93 lines
2.4 KiB
PHP
93 lines
2.4 KiB
PHP
<?php
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/**
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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*
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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* @license AGPL-3.0
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*
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* This code 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, version 3,
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* as published by the Free Software Foundation.
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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, version 3,
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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\DAV;
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use Sabre\DAV\Auth\Backend\BackendInterface;
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use Sabre\HTTP\RequestInterface;
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use Sabre\HTTP\ResponseInterface;
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class PublicAuth implements BackendInterface {
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/** @var string[] */
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private $publicURLs;
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public function __construct() {
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$this->publicURLs = [
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'public-calendars',
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'principals/system/public'
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];
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}
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/**
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* When this method is called, the backend must check if authentication was
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* successful.
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*
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* The returned value must be one of the following
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*
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* [true, "principals/username"]
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* [false, "reason for failure"]
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*
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* If authentication was successful, it's expected that the authentication
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* backend returns a so-called principal url.
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*
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* Examples of a principal url:
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*
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* principals/admin
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* principals/user1
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* principals/users/joe
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* principals/uid/123457
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*
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* If you don't use WebDAV ACL (RFC3744) we recommend that you simply
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* return a string such as:
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*
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* principals/users/[username]
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*
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* @param RequestInterface $request
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* @param ResponseInterface $response
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* @return array
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*/
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function check(RequestInterface $request, ResponseInterface $response) {
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if ($this->isRequestPublic($request)) {
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return [true, "principals/system/public"];
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}
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return [false, "No public access to this resource."];
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}
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/**
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* @inheritdoc
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*/
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function challenge(RequestInterface $request, ResponseInterface $response) {
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}
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/**
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* @param RequestInterface $request
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* @return bool
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*/
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private function isRequestPublic(RequestInterface $request) {
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$url = $request->getPath();
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$matchingUrls = array_filter($this->publicURLs, function ($publicUrl) use ($url) {
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return strpos($url, $publicUrl, 0) === 0;
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});
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return !empty($matchingUrls);
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}
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}
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