| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  *  Copyright (C) 2016 SURFnet. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  *  This program is free software: you can redistribute it and/or modify | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  *  it under the terms of the GNU Affero General Public License as | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  *  published by the Free Software Foundation, either version 3 of the | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  *  License, or (at your option) any later version. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  *  This program is distributed in the hope that it will be useful, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  *  but WITHOUT ANY WARRANTY; without even the implied warranty of | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  *  GNU Affero General Public License for more details. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  *  You should have received a copy of the GNU Affero General Public License | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  *  along with this program.  If not, see <http://www.gnu.org/licenses/>. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  | namespace fkooman\RemoteStorage\Http; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  | class Session implements SessionInterface | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |     /** @var bool */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |     private $secureOnly = true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     public function setSecureOnly($secureOnly) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |         $this->secureOnly = (bool) $secureOnly; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |     public function startSession() | 
                            
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                | 32 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |         if ('' === session_id()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |             session_set_cookie_params(0, '/', '', $this->secureOnly, true); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |             session_start(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |         // https://paragonie.com/blog/2015/04/fast-track-safe-and-secure-php-sessions | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |         // Make sure we have a canary set | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 40 |  | View Code Duplication |         if (!isset($_SESSION['canary'])) { | 
                            
                    |  |  |  | 
                                                                                        
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                | 41 |  |  |             session_regenerate_id(true); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |             $_SESSION['canary'] = time(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |         // Regenerate session ID every five minutes: | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 45 |  | View Code Duplication |         if ($_SESSION['canary'] < time() - 300) { | 
                            
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                | 46 |  |  |             session_regenerate_id(true); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |             $_SESSION['canary'] = time(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |     public function set($key, $value) | 
                            
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                | 52 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |         $this->startSession(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |         $_SESSION[$key] = $value; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |     public function delete($key) | 
                            
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                | 58 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |         $this->startSession(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |         if ($this->has($key)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |             unset($_SESSION[$key]); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |     public function has($key) | 
                            
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                | 66 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |         $this->startSession(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |         return array_key_exists($key, $_SESSION); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 71 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 72 |  |  |     public function get($key) | 
                            
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                | 73 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 74 |  |  |         $this->startSession(); | 
            
                                                                        
                            
            
                                    
            
            
                | 75 |  |  |         if ($this->has($key)) { | 
            
                                                                        
                            
            
                                    
            
            
                | 76 |  |  |             return $_SESSION[$key]; | 
            
                                                                        
                            
            
                                    
            
            
                | 77 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 78 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 79 |  |  |         return; | 
            
                                                                        
                            
            
                                    
            
            
                | 80 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |     public function destroy() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |         $this->startSession(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |         session_destroy(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 87 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 88 |  |  |  | 
            
                        
Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: