| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | namespace Firesphere\GraphQLJWT\Authentication; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  | use Firesphere\GraphQLJWT\Helpers\HeaderExtractor; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | use SilverStripe\Control\HTTPRequest; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | use SilverStripe\ORM\ValidationException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | use SilverStripe\Security\AuthenticationHandler; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | use SilverStripe\Security\Member; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | use SilverStripe\Security\Security; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * Class JWTAuthenticationHandler | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  * @package Firesphere\GraphQLJWT | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 17 |  |  |  */ | 
            
                                                                        
                            
            
                                    
            
            
                | 18 |  |  | class JWTAuthenticationHandler implements AuthenticationHandler | 
            
                                                                        
                            
            
                                    
            
            
                | 19 |  |  | { | 
            
                                                                        
                            
            
                                    
            
            
                | 20 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 21 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 22 |  |  |      * @var JWTAuthenticator | 
            
                                                                        
                            
            
                                    
            
            
                | 23 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 24 |  |  |     protected $authenticator; | 
            
                                                                        
                            
            
                                    
            
            
                | 25 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 26 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 27 |  |  |      * @return mixed | 
            
                                                                        
                            
            
                                    
            
            
                | 28 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 29 |  |  |     public function getAuthenticator() | 
            
                                                                        
                            
            
                                    
            
            
                | 30 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 31 |  |  |         return $this->authenticator; | 
            
                                                                        
                            
            
                                    
            
            
                | 32 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 33 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 34 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 35 |  |  |      * @param mixed $authenticator | 
            
                                                                        
                            
            
                                    
            
            
                | 36 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 37 |  |  |     public function setAuthenticator($authenticator) | 
            
                                                                        
                            
            
                                    
            
            
                | 38 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 39 |  |  |         $this->authenticator = $authenticator; | 
            
                                                                        
                            
            
                                    
            
            
                | 40 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 41 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 42 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 43 |  |  |      * @param HTTPRequest $request | 
            
                                                                        
                            
            
                                    
            
            
                | 44 |  |  |      * @return null|Member | 
            
                                                                        
                            
            
                                    
            
            
                | 45 |  |  |      * @throws \OutOfBoundsException | 
            
                                                                        
                            
            
                                    
            
            
                | 46 |  |  |      * @throws \BadMethodCallException | 
            
                                                                        
                            
            
                                    
            
            
                | 47 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 48 |  |  |     public function authenticateRequest(HTTPRequest $request) | 
            
                                                                        
                            
            
                                    
            
            
                | 49 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 50 |  |  |         $matches = HeaderExtractor::getAuthorizationHeader($request); | 
            
                                                                        
                            
            
                                    
            
            
                | 51 |  |  |         // Get the default user currently logged in via a different way, could be BasicAuth/normal login | 
            
                                                                        
                            
            
                                    
            
            
                | 52 |  |  |         $member = Security::getCurrentUser(); | 
            
                                                                        
                            
            
                                    
            
            
                | 53 |  |  |  | 
            
                                                                        
                            
            
                                                                    
                                                                                                        
            
            
                | 54 |  | View Code Duplication |         if (!empty($matches[1])) { | 
                            
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                | 55 |  |  |             // Validate the token. This is critical for security | 
            
                                                                        
                            
            
                                    
            
            
                | 56 |  |  |             $member = $this->authenticator->authenticate(['token' => $matches[1]], $request); | 
            
                                                                        
                            
            
                                    
            
            
                | 57 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 58 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 59 |  |  |         if ($member) { | 
            
                                                                        
                            
            
                                    
            
            
                | 60 |  |  |             $this->logIn($member); | 
            
                                                                        
                            
            
                                    
            
            
                | 61 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 62 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 63 |  |  |         return $member; | 
            
                                                                        
                            
            
                                    
            
            
                | 64 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 65 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 66 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 67 |  |  |      * Authenticate on every run, based on the header, not relying on sessions or cookies | 
            
                                                                        
                            
            
                                    
            
            
                | 68 |  |  |      * JSON Web Tokens are stateless | 
            
                                                                        
                            
            
                                    
            
            
                | 69 |  |  |      * | 
            
                                                                        
                            
            
                                    
            
            
                | 70 |  |  |      * @param Member $member | 
            
                                                                        
                            
            
                                    
            
            
                | 71 |  |  |      * @param bool $persistent | 
            
                                                                        
                            
            
                                    
            
            
                | 72 |  |  |      * @param HTTPRequest|null $request | 
            
                                                                        
                            
            
                                    
            
            
                | 73 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 74 |  |  |     public function logIn(Member $member, $persistent = false, HTTPRequest $request = null) | 
            
                                                                        
                            
            
                                    
            
            
                | 75 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 76 |  |  |         Security::setCurrentUser($member); | 
            
                                                                        
                            
            
                                    
            
            
                | 77 |  |  |     } | 
            
                                                                        
                            
            
                                    
            
            
                | 78 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 79 |  |  |     /** | 
            
                                                                        
                            
            
                                    
            
            
                | 80 |  |  |      * @param HTTPRequest|null $request | 
            
                                                                        
                            
            
                                    
            
            
                | 81 |  |  |      * @throws ValidationException | 
            
                                                                        
                            
            
                                    
            
            
                | 82 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |     public function logOut(HTTPRequest $request = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |         // A token can actually not be invalidated, but let's invalidate it's unique ID | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |         // A member actually can be null though! | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |         if ($request !== null) { // If we don't have a request, we're most probably in test mode | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |             $member = Security::getCurrentUser(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |             if ($member) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |                 // Set the unique ID to 0, as it can't be nullified due to indexes. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |                 $member->JWTUniqueID = 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |                 $member->write(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |         // Empty the current user and pray to god it's not valid anywhere else anymore :) | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 96 |  |  |         Security::setCurrentUser(); | 
            
                                                                        
                                                                
            
                                    
            
            
                | 97 |  |  |     } | 
            
                                                                        
                                                                
            
                                    
            
            
                | 98 |  |  | } | 
            
                                                                        
                                                                
            
                                    
            
            
                | 99 |  |  |  | 
            
                        
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.