friendica-addons/dav/SabreDAV/lib/Sabre/DAVACL/AbstractPrincipalCollection.php

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2012-06-03 20:19:28 +02:00
<?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) 2007-2012 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 $disableListing = false;
/**
* Creates the object
*
* This object must be passed the principal backend. This object will
* filter all principals from a specified prefix ($principalPrefix). The
* default is 'principals', if your principals are stored in a different
* collection, override $principalPrefix
*
*
* @param Sabre_DAVACL_IPrincipalBackend $principalBackend
* @param string $principalPrefix
*/
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 $name;
}
/**
* Return the list of users
*
* @return array
*/
public function getChildren() {
if ($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 $name
* @throws Sabre_DAV_Exception_NotFound
* @return Sabre_DAVACL_IPrincipal
*/
public function getChild($name) {
$principalInfo = $this->principalBackend->getPrincipalByPath($this->principalPrefix . '/' . $name);
if (!$principalInfo) throw new Sabre_DAV_Exception_NotFound('Principal with name ' . $name . ' not found');
return $this->getChildForPrincipal($principalInfo);
}
/**
* This method is used to search for principals matching a set of
* properties.
*
* This search is specifically used by RFC3744's principal-property-search
* REPORT. You should at least allow searching on
* http://sabredav.org/ns}email-address.
*
* The actual search should be a unicode-non-case-sensitive search. The
* keys in searchProperties are the WebDAV property names, while the values
* are the property values to search on.
*
* If multiple properties are being searched on, the search should be
* AND'ed.
*
* This method should simply return a list of 'child names', which may be
* used to call $this->getChild in the future.
*
* @param array $searchProperties
* @return array
*/
public function searchPrincipals(array $searchProperties) {
$result = $this->principalBackend->searchPrincipals($this->principalPrefix, $searchProperties);
$r = array();
foreach($result as $row) {
list(, $r[]) = Sabre_DAV_URLUtil::splitPath($row);
}
return $r;
}
}