<?php
/**
 * FileManger - WebDAV access
 *
 * For Apache FCGI you need the following rewrite rule:
 *
 * 	RewriteEngine on
 * 	RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]
 *
 * Otherwise authentication request will be send over and over again, as password is NOT available to PHP!
 *
 * @link https://www.egroupware.org
 * @license https://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
 * @package api
 * @subpackage vfs
 * @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
 * @copyright (c) 2006-21 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
 */

use EGroupware\Api;
use EGroupware\Api\Vfs;

//$starttime = microtime(true);
$GLOBALS['egw_info'] = array(
	'flags' => array(
		'disable_Template_class' => True,
		'noheader'  => True,
		'currentapp' => (static function($uri)
		{
			if (preg_match('#/webdav.php/(etemplates|apps/([A-Za-z0-9_-]+)|home/[^/]+/.tmp)/#', $uri, $matches))
			{
				if (!empty($matches[2]))
				{
					return $matches[2];
				}
				// allow access to mounted eTemplates and temp file upload
				return 'api';
			}
			return 'filemanager';
		})($_SERVER['REQUEST_URI']),
		/**
		 * check if the given user has access
		 *
		 * Create a session or if the user has no account return authenticate header and 401 Unauthorized
		 *
		 * @param array &$account
		 * @return int session-id
		 */
		'autocreate_session_callback' => static function(&$account)
		{
			if (isset($_GET['auth']))
			{
				list($_SERVER['PHP_AUTH_USER'], $_SERVER['PHP_AUTH_PW']) = explode(':', base64_decode($_GET['auth']),2);
			}
			return Api\Header\Authenticate::autocreate_session_callback($account);
		},
		'no_exception_handler' => 'basic_auth',	// we use a basic auth exception handler (sends exception message as basic auth realm)
		'auth_realm' => 'EGroupware WebDAV server',	// cant use Vfs\WebDAV::REALM as autoloading and include path not yet setup!
	)
);

try
{
	// if you move this file somewhere else, you need to adapt the path to the header!
	require_once __DIR__.'/header.inc.php';
}
catch (Api\Exception\NoPermission\App $e)
{
	if (isset($GLOBALS['egw_info']['user']['apps']['filemanager']))
	{
		$GLOBALS['egw_info']['currentapp'] = 'filemanager';
	}
	elseif (isset($GLOBALS['egw_info']['user']['apps']['sitemgr-link']))
	{
		$GLOBALS['egw_info']['currentapp'] = 'sitemgr-link';
	}
	else
	{
		throw $e;
	}
}
//$headertime = microtime(true);

// webdav is stateless: we dont need to keep the session open, it only blocks other calls to same basic-auth session
$GLOBALS['egw']->session->commit_session();

$webdav_server = new Vfs\WebDAV();
$webdav_server->ServeRequest();
//error_log(sprintf('WebDAV %s request: status "%s", took %5.3f s'.($headertime?' (header include took %5.3f s)':''),$_SERVER['REQUEST_METHOD'].' '.$_SERVER['PATH_INFO'],$webdav_server->_http_status,microtime(true)-$starttime,$headertime-$starttime));