<?php use Friendica\Model\User; class Sabre_DAV_Auth_Backend_Std extends Sabre_DAV_Auth_Backend_AbstractBasic { /** * @var Sabre_DAV_Auth_Backend_Std|null */ private static $instance = null; /** * @static * @return Sabre_DAV_Auth_Backend_Std */ public static function getInstance() { if (is_null(self::$instance)) { self::$instance = new Sabre_DAV_Auth_Backend_Std(); } return self::$instance; } /** * @return array */ public function getUsers() { return [$this->currentUser]; } /** * @return null|string */ public function getCurrentUser() { return $this->currentUser; } /** * Authenticates the user based on the current request. * * If authentication is successful, true must be returned. * If authentication fails, an exception must be thrown. * * @param Sabre_DAV_Server $server * @param string $realm * @throws Sabre_DAV_Exception_NotAuthenticated * @return bool */ public function authenticate(Sabre_DAV_Server $server, $realm) { $a = get_app(); if (isset($a->user["uid"])) { $this->currentUser = strtolower($a->user["nickname"]); return true; } $auth = new Sabre_HTTP_BasicAuth(); $auth->setHTTPRequest($server->httpRequest); $auth->setHTTPResponse($server->httpResponse); $auth->setRealm($realm); $userpass = $auth->getUserPass(); if (!$userpass) { $auth->requireLogin(); throw new Sabre_DAV_Exception_NotAuthenticated('No basic authentication headers were found'); } // Authenticates the user if (!$this->validateUserPass($userpass[0], $userpass[1])) { $auth->requireLogin(); throw new Sabre_DAV_Exception_NotAuthenticated('Username or password does not match'); } $this->currentUser = strtolower($userpass[0]); return true; } /** * @param string $username * @param string $password * @return bool */ protected function validateUserPass($username, $password) { return User::authenticate($username, $password); } }