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<?php
declare(strict_types=1);
namespace Sabre\DAVACL;
use Sabre\DAV;
use Sabre\Uri;
/**
* 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.
*
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
* @author Evert Pot (http://evertpot.com/)
* @license http://sabre.io/license/ Modified BSD License
*/
abstract class AbstractPrincipalCollection extends DAV\Collection implements IPrincipalCollection
{
/**
* Principal backend.
*
* @var PrincipalBackend\BackendInterface
*/
protected $principalBackend;
/**
* The path to the principals we're listing from.
*
* @var string
*/
protected $principalPrefix;
/**
* 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 string $principalPrefix
*/
public function __construct(PrincipalBackend\BackendInterface $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.
*
* @return DAV\INode
*/
abstract public function getChildForPrincipal(array $principalInfo);
/**
* Returns the name of this collection.
*
* @return string
*/
public function getName()
{
list(, $name) = Uri\split($this->principalPrefix);
return $name;
}
/**
* Return the list of users.
*
* @return array
*/
public function getChildren()
{
if ($this->disableListing) {
throw new DAV\Exception\MethodNotAllowed('Listing members of this collection is disabled');
}
$children = [];
foreach ($this->principalBackend->getPrincipalsByPrefix($this->principalPrefix) as $principalInfo) {
$children[] = $this->getChildForPrincipal($principalInfo);
}
return $children;
}
/**
* Returns a child object, by its name.
*
* @param string $name
*
* @throws DAV\Exception\NotFound
*
* @return DAV\INode
*/
public function getChild($name)
{
$principalInfo = $this->principalBackend->getPrincipalByPath($this->principalPrefix.'/'.$name);
if (!$principalInfo) {
throw new 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.
*
* By default, if multiple properties are submitted to this method, the
* various properties should be combined with 'AND'. If $test is set to
* 'anyof', it should be combined using 'OR'.
*
* This method should simply return a list of 'child names', which may be
* used to call $this->getChild in the future.
*
* @param string $test
*
* @return array
*/
public function searchPrincipals(array $searchProperties, $test = 'allof')
{
$result = $this->principalBackend->searchPrincipals($this->principalPrefix, $searchProperties, $test);
$r = [];
foreach ($result as $row) {
list(, $r[]) = Uri\split($row);
}
return $r;
}
/**
* Finds a principal by its URI.
*
* This method may receive any type of uri, but mailto: addresses will be
* the most common.
*
* Implementation of this API is optional. It is currently used by the
* CalDAV system to find principals based on their email addresses. If this
* API is not implemented, some features may not work correctly.
*
* This method must return a relative principal path, or null, if the
* principal was not found or you refuse to find it.
*
* @param string $uri
*
* @return string
*/
public function findByUri($uri)
{
return $this->principalBackend->findByUri($uri, $this->principalPrefix);
}
}
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