<?php /** * @file mod/cloud.php * @brief Initialize RedMatrix's cloud (SabreDAV). * * Module for accessing the DAV storage area. */ use Sabre\DAV; use RedMatrix\RedDAV; // composer autoloader for SabreDAV require_once('vendor/autoload.php'); // workaround for HTTP-auth in CGI mode if (x($_SERVER, 'REDIRECT_REMOTE_USER')) { $userpass = base64_decode(substr($_SERVER["REDIRECT_REMOTE_USER"], 6)) ; if(strlen($userpass)) { list($name, $password) = explode(':', $userpass); $_SERVER['PHP_AUTH_USER'] = $name; $_SERVER['PHP_AUTH_PW'] = $password; } } if (x($_SERVER, 'HTTP_AUTHORIZATION')) { $userpass = base64_decode(substr($_SERVER["HTTP_AUTHORIZATION"], 6)) ; if(strlen($userpass)) { list($name, $password) = explode(':', $userpass); $_SERVER['PHP_AUTH_USER'] = $name; $_SERVER['PHP_AUTH_PW'] = $password; } } /** * @brief Fires up the SabreDAV server. * * @param App &$a */ function cloud_init(&$a) { require_once('include/reddav.php'); if (! is_dir('store')) os_mkdir('store', STORAGE_DEFAULT_PERMISSIONS, false); $which = null; if (argc() > 1) $which = argv(1); $profile = 0; $a->page['htmlhead'] .= '<link rel="alternate" type="application/atom+xml" href="' . $a->get_baseurl() . '/feed/' . $which . '" />' . "\r\n"; if ($which) profile_load($a, $which, $profile); $auth = new RedDAV\RedBasicAuth(); $ob_hash = get_observer_hash(); if ($ob_hash) { if (local_channel()) { $channel = $a->get_channel(); $auth->setCurrentUser($channel['channel_address']); $auth->channel_id = $channel['channel_id']; $auth->channel_hash = $channel['channel_hash']; $auth->channel_account_id = $channel['channel_account_id']; if($channel['channel_timezone']) $auth->setTimezone($channel['channel_timezone']); } $auth->observer = $ob_hash; } if ($_GET['davguest']) $_SESSION['davguest'] = true; $_SERVER['QUERY_STRING'] = str_replace(array('?f=', '&f='), array('', ''), $_SERVER['QUERY_STRING']); $_SERVER['QUERY_STRING'] = strip_zids($_SERVER['QUERY_STRING']); $_SERVER['QUERY_STRING'] = preg_replace('/[\?&]davguest=(.*?)([\?&]|$)/ism', '', $_SERVER['QUERY_STRING']); $_SERVER['REQUEST_URI'] = str_replace(array('?f=', '&f='), array('', ''), $_SERVER['REQUEST_URI']); $_SERVER['REQUEST_URI'] = strip_zids($_SERVER['REQUEST_URI']); $_SERVER['REQUEST_URI'] = preg_replace('/[\?&]davguest=(.*?)([\?&]|$)/ism', '', $_SERVER['REQUEST_URI']); $rootDirectory = new RedDAV\RedDirectory('/', $auth); // A SabreDAV server-object $server = new DAV\Server($rootDirectory); // prevent overwriting changes each other with a lock backend $lockBackend = new DAV\Locks\Backend\File('store/[data]/locks'); $lockPlugin = new DAV\Locks\Plugin($lockBackend); $server->addPlugin($lockPlugin); // The next section of code allows us to bypass prompting for http-auth if a // FILE is being accessed anonymously and permissions allow this. This way // one can create hotlinks to public media files in their cloud and anonymous // viewers won't get asked to login. // If a DIRECTORY is accessed or there are permission issues accessing the // file and we aren't previously authenticated via zot, prompt for HTTP-auth. // This will be the default case for mounting a DAV directory. // In order to avoid prompting for passwords for viewing a DIRECTORY, add // the URL query parameter 'davguest=1'. $isapublic_file = false; $davguest = ((x($_SESSION, 'davguest')) ? true : false); if ((! $auth->observer) && ($_SERVER['REQUEST_METHOD'] === 'GET')) { try { $x = RedFileData('/' . $a->cmd, $auth); if($x instanceof RedDAV\RedFile) $isapublic_file = true; } catch (Exception $e) { $isapublic_file = false; } } if ((! $auth->observer) && (! $isapublic_file) && (! $davguest)) { try { $auth->Authenticate($server, t('$Projectname - Guests: Username: {your email address}, Password: +++')); } catch (Exception $e) { logger('mod_cloud: auth exception' . $e->getMessage()); http_status_exit($e->getHTTPCode(), $e->getMessage()); } } require_once('include/RedDAV/RedBrowser.php'); // provide a directory view for the cloud in Red Matrix $browser = new RedDAV\RedBrowser($auth); $auth->setBrowserPlugin($browser); $server->addPlugin($browser); // Experimental QuotaPlugin // require_once('include/RedDAV/QuotaPlugin.php'); // $server->addPlugin(new RedDAV\QuotaPlugin($auth)); // All we need to do now, is to fire up the server $server->exec(); killme(); }