| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  * Copyright (c) 2016-2016 The callingallpapers.com Developer Team | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * Permission is hereby granted, free of charge, to any person obtaining a copy | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * of this software and associated documentation files (the "Software"), to deal | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  * in the Software without restriction, including without limitation the rights | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  * copies of the Software, and to permit persons to whom the Software is | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * furnished to do so, subject to the following conditions: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * The above copyright notice and this permission notice shall be included in | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * all copies or substantial portions of the Software. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  * THE SOFTWARE. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |  * @author    Andreas Heigl<[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |  * @copyright 2016-2016 The callingallpapers.com Developer Team | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  * @license   http://www.opensource.org/licenses/mit-license.php MIT-License | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |  * @version   0.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |  * @since     16.01.2016 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |  * @link      https://github.com/joindin/callingallpapers | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  | namespace Callingallpapers\Api\Middleware; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  | use Callingallpapers\Api\PersistenceLayer\UserPersistenceLayer; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  | use Psr\Http\Message\ResponseInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  | use Psr\Http\Message\ServerRequestInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  | class OAuth | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |     protected $app; | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 40 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 41 |  |  |     public function __construct($app) | 
            
                                                                        
                            
            
                                    
            
            
                | 42 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 43 |  |  |         $this->app = $app; | 
            
                                                                        
                            
            
                                    
            
            
                | 44 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |      * Example middleware invokable class | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |      * @param  \Psr\Http\Message\ServerRequestInterface $request  PSR7 request | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |      * @param  \Psr\Http\Message\ResponseInterface      $response PSR7 response | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |      * @param  callable                                 $next     Next middleware | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |      * @return \Psr\Http\Message\ResponseInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |     public function __invoke( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |         ServerRequestInterface $request, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |         ResponseInterface $response, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |         callable $next | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |     ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |         $auth = $request->getHeader('Authenticate'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |         if ($request->getMethod() === 'GET') { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |             // Get is allowed without authentication | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |             // Rate-Limit is handlede by another Middleware | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |             return $next($request, $response); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |         if (empty($auth)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |             return $this->getNoAuthResponse($response); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |         $bearer = explode(' ', $auth[0]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |         if (! isset($bearer[1])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |             return $this->getNoAuthResponse($response); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |         $bearer = $bearer[1]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |         $upl = new UserPersistenceLayer($this->app->getContainer()['pdo']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |         try { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |             $user = $upl->getUserForToken($bearer); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |         } catch (\Exception $e) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |             return $this->getNoAuthResponse($response, 'invalid token', 'Invalid Access-Token provided'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |         $request = $request->withAttribute('user', $user['user']); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |         return $next($request, $response); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |     protected function getNoAuthResponse($response, $error = 'no token', $description = 'No Access-Token provided') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |         $response = $response->withHeader('WWW-Authenticate', 'Bearer realm="callingallpapers", error="' . $error . '", error_desciption="' . $description . '"'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |         $response = $response->withStatus(401); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |         return $response; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 96 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 97 |  |  |  |