fkooman\RemoteStorage\WebfingerModule

Complexity

Total Complexity

7

Size/Duplication

Total Lines	65
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	3

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
B	getWebfinger()	0	51	6

<?php

/**
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  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 Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

namespace fkooman\RemoteStorage;

use fkooman\RemoteStorage\Http\Exception\HttpException;
use fkooman\RemoteStorage\Http\Request;
use fkooman\RemoteStorage\Http\Response;

class WebfingerModule
{
    /** @var string */
    private $serverMode;

    /**
     * @param string $serverMode
     */
    public function __construct($serverMode)
    {
        $this->serverMode = $serverMode;
    }

    public function getWebfinger(Request $request)
    {
        $resource = $request->getQueryParameter('resource');
        if (null === $resource) {
            throw new HttpException('resource parameter missing', 400);
        }
        if (0 !== strpos($resource, 'acct:')) {
            throw new HttpException('unsupported resource type', 400);
        }
        $userAddress = substr($resource, 5);
        $atPos = strpos($userAddress, '@');
        if (false === $atPos) {
            throw new HttpException('invalid user address', 400);
        }
        $user = substr($userAddress, 0, $atPos);

        $webFingerData = [
            'links' => [
                [
                    'href' => sprintf('%s%s', $request->getRootUri(), $user),
                    'properties' => [
                        'http://remotestorage.io/spec/version' => 'draft-dejong-remotestorage-05',
                        'http://remotestorage.io/spec/web-authoring' => null,
                        'http://tools.ietf.org/html/rfc6749#section-4.2' => sprintf('%s_oauth/authorize?login_hint=%s', $request->getRootUri(), $user),
                        'http://tools.ietf.org/html/rfc6750#section-2.3' => 'true',
                        'http://tools.ietf.org/html/rfc7233' => 'development' !== $this->serverMode ? 'GET' : null,
                    ],
                    'rel' => 'http://tools.ietf.org/id/draft-dejong-remotestorage',
                ],
                // legacy -03 WebFinger response
                [
                    'href' => sprintf('%s%s', $request->getRootUri(), $user),
                    'properties' => [
                        'http://remotestorage.io/spec/version' => 'draft-dejong-remotestorage-03',
                        'http://tools.ietf.org/html/rfc2616#section-14.16' => 'development' !== $this->serverMode ? 'GET' : false,
                        'http://tools.ietf.org/html/rfc6749#section-4.2' => sprintf('%s_oauth/authorize?login_hint=%s', $request->getRootUri(), $user),
                        'http://tools.ietf.org/html/rfc6750#section-2.3' => true,
                    ],
                    'rel' => 'remotestorage',
                ],
            ],
        ];

        $response = new Response(200, 'application/jrd+json');
        $response->addHeader('Access-Control-Allow-Origin', '*');
        $response->setBody(
            json_encode($webFingerData)
        );

        return $response;
    }
}