Location: PHPKode > projects > SabreDAV PHP Framework > lib/Sabre/DAVACL/IPrincipalBackend.php
<?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); 

}
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