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PrincipalBackend.php
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PrincipalBackend.php
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<?php
namespace Kolab\DAVACL;
use Sabre\DAV\Exception;
use Sabre\DAV\URLUtil;
use Kolab\DAV\Auth\HTTPBasic;
/**
* Kolab Principal Backend
*/
class PrincipalBackend implements \Sabre\DAVACL\PrincipalBackend\BackendInterface
{
protected $fieldmap = array(
// The users' real name.
'{DAV:}displayname' => 'displayname',
// The users' primary email-address.
'{http://sabredav.org/ns}email-address' => 'email',
/**
* This property is actually used by the CardDAV plugin, where it gets
* mapped to {http://calendarserver.orgi/ns/}me-card.
*/
'{http://sabredav.org/ns}vcard-url' => 'vcardurl',
);
/**
* Sets up the backend.
*/
public function __construct()
{
}
/**
* Returns a pricipal record for the currently authenticated user
*/
public function getCurrentUser()
{
if (HTTPBasic::$current_user) {
return array(
'uri' => '/' . HTTPBasic::$current_user,
'{DAV:}displayname' => HTTPBasic::$current_user,
);
}
return false;
}
/**
* 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)
{
$principals = array();
if ($prefixPath == 'principals') {
// TODO: list users from LDAP
// we currently only advertise the authenticated user
if ($user = $this->getCurrentUser()) {
$principals[] = $user;
}
}
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($prefix,$name) = explode('/', $path);
if ($prefix == 'principals' && $name == HTTPBasic::$current_user) {
return $this->getCurrentUser();
}
return null;
}
/**
* Returns the list of members for a group-principal
*
* @param string $principal
* @return array
*/
public function getGroupMemberSet($principal)
{
// TODO: for now the group principal has only one member, the user itself
list($prefix, $name) = URLUtil::splitPath($principal);
$principal = $this->getPrincipalByPath($prefix);
if (!$principal) throw new Exception('Principal not found');
return array(
$prefix
);
}
/**
* Returns the list of groups a principal is a member of
*
* @param string $principal
* @return array
*/
public function getGroupMembership($principal)
{
list($prefix,$name) = URLUtil::splitPath($principal);
$group_membership = array();
if ($prefix == 'principals') {
$principal = $this->getPrincipalByPath($principal);
if (!$principal) throw new Exception('Principal not found');
// TODO: for now the user principal has only its own groups
return array(
'principals/'.$name.'/calendar-proxy-read',
'principals/'.$name.'/calendar-proxy-write',
// The addressbook groups are not supported in Sabre,
// see http://groups.google.com/group/sabredav-discuss/browse_thread/thread/ef2fa9759d55f8c#msg_5720afc11602e753
//'principals/'.$name.'/addressbook-proxy-read',
//'principals/'.$name.'/addressbook-proxy-write',
);
}
return $group_membership;
}
/**
* 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 $members
* @return void
*/
public function setGroupMemberSet($principal, array $members)
{
throw new Exception('Setting members of the group is not supported yet');
}
function updatePrincipal($path, $mutations)
{
return 0;
}
function searchPrincipals($prefixPath, array $searchProperties)
{
return 0;
}
}

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