egroupware_official/webdav.php

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<?php
/**
* FileManger - WebDAV access
*
* Using the PEAR HTTP/WebDAV/Server class (which need to be installed!)
*
* @link http://www.egroupware.org
* @license http://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) 2006-9 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @version $Id$
*/
$starttime = microtime(true);
/**
* check if the given user has access
*
* Create a session or if the user has no account return authenticate header and 401 Unauthorized
*
* @param array &$account
* @return int session-id
*/
function check_access(&$account)
{
if (isset($_SERVER['PHP_AUTH_USER']))
{
$user = $_SERVER['PHP_AUTH_USER'];
$pass = $_SERVER['PHP_AUTH_PW'];
}
elseif(isset($_GET['auth']))
{
list($user,$pass) = explode(':',base64_decode($_GET['auth']),2);
}
if (!isset($user) || !($sessionid = $GLOBALS['egw']->session->create($user,$pass,'text')))
{
header('WWW-Authenticate: Basic realm="'.vfs_webdav_server::REALM.
// if the session class gives a reason why the login failed --> append it to the REALM
($GLOBALS['egw']->session->reason ? ': '.$GLOBALS['egw']->session->reason : '').'"');
header("HTTP/1.1 401 Unauthorized");
header("X-WebDAV-Status: 401 Unauthorized", true);
exit;
}
return $sessionid;
}
// if we are called with a /apps/$app path, use that $app as currentapp, to not require filemanager rights for the links
$parts = explode('/',$_SERVER['PATH_INFO']);
//error_log("webdav: explode".print_r($parts,true));
if(count($parts) == 1)
{
error_log(__METHOD__. "Malformed Url: missing slash:\n".$_SERVER['SERVER_NAME']."\n PATH_INFO:".$_SERVER['PATH_INFO'].
"\n REQUEST_URI".$_SERVER['REQUEST_URI']."\n ORIG_SCRIPT_NAME:".$_SERVER['ORIG_SCRIPT_NAME'].
"\n REMOTE_ADDR:".$_SERVER['REMOTE_ADDR']."\n PATH_INFO:".$_SERVER['PATH_INFO']."\n HTTP_USER_AGENT:".$_SERVER['HTTP_USER_AGENT']) ;
header("HTTP/1.1 501 Not implemented");
header("X-WebDAV-Status: 501 Not implemented", true);
exit;
}
$app = count($parts) > 3 && $parts[1] == 'apps' ? $parts[2] : 'filemanager';
$GLOBALS['egw_info'] = array(
'flags' => array(
'disable_Template_class' => True,
'noheader' => True,
'currentapp' => $app,
'autocreate_session_callback' => 'check_access',
'no_exception_handler' => 'basic_auth', // we use a basic auth exception handler (sends exception message as basic auth realm)
)
);
// if you move this file somewhere else, you need to adapt the path to the header!
try
{
include(dirname(__FILE__).'/header.inc.php');
}
catch (egw_exception_no_permission_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();
$webdav_server = new vfs_webdav_server();
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$user_agent = strtolower($_SERVER['HTTP_USER_AGENT']);
if (strstr($user_agent, 'microsoft-webdav') !== false)
{
// Windows 7 special treatment
$webdav_server->cnrnd = true;
}
$webdav_server->ServeRequest();
//error_log(sprintf("WebDAV %s request took %5.3f s (header include took %5.3f s)",$_SERVER['REQUEST_METHOD'],microtime(true)-$starttime,$headertime-$starttime));