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<?php
declare(strict_types=1);
use Sabre\DAV;
use Sabre\DAV\MkCol;
use Sabre\Uri;
class SabrePrincipalJsonBackend extends Sabre\DAVACL\PrincipalBackend\AbstractBackend {
protected $userMgr;
/**
* Sets up the backend.
*
* @param \PDO $pdo
*/
public function __construct (UserManager $userMgr) {
$this->userMgr = $userMgr;
}
/**
* 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) {
if ($prefixPath !== 'principals') {
return [];
}
$principals = [];
$users = $this->userMgr->getAll();
foreach ($users as $user) {
if ($user->id == 1) continue;
$principals[] = [
'uri' => 'principals/'.$user->username,
'{DAV:}displayname' => $user->username,
];
}
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) {
list($prefix,$username) = explode('/', $path);
if ($prefix !== 'principals') return;
$user = $this->userMgr->get($username);
if (!$user) return;
return [
'id' => $user['id'],
'uri' => 'principals/'.$user['username'],
'{DAV:}displayname' => $user['username'],
];
}
/**
* Updates one ore more webdav properties on a principal.
*
* The list of mutations is stored in a Sabre\DAV\PropPatch object.
* To do the actual updates, you must tell this object which properties
* you're going to process with the handle() method.
*
* Calling the handle method is like telling the PropPatch object "I
* promise I can handle updating this property".
*
* Read the PropPatch documentation for more info and examples.
*
* @param string $path
* @param DAV\PropPatch $propPatch
*/
public function updatePrincipal ($path, DAV\PropPatch $propPatch) {
return false;
}
/**
* 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.
*
* 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 an array with full principal uri's.
*
* If somebody attempted to search on a property the backend does not
* support, you should simply return 0 results.
*
* You can also just return 0 results if you choose to not support
* searching at all, but keep in mind that this may stop certain features
* from working.
*
* @param string $prefixPath
* @param array $searchProperties
* @param string $test
*
* @return array
*/
public function searchPrincipals ($prefixPath, array $searchProperties, $test = 'allof') {
return [];
}
/**
* 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
* @param string $principalPrefix
*
* @return string
*/
public function findByUri ($uri, $principalPrefix) {
return null;
}
/**
* Returns the list of members for a group-principal.
*
* @param string $principal
*
* @return array
*/
public function getGroupMemberSet ($principal) {
return [];
}
/**
* Returns the list of groups a principal is a member of.
*
* @param string $principal
*
* @return array
*/
public function getGroupMembership ($principal) {
return [];
}
/**
* 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 $members
*/
public function setGroupMemberSet ($principal, array $members) {}
/**
* Creates a new principal.
*
* This method receives a full path for the new principal. The mkCol object
* contains any additional webdav properties specified during the creation
* of the principal.
*
* @param string $path
* @param MkCol $mkCol
*/
public function createPrincipal ($path, MkCol $mkCol) {}
}