try {

$request = \OC::$server->getRequest();

// in case the request content type is text/xml - we assume it's a WebDAV request

$isXmlContentType = strpos($request->getHeader('Content-Type'), 'text/xml');

if ($isXmlContentType === 0) {

// fire up a simple server to properly process the exception

$server = new Server();

if (!($e instanceof RemoteException)) {

// we shall not log on RemoteException

$server->addPlugin(new ExceptionLoggerPlugin('webdav', \OC::$server->get(LoggerInterface::class)));

}

$server->on('beforeMethod:*', function () use ($e) {

if ($e instanceof RemoteException) {

switch ($e->getCode()) {

case 503:

throw new ServiceUnavailable($e->getMessage());

case 404:

throw new \Sabre\DAV\Exception\NotFound($e->getMessage());

}

}

$class = get_class($e);

$msg = $e->getMessage();

throw new ServiceUnavailable("$class: $msg");

});

$server->exec();

} else {

$statusCode = 500;

if ($e instanceof \OC\ServiceUnavailableException) {

$statusCode = 503;

}

if ($e instanceof RemoteException) {

// we shall not log on RemoteException

OC_Template::printErrorPage($e->getMessage(), '', $e->getCode());

} else {

\OC::$server->get(LoggerInterface::class)->error($e->getMessage(), ['app' => 'remote','exception' => $e]);

OC_Template::printExceptionErrorPage($e, $statusCode);

}

}

} catch (\Exception $e) {

OC_Template::printExceptionErrorPage($e, 500);

}

$services = [

'webdav' => 'dav/appinfo/v1/webdav.php',

'dav' => 'dav/appinfo/v2/remote.php',

'caldav' => 'dav/appinfo/v1/caldav.php',

'calendar' => 'dav/appinfo/v1/caldav.php',

'carddav' => 'dav/appinfo/v1/carddav.php',

'contacts' => 'dav/appinfo/v1/carddav.php',

'files' => 'dav/appinfo/v1/webdav.php',

'direct' => 'dav/appinfo/v2/direct.php',

];

if (isset($services[$service])) {

return $services[$service];

}

return \OC::$server->getConfig()->getAppValue('core', 'remote_' . $service);