remove the 3rdparty files. everything is now in https://gitorious.org/owncloud/3rdparty

1 files changed, 0 insertions, 1238 deletions

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);
-
-    }
-
-
-    /* }}} */
-
-}