| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | declare(strict_types=1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * Caridea | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * Licensed under the Apache License, Version 2.0 (the "License"); you may not | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  * use this file except in compliance with the License. You may obtain a copy of | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  * the License at | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * http://www.apache.org/licenses/LICENSE-2.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * Unless required by applicable law or agreed to in writing, software | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  * License for the specific language governing permissions and limitations under | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  * the License. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  * @copyright 2015-2018 LibreWorks contributors | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  * @license   Apache-2.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  | namespace Caridea\Acl; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |  * An authorization subject: usually either a role or a principal. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |  * @copyright 2015-2018 LibreWorks contributors | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |  * @license   Apache-2.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  | class Subject | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |     const PRINCIPAL = 'principal'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |     const ROLE = 'role'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |      * @var string The subject type | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |     private $type; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |      * @var string The subject identifier | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |     private $id; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |      * Creates a new BasicSubject. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |      * @param string $type The subject type (e.g. "role", "principal") | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |      * @param string $id The subject identifier | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 | 2 |  |     protected function __construct(string $type, string $id) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 | 2 |  |         $this->type = $type; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 | 2 |  |         $this->id = $id; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 | 2 |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |      * Gets the identifier of the subject, usually a unique key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      * @return string The subject identifier | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 | 2 |  |     public function getId(): string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 | 2 |  |         return $this->id; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |      * Gets the type of the subject. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |      * @return string The subject type | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 | 2 |  |     public function getType(): string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 | 2 |  |         return $this->type; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |      * Gets a string representation of this subject. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |      * @return string The string representation | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 | 2 |  |     public function __toString(): string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 | 2 |  |         return "{$this->type}:{$this->id}"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |      * Gets a Subject for a principal (such as a username). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |      * @param string $id The subject identifier | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |      * @return Subject The subject created! | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 | 1 |  |     public static function principal(string $id): Subject | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 | 1 |  |         return new self(self::PRINCIPAL, $id); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |      * Gets a Subject for a role. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |      * @param string $id The subject identifier | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |      * @return Subject The subject created | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 101 |  |  |      */ | 
            
                                                        
            
                                    
            
            
                | 102 | 1 |  |     public static function role(string $id): Subject | 
            
                                                        
            
                                    
            
            
                | 103 |  |  |     { | 
            
                                                        
            
                                    
            
            
                | 104 | 1 |  |         return new self(self::ROLE, $id); | 
            
                                                        
            
                                    
            
            
                | 105 |  |  |     } | 
            
                                                        
            
                                    
            
            
                | 106 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 107 |  |  |  |