-     * at least contain a uri item. Other properties may or may not be
-     * supplied by the authentication backend.
-     * 
-     * @param array $principal 
-     * @return Sabre_DAV_INode 
-     */
-    public function getChildForPrincipal(array $principal) {
-
-        return new Sabre_DAVACL_Principal($this->principalBackend, $principal);
-
-    }
-
-}
diff --git a/3rdparty/Sabre/DAVACL/Property/Acl.php b/3rdparty/Sabre/DAVACL/Property/Acl.php
deleted file mode 100644
index e41e7411310..00000000000
--- a/3rdparty/Sabre/DAVACL/Property/Acl.php
+++ /dev/null
@@ -1,186 +0,0 @@
-<?php
-
-/**
- * This class represents the {DAV:}acl property 
- * 
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_DAVACL_Property_Acl extends Sabre_DAV_Property {
-
-    /**
-     * List of privileges 
-     * 
-     * @var array 
-     */
-    private $privileges;
-
-    /**
-     * Wether or not the server base url is required to be prefixed when 
-     * serializing the property. 
-     * 
-     * @var boolean 
-     */
-    private $prefixBaseUrl;
-
-    /**
-     * Constructor
-     *
-     * This object requires a structure similar to the return value from 
-     * Sabre_DAVACL_Plugin::getACL().
-     *
-     * Each privilege is a an array with at least a 'privilege' property, and a 
-     * 'principal' property. A privilege may have a 'protected' property as 
-     * well. 
-     *
-     * The prefixBaseUrl should be set to false, if the supplied principal urls 
-     * are already full urls. If this is kept to true, the servers base url 
-     * will automatically be prefixed. 
-     *
-     * @param bool $prefixBaseUrl 
-     * @param array $privileges 
-     */
-    public function __construct(array $privileges, $prefixBaseUrl = true) {
-
-        $this->privileges = $privileges;
-        $this->prefixBaseUrl = $prefixBaseUrl;
-
-    }
-
-    /**
-     * Returns the list of privileges for this property 
-     * 
-     * @return array 
-     */
-    public function getPrivileges() {
-
-        return $this->privileges;
-
-    }
-
-    /**
-     * Serializes the property into a DOMElement 
-     * 
-     * @param Sabre_DAV_Server $server 
-     * @param DOMElement $node 
-     * @return void
-     */
-    public function serialize(Sabre_DAV_Server $server,DOMElement $node) {
-
-        $doc = $node->ownerDocument;
-        foreach($this->privileges as $ace) {
-
-            $this->serializeAce($doc, $node, $ace, $server);
-
-        }
-
-    }
-
-    /**
-     * Unserializes the {DAV:}acl xml element. 
-     * 
-     * @param DOMElement $dom 
-     * @return Sabre_DAVACL_Property_Acl 
-     */
-    static public function unserialize(DOMElement $dom) {
-
-        $privileges = array();
-        $xaces = $dom->getElementsByTagNameNS('urn:DAV','ace');
-        for($ii=0; $ii < $xaces->length; $ii++) {
-
-            $xace = $xaces->item($ii);
-            $principal = $xace->getElementsByTagNameNS('urn:DAV','principal');
-            if ($principal->length !== 1) {
-                throw new Sabre_DAV_Exception_BadRequest('Each {DAV:}ace element must have one {DAV:}principal element');
-            }
-            $principal = Sabre_DAVACL_Property_Principal::unserialize($principal->item(0));
-
-            if ($principal->getType()!==Sabre_DAVACL_Property_Principal::HREF) {
-                throw new Sabre_DAV_Exception_NotImplemented('Currently only uri based principals are support, {DAV:}all, {DAV:}unauthenticated and {DAV:}authenticated are not implemented yet');
-            }
-
-            $principal = $principal->getHref();
-            $protected = false;
-
-            if ($xace->getElementsByTagNameNS('urn:DAV','protected')->length > 0) {
-                $protected = true;
-            }
-
-            $grants = $xace->getElementsByTagNameNS('urn:DAV','grant');
-            if ($grants->length < 1) {
-                throw new Sabre_DAV_Exception_NotImplemented('Every {DAV:}ace element must have a {DAV:}grant element. {DAV:}deny is not yet supported');
-            }
-            $grant = $grants->item(0);
-
-            $xprivs = $grant->getElementsByTagNameNS('urn:DAV','privilege');
-            for($jj=0; $jj<$xprivs->length; $jj++) {
-
-                $xpriv = $xprivs->item($jj);
-
-                $privilegeName = null;
-
-                for ($kk=0;$kk<$xpriv->childNodes->length;$kk++) {
-
-                    $childNode = $xpriv->childNodes->item($kk);
-                    if ($t = Sabre_DAV_XMLUtil::toClarkNotation($childNode)) {
-                        $privilegeName = $t;
-                        break;
-                    }
-                }
-                if (is_null($privilegeName)) {
-                    throw new Sabre_DAV_Exception_BadRequest('{DAV:}privilege elements must have a privilege element contained within them.');
-                }
-
-                $privileges[] = array(
-                    'principal' => $principal,
-                    'protected' => $protected,
-                    'privilege' => $privilegeName,
-                );
-
-            } 
-
-        }
-
-        return new self($privileges);
-
-    }
-
-    /**
-     * Serializes a single access control entry. 
-     * 
-     * @param DOMDocument $doc 
-     * @param DOMElement $node 
-     * @param array $ace
-     * @param Sabre_DAV_Server $server 
-     * @return void
-     */
-    private function serializeAce($doc,$node,$ace, $server) {
-
-        $xace  = $doc->createElementNS('DAV:','d:ace');
-        $node->appendChild($xace);
-
-        $principal = $doc->createElementNS('DAV:','d:principal');
-        $xace->appendChild($principal);
-        $principal->appendChild($doc->createElementNS('DAV:','d:href',($this->prefixBaseUrl?$server->getBaseUri():'') . $ace['principal'] . '/'));
-
-        $grant = $doc->createElementNS('DAV:','d:grant');
-        $xace->appendChild($grant);
-
-        $privParts = null;
-
-        preg_match('/^{([^}]*)}(.*)$/',$ace['privilege'],$privParts);
-
-        $xprivilege = $doc->createElementNS('DAV:','d:privilege');
-        $grant->appendChild($xprivilege);
-
-        $xprivilege->appendChild($doc->createElementNS($privParts[1],'d:'.$privParts[2]));
-
-        if (isset($ace['protected']) && $ace['protected'])
-            $xace->appendChild($doc->createElement('d:protected'));
-
-    }
-
-}
diff --git a/3rdparty/Sabre/DAVACL/Property/CurrentUserPrivilegeSet.php b/3rdparty/Sabre/DAVACL/Property/CurrentUserPrivilegeSet.php
deleted file mode 100644
index 72274597b31..00000000000
--- a/3rdparty/Sabre/DAVACL/Property/CurrentUserPrivilegeSet.php
+++ /dev/null
@@ -1,75 +0,0 @@
-<?php
-
-/**
- * CurrentUserPrivilegeSet
- * 
- * This class represents the current-user-privilege-set property. When 
- * requested, it contain all the privileges a user has on a specific node. 
- * 
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_DAVACL_Property_CurrentUserPrivilegeSet extends Sabre_DAV_Property {
-
-    /**
-     * List of privileges 
-     * 
-     * @var array 
-     */
-    private $privileges;
-
-    /**
-     * Creates the object
-     *
-     * Pass the privileges in clark-notation 
-     * 
-     * @param array $privileges 
-     */
-    public function __construct(array $privileges) {
-
-        $this->privileges = $privileges;
-
-    }
-
-    /**
-     * Serializes the property in the DOM 
-     * 
-     * @param Sabre_DAV_Server $server 
-     * @param DOMElement $node 
-     * @return void
-     */
-    public function serialize(Sabre_DAV_Server $server,DOMElement $node) {
-
-        $doc = $node->ownerDocument;
-        foreach($this->privileges as $privName) {
-
-            $this->serializePriv($doc,$node,$privName);
-
-        }
-
-    }
-
-    /**
-     * Serializes one privilege 
-     * 
-     * @param DOMDocument $doc 
-     * @param DOMElement $node 
-     * @param string $privName 
-     * @return void
-     */
-    protected function serializePriv($doc,$node,$privName) {
-
-        $xp  = $doc->createElementNS('DAV:','d:privilege');
-        $node->appendChild($xp);
-
-        $privParts = null;
-        preg_match('/^{([^}]*)}(.*)$/',$privName,$privParts);
-
-        $xp->appendChild($doc->createElementNS($privParts[1],'d:'.$privParts[2]));
-
-    }
-
-}
diff --git a/3rdparty/Sabre/DAVACL/Property/Principal.php b/3rdparty/Sabre/DAVACL/Property/Principal.php
deleted file mode 100644
index dad9a3550fb..00000000000
--- a/3rdparty/Sabre/DAVACL/Property/Principal.php
+++ /dev/null
@@ -1,154 +0,0 @@
-<?php
-
-/**
- * Principal property
- *
- * The principal property represents a principal from RFC3744 (ACL).
- * The property can be used to specify a principal or pseudo principals. 
- *
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_DAVACL_Property_Principal extends Sabre_DAV_Property implements Sabre_DAV_Property_IHref {
-
-    /**
-     * To specify a not-logged-in user, use the UNAUTHENTICTED principal
-     */
-    const UNAUTHENTICATED = 1;
-
-    /**
-     * To specify any principal that is logged in, use AUTHENTICATED
-     */
-    const AUTHENTICATED = 2;
-
-    /**
-     * Specific princpals can be specified with the HREF
-     */
-    const HREF = 3;
-
-    /**
-     * Principal-type
-     *
-     * Must be one of the UNAUTHENTICATED, AUTHENTICATED or HREF constants.
-     * 
-     * @var int 
-     */
-    private $type;
-
-    /**
-     * Url to principal
-     *
-     * This value is only used for the HREF principal type.
-     * 
-     * @var string 
-     */
-    private $href;
-
-    /**
-     * Creates the property.
-     *
-     * The 'type' argument must be one of the type constants defined in this class.
-     *
-     * 'href' is only required for the HREF type.
-     * 
-     * @param int $type 
-     * @param string $href 
-     * @return void
-     */
-    public function __construct($type, $href = null) {
-
-        $this->type = $type;
-
-        if ($type===self::HREF && is_null($href)) {
-            throw new Sabre_DAV_Exception('The href argument must be specified for the HREF principal type.');
-        }
-        $this->href = $href;
-
-    }
-
-    /**
-     * Returns the principal type 
-     * 
-     * @return int 
-     */
-    public function getType() {
-
-        return $this->type;
-
-    }
-
-    /**
-     * Returns the principal uri. 
-     * 
-     * @return string
-     */
-    public function getHref() {
-
-        return $this->href;
-
-    }
-
-    /**
-     * Serializes the property into a DOMElement. 
-     * 
-     * @param Sabre_DAV_Server $server 
-     * @param DOMElement $node 
-     * @return void
-     */
-    public function serialize(Sabre_DAV_Server $server, DOMElement $node) {
-
-        $prefix = $server->xmlNamespaces['DAV:'];
-        switch($this->type) {
-
-            case self::UNAUTHENTICATED :
-                $node->appendChild(
-                    $node->ownerDocument->createElement($prefix . ':unauthenticated')
-                );
-                break;
-            case self::AUTHENTICATED :
-                $node->appendChild(
-                    $node->ownerDocument->createElement($prefix . ':authenticated')
-                );
-                break;
-            case self::HREF :
-                $href = $node->ownerDocument->createElement($prefix . ':href');
-                $href->nodeValue = $server->getBaseUri() . $this->href;
-                $node->appendChild($href);
-                break;
-
-        }
-
-    }
-
-    /**
-     * Deserializes a DOM element into a property object. 
-     * 
-     * @param DOMElement $dom 
-     * @return Sabre_DAV_Property_Principal 
-     */
-    static public function unserialize(DOMElement $dom) {
-
-        $parent = $dom->firstChild;
-        while(!Sabre_DAV_XMLUtil::toClarkNotation($parent)) {
-            $parent = $parent->nextSibling;
-        }
-
-        switch(Sabre_DAV_XMLUtil::toClarkNotation($parent)) {
-
-            case '{DAV:}unauthenticated' :
-                return new self(self::UNAUTHENTICATED);
-            case '{DAV:}authenticated' :
-                return new self(self::AUTHENTICATED);
-            case '{DAV:}href':
-                return new self(self::HREF, $parent->textContent);
-            default :
-                throw new Sabre_DAV_Exception_BadRequest('Unexpected element (' . Sabre_DAV_XMLUtil::toClarkNotation($parent) . '). Could not deserialize');
-
-        }
-
-    }
-
-}
diff --git a/3rdparty/Sabre/DAVACL/Property/SupportedPrivilegeSet.php b/3rdparty/Sabre/DAVACL/Property/SupportedPrivilegeSet.php
deleted file mode 100644
index 93c3895035d..00000000000
--- a/3rdparty/Sabre/DAVACL/Property/SupportedPrivilegeSet.php
+++ /dev/null
@@ -1,92 +0,0 @@
-<?php
-
-/**
- * SupportedPrivilegeSet property
- *
- * This property encodes the {DAV:}supported-privilege-set property, as defined 
- * in rfc3744. Please consult the rfc for details about it's structure.
- *
- * This class expects a structure like the one given from 
- * Sabre_DAVACL_Plugin::getSupportedPrivilegeSet as the argument in its 
- * constructor.
- *   
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/) 
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_DAVACL_Property_SupportedPrivilegeSet extends Sabre_DAV_Property {
-
-    /**
-     * privileges 
-     * 
-     * @var array 
-     */
-    private $privileges;
-
-    /**
-     * Constructor 
-     * 
-     * @param array $privileges 
-     */
-    public function __construct(array $privileges) {
-
-        $this->privileges = $privileges;
-
-    }
-
-    /**
-     * Serializes the property into a domdocument. 
-     * 
-     * @param Sabre_DAV_Server $server 
-     * @param DOMElement $node 
-     * @return void
-     */
-    public function serialize(Sabre_DAV_Server $server,DOMElement $node) {
-
-        $doc = $node->ownerDocument;
-        $this->serializePriv($doc, $node, $this->privileges);
-
-    }
-
-    /**
-     * Serializes a property
-     *
-     * This is a recursive function. 
-     * 
-     * @param DOMDocument $doc 
-     * @param DOMElement $node 
-     * @param array $privilege 
-     * @return void
-     */
-    private function serializePriv($doc,$node,$privilege) {
-
-        $xsp = $doc->createElementNS('DAV:','d:supported-privilege');
-        $node->appendChild($xsp);
-
-        $xp  = $doc->createElementNS('DAV:','d:privilege');
-        $xsp->appendChild($xp);
-
-        $privParts = null;
-        preg_match('/^{([^}]*)}(.*)$/',$privilege['privilege'],$privParts);
-
-        $xp->appendChild($doc->createElementNS($privParts[1],'d:'.$privParts[2]));
-
-        if (isset($privilege['abstract']) && $privilege['abstract']) {
-            $xsp->appendChild($doc->createElementNS('DAV:','d:abstract'));
-        }
-
-        if (isset($privilege['description'])) {
-            $xsp->appendChild($doc->createElementNS('DAV:','d:description',$privilege['description']));
-        }
-
-        if (isset($privilege['aggregates'])) { 
-            foreach($privilege['aggregates'] as $subPrivilege) {
-                $this->serializePriv($doc,$xsp,$subPrivilege);
-            }
-        }
-
-    }
-
-}
diff --git a/3rdparty/Sabre/DAVACL/Version.php b/3rdparty/Sabre/DAVACL/Version.php
deleted file mode 100644
index 124463e311e..00000000000
--- a/3rdparty/Sabre/DAVACL/Version.php
+++ /dev/null
@@ -1,24 +0,0 @@
-<?php
-
-/**
- * This class contains the SabreDAV version constants.
- * 
- * @package Sabre
- * @subpackage DAVACL
- * @copyright Copyright (C) 2007-2011 Rooftop Solutions. All rights reserved.
- * @author Evert Pot (http://www.rooftopsolutions.nl/)
- * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
- */
-class Sabre_DAVACL_Version {
-
-    /**
-     * Full version number
-     */
-    const VERSION = '1.5.2';
-
-    /**
-     * Stability : alpha, beta, stable
-     */
-    const STABILITY = 'stable';
-
-}