<?php
/**
 * @file Zotlabs/Module/Dav.php
 * @brief Initialize Hubzilla's cloud (SabreDAV).
 *
 * Module for accessing the DAV storage area from a DAV client.
 */

namespace Zotlabs\Module;

use \Sabre\DAV as SDAV;
use \Zotlabs\Storage;

require_once('include/attach.php');

class Dav extends \Zotlabs\Web\Controller {

	/**
	 * @brief Fires up the SabreDAV server.
	 *
	 */
	function init() {

		// 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;
			}
		}

		if (! is_dir('store'))
			os_mkdir('store', STORAGE_DEFAULT_PERMISSIONS, false);

		if (argc() > 1)
			profile_load(argv(1),0);


		$auth = new \Zotlabs\Storage\BasicAuth();
		$auth->setRealm(ucfirst(\Zotlabs\Lib\System::get_platform_name()) . ' ' . 'WebDAV');

		$rootDirectory = new \Zotlabs\Storage\Directory('/', $auth);

		// A SabreDAV server-object
		$server = new SDAV\Server($rootDirectory);


		$authPlugin = new \Sabre\DAV\Auth\Plugin($auth);
		$server->addPlugin($authPlugin);


		// prevent overwriting changes each other with a lock backend
		$lockBackend = new SDAV\Locks\Backend\File('store/[data]/locks');
		$lockPlugin = new SDAV\Locks\Plugin($lockBackend);

		$server->addPlugin($lockPlugin);

		// provide a directory view for the cloud in Hubzilla
		$browser = new \Zotlabs\Storage\Browser($auth);
		$auth->setBrowserPlugin($browser);

		// Experimental QuotaPlugin
		// $server->addPlugin(new \Zotlabs\Storage\QuotaPlugin($auth));

		// All we need to do now, is to fire up the server
		$server->exec();

		killme();
	}

}