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<?php
/**
* @author Morris Jobke <hey@morrisjobke.de>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Vincent Petry <pvince81@owncloud.com>
*
* @copyright Copyright (c) 2015, ownCloud, Inc.
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\Connector\Sabre;
use OCP\ILogger;
use Sabre\DAV\Exception;
use Sabre\HTTP\Response;
class ExceptionLoggerPlugin extends \Sabre\DAV\ServerPlugin {
private $nonFatalExceptions = array(
'Sabre\DAV\Exception\NotAuthenticated' => true,
// the sync client uses this to find out whether files exist,
// so it is not always an error, log it as debug
'Sabre\DAV\Exception\NotFound' => true,
// this one mostly happens when the same file is uploaded at
// exactly the same time from two clients, only one client
// wins, the second one gets "Precondition failed"
'Sabre\DAV\Exception\PreconditionFailed' => true,
// forbidden can be expected when trying to upload to
// read-only folders for example
'Sabre\DAV\Exception\Forbidden' => true,
);
/** @var string */
private $appName;
/** @var ILogger */
private $logger;
/**
* @param string $loggerAppName app name to use when logging
* @param ILogger $logger
*/
public function __construct($loggerAppName, $logger) {
$this->appName = $loggerAppName;
$this->logger = $logger;
}
/**
* This initializes the plugin.
*
* This function is called by \Sabre\DAV\Server, after
* addPlugin is called.
*
* This method should set up the required event subscriptions.
*
* @param \Sabre\DAV\Server $server
* @return void
*/
public function initialize(\Sabre\DAV\Server $server) {
$server->on('exception', array($this, 'logException'), 10);
}
/**
* Log exception
*
*/
public function logException(\Exception $ex) {
$exceptionClass = get_class($ex);
$level = \OCP\Util::FATAL;
if (isset($this->nonFatalExceptions[$exceptionClass])) {
$level = \OCP\Util::DEBUG;
}
$message = $ex->getMessage();
if ($ex instanceof Exception) {
if (empty($message)) {
$response = new Response($ex->getHTTPCode());
$message = $response->getStatusText();
}
$message = "HTTP/1.1 {$ex->getHTTPCode()} $message";
}
$exception = [
'Message' => $message,
'Code' => $ex->getCode(),
'Trace' => $ex->getTraceAsString(),
'File' => $ex->getFile(),
'Line' => $ex->getLine(),
];
$this->logger->log($level, 'Exception: ' . json_encode($exception), ['app' => $this->appName]);
}
}
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