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<?php |
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/** |
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* @copyright Copyright (c) 2018 Robin Appelman <[email protected]> |
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* |
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* @license GNU AGPL version 3 or any later version |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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namespace OCA\DAV\Connector\Sabre; |
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use Sabre\DAV\CorePlugin; |
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use Sabre\DAV\FS\Directory; |
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use Sabre\DAV\ServerPlugin; |
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use Sabre\DAV\Tree; |
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use Sabre\HTTP\RequestInterface; |
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use Sabre\HTTP\ResponseInterface; |
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class AnonymousOptionsPlugin extends ServerPlugin { |
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/** |
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* @var \Sabre\DAV\Server |
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*/ |
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private $server; |
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/** |
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* @param \Sabre\DAV\Server $server |
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* @return void |
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*/ |
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public function initialize(\Sabre\DAV\Server $server) { |
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$this->server = $server; |
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// before auth |
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$this->server->on('beforeMethod', [$this, 'handleAnonymousOptions'], 9); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isRequestInRoot($path) { |
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return $path === '' || (is_string($path) && strpos($path, '/') === FALSE); |
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} |
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/** |
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* @throws \Sabre\DAV\Exception\Forbidden |
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* @return bool |
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*/ |
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public function handleAnonymousOptions(RequestInterface $request, ResponseInterface $response) { |
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$isOffice = preg_match('/Microsoft Office/i', $request->getHeader('User-Agent')); |
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$isAnonymousOption = ($request->getMethod() === 'OPTIONS' && ($request->getHeader('Authorization') === null || trim($request->getHeader('Authorization')) === 'Bearer') && $this->isRequestInRoot($request->getPath())); |
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$isOfficeHead = $request->getMethod() === 'HEAD' && $isOffice && $request->getHeader('Authorization') === 'Bearer'; |
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if ($isAnonymousOption || $isOfficeHead) { |
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/** @var CorePlugin $corePlugin */ |
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$corePlugin = $this->server->getPlugin('core'); |
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// setup a fake tree for anonymous access |
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$this->server->tree = new Tree(new Directory('')); |
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$corePlugin->httpOptions($request, $response); |
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$this->server->emit('afterMethod', [$request, $response]); |
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$this->server->emit('afterMethod:OPTIONS', [$request, $response]); |
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$this->server->sapi->sendResponse($response); |
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return false; |
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} |
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} |
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} |
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nextcloud /
server
Let?s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let?s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: