Completed
Pull Request — master (#8)
by Andreas
02:24
created

OAuth::getNoAuthResponse()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 8
Code Lines 4

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 1 Features 0
Metric Value
c 1
b 1
f 0
dl 0
loc 8
rs 9.4285
cc 1
eloc 4
nc 1
nop 3
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<?php
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/**
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 * Copyright (c) 2016-2016 The callingallpapers.com Developer Team
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * in the Software without restriction, including without limitation the rights
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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 * THE SOFTWARE.
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 *
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 * @author    Andreas Heigl<[email protected]>
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 * @copyright 2016-2016 The callingallpapers.com Developer Team
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 * @license   http://www.opensource.org/licenses/mit-license.php MIT-License
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 * @version   0.0
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 * @since     16.01.2016
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 * @link      https://github.com/joindin/callingallpapers
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 */
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namespace Callingallpapers\Api\Middleware;
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use Callingallpapers\Api\PersistenceLayer\UserPersistenceLayer;
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use Psr\Http\Message\ResponseInterface;
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use Psr\Http\Message\ServerRequestInterface;
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class OAuth
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{
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    protected $app;
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    public function __construct($app)
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    {
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        $this->app = $app;
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    }
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    /**
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     * Example middleware invokable class
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     *
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     * @param  \Psr\Http\Message\ServerRequestInterface $request  PSR7 request
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     * @param  \Psr\Http\Message\ResponseInterface      $response PSR7 response
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     * @param  callable                                 $next     Next middleware
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     *
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     * @return \Psr\Http\Message\ResponseInterface
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     */
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    public function __invoke(
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        ServerRequestInterface $request,
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        ResponseInterface $response,
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        callable $next
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    ) {
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        $auth = $request->getHeader('Authenticate');
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        if ($request->getMethod() === 'GET') {
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            // Get is allowed without authentication
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            // Rate-Limit is handlede by another Middleware
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            return $next($request, $response);
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        }
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        if (empty($auth)) {
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            return $this->getNoAuthResponse($response);
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        }
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        $bearer = explode(' ', $auth[0]);
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        if (! isset($bearer[1])) {
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            return $this->getNoAuthResponse($response);
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        }
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        $bearer = $bearer[1];
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        $upl = new UserPersistenceLayer($this->app->getContainer()['pdo']);
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        try {
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            $user = $upl->getUserForToken($bearer);
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        } catch (\Exception $e) {
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            return $this->getNoAuthResponse($response, 'invalid token', 'Invalid Access-Token provided');
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        }
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        $request = $request->withAttribute('user', $user['user']);
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        return $next($request, $response);
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    }
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    protected function getNoAuthResponse($response, $error = 'no token', $description = 'No Access-Token provided')
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    {
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        $response = $response->withHeader('WWW-Authenticate', 'Bearer realm="callingallpapers", error="' . $error . '", error_desciption="' . $description . '"');
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        $response = $response->withStatus(401);
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        return $response;
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    }
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}
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